Rubber mold and inner tube mold are designed according to the requirements of rubber mold products and manufactured by machining metal materials according to the requirements of drawings. According to the different structure and molding process, rubber mold can be generally divided into: flat pressing mold, rotary injection mold, and injection mold. Rubber mold is a kind of mold that processes rubber raw materials (solid or liquid) and produces rubber products under certain technological conditions, such as temperature, pressure, time, etc.
Rubber is a kind of high molecular compound, which can be divided into natural rubber and synthetic rubber. Its main performance is high elasticity. Common rubber: NBR, EPDM, FPM, silica gel, etc. Because different rubber has different properties and different requirements in production process, it is required to consider the type and processing technology of rubber when designing rubber mold In addition, the rubber mold must be finished by mechanical processing, which is also a factor to be considered in the cost of production products. Therefore, when designing rubber mold, it must meet the requirements of mechanical processing. At the same time, according to the factors of product quantity, under the condition of meeting the product requirements, the production cost should be minimized.
What should we pay attention to when we purchase rubber mould and rubber mould factory?
1. The appearance of rubber mold products shall not have many flash burr and knife pin trace. The influence of product appearance is the cause of steel mold injection. The poor opening of steel mold and the quality of rubber mold are not so good.
2. Don't pay too much attention to the weight. The rubber mold can compare the product wall thickness. After crushing, the crushed material still contains cement slurry powder. Under the same steel mold injection molding, the product is only heavy, not light.
3. Don't compare the price too much. Two 40 yuan molds are not as durable as one 50 Yuan mold. The size of the cement parts made is stable, but not inflated. There is no risk of unqualified products.
4. There are many black spots on the surface of the rubber mold made of crushed material, which is turbid and not bright, and has great deformation.