Mmepụta nke igwe anaghị agba nchara nchara na-achọ usoro siri ike, n'ime usoro ahụ n'ihi ihe ụfọdụ ike majeure na-eduga na nsogbu ịdịmma ngwaahịa.

1.The ịgbado ọkụ n'ókè bụ ntụpọ, ọ bụ ezie na nsogbu a nwere ike na-edozi site n'aka-mechanical egweri, Ma egweri nke metụtara ga-ka na-eduga uneven ọdịdị, na-emetụta ọdịdị.If na-eji elu pickling passivation ọgwụgwọ usoro, nakwa ga-eduga ná. elu na-enweghị isi, na-emetụta ọdịdị ahụ.

2.Various scratches na nhazi siri ike wepụ, na-adọ ojiji nke mkpokọta pickling passivation ọgwụgwọ usoro bụkwa nnọọ ike kpamkpam wepụ, karịsịa ịgbado ọkụ ikwommiri na adhesion nke igwe anaghị agba nchara ntupu elu adịghị ọcha.

3.The ezughị ezu nke pickling ike kpatara enweghị Black oxide ọnụ ọgụgụ, na-emetụta ọdịdị ahụ, ọ na-esiri ike iwepụ.

4.Human ihe mere site scratches, dị ka hoisting, njem bumps, hammering, wdg mere site oké njọ scratches, ọ na-esi ike wepụ, ọbụna mgbe ọgwụgwọ dịkwa nnọọ mfe ịghọ isi akụkụ nke corrosion.These bụ ụfọdụ nkịtị nsogbu na. mmepụta, na mmepụta ga-ewere ụzọ niile iji zere omume nke nsogbu ndị a, mmebi nke kacha nta.