Description of the leakage of the broken hammer seal and prevention measures

The first type of seal is not abnormal:

1. When the oil is leaking at low pressure, it will not leak, and the roughness of the surface of the device will be poor. ----- Improve the roughness of the surface to reach 3.2~6.3umry with a lower hardness seal.

2. The oil ring of the piston rod becomes larger. Each stroke will drop a few drops of oil textile printing and dyeing mechanical seal, and the type of dust ring will be scraped off by the lip of the dust ring.

3, when the oil is leaking at low temperature, there is no oil leakage. There are two kinds of causes that are too much pain. One is that the data of the seal is not suitable for selection. The cold-resistant seal can be used to solve the problem.

The second type of seal has an abnormal condition:

1. The main oil seal is hardened on the surface, and the sliding surface has a crack; the cause ----- abnormal high-speed working pressure is too high.

2, the main oil seal appearance hardened, the entire sealed oil seal breaks the industrial pump mechanical seal, broken; the cause ---- hydraulic oil 蜕 change the oil temperature abnormally increased ozone damage to the seal and oil leakage.

3. The wear of the main oil seal is the same as that of the mirror surface; the reason is that the micro-motion is too high and the stroke is too small.

4, the main oil seal appearance of the mirror wear uneven seal has a phenomenon of swelling; the cause ---- side pressure too large too much pain, using improper oil and cleaning fluid.

5, the main oil seal sliding surface has damage and wear scars; the reason --- poor plating, there is a rust point cooperation surface rough piston rod selection information is not appropriate, rich in impurities.

6, the main oil seal lip has a crack scar scar; the cause ---- device chamfer is not appropriate, the device, storage methods are not appropriate.

7, the main oil seal sliding surface has indentation; the reason ---- hidden foreign debris.

8. There is crack crack in the lip of the main oil seal; the reason is that the oil is not suitable, the working temperature is high or low, the back pressure is too high, and the pulse pressure frequency is too large.

9. The main oil seal has carbonization and charring transformation; the reason---- residual air is adiabatic and tight.

10, the main oil seal with the extrusion of cracks; the reason ---- pressure is too large, the extrusion gap is too large, the support ring is used as the device, the groove planning is unreasonable.