Pae Papatahi Rino Koranu AISI 4340 | Kaiwhakarato Rino Koranu Iti Kaha Teitei
Whakaahuatanga Poto:
Ko te Pae Papatahi Rino Ārai AISI 4340 he maitai kounga teitei, he iti te koranu e mōhiotia ana mō tōna pakari teitei, tōna kaha kume teitei, me tōna ātete pai ki te kakahu. Kei roto ko te nikara, te chromium, me te molibdenum, ā, he pai rawa atu tēnei kounga maitai mō ngā tono e hiahia ana kia kaha te ngenge me te ātete ki te pānga.
Pae Papatahi Rino Koranu 4340:
Pae Papatahi Rino Koranu AISI 4340He hua maitai papatahi kaha-teitei, he iti-te-koranu e mōhiotia ana mō tōna pakari pai, tōna kaha ki te whakapakeke hohonu, me te ātete ki te kakahu me te ngenge. E mōhiotia whānuitia ana ko 34CrNiMo6, 1.6582, 817M40 rānei i roto i ngā paerewa o te ao, kei roto i tēnei koranu te nikara, te chromium, me te molibdenum, he mea tino pai mō ngā mahi taumaha. He whānuitia te whakamahinga i roto i ngā ahumahi rererangi, motuka, me te ope taua mō te hanga i ngā toki porotaka, ngā toki, ngā wāhanga taputapu, me ngā wāhanga hanganga e hiahia ana ki te ātete pānga nui me te roa o te ora ratonga.
Ngā Whakatakotoranga o te Pae Papatahi 4340:
| Ngā Whakatakotoranga | ASTM A29 |
| Tau | 4340,G43400 |
| Roa | E ai ki te hiahia |
| Matotoru | 2mm-100mm |
| Āhua | Hurihia wera, Hurihia maeneene, Tihorea, Tāia matao, Hurihia kore-pokapū, Orohia |
| Whakaotinga Mata | Pango, Orohia |
Ngā Tohu Pae Rite o te Rino Koranu 4340:
| PAEREWA | Nama WERKSTOFF | UNS |
| 4340 | 1.6565 | G43400 |
Te Hanganga Matū o te Rākau Papatahi Rino 4340:
| Tau | C | Mn | Si | Cr | Ni | Mo |
| 4340 | 0.38-0.43 | 0.60-0.80 | 0.15-0.30 | 0.70-0.90 | 1.65-2.0 | 0.20-0.30 |
Ngā āhuatanga miihini:
| Kaha Kume | Kaha Hua (0.2% Whakakorenga) | Te whakaroa | Te pakeketanga |
| 850-1000MPa | 680-860MPa | 14% | 24-28HRC |
Whakamātautau Pae Rino UT 4340:
Ka whakamatautauria ā mātou pae rino koranu 4340 ki te ultrasonic (UT) kia pakari ai te pakari o roto, kia kore ai he hapa o te hanganga. Ka kitea e tēnei tikanga whakamātautau kore-whakangaro ngā koretake o roto pērā i ngā kapiti, ngā āputa, me ngā whakaurunga e kore e kitea e te kanohi tahanga. Ka whakahaerehia te tirotiro UT i runga anō i ngā paerewa ahumahi, kia tutuki ai i ia pae ngā whakaritenga mahi teitei mō ngā tono hangarau rererangi, motuka, me ngā mahi taumaha. Mā te mana kounga pono ka whakamanahia te ātete ngenge, te pono o te hanganga, me te whakapono o te kiritaki.
Whakamātautau PMI Pae Koranu 4340:
Hei whakarite i te whai i ngā rauemi me te tutuki i ngā whakaritenga a te kiritaki, ka whakahaerehia he whakamātautau PMI (Positive Material Identification) ki runga i ngā Pae Papatahi Rino Koranu AISI 4340 mā te whakamahi i ngā ine matatau, i ngā tātaritanga hihi-X fluorescence (XRF) rānei. Ka manatokohia e tēnei tikanga whakamātautau kore-whakangaro te hanganga matū o ia tau wera, me te whakarite kia tutuki i ngā awhe huānga koranu e hiahiatia ana pērā i te Ni, Cr, me te Mo.
Whakamātautau Pakeke Pae 4340:
Hei whakaū i te āhua o te maimoatanga wera me te manatoko i te mahi ā-ringa, ka whakahaerehia he whakamātautau pakeke ki runga i ngā Pae Papatahi Rino Koranu AISI 4340 mā te whakamahi i ngā tikanga Rockwell, Brinell rānei. Mō ngā pae kua tineihia me ngā pae kua whakamaroketia, ko te awhe pakeke noa ko te 24 ki te 38 HRC. Ka tuhia ngā uara pakeke ki ngā wāhi maha puta noa i te mata me te wāhanga whakawhiti hei whakarite i te ōritetanga. Ka āwhina ngā hua ki te whakaū i te pai o te maitai mō ngā tono uaua e uru ana ki te ahotea nui me te pānga.
Pūrongo Whakamātautau Pae Papatahi Rino 4340:
E ai ki: Paerewa ASTM A370-24a.
Ngā tono o te Pae Koranu AISI 4340
1. Ngā Huinga Taputapu Taunga Rererangi:
E whakamahia whānuitia ana i roto i te hanga i ngā wāhanga taputapu taunga pēnei i ngā pou me ngā hononga, ā, ko tōna kaha kume me tōna manawanui nui ka whakarite kia pono te mahi i raro i te ahotea nui.
2. Ngā Pūnaha Puku Waka:
E whakamahia ana i roto i te hanga o ngā wāhanga tuku nui pērā i ngā taputapu me ngā toki, ka tukuna e te AISI 4340 te pakari me te whai huatanga whakahaere tino pai i roto i ngā taiao motuka kawenga nui.
3. Ngā Wāhanga Pūnaha Waipēhi i Hangaia:
He mea whiriwhiri tēnei koranu mō ngā tono pūnaha waipēhi, ā, he tino pai ki te tu atu i te pēhanga me te ru miihini, he mea tino pai mō ngā piston, ngā rango, me ngā hononga waipēhi i hangaia.
4. Ngā Toka Whakarewa Mīhini Mahi-Teitei:
He mea pai mō te hanga porowhita i roto i ngā miihini mahi teitei, nā tōna kaha ngenge me tōna pakari tino pai ka roa te ora mahi i raro i te kawenga huringa.
5. Ngā Wāhanga Tuku Mana Ahumahi:
Whakamahia ai i roto i te hanganga o ngā taputapu me ngā toki mahi taumaha mō ngā taputapu tuku hiko, ā, ka ātete ki te pakaru me te whakarerekētanga o ngā pūnaha mīhini uaua.
He aha i whiriwhiri ai i a mātou?
•Ka taea e koe te tiki i te rauemi tino tika e rite ana ki ō hiahia i te utu iti rawa.
•Kei a mātou anō ngā utu tuku Reworks, FOB, CFR, CIF, me te tatau ki te tatau. Ka tūtohu mātou kia mahi koe i tētahi kirimana utu pai, ā, he tino ohanga tēnei.
•Ka taea te manatoko i ngā rauemi e tukuna ana e mātou, mai i te tiwhikete whakamātautau rauemi mata ki te tauākī whakamutunga mō ngā āhuatanga. (Ka whakaatuhia ngā pūrongo mēnā e hiahiatia ana)
•Ka oati mātou ki te whakautu i roto i ngā haora 24 (i taua haora anō)
•Whakaratohia te pūrongo SGS TUV.
•E tino whakapau kaha ana mātou ki te tautoko i ā mātou kiritaki. Mēnā kāore e taea te whakatutuki i ō hiahia i muri i te tirotiro i ngā kōwhiringa katoa, e kore mātou e tinihanga i a koe mā te whakaputa kupu whakaari teka, ka waihanga hononga pai ki ngā kiritaki.
•Whakarato ratonga kotahi-mutu.
Teitei te kukū maitai papatahi 4340 Te tākai:
1. He mea nui te tākai, inā koa mō ngā tukunga o tāwāhi e haere ana ngā uta mā roto i ngā huarahi rerekē kia tae atu ki te ūnga whakamutunga, nō reira ka tino aro nui mātou ki te tākai.
2. He maha ngā huarahi e tākai ai a Saky Steel i ā mātou taonga, e ai ki ngā hua. He maha ngā huarahi e tākai ai mātou i ā mātou hua, pērā i,
