Analysis Of Advantages Of Mold Injection Blow Molding 1. When the melt is injected into the cavity of the parison mold, it is subjected to a certain orientation effect in the circumferential direction. In addition, the temperature at which the parison is inflated is lower than that of the extrusion blow molding, and the orientation…
Performance Requirements For Aluminum Extrusion Dies 1. Hardness and red hardness (thermal stability) Hardness is an important indicator of the mold. The mold does not change rapidly in shape and size under the stress of the work. Red hardness means that the mold works under heat or high temperature, can maintain the stability of tissue…
How To Enhance The Surface Finish Of The Mold 1. The quality of tool steel Inhomogeneous hardness or differences in properties of the steel surface often cause polishing difficulties. Various inclusions and pores in the steel are not conducive to polishing. 2. Heat treatment process Heat treatment affects polishing performance in many ways. Surface hardened…
Effect Of Temperature Rise On Machine Tools Such As Milling Machines The temperature rise causes the temperature of each part to change with time, which causes the machine tool to lose the existing adjustment accuracy, thus affecting the size of the workpiece to be processed. At the same time, the temperature rise also changes the…
Problems In The Design Of Die-Casting Molds Due to the long production cycle, large investment, high manufacturing precision and high cost, the die-casting mold has harsh working conditions. When the die-casting is produced, the surface of the die-casting cavity is not only subjected to the high pressure and high-speed erosion of the molten metal, but…
Plastic Gear Mold Design Points Due to its light weight, low cost and low transmission noise, plastic gears are widely used in automobiles, instruments, household appliances, toys and various timing devices. They have replaced metal gears in many occasions and can be used for metal. Gears should not be used in many areas. At present,…
Factors Affecting The Plastic Shrinkage 1. Effect of molding process on shrinkage of plastic products (1) The molding temperature is constant, the injection pressure is increased, and the shrinkage rate is decreased; (2) keep the pressure increased and the shrinkage rate decreases; (3) The melt temperature is increased and the shrinkage rate is decreased; (4)…
Mold Material Selection Needs To Meet The 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…
Factors Affecting The Accuracy Of Mold Processing The quality of the machine depends on the processing quality of the part and the assembly quality of the machine. The machining quality of the part includes the machining accuracy and surface quality of the part. The machining precision refers to the actual geometric parameters (size, shape and…
Automotive Plastic Mold Classification There are many methods for classifying automotive plastic molds. According to the different methods of plastic parts molding, they can be divided into the following categories. 1.Injection mold The injection mold is also called an injection mold. The molding process of such a mold is characterized in that the plastic raw…