Dongguan Riteng Industry Co.,Limited

Therefore, when encountering severe shrinkage problems of thick and large pieces, it is necessary to adopt some unconventional injection molding techniques, otherwise it will be difficult to solve the problem. First of all, on the premise of ensuring that the  injection molding profile  is not deformed, the method of shortening the cooling time as much as possible is adopted to allow the injection molded parts to be ejected from the mold early at high temperatures. At this time, the temperature of the outer layer of the injection molded part is still very high, and the skin is not too hardened, so the temperature difference between the inside and the outside is relatively small, which is conducive to the overall shrinkage, thereby reducing the concentrated shrinkage inside the injection molded part. Because the overall shrinkage of the injection molded part is constant, the more the overall shrinkage is, the smaller the concentrated shrinkage is, and the degree of interna...

In the production process of  plastic extrusion pc cable pipe , extrusion is a link that has a very important impact on the final product form. In the process of communicating with many friends who make cable products, we found that there are actually many problems that you will often encounter. Today, the  custom plastic rods supplier  makes a brief summary for everyone, hoping to be beneficial to R & D engineers. Plastic Extrusion Pc Cable Pipe A phenomenon that produces (1) The plutonium generated during the plasticization of the resin has small crystal points and small particles on the surface of the plastic layer and is distributed around the surface of the plastic layer. (2) The scorch produced by scorch has scorch on the surface of the plastic layer, which is particularly reflected on the surface of the glued seam. (3) Impurities: There are impurities on the plastic surface, and there are impurities in the sliced contamination. (4) The plastic ra...

Sometimes the processed injection molded products will shrink and sag. What is going on? What are the causes of these situations?  plastic injection profiles supplier  to share with you: Machine side The nozzle hole is too large to cause the melt to reflow and shrink. If it is too small, the resistance is insufficient and the shrinkage occurs. Flashing will also cause shrinkage due to insufficient clamping force. Check the clamping system for problems. If the amount of plasticization is insufficient, a machine with a large amount of plasticization should be selected to check whether the screw and the barrel are worn. 2. Mould aspect Custom plastic injection  should make the wall thickness uniform and ensure consistent shrinkage. The cooling and heating system of the mold must ensure that the temperature of each part is consistent. The gating system must ensure unobstructed flow, and the resistance must not be too large. For example, the size of the m...

Plastic extrusion supplier  to share with you: Plastic corrugated PIPE  refers to a tubular elastic sensitive element connected by a foldable wrinkle sheet in the direction of folding and stretching. Bellows are widely used in instruments and meters, and their main use is as a measuring element for pressure measuring instruments, which converts pressure into displacement or force. The bellows has a thin wall and high sensitivity, and the measurement range is from tens of Pascals to tens of Megapascals. Its open end is fixed, the sealed end is in a free state, and the auxiliary coil spring or reed is used to increase elasticity. During work, it is extended along the length of the tube under the effect of internal pressure, so that the movable end has a displacement that has a certain relationship with the pressure. Moving the pointer on the movable end can directly indicate the amount of pressure. The bellows is often combined with a displacement sensor to form a pressure se...