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Method for detecting the quality of high pressure hose

First of all, from visual inspection, the wall thickness of the poor-quality high-pressure hose is uneven, the steel wire is too tight or the number of layers is too small

Methods of testing the quality of high pressure hoses:

First of all, from visual inspection, the wall thickness of the poor-quality high-pressure hose is uneven, the steel wire is too tight or the number of layers is too small, the hose is slightly deformed by pressure, it is easy to be rusted, and the adhesion between the rubber layer and the steel wire layer is insufficient. These conditions will make the pipe wall prone to bursting.

Secondly, improper selection of withholding amount and crimping speed when assembling the hose and joint, or unreasonable selection of structure, material, and size of the joint can cause the hose and joint to be too tight or too loose, resulting in early damage to the joint.

In addition, unreasonable joint design and poor processing quality will also cause damage to the inner rubber; if the joint material is not properly selected, it will easily deform during the crimping process, which will affect the crimping quality and shorten the life of the hose.

If the high-pressure hose has quality assurance, if it is damaged, it is usually improperly used, and the first thing to bear the brunt is the installation process. At the same time, the normal use should also check the high-pressure hose from time to time. The following is the daily work. The requirements are written down:

  1. First of all, do not twist the high-pressure hose during installation, otherwise it will cause damage to the high-pressure hose or loose connection.
  2. When the bending radius is too small, a right-angle joint is generally used to avoid sharp bending and twisting of the high-pressure hose.
  3. During normal operation, the valve stem should not be pulled too hard, but must be gentle, otherwise it will cause the high-pressure hose to burst.
  4. In order to avoid damage to the high-pressure hose and flow restriction, the bending radius should be as large as possible.
  5. When the temperature rise of the hydraulic system is too high during operation, the high-pressure oil pipe should be checked in time, and necessary cooling measures should be taken during continuous operation.
  6. When installing the high-pressure hose between objects, a certain space should be left to prevent the high-pressure hose from rubbing against the object during operation. If it cannot be avoided, try to take some protective measures. Such as high pressure hose sheath.
  7. It is important that the selection of the hose must be reasonable.