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Dual-alloy compound cylinder body and manufacture method thereof

A composite cylinder and double alloy technology, applied in cylinders, cylinder heads, engine components, etc., to achieve high heat transfer efficiency, smooth and beautiful appearance, and improve heat transfer efficiency

Inactive Publication Date: 2009-09-09
GUIZHOU JINTAI SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But so far, there is no solution that can improve the various shortcomings of the original cylinder block, and there is no patent application for using a double alloy to manufacture the cylinder block.

Method used

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  • Dual-alloy compound cylinder body and manufacture method thereof
  • Dual-alloy compound cylinder body and manufacture method thereof
  • Dual-alloy compound cylinder body and manufacture method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment

[0025] Embodiment: adopt the present invention to manufacture double-alloy composite cylinder block:

[0026] In the first step, a cylinder liner blank is prepared according to a conventional method by using a chromium-vanadium-titanium cast iron alloy containing 0.25% to 0.35% of chromium, 0.32% to 0.38% of vanadium and 0.05% to 0.1% of titanium;

[0027] The second step is to use a precision CNC lathe to turn and process three protruding inlaid rings with a cross-sectional size of 2mm×2mm on the outer wall of the cylinder liner blank;

[0028] The third step is to preheat the cylinder liner with the inlaid ring, place it in the middle of the pre-designed mold and fix it with a steel core, and then close the left and right molds for use;

[0029] The fourth step is to use the aluminum alloy containing 6% to 8% of silicon and 0.2% to 0.4% of magnesium to melt in the No. 1 pit-type electric furnace, and when the temperature rises to about 710°C, transfer the molten aluminum to ...

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Abstract

The invention discloses a dual-alloy compound cylinder body and a manufacture method thereof. The cylinder body consists of a cylinder sleeve manufactured by chromium, vanadium, titanium and cast iron alloy as well as a cylinder sleeve cover cast by aluminum alloy; the position of the cylinder sleeve and the position of the cylinder sleeve cover are fixed as a whole by an embedding ring to facilitate the cylinder sleeve and the cylinder sleeve cover to cooperate intimately. The manufacture method comprises: using chromium, vanadium, titanium and cast iron alloy to manufacture the cylinder sleeve; processing the embedding ring; preheating the cylinder sleeve, fixing the cylinder sleeve in a die, and folding the left and right split dies; melting and refining the aluminum alloy twice in a well type furnace, casting the aluminum alloy solution in the dies after passing the test and cooling naturally; after cooling and passing test, cutting out a dead head and a pouring head, removing burrs, and carrying out quench hot treatment to obtain the cylinder body flan; fine processing the cylinder body flan and polishing the inner wall of the cylinder body to finally obtain the cylinder body product. The cylinder body of the invention has smooth and beautiful appearance, high heat transference efficiency, light weight, and is capable of reducing engine power consumption and suitable for engine manufacturers.

Description

technical field [0001] The present invention relates to the cylinder of an engine, and more particularly to the cylinder in which a moving piston or plunger is placed, and also to a method for its manufacture. Background technique [0002] A cylinder is a cylindrical hollow chamber in an engine that contains a piston or plunger that is pushed by the pressure or expansion of the working fluid. The traditional cylinder block is basically cast iron. The main disadvantages of this traditional product are poor heat transfer, rough appearance, unsightly appearance, and heavy cylinder block. For this reason, people have studied some new technical schemes, as No. 200410089929.2 of Chinese patent application " cylinder block for internal combustion engine ", No. 200410103454.8 " anodic oxide film formation method of aluminum alloy cylinder inner wall ", No. 200510104293.9 " cylinder of internal combustion engine (one) ", No. 200510104294.3 "Cylinder of internal combustion engine (tw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/00F16J10/02
Inventor 刘关健安世轩孙廉贵张文
Owner GUIZHOU JINTAI SCI & TECH DEV
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