Rubber Processing Molding

The checking points for mold flash part Apr 12, 2019
It's very common to see some flashes on the part during mold testing. Today we are going to discuss some check points when we get flashed parts. 1. Mold fitting 2. Parting Line (PL) problem (1) Check if the surface of the core is higher than the surface of the AB plate (about 0.5MM) (2) Check the flatness of the surface to see if it is deformed because the mold plate is too thin. (3) Is there any ...
- plastic mold fitting
- mold plate
- molding machine tonnage
The advantages for Hot Runner Mold Apr 22, 2019
The hot runner mold refers to a mold that uses a heating device to keep the melt in the flow passage from solidifying at all times. Because it is shorter than the traditional mold shot cycle and saves raw materials, hot runner molds are widely used in various industrialized countries and regions in the world today. Shorten cycle The molding cycle is shortened. Because there is no restriction on th...
- hot runner mold
- plastic molding
- cold runner mold
Injection Mold Cooling Water Leakage Failure and Troubleshooting Apr 22, 2019
Injection mold cooling water leakage is a frequent occurrence, for many reasons, mainly in the following aspects: 1. The most occurs at the joint of the mold cooling water pipe. If water leakage is found, the sealing tape should be wound around the thread of the pipe joint and then tightened. 2. Due to long-term molding conditions, the waterproof ring inside the mold will be damaged, and the O-sha...
Preparations Before Mold Trial Apr 26, 2019
Mold trial is an essential part of the new mold before injection production, The quality of the test results will directly affect whether the subsequent production of the factory is smooth. What precautions should be paid attention to when test the mold? 1. Familar with the relevant information of the mold It is better to get the mold drawing, analyze it in detail, and get the mold technician to p...
- mold accessories
- plastic mold trial
- injection molding machine
The program control of injection speed Apr 26, 2019
The program control of the injection speed is to divide the injection stroke of the screw into 3 to 4 stages, and each of the stages uses an appropriate injection speed. For example, when the molten plastic just starts to pass through the gate, the injection speed is slowed down, and during the filling process, high-speed injection is used, and the speed is slowed down at the end of filling. With ...
Four stages in the injection molding process May 20, 2019
Under the action of the screw thrust, the melted material has flowed through the barrel, nozzle, runner, gate, etc. at a certain rate and then injected into the cavity, and the injection pressure is gradually decreased by overcoming the flow resistance. Plastic filling process and molding quality. In addition to the injection pressure, it depends on the melt injection speed, melt and mold temperat...
- mold Filling
- injection molding machine
- plastic mold Filling
How to choose the mold steel for mirror polishing? May 20, 2019
To make high quality mirror polishing on mold (cavity and core inserts, same as below), the requirement of mold surface polishing of mold is high, because this is the most important loop of mold manufacturing. The surface with roughness and corrugated grain is an abnormal phenomena in mirror polishing of molds. Generally, it is the the mold steel material, the polishing method, or the inject...
- mobile phone molds manufacturing
- injection molding
- electronic moulds
Purpose of mold polishing May 24, 2019
Polishing is an important process in the plastic mold making process. With the increasing application of plastic products, the appearance quality of plastic products is getting higher and higher, so the surface polishing quality of plastic mold cavities should be improved accordingly. Molds with specular and high-gloss surfaces have higher requirements on the surface roughness of the mold and ther...
- plastic products
- subsequent injection molding
- plastic mold polishing

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