Low-self-noise special steel and machining method thereof

A low self-noise, processing method technology, applied in metal material coating process, coating, solid diffusion coating and other directions, can solve the problems of vibration and noise, achieve low self-noise, high wear resistance and high temperature resistance The effect of fine and uniform grains

Inactive Publication Date: 2016-09-21
江苏金基特钢有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of the gear mechanism is the high vibration and noise

Method used

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  • Low-self-noise special steel and machining method thereof
  • Low-self-noise special steel and machining method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The composition of special steel is: carbon 0.01%, chromium 13%, nickel 4%, copper 0.1%, magnesium 0.4%, manganese 1%, and the rest is iron.

[0024] The processing method is as follows: according to the above-mentioned ratio, the raw materials are proportioned, mixed and cut.

[0025] The forging temperature is 1530-1580°C, the heat treatment diffusion annealing temperature is 1100-1150°C for 4 hours, and the solution treatment temperature is 1050-1150°C for 2 hours.

[0026] The normalizing temperature is 950℃~970℃. Processing, and then carburizing, the carburizing temperature is 920°C, the time is 6h, and acetone is used as the carburizing agent.

[0027] Pre-cool to 870-880°C, then oil-cooled and quenched to room temperature. Finally temper at 200°C for 2h. The product is obtained after surface treatment. Tested and tested, the hardness of the prepared special steel is 217HBW.

Embodiment 2

[0029] The composition of special steel is: carbon 0.03%, chromium 17%, nickel 8%, copper 0.12%, magnesium 0.5%, manganese 1.2%, and the rest is iron.

[0030] The processing method is as follows: according to the above-mentioned ratio, the raw materials are proportioned, mixed and cut.

[0031] The forging temperature is 1530-1580°C, the heat treatment diffusion annealing temperature is 1100-1150°C for 6 hours, and the solution treatment temperature is 1050-1150°C for 2 hours.

[0032] The normalizing temperature is 950℃~970℃. Processing, and then carburizing, the carburizing temperature is 920°C, the time is 8h, and acetone is used as the carburizing agent.

[0033] Pre-cool to 870-880°C, then oil-cooled and quenched to room temperature. Finally temper at 200°C for 3h. The product is obtained after surface treatment. Tested and tested, the hardness of the prepared special steel is 216HBW.

Embodiment 3

[0035] The composition of special steel is: carbon 0.02%, chromium 16%, nickel 6%, copper 0.1%, magnesium 0.45%, manganese 1.1%, and the rest is iron.

[0036] The processing method is as follows: according to the above-mentioned ratio, the raw materials are proportioned, mixed and cut.

[0037] The forging temperature is 1530-1580°C, the heat treatment diffusion annealing temperature is 1100-1150°C for 6 hours, and the solution treatment temperature is 1050-1150°C for 2 hours.

[0038] The normalizing temperature is 950℃~970℃. Processing, and then carburizing, the carburizing temperature is 920°C, the time is 6h, and acetone is used as the carburizing agent.

[0039] Pre-cool to 870-880°C, then oil-cooled and quenched to room temperature. Finally temper at 200°C for 3h. The product is obtained after surface treatment. Tested and tested, the hardness of the prepared special steel is 218HBW.

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Abstract

The invention provides low-self-noise special steel. The low-self-noise special steel comprises, by mass, 0.01%-0.03% of carbon, 13%-17% of chrome, 7%-8% of nickel, 0.1%-0.12% of copper, 0.4%-0.5% of magnesium, 0.1%-0.12% of manganese and the balance iron. The special steel provided by the invention can be applied to equipment parts resistant to nitric acid corrosion, cold phosphoric acid corrosion, organic acid corrosion, salt solution corrosion and alkali solution corrosion. The category of alloy materials is increased, and the proportion components of all the material elements are adjusted; the nickel, the chrome, the copper, the magnesium, the manganese and the like are added into the prepared material, so that the special steel contains the nickel, the chrome, the copper, the magnesium, the manganese and other elements which are all reasonable in proportion; thus, the abrasion resistance and the corrosion resistance of the special steel are greatly improved, the special steel is easy to machine and form and has certain vibration reducing performance, and the self noise is low; and the problems that the parts are prone to be abraded and rusted are solved, and the service life of the special steel is prolonged.

Description

technical field [0001] The invention belongs to the technical field of metallurgy and relates to a special steel, in particular to a wear-resistant and corrosion-resistant special steel and a processing method thereof. Background technique [0002] Special steel is also called alloy steel. Adding one or several alloy elements in an appropriate amount to carbon steel changes the structure of the steel, so that the steel has various special properties. [0003] There are many types of alloy steel, usually divided into low alloy steel (content <5%), medium alloy steel (content 5% ~ 10%), high alloy steel (content >10%) according to the content of alloy elements; divided into high quality according to the quality Alloy steel, special alloy steel; according to characteristics and uses, it is divided into alloy structural steel, stainless steel, acid-resistant steel, wear-resistant steel, heat-resistant steel, alloy tool steel, rolling bearing steel, alloy spring steel and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/42C22C38/04C22C38/48C21D8/00C21D1/28C21D1/18C21D6/00C23C8/22
CPCC22C38/42C21D1/18C21D1/28C21D6/004C21D8/00C22C38/002C22C38/04C22C38/48C23C8/22
Inventor 张斌
Owner 江苏金基特钢有限公司
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