tailieunhanh - Cơ sở thiết kế khuôn mẫu

Tài liệu tham khảo Cơ sở thiết kế khuôn mẫu bằng tiếng anh | s CoreTech System Mold Design Fundamentals 1 - Accomodation and Distribution of the Melt - Shaping of the Molded Part - Cooling Heating and Solidification of the Melt - Ejection Demolding of the Molding - Mechanical Functions Accomodation of forces Transmission of motion Guidance of the mold components CoreTech System The mold is probably the most important element of a molding machine. It is a arrangement in one assembly of one or a number of hollow cavity spaces built to the shape of the desired product with the purpose of producing large numbers of plastic parts. Thus the primary purpose of the injection mold is to determine the final shape of the molded part shaping function . In addition to give the final shape of the molding the mold performs several other tasks. It conducts the hot melt from the heating cylinder in the injection molding machine and distributes the melt to the cavity or cavities vents the entrapped air or gas cools the part until it is ejectable and ejects the part without leaving marks or causing damage. The secondary tasks of a mold derived from these primary tasks include several mechanical functions such as accommodation of forces transmission of motion guidance and alignment of the mold components. The mold design construction the craftsmanship largely determine the quality of the part and it manufacturing cost. 2 A Functional Systems of the Injection Molds s_ - Melt Delivery System Sprue Runner Gate - Cavity with Venting - Tempering Heat Exchange System - Ejection System - Guiding and Locating System - Machine Platen Mounts - Force Supplier - Motion Transmission System CoreTech System An injection mold is composed of several functional units. Each unit performs one or several task of .

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