Positioning mechanism utilizing steel exhaust ventilation, with all the parts are required to locate, the purpose is to locate the part fixed in the specified location, to prevent its movement, this section describes several mold positioning structure. Formwork fine positioning mechanism design, mold fine positioning means mold clamping process can move 7 set to the desired mode to pinpoint positions to avoid a collision between the two. Use the slope boss locators (in-mold tube bits), many mold factory bosses are working on the slope of a given model moving 丨 core and cavity, in order to take advantage of the boss for precise positioning, that shown in Fig. 2-69 Structure hands. Tips from the pipe-bit block tube position between the block and the template to be installed in Mozambique board pvc transparent soft around the middle of the plate, and positioning, guide balance. Rectangular pipe-bit block diagram above has two parts, but a lot of mold factory in order to reduce the cost of mold will preclude the use of a pipe-bit parts pvc, as shown in Figure 2-74. As it can be understood from the figure, scheduled to die in the tube positioning device is working directly on the template set out, thus saving a part. Ding polyethylene terephthalate, polybutylene terephthalate acid 曱 Ding is one of the toughest engineering thermoplastic material, which is semi-crystalline materials, has very good chemical stability, mechanical strength, electrical insulation properties and thermal stability. 8 of the hygroscopic properties of weak pvc flooring material shrinkage rate of 30 percent glass-containing additive material shrinkage rate. The material is readily hydrolyzed at a high temperature, to be dried before processing, air drying conditions recommended for 120.0,6? Pvc hose 8 hours, the relative humidity must be less than 0.039 ^, 150 recommended conditions. A melting temperature of a mold temperature of 401? 60.8 Ding low coefficient of friction and wear, wear only? 0 ^ 1 1/4. Commonly require lubrication and corrosion resistance of parts such as gears and bearings, switches, and food processing blade. Mixed plastic pvc flower boxes | Gary trade (certified) | Changsha pvc provided by the Shenzhen Municipal Trade Co., Gary. Gary Trade Co., Ltd. of Shenzhen City (www.pft-trading.com) is Shenzhen, a leader in engineering plastics for many years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Gary trade in leadership with the staff warmly welcome all inquiries negotiations to create a better future for Gary trade.