Vacuum Brazing Furnace
1. Quantity: 1 set
2. Usage: The equipment is mainly used in the automotive, aircraft, ships, compressors, air separation equipment, carbide, diamond, household appliances, oil coolers and other heat exchangers and a variety of antennas, Vacuum brazing of communication components.
3. The scope of supply:
3.1 Equipment Scope: Vacuum brazing furnace (set).
3.2 Service requirements: The seller in accordance with the scope of supply of equipment provided at the same time, to provide the corresponding accompanying services, including: technical information, installation, commissioning, on-site commissioning, vacuum brazing technical support, process training, vacuum furnace operation Personnel maintenance personnel, vacuum brazing quality control training.
4. The basic characteristics:
4.1 The equipment structure design advanced reasonable, can satisfy the user to complete above use request. Equipped with the international advanced level of reliable automatic control, monitoring, tracking and self-diagnosis functions. Its supporting products and functional components with the international advanced level, able to adapt to long-term, stable, safe and reliable production needs. The energy saving effect of the equipment is good. Use, operation, maintenance convenient and simple, beautiful shape, safe and reliable, good after-sales service.
4.2 Equipment design, manufacturing should be consistent with the corresponding national and industry standards and norms.
4.3 Equipment All parts and various instruments of the unit of measurement should be used in international units (SI) standards.
5. The main structure of the vacuum brazing furnace:
Vacuum furnace host is the horizontal, single room. It consists of vacuum furnace, front and rear furnace cover, heating room, vacuum system, inflatable system, pneumatic system, water cooling system, electrical control system and so on.
● The furnace body is a double-layer cylinder structure, sandwich within the access to cooling water;
Heating system, including soft and hard carbon felt composite insulation layer, high temperature molybdenum heater and material stage.
● Vacuum system according to the requirements of the ultimate vacuum with three pumps;
● cooling water circulation system;
Pneumatic system for the equipment of the various pneumatic valves to provide work motivation;
●The control system can carry out accurate and reliable control to the components through the programmable logic controller.
● The furnace is equipped with hydraulic forklift truck.
Composition and characteristics of equipment
5.1 Vacuum brazing furnace body, furnace cover and operating mechanism:
Vacuum brazing furnace body, furnace cover is designed according to the standard of vacuum vessel, adopt double-layer cylinder structure, sandwich into the cooling water, inlet and drainage design to avoid the temperature dead zone. The furnace body has a vacuum system, temperature measurement system, heating power supply current bus and other interfaces.
5.2 Heating system:
Vacuum brazing furnace heating chamber for the stainless steel composition of the rectangular frame structure, the bottom of the six wheels can be along the furnace body horizontal movement, easy to maintain the heating room. Insulation screen soft, hard carbon felt composite structure, good insulation effect, low heat loss. Heating element using high temperature molybdenum belt, heating evenly, heat loss is small. The introduction of heating electrode for the specially designed copper water-cooled electrode, the water-cooled electrode design not only guarantees the good sealing and insulation with the furnace body, but also has good contact with the introduction of the power connection line, disassembly is convenient, the cooling device in the electrode can reduce the temperature of the conductive joint and prevent the burning of the vacuum sealing material, thus affecting the vacuum in the furnace. The furnace inner material frame consists of high-strength graphite components and ceramic insulating parts.
5.3 Vacuum system:
The vacuum brazing furnace consists of the following vacuum system, including H-150 slide valve pump, ZJP-800 Roots pump, KT-1000 diffusion pump. Also includes high vacuum baffle valve, vacuum pipe, vacuum gauge tube, pressure gauge and digital composite vacuum gauge.
5.4 Inflatable system:
By the pneumatic cut-off valve, manual closing valve, solenoid valve, gas pipeline and other components.
5.4.1 The heating process needs to increase the furnace pressure, the use of fine-tuning valve on the furnace pressure to adjust and control.
5.4.2 Charge back gas purity: 99.99% for general parts. It is recommended to use high purity argon or nitrogen.
5.5 Pneumatic system: For each pneumatic valve power supply work. The use of imported oil mist, pipe joints, reversing valve and pipeline accessories.
5.6 Water cooling system: by the open cooling water distribution device, through its connecting pipe and accessories and equipment corresponding to the pipe joints connected to form a complete set of equipment, water cooling system. Water diversion device with inlet pipe, valve and electrical contact pressure gauge. The electrical contact pressure gauge and the control part consist of the water supply undervoltage interlock protection system.
5.7 Electrical control systems:
Able to achieve instrument control and computer monitoring and can output process data.
5.7.1 Temperature control system using PID mediation, high precision temperature control. Recorded with paperless recorder, accuracy of 0.2.
5.7.2 Thermocouple (S type) is a dual-core thermocouple with one core for temperature control and the other for recording and overtemperature alarms.
5.7.3 control system adopts IEC standard, select imported electrical components and measuring elements, simple and intuitive operation. Including: the overall control cabinet 1 set (including: buttons, lights, alarm, automatic air switch, AC contactor, programmable controller (Japan Omron CPM2A), DC power supply and related operation panel, connecting cable, etc.)The control cabinet is equipped with equipment simulation screen and operation button, indicator light and other components, can achieve pneumatic system, vacuum system, heating system control, to achieve a more complete protection, alarm function. Electrical control system control sensitive, reliable operation, easy maintenance.
5.7.4 Vacuum measuring instruments ZDF-Ⅲ digital vacuum gauge (Chengdu Zhenghua Vacuum Instrument Company) measuring range from the atmosphere to 10-7Pa, there are four set point relay, for the automatic control of the work process, with Record the output interface, easy to record the vacuum.
5.7.5 Heating power supply using SCR power, heating using low voltage high current form.
5.7.6 Major electrical components such as contactors, thermal protection switches, etc. are imported or joint venture products.
5.8. The external truck adopts hydraulic forklift truck.
6. The main technical indicators of equipment
6.1 Furnace: single room, horizontal
6.2 Working area: 900 (L) × 600 (W) × 600 (H) mm
6.3 Loading: 500Kg / furnace (including fixture)
6.4 Maximum temperature: 1320 ℃.
6.5 ultimate vacuum: 6 × 10 - 4Pa (empty furnace, cold, purified)
6.6 Pressure rise rate: <0.2Pa / h
6.7 Temperature uniformity: ≤ ± 3 ℃
6.8 Temperature control accuracy: ≤ ± 1 ℃
6.9 Loading method: hydraulic forklift
6.10 Heating power: 150KW
6.11 No-load heating time: from room temperature rose to 1320 ℃ ≤ 30 minutes
6.12 Maximum cooling pressure: 2 bar
7. The main equipment configuration
7.1 Furnace shell(double water cooled sleeve structure)
7.2 Vacuum system
7.2.1 H-150 slide valve pump
7.2.2 ZJP-800 Roots Pumps
7.2.3 KT-1000 Diffusion Pump
7.2.4 Bellows and piping
7.3 Heating room
7.3.1 Heating chamber shell (stainless steel)
7.3.2 Thermal insulation (soft and hard carbon felt)
7.3.3 Heater (high temperature molybdenum tape)
7.3.4 Temperature measuring element (S even)
7.3.5 Water-cooled electrode
7.3.6 Ceramic parts
7.4 Automatic inflatable and partial pressure system
7.5 Cooling water system
7.6 air handling system
7.7 heating power 150KVA
7.8 hydraulic forklift
7.9 control system
7.9.1 temperature controller FP23
7.9.2 Programmable controller CPM2A
7.9.3 Digital composite vacuum gauge ZDF-Ⅲ
7.9.4 Recorder AX-104
7.9.5 control cabinet
7.9.6 Other electrical components and cables
8. Provide information
8.1. Layout drawing of outline dimension;
8.2 Foundation conditions and dynamic conditions map;
8.3 General drawings of equipment;
8.4 Schematic and wiring diagram of electronic control system;
8.5 equipment maintenance manual;
8.6 Main supporting product instruction manual and certificate;
8.7 Gas Road and waterway schematic diagram;
8.8 Easily damaged parts drawings;
8.9 Standard parts list;
8.10 Necessary Maintenance sketch.
9. Equipment installation operating conditions
9.1 Total installed capacity of equipment: 225KVA
9.2 Lifting equipment: 5 tons
9.3 Water source:
9.3.1 Flow: 6M3 / h
9.3.2 Water pressure: 0.2-0.4Mpa
9.3.3 Water temperature: ≤35 ℃
9.4 Gas source:
9.4.1 Flow: 3L / s
9.4.2 Pressure: 0.4Mpa
9.5 Personnel status:
9.5.1 Installation workers 1-2;
9.5.2 Electrical Engineer 1 person;
10. Technical Services and training
10.1 Dispatch qualified service personnel to carry out installation training, installation and inspection, and is responsible for the supply of vacuum brazing furnace and the central control system equipment debugging and boot services. During the warranty period, the seller will provide free technical service.
10.1.1 Will be sent to comply with the rules and regulations, have a strong sense of professionalism and responsibility, familiar with the equipment, have experienced and healthy personnel to the buyer on-site service.
10.1.2 The buyer shall cooperate with the seller's on-site service and provide convenience in life, transportation and communication.
10.1.4 In order to allow the vacuum furnace equipment and control system to be installed and operated normally, we will provide the appropriate technical training free of charge so that the trainees can master the vacuum furnace and its control system and master the equipment to achieve good operation State and to solve the problem of handling conventional faults.
10.1.5 Before installation of the equipment, the buyer may send the engineer to the seller for a three-day vacuum brazing furnace, installation, operation, maintenance and maintenance training. After the on-site commissioning, the seller's engineer conducts three days of operation and maintenance training for the buyer's operator at the site. The time, place, number and content of the training may be agreed upon by both parties.
10.2 After-sales service commitment
10.2.1 when the equipment arrives at the scene, the buyer shall notify the seller one weeks in advance to open the box for inspection, If the seller informs the buyer not to participate in the unpacking or not to be informed by the buyer, the buyer will open the box.
10.2.2 During the commissioning and acceptance of the equipment, damage to the equipment or spare parts caused by the seller's liability is free of charge or replacement by the seller.
10.2.3 Within one year after the normal operation of the equipment, the seller will be responsible for the quality of the equipment due to the seller's quality problems.
10.2.4 The seller guarantees long-term preferential supply of spare parts and assists the buyer in resolving the technical problems arising from the equipment. The buyer will inform the seller of the operation of the equipment.
10.2.5 When the seller has technical improvements or updates to the equipment provided, the relevant information shall be promptly communicated to the buyer.
10.2.6 Quality assurance period for the equipment shipped 18 months from the date of commissioning or acceptance of the qualifying date of 12 months, first to prevail.
10.2.7 If there is a problem with the equipment, the seller will respond within 2 hours during the warranty period, repair the site within 2-8 hours, and provide the necessary spare parts for repair. During the warranty period, the seller will be in the 2-8 hours advice to the buyer. After the warranty period to provide equipment for life-long paid technical services.
10.2.8 Warranty period: one year from the date of acceptance of equipment, non-operational errors caused by equipment damage, to provide free technical services.
11. Equipment manufacturing cycle
After the contract is signed and the prepayment is credited, the four and a half months will be delivered at the supplier's site.
12. Delivery of technical information
12.1 Vacuum brazing furnace Dimensions (including nozzle connection position and diameter)
12.2 Installation proposal (including layout requirements, related recommendations, etc.)
12.3 Gas, water and electricity flow chart
12.4 List of electricity, gas and water consumption
12.5 Instrument, gas, electrical wiring diagram
12.6 Installation guide
All technical drawings are in international standard units. The vacuum aluminum brazing test furnace operation manual is provided with 2 copies of the relevant drawing.
13. Equipment performance assurance and acceptance
13.1 Performance guarantee
Meet the technical requirements in the document and the company test standards.
13.2 Quality assurance
The implementation of strict quality standards and management system, through the ISO9000 and ISO14000 quality certification.
13.3 Factory acceptance
13.3.1 Factory inspection is an important part of quality control. The seller strictly carries on the inspection and the test to each production link in the factory, and provides the certificate of the equipment.
13.3.2 The scope of inspection includes raw materials and components of the factory, parts processing, assembly, machine testing and after the factory to the buyer installation site test.
13.3.3 In the manufacturing process, the buyer reserves the right to inspect A, the buyer that the need for A check, will send a certain technical level and experience and strong sense of the technical staff to participate in equipment manufacturing and factory inspection, testing and monitoring So that the seller will cooperate fully, but this does not replace and reduce the seller's responsibility for quality.
13.4 Performance acceptance test
13.4.1 The buyer has the right to require testing of the guarantee value of the equipment and the seller may provide the equipment with the means and methods for the buyer's reference.
13.4.2 The purpose of the acceptance test is to verify that the performance of the vacuum furnace equipment provided by the seller meets the requirements of the technical specifications.
13.4.3 Vacuum brazing furnace In addition to performing the performance test at the manufacturer, the purchaser has the right to conduct a performance acceptance test on the installation site of the vacuum brazing furnace. The seller should be notified after the end of the installation of a week to the buyer to the scene for commissioning acceptance.
13.4.4 Performance acceptance test in normal operation 24 hours, it is carried out immediately after system testing.
13.4.5 The contents of the performance acceptance test shall be determined by the buyer in accordance with the technical documents of the contract and the relevant test standards.
13.4.6 Provide the necessary technical and personnel coordination.
13.4.7 The cost of the seller's personnel participating in the field performance acceptance test shall be borne by the seller.
13.4.8 Performance Acceptance Test The results report is written by the buyer, the seller participates, and the joint signature confirms the conclusion. If the two sides have different views on the test results, the two sides resolved through consultation.
14. Spare parts list
14.1 Seal Ring 1 set
14.2 Ceramic insulation 50 pieces
14.3 Conductive rod insulation 5 sets
14.4 Vacuum Regulator ZJ-52T3 1 piece
14.5 Vacuum Regulator ZJ-273 1 piece
14.6 Automatic air switch 3 pieces
14.7 AC contactor 3 pieces
14.8 Electric contact pressure gauge 2 pieces
14.9 Random tools open wrench 1 set, digital multimeter 1 piece
Vacuum brazing furnace electrical control system components
Vacuum brazing furnace electrical control system consists of temperature controller, programmable controller, SCR regulator, mass flow meter, vacuum gauge and industrial computer and other components to achieve power supply, control, recording, monitoring, alarm protection The Instrument precision temperature controller using intelligent instruments, the Japanese conductive company products FP23, temperature control accuracy of not less than ± 1 ℃, independent display.
The FP23 (including two channel inputs) has 20 sets of curves, 20 segments for each group, and also a maximum of 400 segments, with a maximum time of 99 minutes 59 seconds or 99 hours, 59 minutes, which can be linked or repeated. Double row large led five-bit display, display resolution 0.1, (degrees above also with a decimal point). The servo start function of the PV value: The first program jumps to the actual temperature point starts to execute, rather than waits for the program to start the setting value, effectively saves the energy and the time.
Programmable controller selected Japan Omron products, comprehensive control of the operation of equipment, according to process requirements, to provide sequential control signals, while collecting the scene of the feedback signal to provide conversion, chain, instructions and alarm signals.
Thermocouple: K type thermocouple.
Vacuum measurement using digital vacuum gauge and supporting the regulation, from the measurement range from the atmosphere to 10-1Pa, two-point output control for the process of automatic control and recording.
Industrial computer comes with a record curve, can simultaneously record the furnace temperature, vacuum or furnace pressure. Can achieve the temperature and vacuum (pressure) of the crossed records, measuring range: according to the need to set.
The touch screen can display the operating status of the device in real time. With over-temperature, water safety protection, and sound and light alarm system, the furnace should be a safety valve device, with air pressure, vacuum, water pressure, heating interlock circuit.
Components Introduction Control system components taking into account the life and reliability, the choice of high reliability, high precision components. Including: OMRON, SIEMENS, SHIMEDEN, Merlin Gerin etc.
Vacuum brazing furnace working process
Vacuum brazing the main work process: the first assembly of the product parts into the vacuum chamber, start the mechanical vacuum pump, vacuum system to a certain degree of vacuum, the Roots pump and then turn on the diffusion pump, the vacuum chamber is pumped to the required vacuum degree and began to heat up as required. The vacuum system should be continuously evacuated throughout the heating process to maintain the required vacuum. Vacuum brazing heating speed should not be too fast, so as to avoid a sharp decline in vacuum. Vacuum brazing heating process is completed, the forced cooling, when the vacuum brazing furnace temperature dropped to the temperature of 80 ℃ baked out, complete the product of the vacuum brazing work.
The vacuum gauge is used to display the vacuum pressure and is automatically controlled. Composite vacuum gauge with high-pressure metal tube ZJ-52T resistance gauge, vacuum pressure can be measured. Matching the output of the 2-way switch signal for the PLC to complete the completion of the pump, valves and other automatic control and security control of the chain. The control pressure is set by pressing the front panel. The operator must have read the instructions for the vacuum gauge. Before proceeding with any steps or operations, please read each chapter thoroughly and make sure that you have understood the information for each chapter and related chapter. If there are still problems, please contact the system provider.
Digital current, voltmeter
Digital ammeter can be re-calibrated, the method see the instructions.
The operator must have read the instructions of the instrument. Before proceeding with any steps or operations, please read each chapter thoroughly and make sure that you have understood the information for each chapter and related chapter. If there are still problems, please contact the system provider.
The function of the cabinet panel
Start and stop of the device
After the device's main power (air switch on the control cabinet) is turned on, the device is in the stop (standby) state, and the "stop" button's red light is on. When the "Control Power" button is pressed, the device is activated and the green light on the "Control Power" button lights up and the device enters the working state.
The cabinet control panel is equipped with three-phase power indicator. After the control power is turned on, if the phase of the phase is phase loss, the "phase failure alarm" indicator will be on and the sound and light alarm will be alarmed. Do not perform any operation. If the equipment is heating, stop heating and turn off the vacuum (Whether it is manual or automatic, the safety system will automatically shut down the vacuum unit, then need to confirm whether the vacuum unit has been reliably closed!), Check and repair the power cord and press the "alarm release" button to lift the alarm state, you can Return to normal work.
The alarm screen comes with alarm window to record "overtemperature alarm", "overpressure alarm", "water pressure alarm", "air pressure alarm", "fan failure", "phase failure alarm", indication when corresponding alarm occurs Bright and accompanied by sound and light alarm. Water pressure alarm for a number of seconds delay, in the event of insufficient water pressure at the same time, "water pressure" indicator light, but not immediately sound and light alarm, when a few seconds of continuous water pressure, sound and light alarm action. If you find a "water pressure alarm" light, the sound and light alarm does not work, you should check the reasons for water pressure instability, press the "alarm release" button off the "water pressure" indicator. When the water pressure alarm occurs, and the sound and light alarm action, the security system will automatically turn off the heating power, stop the diffusion pump and turn off the main pumping valve and other water needs of the equipment, the failure of the operator to confirm the above action has been implemented
Operation mode indication If the automatic mode is selected, the "Auto mode" indicator is red.
Automatic mode of operation
When the machine is working automatically, the PLC monitors the running status of the equipment and automatically controls the operation of the device. It is forbidden to manually intervene. when an automatic failure occurs, the user according to the situation can be stopped or switched to manual mode stop. This function is related to the process of the workpiece, the scene will be based on the needs of users to change, may cancel the model.
Automatic mode of operation
When the machine is working automatically, the PLC monitors the running status of the equipment and automatically controls the operation of the device. It is forbidden to manually intervene. When an automatic fault occurs, the user can stop according to the fault or stop the manual mode. This function is related to the process of the workpiece, the scene will be based on the needs of users to change, may cancel the model.
About emergency stop
When the equipment fails, the safety protection system to respond is not enough to meet the requirements, the site operator should promptly press the "emergency stop" button, then "emergency stop" button on the light, the control system will shut down most of the equipment , The necessary equipment will still be in the running state waiting for the site operator to adjust or turn off the corresponding equipment according to the scene. After the emergency stop control part is still charged, then do not carry out maintenance work, otherwise it may cause personal injury or damage equipment
Vacuum brazing furnace for industrial control with computer instructions
This section focuses on the mode of operation, and the specific interface content may differ from your device.
Site operation process has been modified according to customer requirements, with reference to field engineers training and printing
1 Check the cooling cycle of water is smooth, the water pressure should be maintained at 0.3MPa or more.
2 Spare water can work.
3 Pneumatic air pressure 0.6MPa or more.
4 Rotary vane pump pump oil level normal, not lack of oil.
5 Equipment without alarm.
6 Doors are locked.
7 Electrical control system parameters
7.1 Pressure parameter
The pressure control paramet, , , , , , , , , , , , , , , , , , , , , , ers are set on the ZDR-I vacuum gauge and electrical contact pressure gauge. The purpose of the control class pressure parameter is to ensure the safety of the person and the equipment and the normal operation of the automatic control program.
7.1.1. The degree of vacuum at the, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , beginning of heating
This parameter is a parameter set, , , , , , , , , , , , , , , , , for the ZDF-II vacuum gauge. This parameter can be adjusted according to the specific requirements of the use. This parameter has been set at the factory. If this parameter is changed too much, please pay attention to the oxygen content of the gas inside the furnace, otherwise it may make the workpiece failed!
7.1.2. The highest pressure (overpressure alarm pressure)
This parameter is the setting parameter of the electrical contact pressure gauge. The main function is to limit the maximum pressure to inflate the equipment to protect the equipment from its working pressure. This parameter has been set at the factory and the user is not allowed to change. For details of the overpressure alarm and precautions please refer to - Alarm Indication - Overpressure alarm.
Cooling water pressure
In order to keep the cooling circulating water can be normal circulation to effectively cool the ancillary equipment, to keep the cooling water has a certain pressure. Normal operation should be kept at a pressure of 0.15MPa or more. When the water pressure is too low, a water pressure alarm will occur. In the water pressure is too low at the same time, "water pressure" indicator light, in the next few seconds, if the water pressure is not back to normal, sound and light alarm action, security system will automatically stop heating and diffusion pump as well as other related equipment. After troubleshooting, press the "alarm release" button to lift the alarm, you can resume normal work. For details of water pressure alarm and precautions please refer to - Alarm instructions - Water pressure alarm -. This parameter has been set at the factory. If you change the parameters, the device will be permanently damaged!
7.2. Temperature parameter
Vacuum brazing furnace temperature control parameters are FP23 controller set parameters, the temperature parameters of the automatic program operation, security protection system plays an important role in the normal work.
7.2.1. Highest temperature withstand
This parameter is the setting parameter of the FP23 controller. This parameter is the maximum temperature of the device. If the internal temperature of the equipment reaches and exceeds this set temperature, an overtemperature alarm occurs. For more information on over-temperature alarm, see - over-temperature alarm. This parameter has been set at the factory. If you change the parameters, the device may be permanently damaged!
7.2.2. Temperature uniformity of homogeneous temperature zone
This parameter is an important parameter of the equipment. The uniformity of the temperature range is within the working temperature range, that is, 900X600X600, and the internal temperature difference is less than ± 3 ℃ at 900 ℃. If the PID parameters of the FP23 controller are modified, the temperature uniformity parameter may exceed the normal value.
7.2.3. The preparation of heating curve
The heated process curve is entered on the master meter, the FP23 controller. Users only need to follow the instructions to enter the curve, it is recommended not to change the PID parameters, can not change the relay output parameters!
7. 3. Delay protection of water pressure and air pressure alarm
To prevent errors due to acquisition of signal interference alarm cause safety protection system of action, resulting in unnecessary losses, , water pressure and air pressure alarm using delay mechanism, That is, the continuous number of seconds of water pressure, pressure is insufficient, water pressure, air pressure alarm action, security system action. And when the water pressure, the air pressure alarm is due to disturbances and instantaneous occurrence and release, or water pressure, pressure due to the use of equipment load too large and short time to reduce, and then automatically recover, indicating "water pressure alarm" or "air pressure alarm" indicator light, does not occur sound and light alarm, security system does not act.
For instructions on water pressure and air pressure alarm, see - Alarm indication
8. Security system and safety chain protection system
8. 1 Brief introduction of security protection system and safety interlock system
The equipment of vacuum brazing furnace has the conditions of use. In order to protect such equipment, the control system of vacuum brazing furnace is equipped with safety chain protection system. When the equipment is used improperly, may cause the equipment or the personal injury, the security protection system is in the occurrence alarm or the illegal operation equipment, automatically protects, the maximum protection person and the equipment safety.
8.2 Equipment conditions under protection systems
8.2.1 In non-debug mode
In the debug mode, all security systems and security chain protection systems are shielded. Normal operation, prohibited from working in debug mode. For a more detailed description of the commissioning see - About Debugging.
8.2.2 All types of alarms have not occurred
In the event of an alarm, the safety protection system will close some of the relevant ancillary equipment and prohibit operation.
8.2.3 The emergency stop button is not pressed
When the emergency stop button is pressed, the security system will shut down some related equipment and prohibit the operation.
8.2.4 Rotary vane pump
Vacuum pressure is lower than atmospheric pressure.
Fan can not start and stop frequently.
No fan overload alarm occurred.
8.2.6 The Inflatable valve
Reliable closure of the furnace door
The main pumping is in the closed state
No overpressure alarm has occurred
8.2.7 Open the Furnace Door
In the furnace can not be higher than atmospheric pressure
Ammonia inflatable valve should be closed
Can not be in the heating state
8.2.8 Close the furnace door
General unrestricted condition
The pressure is below the set heating start pressure
The door is closed
8.2.10 Vacuum gauge, power supply
Open when the vacuum is pre-pumped and closed after inflatable valve is open.
8.3 Safety protection in case of alarm
The following lists the possible protection actions that the security protection system may make when all types of alarms occur. The content is for reference only.
8.3.1 Overtemperature alarm
When the furnace temperature is higher than the set over-temperature alarm temperature, over-temperature alarm occurs.
When the overtemperature alarm occurs:
‚ Air inflation, air filling and partial pressure stop
8.3.2 Overpressure alarm
If the internal pressure of the furnace is higher than 2MPa, overpressure alarm occurs
When an overpressure alarm occurs:
Air inflation, air filling and partial pressure stop
‚ Heating stop
ƒ Fan stop
④ The furnace door can not be opened
8.3.3 Water pressure alarm
When the water pressure in a few seconds are lower than the set of water pressure alarm pressure, the occurrence of water pressure alarm.
When the water pressure alarm occurs:
‚ Evacuation valve is closed
ƒ Rotary vane stop
8.3.4 Air pressure alarm
A pressure alarm occurs when the power source is lower than the set pressure in seconds.
When the air pressure alarm occurs:
Pneumatic valve prohibited action
8.3.5 Lack of phase alarm
When the control cabinet three-phase power out of phase, the occurrence of phase failure alarm. When a phase loss alarm occurs:
The vacuum unit by motor drive stop
‚ The fan stop
8.3.6 Fan failure
When the fan overcurrent, lack of phase, the temperature rise is too high and other failures, the fan failure alarm. When the fan failure alarm occurs, the safety protection system will turn off the fan.
8.3.7 Vacuum pump failure
When the vacuum pump over-current, lack of equal failure, the occurrence of vacuum pump failure alarm.
When a vacuum pump failure alarm occurs, the safety protection system shuts down the failed vacuum pump.
9. Other considerations for equipment use
9.1 Dangerous voltage
Equipment using three-phase 380V power supply, which should meet the requirements of electrical safety specification and this specification.
9.2 Dangerous air pressure
When the inflation pressure is higher than 0.1MPa, it is forbidden to loosen the door lock ring in any way. The use of pressure vessels should be in accordance with local pressure vessel use regulations.
9.3 Clean the inflatable line
The user can choose whether to purify the inflation line.
9.4 In a non-debugged state
Debug mode is designed for electrical engineers to debug the use of special equipment maintenance mode, normal use can not work in the debug mode, the key to debug the knob to be kept by someone.
For more information on debugging, see - About Debugging
9.5 Normal water pressure and air pressure
When the device is working properly, need to have cooling circulating water and power gas source, before the operation should check the pressure value in the normal range, return water should be fluent, otherwise should check water source and gas sources, if the equipment in the absence of water or lack of air conditions, may cause damage to equipment.
9.6 Vacuum maintenance in a non-working state
In order to maintain the device internal components are not oxidized, after each use of equipment, to the furnace body vacuum treatment, to maintain the internal vacuum pressure, is conducive to the work of the device after.
9.7 Nitrogen atmosphere during gas release
When the air cooling is over, the excess nitrogen atmosphere in the furnace is to be released. If the space is small or the air is not flowing, it may cause suffocation and should be discharged outdoors or ventilated.
10. Equipment maintenance and maintenance
10.1 Regular inspection of electrical components
Equipment components required periodic inspection, regular maintenance, parts and components to be damaged to be replaced, replace the model can refer to the replacement parts model.
Regular inspection of mechanical pump oil
Regular inspection and replacement of mechanical pump oil, including rotary vane pump, roots pump, and diffusion pump. Please refer to the operating instructions for the specific pump.
10.2 Regularly clean up the impurities in the furnace
Vacuum equipment in a long time after the use of common causes of impurities, regular cleaning of impurities in the furnace is conducive to the normal operation of equipment.
10.3 Check the electrical contact gauge regularly
The contacts of the electrical contact pressure gauge may fail due to a long time, and should check whether the contact of the electrical contact gauge is reliable every year.
10.4 Pneumatic three-part regular water release and filled with oil
When the three-piece oil cup is activated, inject oil into the oil cup. When the pneumatic three pieces of water in the cup, press the discharge valve, the water release.
10.5 Routine inspection of equipment
Every three months routine check:
1 Check the insulation, not with the furnace body conduction.
2 Clean the furnace to keep the vacuum furnace clean, if found in the furnace dirty, should be cleaned once a month or every week.
3 In place signal check, check the ball valve under the safety valve, the butterfly valve on the vacuum tube, the travel switch of the door cylinder is still reliable or not.
4 Electrical contact pressure gauge contact inspection, electrical inspection of all pressure gauge upper and lower limit contacts are reliable and effective, and set the value back to the original value.
5 Regular inspection of equipment sealing ring, such as the discovery of damaged or insufficient compression, replacement of new products.
6 Safety valve appearance inspection, including furnace safety valve and tank safety valve, all safety valve must require annual inspection.
7 Cooling circulating water pipe regularly check, no obstruction, spare water can be put into operation at any time.
8 When the equipment is not used for a long period of time, the equipment must be evacuated and placed.
9 Industrial computer hard disk mirror and recovery method
After the test is complete, the device creates a hard disk image and installs a key Ghost program for use when the client software fails (for example, infected with a computer virus), and the mirror production tool is Symantec Ghost.
Hard disk image contains content:
1. Operating system: Windows XP Service Pack 2
A) Intel Chipset INF
B) Intel 845 Video Driver
C) Realtek AC97 Sound Driver
D) Intel Pro100 Network Driver
3. Host computer configuration software: KingView 6.52
4. Host computer monitoring program: VTD-223
5. User-selectable software:
A) Adobe Reader 9
B) Office 2003 Service Pack 3
The user uses the industrial control computer, when the software failure occurs, uses symantec Ghost and completes the GHO image file restores the hard disk, can use normally.
One key Ghost recovery procedures to use
Use Symantec Ghost to consult Symantec or a software vendor.
Method 1: Run under WINDOWS (Windows XP; Windows Vista Universal)
Start -> program -> a key GHOST
According to different circumstances (C disk image exists) will automatically locate the different options:
Case 1: GHO is not present and is automatically positioned on the Backup option
Case 2: There is GHO, it is automatically positioned on the "Restore" option
Method 2: Boot menu run (Windows system common)
1. Windows Startup menu
2. GRUB4DOS menu
3. MS-DOS level menu
4. MS-DOS secondary menu
When a random installation of the Ghost program can not restore the system, use Symantec
Ghost and the GHO backup file recovery system generated at the factory, consult Symantec or the software vendor.
1. After the factory, GHO backup file users should be properly preserved (using other reliable way to save);
2. use the "one key Ghost" program, with caution "backup" function;
3. Users can download their own update "a key Ghost", the version should be higher than the factory with the version;
4. Symantec Ghost software users can obtain from the software dealer;
5. Users are not recommended to upgrade the operating system.
11. List of random documents
1 Factory quality inspection documents (including equipment certification): 1 piece
2 User manual (equipment use and maintenance manual): 2 pieces
3 Plane layout and foundation Figure: 2 pieces
4 Electrical control system schematic and wiring diagram: 2 pieces
5 SHIMADEN FP23 instrument Chinese manual: 2 pieces
6 Mass Flow Controller - User Manual : 3 pieces
7 Flow Display - User Manual: 3 pieces
8 Industrial control computer supporting CD: 2 pieces
9 Omron Inverter - User Manual: 1 piece
10 Digital composite vacuum gauge certificate and instructions: 1 piece
Dong jun vacuum brazing workshop
Person to contact: Cai Dongjun
Contact Phone: 13905275926
MSN / E-mail: firstname.lastname@example.org
Vacuum Brazing Web site: http://www.brazing.com.cn
The contact address of Singapore: 10 Anson Road #05-17
Contact: Feng Guo An
Telephone number: +65-6756 3629
Mobile: +0065-6756 3629
Fax: +0065-6754 8382