Shell mold on the evaporator design
The structure of the evaporator shell size for the 1000 mn x 320 nm x 75 nm, wall thickness to 3. 0 mn, materials used Volkswagen TL 52231 standard ABS / PC. It is a multi-functional commercial vehicle air conditioning system a plastic parts, installed in the car at the top, and relying on the support on both sides of the fixed metal stents. This is an automotive exterior plastic parts pieces. Dermatoglyphics side has requested the appearance of beauty. Emergence of the region does not allow side dermatoglyphics scratch, bubbles, shrinkage and defects such as crazes. Plastic also called for the interference with high bending strength, impact toughness gap better, better heat distortion stability, higher cold resistance, high color fastness to sunlight resistance and better flame retardancy. The use of injection molding plastic parts production.
Plastic parts as a result of typing very large projected area, and particularly long, there are plastic parts on two very narrow (1.0mm) and high (23.0mm) of the function of tendons; also as a result of raw material is ABS / PC, and use of toughened , the mobility of the poor, such as the use of common flow channel system filled with difficult and prone to defects such as weld marks so that the production performance of plastic parts fail, and generate a large number of gating system is expected condensate. Is the structure of plastic parts, performance, functional requirements analysis to determine the use of hot runner mold system, six-point feed gate, the layout shown in Figure 2 to solve the above problems, as well as gating system does not produce forming machine condensate expected, reduces the cost of plastic parts.