Sinter hardening na MIM

Kedu ihe bụ Sinter Hardening?

Sinter hardening bụ usoro na-emepụta mgbanwe martensite n'oge oge oyi nke okirikiri sintering.

Nke ahụ bụ nkwụsịtụ na ọgwụgwọ okpomọkụ nke ntụ ntụ metallurgy ihe na-ejikọta n'ime otu usoro, nke mere na usoro mmepụta ihe na-eme ka ọ dịkwuo irè ma na-eme ka uru akụ na ụba dịkwuo mma.

Njirimara nke sinter hardening:

1) Metal plasticity na-mma nke ukwuu.N'oge gara aga, alloys dabere na nickel nke enwere ike ịmepụta naanị site na nkedo mana enweghị ike imepụta ya site n'ịkpụ akpụ site na sinter hardening die forging, si otú ahụ na-agbasa ụdị ọla ndị a na-aghagharịgharị.

2) Nguzogide nrụrụ nke ígwè dị ntakịrị.N'ozuzu, ngụkọta nrụgide nke sinter-hardening anwụ ịhịa aka bụ nanị otu akụkụ nke otu ụzọ n'ụzọ iri nke nke ndị nkịtị na-agha ụgha.Ya mere, a pụrụ ime ka ịgha ụgha buru ibu na akụrụngwa nwere obere ton.

3) High nhazi ziri ezi Sintering hardening akpụ nhazi nwere ike nweta mkpa-walled akụkụ na kpọmkwem size, mgbagwoju udi, edo ọka Ọdịdị, edo n'ibu Njirimara, obere machining ohere, na ike ga-eji ọbụna na-enweghị ịcha.Ya mere, sinter-hardening akpụ bụ ụzọ ọhụrụ iji nweta obere ma ọ bụ enweghị ịkpụ na nkenke akpụ.

Ihe na-emetụta sinter hardening tumadi gụnyere:Alloying element, jụrụ oyi, njupụta, carbon ọdịnaya.

The jụrụ ọnụego nke sinter hardening bụ 2 ~ 5 ℃ / s, na obi jụrụ ọnụego bụ nnọọ ngwa ngwa iji mee ka martensite na-adọ mgbanwe na ihe onwunwe.Ya mere, iji usoro siri ike nke sinter nwere ike ịchekwa usoro carburizing na-esote.

Nhọrọ ihe:
Sinter hardening chọrọ ntụ ntụ pụrụ iche.N'ozuzu, e nwere ụdị abụọ nke ihe metallurgy ntụ ntụ na-adabere na ígwè, ya bụ:

1) ntụ ntụ agwakọta ntụ ntụ, ya bụ, ntụ ntụ agwakọtara nke ihe mejupụtara ya na ntụ ntụ dị ọcha.Ihe ndị a na-ejikarị alloying element powder bụ ntụ ntụ graphite, ntụ ntụ ọla kọpa na ntụ ntụ nickel.Enwere ike iji mgbasa ma ọ bụ ọgwụgwọ nrapado mee ihe iji jikọta ntụ ntụ ọla kọpa na ntụ ntụ nickel n'elu ihe ndị dị nchara ígwè.

2) Ọ bụ ihe a na-ejikarị eme ihe dị ala alloy ígwè ntụ ntụ na sinter hardening.Na nkwadebe nke ntụ ntụ ígwè ndị a dị ala, a na-agbakwunye ihe ndị na-emepụta manganese, molybdenum, nickel na chromium.N'iburu n'uche na ihe niile na-agbaze na-agbaze na ígwè, ike nke ihe ahụ na-abawanye, na microstructure nke ihe mgbe sintering bụ otu.