Kūʻai palapala hōʻoia o nā mea hana paipu kila kila 42CrMo
ʻO ke kumu o 42CrMo paipu kila ʻole: ʻo ke kila kūikawā no ke alahaka ʻo "42CrMo", ʻo ke kila kūikawā no ke kāʻei kaʻa ʻo "42CrMo", a ʻo ke kila kūikawā no ka moku kaomi ʻo "42CrMo". Hoʻomaikaʻi kēia ʻano kila i nā waiwai mechanical o ke kila ma ka hoʻoponopono ʻana i ka ʻike kalapona (c). No laila, e like me ka maʻiʻo kalapona, hiki ke hoʻokaʻawale ʻia kēia ʻano kila i: ke kila kalapona haʻahaʻa - ʻoi aku ka nui o ke kalapona ma lalo o 0.25%, e like me 10 a me 20 kila; Medium carbon steel - ʻo ka maʻiʻo kalapona ma waena o 0.25 ~ 0.60%, e like me 35 a me 45 kila; Ke kila kalapona kiʻekiʻe - ʻoi aku ka nui o ka ʻike kalapona ma mua o 0.60%. ʻAʻole hoʻohana mau ʻia kēia ʻano kila i ka hana ʻana i nā paipu kila.
ʻO 42CrMo kekahi ʻano kila. Ua kapa ʻia ke kila kila. Ua kapa ʻia ke ala ʻo Q345B. ʻO nā mea like me Q345A, Q345C a me Q345E. ʻO ka hōʻailona papa maikaʻi a, B, C, de e hōʻike ana ʻaʻole pono ka hoʻāʻo hopena. ʻO ka mahana hoʻokolohua hopena ʻo + 20 ° 0 ° a 20 ° 40 ° ABCD e hōʻike ana i ka pae maikaʻi Q235. Hoʻokaʻawale ʻia ka papa maikaʻi i ʻehā mau papa A, B, C a me D. mai a a i D e hōʻike ana i ka maikaʻi mai ka haʻahaʻa a i ke kiʻekiʻe.
A - hāʻawi s, P, C, Mn, Si chemical haku mele 'ana a me Fu, FY δ 5（ δ 10), 1800 anu ho'āʻo kulou hiki ke hoʻolako e like me ka mea kūʻai mai e pono ai, akā,ʻaʻohe hopena ikehu hooponopono, a me ka carbon maʻiʻo. ʻAʻole lawe ʻia ka ʻike manganese ma ke ʻano o ka lawe ʻana.
B - hāʻawi s, P, C, Mn, Si chemical haku mele a me Fu, FY δ 5（ δ 10) , anu 180 ' hoao. Hāʻawi pū ʻia ka ikehu hopena AK ≥ 27j ma + 200C
C - ma kahi o nā koi o ka papa B, hāʻawi pū ʻia ka ikehu hopena AK ≥ 27j ma 00C.
D - ma waho aʻe o nā koi o ka pae B, hāʻawi pū ʻia ka ikehu hopena AK ≥ 27j ma - 200C. E - ma waho aʻe o nā koi o ka pae B, hāʻawi pū ʻia ka ikehu hopena AK ≥ 27j ma - 400C. Hōʻike hana wela
ʻO ka mahana wela he 1150 ~ 1200 ° C, ʻo ka mahana hoʻomaka ʻo 1130 ~ 1180 ° C, a ʻo ka wela hopena he> 850 ° C, φ> Hoʻomaha mālie ma 50mm.
ʻO ka mahana maʻamau ʻo 850 ~ 900 ° C, a hoʻokuʻu ʻia ka umu no ka hoʻoluʻu ea.
Kiʻekiʻe wela tempering kikoʻī
ʻO ka mahana wela he 680 ~ 700 ° C, a hoʻokuʻu ʻia ka umu no ka hoʻoluʻu ea.
Preheating mahana 680 ~ 700 ° C, quenching mahana 840 ~ 880 ° C, aila hooluolu, tempering mahana 580 ° C, wai hooluolu a aila hooluolu, paakiki ≤ 217hbw.
ʻO nā kikoʻī no ka hoʻoikaika ʻana a me ka hoʻoikaika ʻana i ka mālama ʻana ma ka hoʻopau ʻana i ka mahana wela
ʻO ke ana wela 900 ° C, wela wela 560 ° C, paʻakikī (37 ± 1) HRC
ʻO nā kikoʻī no ka induction quenching a me ka tempering
Quenching wela 900 ° C, tempering wela 150 ~ 180 ° C, paakiki 54 ~ 60HRC.
