I roto i te hangarau me te hanga, he mea nui te kaha. Ahakoa he porowhita i roto i te miihini motuka, he pine taumaha rānei i roto i ngā taputapu hanga, ko te kaha kume te mea e whakatau ana i te nui o te kawenga ka taea e te rauemi te tu atu i mua i te pakaru. I roto i ngā maitai koranu maha e wātea ana,4140 maitai whakarewakua rongonui mō tōna taurite whakamiharo o te kaha kume, te pakari, me te ngāwari ki te miihini.
Engari, e hia te kaha o te maitai koranu 4140—tino? I roto i tēnei tuhinga,sakysteelka ruku hōhonu ki ngā āhuatanga kume o te 4140, ka tūhuratia he aha te mea e pono ai hei rauemi mō ngā tono hanganga me ngā tono miihini uaua.
He aha te maitai koranu 4140?
Ko te 4140 hemaitai chromium-molybdenum iti-konumohee mōhiotia ana mō tōna kaha kume teitei me tōna ātete pai ki te ngenge. He whānuitia te whakamahinga i roto i te hanga, te miihini, te taputapu, me ngā wāhanga taumaha.
Ko ngā hanganga matū matua o te 4140 ko:
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Waro:0.38% – 0.43%
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Konupora:0.80% – 1.10%
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Molibdenuma:0.15% – 0.25%
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Manganēhi:0.75% – 1.00%
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Hiraka:0.15% – 0.35%
Ka whakarei ake ēnei huānga whakarewa i te pakari me te kaha, ka waiho te 4140 hei tetahi o ngā maitai tino pono mō te whakamahinga hanganga.
Te Mārama ki te Kaha Kume
Te kaha o te kumee pā ana ki te nui rawa o te ahotea kume (tō, totoro rānei) ka taea e te rauemi te tu atu i mua i te hinganga. I te nuinga o te wā ka inehia i roto ingā megapascal (MPa) or pauna mō ia inihi tapawha (psi)Ko te tikanga o te kaha kume teitei ake ka taea e te rauemi te tu atu i ngā kaha nui ake i mua i te hurihanga, te pakaru rānei.
Te Kaha Kume o te Rino Koranu 4140
Ko te kaha kume o te maitai 4140 e whakawhirinaki ana ki te āhua o tōna maimoatanga wera:
1. Āhua Whakamahana
I tōna āhua ngohengohe rawa (kua whakawerahia), ko te maitai 4140 te tikanga e tuku ana i:
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Kaha Kume:655 – 850 MPa
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Te Kaha o te Hua:415 – 620 MPa
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Te pakeketanga:~197 HB
2. Āhua Whakapūmau
I muri i te whakatikatika, ka ōrite ake te hanganga o te maitai, ka whakarei ake i ngā āhuatanga ā-pūkaha:
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Kaha Kume:850 – 1000 MPa
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Te Kaha o te Hua:650 – 800 MPa
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Te pakeketanga:~220 HB
3. Kua tineia, kua whakamahanatia (Q&T)
Koinei te āhuatanga tino noa mō ngā tono mahi-teitei:
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Kaha Kume:1050 – 1250 MPa
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Te Kaha o te Hua:850 – 1100 MPa
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Te pakeketanga:28 – 36 HRC
At sakysteel, ka tukuna e mātou4140 maitai whakarewai roto i ngā momo āhuatanga wera-maimoatia, kua arotauhia kia ōrite ki ngā whakaritenga kaha motuhake mō ngā ahumahi rerekē.
He aha i tino teitei ai te kaha kume o te 4140?
Ko ngā āhuatanga matua mō te kaha kume teitei o te 4140 ko:
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Te Ihirangi o te Konupora:Tāpirihia te pakeketanga me te ātete ki te kakahu
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Molibdenuma:Ka whakapai ake i te kaha i ngā pāmahana teitei, ka whakarei ake hoki i te pakari
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Ngāwari o te Maimoatanga Wera:Ka whakarite i te hanganga moroiti kia rite ki te kaha me te pakari e hiahiatia ana
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Taumata Waro Taurite:He pai te whakakotahitanga o te kaha me te ngāwari
Mā ēnei āhuatanga ka taea e te 4140 te mahi pai ake i te nuinga o ngā maitai waro, tae atu ki ētahi maitai taputapu ina tae mai ki te kaha kume i raro i te kawenga.
He aha te whakatauritenga o te 4140 ki ētahi atu maitai?
4140 vs 1045 Waro maitai
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He maitai waro waenga te 1045, ā, he kaha kume kei waenganui i te 570 – 800 MPa.
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Ka tukuna e te 4140 te kaha ake o te 30% ki te 50%, ina koa ka tukuna ki te wera.
4140 vs 4340 Rino
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Kei roto i te 4340 te nikara, e whakanui ana i te pakari me te ātete ki te ngenge.
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Ahakoa he kaha ake te pakari o te 4340, he iti ake te ohanga o te 4140 me te rite tonu o te mahi kume.
4140 vs Kowiri tira (hei tauira, 304, 316)
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He ātete ki te waikura ngā maitai kore waikura austenitic engari he iti ake te kaha kume (te tikanga ~500 – 750 MPa).
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E tata rua te kaha o te 4140 engari me tiaki mai i te waikura i roto i ngā taiao kaha.
Ngā tono e whakawhirinaki ana ki te kaha kume o te 4140
Nā te kaha o te kume, ka whakamahia whānuitia te 4140 ki ngā wāhanga e tu atu ana ki ngā kawenga taumaha, ki ngā kaha hihiri rānei. Ko ngā whakamahinga noa ko:
Aunoa
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Ngā toki taraiwa
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Ngā porowhita
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Ngā wāhanga whakatārewatanga
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Ngā taputapu kore
Hinu me te Hau
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Ngā kara wiri
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Ngā hononga taputapu
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Ngā tinana takirere
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Ngā taputapu waipēhi
Rererangi
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Ngā wāhanga taputapu taunga
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Ngā pūmau tautoko miihini
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Ngā hononga tika
Utauta me te Mate
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Ngā patu me ngā mate
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Ngā kaipupuri taputapu
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Ngā taputapu hanga
Ko te kaha ki te tu atu i ngā kawenga pūmau me ngā kawenga hurihuri ka puta4140te poutokomanawa o ngā tini wāhanga nui o ngā ahumahi o te ao.
Ngā Āhuatanga e Pā Ana ki te Kaha Kume i roto i te Mahi
Ka rerekē pea te kaha kume ariā o te 4140 i roto i ngā tono o te ao tūturu i runga i:
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Rahi o te wāhanga:Tērā pea ka puhoi ake te whakamatao o ngā tapanga nunui i te wā e whakamahanatia ana, ka whakaiti i te pakeketanga.
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Whakamutunga mata:Ka taea e ngā whakaotinga taratara te whakapiki i te ahotea.
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Ngā mahi mīhini:Ka taea e te miihini kore tika te whakanui ake i te kukū o te ahotea.
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Te whakahaere i te maimoatanga wera:Ka pā tika te pāmahana tinei me te whakamahana tika ki te kaha whakamutunga.
At sakysteel, ka whakamahia e mātou te mana kounga tino pakari i te wā e tukatukahia ana te wera me te miihini hei whakarite i ngā āhuatanga kume tino pai me te ōrite i roto i ā mātou hua maitai koranu 4140 katoa.
Te Whakamātautau me te Tiwhikete
Ko te kaha o te kume ka inehia mā te whakamahi i tētahimīhini whakamātautau whānui (UTM)e whai ana i ngā paerewa ASTM, ISO rānei. Ka totorohia te tauira maitai kia pakaru rā anō, kātahi ka tuhia ngā hua.
KatoasakysteelKa taea te tuku rauemi maitai 4140 me:
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Ngā tiwhikete EN 10204 3.1
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Ngā pūrongo whakamātautau mīhini
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Ngā raraunga hanganga matū
Mā tēnei ka mārama katoa, ka tutuki hoki ngā whakaritenga o te ahumahi.
Ngā Whakaaro Whakamutunga
4140 maitai whakarewaKo tētahi o ngā maitai tino kaha, tino maha ngā whakamahinga, e wātea ana i te mākete o te ao. Me te kaha kume neke atu i te 1000 MPa i roto i ngā āhuatanga kua tukatukahia, ka tutuki i a ia ngā whakaritenga uaua o ngā tono hanganga, miihini, me ngā taputapu.
Ina te mea nui rawa atu te kaha, te manawanui, me te mahi,Ka tukuna e 4140—āsakysteelmā tēnei ka whiwhi koe i ngā rauemi kounga teitei anake, kua whakamatautauria, kua whakamanahia hoki hei whakamarie i a koe.
Wā tuku: Hurae-29-2025