Surface treatment method of aluminum alloy piston and precision friction pair

A technology of surface treatment and friction pairs, applied in nanotechnology for materials and surface science, metal material coating technology, nanotechnology, etc., can solve problems such as increased friction coefficient, loose and rough surface layer structure
CN103484849BActive Publication Date: 2015-11-18邓才松 +1
3 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
邓才松
Publication Date
2015-11-18

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method of processing the surfaces of light alloy, in particular to a method of processing the surfaces of aluminium alloy pistons and precision friction pairs. The method comprises the steps that (1) washing is performed; (2) oxidization is performed; (3) hole plugging is performed. Nanoscale metal matrix ceramic oxidation film layers with the density up to the standard are respectively grown on the aluminium alloy pistons and precision friction pairs processed in the method, the density is increased, the diameters of blind holes are decreased obviously, nanometer penetrant blind holes are sealed, roughness is reduced, the friction coefficient is reduced, and the geometric dimensions are unchanged basically. The aluminium alloy pistons and precision friction pairs processed in the method can be installed for use in a matched mode without finish machining, industrial mass production can be achieved, and the method reduces production cost greatly compared with original technical methods.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a treatment method for the surface of a light alloy, in particular to a treatment method for the surface of an aluminum alloy piston and a precision friction pair. Background technique

[0002] Aluminum alloy has high specific strength and high specific rigidity, and is rich in aluminum resources, so it has become the second largest engineering material after steel. Due to its excellent mechanical and physical properties, alloys based on aluminum elements have been widely used in the fields of aerospace, machinery, electronics, automobiles and other structural parts. With the development of modern technology, the structure is lightened to improve performance, and the characteristics of aluminum alloy are used widely in the field of engines. The friction pair consisting of the piston (not including the piston ring), the cylinder block and the cylinder (sleeve) in the crank-connecting rod mechanism is basically made of aluminum ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More