Moulds (mú jù) are various molds and tools used in industrial production to obtain the required products by methods such as injection molding, blow molding, extrusion, die-casting or forging, smelting, and stamping. In short, a mold is a tool used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the article through the change of the physical state of the formed material. Known as the "Mother of Industry".
When selecting materials for the mold, the principle of the economy must be considered to reduce the manufacturing cost as much as possible. Therefore, under the premise of satisfying the performance, the first choice is the lower price, carbon steel can be used without alloy steel, and domestic materials can be used without imported materials.
In addition, the production and supply of the market should also be considered when selecting materials. The selected steel grades should be as few and concentrated as possible, and easy to buy.
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