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A kind of spiral burr type aluminum alloy cylinder liner and preparation method thereof

An aluminum alloy, helical technology, applied in the field of helical burr-type aluminum alloy cylinder liner and its preparation, can solve the difficulty in meeting the requirements of cylinder liner strength, wear resistance and cost, low yield and productivity, and cylinder liner production High cost and other problems, to achieve the effect of shortening the running-in time, prolonging the service life and improving the bonding strength

Active Publication Date: 2019-04-12
ZYNP GRP ANHUI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the production cost of the traditional cylinder liner is high, the running-in time is long, the bite force is poor, the service life is short, and it is difficult to meet the requirements of high-performance energy-saving and environmentally friendly engines for the strength, wear resistance and cost of the cylinder liner
For the heat-insulating ceramic cylinder liner, its inner surface is coated with silicon carbide, hard chromium plating, electrodeposited nickel-phosphorus alloy, thermal spraying wear-resistant alloy, surface carburizing and laser phase transformation hardening, etc., but most of these treatment processes are complex in technology and cost High, large deformation, low yield and productivity

Method used

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  • A kind of spiral burr type aluminum alloy cylinder liner and preparation method thereof

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Embodiment 1

[0026] Such as figure 1 As shown, this embodiment discloses a helical burr-type aluminum alloy cylinder liner, a helical burr-type aluminum alloy cylinder liner, including a cylinder liner body, the inner surface of the cylinder liner body is coated with an inner coating 1, the The surface roughness of the inner coating 1 is 80 μm, and the thickness is 0.2 mm; the outer surface of the cylinder liner body is provided with burrs 11, which are distributed in a spiral shape, and the height of the burrs 11 is 0.1 mm.

[0027] The chemical composition of the cylinder liner body includes Si content of 5wt.%, Ti content of 7wt.%, Fe content of 0.3wt.%, Mn content of 0.6wt.%, Pd content of 0.05wt.%. The Sr content is 2.3wt.%, and the rest is Al.

Embodiment 2

[0029] Such as figure 1 As shown, this embodiment discloses a spiral burr-type aluminum alloy cylinder liner, including a cylinder liner body, the inner surface of the cylinder liner body is coated with an inner coating 1, and the surface roughness of the inner coating 1 is 100 μm , the thickness is 0.3mm; the outer surface of the cylinder liner body is provided with burrs 11, and the burrs 11 are distributed in a spiral shape, and the height of the burrs 11 is 0.3mm. The chemical composition of the cylinder liner body includes Si content of 5wt.%, Ti content of 7~8wt.%, Fe content of 0.35wt.%, Mn content of 0.7wt.%, Pd content of 0.06wt. %, the Sr content is 2.5wt.%, and the rest is Al.

Embodiment 3

[0031] Such as figure 1 As shown, this embodiment discloses a spiral burr-type aluminum alloy cylinder liner, including a cylinder liner body, the inner surface of the cylinder liner body is coated with an inner coating 1, and the surface roughness of the inner coating 1 is 80 ~120 μm, the thickness is 0.2~0.4mm; the outer surface of the cylinder liner body is provided with burrs 11, the burrs 11 are distributed in a spiral shape, and the height of the burrs 11 is 0.1~0.5mm.

[0032] The chemical composition of the cylinder liner body includes Si content of 6wt.%, Ti content of 8wt.%, Fe content of 0.4wt.%, Mn content of 0.8wt.%, Pd content of 0.07wt.%. The Sr content is 2.6wt.%, and the rest is Al.

[0033] Since the inner coating of the invention is attached to the inner surface of the cylinder liner body and has relatively high hardness, the running-in time of the cylinder liner can be shortened and the service life of the cylinder liner can be prolonged. The thickness of...

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Abstract

The invention discloses a spiral burr type aluminum alloy cylinder liner. The spiral burr type aluminum alloy cylinder liner comprises a cylinder liner body, the internal surface of the cylinder linerbody is coated with an internal coating, the surface roughness of the internal coating is 80-120 [mu]m, and the thickness of the internal coating is 0.2-0.4 mm; and the external surface of the cylinder liner body is provided with burrs, the burrs are spirally distributed, and the height of the burrs is 0.1-0.5 mm. The invention also discloses a method for producing the spiral bur type aluminum alloy cylinder liner. The spiral bur type aluminum alloy cylinder liner has the advantages of good biting force, long service life and good wear resistance.

Description

technical field [0001] The invention relates to the field of cylinder liner production, in particular to a helical burr type aluminum alloy cylinder liner and a preparation method thereof. Background technique [0002] Automobile engine is a machine that can convert other forms of energy into mechanical energy. It is the heart of the automobile and affects the power, economy and environmental protection of the automobile. As one of the main accessories of the engine, the cylinder liner is a key component of the A-level engine, and its performance directly affects the technical requirements of the engine's power, reliability, economy, emission, and noise. [0003] At present, the production cost of the traditional cylinder liner is high, the running-in time is long, the bite force is poor, the service life is short, and it is difficult to meet the requirements of the high-performance energy-saving and environmentally friendly engine for the strength, wear resistance and cost ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00B22D13/02B22C3/00C23C12/00
Inventor 黄德松
Owner ZYNP GRP ANHUI CO LTD
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