Mould Manufacturing Finishing Process – Parts Heat Treatment There are three main types of machine tools used in grinding: surface grinders, internal and external cylindrical grinders, and tool grinders. The grinding deformation and grinding cracks must be strictly controlled during finishing grinding. Even very small cracks will be revealed during subsequent processing. Therefore, the feed…
Important Steps For Overhaul Of Mold Parts The annual maintenance program required for each injection molding location of the mold depends on the different mold cycle times. The following are some mold parts maintenance tips that can be used by each mold user to ensure the effective operation of hot runners, heaters, guide posts and…
Extruder Scorch Analysis First, the phenomenon of scorching is as follows. (1) The temperature reflects ultra-high, or the temperature of the control of the instrument fails, causing the plastic ultra-high temperature and scorch. (2) The rubber exit of the nose has large smoke, strong irritating odors, and buzz. (3) Particulate scorch appears on the plastic…
Mold Cooling In the continuous production process of the mold, due to prolonged contact with the blank with higher temperature than itself, the temperature of the convex and concave molds continuously increases, and the strength and hardness decrease sharply, thereby affecting the life of the mold. At the same time, under the high extrusion stress,…
Unstable Size Of Modified Plastic Injection Molded Products—Material Factors The shrinkage of the molding material has a great influence on the dimensional accuracy of the plastic parts. If the precision of the molding equipment and the mold is high, but the shrinkage of the molding material is large, it is difficult to ensure the dimensional…
Instable Dimensions Of Modified Plastic Injection Products— Mold Failure The structural design and manufacturing accuracy of the mold directly affect the dimensional accuracy of the plastic parts. If the rigidity of the mold is insufficient or the molding pressure in the mold cavity is too high during the molding process, deformation of the mold may…
Die Casting Alloy And Die Steel Affinity The greater the affinity of the die-cast alloy and the die steel, the easier it is to fuse and bond together. After the die-casting alloy is adhered to the wall, a large release resistance will be generated, and the casting will be pulled when it is released. Visual…
Solution To Deformation Problem Of Planar Injection Parts It is indeed a difficult problem to completely solve the problem of deformation of large-area injection molded parts. In production, we have summarized some of the more effective measures to improve the problem of deformation: 1. The mold is changed into multi-point water (usually three-plate molds), and…
Solution Techniques To Deformation Problem Of Planar Injection Parts If you do not achieve the desired results, you can only take the form of a model. Because most people do not use well, they need some skill. First of all, to advance the injection molded parts, and then take it is still in a state…
Preheating Of The Mold In addition to heat and lubrication of the billet prior to warm extrusion, the extrusion punch and die must be preheated. Generally preheated to 150 ~ 300 °C and then extrusion production. Mold preheating is mainly to ensure: 1. When the extrusion blank is placed into the mold, the temperature of…