Rubber joint consists of flange and rubber ball. Both of them are important. For the surface treatment, there are galvanization and painting. Then which on is better? Let’s talk about it.
Rubber soft joint is mostly used in the connection of pipes which need noise reduction, shock absorption and displacement absorption. Same as long distance steel pipe, the connection of pipe sections need such joint. However, the function of rubber joint is not that simple as connector of long distance pipe. If pipe vibrates or experience thermal expansion and contraction force, it will cause distortion. What’s worse, it may cause serious security risk.
It adsorbs cold galvanization method on the flange. Cold galvanization is also called electrogalvanizing. It’s to attach zinc powder on the flange surface with electrolyte method. After the treatment, the flange becomes glossy and bright. In the meantime, the joint get excellent corrosion and chemical resistance. Galvanization has so many advantages. But there is something you should pay attention to. Before galvanization, you should make a thorough clean on the flange surface. Because any residue, waterlogging or stain will cause bad influence to the galvanization effect.
Another surface treatment of rubber joint is painting. It’s to spray paint on the flange surface. Paint can protect flange from corrosion, but the effect is not good as galvanization. Besides, the dry paint layer is easy to fall off. What’s more, it’s expensive than galvanization with longer working time.
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