CN111423817A - 一种铸铁制品专用的气体qpq耦合剂及其制备方法 - Google Patents
一种铸铁制品专用的气体qpq耦合剂及其制备方法 Download PDFInfo
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- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
- C09D191/005—Drying oils
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
本发明公开了一种铸铁制品专用的气体QPQ耦合剂及其制备方法,涉及QPQ领域,其特征在于,包括以下原料:蜡源成膜剂、渗透剂、固化剂。和包括以下步骤:步骤一:将蜡源加热融化成液态,过滤取溶液,备用;步骤二:将渗透剂加入到液态的蜡源中,搅拌均匀形成混合溶液,备用;步骤三:将成膜剂和固化剂加入到步骤二得到的混合溶液中,再次高速搅拌均匀,备用;步骤四:将步骤三得到的混合溶液再次过滤,将过滤后的溶液脱气,冷却得到成品。本发明制备的耦合剂涂与氮化出炉后的铸铁制品表面,可以利用工件本身的余热进行热浴,使其浸入型腔内部及表面,从而达到极佳的防腐防锈效果。
Description
技术领域
本发明涉及QPQ领域,尤其是一种铸铁制品专用的气体QPQ耦合剂及其制备方法。
背景技术
Quench-Polish-Quench(QPQ处理),是一种氧氮化技术,其工艺过程包含预热、氮化、氧化、抛光等几个工序。QPQ技术将黑色金属零件放入两种性质不同的盐浴中,通过多种元素渗入金属表面形成复合渗层,从而达到使零件表面改性的目的。QPQ技术有以下优点:
1、良好的耐磨性、耐疲劳性能
该工艺能极大地提高各种黑色金属零件表面的硬度和耐磨性,降低摩擦系数。产品经过QPQ处理后,耐磨性比常规淬火、高频淬火高16倍以上,比20#钢渗碳淬火高9倍以上,比镀硬铬和离子氮化高2倍以上。
疲劳试验表明:该工艺可使中碳钢的疲劳强度提高40%以上,比离子氮化,气体氮化效果均好。该工艺特别适合于形状复杂的零件,解决技术关键,让变形难题迎刃而解。
2、良好的抗腐蚀性能
对几种不同材料、不同工艺处理的样品按同样的试验条件,按ASTMBll7标准进行了连续喷雾试验,盐雾试验温度35±2℃,相对湿度>95%,5%NaCL水溶液喷雾。试验结果表明,经QPQ处理后的零件抗蚀性是1Crl8Ni9Ti不锈钢的5倍,是镀硬铬的70倍,是发黑的280倍。
3、产品处理以后变形小
工件经QPQ处理处理之后几乎没有变形产生,可以有效的解决常规热处理方法难以解决的硬化变形难题。例如:尺寸为510×460×1.5mm的2Cr13不锈钢薄板经QPQ处理之后,表面硬大于HRC60,不平度小于0.5mm。目前,QPQ技术在众多得轴类零件、细长杆件上应用得非常成功,有效的解决了一直以来存在的热处理硬化和产品变形的矛盾。
4、可以代替多道热处理工序和防腐蚀处理工序,时间周期短
工件经QPQ处理后,在提高其硬度和耐磨性的基础上同时提高其抗腐蚀能力,并且形成黑色、漂亮的外观,可以代替常规的淬火一回火一发黑(镀铬)等多道工序,缩短生产周期,降低生产成本。大量的生产数据表明,QPQ处理与渗碳淬火相比可以节能50%,比镀硬铬节约成本30%,性价比高。
5、无公害水平高、无环境污染
QPQ处理工艺过程经有关环保部门检测鉴定,并经全国各地用户的实际使用证明,各种有害物质排放量均低于国家排放标准允许值。由于技术先进,重量稳定,QPQ技术应用的产品有数百种之多,已在全国各地建立了多条生产线。
6、QPQ技术适用材料的范围广泛
该工艺对所有黑色金属材料均适用,从纯铁、低碳钢、结构钢、工具钢到各种高合金钢、不锈钢、铸铁以及铁基粉末冶金件。
但是现有技术中,气体氮化后,大多是采用空冷、水冷、油冷的后续处理方式,由于许多特殊铸铁制品的工艺要求,禁止使用油冷,而空冷、水冷,不利于铸铁制品的长期防腐防锈。
发明内容
本发明的发明目的在于:针对上述存在的问题,提供一种铸铁制品专用的气体QPQ耦合剂及其制备方法,在铸铁制品表面形成一层防腐防锈涂层,防止铸铁制品生锈腐坏。
将本发明采用的技术方案如下:
一种铸铁制品专用的气体QPQ耦合剂,其特征在于,按照重量份数包括以下原料:蜡源45~60份、成膜剂0.5~1.5份、渗透剂1~1.5份、固化剂1~2份。
进一步的,按照重量份数包括以下原料:蜡源50~55份、成膜剂0.8~1.2份、渗透剂1~1.2份、固化剂1.4~1.6份。
进一步的,所述蜡源包括桐油、石油粗制品、硬脂酸中的一种或几种的组合。
进一步的,所述成膜剂为丙烯酸树脂成膜剂、丁二烯树脂成膜剂、聚氨酯成膜剂中的一种。
进一步的,所述渗透剂为脂肪醇聚氧乙烯醚、丙三醇或异丁醇中的至少一种。
进一步的,所述固化剂双氰胺、己二酸二酰肼、邻苯二甲酸酐、偏苯三甲酸酐、均苯四甲酸二酐、苯酮四羟酸三酐或顺丁烯二酸酐中的至少一种。
一种铸铁制品专用的气体QPQ耦合剂的制备方法,其特征在于,包括以下步骤:
步骤一:将蜡源加热融化成液态,过滤取溶液,备用;
步骤二:将渗透剂加入到液态的蜡源中,搅拌均匀形成混合溶液,备用;
步骤三:将成膜剂和固化剂加入到步骤二得到的混合溶液中,再次高速搅拌均匀,备用;
步骤四:将步骤三得到的混合溶液再次过滤,将过滤后的溶液脱气,冷却得到成品。
进一步的,所述步骤三中脱气方式为吹氦脱气法。
综上所述,由于采用了上述技术方案,本发明的有益效果是:
1、本发明中主要成分为蜡,蜡具有很好的防腐防锈效果,同时其蜡在高温的时候会融化,室温条件下可以凝固,将由蜡制备的耦合剂涂与氮化出炉后的铸铁制品表面,可以利用工件本身的余热进行热浴,使其浸入型腔内部及表面,从而达到极佳的防腐防锈效果。
2、脱气可以使耦合剂更好的渗透到铸铁制品表面,并减少其表面起泡的形成,防腐防锈效果更好。由于主要成分主要为蜡,吹氦脱气可以提高脱气的安全性。
具体实施方式
本说明书中公开的所有特征,或公开的所有方法或过程中的步骤,除了互相排斥的特征和/或步骤以外,均可以以任何方式组合。
本说明书(包括任何附加权利要求、摘要)中公开的任一特征,除非特别叙述,均可被其他等效或具有类似目的的替代特征加以替换。即,除非特别叙述,每个特征只是一系列等效或类似特征中的一个例子而已。
实施例1
一种铸铁制品专用的气体QPQ耦合剂的制备方法,包括以下步骤:
原料的准备,按照重量份称取桐油45份、丙烯酸树脂成膜剂0.5份、丙三醇1份、苯酮四羟酸三酐1份。
步骤一:将桐油加热融化成液态,过滤取溶液,备用;
步骤二:将丙三醇加入到液态的桐油中,搅拌均匀形成混合溶液,备用;
步骤三:将成膜剂和苯酮四羟酸三酐加入到步骤二得到的混合溶液中,再次高速搅拌均匀,备用;
步骤四:将步骤三得到的混合溶液再次过滤,将过滤后的溶液通过吹氦脱气法脱气,冷却得到成品。
实施例2
一种铸铁制品专用的气体QPQ耦合剂的制备方法,包括以下步骤:
原料的准备,按照重量份称取硬脂酸50份、聚氨酯成膜剂1份、脂肪醇聚氧乙烯醚1.2份、偏苯三甲酸酐1.5份。
步骤一:将硬脂酸加热融化成液态,过滤取溶液,备用;
步骤二:将脂肪醇聚氧乙烯醚加入到液态的硬脂酸中,搅拌均匀形成混合溶液,备用;
步骤三:将聚氨酯成膜剂和偏苯三甲酸酐加入到步骤二得到的混合溶液中,再次高速搅拌均匀,备用;
步骤四:将步骤三得到的混合溶液再次过滤,将过滤后的溶液通过吹氦脱气法脱气,冷却得到成品。
实施例3
一种铸铁制品专用的气体QPQ耦合剂的制备方法,包括以下步骤:
原料的准备,按照重量份称取石油粗制品60份、丁二烯树脂成膜剂1.5份、异丁醇1.5份、顺丁烯二酸酐2份。
步骤一:将石油粗制品加热融化成液态,过滤取溶液,备用;
步骤二:将异丁醇加入到液态的石油中,搅拌均匀形成混合溶液,备用;
步骤三:将丁二烯树脂成膜剂和顺丁烯二酸酐加入到步骤二得到的混合溶液中,再次高速搅拌均匀,备用;
步骤四:将步骤三得到的混合溶液再次过滤,将过滤后的溶液通过吹氦脱气法脱气,冷却得到成品。
实施例4
将实施例1~3制备得到的耦合剂涂抹在氮化出炉后的铸铁制品表面,通过铸铁本身的热量将耦合剂融化,并将其涂抹均匀,冷却。
本发明铸铁制品专用的气体QPQ耦合剂的各项指标见下表:
本发明并不局限于前述的具体实施方式。本发明扩展到任何在本说明书中披露的新特征或任何新的组合,以及披露的任一新的方法或过程的步骤或任何新的组合。
Claims (8)
1.一种铸铁制品专用的气体QPQ耦合剂,其特征在于,包括以下原料:按照重量份数包括以下原料:蜡源45~60份、成膜剂0.5~1.5份、渗透剂1~1.5份、固化剂1~2份。
2.根据权利要求1所述的铸铁制品专用的气体QPQ耦合剂,其特征在于,按照重量份数包括以下原料:蜡源50~55份、成膜剂0.8~1.2份、渗透剂1~1.2份、固化剂1.4~1.6份。
3.根据权利要求2所述的铸铁制品专用的气体QPQ耦合剂,其特征在于,所述蜡源包括桐油、石油粗制品、硬脂酸中的一种或几种的组合。
4.根据权利要求2所述的铸铁制品专用的气体QPQ耦合剂,其特征在于,所述成膜剂为丙烯酸树脂成膜剂、丁二烯树脂成膜剂、聚氨酯成膜剂中的一种。
5.根据权利要求2所述的铸铁制品专用的气体QPQ耦合剂,其特征在于,所述渗透剂为脂肪醇聚氧乙烯醚、丙三醇或异丁醇中的至少一种。
6.根据权利要求2所述的铸铁制品专用的气体QPQ耦合剂,其特征在于,所述固化剂双氰胺、己二酸二酰肼、邻苯二甲酸酐、偏苯三甲酸酐、均苯四甲酸二酐、苯酮四羟酸三酐或顺丁烯二酸酐中的至少一种。
7.根据权利要求1~6任意一项所述的铸铁制品专用的气体QPQ耦合剂的制备方法,其特征在于,包括以下步骤:
步骤一:将蜡源加热融化成液态,过滤取溶液,备用;
步骤二:将渗透剂加入到液态的蜡源中,搅拌均匀形成混合溶液,备用;
步骤三:将成膜剂和固化剂加入到步骤二得到的混合溶液中,再次高速搅拌均匀,备用;
步骤四:将步骤三得到的混合溶液再次过滤,将过滤后的溶液脱气,冷却得到成品。
8.根据权利要求7所述的铸铁制品专用的气体QPQ耦合剂的制备方法,其特征在于,所述步骤三中脱气方式为吹氦脱气法。
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