The thermal shock test machine is an indispensable test equipment for the metal, plastic, rubber, electronics and other materials industries. It is used to test the degree to which a material structure or composite material can withstand in a transient environment of extremely high temperature and extremely low temperature. It is possible to detect chemical changes or physical damage caused by thermal expansion and contraction of the sample in the shortest time. Divided into two-box and three-box, the difference is that the test method and internal structure are different, the product meets the standard: GB/T2423.1-2008 test A, GB/T2423.2-2008 test B, GB-T10592-2008, GJB150 .3-198, GJB360A-96 Method 107 Requirements for temperature shock testing.
Term analysis
The thermal shock tester is divided into three-box and two-box according to the test requirements and test standards, the difference is that the test mode and internal structure are different:
Accessory function
Different temperature section impact: the multi-stage evaporator structure is cut off correspondingly, the evaporation area is controlled to match the cooling capacity expansion valve, and the output of the refrigeration system is used to reduce the output of the heater neutralization to achieve constant energy saving; and an independent gas exchange valve is provided. Introducing ambient air during exhaust (normal temperature recovery)
Air intake into the outside air when exposed to ambient temperature
The exhaust port discharges the hot air timing predetermined function from the machine room and the test area
The test start time is preset, the test box automatically starts and is ready to start the test.
Exposure time reduction function
The function of the downwind temperature in the test area to reach the next exposure after reaching the exposure temperature
Pre/post processing
The sample is exposed to a high temperature environment (heat treatment) for a certain period of time before or after the start of the cycle test.
Dry running function
Running under test conditions for a certain period of time
Auxiliary structure
Sealing: Double-layer high temperature and high tensile seal between the door and the box to ensure the sealing of the test area
Door handle: easy to operate with no reaction door handle
Sample rack movement mode: The sample holder moves up and down by means of a linear reciprocating drive system at the bottom of the installation box.
Casters: high quality fixed PU movable wheel on the bottom of the machine
The vertical body, hot and cold two boxes are used, and the method of the test area in which the basket is converted is used to achieve the purpose of the thermal shock test; this structure minimizes the heat load during the thermal shock and shortens the temperature recovery time. It is also the most reliable and energy-saving way of thermal shock
Product Usage
Thermal Shock Tester This product is suitable for the safety performance test of electronic components to provide reliability test, product screening test, etc. At the same time, through this equipment test, the reliability of the product and the quality control of the product can be improved. High and low temperature impact test chamber is an essential test equipment for aviation, automobile, home appliance, scientific research and other fields. It evaluates and determines the parameters and performance of electric, electronic, automotive electrical, materials and other products after temperature and environmental impact changes in high and low temperature tests. , the adaptability of use, suitable for schools, factories, military, research, and other units.
product manual
The thermal shock test machine is divided into three parts: high temperature zone, low temperature zone and test zone. The box of each zone adopts a unique heat insulation structure. The impact mode is applied to the air flow switching mode to introduce the temperature into the test area for the thermal shock test. When the temperature is high or low, the maximum time is 9999 minutes and the maximum cycle time is 9999 times. The system can be used for automatic cyclic shock or manual selective shock and can set the impact of two or three zones and cold flushing. Cooling and adopting binary refrigeration system, the cooling effect is fast, and the cooling method is air-cooled or water-cooled. Can be connected to a computer, the recorder is only an option. The color Chinese and English LCD touch control interface is used for easy operation.
fulfill the standard:
1. GB/T2423.1-1989 low temperature test method;
2. GB/T2423.2-1989 high temperature test method;
3. GB/T2423.22-1989 temperature change test;
4. GJB150.5-86 temperature impact test;
5, GJB360.7-87 temperature impact test;
6, GJB367.2-87 405 temperature impact test.
Applicable to aviation, military, ship, electrician, electronics, instrumentation; medical equipment; civil nuclear energy; colleges and universities; research institutes; commodity inspection and arbitration, technical supervision departments; building materials ceramics; petrochemical products, machinery and parts High and low temperature impact test. Three-slot type thermal shock test machine FR-1226 is a thermal shock test machine produced by Fari Instruments.
All functions are controlled by computer, which are self-developed software. It has a good operation interface, which makes the operation and monitoring of the user simpler and more intuitive. The hold function can keep the running program in the state, and can temporarily change the value of this block. You can set the time and parameters on the screen to switch between cooling, heating and blue transmission, and automatically according to the set value.
The cold box and the hot box are independently controlled, and the box doors are independent of each other, and the use range of the test box is expanded (one box and three uses).
The product insulation effect can be fully guaranteed.
The test box door is interlocked with the circulating fan and the blue drive to protect the operator's safety. Once the door is opened, the power of the circulating fan and the blue drive will be automatically cut off.
There is a standard lead hole tube at the top of the box, which is convenient for the user to introduce the sensor line into the box, and detect the type of lead wire.
Standards compliant
GB/T2423.1.2-2001 GJB150.5 GB10592-89
The main purpose
The thermal shock test machine simulates an instantaneous changing environment between high and low temperatures. Therefore, it is judged whether the parameters such as the reliability and stability of the product are qualified. It will provide you with the basis for predicting and improving the quality and reliability of your products. It is used to detect the resistance of electronic, automotive, rubber, plastic, aerospace technology, military technology and advanced communication equipment under repeated hot and cold changes.
Cooling System
1. Refrigeration system and compressor: In order to ensure the cooling rate and minimum temperature of the test box, the test chamber adopts a binary cascade Freon refrigeration system consisting of a German COPELANDBAN semi-hermetic compressor. The cascade system comprises a high pressure refrigeration cycle and a low pressure refrigeration cycle, the connecting vessel is an evaporative condenser, and the evaporating condenser functions to use the low pressure circulating evaporator as a high pressure circulating condenser.
The design of the refrigeration system uses energy-regulating technology, and an effective treatment method can ensure the effective adjustment of the energy consumption and cooling capacity of the refrigeration system under the normal operation of the refrigeration unit, so that the operating cost of the refrigeration system And the failure has dropped to a more economical state.
2. Refrigeration working principle: Both high and low refrigeration cycles adopt reverse card cycle, which consists of two isothermal processes and two adiabatic processes. The process is as follows: the refrigerant is compressed by the compressor to a higher pressure and consumes the work. The exhaust gas temperature is raised, and then the refrigerant is isothermally exchanged with the surrounding medium through the condenser to transfer heat to the surrounding medium. After the refrigerant is adiabatically expanded by the shut-off valve, the temperature of the refrigerant is lowered. This cycle is repeated to achieve the purpose of cooling.
3, refrigerant: the United States DUPONT company produces R404A (low pressure cycle), R23 (high pressure cycle) environmentally friendly refrigerant.
4, cooling method: air cooling.
5, refrigeration auxiliary parts: the main refrigeration accessories and control devices are imported originals.
Precautions
1. During operation, please do not open the door unless absolutely necessary, otherwise the following adverse consequences may result.
It is very dangerous to get hot air out of the box.
The inside of the door is still kept hot and burns.
High temperature air may trigger a fire alarm and cause a malfunction.
Thermal shock test machine
2. Please note that the unit must be safely grounded to avoid static induction.
3. Avoid turning the refrigeration unit off and on within three minutes.
4. If the sample is placed in the box, please use the external power supply for the sample power control. Do not use the unit directly.
5. No fuse switch (circuit breaker), temperature over-temperature protector, provide the test products of this machine and the operator's safety protection, so please check regularly.
6. It is absolutely forbidden to test explosive, flammable and highly corrosive substances.
7. Please read the manual carefully before operating the unit.
Safeguard
1. Safe and reliable grounding protection device
2, power supply undervoltage, phase loss protection
3, independent studio over temperature protection
4. Refrigerator overpressure, overload, oil pressure undervoltage protection;
5, heater short circuit, overload protection
maintenance
In order to ensure that mechanical equipment is always in good technical state, it can be put into operation at any time, reduce downtime, improve mechanical integrity, utilization, reduce mechanical wear, extend mechanical service life, reduce mechanical operation and maintenance costs, and ensure safe production. Strengthen the maintenance work of the thermal shock test equipment:
Maintenance must implement the principle of "maintenance and stress, prevention first", to achieve regular maintenance, mandatory, and correctly handle the relationship between use, maintenance and repair, not allowed to use only no maintenance, only repair;
Each team must do all kinds of mechanical maintenance work according to the mechanical maintenance procedures and maintenance categories, and must not delay without undue delay. In special circumstances, it may be postponed for maintenance after being approved by the special engineer, but generally it should not exceed half of the specified maintenance interval;
The thermal shock test machine maintenance machinery shall ensure the quality, and shall be carried out item by item according to the specified items and requirements, and shall not be leaked or not guaranteed. The problems found in maintenance items, maintenance quality and maintenance should be recorded and reported to the department for special work;
Maintenance personnel and maintenance departments should do "three inspections and one-off (self-inspection, mutual inspection, full-time inspection and one-time joint)", constantly sum up maintenance experience and improve maintenance quality.
Under the premise of maintenance, the thermal shock test machine shall be implemented and meet the following standards.
Beijing Heng Aode Instrument Co., Ltd. specializes in stainless steel water collector, tank bottom weld vacuum test box, reading instrument, eight-stage air microbial sampler, relay comprehensive tester, dual-wavelength scanner, coating thickness gauge, soil Crusher, tempered glass surface flatness tester, sound sensor, portable electric water level gauge, network mouth flow meter, corrosion rate meter, portable scratch tester, freezing point tester, water quality tester, online ammonia tester, coating Thickness gauge, coating thickness gauge, soil pulverizer, digital thermometer, gas sampling pump, ceramic impact tester, automatic crystallization point tester, drug freezing point tester, reed switch tester, constant temperature water bath , gasoline root transfer, gas sampling pump, tempered glass tester, water quality tester, PM2.5 tester, inhalable particulate matter detector, high frequency heat sealing machine, strain control triaxial instrument, milk somatic cell detector, helium gas concentration Detector, soil moisture conductivity tester, field strength meter, collection box, color ratio tester, capillary water absorption time measuring instrument, redox potentiometer vibrometer, Carbon oxide carbon dioxide detector, CO2 analyzer, oscillopolarograph, slime content tester, automotive starter power supply, automatic potentiometric titrator, portable thermometer, zirconia analyzer, reed switch tester, precision conductivity Instrument, TOC water quality analyzer, microcomputer plasticity measuring instrument, wind direction station, automatic spotting instrument, soil oxidation reduction potentiometer, digital thermometer, portable total phosphorus tester, corrosion rate meter, safety valve grinding tool, company adhering to " "Customer first, forge ahead" business philosophy, adhere to the "customer first" principle to provide quality services to our customers. Welcome patrons!
Inflatable Toy Animal,Inflatable Water Toy Sea Animal,Crocodile Design Inflatable Water Toy,Summer Inflatable Toy Shark For Kids
J&TZ CO.,LTD , https://www.inflatable-toy.com