Product Details
ITEM NAME: PVC Elbow 90 Pipe Fitting Mould
MOULD STRUCTURE: Hydraulic cylinder
Diameter: DN160
About the Hongjin Mould:
Taizhou Huangyan Hong Jin mould Co., Ltd was established in 2007. We have been devoting to the pipe fitting Mould design and manufacture for more than 15 years, professional in pipe fitting mould designer and making.
Processing: Order 
→ drawing 
→ mold design → mould steel preparation → inspection → fly cutting mold frame → cnc mold frame → rough CNC machining of mold cavity → drill the water line → (quenching) → precise CNC machining of mold cavity → mechanical processing (mold parts processing and so on.) → inspection → assembly → inspection → mold test → inspection → polishing → (nitriding/electroplating) → mold test → inspection → delivery
Injection molding products appear black spots and stripes, how to deal with?
High melting temperature, too high melting temperature will cause the melt to overheat decomposition. When found the surface of plastic black spots and stripes, should immediately check the temperature of the barrel is out of control, and properly reduce the barrel and mold temperature. If the wear gap between the screw and the barrel is too large, the fusion material will be retained in the barrel, resulting in local overheating of the retained melt decomposition of black and stripes. In this regard, can first slightly reduce the temperature of the barrel, observe whether the failure is eliminated. If the injection speed is too fast, the injection pressure is too high, and the relative motion speed between the melt and the cavity wall is too high when the mold is filled, it is easy to produce friction overheating, which makes the melt and the cavity produce black and knowing lines. 4. The cylinder and die exhaust is bad, the residual gas in the melt due to adiabatic compression and combustion, so that the melt over-heat decomposition of black spots and stripes.
http://www.hongjinmould.com/
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