论文部分内容阅读
自从我所采用常温发黑新工艺之后,钢铁零件的常温发黑是在酸性条件下进行,使钢铁零件表面形成一层致密的氧化膜层,该膜层呈微孔结构,对干燥气体的抗蚀力较强,但在水及潮湿气体中抵抗力较差,同时残余的酸性溶液还可能使零件发生电化学腐蚀。为了提高发黑膜的抗蚀能力,同碱性发黑一样,发黑件需要进行脱水封闭,同时还可增加其美观度。为此,我们采用了南京产的TS型脱水防锈油来对发黑件脱水封闭,提高了发黑膜的抗湿性和抗蚀力,改掉了碱性发黑的机油加温等脱水封闭操作,取得了较大的经济效益。 1.脱水防锈的简单原理 TS脱水防锈油的特点,是能够置换粘附在金属零件上的水份,因而使零件免于被腐蚀。经发黑处理的零件,流动水冲洗干净后,直接浸入脱水封闭油中,零件的发黑膜层中便吸附有防锈油。这时脱水防锈油利用其脱水组分,使油不断替代零件表面的水
Since I use the new technology at room temperature blackening, steel parts at room temperature blackening is carried out under acidic conditions, so that the surface of steel parts to form a dense oxide film layer, the film was porous structure, the resistance to dry gas Erosion power is strong, but in water and humid gas resistance is poor, while the residual acid solution may also make parts electrochemical corrosion. In order to improve the anti-corrosion ability of the blackening film, like the basic blackening, the blackening member needs to be dehydrated and closed, and at the same time, the beauty of the blackening film can be increased. To this end, we use the Nanjing-made TS-type dehydration anti-rust oil on the blackening dehydration closed to improve the moisture resistance of the black film and corrosion resistance, get rid of alkaline blackening oil heating dehydration closed Operation, made a greater economic benefits. 1. The simple principle of dehydration rust TS dehydration rust-proof oil is characterized by the ability to replace the water adhered to the metal parts, thus protecting the parts from corrosion. Black processed parts, mobile water rinse, directly into the dehydration of closed oil, parts of the black film is adsorbed anti-rust oil. At this time dehydration antirust oil use its dehydration components, so that the oil continues to replace the surface water