Process and service life of precision hydraulic seamless steel pipe

Round cold drawn seamless hydraulic steel tube is made of precision cold drawn seamless steel pipe through black or gray phosphating process, and the phosphated steel pipe is sealed and rust-proofed.

Process introduction: The precision hydraulic seamless steel pipe is made of precision cold drawn seamless steel pipe through black or gray phosphating process, and the phosphated steel pipe is sealed and rust-proofed.

The inner and outer surfaces of the steel pipe form a dense phosphate layer, and after the rust-proof treatment, the steel pipe is effectively prevented from oxidation. Therefore, the steel pipe has excellent rust-proof performance. At the same time, the microporous phosphate film formed after the steel pipe surface The paint is adsorbed on the surface of the steel pipe to effectively prevent the paint from falling off. It is an ideal product for use in a field operation environment.

When using this steel pipe, it is recommended that the user do cleaning after the steel pipe is bent. For example, using a sponge and compressed air for pass-through cleaning. Of course, the pre-cleaning of the system before the normal operation of the hydraulic system is also a necessary step.

The steel pipes used in the hydraulic system are mainly stainless steel seamless pipes and ordinary seamless steel pipes. Although stainless steel seamless pipes have superior mechanical properties, they have not been widely used due to their high prices and low precision. Although ordinary seamless steel pipes are commonly used, they have poor mechanical properties and low precision. They usually go through a series of welding, trial assembly, pickling, alkali washing, water washing, long-term oil stringing, and leak testing before use. Complexity, time-consuming, unreliable materials, and the inability to completely remove the residues in the pipe, has become a major hidden danger for the entire hydraulic system to fail at any time. According to statistics, 70% of the failures in the hydraulic system are caused by this reason.

Note: The complicated process of using ordinary seamless steel pipes in the hydraulic system has virtually become a high-input and high-consumption work, which greatly increases the cost of the enterprise.

Compared with the above two kinds of steel pipes, seamless precision steel tube DIN2391 series high-precision precision bright seamless steel pipes are special pipes for hydraulic systems.

Service life

The working reliability and service life of construction machinery are extremely closely related to the pollution status of the hydraulic precision steel pipe system. According to statistics, about 70% of the failures of the hydraulic precision steel pipe system of construction machinery are caused by the pollution of the hydraulic system. Hydraulic system failures caused by solid particle pollutants account for 60% to 70% of the total pollution failures.

The pollution of the hydraulic system directly affects the performance of the entire hydraulic precision steel pipe system. The problem that the hydraulic system currently faces is how to effectively reduce and control the pollution of the system to ensure the reliability of various hydraulic precision steel pipe components and the entire system. Therefore, a reasonable analysis and effective control of the pollution of the hydraulic system is the key to ensure the normal operation of the hydraulic precision steel pipe system of the construction machinery and prolong the service life.