Sprue sets are usually made of high carbon tool steel. Injection mold sprue design elements are as follows: 1. To facilitate gating system condensate material pulled from the main road in and consider expansion of the plastic melt, sprue design into a cone. 2. The big end of the main channel was rounded with a radius take r = 1 ~ 3mm, in order to reduce the flow rate of the steering transition resistance. 3. ensure the plastic forming under good conditions, the length of the injection mold sprue should be as short as possible, otherwise it would increase the sprue slug, and increase the pressure loss, the plastic melt to cool excessive influence of injection molding. 4. molten plastic completely into the main channel without overflow, should be the main channel of the injection machine nozzle tight butt, butt joint is designed sprue hemispherical pits. Sprue parts are frequently designed to be disassembled sprue bushing to high quality steel processing and heat treatment alone, so the use of electric heating in the main channel of the material in order to raise the temperature. Our daily production, life used to a variety of tools and products, large machine base, body shell, as small as a germ-head screws, buttons and a variety of household appliances, housing, all have a close relationship with the mold. Shape of the mold determines the appearance of these products, processing quality and accuracy of the mold will determine the quality of these products. Because a variety of different products, materials, appearance, size and purpose of the mold into the casting mold, forging die, die, die stamping and other non-plastic mold and plastic mold. In recent years, with the rapid development of the plastics industry and general engineering plastics and continuously improve the strength and precision, the application range of plastic products is also expanding, such as: household appliances, instruments, construction equipment, automotive, fields and other daily-use hardware, plastic products, the rapid increase in the proportion of positive. A well-designed plastic parts often replace the more traditional metal. Plastic household products and the trend of industrial products rise. General definition of mold: in industrial production, with a variety of presses and special tools mounted on the press, by the pressure of the metallic or non-metallic materials the desired shape parts or products switching power supply screen, this special tool collectively, mold. Injection molding process Description: Mold is a tool for the production of plastic products. It consists of several groups of components parts, this combination successful mold cavity. Switching power supply plastic mold injection molding, the mold clamping on injection molding machine, molten plastic is injected into the mold cavity, and the cavity cooling setting switching power supply, then splits up and down through the top of the system, the article from the cavity top left mold, the mold is finally closed for the next injection, the whole cycle of the injection molding process. Switching Power Supply | integration into a plastic mold manufacturer | professional switching power supply formed by the integration of Shenzhen City Technology Limited. Switching Power Supply | integration into a plastic mold manufacturer | professional switching power supply integration into the molding is, Shenzhen Technology Co., Ltd. (www.rhctech.net) this year introduced a new upgrade, the above picture is for reference only, please call the contact or pictures on this page phone, for the latest information, contact: Ms. Ke.