Solution: reduce the processing temperature, if it does not improve, adjust the formula to increase stability, appropriately increase stabilizers and lubricants, and change them one by one. First increase the stabilizer to see the effect, and then adjust the lubrication to balance the lubrication, so it is easy to find out quickly Where the problem lies, solve the problem as quickly as possible.
2021年7月29日星期四
Features of PVC-U pipe
1. Light weight, convenient handling and unloading: PVC pipe is light in material, convenient in handling, loading and unloading, and construction, saving labor.
2. Excellent chemical resistance: PVC pipes have excellent acid, alkali and corrosion resistance, which is very suitable for the chemical industry.
3. Small resistance: The inner wall of the PVC pipe is smooth, and the resistance is small, and its friction coefficient is only 0.009.
4. Good electrical insulation: PVC pipes have excellent electrical insulation properties and are suitable for protecting wires and cables.
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5. Simple construction: The combined construction of PVC pipes and pipe fittings is quick and quick, and the construction cost is low.
Features of PVC drainage pipe
1. The surface hardness and tensile strength of the pipe are excellent, and the safety factor of the pipe is high.
2. The linear expansion coefficient of the pipeline is small, 0.07mm/℃, and the amount of deformation affected by the temperature is small. The thermal conductivity and modulus of elasticity are small, and the anti-freezing performance is better than that of cast iron drain pipes.
3. The pipes and pipe fittings can be connected by bonding. The construction method is simple, the operation is convenient, and the installation work efficiency is high.
4. Good aging resistance, and the normal service life can reach more than 50 years.
5. The pipeline has excellent corrosion resistance to inorganic acids, alkalis, and salts, and is suitable for industrial sewage discharge and transportation.
6. The pipe friction coefficient is small, the water flow is smooth, not easy to be blocked, and the maintenance workload is small.
7. The material has high oxygen index and self-extinguishing.
| Plastic PVC Window Profile | PVC Extrusions | 胡小波 | 2021-07-30 13:39:20 | 2021-07-30 13:39:20 | 修改 | 详情 | 图片管理 | 添加相似 | ||||
| 2 | PVC Extrusion Profile Strips | PVC Extrusions | 胡小波 | 2021-07-30 11:34:24 | 2021-07-30 11:35:54 | 修改 | 详情 | 图片管理 | 添加相似 | |||
| 3 | Pvc Hollow Square Tube | PVC Extrusions | 胡小波 | 2021-07-30 09:36:03 | 2021-07-30 09:36:03 | 修改 | 详情 | 图片管理 | 添加相似 | |||
| 4 | Plastic Corner Protector | PVC Extrusions | 胡小波 | 2021-07-30 09:25:08 | 2021-07-30 09:25:08 | 修改 | 详情 | 图片管理 | 添加相似 | |||
| 5 | PVC Corner Protector |
2021年7月11日星期日
The mixing technology and feeding sequence of PVC low-foaming raw materials
The preparation of pvc low-foaming dry blend is carried out on a standard heating and cooling mixing unit (this unit is a combination of a high-speed mixer and a cooling mixing unit). The mixing principle of the high-speed mixer is that the materials are rapidly scattered along the container wall under the impetus of the high-speed rotating stirring blade, and fall from the center of the container to form a vortex motion to achieve the effect of rapid mixing and uniformity. During high-speed
PVC Extrusions stirring, when the materials are mixed, friction between the materials will be generated, that is, frictional heat will be generated at the same time. There will also be friction
http://upvcextrusion.com/ between the materials and the stirring blade and the container wall, and frictional heat will also be generated, as well as the heating source outside the container. Under the joint action, various
PC Extrusions additives can quickly infiltrate into the PVC resin and form a semi-gelled dry mixture. The principle of the cooling mixer is to pass cooling water through the outer jacket of the container, and under the low-speed stirring of the paddle, the dry mixture of about 110-120℃ is rapidly cooled to below 45℃ to prevent the hot material from agglomerating, decomposing and foaming. , The mixed dry blend discharged from the mixer should be sieved to remove agglomerates and molten particles for the next step of extruding and granulating, or directly extruding low-foaming products.
Six common senses of PVC foam board processing
The processing characteristics of pvc foam board are roughly the same as that of wood processing. It is only necessary to avoid scorching caused by excessively high working temperature. In addition, the chips generated after processing can be collected, recycled, and remanufactured to reduce costs. There is one thing to pay attention to when cutting the hollow foam board. Because the hollow space is 23mm, it is easy to assemble. If you don’t pay attention to cutting, most of them are overlapped and cut at one time, resulting in different spacing; you can use the tool It is positioned by the way of bolts, which is convenient for processing. Now we understand a little bit of common sense about the surface processing of PVC foam board.
The engraving machine can be used to shape according to the design drawing, and the surface is to be pasted with Minai board or baking varnish; but the hollow foam board should be noted that if the surface is uneven, only the vacuum overmolding method can be used and the material is 2 mm pvc board.
2. Bending molding is only suitable for solid foamed board, hollow foamed board is not applicable; the processing method is to use upper and lower molds, cover the surface of the wooden mold with aluminum plates and heat the solid foamed board to a plasticizing temperature of 70~90℃ In the meantime, the surface of the foamed board is extruded directly by the upper and lower molds without any change.
3. Self-adhesive PVC can provide wood grains with different patterns on the surface according to requirements during extrusion manufacturing, which can save unnecessary processing procedures.
4. The surface of PVC foam board can be painted, and the general category can be divided into general baking varnish, piano baking varnish, ceramic baking varnish according to the different processing methods; anti-UV ingredients will be added during piano baking varnish processing to avoid surface color changes; In terms of surface hardness, ceramic baking varnish has the advantage of anti-scratch.
5. Then there is the common processing method. The surface is pasted with crystal plate (usually single-sided colored acrylic plate), Minai plate and Minai paper. In the part of the edge banding, the general processing is mostly automatic edge banding machine. The automatic edge banding machine is divided into two types: roller type and crawler type. However, if hollow foaming is used, it is recommended to use a color similar to that of the surface coating material to avoid obvious color difference when the paper is pasted. .
6. Drilling can be beneficial to the crawler edge banding machine, which is less likely to cause unevenness on the surface after edge banding. The pressure adjustment is also very important; the color of the foam board is also directly processed by the NC machine. The material itself can reduce the density and increase the air content of the foam board according to the needs of the application, to achieve the effect of heat insulation and sound insulation and cost reduction. For example, the density of 15mm foam board reduces its own weight and the same volume of 10mm foam board. The weight is the same. At present, some manufacturers have used the foaming board to use vacuum forming for table top molding or large machine cover, but there is a disadvantage when applied to the table top molding, which is that the surface is not well resistant to mold and is easy to wear.
2021年7月9日星期五
What plastic is used for PC lampshades?
What kind of plastic is the PC lampshade made of? Before seeing the production process of the PC lampshade, we basically don’t know how the product is made, but even if we have seen the production process, it may not be Know what technology and materials are used to make it.
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So what kind of plastic is the PC lampshade made of? Generally, PC material is purchased and some dispersion powder is enough. The transparency of the PC lampshade manufactured with PC can reach more than 89%. At the same time, the PC lampshade also has better advantages, such as not fragile, resistant to yellowing and high temperature. This is why everyone chooses PC lampshades now.
PC lampshade can be manufactured with ABS, acrylic and other materials in addition to PC, mainly based on the requirements of customers.
2021年7月5日星期一
PVC foam board application range
1. Advertising industry-screen printing, engraving, advertising signs, exhibition boards, sign boards.
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2. Furniture industry—bathroom furniture, various high-end furniture boards.
3. Construction and decoration industry-building exterior wall panels, interior decoration panels, residential buildings, offices, public spaces, building partitions, commercial decorative frames, clean room panels, and ceiling panels.
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4. Transportation industry-ships, airplanes, passenger cars, train cars, roofs, box cores, interior decoration boards.
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5. Industrial applications-chemical industry anti-corrosion engineering, thermoformed parts, cold storage boards, special cold insulation engineering, and environmental protection boards.
6. Other uses-formwork, sports equipment, breeding materials, seaside moisture-proof facilities, water-resistant materials, art materials, various lightweight partitions.
PVC board used in cars
The pvc board is a honeycomb-shaped cross-section made of PVC as a raw material. With the forward development of the automobile industry, more and more plastics are applied to automobiles. With people's serial requirements for automobile safety, environmental protection, and energy saving, we urgently need comprehensive performance plastic materials and automobile plastic parts. It is also used more and more widely, and it has been developed from interior and exterior decorative parts to car body covering parts and structural parts. For example, the front face, bumper, engine hood, trunk lid, roof, fender, door inner guard and certain body frame components.
Why PVC foam board is suitable for home decoration
The main component of pvc board is polyvinyl chloride, and other components are added to enhance its heat resistance, toughness, ductility, etc. It is a kind of synthetic material that is well-loved, popular and widely used in the world today. Its global usage ranks second among various synthetic materials. According to statistics, in 1995 alone, the production of PVC in Europe was about 5 million tons, while its consumption was 5.3 million tons. In Germany, the production and consumption of PVC is an average of 1.4 million tons. PVC is being produced and applied worldwide at a growth rate of 4%.
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accounts for 6%-10% of the plastics used in the whole vehicle. PVC is mainly used for door trim, hoses, sealing strips, front and rear door trims, etc. in automobiles. For front and rear door trims, most cars generally use metal core materials and PVC profiles, that is, hollow profiles are extruded from PVC, and then metal core materials are inlaid in the middle to make decorative strips, and then bonded to the front and rear door outer panels of the car. In recent years, in order to further improve the application performance of PVC and expand its application range, PVC alloys have been studied at home and abroad.
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The above is the application of PVC panels in automobiles. PVC panels are more and more widely used in our lives with other characteristics.
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