Image that in a hot summer, you walk by a river eating ice cream, suddenly a terrible smell comes. How sicking it is. The terrible smell may come from PVC hose. Why PVC hose sends forth terrible smell PVC raw material PVC is a high molecular material and the chemical formula is -(CH2-CHCl)n-. We can…
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Bluing is a common problem in rubber products like rubber hose and rubber sheet. The bluing will not affect the capacity of use, but it’s a serious problem for high appearance requirement products like toy and shoes. Worse more, it will cause rejection and return. Then what cause bluing in rubber products? As an…
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What is railroad sleeper rubber sheet Railroad sleeper rubber sheet is in the steel rail and concrete sleeper. The main function is to buffer the high speed vibrate and impact caused by passing trains, to maintain the roadbed and to keep the signal system insulation. The railroad sleeper rubber sheet exposes to natural environment for…
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You may find there is static when mixing rubber. It’s a common thing because static is exist in every places and no matter what the season is. Static may cause serious fire and threat to production safety. It may hurt human as well. What causes static? Normally we think the friction between rubber material…
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Aging is one of the most important reasons that cause rubber hose performance reduce. Because of different production formulation and working conditions, the speed of aging is different. So we need an aging test to evaluate the effect that aging degree brings to performance. The aging test is to check the performance changes in the…
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In the previous article, we learn that there are salt mist and burst tests for hydraulic hose before production. Let’s learn the other tests this time. Low temperature bending test. Put the hydraulic hose assembly in the cryostat. Keep the cryostat temperature lower than the min working temperature of hose and keep the…
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