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2020-07-13
(1) Characteristics of chrome plating 1. Chrome plating uses oxo acid as the main salt, chromium and oxygen have strong affinity, electrolysis is difficult, and current efficiency is low; 2. Although the polarizatio
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2020-04-09
Brass is an alloy of copper and zinc. The simplest brass is a copper-zinc binary alloy, called simple brass or ordinary brass. Brass can be divided into two types of products: casting and pressure processing. By changing the content of zinc in brass, bras
2020-04-08
1. Between the coating and the base metal coating and the coating, there should be good adhesion; 2. The coating should be crystal fine, flat and even in thickness; 3. The coating shall have a specified thickness and as few pores as possible; 4. Coating
2020-04-06
According to the different types of alloy elements contained in brass, brass is divided into ordinary brass and special brass. Brass for pressure processing is called deformed brass. Ordinary brass It is an alloy composed of copper and zinc. In general, s
2020-03-21
According to the molecular structure and thermal characteristics of plastic synthetic resin, it can be divided into thermoplastic and thermosetting plastics. This classification method reflects the structure, physical properties, chemical properties and
2020-03-20
50% of the hard oxidized oxide film penetrates into the aluminum alloy and 50% adheres to the surface of the aluminum alloy. Therefore, the external size of the product becomes larger and the internal pores become smaller after hard oxidation. (I) Differe
2019-12-28
1. Different appearance colors 1) silver white in galvanized appearance. 2) the appearance of nickel plating is silver white and yellow. 3) chrome-plated decorative chrome and hard chrome bright white slant blue appearance. 2. Di
2019-12-20
Brief description of sandblasting process: Sandblasting process is using compressed air as the power, the high-speed beam will be sprayed iron sand, ceramic sand and other abrasive shot to the surface of the workpiece for treatment. Allow the workpiece s
2019-12-19
Zinc plating refers to the surface treatment technology of plating a layer of zinc on the surface of metal, alloy or other materials to play the role of beauty, rust prevention, etc. The main method is hot galvanizing. Zinc is easily soluble in acid and
2019-12-17
1) Safety operation rules that need to be checked before hardware processing. Before mechanical work, check whether the moving part is filled with lubricating oil, then start and check whether the clutch and brake are normal, and run the machine machine
