CN102409259A - 刹车钳用合金钢及其制备方法 - Google Patents
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Abstract
本发明涉及一种刹车钳用合金钢及其制备方法,该合金钢的重量百分比是:0.32-0.34%的碳,0.24-0.31%的硅,0.63-0.67%的锰,0.001%的磷,0.008%的硫,0.19-0.22%的铬,0.04-0.05%的镍,0.006-0.009%的钼,0.027-0.028%的钴,0.0001%的矾,0.01-0.02%的铝,0.125-0.13%的钨,0.0001%的钛,0.002%的硼,0.002-0.005%的铌,余量为铁。通过中频感应炉熔炼制备合金钢;将合金钢进行正火和等温淬火处理。通过正火过程获取大量的珠光基体,并通过等温淬火,使合金钢的奥氏体转变成下贝氏体组织,使得合金硬度、耐磨性能及表面耐热性能均得到很大的提高。
Description
技术领域
本发明涉及金属材料,尤其是涉及刹车钳用合金钢及其制备方法。
背景技术
刹车钳作为刹车盘配套零件,不仅在结构强度与功能上有较高的要求,同时在机械加工上同样重要,这样的要求不仅是满足刹车钳功能使用上的基本条件,同时也是安全可靠延长使用寿命的保障。
现有技术中,生产刹车钳的钢材为普通的中低含量合金钢,因刹车钳在使用功能上是频繁的运动部件,磨损率很高,更换频繁,增加了维护成本。
寻找到一种提高硬度和耐磨性能,同时零件表面耐热性能高的中低含量的合金钢就显的非常重要。发明人依靠在本领域的多年实践和理论经验,提出一种全新的中低合金钢配方,该配方能很好的解决了现有生产刹车钳钢材的缺点。
发明内容
本发明的目的是提供一种能够克服现有生产刹车钳钢材中硬度、耐磨性能及表面耐热性能不足的中低合金钢。
本发明目的是通过以下技术方案实现的:
刹车钳用合金钢,该合金钢的重量百分比是:0.32-0.34%的碳,0.24-0.31%的硅,0.63-0.67%的锰,0.001%的磷,0.008%的硫,0.19-0.22%的铬,0.04-0.05%的镍,0.006-0.009%的钼,0.027-0.028%的钴,0.0001%的矾,0.01-0.02%的铝,0.125-0.13%的钨,0.0001%的钛,0.002%的硼,0.002-0.005%的铌,余量为铁。
所述刹车用合金钢的制备方法,包括以下步骤:
1)按照重量百分比为0.32-0.34%的碳,0.24-0.31%的硅,0.63-0.67%的锰,0.001%的磷,0.008%的硫,0.19-0.22%的铬,0.04-0.05%的镍,0.006-0.009%的钼,0.027-0.028%的钴,0.0001%的矾,0.01-0.02%的铝,0.125-0.13%的钨,0.0001%的钛,0.002%的硼,0.002-0.005%的铌,余量为铁进行配料;
2)通过中频感应炉熔炼制备合金钢;
3)将合金钢进行正火和等温淬火处理。
上述合金钢制备方法,其中合金钢通过正火和等温淬火处理,等温淬火处理采用的是硝酸盐盐浴等温淬火;硝酸盐为硝酸钾和硝酸钠以重量比为1∶1的比例;采用360±20℃等温淬火处理。这样一方面获得较高的珠光体基体,细化组织,提高材料的硬度和耐磨性能;另一方面,通过长期保持在下贝氏体转变区的等温淬火,使合金实现奥氏体的等温转变,获得下贝氏体组织。
本发明的有益效果是:
通过正火过程获取大量的珠光基体,并通过选择360±20℃的等温淬火,使合金钢的奥氏体转变成下贝氏体组织,使得合金硬度、耐磨性能及表面耐热性能均得到很大的提高。
具体实施方式
以下通过具体实施例来解释本发明,应当理解的是,本发明的具体实施例仅能用来解释本发明而不能用来解释为对本发明的限制。
实施例一
刹车钳用合金钢,该合金钢的重量百分比是:0.34%的碳,0.24%的硅,0.63%的锰,0.001%的磷,0.008%的硫,0.19%的铬,0.04%的镍,0.006%的钼,0.027%的钴,0.0001%的矾,0.01%的铝,0.125%的钨,0.0001%的钛,0.002%的硼,0.002%的铌,余量为铁。
所述刹车钳用合金钢的制备方法,包括以下步骤:
1)按照重量百分比:0.34%的碳,0.24%的硅,0.63%的锰,0.001%的磷,0.008%的硫,0.19%的铬,0.04%的镍,0.006%的钼,0.027%的钴,0.0001%的矾,0.01%的铝,0.125%的钨,0.0001%的钛,0.002%的硼,0.002%的铌,余量为铁进行配料;
2)通过中频感应炉熔炼制备合金钢;
3)将合金钢进行正火和等温淬火处理。
上述合金钢制备方法,其中合金钢通过正火和等温淬火处理,采用360±20℃等温淬火处理。这样一方面获得较高的珠光体基体,细化组织,提高材料的硬度和耐磨性能;另一方面,通过长期保持在下贝氏体转变区的等温淬火,使合金实现奥氏体的等温转变,获得下贝氏体组织。
对得到的铸态合金钢试样做金相组织观察,发现其组织为珠光体组织和下贝氏组织。
对得到的合金进行硬度检测,硬度检测值HRC57。
在本发明的以下实施例中,对得到的铸态合金钢试样做金相组织观察,均发现其组织为珠光体组织和下贝氏组织。
对得到的合金进行硬度检测,硬度检测值HRC52-58。
在本发明的以下实施例中,刹车钳的制备方法均相同,所不同的仅是刹车钳用合金钢的各元素的组成,因此在以下的实施例中,仅描述合金钢的各元素的的重量百分比。
实施例二
刹车钳用合金钢,该合金钢的重量百分比是:0.33%的碳,0.28%的硅,0.65%的锰,0.001%的磷,0.008%的硫,0.22%的铬,0.05%的镍,0.007%的钼,0.028%的钴,0.0001%的矾,0.02%的铝,0.13%的钨,0.0001%的钛,0.002%的硼,0.003%的铌,余量为铁。
对得到的合金进行硬度检测,硬度检测值HRC56。
该实施例为本发明的最佳实施例。
实施例三
刹车钳用合金钢,该合金钢的重量百分比是:0.32%的碳,0.31%的硅,0.67%的锰,0.001%的磷,0.008%的硫,0.21%的铬,0.05%的镍,0.008%的钼,0.028%的钴,0.0001%的矾,0.01%的铝,0.13%的钨,0.0001%的钛,0.002%的硼,0.004%的铌,余量为铁。
对得到的合金进行硬度检测,硬度检测值HRC58。
实施例四
刹车钳用合金钢,该合金钢的重量百分比是:0.34%的碳,0.25%的硅,0.64%的锰,0.001%的磷,0.008%的硫,0.20%的铬,0.04%的镍,0.009%的钼,0.028%的钴,0.0001%的矾,0.01%的铝,0.125%的钨,0.0001%的钛,0.002%的硼,0.005%的铌,余量为铁。
对得到的合金进行硬度检测,硬度检测值HRC58。
实施例五
刹车钳用合金钢,该合金钢的重量百分比是:0.33%的碳,0.30%的硅,0.67%的锰,0.001%的磷,0.008%的硫,0.19%的铬,0.04%的镍,0.008%的钼,0.027%的钴,0.0001%的矾,0.02%的铝,0.13%的钨,0.0001%的钛,0.002%的硼,0.004%的铌,余量为铁。
对得到的合金进行硬度检测,硬度检测值HRC52。
本发明不局限于上述特定实施例,在不背离本发明的情况下,本领域技术人员可根据本发明作出各种相应改变,但这些相应改变都应属于本发明所要求保护范围之内。
Claims (5)
1.一种刹车钳用合金钢,其特征在于,该合金钢的重量百分比是:0.32-0.34%的碳,0.24-0.31%的硅,0.63-0.67%的锰,0.001%的磷,0.008%的硫,0.19-0.22%的铬,0.04-0.05%的镍,0.006-0.009%的钼,0.027-0.028%的钴,0.0001%的矾,0.01-0.02%的铝,0.125-0.13%的钨,0.0001%的钛,0.002%的硼,0.002-0.005%的铌,余量为铁。
2.根据权利要求1所述的刹车钳用合金钢,其特征在于,该合金钢的重量百分比是:0.33%的碳,0.28%的硅,0.65%的锰,0.001%的磷,0.008%的硫,0.22%的铬,0.05%的镍,0.007%的钼,0.028%的钴,0.0001%的矾,0.02%的铝,0.13%的钨,0.0001%的钛,0.002%的硼,0.003%的铌,余量为铁。
3.一种刹车钳用合金钢的制备方法,包括以下步骤:
1)按照重量百分比:0.32-0.34%的碳,0.24-0.31%的硅,0.63-0.67%的锰,0.001%的磷,0.008%的硫,0.19-0.22%的铬,0.04-0.05%的镍,0.006-0.009%的钼,0.027-0.028%的钴,0.0001%的矾,0.01-0.02%的铝,0.125-0.13%的钨,0.0001%的钛,0.002%的硼,0.002-0.005%的铌,余量为铁进行配料;
2)通过中频感应炉熔炼制备合金钢;
3)将合金钢进行正火和等温淬火处理。
4.根据权利要求3所述的刹车钳用合金钢的制备方法,其特征在于,所述等温淬火处理,采用360±20℃等温淬火处理。
5.根据权利要求3或4所述的刹车钳用合金钢的制备方法,其特征在于,所述的等温淬火处理采用的是硝酸盐盐浴等温淬火。
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103014547A (zh) * | 2012-11-26 | 2013-04-03 | 姚芙蓉 | 一种合金钢制备方法 |
CN104195471A (zh) * | 2014-07-29 | 2014-12-10 | 锐展(铜陵)科技有限公司 | 一种高强度高韧性的合金钢材料及其制造方法 |
CN104313490A (zh) * | 2014-10-20 | 2015-01-28 | 张超 | 一种合金钢材料 |
CN104313511A (zh) * | 2014-10-20 | 2015-01-28 | 郭芙 | 一种耐磨性能高的合金及其制备方法 |
CN105316602A (zh) * | 2015-11-04 | 2016-02-10 | 合肥海源机械有限公司 | 一种高强度叉车门架制备方法 |
CN106256915A (zh) * | 2015-06-16 | 2016-12-28 | 现代自动车株式会社 | 用于高韧度等速万向节外轮的合金钢及其制造方法 |
CN108374124A (zh) * | 2018-03-29 | 2018-08-07 | 冯满 | 一种合金钢 |
CN111304556A (zh) * | 2020-04-03 | 2020-06-19 | 北京机科国创轻量化科学研究院有限公司 | 一种含mc、mx型析出相高速列车制动盘铸钢及制备方法 |
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CN101435054A (zh) * | 2007-11-13 | 2009-05-20 | 日新制钢株式会社 | 汽车排气通路部件用铁素体不锈钢材料 |
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CN1685074A (zh) * | 2002-09-27 | 2005-10-19 | Cdp印地冶炼厂有限责任公司 | 钢组合物和用锻模锻造的零件 |
CN101435054A (zh) * | 2007-11-13 | 2009-05-20 | 日新制钢株式会社 | 汽车排气通路部件用铁素体不锈钢材料 |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103014547A (zh) * | 2012-11-26 | 2013-04-03 | 姚芙蓉 | 一种合金钢制备方法 |
CN104195471A (zh) * | 2014-07-29 | 2014-12-10 | 锐展(铜陵)科技有限公司 | 一种高强度高韧性的合金钢材料及其制造方法 |
CN104313490A (zh) * | 2014-10-20 | 2015-01-28 | 张超 | 一种合金钢材料 |
CN104313511A (zh) * | 2014-10-20 | 2015-01-28 | 郭芙 | 一种耐磨性能高的合金及其制备方法 |
CN106256915A (zh) * | 2015-06-16 | 2016-12-28 | 现代自动车株式会社 | 用于高韧度等速万向节外轮的合金钢及其制造方法 |
CN105316602A (zh) * | 2015-11-04 | 2016-02-10 | 合肥海源机械有限公司 | 一种高强度叉车门架制备方法 |
CN108374124A (zh) * | 2018-03-29 | 2018-08-07 | 冯满 | 一种合金钢 |
CN111304556A (zh) * | 2020-04-03 | 2020-06-19 | 北京机科国创轻量化科学研究院有限公司 | 一种含mc、mx型析出相高速列车制动盘铸钢及制备方法 |
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