Nrụrụ weld:Weld ntụpọ ndị dị oké njọ, akwụkwọ ntuziaka n'ibu egweri usoro a na-eji na-akwụ ụgwọ, dapụtara na-egweri akara, na-akpata na-erughị eru elu, na-emetụta ọdịdị.
Elu na-ekwekọghị ekwekọ:naanị pickling na passivation nke weld ga-eme ka enweghị oke elu ma na-emetụta ọdịdị ahụ.
Ọkpụkpụ na-esi ike iwepụ:n'ozuzu pickling passivation, enweghị ike esichara na usoro nke ụdị ọ bụla nke scratches wepụrụ, na-apụghị wepụ n'ihi scratches, ịgbado ọkụ splashes na adhesion n'elu igwe anaghị agba nchara carbon ígwè, splashes na ndị ọzọ adịghị ọcha, n'ihi na ọnụnọ nke corrosive. mgbasa ozi n'okpuru ọnọdụ nke chemical corrosion ma ọ bụ electrochemical corrosion na nchara.
Nchacha na ngafe na-ezighi ezi:pickling passivation ọgwụgwọ a rụrụ mgbe ntuziaka polishing na polishing.Ọ na-esi ike nweta otu na-agbanwe agbanwe mmetụta ọgwụgwọ maka nnukwu forgings, na ezigbo edo elu enweghị ike nweta.Na ọnụ ahịa oge ọrụ, ihe enyemaka dị elu.

Ikike ịtụtụ nwere oke:pickling passivation tapawa abụghị, n'ihi na plasma ịcha, ọkụ igbutu na black oxide, ọ na-esiri ike wepụ.
Ọkpụkpụ n'ihi ihe mmadụ kpatara dị njọ karị:na usoro nke ibuli elu, njem na nhazi nhazi, ihe nchacha nke ịkụ aka, ịdọrọ, hama na ihe ndị ọzọ na-eme ka mmadụ dị njọ karị, nke na-eme ka ọgwụgwọ elu dị ike karị, ma bụrụkwa isi ihe kpatara mmebi ahụ mgbe ọgwụgwọ gasịrị.
Ihe eji eme ihe: na profaịlụ, efere efere, na-ehulata usoro, mere site scratches na creases bụkwa isi ihe kpatara corrosion mgbe ọgwụgwọ gasịrị.
Ihe ndị ọzọ:igwe anaghị agba ncharaígwè forgingsN'ịzụ ahịa, usoro nchekwa, n'ihi ibuli elu, usoro njem nke ọkpụ na ncha dị njọ karị, bụkwa otu n'ime ihe ndị na-akpata corrosion.