New development opportunities in the plastics industry: modified plastics

[Jiuzhi Plastics News] Modified plastics refer to the addition of suitable modifiers on the basis of general-purpose plastics and engineering plastics. They are processed by filling, blending and strengthening to obtain novel structural features and improve flame retardancy. Plastic products with properties in terms of properties, strength, impact resistance, toughness, etc. Modified plastics can be classified into flame retardant resins, reinforced and toughened resins, glass fiber reinforced thermoplastics, plastic alloys and PVC alloy products according to their functional classification. As an important part of the new chemical materials field, modified plastics have been included in the key scientific and technological fields.
With the substantial improvement of people's living standards and the advancement of technical means, domestic “to replace steel with plastic” and “to replace wood with plastic” will become a trend. Modified plastics are a plastics industry that covers a wide range of areas, has high technology content, and can create huge economic benefits. Modified plastics overcome the defects of poor heat resistance, low strength and toughness, and weak wear and impact resistance of ordinary plastics. At the same time, they also impart new characteristics such as flame retardant, weathering, antibacterial and antistatic, and these superior comprehensive properties. It has been used more and more widely in the downstream field, and has played a significant role in promoting the development of the plastics industry and new materials. Modified plastics have the advantages of high performance and low cost, and at the same time have national policy support, which is the need of consumption upgrade, and also has technical feasibility. Now its application range has been extended to many fields such as packaging, home appliances, auto accessories, electronic and electrical, power tools, toys, lighting and office equipment. It has broad development space and is the direction of the transformation and development of the traditional plastic products industry in the future.

The opposite side aperture of each grid of the US grid is generally 6.5cm-14cm. The thickness of the wire used is generally from 3.5mm-6mm. The wire material is generally Q235 low-carbon iron wire. The iron wire is welded into embossed black mesh. The overall dimensions of the mesh are generally 1.5 meters by 4 meters, 2 meters by 4 meters, and 2 meters by 3 meters.
General surface treatment is cold (electric) galvanizing. There are also hot-dip galvanizing, dipping, spraying. But overall, ninety-nine percent are cold (electric) galvanized. There are several points to note about the U.S. grid
1.Wire diameter
The smaller the mesh size of the JM grid, the finer the warp is required, and the larger the mesh, the thicker the warp is required. For example, a mesh diameter of 6.5cm requires an iron diameter of 3.5mm-4mm. It will break if it is thinned again, and it is too heavy for the workers to bear.
2.Dimensions
The overall size of the Rimage grid does not exceed 2 meters. The length is generally not more than 4m. More than 2 meters, one is laborious, and the other is poor galvanization. The length can also reach 6 meters, but it will not exceed 6 meters. Generally more than 4 meters after the price will increase significantly.
3. Whether the solder joint is firmly welded.
Mei grid welding joints are generally relatively strong, but if the worker is a novice and the technology of adjusting the machine is not high, the situation of welding joints will appear. Once this situation occurs, it will inevitably bring major losses to customers and factories.
4. Galvanizing process
Galvanization is also a problem-prone part of the Grid. Many workers are irresponsible. The boss is a little inattentive, and the worker is likely to shorten the galvanization time quickly, resulting in a situation where zinc is not available. As a result, factories and distributors can also suffer significant losses.
material:
High quality low carbon steel wire.

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