The cause of rubber soft joints appearing degumming
The cause of rubber soft joints appearing degumming
The rubber flexible joint situation after debonding is not a single cause. It is caused by many reasons. The main reason is that the flange of the rubber soft joint supporting facilities is not standard, and the general large-diameter welding process is used. According to our country's standards, it should be used. Butterfly valve special flange is a large-diameter flange, which increases the contact area between the gasket surface and the raised surface of the supporting flange to avoid pulling up. Secondly, the pipeline equipment is not timely, causing the rubber soft connection in operation over the limit deviation. Therefore, the following aspects must be observed: rubber soft joints in the installation, it is strictly prohibited to exceed the deviation limit of the equipment. When the rubber soft docking device is in the flat, suspended or straight direction, the actual radial displacement pressure of the rubber soft docking is lower than the bearing capacity of the pipeline. Otherwise, an anti-pull device should be installed to prevent fracture under pressure at work.
The pipeline equipment is not timely, and the rubber soft joint has exceeded the limit deviation in operation. Therefore, we must comply with the following aspects when installing rubber soft joints, and strictly forbid to exceed the deviation limit of the equipment. When the rubber soft docking equipment is in the flat, hanging, straight direction, the actual radial displacement pressure of the rubber soft docking is lower than the bearing capacity of the pipeline. Otherwise, an anti-pulling device should be installed to prevent fracture under pressure during work.
Check the strength of the joint part of the rubber soft joint. If it is lower, it is mostly caused by inaccurate bonding method. Inaccurate bonding method will reduce the strength of the rubber flexible joint. This is when the connector joint will easily crack. Such as moving knife, grinding and polishing, lower layer of cloth, grinding and polishing too much, insufficient length of steel lap, insufficient number of steps, rubber performance is not very good or already common rubber soft joint due to its own sulfur failure, galvanized steel wire rope after grinding and polishing, galvanized steel wire rope rust, etc., the strength of rubber soft joint may be greatly affected and the joint may fracture during the use.
When not using the rubber soft joint, you can apply some light calcium powder on its surface. I just bought wrapped with white steamed pills and horsetail leather band. The white one is talcum powder. Talcum powder is cheap, easy to use and has excellent practical effect. There is a certain degree of corrosion resistance to rubber soft joints, but pipes with strong corrosion must be lined with teflon to extend the life of the rubber. The heat resistance of any kind of rubber soft joint is around -20°C-150°C, and cannot be used in extreme environment. Lay the rubber soft joint and protect the grounding device to prevent tipping; during installation, prevent sharp objects from touching the welding slag to avoid damaging the surface of the sphere.
