What are plastic wiring equipment and what products do they mean?
PVC tile is made of hard polyvinyl chloride (UPVC) as the main materials are heat stabilizers, lubricants, fillers and light shielding agent, ultraviolet absorbent, foaming agent, mixing, plasticizing and the three layer co extrusion molding but the three layer core layer foam without coloring the milky white translucent, waxy; touch the products smooth feeling, soft and tough; slightly elongated. Generally low density polyethylene is soft and transparent; HDPE is hard. Common products: handbags, water pipes, drums, beverage bottles (calcium bottles), daily necessities and so on. Not colored, white, translucent, waxy, lighter than polyethylene. Transparency is also better than polyethylene, more rigid than polyethylene. Common products: pots, buckets, furniture, film, woven bags, caps, bumpers, etc.. Transparent when not painted.
. 1. Rubber injection molding: rubber injection molding is a method of injecting rubber directly from the barrel into a model. The advantages are: rubber injection molding is intermittent operation, but the molding cycle is short, high production efficiency cancelled blank preparation process, low labor intensity, excellent product quality. 2, plastic injection: plastic injection molding is a plastic products, the molten plastic will use pressure injection into the plastic mold, cooling molding, want to get all kinds of plastic parts. A mechanical injection molding machine is specially designed for injection molding. The most commonly used plastic at present is polystyrene. 3, high impact, high heat resistance, flame retardant, enhanced, transparent and so on. 4, liquidity is a little worse than HIPS, better than PMMA, PC and so on, good flexibility. Using polystyrene standard, THF (tetrahydrofuran) as mobile phase (note that your column should be used for THF), differential refractive index detector, universal calibration method was used to determine the molecular weight of PVC and its distribution. Most literature gives K and alpha values of polymers at 25 degrees C, and there is no reliable K and alpha values for polystyrene and polyvinyl chloride at 28 C in the present literature. If you do not have to determine the molecular weight of PVC at 28 DEG C, can be determined by 25 degrees, while the PS and PVC K, a as follows: PS:K = 0.016, a = 0.706, PCV:K = 0.0163, a = 0.766<br> (PVC tile UPVC lightweight roofing tile) is a kind of new roofing materials.
[injection molding] is a method of industrial product modeling. Products are typically molded by rubber injection and plastic injection. Injection molding can also be divided into injection molding, die casting and die casting. Injection molding machine (referred to as the injection molding machine or injection molding machine) is plastics molding equipment of thermoplastic or thermosetting material using plastic mold made of various shapes, injection molding by injection molding machine and mold.
