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一种直径150-300mm轧材正火热处理的冷却方法

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摘要

本发明一种直径150‑300mm轧材正火热处理的冷却方法，轧材在加热炉加热结束后，先入水进行水冷，水冷时间为10‑130s，出水后轧材中间表面最高返温温度为550‑680℃；水冷后将轧材进行风冷。本发明通过将轧材短时入静水上下串动进行水冷，同时水冷时间非常短，既能提高轧材强度、获得均匀的冲击韧性，又不会因为过快的冷却速度改变平衡组织，以满足对晶粒度评定。而单侧鼓风不会形成对流风向，因而削弱鼓风效果。

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公开/公告号CN113265514A

专利类型发明专利
公开/公告日2021-08-17

原文格式PDF
申请/专利权人石钢京诚装备技术有限公司;
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申请/专利号CN202110373686.9
发明设计人褚岩;刘继红;孙雪翠;杨万彪;郭宇;张杨;
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申请日2021-04-07
分类号C21D1/28(20060101);C21D6/00(20060101);C22C38/02(20060101);C22C38/04(20060101);C22C38/06(20060101);C22C38/12(20060101);
代理机构13108 石家庄冀科专利商标事务所有限公司;
代理人赵幸
地址 115004 辽宁省营口市沿海产业基地管委会新联大街东1号
入库时间 2023-06-19 12:16:29

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法律状态公告日

法律状态信息

法律状态
2023-07-07

发明专利申请公布后的驳回 IPC(主分类):C21D 1/28 专利申请号:2021103736869 申请公布日:20210817

发明专利申请公布后的驳回

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1. 一种直径150-300mm轧材正火热处理的冷却方法 [P] . 中国专利： CN113265514A . 2021-08-17
2. 用于大型铸锻件正火热处理的水雾冷却方法 [P] . 中国专利： CN103643001A . 2014-03-19
3. IMPROVED METHOD FOR PRODUCING A COLD REDUCED LOW CARBON STEEL BELT AND LAMINAR MATERIAL. "," The present invention relates to an improved method for producing a low carbon steel strip and sheet material, cold reduced; Said method comprises the steps that consist of: providing a piece of low carbon steel, totally deoxidized and vacuum degassed; hot rolling until an intermediate thickness is obtained; remove the scab by hot rolling; reduce in cold until the final thickness is achieved and recognize; This method is characterized in that the steel essentially contains,in percentage by weight: from 0.02 to 0.10 of carbon; 0.1 to 0.9 manganese; 0.02 to 0.18 for columbium, residual phosphorous, sulfur, silicon, oxygen, and nitrogen; 0.01 to 0.08 aluminum, the rest consisting essentially of iron, except for incidental impurities; the columbium is completely materially combined; the hot rolled material is cooled to a temperature not higher than 705ºc .;the hot-rolled material is cold-reduced to [P] . MX3414E . 1980-11-11

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4. A method for Manufacturing a Cooling plate of a pyrometallurgical reactor, which is made of a metal with high thermal conductivity.Because it increases the heat transfer capability of the cooling element is increased without increasing the diameter or length of the flow Channel; and the Cooling plate. [P] . CL1999002987A1 . 2000-11-21

机译：一种由高热导率的金属制成的火法冶金反应器冷却板的制造方法。由于增加了冷却元件的传热能力，而没有增加流道的直径或长度，从而提高了冷却元件的传热能力。和冷却板。
5. Method and apparatus for Heat Treatment of Steel rods, the present Invention relates to a method for direct Heat Treatment of steel rod with a medium to high CoalIncludes: transport the hot rolled rod on a carrier in the form of a sequence of non Concentric Rings and subjecting Said Rod controlled cooling in a CoolingR for most of the austenite in the whole length of the Rod is processed into a substantially uniformly Fine pearlite structure and maintain the sequence of rings; nConcentric Rod or 450 - 630 degrees C.For a period of 60 to 300 seconds, with the passage of each Ring being smaller than in the first stage to cause the pearlitic Transformation of austenite of any residue. [P] . MX164925B . 1992-10-02

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