Three Characteristics Of Mold Processing 1. High precision, the mold not only has high processing precision, but also has good processing quality. In general, the tolerance range should be controlled on the order of microns. Only high-precision molds can guarantee the product to achieve a certain degree of precision, and to ensure the product’s pass…
Specific Measures To Improve The Life Of Die-Casting Molds The cutting stress generated during the mold processing, the stress of the spark discharge metamorphic layer, and the thermal fatigue stress generated during the die casting can be alleviated or eliminated by annealing. The mold should be periodically annealed to eliminate stress: the first stress relief…
Five Major Defects In Mold Casting 1.Casting shrinkage hole The main reason is that the alloy solidification shrinkage produces casting shrinkage cavities and the alloy absorbs a large amount of oxygen, nitrogen, etc. in the air. When the alloy solidifies, gas is released to cause casting shrinkage. The solution (1) Place the gold ball. (2)…
Matters Needing Attention When Using Die-Casting Mold Materials The mold material should have good machinability and easy finishing; it has high heat treatment hardenability, which makes the internal and surface microstructure and properties after quenching uniform, and the dimensional deformation is small; durable high temperature plasticity and thermal fatigue resistance, The mold will not be…
Temper Brittleness Of Steel 1. Temper brittleness refers to the phenomenon that the toughness of the quenched steel decreases after tempering. When the quenched steel is tempered, the hardness decreases and the toughness increases as the tempering temperature increases. However, in the relationship between tempering temperature and impact toughness of many steels, two valleys appear,…
Mold Meets Process Performance Requirements Mold manufacturing generally involves several processes such as forging, cutting, and heat treatment. In order to ensure the quality of the mold and reduce the production cost, the material should have good forgeability, machinability, hardenability, hardenability and grindability; it should also have small oxidation, decarburization sensitivity and quenching. Deformation cracking…
How Is The Life Of The Mold And The Structure Related? In the actual application, the factory often determines that the mold has failed when the cost of re-maintenance reaches about 1/3-1/2 of the re-production cost, and then the repair is often not worth the loss. The failure of the mold is divided into abnormal…
ABS Plastic Injection Molding Process Knowledge 1. Drying of ABS plastic ABS plastic has high hygroscopicity and sensitivity to moisture. It can be fully dried and preheated before processing. It can not only eliminate the fireworks-like bubble and silver wire on the surface of the workpiece caused by water vapor, but also help plastic plastic.…
General Process Of Mold Processing The process of mold processing is relatively complicated, generally including mold blank preparation → part roughing → semi-finishing → heat treatment → finishing → cavity surface treatment → mold assembly → machine debugging. In the blank preparation stage, the corresponding blanks are provided for the mold parts, and the processing…
What Specifications Should Be Followed For Mold Design? 1. Material selection The greenness of the mold material has a very important impact on the green performance of the final product. The choice of materials for green design must be based on green materials, abandoning the chemical methods used to surface the materials in the past,…