反应釜酸洗钝化技术

发布时间:2017/6/12 13:02:34

 Stainless steel laboratory reactor is not suitable for liquid pickling, it is recommended to use pre made paste, and also has the role of pickling passivation of stainless acid cleaning cream, the effect is better, safer and more reliable. The following is the product features, methods and effects of the use of the situation. In the process of processing stainless steel products, all effective measures should be taken to avoid the corrosion conditions and causes. In fact, many corrosion conditions and incentives (such as scratches, splashes, slag cutting, etc.) also have a significant adverse effect on the appearance quality of the products, and the laboratory reactors should and must be overcome. The "stainless steel pickling passivation paste" paste thoroughly painted on the surface and welding head, when the skin is thicker, paste coating may be slightly thicker, such as equipment oil pollution must first go to oil. Waste or by 20-40 minutes after the cotton rag to wipe back and forth rust and oxide (need to use steel brush to wash and clean water).

　　实验室反应釜如此钝化性能要求较高时不锈钢实验室反应釜，可将酸洗钝化时时间适当延长。不锈钢实验室反应釜，内筒材质为1Cr18Ni9Ti；反应介质为硝酸、硫酸，反应温度为120℃；夹套介质为蒸汽加热、循环水冷却、温度小于180℃；在距夹套空间顶部约50mm处，不锈钢实验室反应釜板材厚为14mm。锈钢由于其特殊的金相组织和实验室反应釜表面钝化膜，使得它在一般情况下较难与介质发生化学反应而被腐蚀，但并不是在任何条件下都不能被腐蚀。不锈钢实验室反应釜酸洗钝化膏，最适用于不锈钢件焊接接头的酸洗和钝化,去除焊接时产生的氧化皮并使该处处于钝态，提高表面质量充分发挥不锈钢焊接的耐蚀性,延长设备使用寿命。适合金属不锈钢实验室反应釜压力容器内部的酸洗钝化处理。实验室反应釜在腐蚀介质和诱因（如划伤、飞溅、割渣等）存在的条件下，不锈钢也能与腐蚀介质发生缓慢的化学和电化学反应被腐蚀，而且在一定条件下的腐蚀速度相当快而产生锈蚀现象，尤其是点蚀和缝隙腐蚀。不锈钢件的腐蚀机理主要为电化学腐蚀。

When the laboratory reactor is so passivated, the stainless steel laboratory reactor can prolong the time of pickling and passivation. Stainless steel laboratory reactor, the inner cylinder is made of 1Cr18Ni9Ti; the reaction medium for nitric acid, sulfuric acid, reaction temperature is 120 DEG C; Jacket Medium for steam heating, cooling circulating water, temperature less than 180 DEG C; at a distance of about 50mm at the top of the space of the jacket, stainless steel plate thickness of 14mm laboratory reactor. Stainless steel because of its special structure and laboratory reactor of passivating film on the surface, so that it is in general difficult and media reactions and corrosion, but not in any conditions cannot be corrosion. Laboratory reactor stainless steel pickling passivation cream, most applicable to stainless steel welding joint of pickling and passivation, remove oxide generated during welding and the is in a passive state, improve the surface quality of fully welded stainless steel corrosion resistance, prolong the service life of the equipment. Suitable for pickling and passivation treatment in pressure vessel of metal stainless steel laboratory reactor. Laboratory reactor in the corrosive medium and predisposing factors (such as scratch, splash, cutting slag) under the condition of the existence of stainless steel and corrosion medium can also slow chemical and electrochemical reactions of corrosion, and the corrosion rate under certain conditions is fast and have corrosion, especially pitting and crevice corrosion. The corrosion mechanism of stainless steel parts is mainly electrochemical corrosion.