基本信息:
- 专利标题： Method for manufacturing chromium-based stainless-steel reinforcing bar
- 专利标题（中）：用于制造基于铬的不锈钢加固棒的方法
- 申请号：JP2009176378 申请日：2009-07-29
- 公开(公告)号：JP2011026686A 公开(公告)日：2011-02-10
- 发明人： GOTO MANKEI , MATSUURA KOTARO , NAKAGAWA HIDEKI
- 申请人： Aichi Steel Works Ltd , 愛知製鋼株式会社
- 专利权人： Aichi Steel Works Ltd,愛知製鋼株式会社
- 当前专利权人： Aichi Steel Works Ltd,愛知製鋼株式会社
- 优先权： JP2009176378 2009-07-29
- 主分类号： C21D9/52
- IPC分类号： C21D9/52 ; C21D1/26 ; C21D6/00 ; C22C38/00 ; C22C38/40
摘要：
PROBLEM TO BE SOLVED: To provide a method for manufacturing a chromium-based stainless-steel reinforcing bar, which can stably and easily manufacture the reinforcing bar so as to enter an aimed strength classification.
SOLUTION: The method for manufacturing the chromium-based stainless-steel reinforcing bar includes: preparing a steel material including, by mass%, 0.15% or less C, 1.00% or less Si, 1.00% or less Mn, 0.040% or less P, 0.030% or less S, 0.60% or less Ni, 11.0-13.5% Cr, 0.15% or less N and the balance Fe with unavoidable impurities; hot-rolling the steel material; and annealing the hot-rolled material at a temperature of 600°C or higher and in such a condition that a tempering parameter of T(20+logt)/1,000 (T is annealing temperature (K), t is annealing period of time (hr) and log is a common logarithm) is in a range of 17.0-23.0.
COPYRIGHT: (C)2011,JPO&INPIT
摘要（中）：
SOLUTION: The method for manufacturing the chromium-based stainless-steel reinforcing bar includes: preparing a steel material including, by mass%, 0.15% or less C, 1.00% or less Si, 1.00% or less Mn, 0.040% or less P, 0.030% or less S, 0.60% or less Ni, 11.0-13.5% Cr, 0.15% or less N and the balance Fe with unavoidable impurities; hot-rolling the steel material; and annealing the hot-rolled material at a temperature of 600°C or higher and in such a condition that a tempering parameter of T(20+logt)/1,000 (T is annealing temperature (K), t is annealing period of time (hr) and log is a common logarithm) is in a range of 17.0-23.0.
COPYRIGHT: (C)2011,JPO&INPIT
解决的问题：提供一种可以稳定且容易地制造钢筋的铬基不锈钢钢筋的制造方法，以进入目标强度分级。 解决方案：用于制造铬基不锈钢钢筋的方法包括：制备钢材，以质量％计含有0.15％以下的C，1.00％以下的Si，1.00％以下的Mn，0.040％ 或更小的P，0.030％以下的S，0.60％以下的Ni，11.0〜13.5％的Cr，0.15％以下的N，余量为Fe的不可避免的杂质; 热轧钢材; 在600℃以上的温度下退火，在回火参数T（20 + logt）/ 1000（T为退火温度（K））的条件下退火，t为退火时间 hr），log为常用对数）在17.0-23.0的范围内。 版权所有（C）2011，JPO＆INPIT
信息查询:
EspacenetIPC结构图谱:
| C | 化学；冶金 |
| --C21 | 铁的冶金 |
| ----C21D | 改变黑色金属的物理结构；黑色或有色金属或合金热处理用的一般设备；通过脱碳、回火或其他处理使金属具有韧性 |
| ------C21D9/00 | 热处理，例如适合于特殊产品的退火、硬化、淬火、回火；所用的炉子 |
| --------C21D9/52 | .用于线材；带材 |