PVC reinforced hose is also known as clear braided hose and reinforced PVC tubing. It’s a great and most used hose in our daily life. Such reinforced water hose can serve as garden hose. You can also use it to do some clean work like wash cars.
Besides civil use, it’s a common material for industry. In factory, it can transfer water, oil and gas. But if used in food industry, it have to absorbs food grade material. Then it can transfer milk, beer and beverage.
After the brief introduction, let’s talk about the tech. PVC reinforced hose is extrusion molding. Thus there are notes during the extrusion.
1. If extrusion mold with powder material, the temp of extrude machine should be 5℃ higher.
2. For the large size reinforced hose, blow compressed air into the hose when cooling. Because this can guarantee the accuracy and stability. Besides, the air pressure should be stable.
3. Focus on the traction speed. Because unstable pull will cause change on diameter and wall thickness.
4. You’d better clean up the machine if it doesn’t work for a long time. While this is to avoid the decomposition.
How to avoid PVC braided hose from color fading
Color fading is a common problem to PVC hose such as PVC garden hose and PVC fibre hose. Then how to avoid it? In fact, there is anti-aging test. General there are light, heat and wet aging. While the test needs a UV aging test machine. Then test it for 8 times. 12 hours including 8 hours UV and 4 hours water test is a period. After 144 hours’ test, the hose should not crack. Besides, it should be grade 4.
While the hose without such test will fade and crack after use for a period. Moreover, there will be oil on the surface. Thus the lifespan will be short.
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