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Manufacturing method for engine shaft

A manufacturing method and engine shaft technology, applied in the mechanical field, can solve problems such as short lifespan

Inactive Publication Date: 2016-01-27
贾丽英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The engine is the heart of many mechanical equipment. The quality of the engine determines the life and quality of the equipment to a great extent. The engine shaft is blocked by a non-stop rotation, which is under great pressure. The quality of the engine shaft also affects the life It is very important, but the current engine shafts are mostly mechanical structures, and the overall life is relatively short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for manufacturing an engine shaft, comprising the following steps:

[0018] Select carbon steel with a Young's modulus of 2, forge and smelt the carbon steel to achieve a yield strength of 1.

[0019] After heating to 100 degrees Celsius, quickly put it in ice water to cool.

[0020] After taking it out, burn it for 10 minutes, then let it cool naturally.

[0021] After cooling, put it into the furnace for melting, and add 10-26% microcrystalline cellulose, 10% ethylene oxide and 2% dry ice while melting.

[0022] After 10 minutes, the metal liquid was poured off and allowed to cool.

[0023] Then stretch the material to make it thicker.

[0024] Then put it on the jig of the lathe, the feed rate is 1mm / min, and at the same time, the top rotates synchronously, and the engine shaft is turned out.

Embodiment 2

[0026] A method for manufacturing an engine shaft, comprising the following steps:

[0027] Select carbon steel with a Young's modulus of 2, forge and smelt the carbon steel to achieve a yield strength of 2.

[0028] After heating to 200 degrees Celsius, quickly put it into ice water to cool.

[0029] After taking it out, burn it for 20 minutes, then let it cool naturally.

[0030] After cooling, put it into the furnace for melting, and add 26% microcrystalline cellulose, 26% ethylene oxide and 6% dry ice while melting.

[0031] After 30 minutes, pour off the metal liquid and cool.

[0032] Then stretch the material to make it thicker.

[0033] Then put it on the jig of the lathe, the feed rate is 3mm / min, and at the same time, the top rotates synchronously, and the engine shaft is turned out.

Embodiment 3

[0035] A method for manufacturing an engine shaft, comprising the following steps:

[0036] Select carbon steel with a Young's modulus of 2, forge and smelt the carbon steel to achieve a yield strength of 2.

[0037] After heating to 150 degrees Celsius, quickly put it into ice water to cool.

[0038] After taking it out, burn it for 16 minutes, and then cool it naturally.

[0039] After cooling, put it into the furnace for melting, and add 15% microcrystalline cellulose, 13% ethylene oxide and 3% dry ice while melting.

[0040] After 16 minutes, the metal liquid was poured off and allowed to cool.

[0041] Then stretch the material to make it thicker.

[0042] Then put it on the jig of the lathe, the feed rate is 2mm / min, and at the same time, the top rotates synchronously, and the engine shaft is turned out.

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Abstract

A manufacturing method for an engine shaft comprises the following steps that firstly, carbon steel with the Young modulus being 2 is selected, forged and smelted, and the yield strength is 1-2. After the temperature being 100 DEG C to 200 DEG C is achieved through heating, the carbon steel is rapidly placed in ice water to be cooled and then is taken out to be burnt for 10 min to 20 min, and then natural cooling is carried out. After cooling, the carbon steel is placed in a smelting furnace to be smelted, and 10%-26% of microcrystalline cellulose, 10%-26% of ethylene oxide and 2%-6% of dry ice are added during smelting. After 10 min to 30 min, metal liquid is poured out, and cooling is carried out. Drawing and heading are carried out on materials. The materials are placed on a clamp of a lathe, the feed amount is 1 mm / min to 3 mm / min, meanwhile, a tip synchronously rotates, and the engine shaft is manufactured through turning. According to the engine shaft, a composite material is added into metal, the strength of the metal can be kept, the tenacity is improved, the engine shaft combines hardness with softness, and the better mechanical performance is achieved.

Description

technical field [0001] The invention belongs to the field of machinery, and in particular relates to a manufacturing method of an engine shaft. Background technique [0002] The engine is the heart of many mechanical equipment. The quality of the engine determines the life and quality of the equipment to a great extent. The engine shaft is blocked by a non-stop rotation, which is under great pressure. The quality of the engine shaft also affects the life It is very important, but the current engine shafts are mostly mechanical structures, and the overall life span is relatively short. Contents of the invention [0003] The purpose of the present invention is to provide a method for making an engine shaft. The engine shaft adopts the addition of composite materials in the metal, which can maintain the strength of the metal itself and increase the toughness of the engine shaft, so that the engine shaft can be both rigid and flexible to achieve better mechanical properties....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14C22C47/08
CPCB23P15/14C22C47/08F16C3/02
Inventor 贾丽英
Owner 贾丽英
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