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Manufacturing method for carbon steel guide wheel

A manufacturing method and technology of guide wheels, applied to components with teeth, belts/chains/gears, portable lifting devices, etc., can solve the problem of reducing the anti-crack expansion ability of guide wheels, adverse effects on safety performance, and decreased impact toughness, etc. problems, to achieve the effect of prolonging the effective dehydrogenation time, increasing the difficulty, and increasing the unevenness

Inactive Publication Date: 2017-12-19
JIANGSU SUFENG MECHANICAL DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The room temperature microstructure of conventional CL60 steel guide wheels is ferrite-pearlite. The remarkable characteristics of this steel are: the increase in strength and hardness will lead to a decrease in impact toughness, thereby reducing the internal crack growth resistance of the guide wheel. When the guide wheel When subjected to complex wheel-rail interaction forces during service, it will have an adverse effect on the safety performance of use

Method used

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Embodiment Construction

[0012] Through the description of the embodiments, the specific implementation manner of the present invention is further described in detail, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concept and technical solutions of the present invention.

[0013] The invention relates to a method for manufacturing a carbon steel guide wheel, which comprises:

[0014] First, the C-Mn carbon steel guide wheel billet with a carbon content in the range of 0.70% to 0.73% is subjected to a high-temperature heating process at 1270°C to 1290°C according to a conventional process; then, it is forged into a guide wheel workpiece through a conventional high-temperature forging and rolling process; To be precise, it is 600℃~650℃, and then the carbon steel guide wheel workpiece is heated, the heating temperature is 730℃~750℃, and the heating time is 30min~40min, so that the guide wheel undergoes partial austenite transformation; th...

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Abstract

The invention discloses a manufacturing method for a carbon steel guide wheel. The manufacturing method sequentially comprises the following steps that the high-temperature heating working procedure of 1,270 DEG C-1,290 DEG C, the forging and rolling working procedure, the isothermal working procedure of 550 DEG C-630 DEG C, the quenching heating working procedure of 830 DEG C-850 DEG C and the tempering working procedure of 500 DEG C+ / -10 DEG C are carried out, then, a carbon steel guide wheel workpiece is heated, wherein the heating temperature ranges from 730 DEG C to 750 DEG C and the heating time ranges from 30 min to 40 min, partial austenitic transformation occurs for the guide wheel, then the carbon steel guide wheel workpiece is cooled to 600 DEG C-630 DEG C, and the isothermal working procedure is carried out. The carbon steel guide wheel comprises, by mass, 0.70%-0.83% of C, 0.15%-0.30% of Si, 0.75%-0.85% of Mn, 0.025% or less of P and a trace of other material compositions.

Description

technical field [0001] The invention relates to a carbon steel guide wheel, in particular to a method for manufacturing a carbon steel guide wheel. Background technique [0002] The guide pulley is the reaction element of the hydraulic torque converter. It is a pulley used to guide the drive belt through obstacles or change the direction of the drive belt. It is located between the turbine and the pump wheel. A pulley used to guide the drive belt through obstacles or to change the direction of the drive belt. Located between the turbine and the pump wheel, it is the reaction element of the hydraulic torque converter, which is fixed on the guide wheel shaft or the guide wheel sleeve in one direction through the one-way clutch. [0003] The room temperature microstructure of conventional CL60 steel guide wheels is ferrite-pearlite. The remarkable characteristics of this steel are: the increase in strength and hardness will lead to a decrease in impact toughness, thereby reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D8/00C21D3/06C21D1/18C21D6/00F16H55/36
CPCC21D8/005C21D1/18C21D3/06C21D6/005C21D6/008C21D2211/001C21D2211/009F16H55/36
Inventor 金传良厉锋
Owner JIANGSU SUFENG MECHANICAL DEV CO LTD