Composite wear-resisting cylinder barrel and preparing method thereof

Abstract

The invention discloses a composite wear-resisting cylinder barrel and a preparing method thereof. The composite wear-resisting cylinder barrel comprises a composite wear-resisting cylinder barrel outer tube and a wear-resisting composite wear-resisting cylinder barrel lining. According to the composite wear-resisting cylinder barrel, the appropriate composite wear-resisting cylinder barrel outer tube is selected according to the using pressure of the composite wear-resisting cylinder barrel, a plurality of axially-through grooves evenly distributed in the circumferential direction are formed in the inner wall of the composite wear-resisting cylinder barrel outer tube through machining by rolling equipment, a composite wear-resisting cylinder barrel inner tube is inserted into the composite wear-resisting cylinder barrel outer tube, the outer wall of the composite wear-resisting cylinder barrel inner tube and the inner wall of the composite wear-resisting cylinder barrel outer tube are tightly compounded together through inner bore drawing pipe expanding, then honing machining is carried out, related technical requirements are met, and the finished product of the composite wear-resisting cylinder barrel is formed. By means of the composite wear-resisting cylinder barrel and the preparing method, the wear-resisting performance of the cylinder barrel can be greatly improved, and the service life of the cylinder barrel can be prolonged; and meanwhile, the production efficiency of the composite wear-resisting cylinder barrel is improved, the product cost is reduced, and the application prospect is wide.

Description

technical field [0001] The invention relates to a cylinder and a preparation method, in particular to a composite wear-resistant cylinder and a preparation method, belonging to the field of mechanical processing and molding. Background technique [0002] At present, hydraulic cylinders are widely used. Due to the long-term operation of hydraulic cylinders, the sealing and guiding devices on the pistons will rub against the inner wall of the cylinder, which will cause wear on the inner wall of the cylinder and affect the normal use of the hydraulic cylinder. The inner wall of the cylinder will wear Finally, the entire hydraulic cylinder needs to be replaced, especially a large hydraulic cylinder, and the replacement cost is very high. At present, in order to reduce the wear of the inner wall of the cylinder, large-scale hydraulic cylinders are treated by spraying ceramics on the inner wall of the cylinder or surfacing wear-resistant layers on the inner wall of the cylinder. T...

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Problems solved by technology

[0002] At present, hydraulic cylinders are widely used. Due to the long-term operation of hydraulic cylinders, the sealing and guiding devices on the pistons will rub against the inner wall of the cylinder, which will cause wear on the inner wall of the cylinder and affect the normal use of the hydraulic cylinder. The inner wall of the cylinder will wear Finally, the entire hydraulic cylinder needs to be replaced, especially a large hydraulic cylinder, and the replacement cost is very high

At present, in order to reduce the wear of the inner wall of the large hydraulic cylinder, the method of spraying the inner wall of the cylinder with ceramics or surfacing the wear-resistant layer on the inner wall of the cylinder is used to deal with it. These methods have low production efficiency and high production cost, and cannot meet the needs of the market.

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