1. Chemical analysis and gold phase test

The content of material analysis and chemical molecules determines the level of material particle size and uniformity. High -quality stainless steel hardware processing and decentralized non -metallic mixed objects, band structures and levels, check the material contraction rate, pore rate, and other defects.

2. Material inspection

The processing materials of hardware stamping parts are mainly hot or cold (mainly cold) sheet metal materials. The raw materials of hardware stamping parts should have quality assurance to ensure that the material meets the requirements of technical standards. In the absence of a quality certificate or other reasons, manufacturers of metal stamping parts can choose raw materials to be reviewed according to the requirements.

3. molding test

The bend test test is performed to determine the strain sclerosis index N and the plastic strain ratio R. In addition, the metal board forming test method should be performed in accordance with the prescribed metal board forming performance and experimental method.

4. hardness test

Lowl hardness meter is used to test the hardness of the hardware stamping parts. The precision hardware processing is customized on the standard Lowl hardness meter. Small and complex hardware stamping parts can be used to detect very small planes.

5. Other performance requirements

The determination of the adhesion between the material of the electromagnetic property and the coating and the coating.