1. Analysis of the causes of cracking of injection molded products Cracking, including filament cracks on the surface of the part, microcracking, whitening, cracking, and damage due to the sticking of the part, the sticking of the flow path, or the t...

1. Analysis of the causes of cracking of injection molded products Cracking, including filamentous cracks, microcracks, whitening, cracking, and trauma crisis caused by the sticking of the workpiece and the runner sticking on the surface of the part,...

NPT is a general-purpose American standard tapered pipe thread with a profile angle of 60°. The PT thread is an inch taper thread with a tooth profile angle of 55°. The most commonly used inch pipe thread in sealing is a fine thread. Because the coa...

NPT is a general purpose American standard taper pipe thread with a tooth angle of 60°.The PT tooth is an inch taper thread with a tooth angle of 55°.Inch pipe threads are fine-toothed threads because of the large depth of the teeth of the coarse thr...

PPH tube is β-modified for ordinary PP material, so that it has a uniform and fine β crystal structure, and has excellent chemical resistance, abrasion resistance, high temperature resistance, corrosion resistance, aging resistance and good insulati...

The PPH tube is β-modified for ordinary PP material, so that it has a uniform and fine β crystal structure, and has excellent chemical corrosion resistance, wear resistance, high temperature resistance, corrosion resistance, anti-aging and good insu...

Corrosion has always been one of the more serious hazards of chemical equipment. If it is slightly inadvertent, it will damage the equipment and cause accidents and even disasters. According to relevant statistics, about 60% of the destruction of che...

High-temperature butterfly valves usually have electric butterfly valves and pneumatic butterfly valves. Generally, such valves have large calibers and are relatively expensive. These two types of valves have different faults and are handled differen...

Polypropylene (PP) is divided into homopolypropylene (PP-H), block (impact-resistant) copolymer polypropylene (PP-B) and random (random) copolymer polypropylene (PP-R).   1. Homopolypropylene (PP-H)v PP-H is homopolypropylene, which is what we call t...

Polypropylene (PP) is classified into homopolypropylene (PP-H), block (impact resistant) copolymer polypropylene (PP-B) and random (optional) copolymerized polypropylene (PP-R). 1. Homopolypropylene (PP-H)v PP-H is a homopolypropylene, which is what ...

Pneumatic angle seat valve, because it can maintain the flow rate, save space, sensitive response, long service life, large flow, small flow resistance, etc.; generally applicable to natural gas, oil, chemical, metallurgy, paper, electricity, mining ...

1. Weld marks (Commonly known as: clamped water pattern; other names: clamped line, clamped line, and glue line) definition In the injection molding process, when two streams meet, the interface is not completely fused and the traces are caused.   2....