
Nnukwu gasket gbara ojii dị elu bụ gasket nke na-etolite ihe nkiri ojii Fe₃O₄ oxide n'elu igwe alloy site na oxidation kemịkalụ (ọgwụgwọ blackening), na ọkpụrụkpụ ihe nkiri nke ihe dịka 0.5-1.5μm. Ya isi ihe na-abụkarị 65 manganese ígwè ma ọ bụ 42CrMo alloy ígwè, na mgbe quenching + tempering ọgwụgwọ, ike ike iru HRC35-45.
A na-agafe gaskets zinc nwere agba na-adabere na electrogalvanizing iji mepụta ihe nkiri passivation nwere agba nke egwurugwu (nwere chromium trivalent ma ọ bụ hexavalent chromium) nke nwere ọkpụrụkpụ ihe nkiri nke ihe dịka 0.5-1μm. Ọrụ mgbochi corrosion ya dị mma karịa electrogalvanizing nkịtị, na agba elu na-enwu gbaa, yana arụmọrụ yana ịchọ mma.
Electroplated galvanized gaskets bụ gaskets na-etinye akwa zinc n'elu carbon ígwè ma ọ bụ alloy ígwè site na usoro electrolytic. Ọkpụrụkpụ nke akwa akwa zinc na-abụkarị 5-15μm. N'elu ya bụ ọlaọcha na-acha ọcha ma ọ bụ na-acha anụnụ anụnụ, ọ nwekwara ma mgbochi corrosion na ịchọ mma ọrụ. Ọ bụ otu n'ime ụzọ ọgwụgwọ elu nke a na-ejikarị eme ihe na mpaghara mmepụta ihe.
Ụlọ ọrụ anyị na-emepụta ma na-ere ihe dị iche iche ike bolts, hoops, fotovoltaic ngwa, ígwè arụnyere akụkụ, wdg.