ʻO ka hoʻolei kālā ʻana i ka ʻāpana o ka Chrome Molybdenum 42CrMo4 Alloy Steel

Ke kila kila kila Chrome Molybdenum 42CrMo4nā huahana hoʻolei kālāno ka makau laka o ke kaa meelectrophoresis lapaʻau ʻili.

42CrMo4 (1.7225) mai ka kikoʻī o EN 10083-3, ka mea maʻamau i mālama ʻia e QT (Queching + Tempering), i hoʻohana nui ʻia e hana i nā hoʻoheheʻe kālā. he ikaika kiʻekiʻe, paʻakikī kiʻekiʻe, paʻakiki maikaʻi, ʻoluʻolu o ka huhū, ka palena luhi kiʻekiʻe, ke kūpaʻa hopena maikaʻi ma hope o ke kinai ʻana a me ka hoʻoulu ʻana, a me ka hopena haʻahaʻa haʻahaʻa haʻahaʻa. ʻO ka helu like o 42CrMo4 he 4140 (ASTM, USA) a me 42CrMo (GB/T 3077, Kina)

42CrMo4 mau waiwai kila ma ka lumi wela ma ke ano kinaiia a me ka wela.

Ka ikaika hana:
≥900 N/mm2 (d≤16mm, t≤8mm)
≥750 N/mm2 (16 < d ≤ 40mm, 8 < t ≤ 20mm)
≥900 N/mm2 (40 < d ≤ 100mm, 20 < t ≤ 60mm)
≥900 N/mm2 (100 < d ≤ 160mm, 60 < t ≤ 100mm)
≥900 N/mm2 (160 < d ≤ 250mm, 100 < t ≤ 160mm)

Ka ikaika tensile:
1100-1300 N/mm2 (d≤16mm, t≤8mm)
1000-1200 N/mm2 (16 < d ≤ 40mm, 8 < t ≤ 20mm)
900-1100 N/mm2 (40 < d ≤ 100mm, 20 < t ≤ 60mm)
850-950 N/mm2 (100 < d ≤ 160mm, 60 < t ≤ 100mm)
750-900 N/mm2 (160 < d ≤ 250mm, 100 < t ≤ 160mm)

Elongation:≥ 10% (d≤16mm, t≤8mm)

Ka ikaika hopena o ka ho'āʻo Charpy-V-notch longitudinal:
≥35J (16 < d ≤ 250mm, 8 < t ≤ 160mm)
≥11% (16 < d ≤ 40mm, 8 < t ≤ 20mm)
≥12% (40 < d ≤ 100mm, 20 < t ≤ 60mm)
≥13% (100 < d ≤ 160mm, 60 < t ≤ 100mm)
≥14% (160 < d ≤ 250mm, 100 < t ≤ 160mm)

42CrMo4+QT paakiki ma HRC: ≥53 (ma hope o ke ahi a i ʻole ka hoʻopaʻa ʻana i ka induction)
42CrMo4 paakiki ma HBW: ≤255 (mālama ʻia no ka hoʻomaikaʻi ʻana i ka shearability); ≤241 (hoʻopili palupalu)

CʻO ke kila arbon, ke kila haʻahaʻa haʻahaʻa, ke kila kila kiʻekiʻe a me nā mea hana kila kila i hoʻohana ʻia i nā noi ʻoihana. Me ka nui o kā lākou mau māka, ke kila a me kā lākou mau ʻāpana hiki ke hoʻomaʻamaʻa ʻia e hoʻomaikaʻi i kona hua a me ka ikaika tensile a, hoʻoponopono i ka paʻakikī a i ʻole ka ductility i nā pono noi a ka ʻenekinia a i ʻole nā ​​​​mea hana mechanical i makemake ʻia.

Ke hoʻohana nei i kakaʻina hoʻolei kālā, Hiki i ka RMC casting foundry ke hālāwai i nā mea kiko'ī e like me nā kūlana ASTM, SAE, AISI, ACI, DIN, EN, ISO, a me GB. Loaʻa iā mākou ma mua o 100 mau ʻāpana ferrous a me non-ferrous a mākou e hoʻolei ai i nā ʻāpana me ka hoʻohana ʻana i nā pae hoʻolālā paʻakikī. Hoʻokumu ʻia kā mākou mea hoʻokele waiwai nui a me ka geometrically i ke ʻano ʻupena, e hōʻemi ana i ka pono no ka mīkini lua.

Hoʻohana nui ʻia ke kila kila Chromium-molybdenum i nā ʻoihana ʻoihana me nā waiwai mechanical kiʻekiʻe. ʻO ka hoʻohui ʻana o ka molybdenum i ke kila chromium hiki ke hoʻonui i ka ikaika o nā hoʻoheheʻe kila me ka loaʻa ʻole o ka hopena koʻikoʻi i ka paʻakikī o ka paʻakikī. Eia kekahi, ʻo ka chromium-molybdenum hoʻolei kila he maikaʻi loa ka hana wela kiʻekiʻe a me ke kūpaʻa ʻana. Ma hope o ka hoʻopau ʻana a me ka hoʻomaʻamaʻa ʻana a i ʻole ka hoʻomaʻamaʻa ʻana i ka wela, hiki i ka chromium-molybdenum hoʻolei kila ke loaʻa nā waiwai mechanical maikaʻi loa.

Hiki i ka Molybdenum ke hoʻomaikaʻi i ka paʻakikī o ke kila hoʻolei a hoʻemi i ka brittleness huhū o ke kila kila. Hoʻohana ʻia ke kila Chromium-molybdenum no ka hoʻoheheʻe ʻana i nā ʻāpana nui a me nā mea hao e pono ai ka paʻakikī hohonu.