How to cope with the blistering of clamped rubber flexible joints

How to cope with the blistering of clamped rubber flexible joints
Pipe clamp rubber soft joint is to use pipe clamp instead of flange and foot bolt. When using, the two pipes of the pipe clamp rubber soft joint can be conveniently set on the pipe to be connected, and the rubber soft joint can be connected by the hoop. The joint is fixedly connected to the pipe; when disassembling, the above-mentioned pipe hoop can be loosened. Thus, it can achieve the purpose of compensating the offset amount caused by heat expansion and cold contraction of the pipeline and water circulation. Throat hoop type rubber soft connection in the production process, the inner vulcanized rubber layer of steel wire cord fabric and vulcanized rubber connection is not tight, resulting in gaps in the inner vulcanized rubber layer. After installation, the working pressure is pressed and water is injected into the inner layer through the gap. This leads to blistering and leakage of the hose clamp rubber flexible joint.
 
The main reason for blistering of rubber soft joints is that the inner rubber layer of cord fabric and vulcanized rubber are not closely fused during the production process of rubber soft joints, resulting in gaps in the inner rubber layer. The inner layer causes the rubber soft joint to blister and seep. There are many reasons for blistering of rubber soft joints, some are raw material problems, some are improper operation of workers when processing the ball, and some are time pressure problems. The material of rubber soft joints is vulcanized rubber. Foam is also very common. If the plastic material is parked for too long or at too high a temperature, some of the polyurethane will burn and dissolve. If the plastic material is parked for too long, it should be treated in the opposite direction. The plastic material is vulcanized too fast. Adjust the calculation of the formula, check whether the critical pressure of the vulcanization accelerator is close to the melting temperature of the foaming rubber and match each other so that the vulcanization speed matches the speed of polyurethane foaming.
 
Rubber ball molded parts in the vulcanization process is the product of chemical reaction with silicone rubber in the vulcanization tank through high temperature and catalytic reaction of sulfate. It is not possible to achieve a thorough cleaning effect on rubber soft joints with cleaning agents. It is necessary to sandblast the mold shell or use a metal brush to clean the mold shell. Rubber joints produce a lot of stains when vulcanizing rubber. These scaling substances are always present in the mold shell. If they accumulate for a long time, they can corrode the mold shell and affect the rubber joint. The normal appearance is formed and the surface quality is flat. Therefore, the quality of the rubber flexible joint is also related to the quality of the mold shell.