Aluminum cylinder jacket based on jagged surface structure and production method thereof

A surface structure and cylinder liner technology, which is applied to cylinders, cylinder heads, coatings, etc., can solve the difficulty in meeting the requirements of cylinder liner strength, wear resistance and cost, limited bonding force between cast iron cylinder liners and aluminum cylinder blocks, cylinder Overcome the problems of high production cost and achieve the effect of excellent wear resistance, low manufacturing cost and convenient processing

Inactive Publication Date: 2017-12-15
ZYNP GRP ANHUI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the aluminum spraying layer is sprayed under normal pressure. Although the operation is simple and convenient, the bonding force between the cast iron cylinder liner and the aluminum cylinder body is limited, and the tensile strength between the cast iron cylinder liner and the aluminum cylinder body does not exceed 30MPa
[0004] Due to the high production cost of traditional cylinder liners, long running-in time, poor bite force and short service life, it is difficult to meet the requirements of high-performance, energy-saving and environmentally friendly engines for cylinder liner strength, wear resistance and cost

Method used

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  • Aluminum cylinder jacket based on jagged surface structure and production method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Step 1, initial co-infiltration

[0048] After the cylinder liner is preheated at 300~350℃, it is sent into the salt bath for salt bath co-infiltration treatment. 100 minutes, wash after salt bath co-infiltration treatment, remove the salt and carbon on the surface of the cylinder liner after co-infiltration;

[0049] Step 2, secondary co-infiltration

[0050] Apply a layer of co-penetration agent evenly on the inner surface of the cylinder liner treated in step 1, then place the cylinder liner on the idler roller of the machine tool, and then insert the plasma torch nozzle into the inner surface of the cylinder liner, and the cylinder liner is driven by the horizontal idler roller The fixed axis rotates, and the plasma torch nozzle makes a reciprocating linear motion, and scans a spiral hardening zone on the inner surface of the cylinder liner to be processed, which completes the secondary co-infiltration process.

[0051] Wherein, the co-infiltration agent consists ...

Embodiment 2

[0054] Step 1, initial co-infiltration

[0055] After the cylinder liner is preheated at 330°C, it is sent into the salt bath for salt bath co-infiltration treatment. After cleaning, remove the salt and carbon on the surface of the cylinder liner after co-infiltration;

[0056] Step 2, secondary co-infiltration

[0057] Apply a layer of co-penetration agent evenly on the inner surface of the cylinder liner treated in step 1, then place the cylinder liner on the idler roller of the machine tool, and then insert the plasma torch nozzle into the inner surface of the cylinder liner, and the cylinder liner is driven by the horizontal idler roller The fixed axis rotates, and the plasma torch nozzle makes a reciprocating linear motion, and scans a spiral hardening zone on the inner surface of the cylinder liner to be processed, which completes the secondary co-infiltration process.

[0058] Wherein, the co-infiltration agent consists of 35 parts by weight of boron carbide powder wi...

Embodiment 3

[0061] Step 1, initial co-infiltration

[0062] After the cylinder liner is preheated at 350°C, it is sent to the salt bath for co-infiltration treatment. The temperature of the salt bath is 520 °C, and the mass concentration of cyanate in the salt bath is 40%. After cleaning, remove the salt and carbon on the surface of the cylinder liner after co-infiltration;

[0063] Step 2, secondary co-infiltration

[0064] Apply a layer of co-penetration agent evenly on the inner surface of the cylinder liner treated in step 1, then place the cylinder liner on the idler roller of the machine tool, and then insert the plasma torch nozzle into the inner surface of the cylinder liner, and the cylinder liner is driven by the horizontal idler roller The fixed axis rotates, and the plasma torch nozzle makes a reciprocating linear motion, and scans a spiral hardening zone on the inner surface of the cylinder liner to be processed, which completes the secondary co-infiltration process.

[006...

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Abstract

The invention discloses an aluminum cylinder jacket based on a jagged surface structure. The aluminum cylinder jacket comprises a cylinder jacket substrate. A burr part and an annular groove body part are formed on the outer surface of the cylinder jacket substrate, are mutually independent and are arranged in spaced and staggered modes. The burr part is provided with a plurality of protrusions. The height of the protrusions is 0.1-0.5 mm. The groove depth of the annular groove body part is 0.2-0.4 mm. The invention further discloses a method for preparing the aluminum cylinder jacket. Through the aluminum cylinder jacket based on the jagged surface structure, the binding strength with the cylinder jacket substrate can be improved, the aluminum cylinder jacket has enough abrasion resistance, and the effective thermal conductivity can be obtained advantageously.

Description

technical field [0001] The invention relates to the field of cylinder liner production, in particular to an aluminum cylinder liner based on uneven surface structure and a production method thereof. Background technique [0002] The cylinder liner is the abbreviation of the cylinder liner. It is inlaid in the cylinder barrel of the cylinder block and forms the combustion chamber together with the piston and the cylinder head. Cylinder liners are divided into two categories: dry cylinder liners and wet cylinder liners. The cylinder liner whose back does not contact the cooling water is called a dry cylinder liner, and the cylinder liner whose back is in contact with cooling water is a wet cylinder liner. The dry cylinder liner has a thinner thickness, simple structure and convenient processing. The wet cylinder liner is in direct contact with the cooling water, so it is beneficial to the cooling of the engine, and is conducive to the miniaturization and weight reduction of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/00B22D13/00C23C12/00
CPCF02F1/004B22D13/00C23C12/00F02F2200/06
Inventor 黄德松
Owner ZYNP GRP ANHUI CO LTD
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