Basics mold parting surface structure rectangular tube Positioner, shown is a common sub-surface positioning device, commonly used in medium-sized mold, pipe-bit blocks and templates from the minimum side dish, the need to ensure adequate strength. Pipe-bit block can create their own or purchase standard parts, and its size can be selected according to the mold size and strength requirements. The mold cavity and core positioning. In addition to forming part of the mold parts need to locate outside, inserts and thimble, also need to be positioned. The most common way to insert positioned inserts positioned pvc pvp is a step in the bottom of the processing, the step is fixed by the template. Height of the steps taken, the small size of the insert can take smaller steps, higher strength require large inserts, relatively large height can take some specific dimensions as the case may be. Between the step and the template need to stay to avoid empty location, purpose is to facilitate disassembly. (It) is the length of the insert positioning steps designed to mold inserts pvc equal length, but may be changed according to the needs of its length. As shown in Figure 2-76, insert length dimension is 10, the positioning step length is 6. Pvc hf mixture of the two materials, and people have integrated nature of pvc 85, such as easy processing characteristics of eight and 85 of excellent mechanical properties and thermal stability, both of which will affect the rate? 0 5 cents thermal stability of the material. ? 0 eight 85 this hybrid material also shows excellent flow characteristics, it is widely used in mobile phones, automotive parts (instrument panels, interior and wheel covers], computer accessories, communication equipment and other household appliances. Shrinkage is taken as 0470? Fo 59 ^ shall be dried before injection, the relative humidity should be less than 0.049, it recommended drying conditions for 90.4 hours. material melting temperature of 230.0? 300. The mold temperature was 501? 10000. polycarbonate and polyethylene terephthalate a mixture of acid and polybutylene terephthalate having characteristics of both a comprehensive, high toughness and geometric stability, chemical stability, thermal stability and lubricating properties due to a combination of characteristics of the two materials commonly used in the gearbox Ding Bumper required to have chemical resistance and corrosion resistance, thermal stability, impact resistance and geometric stability of the product material shrinkage rate of 0.59 ^, the proposed selection for about four hours of drying, melting temperature to 235.0: 3001, a mold temperature of 37. pvc pvp | Gary trade (certified) | Hubei pvc provided by the Shenzhen Municipal Trade Co., Ltd. Shenzhen Gary Paffett Trade Co., Ltd. (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. In Gary's business leadership with the staff warm welcome to consult with negotiations to create a better future Paffett trade.