CN107511314A - 一种高强度冷轧钢板的处理方法 - Google Patents

一种高强度冷轧钢板的处理方法 Download PDF

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CN107511314A
CN107511314A CN201710680771.3A CN201710680771A CN107511314A CN 107511314 A CN107511314 A CN 107511314A CN 201710680771 A CN201710680771 A CN 201710680771A CN 107511314 A CN107511314 A CN 107511314A
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孙爱琴
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Abstract

本发明属于冷轧钢板加工技术领域，尤其是一种高强度冷轧钢板的处理方法，具体方法如下：（1）将冷轧钢板浸没于亚硫酸钠水溶液中浸洗，并通入电压电解，取出，得预处理冷轧钢板；（2）将预处理冷轧钢板用大气压介质阻挡放电生成的冷等离子体处理，置入烘烤箱烘烤，取出，得一次处理冷轧钢板；（3）将一次处理冷轧钢板浸没于处理液中处理，取出，真空处理，取出，热压干燥；本发明突破传统工艺，处理方法简单，不但能够有效增强冷轧钢板组分间的凝聚力，提高致密性，从而有效提高屈服强度、拉伸强度、延伸率、n值和r值，防开裂、防断裂、防变形，而且有效增强冷轧钢板的防腐蚀性能和耐磨性能，有效提升其使用效果，延长其使用寿命。

Description

一种高强度冷轧钢板的处理方法
技术领域
本发明属于冷轧钢板加工技术领域，尤其是一种高强度冷轧钢板的处理方法。
背景技术
冷轧钢板带用途很广，如汽车制造、电气产品、机车车辆、航空、精密仪表、食品罐头等，是由普通碳素结构钢热轧钢带，经过进一步冷轧制成厚度小于4mm的钢板，由于在常温下轧制，不产生氧化铁皮，因此，冷板表面质量好，尺寸精度高，但是其机械性能还有待提高；但是目前对冷轧钢板的研究多停留在原料、配方、结构设计上，很少有进行冷轧钢板处理工艺的研究，导致冷轧钢板领域一直得不到突破性发展。
发明内容
针对上述问题，本发明旨在提供一种高强度冷轧钢板的处理方法。
本发明通过以下技术方案实现：
一种高强度冷轧钢板的处理方法，具体方法如下：
（1）将冷轧钢板浸没于质量分数为6%~7%的亚硫酸钠水溶液中浸洗32~36min，并通入370~380V的电压电解14~16min，调整电压为550~560V继续电解18~20min，取出，得预处理冷轧钢板；
（2）将预处理冷轧钢板用大气压介质阻挡放电生成的冷等离子体处理9~11min，置入温度为71~73℃的烘烤箱内恒温烘烤19~21min、以2.3~2.5℃/min的升温速率升温至93~95℃继续恒温烘烤28~30min，取出，得一次处理冷轧钢板；
（3）将一次处理冷轧钢板浸没于温度为1~2℃的处理液中处理15~17min，取出，置入真空度为120~130Pa条件下真空处理12~14min、调整真空度为210~220Pa继续真空处理20~22min，取出，热压干燥26~30min；
所述的处理液，由以下重量份的原料制成：罗望子胶3.1~3.3份、水性丙烯酸树脂5.4~5.6份、硅酸钙10~11份、黄腐酸钾14~15份、过氧化钾7.7~7.9份、硝酸钴3.5~3.7份、去离子水120~130份。
作为发明进一步的方案：步骤（2）所述的大气压介质阻挡放电，先使用电源频率为64~66kHz、电压为14~15kV处理6~7min，然后使用电源频率为36~38kHz、电压为9~10kV处理3~4min。
作为发明进一步的方案：步骤（3）所述的热压干燥，先在温度为88~90℃、压力为0.34~0.38MPa的条件下热压干燥16~18min，然后在温度为97~99℃、压力为0.57~0.59MPa的条件下热压干燥10~12min。
本发明的有益效果：本发明提供的一种高强度冷轧钢板的处理方法，突破传统工艺，处理方法简单，不但能够有效活化冷轧钢板组分活力，增强组分间的凝聚力，提高致密性，从而有效提高屈服强度、拉伸强度、延伸率、n值和r值，防开裂、防断裂、防变形，而且能够有效增强冷轧钢板的防腐蚀性能和耐磨性能，有效提升其使用效果，延长其使用寿命。
具体实施方式
下面用具体实施例说明本发明，但并不是对本发明的限制。
实施例1
本发明实施例中，一种高强度冷轧钢板的处理方法，具体方法如下：
（1）将冷轧钢板浸没于质量分数为6%的亚硫酸钠水溶液中浸洗32min，并通入370V的电压电解14min，调整电压为550V继续电解18min，取出，得预处理冷轧钢板；
（2）将预处理冷轧钢板用大气压介质阻挡放电生成的冷等离子体处理9min，置入温度为71℃的烘烤箱内恒温烘烤19min、以2.3℃/min的升温速率升温至93℃继续恒温烘烤28min，取出，得一次处理冷轧钢板；
（3）将一次处理冷轧钢板浸没于温度为1℃的处理液中处理15min，取出，置入真空度为120Pa条件下真空处理12min、调整真空度为210Pa继续真空处理20min，取出，热压干燥26min；
所述的处理液，由以下重量份的原料制成：罗望子胶3.1份、水性丙烯酸树脂5.4份、硅酸钙10份、黄腐酸钾14份、过氧化钾7.7份、硝酸钴3.5份、去离子水120份。
作为发明进一步的方案：步骤（2）所述的大气压介质阻挡放电，先使用电源频率为64kHz、电压为14kV处理6min，然后使用电源频率为36kHz、电压为9kV处理3~4min。
作为发明进一步的方案：步骤（3）所述的热压干燥，先在温度为88℃、压力为0.34MPa的条件下热压干燥16min，然后在温度为97℃、压力为0.57MPa的条件下热压干燥10min。
实施例2
本发明实施例中，一种高强度冷轧钢板的处理方法，具体方法如下：
（1）将冷轧钢板浸没于质量分数为6.5%的亚硫酸钠水溶液中浸洗34min，并通入375V的电压电解15min，调整电压为555V继续电解19min，取出，得预处理冷轧钢板；
（2）将预处理冷轧钢板用大气压介质阻挡放电生成的冷等离子体处理10min，置入温度为72℃的烘烤箱内恒温烘烤20min、以2.4℃/min的升温速率升温至94℃继续恒温烘烤29min，取出，得一次处理冷轧钢板；
（3）将一次处理冷轧钢板浸没于温度为1.5℃的处理液中处理16min，取出，置入真空度为125Pa条件下真空处理13min、调整真空度为215Pa继续真空处理21min，取出，热压干燥28min；
所述的处理液，由以下重量份的原料制成：罗望子胶3.2份、水性丙烯酸树脂5.5份、硅酸钙10.5份、黄腐酸钾14.5份、过氧化钾7.8份、硝酸钴3.6份、去离子水125份。
作为发明进一步的方案：步骤（2）所述的大气压介质阻挡放电，先使用电源频率为65kHz、电压为14.5kV处理6.5min，然后使用电源频率为37kHz、电压为9.5kV处理3.5min。
作为发明进一步的方案：步骤（3）所述的热压干燥，先在温度为89℃、压力为0.36MPa的条件下热压干燥17min，然后在温度为98℃、压力为0.58MPa的条件下热压干燥11min。
实施例3
本发明实施例中，一种高强度冷轧钢板的处理方法，具体方法如下：
（1）将冷轧钢板浸没于质量分数为6%~7%的亚硫酸钠水溶液中浸洗36min，并通入380V的电压电解16min，调整电压为560V继续电解20min，取出，得预处理冷轧钢板；
（2）将预处理冷轧钢板用大气压介质阻挡放电生成的冷等离子体处理11min，置入温度为73℃的烘烤箱内恒温烘烤21min、以2.5℃/min的升温速率升温至95℃继续恒温烘烤30min，取出，得一次处理冷轧钢板；
（3）将一次处理冷轧钢板浸没于温度为2℃的处理液中处理17min，取出，置入真空度为130Pa条件下真空处理14min、调整真空度为220Pa继续真空处理22min，取出，热压干燥30min；
所述的处理液，由以下重量份的原料制成：罗望子胶3.3份、水性丙烯酸树脂5.6份、硅酸钙11份、黄腐酸钾15份、过氧化钾7.9份、硝酸钴3.7份、去离子水130份。
作为发明进一步的方案：步骤（2）所述的大气压介质阻挡放电，先使用电源频率为66kHz、电压为15kV处理7min，然后使用电源频率为38kHz、电压为10kV处理4min。
作为发明进一步的方案：步骤（3）所述的热压干燥，先在温度为90℃、压力为0.38MPa的条件下热压干燥18min，然后在温度为99℃、压力为0.59MPa的条件下热压干燥12min。
对比例
未处理冷轧钢板
对同一批性能相同的冷轧钢板使用实施例的处理方法和对比例的处理方法进行处理，处理后进机械性能测试，测定其屈服强度、拉伸强度、延伸率、n值和r值，结果如表1：
表1 实施例和对比例的对比结果
屈服强度（MPa) 拉伸强度（MPa) 延伸率（%） n值 r值
实施例1 197.71 425.42 63.37 0.416 2.978
实施例2 197.76 425.54 63.41 0.420 2.982
实施例3 197.88 425.65 63.43 0.422 2.984
对比例 124.65 300.14 50.48 0.287 2.21
从表1可知，经本发明处理后的冷轧钢板的机械性能得到显著提升，有效提高使用效果。

Claims (3)

1.一种高强度冷轧钢板的处理方法，其特征在于，具体方法如下：
（1）将冷轧钢板浸没于质量分数为6%~7%的亚硫酸钠水溶液中浸洗32~36min，并通入370~380V的电压电解14~16min，调整电压为550~560V继续电解18~20min，取出，得预处理冷轧钢板；
（2）将预处理冷轧钢板用大气压介质阻挡放电生成的冷等离子体处理9~11min，置入温度为71~73℃的烘烤箱内恒温烘烤19~21min、以2.3~2.5℃/min的升温速率升温至93~95℃继续恒温烘烤28~30min，取出，得一次处理冷轧钢板；
（3）将一次处理冷轧钢板浸没于温度为1~2℃的处理液中处理15~17min，取出，置入真空度为120~130Pa条件下真空处理12~14min、调整真空度为210~220Pa继续真空处理20~22min，取出，热压干燥26~30min；
所述的处理液，由以下重量份的原料制成：罗望子胶3.1~3.3份、水性丙烯酸树脂5.4~5.6份、硅酸钙10~11份、黄腐酸钾14~15份、过氧化钾7.7~7.9份、硝酸钴3.5~3.7份、去离子水120~130份。
2.根据权利要求1所述的高强度冷轧钢板的处理方法，其特征在于，步骤（2）所述的大气压介质阻挡放电，先使用电源频率为64~66kHz、电压为14~15kV处理6~7min，然后使用电源频率为36~38kHz、电压为9~10kV处理3~4min。
3.根据权利要求1所述的高强度冷轧钢板的处理方法，其特征在于，步骤（3）所述的热压干燥，先在温度为88~90℃、压力为0.34~0.38MPa的条件下热压干燥16~18min，然后在温度为97~99℃、压力为0.57~0.59MPa的条件下热压干燥10~12min。
CN201710680771.3A 2017-08-10 2017-08-10 一种高强度冷轧钢板的处理方法 Pending CN107511314A (zh)

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