Abstract: The current mold is the main process equipment for industrial production. The development of modern industrial products and the improvement of technical level depend to a large extent on the development level of the mold industry.
The current mold is the main process equipment for industrial production. The development of modern industrial products and the improvement of technical level depend to a large extent on the development level of the mold industry. Since the Second World War, the improvement of automation has led to the rapid development of foreign molds. Although China is a big mold producing country, it is not a mold manufacturing power. For the springs that match the mold, this detail is also the key to quality. Affect the performance of the entire mold.
The surface of the spring is identified by various lacquer layers, such as light and small load, which is represented by yellow lacquer; light load is indicated by blue lacquer; medium load is indicated by red lacquer; and extreme load is indicated by brown lacquer;
Performance analysis: a good paint layer to match the surface treatment of the spring, can be described as two-pronged, using color to identify various technical parameters, to facilitate industrial production operations, but also to ensure the corrosion resistance of the spring surface is better.
At present, the main manufacturers that successfully use the above methods are many foreign manufacturers, such as Japan's Dongfa Company.
In China, there are only a small number of manufacturers' effective visits. At present, there are some fixed technical requirements, such as the use of imported materials to reach foreign levels, but there is a clear gap in the overall surface treatment effect of the spring.
Domestically, artificial spray painting is used, and the appearance will be sag, leaking, and poorly combined, and the rust prevention ability is poor. The limitations of its own process have caused a large number of products to be stripped and reworked.
Electrophoresis paint is used in foreign countries. In the water-soluble paint tank, the workpiece is used as a cathode, and a certain voltage and time can be applied to form a uniform thickness paint layer on all surfaces of the spring, and then cleaned and dried. Its appearance is clean and bright, no particles, no bottoming phenomenon, good bonding force is not easy to fall off, hardness is good 3-4H, if the British LVH company polyurethane cathodic electrophoretic paint, its softness is quite good. The operating environment has no rich solvent smell, less air pollution, and the wastewater treatment discharge process is simple, as long as the resin of the PH sedimentation electrophoresis paint is adjusted, and then the water is discharged.
We design the process for a domestic manufacturer: forming spring → shot peening → → hanging tools → alkaline degreasing → double washing → (micro acid 1% neutralization) phosphating → double washing → double deionized water washing → cathode system polyurethane Color electrophoretic paint → recycling → double water washing → assisting washing → baking curing → lower hanging tools.
Uhpc Texture,Uhpc Concrete,Super High Strength Concrete,Ultra High Concrete
Wonsail New Materials Technology Co., Ltd , https://www.wonsailcn.com