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Features during the use of sand blasting pipes


When assembling the blasting pipe, if the amount of buckle is too small, that is, when the pressure between the joint and the hose is too loose, the hose may come out of the joint in the early stage under the action of oil pressure; if the amount of buckle is too large, the joint and the If the hose is pressed too tightly, it will easily cause the inner layer of the hose to be partially damaged and cause cracks. The high-pressure oil will directly enter the steel wire layer from the rupture, and then go through the gap between the steel wires to the tail of the jacket, or spray all the way to the steel wire layer. Build up everywhere, so that the outer layer of rubber will bulge or even crack. The inner and outer layers of the pipe of the sand blasting pipe are oil-resistant rubber, and the middle is (2 to 4 layers) of cross-braided steel wire or wound steel wire. Poor quality hoses will appear: uneven wall thickness of the hose; too tight or too loose steel wire braiding or too few layers of steel wire; the amount of deformation (elongation, shortening or bending deformation) of the hose after compression is large; the outer layer of rubber Poor air-tightness results in corrosion of the steel wire; poor sealability of the inner layer of the glue allows high-pressure oil to easily enter the wire layer; insufficient adhesion between the glue layer and the wire layer. The above conditions will reduce the bearing capacity of the hose, and eventually burst in the weak part of the pipe wall.

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