Application analysis of new technology for mold spring surface treatment:
Existing molds are the main process equipment for industrial production. The development of modern industrial products and the improvement of technical levels largely depend on the development level of the mold industry. Since the Second World War, the increase in automation has led to the rapid development of foreign molds Although China is a big country in mold production, it is not a strong country in mold manufacturing. For springs that match the mold, this detail is also the key to achieving quality. It affects the performance of the entire mold. Industrial springs
Performance analysis: A good paint layer to match the surface treatment of the spring can be described as killing two birds with one stone. The color is used to identify various technical parameters, which is convenient for industrial production operations, and the anti-corrosion performance of the spring surface can be better guaranteed.
The surface of the spring is identified by various paint layers. For example, light and small loads are represented by yellow paint; light loads are represented by blue paint; medium loads are represented by red paint; extremely heavy loads are represented by brown paint;
At present, the main manufacturers that successfully use the above methods are many foreign manufacturers, such as Japan Tohatsu Corporation.
Electrophoretic paint is used in foreign countries. In a water-soluble paint tank, the workpiece is used as a cathode, and a certain voltage and time are applied to form a uniform thickness of paint on all surfaces of the spring, and then it can be cleaned and dried. Clean and bright, no particles, no bottoming phenomenon, good binding force, not easy to fall off, good hardness of 3-4H, if the British LVH company polyurethane cathodic electrophoretic paint is used, its flexibility is quite good. The operating environment has no strong solvent smell, and the air There is little pollution, and the wastewater treatment and discharge process is simple, as long as the resin of the PH sedimentation electrophoretic paint is adjusted, and then the clear water is discharged.
In China, only a small number of manufacturers have effectively visited. At present, it is mainly due to some fixed technical requirements, such as the use of imported materials to reach foreign levels, but there is an obvious gap in the surface treatment effect of the entire spring.
Generally, manual painting is used in China, and the appearance will appear sagging, leaking, poor combination, and poor rust resistance. The limitations of its own process cause a large number of products to be stripped and reworked.