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2020
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How to choose high quality PVC fluid hose
Author:
The key element of PVC hose is polyvinyl chloride, which is bright in color, resistant to erosion, stable and durable. Due to the addition of plasticizers, anti-aging agents and other toxic auxiliary materials to strengthen its heat resistance, toughness, ductility, etc., its products are usually not stored in food and medicine.
How to identify the quality of PVC hose?
1, weather resistance. The most direct way is to take the PVC tube to a high-temperature and high-gloss place for a few days to watch the surface transformation rate. The smaller the surface transformation, the stronger the weather resistance of the PVC tube.
2, look at the raw materials. Analysis of PVC pipe raw material needs specialized knowledge and equipment, but some simple inference is also useful. Take two pipes with the same diameter, wall thickness and length to compare the components. PVC pipes with high components add too much calcium powder and impurities, and the raw materials are impure and cannot meet the requirements.
3, look at the degree of whiteness and color. If the PVC pipe in the production process of miscellaneous materials, recovery material to add too much, made of pipe will be black, yellow, affecting the quality of PVC pipe.
4. Watch the thickness. According to the pipe diameter rule, check whether the thickness of PVC pipe wall is average.
5. Take the sample and drop it. If the product quality requirements are high, you may as well beat the PVC pipe hard, check the toughness of the PVC pipe, the simple broken PVC pipe is usually a high calcium product.
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