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Molds (mú jù) are various molds and tools used in industrial production for methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping to obtain the desired products. In short, molds are tools used to create shaped items, and these tools are made up of various parts, with different molds consisting of different parts. It mainly achieves the processing of the item's shape through changes in the physical state of the molded material. It is known as the "mother of industry."
Molds (mú jù) are various molds and tools used in industrial production for methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping to obtain the desired products. In short, molds are tools used to create shaped items, and these tools are made up of various parts, with different molds consisting of different parts. It mainly achieves the processing of the item's shape through changes in the physical state of the molded material. It is known as the "mother of industry."
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When we are processing motorcycle parts mold shells, we often encounter some problems, one of the more common ones being cracking. It is well known that the main cause of cracking is due to stress deformation, which can be mainly divided into residual stress, external stress, and stress deformation caused by the external environment. Therefore, to solve the cracking problem that occurs during the processing of plastic mold shells, we must start by addressing the stress.
High-gloss molds have very strict requirements for product structure. It is well known that the shinier the product, the more sensitive it is to light refraction effects. Any slight surface defect will be quickly noticed. Therefore, how to solve the shrinkage problem is the primary issue for high-gloss products. According to experience statistics, the thickness of the ribs in general products should not exceed 0.6 times the thickness of the main glue position to avoid shrinkage, or in other words, the shrinkage is small and not easily detected, which can be ignored. However, for high-gloss products, such requirements are far from sufficient. The thickness of the product ribs must be reduced to no more than 0.4 times the thickness of the main glue position, and special treatment must be applied to the screw column positions.