Ⅰ-He aha ka Cr12MoV Cold Working Die Steel
ʻO ke kila make hana anu Cr12MoV i hana ʻia e zhongao no ke ʻano o ke kila mea hana micro deformation kiʻekiʻe, kahi i hōʻike ʻia e ke kūpaʻa kiʻekiʻe o ka ʻaʻahu, ka paʻakikī, ka micro deformation, ke kūpaʻa wela kiʻekiʻe, ka ikaika kulou kiʻekiʻe, a me nā waiwai ʻē aʻe. ʻO ka lua wale nō ia i ke kila wikiwiki a he mea nui ia no ka stamping, ke poʻo anuanu, a me nā mea ʻē aʻe. ʻO ke kila make Cr12MoV he kila molybdenum ledeburite kalapona me ka haʻahaʻa o ke kalapona ma mua o ke kila Crl2. Hoʻohui ʻia ʻo Molybdenum a me vanadium e hoʻomaikaʻi i ka hana hana wela, ka paʻakikī o ka hopena a me ka hoʻolaha carbide o ke kila. ʻOi aku ka haʻahaʻa o ke kalapona o ke kila make Cr12MoV ma mua o ke kila make Cr12. ʻO ka hoʻohui ʻana o nā mea alloy hou e hoʻomaikaʻi i ka hanana o ka carbide ʻaʻole like. Eia kekahi, hiki i ka molybdenum a me ka molybdenum ke hōʻemi i ka hoʻokaʻawale carbide a hoʻomaikaʻi i ka paʻakikī. Hiki i ka Vanadium a me ka vanadium ke hoʻomaʻemaʻe i nā hua a hoʻonui i ka paʻakikī, no laila, he kiʻekiʻe ka paʻakikī o ke kila mold Cr12MoV a Zhongao, me kahi ʻāpana keʻa ma lalo o 400mm hiki ke kinai loa ʻia, a hiki nō ke mālama i ka paʻakikī maikaʻi a me ke kūpaʻa ʻana i ka ʻaʻahu ma 300-400 ℃. Eia kekahi, ʻoi aku ka paʻakikī o ke kila mold Cr12MoV a Zhongao ma mua o nā mea ʻē aʻe o ka papa like ma ka mākeke laulā, a ua hoʻemi nui ʻia ka hiki ke hoʻololi i ka leo i ka wā o ka quenching. No laila, ʻo kona kūpaʻa ʻana i ka ʻaʻahu kiʻekiʻe a me nā waiwai mechanical piha maikaʻi e ʻoi aku ka kūpono o ke kila mold Cr12MoV a Jinbaicheng no ka hana ʻana i nā ʻano mold like ʻole me ka ʻāpana keʻa nui, ke ʻano paʻakikī, a me ke kūpaʻa ʻana i nā hopena nui, a me nā mea hana stamping anu like ʻole ma lalo o nā kūlana hana kaumaha, e like me nā make punching, nā make trimming, nā make rolling, a pēlā aku. ʻO ka make huki hohonu o ka papa kila, ka ʻoki poepoe, nā mea hana maʻamau a me nā mea hana ana, ka make rolling thread, a pēlā aku.
Ⅱ-Alakaʻi Noi o Cr12MoV Anuanu Hana Make Steel
① Hiki ke hoʻohana ʻia ʻo Cr12MoV e hana i nā ʻano paʻakikī o nā poloka convex, concave, a me nā poloka hoʻokomo no ka punching molds me ka mānoanoa o nā mea>3mm. Manaʻo ʻia e loaʻa ka paʻakikī o 58 ~ 62HRC i ka wā e hana ai i nā molds convex a me 60 ~ 64HRC i ka wā e hana ai i nā molds concave.
② No ka hana ʻana i nā ʻōmole punch a me concave e pono ai ke kūpaʻa kiʻekiʻe o ka ʻaʻahu, ua ʻōlelo ʻia e loaʻa ka paʻakikī o 60 ~ 62HRC i ka wā e hana ai i ka punch a me 62 ~ 64HRC i ka wā e hana ai i ka ʻōmole concave.
③ No ka hana ʻana i nā ʻōmole concave kūpaʻa i ke komo ʻana i nā ʻōmole huki hohonu, ua ʻōlelo ʻia e loaʻa ka paʻakikī o 62 ~ 64HRC.
④ Hoʻohana ʻia no ka hana ʻana i nā ʻōmole convex, nā ʻōmole concave, a me nā poloka hoʻokomo e pono ai ke kūpaʻa kiʻekiʻe a me nā ʻano paʻakikī i nā ʻōmole kūlou. Manaʻo ʻia e loaʻa ka paʻakikī o 60-64HRC i ka wā e hana ai i nā ʻōmole convex, a me 60-64HRC i ka wā e hana ai i nā ʻōmole concave.
⑤ No ka hana ʻana i nā make extrusion anu a me nā make no nā ʻāpana alumini, ua ʻōlelo ʻia e loaʻa ka paʻakikī o 60-62HRC i ka wā e hana ai i nā make, a me 62-64HRC i ka wā e hana ai i nā make.
⑥ Manaʻo ʻia e hoʻohana i ka paʻakikī o 62 ~ 64HRC no nā ʻōmole convex a me concave i hoʻohana ʻia no ka hana ʻana i nā ʻōmole extrusion keleawe anu.
⑦ ʻO ka paʻakikī o 62 ~ 64HRC ka paʻakikī o nā ʻōmole convex a me concave i hoʻohana ʻia no nā ʻōmole extrusion anu kila.
⑧ ʻO nā papa kila puna me ka hapa nui o 0.65% ~ 0.80% i hoʻohana ʻia no ka hana ʻana i ke kalapona he 37 ~ 42HRC ka paʻakikī, e hāʻawi ana i ke ola a hiki i 150000 mau pōʻaiapuni.
⑨ ʻO nā papa kila puna me ka hapa nui o 0.65% a i 0.80% i hoʻohana ʻia no ka hana ʻana i ke kalapona he 37-42HRC ka paʻakikī, a me ka mālama nitriding hou, hiki i ko lākou ola lawelawe ke hiki i 400000 manawa.
Ⅲ-Ka hana ʻana o Cr12MoV Anuanu Hana Make Steel:
Nā kikoʻī no ka palupalu ʻana o ka ʻōmole extrusion anu: E pale a hoʻomehana i ka ʻōmole me nā waihona hao ma ka mahana o 760-780 ℃ no 10 mau hola, me ka hoʻomaʻalili ʻana o ka umu a me ka paʻakikī o 196HBW. Hiki ke hoʻokō maʻalahi ʻia ke kūkulu ʻana i ka extrusion anu.
ʻO ke kikoʻī no ka annealing spheroidizing isothermal maʻamau: 850-870 ℃ × 3-4 mau hola, hoʻomaʻalili ʻia i loko o ka umu i 740-760 ℃ × 4-5 mau hola o ka mālama ʻana i ka isothermal, me ka paʻakikī o ka hoʻoluʻu ʻana o ka ea ≤ 241HBW, ka papa carbide eutectic ≤ 3, ka mahana isothermal kūpono 740-76o ℃, a me ka manawa ≥ 4-5 mau hola.
ʻO ke kikoʻī no ka spheroidizing annealing: (860 ± 10) ℃ × 2-4 mau hola, ka hoʻomaʻalili ʻana o ka umu ma ka wikiwiki hoʻomaʻalili o 30 ℃/hola, (740 ± 10) ° C x 4-6 mau hola, ka hoʻomaʻalili mālie ʻana i 500-600 ℃ me ka umu, ka hoʻomaʻalili ʻana o ka ea ma hope o ka hoʻokuʻu ʻana, ka paʻakikī 207-255HBW.
Nā kikoʻī maʻamau no ka hoʻopau ʻana a me ka hoʻomaʻamaʻa ʻana: ka mahana hoʻopau ʻana he 1000-1050 ℃, ka hoʻopau ʻana i ka ʻaila a i ʻole ka hoʻopau ʻana, ka paʻakikī he 260HRC, ka mahana hoʻopau ʻana he 160-180, ka manawa hoʻopau ʻana he 2 mau hola, a i ʻole ka mahana hoʻopau ʻana he 325-375 ° C, ka hoʻopau ʻana he 2-3 mau manawa.
Haʻahaʻa ka hoʻopau ʻana a me ka mahana hoʻihoʻi haʻahaʻa: 950 ℃ -1040 ℃, ʻo ka mahana hoʻomehana ma kahi o 200 ℃, ka hoʻomehana lua.
ʻO ke kiʻekiʻe o ka hoʻopau ʻana a me ka mahana hoʻihoʻi kiʻekiʻe o ka hoʻopau ʻana: 1050-1100 ℃, ʻo ka mahana hoʻomehana ma kahi o 520 ℃, ka hoʻomehana lua. ʻO ke ʻano hoʻopaʻakikī lua i hoʻohana ʻia no ka hoʻopau ʻana i ke kiʻekiʻe a me ka hana hou ʻana kiʻekiʻe e hoʻomaikaʻi i ka paʻakikī, akā e ulu nā hua.
Hana Cryogenic: Hana ʻia ke kila Cr12MoV i ka hana cryogenic, hiki ke hoʻoulu i nā carbides ultrafine i hoʻopuehu nui ʻia mai ka martensite i hoʻopau ʻia, a laila hiki ke hoʻololi ʻia kēia mau carbides ultrafine i mau carbides ma hope o ka hoʻomehana ʻana i ka mahana haʻahaʻa 200 ℃. ʻO ka martensite me ka ʻole o ka hana cryogenic e hoʻoulu wale i kahi nui o ka carbide ma kekahi mau wahi ma hope o ke ahi puni wela haʻahaʻa.
Hoʻohana ʻo zhongao i kahi ʻano hana hoʻomehana kemika haʻahaʻa haʻahaʻa, kahi e mālama ai i ka paʻakikī kiʻekiʻe a me ke kūpaʻa ʻana o ke kila Cr12MoV. ʻEkolu mau papa hana hoʻomehana kemika haʻahaʻa i hoʻohana pinepine ʻia, ʻo ia hoʻi ka ion nitriding, gas nitrocarburizing, a me ka salt bath sulfur cyanide co nitriding, he kūpaʻa koʻikoʻi ko lākou a me ka hoʻopili ʻana, ʻo ka salt bath sulfur cyanide co nitriding ka mea maikaʻi loa.
ʻO ke ola lawelawe o ka make kaha kiʻi no nā mea hana kila kila Cr12MoV a zhongao, ma hope o ka mālama ʻana i ka nitrocarburization kinoea, hiki i ka ʻoi aku ma mua o 30000 mau ʻāpana, ʻoi aku ka lōʻihi ma mua o 10 mau manawa ma mua o nā ʻano like i mālama ʻia me ka quenching maʻamau a me ka tempering.
Ka manawa hoʻouna: Mei-23-2024