How to Determine the Performance of Welding Overheating

Date：2023-08-11 14:24:00Views：315

The implementation of welding heat resistance technology requires materials to have high heat resistance, such as being not easy to soften, melt or deform at high temperatures, and also to have good welding performance, such as high welding joint strength, and being less prone to defects such as pores and cracks during the welding process. Commonly used welding heat resistant materials include high-temperature alloys, ceramic materials, graphite materials, etc.

Welding overheating refers to the excessive temperature in the welding area during the welding process, which leads to changes in the physical and chemical properties of the material, thereby affecting the welding quality and material performance. Therefore, correctly judging the performance of welding overheating is an important part of ensuring welding quality and equipment performance. The following will introduce several methods to determine the appearance of welding overheating.

1. Observe the shape of the weld seam

Welding overheating can cause changes in the shape of the weld seam, such as dents, cracks, deformation, and other phenomena. Therefore, by observing the morphology of the weld seam, it is possible to preliminarily determine whether the welding is overheating.

2. Measure the temperature of the welding area

The temperature of the welding area is one of the important indicators for judging welding overheating. The temperature of the welding area can be measured using tools such as infrared thermometers and thermocouples. Generally speaking, when the temperature of the welding area exceeds the melting point or deformation temperature of the material, welding overheating occurs.

3. Check the hardness of the welding area

Welding overheating can lead to a decrease in the hardness of the welding area, so tools such as hardness testers can be used to detect the hardness of the welding area to determine whether the welding is overheating.

4. Inspect the organizational structure of the welding area

Welding overheating can cause changes in the microstructure of materials, such as grain growth, disappearance of grain boundaries, and other phenomena. Therefore, the microstructure of the welding area can be observed using tools such as a metallographic microscope to determine whether the welding is overheating.

In summary, only by correctly judging the performance of welding overheating can timely measures be taken to ensure welding quality and equipment performance. Chuangxin Testing is a professional testing institution for electronic components. Currently, it mainly provides integrated circuit testing services such as capacitors, resistors, connectors, MCU, CPLD, FPGA, DSP, etc. Specializing in functional testing of electronic components, appearance testing of incoming electronic components, anatomical testing of electronic components, acetone testing, X-ray scanning testing of electronic components, and ROHS composition analysis testing. Welcome to call, we will be happy to serve you!