Research and Application of Control Rolling and Cooling Technology in 49MnVS3 Non-Quenched and Tempered Steel for Crankshaft

刘献达; 郝彦英; 刘运娜

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Research and Application of Control Rolling and Cooling Technology in 49MnVS3 Non-Quenched and Tempered Steel for Crankshaft

更新时间：2026-01-21

- Research and Application of Control Rolling and Cooling Technology in 49MnVS3 Non-Quenched and Tempered Steel for Crankshaft
- Special Steel Vol. 40, Issue 4, Pages: 31-33(2019)
- 作者机构：
  
  石家庄钢铁有限责任公司技术中心,石家庄,050031
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：28 February 2019，
  
  Online First：15 May 2022，
  
  Published：15 May 2019
- 稿件说明：
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刘献达, 郝彦英, 刘运娜. Research and Application of Control Rolling and Cooling Technology in 49MnVS3 Non-Quenched and Tempered Steel for Crankshaft[J]. Special Steel, 2019, 40(4): 31-33.
DOI：

刘献达, 郝彦英, 刘运娜. Research and Application of Control Rolling and Cooling Technology in 49MnVS3 Non-Quenched and Tempered Steel for Crankshaft[J]. Special Steel, 2019, 40(4): 31-33. DOI：

摘要

49MnVS3非调质钢(/%:0.47C

0.39Si

0.90Mn

0.016P

0.050S

0.22Cr

0.09V

0.015Ti

0.011Al

0.02Ni)的生产流程为铁水预处理-60t顶底复吹转炉-LF处理-VD真空脱气-220 mm×300 mm坯连铸-控轧控冷。研究了控轧控冷工艺对49MnVS3非调质钢组织和性能的影响。φ110 mm轧材试验工艺参数:加热温度1150～1250℃、开轧温度1 0500℃、终轧温度850℃、轧后冷却速度70℃/min、冷却开始温度850℃和终止温度500℃。结果表明

试验炉次粒度提高高.5～1.0级

带状组织减轻轻0.5～1.5级

硬度、强度及塑韧性均有所提升

获得良好的强韧性匹配。

Abstract

The production flowsheet of non-quenched and tempered steel 49MnVS3 (/% ：0.47C

0.39Si

0.90Mn

0.016P

0.050S

0. 22Cr

0.09V

0.015Ti

0.011Al

0.02Ni) is pretreated hot-metal-60 t top and bottom combined brown converter-LF-VD-220 mm x300 mm bloom casting-contronled rolling and cooling

study the effect of contronled rolling and cooling process on microstructure and properties of non-quenched and tempered steel 49MnVS3. Test parameters of φ110 mm rolled products: heating temperature of 1150 - 1250℃

start rolling temperature 1050℃ and finishing temperature 850 ℃

70 Y/min cooling speed after rolling

cooling start temperature of 850 ℃

and the end temperature 500 ℃.Ilie results showed that the grain size of the test furnace was improved by 0.5 ~ 1.0 and the banded structure was reduced by 0.5 ~ 1.5

the hardness

strength and plasticity are improved

and a good match of strength and toughness is obtained.

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