常州亿创钣金加工厂专业从事精密钣金加工、激光切割加工为主的钣金加工型厂家

常州亿创钣金加工厂

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钣金加工工艺之不锈钢表面本色白化处理

2018-05-25 22:09:09 常州亿创钣金加工厂 阅读

不锈钢在加工过程中,经过卷板、扎边、焊接或者经过人工表面火烤加温处理,常州钣金加工产生黑色氧化皮。这种坚硬的灰黑色氧化皮主要是NiCr2O4和NiF二种EO4成分,以前一般采用氢氟酸和硝酸进行强腐蚀方法去除。但这种方法成本大,污染环境,对人体有害,腐蚀性较大,逐渐被淘汰。目前钣金加工厂对氧化皮处理方法主要有二种:

(1)喷砂(丸)法:主要是采用喷微玻璃珠的方法,除去表面的黑色氧化皮。

(2)化学法:钣金加工使用一种无污染的酸洗钝化膏和常温无毒害的带有无机添加剂的清洗液进行浸洗。从而达到不锈钢本色的白化处理目的。处理好后基本上看上去是一无光的色泽。这种方法对大型、复杂产品较适用。

During the processing of stainless steel, the sheet metal is processed by rolling plate, ligation, welding or heat treatment by artificial surface fire. The sheet metal of Suzhou Xin Ma Tai produces black oxide skin. This hard gray black oxide skin is mainly composed of two EO4 components of NiCr2O4 and NiF. But this method is costly, pollute the environment, is harmful to human body, corrosiveness, and is gradually eliminated. At present, there are two ways to treat oxide scale in sheet metal processing plants.

(1) sandblasting (pellet) method: mainly using the method of spraying micro glass beads to remove the black oxide scale on the surface.

(2) chemical method: sheet metal processing uses a pollution-free pickling and passivation paste and washing agent with normal temperature and harmless inorganic additives. So as to achieve the purpose of albinism of stainless steel. After processing, it basically looks like a dull color. This method is more suitable for large and complex products.


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