Sandblasting hose The copper plated hose is specially woven with steel wire, which can withstand the working pressure 3-4 times that of the cloth clip hose. It has high pressure resistance and excellent bending resistance. The alias of sand blasting hose is the rubber hose for sand blasting, which is mainly used for pressure blasting, rust removal and hemp removal on the metal surface. In addition, it can be used for wet sand blasting and dry sand blasting in engineering construction. It is mainly used in the fields of machining, shipbuilding and spraying. Every object has its own standard. Many people want to know the standard of sandblasting hose. Today, the editor of Laizhou Qiyuan Plastic Products Co., Ltd. will introduce the standards of sandblasting hose and relevant knowledge.

Standard for sand blasting hose

1. Technical standard of sand blasting hose

Only standard products can reassure users. Next, let's talk about its technical standards.

In terms of operating temperature, the temperature of sandblasting hose is generally - 20-70 ℃.

In terms of material and structure, sandblasting hose should have the following composition. One needs an inner rubber layer. 2、 There is a reinforcing layer, which is composed of natural or synthetic materials paved by appropriate methods, and it is mostly made of laminated cloth method and cord winding method. 3、 It has an outer glue layer.

In terms of hydraulics, the standards are as follows. The working pressure of sand blasting hose is 0.63MPa. When it carries out the hydraulic test work under twice the working pressure, no water seepage, local bulge, expansion and other abnormal phenomena are allowed.

The pressure of its anti-static hose should be maintained for one minute, but the length change should not exceed 0.8% of the upper and lower, the outer diameter change should not exceed 10% of the upper and lower, and for each meter, the torsion should not exceed 60&ORDM. Finally, the bursting pressure of sand blasting hose shall not be less than 4 times of the working pressure.

2. Bending standard of sandblasting hose

At 23 ℃, when it uses the smallest bending radius within 10 times of the nominal inner diameter, the deformation value shall not exceed 0.8 times of the outer diameter, and at - 25 ℃, two degrees above and below, no cracking is allowed after bending.

3. Wear resistance standard

This is also a judgment Sandblasting hose Quality is the main basis for good or bad. In the current standard, according to the method of ISO4649, the wear volume of sandblasting hose should not exceed 140MM&SUP3. In addition, the strength of interlayer bonding, ozone resistance index and mechanical properties (under verification pressure) of sandblasting hose are also important indicators for the quality consideration of sandblasting hose.