There are points of knowledge about the purchase of environmental boxes

 

Environmental class test equipment is dedicated to various types of environmental temperature and humidity simulation and reproduction of the natural environment of the test chamber, can be freely controlled by automatic programming controller, adjustment to achieve different temperature and humidity conversion or greenhouse humidity maintenance function of the test equipment! Its name can be called environmental test chamber, environmental test apparatus, environmental simulation testing machine, etc., mainly used in electronics, military industry, metal manufacturing, communications equipment industry, testing the physical and chemical properties of its products!

 

Environmental experimental equipment based on its performance and application of different industries can be divided into the following categories.

 

Constant temperature and humidity class experimental equipment

 

Mainly used for temperature and humidity maintenance test, can freely set high temperature and high humidity, low temperature and high humidity, high temperature and low humidity, low humidity and other environmental change conditions, widely used in the electronics, communications equipment and other industries, product temperature and humidity resistance, humidity resistance performance!

High and low temperature alternating hot and humid test chamber

 

Suitable for automotive non-metallic materials, interior and exterior trim parts and electrical and electronic products performance and reliability testing, a wide range of temperature control, in the application of equipment, choose to meet the "basic environmental test procedures for electrical and electronic products" temperature and humidity can be controlled range, you can carry out electronic products or materials, such as high temperature, low temperature and alternating heat and humidity environment test.

 

High and low temperature alternating type test equipment

 

Mainly used for high temperature, low temperature performance test, can be set freely high temperature or -40 degrees Celsius low temperature and other environmental conditions, widely used in military enterprises, electrical communication industry, product resistance to high and low temperature performance test!

 

Cold and heat shock class experimental equipment

 

Mainly only for the product of the cold and hot shock performance test, can be set freely high and low temperature, in 5 minutes to achieve - 30 degrees Celsius to high temperature 80 degrees of the instant impact test performance, widely used in the automotive manufacturing industry, electronic communications equipment manufacturing industry, the product of cold and hot shock performance test!

 

Light and aging resistance test room

 

Light resistance and aging test is a fast and effective simulation environment test, which can partially replace the long natural environment exposure test and evaluate the aging resistance performance of materials and parts more quickly than the natural environment test. The artificial light source test equipment simulating sunlight is used to accelerate the aging of the tested parts, for example: the xenon lamp aging test chamber is selected, and the environment inside the chamber simulates sunlight to conduct light resistance and weathering test on the automobile interior and exterior materials, which can realize irradiance control and closed-loop automatic point control, and can test the light stability, color fastness and light resistance of the materials, and at the same time compare and evaluate the damage caused by the online full spectrum and rainwater. product design standard assessment.

 

UV aging

 

Adopting fluorescent UV lamp as the light source, it accelerates the weathering resistance test of automobile interior and exterior trim materials by simulating UV, rain, high temperature, high humidity, condensation and darkness and other environmental conditions. Ozone aging test chamber is used to study the law of ozone action on rubber. By simulating and strengthening the ozone conditions in the atmosphere, the performance of rubber against ozone aging can be quickly identified and evaluated. Cold and heat shock and temperature and humidity test.

 

For a variety of plastics, rubber and other non-metallic materials, body accessories and electrical and electronic products, high temperature, thermal aging test, the choice of high temperature and constant temperature test chamber, which belongs to the climate simulation box. Through the test can understand the high temperature resistance of automotive parts, such as the thermal aging performance of rubber and plastic parts on the car, body accessories and electronic products heat resistance, test the parameters and performance of automotive interior and exterior materials and electrical parts in the high temperature and constant temperature test after the temperature environment changes, is an important part of the quality control of automotive parts.

 

Seal performance test

 

For the waterproof performance test of the housing of lamps and wiring harnesses, a box-type rain test chamber is used to simulate the rain environment and test the waterproof performance of automotive lamps, wiper strips and low-voltage electrical housing.

 

Flame resistance test

 

For the horizontal combustion test of automobile seat fabric and interior plastic parts, the combustion tester for interior and exterior trim is used to test the flame retardant performance of the material under the direct combustion of the specified fire source. Test evaluation standards using GB8410 _ a 2006 burning characteristics of automotive interior materials phased Li.

 

Sand test

 

The dust test is used to test the dust resistance of the parts by simulating the natural wind and sand climate to test the destructiveness of the electrical parts of the car. You can refer to the size of the box, temperature control range, humidity requirements, dust concentration and differential pressure and other parameters, the choice of suitable sand and dust test box.

 

Salt spray (cycle) corrosion test

 

Test the corrosion resistance of metal and non-metal materials for automotive use, can be divided into neutral salt spray test, copper accelerated acetic acid salt spray test and cyclic corrosion test. Neutral salt spray test as a protective layer of steel to evaluate the corrosion resistance of the accelerated corrosion test method, has been commonly used to evaluate the corrosion resistance of automotive parts test method. Because it cannot simulate the dry condition in the natural environment and the state of alternating wet and dry, it cannot really simulate the corrosion condition in the natural outdoor condition, and the failure state of the actual automotive parts in the process of use is often different from the results of the neutral salt spray test.

 

Copper accelerated acetic acid salt spray test is used to evaluate the "copper + nickel + chromium" and other decorative plating accelerated corrosion test method. The cyclic corrosion test is closer to the outdoor natural state of corrosion, the assessment is more accurate, its main factors are corrosive media, spray, wet heat cycle and drying cycle, through different combinations and cycles, simulating the different corrosion processes of automotive parts in the atmospheric environment. Before the test on the automotive parts with coating need to be scribed and stone striking treatment.

 

The advantage of choosing salt spray (cycle) corrosion test chamber is that it can use repeated cycles to expose the sample parts to a series of different salt spray corrosion conditions to test the corrosion resistance of metal materials for automotive. Currently many of the world's advanced automotive manufacturing companies use the cyclic corrosion test method as an approved method for evaluating the corrosion resistance of automotive parts.