Improper use of sand blasting tube will shorten life
Improper use of sand blasting pipe Under the premise of guaranteed quality, if used incorrectly, the service life of the hose will be greatly shortened. In actual work, most of the blast tube damage is caused by improper use.
(1) Under frequent and severe pressure shocks. Bursting of sand blasting pipes is generally not caused by the excessive static pressure, but is related to the severity and number of pressure shocks. During the operation of the construction machinery, the sudden rise or decrease of oil pressure will repeatedly occur in the oil pipe, which will cause frequent pressure shocks to the oil pipe, which will cause the oil seals in all parts to become more damaged, blistering and rupture of the hose, and loose and leaking joints Leak phenomenon. Therefore, during operation, the valve rod must not be pulled too hard, it must be gentle.
(2) The selection and installation of sandblasting pipes are unreasonable. When replacing the high-pressure hose, the length of the hose, the number of steel wires, the shape and size of the joint must be reasonable, and the degree of bending of the hose should be minimized; when tightening the joint nut, do not distort the hose, excessive bending and Distortion will greatly reduce the service life of the hose; protection measures should be taken on some parts that are prone to friction to prevent the hose from bursting due to wear.
(3) The operating temperature of the oil is too high. During the operation of construction machinery, the hydraulic system heats up the oil due to power loss, and the influence of external temperature (especially in summer), can cause the oil temperature to rise sharply. The higher the temperature of the oil, the easier the banana will age, the elasticity will be worse, the strength and sealing performance will decrease, and the sandblasting tube will burst quickly. Therefore, in the operation, when the temperature rise of the hydraulic system is too high or too fast, the cause should be promptly identified and eliminated; summer operations, especially continuous operations, should take necessary cooling measures.