Brief introduction to the process of seamless hydraulic tube

Brief introduction to the process of seamless hydraulic tube

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

Process introduction: precision cold-drawn seamless steel pipe is processed by black or gray phosphating process, and the phosphating steel pipe is sealed and anti-rust. It is a precision hydraulic seamless steel pipe. A dense phosphating layer is formed on the inner and outer surfaces of the steel pipe, and the oxidation of the steel pipe is effectively prevented after anti-rust treatment, so the anti-rust performance of the steel pipe is excellent. It can effectively absorb the paint on the surface of the steel pipe and effectively prevent the paint from peeling off. It is an ideal product for the environment of field work. When using steel pipes, it is recommended that users clean them after the steel pipes are bent, such as using a sponge to clean through compressed air. Of course, the system pre-cleaning before the normal operation of the hydraulic system is also a necessary step.

The steel pipes used in hydraulic systems 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 price and low precision. Although ordinary seamless steel pipes are commonly used, their mechanical properties are poor and their precision is low. Before use, they usually go through a series of welding, trial assembly, pickling, alkali washing, water washing, long-term oiling, leak testing, and other procedures. It is complicated, time-consuming, expensive and unreliable, and it has not been able to completely remove the residue in the pipe, which has become a major hidden danger of the failure of the entire hydraulic system at any time. According to statistics, 70% of the failures in the hydraulic system are caused by this reason.

The complex process of using ordinary seamless steel pipes in the hydraulic system virtually becomes a high-input and high-cost work, which greatly increases the cost of the enterprise. Compared with the above two kinds of steel pipes, DIN2391 series high-precision precision bright seamless steel pipes are special pipes for hydraulic systems. It has the following six advantages:

※ There is no oxide layer on the inner and outer walls of the steel pipe, which can be directly installed in the hydraulic system for use
※ Withstand high pressure without leakage
※ High precision
※ High finish
※ Cold bending without deformation
※ Flaring and flattening without cracks

Compare the process of using ordinary steel pipes:
※ Welding: produce welding slag, oxide layer, and possible leakage
※ Pickling: consumables, time-consuming, labor-intensive and dangerous
※ Alkaline cleaning: consumables, time-consuming, labor-consuming
※ Washing: waste of resources
※ Long-term oil consumption: power consumption, fuel consumption, time consumption, and labor consumption
※ Leak test: Repair welding is required

Conclusion: The whole process is complicated and the working hours are long

Process of using DIN series high-precision black phosphating precision seamless steel pipe:
Purchase Warehouse Get the DIN pipe installed on the ship Installed and put into use
Conclusion: Complete the task in one day, simple, fast, labor-saving, time-saving, and material-saving means saving money!

The connecting pipe fittings matched with the DIN series of high-precision bright seamless steel pipes are ferrule-type pipe joints. This pipe joint has simple structure, good performance, small size, light weight, easy piping operation, easy disassembly, and can withstand large Vibration and shock, play the role of anti-loosening, the working pressure is 16-40Mpa, it is an ideal pipeline connector in the hydraulic system.

Service life of hydraulic steel pipe

The working reliability and service life of construction machinery are closely related to the pollution of the hydraulic precision steel pipe system. According to domestic and foreign 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. Among them, 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 quality of the entire hydraulic precision steel pipe system. The current problem that the hydraulic system needs to overcome 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, 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 construction machinery and prolong the service life.