Winding Flexible Rubber Expansion Joint Hand Forming Winding Pressure Vulcanization

The product size of the hand-build rubber flexible joint can be made into single wave, double wave or multi wave according to customer requirements, and the colloid is not limited by the mold. This product is made of inner and outer rubber layers, cord layers and steel ring tubular rubber parts, which are formed by high temperature and high pressure vulcanization, and then loosely combined with metal flanges or parallel joints. According to the different materials used in the rubber, there are natural rubber, nitrile rubber, EPDM rubber, neoprene rubber, etc., with high temperature resistance, acid and alkali resistance, corrosion resistance, wear resistance, oil resistance and other functions.

With the continuous development of the economy, sometimes it is necessary to use non-standard rubber soft joints in special cases, and the cost of remaking or replacing the mold is too high. Therefore, in order to save costs, people think of replacing the fixed mold vulcanized rubber soft joint with a winding rubber soft joint. What is a winding rubber soft joint and what is its production process? Winding rubber soft joint is composed of inner and outer two parts, rubber layer, ply and steel ring tubular rubber parts, which are made by hand, vulcanized at high temperature and high pressure, and then loosely combined with metal flanges or parallel joints. This product utilizes the advantages of rubber, such as high elasticity, high gas barrier, medium resistance, weather resistance and radiation resistance, to reduce vibration and noise, and can compensate for thermal expansion and contraction caused by temperature changes. Widely used in various piping systems.

Production process of winding rubber soft joint: In the production process of rubber soft joint, the inside is not pure rubber, but has a woven mesh. In order to make a qualified rubber soft joint, place the inner rubber layer tube blank on the workbench, apply an appropriate amount of release agent on the surface of the tube core, and then fill the inner rubber layer tube blank with an appropriate amount of air as the core. After the core is taken out, it is sorted, checked, and the whole diameter is stored, and then sent to the next process for winding and forming.

According to the production requirements, determine the parting parts, mouth shapes and winding strokes of the winding equipment. Before winding the first wire-rubber soft joint, the wire is applied in the direction of the wire by means of lead loops, tension assembly, wire separation and wire shaping. After that, fix the wire on the lead pipe of the tractor with a rubber cloth according to the winding direction, start the winding machine, and make the lead pipe move forward slowly. After adjusting the winding stroke, install the dielectric film and introduce the tube blank with the braided protective layer (the surface has been wiped with solvent), and then the wire-rubber soft joint winding can be started. When starting to wrap, the speed should gradually increase, when it reaches a certain speed,

When winding, the tension of the steel wire should be uniform, the steel wires on the tube blank should be arranged neatly and evenly, and the pressure tube of the traction device should be moderate and not too tight to prevent the tube blank from being deformed. When will non-standard rubber soft joints be used? 1) The length is very different from the molded rubber soft connection, too short or too long. 3) The difference between the drilling and the standard is too large, especially the center distance of the holes is too large, and the mold cannot meet the requirements.