He maitai koranu rongonui te maitai 4140 e mōhiotia ana mō tōna kaha, tōna pakari, me tōna maha o ngā mahi. Nō te whānau maitai chromium-molybdenum, e tuku ana i tētahi huinga ahurei o ngā āhuatanga miihini e pai ai mō ngā tono ahumahi. He whānuitia te whakamahi a ngā miihini, ngā kaihanga, me ngā kaihanga i tēnei maitai mō ngā mea katoa mai i ngā wāhanga motuka ki ngā wāhanga mīhini.
I roto i tēnei tuhinga SEO, ka whakaatuhia e sakysteel tētahi tirohanga whānui mō4140 maitai, tae atu ki tōna hanganga matū, ōna āhuatanga hangarau, ōna tukanga maimoatanga wera, me ngā whakamahinga noa.
Te Whakarōpūtanga o te 4140 Rino
He rino koranu iti te 4140 e taka ana ki raro i te pūnaha whakarōpūtanga SAE-AISI. E mōhiotia ana hoki koAISI 4140, EN19 (i Ūropi), meSCM440 (i Hapani)Ko te tohu "4140" e pā ana ki te ihirangi koranu motuhake:
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"41" e tohu ana i te maitai chromium-molybdenum
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"40" e tohu ana i te nui o te waro (0.40%)
Ehara te maitai 4140 i te maitai kore waikura, nā te mea kāore i te rawaka te chromium hei ātete ki te waikura. Engari, he mea nui mō tōna kaha ā-pūkaha me tōna pakeketanga i muri i te whakamahana.
Te Hanganga Matū o te Rino 4140
Ko te hanganga matū o te 4140 te mea e whakarei ake ai ōna āhuatanga miihini. Ko ngā whānuitanga noa ko:
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Waro (C):0.38% – 0.43%
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Konukōmiuma (Kr):0.80% – 1.10%
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Manganēhi (Mn):0.75% – 1.00%
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Molibdenuma (Mo):0.15% – 0.25%
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Hiraka (Si):0.15% – 0.35%
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Whēkau (P):≤ 0.035%
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Whānariki (S):≤ 0.040%
Ka mahi tahi ēnei huānga hei whakarei ake i te pakari, te ātete ki te kakahu, me te roa o te ora, ka waiho te 4140 hei rauemi matua mō ngā wāhanga miihini uaua.
Ngā Āhuatanga Hangarau o te Rino 4140
He whānuitanga whakamiharo o ngā āhuatanga ā-pūkaha o te 4140, inā koa i muri i te maimoatanga wera tika. Kei roto i ēnei:
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Kaha Kume:Tae atu ki te 1100 MPa (160 ksi)
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Te Kaha o te Hua:Tata ki te 850 MPa (123 ksi)
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Te Toronga i te Wā Whakamutu:Tata ki te 20%
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Te pakeketanga:I te nuinga o te wā, 197 ki te 235 HB i roto i te āhua whakamahana, tae atu ki te 50 HRC i muri i te tinei me te whakamahana.
Ka rerekē ēnei uara i runga i te āhua o te maitai (pae, pereti, mea whakarewa) me te āhua o te maimoatanga wera.
Te Whakamahana i te Rino 4140
Ko te maimoatanga wera he tukanga matua hei whakapai ake i te mahi a te4140 maitaiKa taea e te maitai te whai i ēnei tukanga e whai ake nei:
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Te whakamahana
Ka whakamatao mārirehia mai i te 850°C hei whakapai ake i te ngāwari o te miihini me te whakaiti i te ahotea o roto. Ka hua ake he hanganga ngohengohe me te ngāwari ake. -
Te Whakaōrite
Ka whakamahanatia ki te 870°C hei whakapai ake i te hanganga o te kōpaka. Ka whakarato i te taurite o te kaha me te pakari. -
Te Whakamātao me te Whakamātao
Ka whakapakeketia mā te whakamahana ki te 845°C, ka whakamatao wawetia ki te hinu, ki te wai rānei, ā, muri iho ka whakapakeketia ki ngā taumata pakeke e hiahiatia ana. Ka tino whakanuia te kaha me te ātete ki te kakahu. -
Whakaora i te ahotea
I mahia i te pāmahana tata ki te 650°C hei whakaiti i ngā ahotea toenga mai i te miihini, i te whakarewa rānei.
I sakysteel, ka whakaratohia e mātou4140 maitaii roto i ngā āhuatanga wera-maimoatia i runga i ngā hiahia o te kiritaki, kia tino pai ai te mahi i roto i tō tono.
Ngā Painga o te 4140 Steel
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Te ōwehenga Kaha-ki-Taumaha Teitei:He pai mō ngā tono e pā ana ki te taumaha.
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Ātete Pai ki te Ngenge:Ka ātete ki te kawenga huringa, he pai mō ngā taputapu me ngā pou.
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Te Whakapakari Pai Rawa:Ka tino pakari i muri i te tineia.
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Te āheinga ki te mīhini:Ngāwari ki te miihini i roto i ngā āhuatanga kua whakamahanatia, kua whakapūmautia rānei.
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Āheinga whakarewa:Ka taea te whakarewa mā te whakamahana tika i mua me te maimoatanga i muri i te whakarewa.
Nā ēnei painga ka waiho te maitai 4140 hei whiringa ōhanga mō ngā tono hangarau ahotea-tiketike maha.
Ngā tono o te maitai 4140
Nā tōna kaha ā-pūkaha me tōna whānui o ngā mahi, e whakamahia ana te maitai 4140 i roto i te whānuitanga o ngā ahumahi:
Ahumahi Motuka
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Ngā toki
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Ngā porowhita
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Ngā taputapu
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Ngā hononga o te urungi
Hinu me te Hau
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Ngā kara wiri
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Ngā hononga taputapu
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Ngā tokotoko hono
Rererangi
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Ngā wāhanga taputapu taunga
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Ngā pou
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Ngā wāhanga hanganga taumaha-teitei
Mīhini Ahumahi
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Ngā hononga
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Ngā wāhanga i hangaia
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Ngā kaipupuri mate
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Ngā Miro
At sakysteel, kua tukuna e mātou4140 maitaingā hua mō ngā kiritaki puta noa i ēnei rāngai, e tuku ana i te kounga pono me te whakaritenga tika.
Te Whakataurite i te 4140 ki Ētahi Atu Rino
4140 vs. 1045 Waro maitai:
He pai ake te ātete ki te kakahu me te kaha kume o te 4140 nā ngā huānga whakarewa. He iti ake te utu mō te 1045 engari he iti ake te pakari.
4140 vs. 4340 Maitai:
He nui ake te nui o te nikara o te 4340, ā, he pai ake te pakari me te ātete ki te ngenge. He iti ake te utu o te 4140 mō te whakamahinga whānui.
4140 vs. Kowiri tira (hei tauira, 304, 316 rānei):
He ātete te maitai kore waikura ki te waikura engari he iti ake te kaha. He pai ake te 4140 mō ngā mahi taumaha me te kore e pāngia e ngā taiao waikura.
Kei te wātea ngā puka i sakysteel
E whakarato ana a sakysteel i te maitai 4140 i roto i ngā momo hua e whai ake nei:
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Ngā Pae Porowhita (Werahia, Mataohia, Tihoretia)
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Ngā Pae me ngā Pereti Papatahi
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Ngā Poraka me ngā Mowhiti Hangaia
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Ngā Pae me ngā Ngongo Poka (inā tonoa)
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Ngā papa porotaka tika-kia rite ki te rahi
Kei te wātea ngā hua katoa meNgā tiwhikete EN10204 3.1, ā, e tuku ana hoki mātou i ngā ratonga miihini CNC me te maimoatanga wera.
Whakamutunga
He maitai koranu mahi-teitei, maha ngā whakamahinga, te 4140 e tutuki ai ngā hiahia o ngā tono maha. Nā te whakakotahitanga o te kaha, te pakari, me te utu-pai, he mea pai tēnei rauemi mā ngā miihini me ngā kaihanga o te ao.
Ahakoa e hiahia ana koe ki te whakarato rauemi mata, ki ngā wāhanga kua oti rānei,sakysteelko tō hoa pono mō te maitai koranu 4140. Whakapā mai ki tā mātou tīma hangarau i tēnei rā hei matapaki i ō hiahia, kia whiwhi ai hoki i tētahi whakatau utu kua whakaritea.
Wā tuku: Hurae-29-2025