连续热处理线开发框架锯条用钢工艺研究

doi:10.13228/j.boyuan.issn0449-749x.20220489

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Abstract Frame saw has been widely used in the stone processing industry. Steel for frame saw blade is an essential material for preparing frame saw and also a high value-added product in steel materials. The continuous quenching-tempering heat treatment equipment designed independently in China was used. It is planned to develop 75Cr1 high-strength and high-toughness heat-treated steel strip for 2.0 mm thin gauge frame saw blade,which is not used in the domestic and foreign markets at present,so as to improve the utilization rate of stone material. The austenitizing temperature of heating furnace,the melt temperature of Pb-Bi alloy and the tempering temperature were set in sequence on the continuous heat treatment line,and the effects of the three parameters on the microstructure and mechanical property of heat-treated steel strip were studied by using the material testing machine,Rockwell hardness tester,metallographic microscope and scanning electron microscope,to explore the optimal heat treatment process for producing high-performance frame saw blade material. The results show that the high-performance 75Cr1 heat-treated steel strip can be prepared with a thin gauge of 2 mm by martempering,when the austenitizing temperature is 930 ℃,the melt temperature of Pb-Bi alloy is 250-315 ℃,and the tempering temperature is 500-520 ℃. While,the yield strength is 1 157-1 241 MPa,the tensile strength is 1 275-1 368 MPa,the elongation is 8.8%-13.8%,the surface hardness is 39.5HRC-42.5HRC,the microstructure is tempered troostite+a small amount of bainite,and the grain size is extremely fine and uniform. By comparing the microstructure and mechanical property with the now available 3.0 mm thick gauge high-quality imported material from abroad, the developed 2.0 mm new thin gauge material can attain eqaul in quality of 3.0 mm imported material,and the 2.0 mm thin guage frame saw blade steel has been successfully developed,with superior comprehensive mechanical properties. The principle and parameter range of this continuous heat treatment are different from the traditional oil quenching and salt bath quenching. It is a new report and systematic study for heat treatment of 75Crl steel,which can provide process guidance for the development of this material.

Key words： steel for frame saw blade 75Cr1 continuous heat treatment line martempering Pb-Bi alloy melt

Received: 20 July 2022

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	Articles by authors
	ZENG Bin
	WANG Jing
	LIANG Liang
	LI Zhao-dong
	YONG Qi-long

Cite this article:

ZENG Bin,WANG Jing,LIANG Liang等. Study on production process of steel for frame saw blade developed by continuous heat treatment line[J]. Iron and Steel, 2023, 58(1): 161-169.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20220489 OR http://www.chinamet.cn/Jweb_gt/EN/Y2023/V58/I1/161

[1] 李仁德,胡欢,潘天浩,等. 超薄型金刚石框架锯条基体的研制[J]. 石材,2014(9):6.(LI Ren-de,HU Huan,PAN Tian-hao,et al. Preparation of super thin diamond frame saw blade matrix[J]. Stone,2014(9):6.)
[2] 张云才,李仁德,胡欢,等.金刚石框架锯条的研究、实践探索与应用[J]. 超硬材料工程,2018,30(6):52.(ZHANG Yun-cai,LI Ren-de,HU Huan,et al. Research,practical exploration and application of diamond gangsaw blades[J]. Super Hard Material Engineering,2018,30(6):52.)
[3] 荣先苗,殷子强,昃向博. 锯切大理石用金刚石框架锯条的选择和使用[J]. 石材,2019(8):25.(RONG Xian-miao,YIN Zi-qiang,ZE Xiang-bo. Selection and use of diamond frame saw blades for cutting marble[J]. Stone,2019(8):25.)
[4] 陈明昕,杨晓江,冯晓勇. Nb元素添加对75Cr1钢热变形行为的影响[J]. 中国冶金,2020,30(6):71.(CHEN Ming-xin, YANG Xiao-jiang,FENG Xiao-yong. Effect of niobium addition on phase transformation behavior of 75Cr1 steel[J]. China Metallurgy,2020,30(6):71.)
[5] 欧阳丛森. 金刚石框架锯锯条系统静动态特性及结构优化设计研究[D]. 济南:山东大学,2021.(OUYANG Cong-sen. Research on Static and Dynamic Characteristics and Structure Optimization Design of Diamond Frame Saw Blade System[D]. Jinan:Shandong University,2021.)
[6] 许东. 金刚石框架锯条的疲劳寿命分祈[D]. 济南:山东大学,2015.(XU Dong. Analysis on Fatigue Life of Diamond Frame Saw Blade[D]. Jinan:Shandong University,2015.)
[7] 孙蓬勃,张进生,王硕,等. 金刚石框架锯条变形特性研究[J]. 组合机床与自动化加工技术,2019(12):32.(SUN Peng-bo,ZHANG Jin-sheng,WANG Shuo,et al. Deformation characteristics of diamond frame saw blade[J]. Modular Machine Tool and Automatic Manufacturing Technique,2019(12):32.)
[8] 吴亚杰,周松波,吴开明. 高碳贝氏体钢的低温转变组织与性能[J]. 钢铁研究学报,2019,31(12):1058.(WU Ya-jie,ZHOU Song-bo,WU Kai-ming. Low temperature transformation microstructure and properties of high carbon bainitic steel[J]. Journal of Iron and Steel Research,2019,31(12):1058.)
[9] 刘庆锁,袁连杰,高斌,等. 奥氏体化温度对高碳含硅钢等温转变的影响[J]. 钢铁,2014,49(7):94.(LIU Qing-suo,YUAN Lian-jie,GAO Bin,et al. Effect of austenitizing temperature on the bainitic transformation behaviour in the high-carbon silicon steel[J]. Iron and Steel,2014,49(7):94.)
[10] 赵佳莉,张福成,于宝东,等. 70Si3MnCrMo钢中贝氏体及其回火稳定性[J]. 钢铁,2017,52(1):71.(ZHAO Jia-li,ZHANG Fu-cheng,YU Bao-dong,et al. Bainite microstructure and its tempering stability of 70Si3MnCrMo steel[J]. Iron and Steel,2017,52(1):71.)
[11] 孙国才,张宇,陈焕德. 磷含量和回火温度对弹簧钢组织和力学性能的影响[J]. 上海金属,2022,44(2):56.(SUN Guo-cai,ZHANG Yu,CHEN Huan-de. Effect of phosphorus content and tempering temperature on microstructure and mechanical properties of spring steel[J]. Shanghai Metals,2022,44(2):56.)
[12] 胡松涛,余万华,廉晓洁,等. 高碳合金钢75Cr1高温变形后相和组织的转变[J],特殊钢,2016,37(1):57.(HU Song-tao,YU Wan-hua,LIAN Xiao-jie,et al. Transformation of phases and structure in elevated-temperature deformed high carbon alloy steel 75Cr1[J]. Special Steel,2016,37(1):57.)
[13] 孙宜强,甘晓龙,汪水泽,等. 金刚石锯片基体用钢75Cr1的连续冷却转变曲线研究[J],热加工工艺,2019,48(4):92.(SUN Yi-qiang,GAN Xiao-long,WANG Shui-ze,et al. Study on continuous cooling transformation curves of 75Cr1 steel for diamond saw blades matrix[J]. Hot Working Technology,2019,48(4):92.)
[14] 张先菊,胡帅,赵荐伟,等. 国产75Cr1 锯片钢热处理工艺研究[J]. 热加工工艺,2021,50(8):124.(ZHANG Xian-ju,HU Shuai,ZHAO Jian-wei,et al. Study on heat treatment process of domestic 75Cr1 saw blade steel[J]. Hot Working Technology,2021,50(8):124.)
[15] 董绍明,胡建文,梁子玉. 锯片基材75Cr1 钢的热处理工艺及其组织性能[J]. 金属热处理,2021,46(9):193.(DONG Shao-ming,HU Jian-wen,LIANG Zi-yu. Heat treatment process of 75Cr1 steel for saw blade substrate and its microstructure and mechanical properties[J]. Heat Treatment of Metals,2021,46(9):193.)
[16] 王冬晨,李晓源,时捷,等. 淬火温度对高碳钢组织和断裂韧度的影响[J]. 钢铁研究学报,2018,30(3):229.(WANG Dong-chen,LI Xiao-yuan,SHI Jie,et al. Effect of quenching temperature on microstructure and fracture toughness of high carbon steel[J]. Journal of Iron and Steel Research,2018,30(3):229.)