In the cutting industry, regardless of the flame cutting or plasma cutting, the cutting width is affected by many factors such as the cutting nozzle. No matter how high the accuracy of the equipment itself, the accuracy of the parts cut by it is generally inaccurate. About ±0.5mm, the error is several orders of magnitude higher than the device itself. That is, it can only be done if millions of huge amounts of money are spent on imported CNC cutting machines. This is determined by the cutting process and method of the flame or plasma. In any case, it cannot obtain the same high standard of machining precision as other CNC equipment such as CNC lathes. In other words, whether the accuracy of the device itself is 6 or 8 is not very important. From the point of view of production efficiency, the speed of cutting is based on flame cutting, for example, depending on factors such as the thickness of the plate, nozzle type, oxygen purity, and gas quality. The moving speed of the equipment should meet and adapt to the requirements of the thermal cutting process. In other words, the cutting efficiency is not directly related to the equipment itself.
In general, the CNC cutting machine still embodies "relative high precision and high efficiency." This kind of "relative" is based on manual cutting and it is not a concept with the improvement of machining accuracy and efficiency.
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In terms of building materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foaming materials, sealing materials, and fibers, PVC was the world`s largest production of general-purpose plastics, and its applications are very widely. Widely used in all aspects
PVC is a white powder with an amorphous structure. The degree of branching is relatively small. The relative density is about 1.4. The glass transition temperature is 77~90°C. It begins to decompose at about 170°C. It has poor stability to light and heat. After prolonged exposure to sunlight, it will decompose to produce hydrogen chloride, and further automatically catalyze the decomposition, causing discoloration, and the physical and mechanical properties also rapidly decline. In actual applications, stabilizers must be added to improve the stability of heat and light.
The production process of PVC Resin SG8 and PVC RESIN SG5 is basically the same, and the production equipment is exactly the same. The main difference lies in the formulation of additives, polymerization temperature, reaction pressure and so on. The reaction temperature and reaction pressure of SG-8 resin have basically reached the working pressure limit of the polymerizer. The reaction requirements are relatively strict, and the requirements on operation, safety, technology, and personnel quality are more stringent, and the resin quality is more difficult to control.
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