Date：2022-01-26 13:30:00

Circuit breaker refers to the switching device that can switch, carry and disconnect the current under the normal circuit state and disconnect the current under the abnormal circuit within the specified time. It can also be used to distribute electric energy, start asynchronous motor infrequently and protect power lines and motors, When they have serious overload, short circuit, undervoltage and other faults, they can automatically cut off the circuit. Their function is equivalent to the combined equipment of fuse switch and over and under heating relay. They are generally composed of contact system, arc extinguishing system, operating mechanism, release, shell, etc. View >>

Date：2022-01-26 13:25:00

The test to measure, verify or improve the reliability of products is called reliability test. It is an important link of product reliability. The quality inspection refers to whether the characteristics of the product are consistent with the specified standards, mainly considering the compliance. The reliability test is generally phased, while the quality inspection is routine. View >>

Date：2022-01-25 16:32:00

Q: Classification of contact current a: for electronic products with different structures, the measurement of contact current also has different requirements, but in general, the contact current can be divided into ground leakage current, surface to line leakage current and surface to surface leakage current. View >>

Date：2022-01-25 16:00:00

Cold and hot shock test, also known as temperature shock test or high and low temperature shock test, is used to assess the adaptability of products to the rapid change of ambient temperature. It is an indispensable test in the identification test of equipment design finalization and routine test in batch production stage. In some cases, it can also be used for environmental stress screening test. It can be said that the frequency of application of cold and hot shock test box in verifying and improving the environmental adaptability of equipment is second only to vibration and high and low temperature test. View >>

Date：2022-01-25 15:00:00

With the development of the automobile industry, there are more and more electronic components such as body control electronics, entertainment multimedia electronics, navigation and on-board communication, which increase the complexity of vehicles, and the environment in which cars are used is particularly harsh, such as all kinds of climatic environment, increasingly polluted atmospheric environment, bumpy and complex road surface and all kinds of radio interference, Are testing the reliability of automotive electronic products. View >>

Date：2022-01-25 14:49:00

Capacitance is used to characterize the energy storage capacity of electronic components under a certain potential difference. When a medium is filled between conductors, the charge moves under the activation of an electric field. The medium limits movement, so charges accumulate and are stored in the drive. A capacitor is an element that stores electricity and electric energy (electric potential energy). Two conductors close to each other and sandwiched with a layer of non-conductive insulating medium constitute a capacitor. When a voltage is applied between the two plates of a capacitor, an electric charge is stored. Capacitors play an important role in tuning, bypass, coupling, filtering and other circuits. View >>

Date：2022-01-24 16:32:00

As we all know, ROHS certification is a certification to test whether product materials are environmentally friendly and toxic substances exceed the standard. At present, the new test items of ROHS certification have been updated to 10 items. Some customers will call metal RoHS 4 items RoHS 1.0 and non-metal 6 items RoHS 2.0. Therefore, after updating to 10 items, many customers will call RoHS 3.0 0. In fact, there is only RoHS 2.0 certification, because RoHS 1.0 is tested for 6 items, but metal is 4 items and non-metal is 6 items. Of course, now non-metal is tested for RoHS 10 items. It is hereby declared! View >>

Date：2022-01-24 16:30:13

Welding quality refers to the degree to which the welding products meet the design and technical requirements. Welding quality not only affects the service performance and service life of welding products, but also affects personal and property safety. In welding, due to the different thickness, structure and service conditions of weldment, its joint type and groove form are also different. The types of welded joints include butt joints, T-joints, corner joints and lap joints. View >>

Date：2022-01-24 14:00:00

RoHS is a mandatory standard formulated by EU legislation. Its full name is the directive on restricting the use of certain harmful components in electronic and electrical equipment. The ROHS certification standard has been officially implemented on July 1, 2006. It is mainly used to standardize the material and process standards of electronic and electrical products, so as to avoid harm to human health and protect the environment. View >>

Date：2022-01-24 13:30:00

ROHS certification is the English abbreviation of the restriction of the use of certain hazardous substances in electrical and electronic equipment. It stipulates that electrical and electronic products contain harmful heavy metals such as lead, cadmium, mercury, hexavalent chromium, polybrominated diphenyl ether and polybrominated biphenyls, The EU will ban imports from July 1, 2006. According to the product quality law of the people's Republic of China, the regulations of the people's Republic of China on certification and accreditation and the administrative measures for pollution control of electronic information products, the national certification View >>