What is the most important factor determining mold life?
Published time:
2021-11-12
Blow molding molds, as key components in plastic bottle forming, have always held a very important position in the packaging market.
Blow molding molds, as key components in plastic bottle forming, have always held a very important position in the packaging market. Developing a blow molding mold for a new and attractive bottle shape typically requires high costs. Choosing a high-quality mold manufacturer to produce high-quality molds will save you considerable money. In particular, the longer the service life of the blow molding mold, the higher its cost-effectiveness. The most important factor determining mold life is often the wear resistance of the mold material. The mold must withstand considerable compressive stress and friction during operation, requiring it to maintain dimensional accuracy even under strong friction. Mold wear mainly includes three types: mechanical wear, oxidative wear, and melt wear. To improve the wear resistance of mold steel, it is necessary to maintain high hardness while ensuring the reasonable composition, shape, and distribution of carbides or other hardening phases in the steel. For molds that serve under heavy load and high-speed wear conditions, it is required that a thin, dense, and well-adherent oxide film be formed on the surface of the mold steel to maintain lubrication, reduce melt wear such as sticking and welding between the mold and the workpiece, and also reduce oxidative wear caused by oxidation of the mold surface. Therefore, the working conditions of the mold have a significant impact on the wear of the steel.
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