Rubber hoses are indispensable in modern industry. Most hoses on the market today resist corrosion. Even so, they can still corrode. Why does this happen? Orientflex will explain.
Factors That Cause Corrosion in Corrosion-Resistant Rubber Hoses
First, the pickling process can lead to corrosion leaks. Pickling often removes thin oxide layers from welds and heat-affected zones. But controlling pickling time and temperature is tricky. At certain temperatures, too much pickling time causes excessive corrosion of bellows. This makes their surfaces dark and dull. In severe cases, they turn iron gray. High pickling temperatures also leave surfaces rough and dark gray. They may even create corrosion zones in weld heat-affected areas. All these issues can cause corrosion and perforation.
Second, the rubber hose’s quality affects its corrosion resistance. Demand for rubber hoses keeps growing. This has led to more and more suppliers. Not all of them, though, offer qualified products. Many factories use recycled materials instead of high-quality raw ones. This leaves impurities inside the hoses. As a result, their corrosion resistance and other properties drop sharply.
When corrosive media and special active anions—like chloride or sulfide ions—flow through the pipeline, they attack weak points in the passivation film. These weak points lie along the weld fusion line’s edge. This creates tiny corrosive holes, leading to pitting, corrosion, and leaks. For this reason, you must take steps to prevent rubber hose corrosion.
Orientflex is a hose manufacturer that uses top-grade raw materials for rubber tubes. We also guarantee all hoses are 100% qualified before delivery. Our cost-effective hoses help you work efficiently. Contact us now for more details.