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| 高碳钢50-2冲压鞋包头开裂原因分析与控制 | |
| 引用本文： | 张利民,朱立光,张彩军,肖鹏程,刘增勋.高碳钢50-2冲压鞋包头开裂原因分析与控制[J].中国冶金,2021,31(2):44-49. |
| 作者姓名： | 张利民 朱立光 张彩军 肖鹏程 刘增勋 |
| 作者单位： | 1.华北理工大学冶金与能源学院, 河北 唐山 063300; 2.河北省高品质钢连铸工程技术研究中心, 河北 唐山 063300; 3.河北科技大学材料科学与工程学院, 河北 石家庄 050018 |
| 基金项目： | 河北省自然科学基金资助项目(CXZZBS2020130) |
| 摘 要： | 高碳钢50-2热轧板经罩式退火炉退火后,在冲压鞋包头过程中出现了严重开裂的现象。利用光电直读光谱仪、NeophotⅢ型光学显微镜、TCH600氧氮分析仪、洛氏硬度测量法(HR)中的B级标尺对缺陷样品化学成分、组织性能进行了深入的研究。结果表明,冷轧退火板氮含量高、退火均热保温时间短是产生冲压鞋包头开裂的主要原因。通过优化炼钢生产工艺、退火工艺,使冲压开裂缺陷率大幅下降,产品质量最终满足生产要求。 |
| 关 键 词： | 高碳钢 50-2 罩式退火炉 冲压开裂 优化 |
Analysis and control of high carbon steel 50-2 stamping toe cap cracking |
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| ZHANG Li-min,ZHU Li-guang,ZHANG Cai-jun,XIAO Peng-cheng,LIU Zeng-xun.Analysis and control of high carbon steel 50-2 stamping toe cap cracking[J].China Metallurgy,2021,31(2):44-49. | |
| Authors: | ZHANG Li-min ZHU Li-guang ZHANG Cai-jun XIAO Peng-cheng LIU Zeng-xun |
| Affiliation: | 1. College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063300, Hebei, China; 2. Hebei Engineering Research Center of High Quality Steel Continuous Casting, Tangshan 063300, Hebei, China; 3. College of Materials Scienceand Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, Hebei, China |
| Abstract: | The high carbon steel 50-2 was cracked seriously during the stamping process after annealing in a bell-type annealing furnace. Using photoelectric direct reading spectrometer, Neophot Ⅲ type optical microscope, TCH600 nitrogen oxygen analyzer, rockwell hardness measurement method (HR) of class B scale on the defect sample chemical composition, organization performance carried on the thorough research. The results show that high nitrogen content and short soaking time of anneal are the main causes of stamping toe cap cracking. By optimizing steelmaking process and annealing process, the cracking defect rate of stamping has been greatly reduced, and the product quality has finally met the production requirements. |
| Keywords: | high carbon steel 50-2 bell-type annealing furnace punching cracking optimization |
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