CN107377331A - 一种无指纹拉丝不锈钢钢板的制备方法 - Google Patents
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- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
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- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
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- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
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- C—CHEMISTRY; METALLURGY
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- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/19—Iron or steel
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
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- C25F1/02—Pickling; Descaling
- C25F1/04—Pickling; Descaling in solution
- C25F1/06—Iron or steel
Abstract
本发明公开了一种无指纹拉丝不锈钢钢板的制备方法,主要包括如下步骤,拉丝;碱洗:碱洗液温度为40℃~45℃,碱洗液PH值为8.7~9.0;电解:电解液pH值控制在4~6,金属离子浓度6~10g/L,温度为52℃~58℃,电流密度为22~27A/dm3;酸洗:酸洗浓度为120~150g/L,金属离子浓度为40~50g/L,温度为60~65℃;清洗烘干;涂油:在不锈钢表面辊涂8‑10μm抗指纹涂层;流平:在3000~3300kg的张力下以10~12m/min的通过流平辊;烘烤;冷却打包。本发明中方法对不锈钢工件进行处理,提高复合涂料与不锈钢工件表面的附着力,使其在不锈钢工件表面形成化学性能稳定的高硬度涂层,该涂层具有较强的硬度和耐磨性,可有效起到防指纹、防污的效果,适用性广。
Description
技术领域
本发明涉及不锈钢表面处理技术领域,特别涉及无指纹拉丝不锈钢钢板的制备方法。
背景技术
不锈钢板材是现代电梯、高端厨卫电器、建筑装饰等的重要必备材料,其天然的银白色金属光泽或者经拉丝工艺处理后的玫瑰金的涂覆色使被装饰物表面显得华丽高雅。
目前,普通未经处理的不锈钢板表面不耐摩擦,一擦即有擦痕,易受指纹中含有的油脂、尿酸等污染,且不易擦洗,时间久了会黯然失色;此外沾染在不锈钢板表面后形成的污渍不易擦洗掉,使不锈钢装饰板表面逐渐失去光泽,非常的不美观,因此而降低了产品的档次,产品附加值不高。
发明内容
本发明的目的是针对现有的问题,提供一种无指纹拉丝不锈钢钢板的制备方法。
本发明通过如下的技术方案实现:
一种无指纹拉丝不锈钢钢板的制备方法,包括下述步骤:
⑴、拉丝:至少设置3组拉丝辊,其中1号辊为80目,2号辊为 80目,3号辊为120目;
⑵、碱洗:将步骤⑴拉丝后的钢板在1000~1080kg的张力下以 8~10m/min的速度送入到碱洗池,所述碱洗池内的碱洗液温度为40℃~45℃,碱洗液PH值为8.7~9.0;
⑶、电解:将步骤⑵碱洗后的钢板送入到电解酸洗溶液电解,所述电解酸洗溶液包括中性盐溶液、硅酸、硝酸及一种或多种表面活性剂溶液,其中,中性盐溶液浓度为180~200g/L,硅酸浓度为110~130g/L,硝酸浓度为100~120g/L,表面活性剂溶液的质量浓度为3.5%~5%,调节电解酸洗溶液的pH值,使得pH值控制在4~6,金属离子浓度 6~10g/L,温度为52℃~58℃,电流密度为22~27A/dm3;
⑷、酸洗:将步骤⑶电解后的不锈板带在1800~2200kg的张力下进行硫酸酸洗,其中,硫酸浓度为120~150g/L,金属离子浓度为 40~50g/L,温度为60~65℃;
⑸、清洗烘干,将步骤⑷的不锈钢板用水喷淋清洗,然后烘干;
⑹、涂油:在不锈钢表面辊涂8-10μm抗指纹涂层;
⑺、流平:将步骤⑹涂油后的不锈钢板在3000~3300kg的张力下以10~12m/min的通过流平辊;
⑻、烘烤:将步骤⑺流平后的钢带在烘烤温度195℃~205℃,烘烤时间为2.5~2.8min的工艺条件烘烤;
⑼、冷却打包。
进一步地,步骤⑵中所述碱洗池内的碱洗液配比成分为:质量浓度为4%的壬基酚聚氧乙烯醚溶液、质量浓度为5%的苯酚聚氧乙烯醚溶液、质量浓度为15%的氢氧化钠溶液、质量浓度为20%无水碳酸钠溶液、质量浓度为30%焦磷酸钠溶液。
本发明中方法对不锈钢工件进行处理,提高复合涂料与不锈钢工件表面的附着力,使其在不锈钢工件表面形成化学性能稳定的高硬度涂层,该涂层具有较强的硬度和耐磨性,可有效起到防指纹、防污的效果,适用性广。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅用以解释本发明,并不用于限定本发明。
实施例一:
试验对象:SUS304,包括下述步骤:
⑴、拉丝:至少设置3组拉丝辊,其中1号辊为80目,2号辊为 80目,3号辊为120目;
⑵、碱洗:将步骤⑴拉丝后的钢板在1000~1080kg的张力下以 8~10m/min的速度送入到碱洗池,所述碱洗池内的碱洗液温度为40℃~45℃,碱洗液PH值为8.7~9.0;
⑶、电解:将步骤⑵碱洗后的钢板送入到电解酸洗溶液电解,所述电解酸洗溶液包括中性盐溶液、硅酸、硝酸及一种或多种表面活性剂溶液,其中,中性盐溶液浓度为180~200g/L,硅酸浓度为110~130g/L,硝酸浓度为100~120g/L,表面活性剂溶液的质量浓度为3.5%~5%,调节电解酸洗溶液的pH值,使得pH值控制在4~6,金属离子浓度 6~10g/L,温度为52℃~58℃,电流密度为22~27A/dm3;
⑷、酸洗:将步骤⑶电解后的不锈板带在1800~2200kg的张力下进行硫酸酸洗,其中,硫酸浓度为120~150g/L,金属离子浓度为 40~50g/L,温度为60~65℃;
⑸、清洗烘干,将步骤⑷的不锈钢板用水喷淋清洗,然后烘干;
⑹、涂油:在不锈钢表面辊涂8-10μm抗指纹涂层;
⑺、流平:将步骤⑹涂油后的不锈钢板在3000~3300kg的张力下以10~12m/min的通过流平辊;
⑻、烘烤:将步骤⑺流平后的钢带在烘烤温度195℃~205℃,烘烤时间为2.5~2.8min的工艺条件烘烤;
⑼、冷却打包。
测试:
实施例二:
试验对象:409L,包括下述步骤:
⑴、拉丝:至少设置3组拉丝辊,其中1号辊为80目,2号辊为 80目,3号辊为120目;
⑵、碱洗:将步骤⑴拉丝后的钢板在1000~1080kg的张力下以 8~10m/min的速度送入到碱洗池,所述碱洗池内的碱洗液温度为40℃~45℃,碱洗液PH值为8.7~9.0;
⑶、电解:将步骤⑵碱洗后的钢板送入到电解酸洗溶液电解,所述电解酸洗溶液包括中性盐溶液、硅酸、硝酸及一种或多种表面活性剂溶液,其中,中性盐溶液浓度为180~200g/L,硅酸浓度为110~130g/L,硝酸浓度为100~120g/L,表面活性剂溶液的质量浓度为3.5%~5%,调节电解酸洗溶液的pH值,使得pH值控制在4~6,金属离子浓度 6~10g/L,温度为52℃~58℃,电流密度为22~27A/dm3;
⑷、酸洗:将步骤⑶电解后的不锈板带在1800~2200kg的张力下进行硫酸酸洗,其中,硫酸浓度为120~150g/L,金属离子浓度为 40~50g/L,温度为60~65℃;
⑸、清洗烘干,将步骤⑷的不锈钢板用水喷淋清洗,然后烘干;
⑹、涂油:在不锈钢表面辊涂8-10μm抗指纹涂层;
⑺、流平:将步骤⑹涂油后的不锈钢板在3000~3300kg的张力下以10~12m/min的通过流平辊;
⑻、烘烤:将步骤⑺流平后的钢带在烘烤温度195℃~205℃,烘烤时间为2.5~2.8min的工艺条件烘烤;
⑼、冷却打包。
测试:
参考行业标准规范,上述测试结果均高于行业标准值,可见本发明的制备方法较现有技术有一定的增强性。
Claims (2)
1.一种无指纹拉丝不锈钢钢板的制备方法,其特征在于,包括下述步骤:
⑴、拉丝:至少设置3组拉丝辊,其中1号辊为80目,2号辊为80目,3号辊为120目;
⑵、碱洗:将步骤⑴拉丝后的钢板在1000~1080kg的张力下以8~10m/min的速度送入到碱洗池,所述碱洗池内的碱洗液温度为40℃~45℃,碱洗液PH值为8.7~9.0;
⑶、电解:将步骤⑵碱洗后的钢板送入到电解酸洗溶液电解,所述电解酸洗溶液包括中性盐溶液、硅酸、硝酸及一种或多种表面活性剂溶液,其中,中性盐溶液浓度为180~200g/L,硅酸浓度为110~130g/L,硝酸浓度为100~120g/L,表面活性剂溶液的质量浓度为3.5%~5%,调节电解酸洗溶液的pH值,使得pH值控制在4~6,金属离子浓度6~10g/L,温度为52℃~58℃,电流密度为22~27A/dm3;
⑷、酸洗:将步骤⑶电解后的不锈板带在1800~2200kg的张力下进行硫酸酸洗,其中,硫酸浓度为120~150g/L,金属离子浓度为40~50g/L,温度为60~65℃;
⑸、清洗烘干,将步骤⑷的不锈钢板用水喷淋清洗,然后烘干;
⑹、涂油:在不锈钢表面辊涂8-10μm抗指纹涂层;
⑺、流平:将步骤⑹涂油后的不锈钢板在3000~3300kg的张力下以10~12m/min的通过流平辊;
⑻、烘烤:将步骤⑺流平后的钢带在烘烤温度195℃~205℃,烘烤时间为2.5~2.8min的工艺条件烘烤;
⑼、冷却打包。
2.根据权利要求1所述的一种无指纹拉丝不锈钢钢板的制备方法,其特征在于,步骤⑵中所述碱洗池内的碱洗液配比成分为:质量浓度为4%的壬基酚聚氧乙烯醚溶液、质量浓度为5%的苯酚聚氧乙烯醚溶液、质量浓度为15%的氢氧化钠溶液、质量浓度为20%无水碳酸钠溶液、质量浓度为30%焦磷酸钠溶液。
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