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.

A na-akpọ arịlịka aka nche anwụ n'ihi na njedebe nke bolt bụ nko J-ụdị (dị ka aka nche anwụ). Ọ nwere mkpanaka eri na nko J dị ka ya. The nko akụkụ na-kpamkpam agbakwunyere na ihe na-enye sere-na-eguzogide.

Arịlịka efere welded na-enwe mkpara eri, ihe mgbochi welded na ọgịrịga siri ike. A na-edozi pad ahụ na bolts site na ịgbado ọkụ ka ọ bụrụ ihe ejikọtara ọnụ nke "bolt + pad". Mpempe akwụkwọ ahụ na-abawanye mpaghara kọntaktị na ihe ahụ, na-agbasa ibu ma na-eme ka nkwụsi ike.

Akpọrọ arịlịka nke nwere ụdị 7 aha n'ihi na otu njedebe nke bolt na-ehulata n'ụdị "7". Ọ bụ otu n'ime ụdị bolts arịlịka kachasị. Ọdịdị ya gụnyere ahụ mkpara eri na nko L. A na-eli akụkụ nko ahụ na ntọala ihe na-ejikọta ya na akụrụngwa ma ọ bụ nchara nchara site na nut iji nweta nkwụsi ike.