Hydraulic Honing Tube is a steel tube with high-precision inner hole and excellent surface quality. It is mainly used as a cylinder in hydraulic systems and pneumatic equipment. It uses special processing technology to ensure the roughness, dimensional accuracy and wear resistance of the inner wall, which can effectively improve the performance and service life of hydraulic equipment.
Production process
The production of hydraulic honing tube mainly includes the following steps:
Pipe selection
Cold-drawn seamless steel pipe is used as raw material to ensure that the steel pipe has high strength and toughness.
Rough machining
The steel pipe is preliminarily turned by mechanical machining to remove the oxide layer, defects and part of the excess on the surface.
Honing process
Honing is the core process of hydraulic honing tube. Use high-precision honing tools to fine-process the inner hole of the steel pipe, and remove the remaining trace material on the inner wall through grinding to achieve the ideal size and finish.
Inspection and heat treatment
After honing, strict size, surface roughness and hardness testing are carried out. If necessary, heat treatment is required to improve the comprehensive mechanical properties and fatigue resistance of the steel pipe.
Surface treatment
To prevent corrosion and oxidation, the inner and outer surfaces of hydraulic honing tubes can be treated with anti-rust treatment, such as oiling or electroplating.
Common materials for hydraulic honing tubes include carbon steel and alloy steel to meet the needs of different application scenarios. The following are some common steel grades:
Carbon steel: such as 20#, 45#, with good processability and toughness, suitable for ordinary hydraulic systems.
Alloy steel: such as 40Cr, 42CrMo, with higher strength and wear resistance, suitable for high pressure and heavy load systems.
Stainless steel: such as 304, 316L, used in special occasions with corrosion resistance requirements.
The production and inspection of hydraulic honing tubes must comply with relevant standards in different countries and regions, including:
China: GB/T 8713 (Technical conditions for hydraulic and pneumatic precision inner diameter seamless steel tubes)
USA: ASTM A519 (Seamless carbon steel and alloy steel mechanical tubes)
Europe: EN 10305-1 (Technical conditions for cold-drawn seamless precision steel tubes)
Japan: JIS G3445 (Carbon steel tubes for mechanical structures)
These standards have clear requirements in terms of dimensional tolerances, inner surface roughness, straightness and mechanical properties.
Hydraulic honing tubes are widely used in:
Hydraulic cylinders and cylinders
As the inner wall material of hydraulic cylinders and cylinders, it ensures sealing, wear resistance and smooth operation.
Lifting equipment and construction machinery
Used in the manufacture of hydraulic arms and telescopic rods to withstand high-intensity working conditions.
Automobile and shipbuilding industry
Applied to the oil cylinders, brake cylinders and transmission systems of hydraulic systems to improve equipment performance and reliability.
Aerospace and military industry
Used in high-precision hydraulic and pneumatic systems to meet working requirements under extreme conditions.
Hydraulic honing tubes have become an indispensable core component in modern hydraulic and pneumatic systems with their excellent performance. With high-precision inner holes, wear-resistant and pressure-resistant characteristics, and quality control that meets international standards, hydraulic honing tubes play an important role in many fields and promote the development of mechanical manufacturing and industrial automation.
