hydraulic cutting machine

Hydraulic hose from the tube, enhancement layer and outer layer (Figure 7), the inner layer in direct contact with the fluid, it requires long-term work in the state should not be corrosive fluid can leak. In the enhancement layer under the action can withstand a certain pressure. Therefore, should adopt nitrile rubber, in addition to plastic material, the hardness, thickness and permanent deformation of the main factors that affect performance as well as the inner metric thread oring face seal fittings . Hardness and permanent deformation of great influence on the sealing hydraulic cutting machine. Usually high hardness, low permanent deformation after compression, the sealing performance is better. Generally in the 70 to 85 Shore A hardness, compression set is preferably 50%. The layer thickness is preferably 1.5 ~ 2.5mm, hydraulic ferrule hand, the heap of plastic. The surface of the inner layer is also an important factor in the performance of Ma Hang Quality. Hydraulic Hose rely mainly on the enhancement layer to withstand the pressure. Braided hose is by cement mortar with internal and external layer, due to the interaction between the contact wires in the same braid, when subjected to dynamic pressure due to friction caused by their different wire stretching between them and affect their durability. Pipe winding direction which is different from the two layers to form a working layer, intermediate between the two layers of plastic, there is no intersection between the two wires of the same working layer. So it will not move when subjected to the same pressure on the wire between the cross formed by bending stress concentration or friction wear. Therefore, durability, and can withstand high pressure. Hydraulic hose outer layer sticks to the enhancement layer protective effect, the general neoprene. Be careful not to affect the whole life of the hose aging cracking. Joint withhold hose connector from the connector cores, nuts, and coat components. Fitting the core, the main factors affecting performance of the stem length, structure and shape, wall thickness and material. And preventing pull-out from the sealing point of view, as long as possible requires the mandrel, but will be too long and the manufacturing cost is increased material waste.

thick will increase its liquidity in the withholding, causing excess glue in contact with the end face of thebsp pipe fittings sleeve and hose fittings accumulation, reducing the flow cross-section; too thin will when withholding is fracturing. While the inner layer of uniform thickness is also very important. If the thickness is uneven compression can cause side after breaking the one