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Production method of boron cast iron cylinder sleeve

A technology of cast iron and cylinder liners, which is applied in the field of preparation of boron cast iron cylinder liners, can solve the problems of affecting the service life of the engine, affecting the fuel consumption of the combustion chamber, and failing to meet the needs of use, and achieves ingenious design, simple structure, good mechanical strength and hardness Effect

Inactive Publication Date: 2017-04-05
张凌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Obviously, the cylinder liner is an essential part of the engine combustion chamber, and the quality of the cylinder liner directly affects the fuel consumption of the combustion chamber and the service life of the engine
Existing cylinder liners are generally integral, with protrusions on the surface to increase the bonding force between the two materials. This structure prolongs the service life of the engine to a certain extent, but it still cannot meet the needs of use

Method used

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  • Production method of boron cast iron cylinder sleeve
  • Production method of boron cast iron cylinder sleeve

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing.

[0018] Such as figure 1 with figure 2 As shown, the preparation method of the boron cast iron cylinder liner mainly includes the cylinder liner body 1 and the cylinder liner outer surface 2. On the cylinder liner outer surface 2, there are three layers of protrusions with different heights, that is, the lower layer of protrusions. Protrusion 10, middle-level protrusion 11 and upper-level protrusion 12; Lower-level protrusion 10, middle-level protrusion 11 and upper-level protrusion 12 can be columnar, conical, inclined-plane, concave, corrugated, Regular or irregular shapes such as zigzag, spherical, umbrella, mushroom, etc., common or uncommon shapes, the three-layer protrusions can be the same shape or different protrusions or two of them are the same The protrusions are preferably different from each other, wherein the height of the lower protrusions 10 is less than 0...

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Abstract

The invention discloses a production method of a boron cast iron cylinder sleeve. The boron cast iron cylinder sleeve comprises, by weight, 3.5-3.7% of C, 2.5-2.8% of Si, 0.7-1.0% of Mn, 0.04-0.045% of B, 0.008-0.15% of Cr, and the balance of Fe. The production method of the boron cast iron cylinder sleeve has the advantages of high automation degree, low energy consumption and low pollution; the produced boron cast iron cylinder sleeve has good mechanical strength and hardness, is suitable for being promoted and applied in production running, has a simple structure, and has ingenious design; different external diameter surface designs are adopted, so the boron cast iron cylinder sleeve produced through the method is easy to combine, mount and dismount; and three layers of projections with different heights are arranged on the surface, so the combination force between parts is effectively increased, a gap between the parts is reduced, the service life of the boron cast iron cylinder sleeve is prolonged, and oil consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of engine accessories, in particular to a method for preparing a boron cast iron cylinder liner. Background technique [0002] The cylinder liner is the cylinder liner, which is inlaid in the cylinder barrel of the cylinder block and forms the combustion chamber together with the piston and the cylinder head. Obviously, the cylinder liner is an essential part of the engine combustion chamber, and the quality of the cylinder liner directly affects the fuel consumption of the combustion chamber and the service life of the engine. The existing cylinder liner generally adopts integral type, and protrusions are arranged on its surface to increase the bonding force between the two materials. This structure prolongs the service life of the engine to a certain extent, but it cannot meet the use requirements. Contents of the invention [0003] Purpose of the invention: In view of the deficiencies in the prior art,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/06C22C37/10B22D27/04
CPCC22C37/06B22D27/04C22C37/10
Inventor 张凌
Owner 张凌
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