Date：2023-08-11 14:24:00

Welding heat resistance test is a testing method used to evaluate the resistance and weldability of materials at high temperatures. This testing method can help engineers and designers determine the thermal stability and welding performance of materials to ensure that the product has sufficient durability and reliability in practical use. The purpose and precautions of welding heat resistance test will be introduced below. View >>

Date：2023-08-10 14:38:00

Welding is a common metal processing method, and different welding methods have different effects on the width of the heat affected zone in the welding area. The heat affected zone refers to the area where physical and chemical changes occur in the welding area due to the influence of heat. The following will introduce several common welding methods and their heat affected zone widths. View >>

Date：2023-08-10 14:38:00

Welding thermal cycle refers to the cycle of heat and cooling received by the welding area during the welding process. The main parameters of welding thermal cycle include welding temperature, welding time, cooling rate, etc. The main parameters and characteristics of welding thermal cycle will be introduced below. View >>

Date：2023-08-09 14:36:00

Electronic products are affected by various conditions during transportation, storage, and use, one of which is the cold and hot shock condition. These conditions may lead to performance degradation, damage, or failure of electronic products. Therefore, when producing, transporting, and using electronic products, it is necessary to pay attention to these conditions to ensure the quality and reliability of the product. View >>

Date：2023-08-09 14:20:00

The CMA certification quality inspection report is an important basis for product quality testing. It is issued by an inspection agency that has passed national metrology certification to prove whether the product meets relevant standards and quality requirements. The CMA certification quality inspection report plays an important role in product production and sales. The following will provide a detailed introduction to the meaning, processing process, and role of the CMA certification quality inspection report. View >>

Date：2023-08-08 17:30:00

Scanning Electron Microscope (SEM) is a high-resolution electron microscope that can be used for high-resolution imaging and chemical analysis of sample surfaces. The principle of SEM is to use the interaction between the electron beam and the sample surface to generate secondary or backscattered electron signals, which are detected and imaged through detectors. SEM has the advantages of high resolution, high sensitivity, high depth resolution, and chemical analysis, and is widely used in fields such as materials science, biology, geology, electronics, etc. View >>

Date：2023-08-08 17:05:00

Welding heat resistance and weldability are two important performance indicators of materials at high temperatures. Although both of these indicators are related to welding, their meanings and evaluation methods are different. This article will introduce the differences and evaluation methods between welding heat resistance and weldability. View >>

Date：2023-08-07 17:08:00

ROHS (Restriction of the Use of Certain Hazardous Substances) is an EU regulation aimed at limiting the use of hazardous substances in electronic products. The ROHS test report is a document that proves that electronic products comply with ROHS requirements. This article has collected and organized some materials, hoping to have significant reference value for readers. View >>

Date：2023-08-07 17:00:00

ROHS testing is a process of detecting harmful substances in electronic products. These harmful substances include chemical substances such as lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, and polybrominated diphenyl ethers. The ROHS Directive is a regulation aimed at limiting the use of harmful substances in electronic products to protect human health and the environment. The following will provide a detailed introduction to the detection objects and objectives of ROHS testing. View >>

Date：2023-08-04 15:37:00

SEM does not obtain the sample information by direct observation, but by emitting electron beam to excite the sample, and using backscatter or Secondary electrons detector to analyze the composition and morphology of the observed object. To obtain accurate results, the test sample must meet certain requirements. The following are the requirements for testing samples using scanning electron microscopy: View >>