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PVC is short for (Polyvinylchlorid), the main component is PVC, adding other components to enhance its heat resistance, toughness, ductility of a material. The top layer of this surface mask is the paint, the main component in the middle is PVC, and the bottom layer is the back-coated adhesive. It is a popular, popular and widely used synthetic material in the world today. It is the second largest global user among various synthetic materials. In 1995 alone, PVC produced about 5 million tons in Europe, while its consumption was 5.3 million tons. In Germany, PVC production and consumption are average at 1.4 million tons.
Basic overview: PVC Pipe Fitting (divided into PVC-U tube, PVC-M tube and PVC-O tube) hard PVC Pipe Fitting, is by PVC resin and stabilizer, lubricant, after thermal pressure extrusion molding, is the first development and application of Plastic Pipe Fitting.
The PVC-U tubes have strong corrosion resistance, easy bonding, low price and hard texture, but they are only suitable in the water supply system whose delivery temperature does not exceed 45℃ due to the PVC-U monomer and additive leakage. Plastic Fitting is used for drainage, wastewater, chemicals, heating and coolant, food, ultrpure liquids, mud, gases, compressed air and vacuum systems applications.
PVC-O tube is the latest evolutionary form of PVC tube. Through the pipe manufactured by special orientation processing process, the PVC-U tube produced by extrusion method is used for axial stretching and radial stretching, so that the PVC long chain molecules in the tube are arranged in biaxial order, to obtain the new PVC tube with high strength, high toughness, high impulse resistance and fatigue resistance.
Classification situation: PVC s can be divided into soft PVC s and hard PVC s. Hard PVC accounts for about 2 / 3 of the market, and soft PVC accounts for 1 / 3. Soft PVC is generally used in the floor, ceiling, and leather surface, but because the soft PVC contains plasticizer (which is also the difference between soft PVC and hard PVC), poor physical performance (such as the upper pipe needs to bear a certain water pressure, soft PVC is not suitable for use), so its use range is limited. Hard PVC does not contain plasticizer, so it is easy to shape, with good physical performance, so it has great development and application value. In the production process of PVC material, it is bound to add several additives, such as stabilizer, plasticizer and so on, if all the use of environmental protection additives, the PVC Pipe For Water and PVC Pipe For Irrigation are also non-toxic, tasteless and environmental protection products.
Additional information: PVC is being produced and applied worldwide at a 4% rate. PVC growth in Southeast Asia is particularly significant, thanks to the urgent need for infrastructure construction in southeast Asian countries. In materials that can produce 3 D surface masks.
Process conditions: drying treatment: usually does not required.
Melt temperature: 185~205C. Mold temperature: 20~50C.
Injection pressure: up to 1500bar， pressure pressure: up to 1000bar， injection speed: to avoid material degradation, a considerable injection speed is generally used.
Flow and gates: All conventional gates can be used. If smaller parts are processed, it is best to use tip outlets or dive gates; fan for thicker parts. The minimum diameter of the needle tip gates or dive gates shall be 1mm; the thickness of the fan gates shall not be less than 1mm.
Typical uses: water supply pipeline, household pipeline, house wall board, commercial machine housing, electronic product packaging, medical equipment, food packaging, etc.
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August 01, 2022
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