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Casting processing process of car air cylinder sleeve

A processing technology and technology of cylinder liner, applied in the field of cylinder liner, can solve the problems of lack of casting processing technology of cylinder liner, etc., and achieve the effect of good wear resistance

Inactive Publication Date: 2018-11-13
ZYNP GRP ANHUI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, there is a lack of an effective cylinder liner casting process, which can obtain a cylinder liner with good performance and easy to use; in order to solve the above defects, a solution is now provided

Method used

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Examples

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Embodiment Construction

[0034] A casting process of an automobile cylinder liner, the cylinder liner is composed of the following components in mass percentage:

[0035] Si: 23-25%, Al: 14-18%, Cu: 4.55-5.75%, Mg: 0.47-0.63%, Mn: 0.45-0.72, Zn: 0.65-1.35%, Ni: 1.35-1.85%, P: 0.25-0.37%; the balance is Fe;

[0036] Wherein, the cylinder liner casting process comprises the following steps:

[0037] Step 1: adding the raw materials of the above components into an electric furnace for smelting;

[0038] Step 2: Add carburant to adjust the chemical composition, scoop out the spectral sample, and after the composition is qualified, keep it at 1500°C for 15 minutes, and take it out of the furnace at about 1470-1490°C to obtain molten metal;

[0039] Step 3: Preheat the mold, the preheating temperature is 305-450°C;

[0040] Step 4: Spray a wear-resistant layer on the surface of the mold before pouring;

[0041] Step 5: Pouring the molten metal into the mold at a pouring temperature of 1350-1480°C;

[0...

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Abstract

The invention discloses a casting processing process of a car air cylinder sleeve. The air cylinder sleeve is composed of, by mass percent, 23 to 25% of Si, 14 to 18% of Al, 4.55 to 5.75% of Cu, 0.47to 0.63% of Mg, 0.45 to 0.72% of Mn, 0.65 to 1.35% of Zn, 1.35 to 1.85% of Ni, 0.25 to 0.37% of P and the balance Fe. According to selection and a preparing process of the air cylinder sleeve, an engine cylinder sleeve made of a hypereutectic alloy can be obtained, the air cylinder sleeve has the good wear resistance, meanwhile, the rigidity and the strength can meet the use needs to the air cylinder sleeve to a certain degree, hardness and tensile strength of the air cylinder sleeve can meet the use needs of the engine cylinder sleeve, and the process is simple, effect and easy to implement.

Description

technical field [0001] The invention belongs to the field of cylinder liners, and relates to a forging process, in particular to a casting process of an automobile cylinder liner. Background technique [0002] Automobile cylinder liner is the abbreviation of engine cylinder liner. It is inlaid in the cylinder barrel of the cylinder block and forms the combustion chamber together with the piston and cylinder head. The cylinder liner is divided into two categories: dry cylinder liner and wet cylinder liner. The cylinder liner is called a dry cylinder liner, and the cylinder liner whose back is in contact with cooling water is a wet cylinder liner. [0003] The dry cylinder liner is thinner, simple in structure, and easy to process; the wet cylinder liner directly contacts the cooling water, so it is beneficial to the cooling of the engine and is conducive to the miniaturization and weight reduction of the engine. [0004] The cylinder liner is a cylindrical part, which is pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/06C22C38/16C22C38/04C22C38/08C22C30/06B22C9/24C23C22/73C21D1/09
Inventor 张治纲刘艳林孙光文
Owner ZYNP GRP ANHUI CO LTD
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