Stamping parts are mechanical parts and are mostly used in automobiles, electrical appliances, motors, instruments, meters, etc.Because of the different environments in which they are used, high-precision application fields have sealing requirements for stamping parts, so manufacturers of such stamping parts will conduct sealing tests on their products.As a well-known developer and manufacturer of air tightness testers in the industry, Hirays Technology has achieved high-precision testing of stamped parts with its sealing testers. The following is a detailed explanation of our testing cases and solutions.
Hirays stamping parts sealing tester tooling
1. Stamping parts production and sealing process
Stamping is mainly classified according to process and can be divided into two categories: separation process and forming process.The surface and internal properties of stamping sheets have a great influence on the quality of stamped products. There will be convex and concave, burrs, twists, wrinkles, cracks, etc. However, stamping parts mainly use structural design for sealing. Once the above appearance problems occur, their sealing properties will be affected.
Products to be tested
2. Stamping parts sealing testing requirements
1. To achieve non-destructive testing, keep the product surface smooth, without deformation, scratches, etc.
2. The sealing test standard is to prevent the penetration of water, oil, corrosive gas, etc.
3. Hirays Technology stamping parts sealing testing solution
This detector of Hiraysi Technology uses compressed air as the detection medium. The pressure drop test method is used to detect the sealing. Selecting the gas with the smallest density for detection can also effectively prevent water and oil from penetrating the stamping parts.The internal space of this device is only (1.5cc), and it is equipped with an imported highly sensitive pressure sensor to achieve high-precision detection conditions.
Because the stamped parts do not have inflatable holes, a mold is required to wrap the product. In addition to fixing the product, it also protects the stamped parts from external interference during inspection and ensures the appearance of the product.Then quantitatively inflate the product surface through the mold. The system will strictly control the air pressure and maintain the air pressure within a certain range to avoid deformation of the stamped parts caused by excessive pressure.Then cut off the air source, use the pressure sensor in the internal instrument to monitor the pressure change after the product is inflated, and determine the tightness based on the air pressure change and leakage.The following is a detailed demonstration of the sealing testing of stamped parts.
4. Parameter display of Hirays Technology stamping parts sealing tester
At present, this stamping parts sealing tester has passed repeated performance and functional data tests and will be put into production testing of stamping parts soon.
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