Shunt definition refers to the main road from the beginning to the end part of the gate after the premises, runner's role is to melt the plastic smooth and orderly introduction of each cavity. Figure 2-5 is a common outlet around the injection system big shunt. When there are multiple cavity mold, the runner will be divided into first and second runner runner. Flow cross-section in the form of channel-section runner common round and trapezoid. Where pp plastic materials, mainly for large circular section mold outlet, while the trapezoidal cross-section is mainly used for fine nozzle mold. Participation circular section runner: Figure 2-6 shows a circular cross-section flow channel, which is usually even-sectional dimensions, cross-sectional size can be determined according to the size of the pet products, plastic materials, products, the greater the required flows of molten The more plastic. In order to fill the cavity in a short time to ensure, a relatively large size can be used, if the article is small, a small cross-sectional dimension. Advantage of circular cross-section flow channel is the ratio of the area of ??the smallest surface area and cut, the molten plastic flows into the friction when the minimum, slow cooling, can reduce the loss of the melting temperature, maintaining of pressure balance, easy processing. Trapezoidal cross-section flow channel: for the mouth of the commonly used small water trapezoidal cross-section flow channel, the advantages of trapezoidal cross-section is easy to process, the disadvantage is melted plastic in the flow path will lose more heat. Parameter setting sprue and runner between the main channel in the front runner, the different sizes of different flow path between the two. Shows the relationship between the main channel and a large outlet diversion channel. As can be understood from the figure, the largest size 0, followed by ⑴, Bom, confused, runner diameter is generally 0.750, each runner was 0.75 times lower the higher the flow channel. Fine for common outlet flow channel parameters, can be seen on the relationship between the lower runner for 0.75 times. Pouring into the gate is the last link in the system, the gate is directly connected with the mold cavity plastic sheet material, size, form and position of the gate size required is determined according to the article shape, appearance and size. And be fixed - straight body panels mold has not difficult to find, in the eight sides of the plate and 0 board has a rectangular groove. Template called a recess in the mold industry code cavity, the role of the code is to mold cavity fixed on the plastic material in the injection molding machine, and workers do not have the code matrix cavity, the difference is working matrix is ??scheduled to die by moving seven fixed board and connected to the injection molding machine. Various mold applications commonly used in small and medium industrial matrix mold, mold generally do not use a large font work, because there is no fixed 丨 scheduled to die on the fixed plate size is larger, the injection molding machine is enough space for the installation. (It) has a straight body, no panel mold used 'large size mold, the mold cavity by injection molding machine code fixed code cavity machining and 0 in person board: the case of the board must be marked at the time of a custom mold code module slot position and size, we also need to mold manufacturing commercial code cavity machined plastic material pp | Gary trade (certified) | shatou plastic material provided by the Shenzhen Municipal Trade Co., Gary. Shenzhen Gary Ltd. (www.pft-trading.com) Guangdong Shenzhen, a leader in engineering plastics, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Gary leadership in trade with the staff warmly welcome all inquiries negotiations to create a better future for Gary trade.