Ọgwụgwọ dị n'elu a na-ahụkarị maka bolts

Mkpuchi: na-etinye ihe mkpuchi n'elu ihe mkpuchi ahụ iji mepụta otu ihe nkiri na-eme ka ọ dịkwuo mma na-eguzogide corrosion na ọdịdị ya. Uru ya bụ na ọ dị mma, ma mwepu bụ na ọ naghị adịte aka ma na-adị mfe kpụchaa ya.
galvanizing na-ekpo ọkụ: imikpu bolt ahụ n'ime zinc a wụrụ awụ iji kwalite nguzogide corrosion ya. Uru ya bụ na ọ nwere ikike mgbochi corrosion siri ike na ọ dịghị mfe ịdapụ, ma mwepu bụ na elu adịghị mma zuru oke.
Electrorating: na-emikpu ihe mkpuchi ahụ n'ime electrolyte ma na-etinye akwa ọla n'elu ihe mkpuchi ahụ site na electrolysis iji meziwanye nguzogide corrosion na ọdịdị ya.. Uru ya bụ na elu dị nro ma mara mma, ma mwepu bụ na ọ na-adịkarị mfe iji hydrogen embrittlement.
Dacro: na-emikpu bolts n'ime ngwọta zinc-aluminom, n'ịhụ na bolt zuru ezu na kọntaktị na ngwọta tupu ịkwapụ ihe ngwọta na-agafe agafe na ihicha ya. Tinyegharịa usoro a dị n'elu 2-4 ugboro na-etolite a ok film n'elu nke bolt, imezu mmetụta nke anticorrosion. Uru nke usoro a bụ na elu dị mma ma ọ dịghị mfe ịdapụ, ma mwepu bụ na ọ naghị adịte aka ma na-adị mfe kpụchaa ya. Ugbu a enwere usoro chromium na-enweghị hexavalent, nke na-emetụta gburugburu ebe obibi.