CN109695033A - 阀板表面耐腐蚀处理方法 - Google Patents
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Abstract
本发明提供一种阀板表面耐腐蚀处理方法。本发明的方法包括:(1)对阀板进行除油除脂清洗后烘干;(2)对除油除脂清洗后的阀板进行喷砂处理;(3)对喷砂后的阀板进行发黑处理;(4)对发黑处理后的阀板表面喷涂树脂涂料并干燥,形成一层树脂层,再在树脂层表面重复喷涂树脂涂料并干燥,直至形成设定厚度的树脂防腐层。本发明的方法有效避免阀板腐蚀,延长阀门的使用寿命。
Description
技术领域:
本发明涉及一种阀板表面耐腐蚀处理方法,属于阀门加工技术领域。
背景技术:
阀门可是工业生产中重要的一环,涉及到国民经济诸多部门,是国民经济发展重要的基础设备。一旦阀门出了故障,那么损失是难以估量的。阀门作为控制流体的控制器,会接触到各种各样的液体,日积月累,难免会受到侵蚀。金属的腐蚀破坏对阀门的作用期限,可靠性和使用寿命有相当大的影响。机械和腐蚀的作用因素对金属的作用大大地增加了接触表面总的磨损量。阀门在操作过程中,摩擦的表面总的磨损量。阀门在操作过程中,摩擦的表面由于同时的机械作用和金属与环境进行化学的或电化学的互相作用的结果产生磨损和破坏。对阀门而言,其管道工作气候条件的复杂;石油、天然气和油层水等介质中硫化氢、二氧化碳和某些有机酸的出现使其金属表面的破坏力增大,从而迅速失去工作能力。由于金属的化学腐蚀取决于温度、磨擦零件的机械负荷、润滑材料中所含的硫化物及其抗酸的稳定性与介质接触持续的时间和金属对氮化过程的催化作用、腐蚀浸蚀性物质的分子对金属的转换速度等等。因此,金属阀门的防腐方法(或措施)及合成材料阀门的应用,便成为目前阀门行业研究的主题之一。
发明内容:
本发明的目的是针对上述存在的问题提供一种阀板表面耐腐蚀处理方法,有效避免阀板腐蚀,延长阀门的使用寿命。
上述的目的通过以下的技术方案实现:
阀板表面耐腐蚀处理方法,该方法包括如下步骤:
(1)对阀板进行除油除脂清洗后烘干;
(2)对除油除脂清洗后的阀板进行喷砂处理;
(3)对喷砂后的阀板进行发黑处理;
(4)对发黑处理后的阀板表面喷涂树脂涂料并干燥,形成一层树脂层,再在树脂层表面重复喷涂树脂涂料并干燥,直至形成设定厚度的树脂防腐层。
所述的阀板表面耐腐蚀处理方法,所述除油除脂清洗的溶液采用质量百分浓度为3-5%的硫酸溶液。
所述的阀板表面耐腐蚀处理方法,所述发黑处理的具体方法是:配比发黑溶液,然后将要处理的阀板浸入配比好的发黑溶液中,150-165℃下处理3-5小时。
所述的阀板表面耐腐蚀处理方法,所述发黑溶液按重量份数包括:水1000份、磷酸5-15份、硝酸钙50-75份、过氧化锰5-15份、草酸3-8份。
所述的阀板表面耐腐蚀处理方法,所述的树脂采用聚酰亚胺树脂或者聚四氟乙烯树脂。
所述的阀板表面耐腐蚀处理方法,所述的树脂防腐层的厚度为0.5-3mm。
有益效果:
本发明采用发黑处理和树脂层结合的方式,达到的防腐效果好,有效避免阀板腐蚀,延长阀门的使用寿命。
具体实施方式:
实施例1:
阀板表面耐腐蚀处理方法,该方法包括如下步骤:
(1)对阀板进行除油除脂清洗后烘干;
(2)对除油除脂清洗后的阀板进行喷砂处理;
(3)对喷砂后的阀板进行发黑处理;
(4)对发黑处理后的阀板表面喷涂树脂涂料并干燥,形成一层树脂层,再在树脂层表面重复喷涂树脂涂料并干燥,直至形成设定厚度的树脂防腐层。
本实施例中所述的阀板表面耐腐蚀处理方法,所述除油除脂清洗的溶液采用质量百分浓度为3-5%的硫酸溶液。
本实施例中所述的阀板表面耐腐蚀处理方法,所述发黑处理的具体方法是:配比发黑溶液,然后将要处理的阀板浸入配比好的发黑溶液中,150-165℃下处理3-5小时。
本实施例中所述的阀板表面耐腐蚀处理方法,所述发黑溶液按重量份数包括:水1000份、磷酸5-15份、硝酸钙50-75份、过氧化锰5-15份、草酸3-8份。
本实施例中所述的阀板表面耐腐蚀处理方法,所述的树脂采用聚酰亚胺树脂或者聚四氟乙烯树脂。聚酰亚胺树脂或者聚四氟乙烯树脂都属于耐高温耐侯性比较好的树脂,适合恶劣环境下的阀门使用。
本实施例中所述的阀板表面耐腐蚀处理方法,所述的树脂防腐层的厚度为0.5-3mm。
本发明方案所公开的技术手段不仅限于上述技术手段所公开的技术手段,还包括由以上技术特征等同替换所组成 的技术方案。本发明的未尽事宜,属于本领域技术人员的公知常识。
Claims (6)
1.一种阀板表面耐腐蚀处理方法,其特征是:该方法包括如下步骤:
(1)对阀板进行除油除脂清洗后烘干;
(2)对除油除脂清洗后的阀板进行喷砂处理;
(3)对喷砂后的阀板进行发黑处理;
(4)对发黑处理后的阀板表面喷涂树脂涂料并干燥,形成一层树脂层,再在树脂层表面重复喷涂树脂涂料并干燥,直至形成设定厚度的树脂防腐层。
2.根据权利要求1所述的阀板表面耐腐蚀处理方法,其特征是:所述除油除脂清洗的溶液采用质量百分浓度为3-5%的硫酸溶液。
3.根据权利要求1所述的阀板表面耐腐蚀处理方法,其特征是:所述发黑处理的具体方法是:配比发黑溶液,然后将要处理的阀板浸入配比好的发黑溶液中,150-165℃下处理3-5小时。
4.根据权利要求3所述的阀板表面耐腐蚀处理方法,其特征是:所述发黑溶液按重量份数包括:水1000份、磷酸5-15份、硝酸钙50-75份、过氧化锰5-15份、草酸3-8份。
5.根据权利要求1所述的阀板表面耐腐蚀处理方法,其特征是:所述的树脂采用聚酰亚胺树脂或者聚四氟乙烯树脂。
6.根据权利要求1或5所述的阀板表面耐腐蚀处理方法,其特征是:所述的树脂防腐层的厚度为0.5-3mm。
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CN113351457A (zh) * | 2021-06-17 | 2021-09-07 | 江阴市中鼎节能流体科技有限公司 | 一种特氟龙波纹管内扣压接头及其制备方法 |
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CN102974519A (zh) * | 2012-11-15 | 2013-03-20 | 宝鸡森特瑞石油机械科技有限公司 | 一种用于海洋环境紧固件防腐工艺 |
CN104696654A (zh) * | 2013-12-05 | 2015-06-10 | 浙江波威钢构有限公司 | 一种耐腐蚀三通 |
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CN102974519A (zh) * | 2012-11-15 | 2013-03-20 | 宝鸡森特瑞石油机械科技有限公司 | 一种用于海洋环境紧固件防腐工艺 |
CN104696654A (zh) * | 2013-12-05 | 2015-06-10 | 浙江波威钢构有限公司 | 一种耐腐蚀三通 |
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CN113351457A (zh) * | 2021-06-17 | 2021-09-07 | 江阴市中鼎节能流体科技有限公司 | 一种特氟龙波纹管内扣压接头及其制备方法 |
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