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濟南C型鋼廠淺析C型鋼表面脫脂的方法有哪些?

來源:http://www.ebassfish.com/ 日期:2020-12-15 發布人:jiangucaigang
C型鋼表面脫脂的方法很多,通常與鍍鋅生產線的設備設置有關。兩者需要相互適應。在電鍍前對C型鋼進行脫脂有幾種方法。
  There are many ways to degrease the surface of C-section steel, usually related to the equipment of galvanizing production line. The two need to adapt to each other. There are several ways to degrease C-beam before electroplating.
  有機溶劑脫脂。有機溶劑脫脂實際上是皂化油和不皂化油在有機溶劑中的溶解過程。鋼鐵制品在機械加工過程中,其表面往往附著較厚的油膜,直接化學處理比較困難,通常采用有機溶劑處理。本方法不適合去除電焊C型鋼表面附著的油污。
  Degrease with organic solvent. Degreasing by organic solvent is actually the dissolving process of saponified oil and unsaponifiable oil in organic solvent. In the machining process of iron and steel products, the thick oil film is often attached to the surface, which is difficult to be treated directly by chemical treatment. This method is not suitable for removing the greasy dirt on the surface of C-beam.
  化學脫脂。一般是指用堿液和堿鹽溶液去油。這種脫脂過程是一個復雜的物理化學過程。它是由油膜在表面活性劑和堿的作用下產生的。堿性水溶液去除鋼表面油脂的機理。
  Chemical degreasing. Generally, it refers to the use of alkali solution and alkali salt solution to remove oil. This degreasing process is a complex physical and chemical process. It is produced by oil film under the action of surfactant and alkali. The mechanism of removing grease from steel surface by alkaline aqueous solution.

 
  目前,C型鋼熱鍍鋅前的脫脂主要采用化學清洗的方法。脫脂劑也可以循環使用,這有助于脫脂。在循環系統中應該安裝一個分離器,將油脂從脫脂液中除去。為了清潔C型鋼表面,在從脫脂液中去除C型鋼之前,應先去除脫脂液的表面。
  At present, chemical cleaning is mainly used to degrease C-steel before hot galvanizing. Degreasers can also be recycled, which helps to degrease. A separator shall be installed in the circulation system to remove grease from the degreasing solution. In order to clean the surface of C-section steel, the surface of degreasing liquid should be removed before removing C-section steel from degreasing liquid.
  電化學脫脂。電化學脫脂是將氫從陰極析出或將氧從陽極析出,機械剝離附在c型鋼表面的油膜,加速油脂乳化的過程。電解脫脂法根據被清潔物體的電極極性可分為陽極電解脫脂法、陰極電解脫脂法和混合極性電解脫脂法。
  Electrochemical degreasing. Electrochemical degreasing is a process of separating hydrogen from the cathode or oxygen from the anode, mechanically stripping the oil film attached to the surface of C-steel, and accelerating the oil emulsification. According to the electrode polarity of the cleaned object, the electrolytic degreasing method can be divided into anode electrolytic degreasing method, cathode electrolytic degreasing method and mixed polarity electrolytic degreasing method.
  一般情況下,C型鋼表面的潤滑脂較少。爐焊管是在高溫下形成的,在精加工過程中可能會接觸到油脂,但這是可以避免的,通常不需要脫脂工藝。焊接時管道與油脂接觸機會大,表面常附著在套管油脂上,如果沒有脫脂工藝,會給酸洗帶來困難,甚至會污染酸洗液??傊?,是否采用脫脂,要根據C鋼表面原料的具體情況而定。
  Generally, there is less grease on the surface of C-section steel. The furnace welded pipe is formed under high temperature, and it may contact with grease during finishing, but this can be avoided, and generally no degreasing process is required. During welding, there is a great chance for the pipeline to contact with the grease, and the surface is often attached to the casing grease. If there is no degreasing process, it will bring difficulties to pickling and even pollute the pickling solution. In a word, whether to use degreasing depends on the specific situation of C steel surface materials.
此文關鍵詞: 濟南C型鋼廠  

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