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Automatic rubber injection molding machine explains the difference between rubber mold and plastic mold

2021-06-29

Friends who don’t understand molds are easily confused by rubber molds and plastic molds. The feeling is similar. In fact, the difference between rubber and plastic is very big. There are different differences in raw materials, processing equipment, and molding. Rubber molds and plastics should be distinguished. There are several aspects to the mold. The first is that their raw materials are different, the equipment they use and the way they process them are different, and the molding method is different. Here is a detailed introduction to the difference between rubber molds and plastic molds. The following is an introduction from the editor of the injection manipulator manufacturer:


The difference between rubber molds and plastic molds is first of all the raw materials. This can be seen from their names. Most of the plastics refer to materials such as PE, PP, PVC, PC, etc., which we often come into contact with in our lives. Rubber generally refers to natural rubber and synthetic rubber, which is the essential difference between them.


The difference between a rubber mold and a plastic mold is not the same as the raw materials, the equipment used and the processing method are different. The rubber molds are generally hot and dry press molds. During processing, put the rubber strip into the cavity of the rubber mold. After the mold is closed, put the mold into the mold. In the hot press, heat, press and keep warm, take out the mold, open the mold to take out the product. The plastic mold is generally an injection mold. The molten plastic material is injected into the mold cavity. After the raw material is cooled and solidified in the mold cavity, the mold is opened to eject the finished product.


The difference between the molding methods, for the rubber mold, the rubber is vulcanized and shaped under the fixed containment and restriction of the mold cavity, so the shape of the product is completely consistent with the shape of the mold cavity. As long as the design reduction ratio is correct, a qualified molding can be obtained. Products. The cross-sectional shape of the mouth of the plastic mold is different from the cross-sectional shape of the rubber product obtained after injection molding, or even very different. The reason is that the vulcanization of the rubber extruded product is completed on the open microwave (or other vulcanization method) vulcanization production line , And the injection mold is formed by injecting plastic into the mold for cooling.


Kunshan Keshide Automation Machinery Co., Ltd. mainly produces rubber and plastic machinery automation and peripheral automation equipment. It is a high-tech rubber automation enterprise integrating product development, design, manufacturing, sales and service. The company’s products are widely used in a variety of industries, including: home appliances, computer and peripheral industries, optoelectronics, cosmetics, automotive, clocks and watches, precision gears, PET preforms, beach tables and chairs, audio-visual music, guiding Optical panel industry, communication electronics industry, mobile phone industry, medical supplies industry, pharmaceutical packaging industry, food packaging industry...etc. Provide high-quality, high-efficiency, and reasonable-priced automation products for the rubber machinery automation industry. Landline: 0512-36807318 Website: www.casend.net Welcome everyone to come to consult.