20CrMnMo wela owili kila poepoe kaola

Maikaʻi thermal kaʻina hana, normalizing ma hope o ka maikai oki hana, ma hope o quenching a me ka tempering me ka maikai mechanical waiwai a me ka haʻahaʻa wela hopena toughness, ma hope o carburizing i kiʻekiʻe flexural ikaika a me ka lole pale aku, akā, maikaʻi weldability, e pono pumehana ma mua o welding, ma hope o welding pono. e huhu. Hoʻohana maʻamau i nā koi hana o ka paʻakikī o ka ʻili kiʻekiʻe, ʻo ke kūpaʻa maikaʻi ʻana i nā ʻāpana carburizing koʻikoʻi, e like me nā gears, camshafts rod,

Huina Kemika:
Kalapona C: 0.17 ~ 0.23
Si Si: 1.17 ~ 1.37
Mn Mn: 0.90 ~ 1.20
Sulfur S: e ʻae i ke koena maʻiʻo ≤0.035
Phosphorus P: e ʻae i ke koena maʻiʻo ≤0.035
Chromium Cr: 1.10 ~ 1.40
Ni: e ʻae i ke koena maʻiʻo ≤0.030
Cu: e ʻae i ke koena maʻiʻo ≤0.030
Mo Mo: 0.20 ~ 0.30
Nā Pono Mechanical:
Ka ikaika tensile σb (MPa): ≥1175 (120)
Ka ikaika hua σs (MPa): ≥885 (90)
Elongation δ5 (%): ≥10
Hoemi o ψ (%): ≥45
Ka ikehu hopena Akv (J): ≥55
Paʻa paʻakikī αkv (J / cm2): ≥69 (7)
Paʻakiki: ≤217HB
Nui laʻana: He 15mm ka nui o ka laʻana
ʻO ka mālama wela a me nā kikoʻī microstructure:
ʻO nā kikoʻī hoʻomaʻamaʻa wela: quenching 850 ℃, ʻaila hoʻoluʻu; ka hoʻoluʻu 200 ℃, hoʻoluʻu wai, hoʻoluʻu ea.
ʻO ka microstructure: martensite maʻemaʻe.
Ke kūlana hoʻouna: i ka mālama wela (normalizing, annealing or tempering) a i ʻole ka lawe ʻana i ka mālama wela, pono e kuhikuhi ʻia ke kūlana hoʻopuka ma ka ʻaelike.