Manufacture of copper shaft buttons
March 24, 2020
People's taste in life is getting higher and higher, and more attention is paid to details, especially for clothing. Nowadays, when designing clothes, fashion designers prefer to make copper buttons to make the clothes have a strong color contrast. Although the copper shaft button is small, it cannot be ignored, it has a finishing touch to the clothes. The following will introduce the copper shaft button processing technology.
Degreasing is the process of removing adhesive from copper shaft button forming parts. This process is usually done in several steps. Most of the binder is removed before sintering, and the rest can support the components into the sintering furnace.
Injection molding equipment and technology are similar to injection molding. The granular material is fed into a machine to be heated and injected into the mold cavity under high pressure. This step forms a release agent after cooling, and the entire process can be performed only by melting the binder at about 200 ° C and completely melting with the metal powder. The mold can be designed with multiple cavities to increase productivity. The design of the cavity size takes into account the shrinkage that occurs during the sintering process of the copper shaft button assembly.
The degreased copper shaft buttons are placed in a high temperature, high pressure controlled furnace. Copper shaft buttons are slowly heated under gas protection to remove residual adhesive. After the binder is completely removed, the part is heated to a very high temperature, and the voids between the particles disappear as the particles fuse. The direction of the copper shaft button is reduced to the design size and transformed into a dense solid.
Depending on the specific requirements of copper shaft buttons, some parts may require surface treatment after sintering. Heat treatment can improve the physical properties of metals. Plating and painting can be applied to high density materials.
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March 24, 2020
