When people choose rubber expansion joint, they will have a question: how many years can rubber expansion joint last? What is the usage cycle? Is the frequency of replacement frequent? In fact, there are many factors that affect the service time of rubber flexible joint. Let’s simply list a few.
1. The service life of rubber flexible expansion joint is affected by the stress and expansion of rubber expansion joint
Due to the influence of the shape of the main body itself, the installation method of convex grooves or pipe trenches, and the different installation methods of each sealing ring, may cause uneven force distribution and force center deviation, leading to a focus on side lightness. Under the premise of uneven long-term stress accumulation, it is easy to cause expansion and deformation. When the rubber expansion joint is removed again, it is likely to be deformed. Therefore, during installation, balance and stress uniformity should be controlled.
2. The service life of rubber expansion joint is affected by the specification of flexible rubber expansion joint
When the specification of the rubber expansion joint is deviated, the gap may be deformed.
The gap problem can be mainly summarized into several elements:
One is the adhesive problem of the material. Due to formula reasons, many silicone materials may have poor resilience and insufficient tensile strength, resulting in low stress and leakage of gaps during use.
The second is the problem occurred in the processing of silica gel products manufacturers: the product is brittle, which causes the rubber expansion joint to roll up thin, which will lead to the immature inner drum of commercial rubber and deformation after long-term tension and compression. Due to the influence of hardness and softness, sometimes the softness of the rubber expansion joint can change the function and structure of the product, so the rubber expansion joint chooses different hardness and softness in use. During stretching and extrusion, the rubber expansion joint will have inevitable problems, such as too much stress on the gap, so that the hardness is too high, which will lead to the deformation of the commodity and not easy to rebound
Working Principle
The clamp rubber expansion joint mainly uses the unique properties of rubber, such as high elasticity, high air tightness, medium resistance and radiation resistance. It is made of polyester cord fabric with high strength and strong thermal stability, which is deflected and compounded, and is molded and cross-linked under high pressure and high temperature. High internal density, able to withstand high pressure, and has excellent elastic deformation effect. The displacement function is particularly suitable for areas with complex geological conditions, large settlement amplitude, frequent changes in cold and hot temperatures during pipeline operation, and easy damage to the pipeline. Self permutation physical destruction.
Installation Method
For the installation of clamp type flexible rubber expansion joint in the pipeline construction, first stretch the clamp type flexible rubber expansion joint to the required length, then tighten the bolts and tighten the rear diagonal screws in the right position. The limiting device is the core of the clamp type flexible rubber expansion joint, which can effectively solve the problems of pipeline expansion and displacement.
Post time: May-18-2023
