Gịnị mere nkenke ígwè anwụrụ mmepụta chọrọ pickling

Mmetụta nke pickling na passivation n'oge prefabrication, ịgbado ọkụ, ule, na okpomọkụ ọgwụgwọ ga-eme ka ígwè oxide, welding slag, griiz, na unyi ndị ọzọ na-agbakọta n'elu nke ọkpọkọ (carbon ígwè ọkpọkọ, carbon ọla kọpa ọkpọkọ, igwe anaghị agba nchara ọkpọkọ). , nke ga-ebelata nguzogide corrosion nke ọkpọkọ ígwè. Ụdị dị iche iche. Pickling bụ usoro mwepụ nchara kemịkalụ: mwepu nchara acid na-ewepụkarị oxides n'elu ọkpọkọ igwe anaghị agba nchara nwere oxygen. N'ihi na ferrous ọla, ọ tumadi na-ezo aka ígwè oxide, nke chemically reacts na ndị a metal oxides na dissolves ha na acid iji nweta nzube nke iwepụ nchara. Tupu pickling na nchara na-ewepụ, a ga-ebu ụzọ wepụ griiz dị na mgbidi nke ọkpọkọ igwe anaghị agba nchara, n'ihi na ọnụnọ nke griiz na-egbochi mmiri mmiri na-ekpo ọkụ ịkpọtụrụ mgbidi nke ígwè ígwè. Na-emetụta mmetụta mwepụ nchara. A ga-ebu ụzọ wetuo pipeline na-enweghị mmanụ (dị ka igwe anaghị agba nchara maka ikuku oxygen). Pickling na-ezo aka na iji ngwọta pickling dị ka sulfuric acid na-ekpochapụ oyi akwa oxide na uzuzu dị n'ebe a na-arụ ọrụ. Phosphating bụ usoro ọgwụgwọ maka ihicha elu.


Oge nzipu: Mar-29-2024