I roto i te whānau o ngā maitai kowiri tira matatau e whakamahia ana i roto i te rererangi, te tukatuka matū, me te whakaputa hiko,15-7PH maitai kore waikurae tu ana mō tōna whakakotahitanga ohe kaha teitei, he ātete pai ki te waikura, ā, he maha ngā whakamahinga mō te maimoatanga weraKo tētahi o ngā pātai hangarau e pātaihia pinepinetia ana mō tēnei koranu e pā ana ki tōnate matotoru me te whānuitanga rewa, e rua ngā tawhā matua mō ngā kaihangarau e tatau ana i te taumaha, te mahi wera, me ngā mahi whakarewa, hanga rānei.
I roto i tēnei tuhinga,SAKYSTEELe whakarato ana i tētahi whakamārama taipitopito mō tete matotoru me te whānuitanga rewa o te maitai kore waikura 15-7PH, me ngā māramatanga ki te pānga o ēnei āhuatanga ā-tinana ki te hoahoa, te hanga, me te mahi i roto i ngā taiao uaua.
1. Whakataki ki te Kowiri tira 15-7PH
15-7PH(UNS S17700, e mōhiotia ana ko te Momo 631) hete maitai kore waikura martensitic whakapakeke-whakahekei whakawhanakehia hei whakaratote kaha teitei, te pakeke, me te ātete ki te waikurame ngā āhuatanga hanga pai. Ko te ingoa "15-7PH" i ahu mai i tōna hanganga tata o15% chromium me te 7% nickel, me te konumohe i tāpirihia hei whakapakeke i te ua.
Ka pāngia te koranu e tētahi tukanga whakamahana motuhake, ka puta ngā matū pai rawa atu (te nuinga o te Ni₃Al) i roto i te anga, ka nui ake te kaha me te kore e whakaiti i te pakari. Nā tēnei, ka whakamahia whānuitia te 15-7PH i roto i:
-
Ngā puna me ngā ārai rererangi
-
Ngā taputapu tukanga matū
-
Ngā here pāmahana teitei
-
Ngā wāhanga whakaputa hiko
Te mārama ki tōnangā āhuatanga matotoru me te rewahe mea nui mō te tatau tika i te taumaha me te hoahoa tukanga wera.
2. Te Hanganga Matū o te 15-7PH
| Huānga | Ihirangi Noa (%) | Kaupapa |
|---|---|---|
| Konukōmiuma (Kr) | 14.0 – 16.0 | Te ātete ki te waikura me te kaha |
| Nikara (Ni) | 6.5 – 7.8 | Te pakari me te pumau martensitic |
| Konumohe (Al) | 0.75 – 1.5 | Te whakapakeketanga o te ua |
| Waro (C) | ≤ 0.09 | Mana whakahaere kaha |
| Manganēhi (Mn) | ≤ 1.00 | Kaiwhakakore i te paitini |
| Hiraka (Si) | ≤ 1.00 | Whakapai ake i te ātete waikura |
| Whēkau (P) | ≤ 0.04 | I puritia kia iti mō te ngāwari |
| Whānariki (S) | ≤ 0.03 | Te āheinga ki te mīhini |
| Rino (Fe) | Taurite | Huānga turanga |
He pānga tika tēnei hanganga taurite kia ruamatotorumewhānuitanga rewa, pērā i te nikara, te konukōmiuma, me te konumohe, he rerekē te taumaha ngota me ngā whanonga wera o ia ia.
3. Te mātotoru o te maitai kore waikura 15-7PH
Tematotoruo tētahi konganuku e tautuhi ana i tōna papatipu mō ia wae rōrahi, ā, he tawhā matua mō:
-
Ngā tātaitanga taumaha o ngā wāhanga
-
Te hoahoa hanganga
-
Ngā tātaitanga nekehanga wai me te pūangi
-
Te tahuritanga i waenga i te papatipu me te rōrahi i roto i te kōwhiringa rauemi
Mō te maitai kore waikura 15-7PH, teko te matotoru noa he tata ki:
7.80 karamu/cm³ (7800 kg/m³)
He tata tonu tēnei uara ki tērā o ētahi atu maitai kowiri tira martensitic me te whakapakeke-waikura pērā i te 17-4PH (7.75 g/cm³) me te 17-7PH (7.81 g/cm³).
3.1 Ripanga Tahuritanga Kiato
| Wāhanga | Uara |
|---|---|
| karamu/cm³ | 7.80 |
| kg/m³ | 7800 |
| pauna/in³ | 0.282 |
| pauna/putu³ | 487 |
Mā tēnei matotorutanga taurite ka tukuna e te 15-7PH heōwehenga kaha-ki-taumaha teitei, he mea tino ataahua mō ngā wāhanga rererangi me ngā wāhanga miihini mahi-teitei, he mea nui ia karamu.
4. Te whānuitanga whakarewa o te maitai kore waikura 15-7PH
Tewhānuitanga rewaKo te tikanga o tētahi koranu e pā ana ki te wā pāmahana i waenga i ōna pūwāhi totoka (tīmatanga o te rewa) me ōna pūwāhi wai (tino rewa). Kāore i rite ki ngā konganuku parakore, he kotahi te pūwāhi rewa, ko ngā koranu matatini pēnei i te maitai kore waikura ka rewa i runga i teawhe pāmahananā ngā rerekētanga o te pāmahana rewa o ō rātou huānga.
Mō15-7PH maitai kore waikura, tewhānuitanga rewa noako:
1400 – 1450 °C (2550 – 2640 °F)
He rite tonu tēnei awhe ki ētahi atu maitai whakapakeke-waikura-nui, he nikara-nui hoki.
4.1 Horopaki o te Awhe Rewa
-
17-4PH:1400 – 1440 °C
-
17-7PH:1400 – 1455 °C
-
15-5PH:1400 – 1450°C
Nō reira, ka uru te 15-7PH ki roto i te awhe whānui kotahi engari tera pea ka whakaatu i te totoka teitei ake nā te pānga o te konumohe, e piki ake ai te pāmahana rewa.
5. Ngā Āhuatanga e Pā Ana ki te Matotoru me te Awhe Rewa
5.1 Te Hanganga Matū
Ko ngā ōwehenga o te chromium, te nickel, me te konumohe e whakatau ana i te piri o ngā ngota me te nui o te pūngao e hiahiatia ana hei motu i ngā hononga ngota i te wā e rewa ana.
-
Konuporaka whakanui ake i te pakeketanga me te pāmahana rewa.
-
Nikaraka whakapai ake i te pakari engari ka whakaiti paku i te mātotoru.
-
Konumoheka whai wāhi ki te kaha, ā, ka paku whakapiki ake i te ira rewa.
5.2 Te Maimoatanga Wera
Ahakoa he iti noa te rerekētanga o te mātotoru i te wā e whakamahanatia ana (iti iho i te 0.1%),te whakawhānui wera me te whakawhiti āhuahangatērā pea ka pā ki te rōrahi. Ka taea e ngā maimoatanga tawhito (hei tauira, RH950, TH1050 rānei) te whakaputa i ngā huringa iti ki ngā āhua engari kāore e tino pā ki te mātotoru o te papatipu.
5.3 Ngā poke me ngā ātete whakarewa
Ka taea e ngā poke iti noa, ngā rerekētanga iti rānei o te hanganga te neke i te awhe rewa mā te 10–20°C, engari he iti noa iho ēnei rerekētanga mō ngā kaupapa hangarau.
6. Te Hiranga o te Mātotoru me te Awhe Rewa i roto i te Hoahoa Hangarau
6.1 Taumaha me ngā Tātaitanga Hanganga
Mā te mōhio ki te matotoru tika ka taea e ngā kaihoahoa te tatau tika i ngā taumaha o ngā wāhanga. Hei tauira, i roto i ngā tono rererangi, mā te whakakapi i tētahi wāhanga kowiri tira 316L (te matotoru 8.0 g/cm³) ki te 15-7PH ka whakaiti i te taumaha katoa me te whakanui ake i te kaha, te whakapai ake i te whai huatanga o te wahie me te mahi.
6.2 Ngā Mahi Maka me te Hanga
Ko te awhe rewa e whakatau ana i te pāmahana o te oumu, te hoahoa pokepokea ai, me te whakahaere whakapakeketanga. Mā te awhe rewa whaiti ka āwhina i te whakaiti i te wehenga me te porosity i te wā e whakarewaina ana.
Mō15-7PH, mā te mana rewa tino pai ka whakarite kia ōrite te hanganga moroiti me ngā āhuatanga miihini ōrite.
6.3 Te Whakarewa me te Whakapūmau
I te wā e whakarewa ana, e hono ana rānei i te 15-7PH, he mea nui te mārama ki te awhe rewa hei ārai i te tipu nui o te kakano, i te rewa wāhanga rānei i te rohe e pāngia ana e te wera. Mā te whakahaere tika ka karohia te hē, ā, ka whakarite kia pai te hononga.
6.4 Te Hoahoa Whakawhanui Wera me te Maimoatanga Wera
Mā ngā raraunga matotoru me te rewa ka āwhina i te matapae i ngā huringa rōrahi me ngā ahotea wera i te wā tukatuka. Ka whakamahia e ngā miihini ēnei raraunga hei arotau i ngā huringa whakamahana, te koroheketanga, te maimoatanga otinga rānei.
7. Whakarāpopototanga o ngā Āhuatanga Ā-tinana o 15-7PH
| Taonga | Uara Noa | Wāhanga |
|---|---|---|
| Kiato | 7.80 | karamu/cm³ |
| Awhe Rewa | 1400–1450 | °C |
| Tauwehenga Ātete | 200 | GPa |
| Te Pūngao Wera Motuhake | 460 | J/kg·K |
| Te Arahi Wera | 16.7 | W/m·K |
| Tauwehenga o te Whanuitanga | 10.9 × 10⁻⁶ | /°C |
| Ātete Hiko | 0.00074 | Ω·cm |
Nā ēnei āhuatanga ā-tinana ka 15-7PH ngā mea e ruahe whai hua te hanganga, he pumau hoki te pāmahana, e tika ana mō te mahi mai i te pāmahana raro rawa ki te tata ki te550°C (1020°F).
8. Te Whakataurite ki te Kowiri tira 17-4PH
| Taonga | 15-7PH | 17-4PH |
|---|---|---|
| Kiato (g/cm³) | 7.80 | 7.75 |
| Awhe Rewa (°C) | 1400–1450 | 1400–1440 |
| Huānga Whakamārō | Konumohe | Parahi |
| Te Pāmahana Ratonga Mōrahi (°C) | 550 | 315 |
| Kaha (Pakeke) | Tino Teitei | Teitei |
| Ātete ki te Waikura | Pai | Tino Pai |
Ahakoa he tata rite ngā mātotoru, ka tukuna e te 15-7PHkaha ake, ā, pumau ake i te pāmahana tiketike, ko te 17-4PH ia he pai ake te ātete ki te waikura me te ngāwari ake ki te whakarewa.
9. Ngā Whakamahinga Ahumahi He Mea Hiranga te Kiato me te Awhe Rewa
9.1 Te Rererangi
Nā te pai o te ōwehenga kaha-ki-taumaha mai i tōna matotoru taurite, he pai te 15-7PH mōngā here rererangi, ngā pupuhi, me ngā āraiKa taea e ngā kaihangarau te hoahoa i ngā wāhanga angiangi, māmā ake, me te kore e whakararu i te kaha kawenga.
9.2 Te Pūngao me te Whakaputa Hiko
I roto i ngā pūnaha tāpoi hau, i ngā pūnaha karihi rānei, me ātete ngā wāhanga ki te ahotea ā-mīhini me ngā pāmahana whakahaere teitei. Mā te whānuitanga rewa o te koranu ka whakarite kiangā tawhā haumaru werai ngā taiao e tata ana ki te 600 °C.
9.3 Ngā Taputapu Matū me ngā Tukanga
Mō ngā takirere, ngā puna, me ngā hononga pēhanga teitei, mā te whakakotahitanga o te mātotoru, te ātete ki te waikura, me te manawanui ki te wera ka taea te mahi pumau i raro i ngā āhuatanga huringa.
10. Tauira Tātai Taumaha mā te Whakamahi i te Kiato
E whakaatu ana tētahi tauira mahi i te whakamahinga a ngā kaihangarau i ngā raraunga kiato.
Wāhanga:He tokotoko 15-7PH, he whānui 50 mm, he roa 1 m
Rōrahi = π × (25²) × 1000 mm³ = 1.963 × 10⁶ mm³ = 1.963 × 10⁻³ m³
Taumaha = 1.963 × 10⁻³ m³ × 7800 kg/m³ =15.3 kirokaramu
He mea tino nui tēnei tatau tika i roto i te hoahoa rererangi me te hoahoa motuka, ahakoa he iti noa ngā rerekētanga papatipu ka pā ki te taurite me te whai huatanga.
11. Ngā Aratohu Tukatuka Wera i runga i te Awhe Rewa
Hei pupuri i te kounga o ngā rauemi, me whakamahana ngā tukatuka ahumahi i te pāmahana totoka ki raro iho i te pāmahana totoka o te koranu.
Mō15-7PH, ko ngā herenga pāmahana e whai ake nei e taunakitia ana:
-
Te Maimoatanga Rongoā:1035–1050 °C
-
Te koroheketanga:510–565 °C
-
Awhe Hanga:1150–900 °C
-
Ārai i te wera nui i runga ake nei:1350°C
Mā ēnei tawhā ka noho te koranu ki raro i tōna tīmatanga rewa (1400 °C), ka whakarite kia whakahaeretia te hanganga moroiti me te ārai i te rewatanga tīmatanga.
12. Ngā Painga o te 15-7PH mai i te Tirohanga Āhuatanga Tūturu
-
Kiato Taurite:E tuku ana i ngā wāhanga kaha me te kore he papatipu kore e hiahiatia.
-
Teitei o te Awhe Rewa:Ka āhei te pumau wera me te whānui o te tukatuka.
-
Te Pūmautanga o te Ahu:He iti rawa te whakapōturitanga i te wā e whakamahanatia ana.
-
Te ōwehenga pono o te kaha-ki-te-taumaha:He pai mō ngā wāhanga hanganga me ngā wāhanga neke.
-
Ngā Āhuatanga Ā-tinana Pūmau:Ka mau tonu ki ngā pāmahana ratonga whānui.
Nā ēnei painga ka waiho a 15-7PH hei tino pai mā ngā kaihangarau e whakataurite ana i te mahi, te taumaha, me te utu.
13. Te Whakahaere Kounga me te Whakamātautau i SAKYSTEEL
SAKYSTEELkia tutuki i ia puranga o te maitai kore waikura 15-7PH ngā paerewa ā-tinana me ngā paerewa ā-mīhini. Kei ia puranga:
-
Te manatoko i te kiato mā te tātari waipū, tātari ā-ahu rānei
-
Te tātaritanga hanganga irahiko
-
Te manatoko ira rewa mai i ngā whakamātautau oumu whakahaeretia
-
Te whakamātautau i te pakeke me te āhuatanga kume
-
Te tirotiro i te mata me te tirotiro i te mata
-
Tiwhikete ki ngā paerewa ASTM A693 / AMS 5520 / AMS 5659
(Tohu SAKYSTEEL)
Ka taea te whai i ia hua mā te tau wera, ā, kua tukuna mai me ngā tiwhikete EN 10204 3.1, 3.2 rānei hei whakatutuki i ngā whakaritenga o te ao.
14. Ngā Āhua Hua me te Awhe Tuku
He maha ngā āhua o te maitai kore waikura 15-7PH a SAKYSTEEL:
-
Ngā Pae me ngā Rākau Porowhita:Hurihia-wera, hangaia-whakairo, tōia-matao rānei
-
Ngā Pereti me ngā Pepa:Ngā āhuatanga kua whakawerahia, kua tawhitotia rānei
-
Ngā Waea me ngā Rīpene:Mō ngā puna me ngā diaphragm
-
Ngā Hangahanga me ngā Mowhiti:Hangaia kia rite ki te tuhi
Kei te wātea ngā hua katoa i ngā rahi paerewa me ngā rahi ritenga, he mea tapahi tika kia rite ki ngā whakaritenga a te kiritaki, me te tautoko kaipuke puta noa i te ao.
15. Te Māramatanga Hangarau Whaihua
I te tatau i ngā kawenga wera, i te hoahoa rānei i ngā pūnaha pēhanga,matotorue tautuhi ana i te koretake o te papatipu, ko tewhānuitanga rewae tautuhi ana i ngā rohe haumaru.
Hei tauira:
-
I roto i ngā miihini rererangi, ko te mātotoru te mea e whakatau ana i te taurite hurihuri.
-
I roto i ngā whakawhiti wera, mā te mōhio ki te awhe rewa ka āwhina i te karo i te pirau hanganga i te wā e wera rawa ana.
Nō reira, ehara ēnei uara e rua i ngā meka tūturu anake — engari hengā mea nui o te hangaraumō te arotautanga mahi.
16. Te Whakataurite ki ngā Rino Kowiri tira Tuku Iho
| Taonga | 15-7PH | 304 | 316L |
|---|---|---|---|
| Kiato (g/cm³) | 7.80 | 8.00 | 8.03 |
| Awhe Rewa (°C) | 1400–1450 | 1400–1455 | 1370–1400 |
| Kaha Hua (MPa) | 1100+ | 205 | 290 |
| Te Pāmahana Ratonga Mōrahi (°C) | 550 | 425 | 425 |
E whakaatu ana tēnei whakataurite i te āhuaKa tukuna e te 15-7PH te kaha tino paii te tata rite te matotoru me te kaha pāmahana teitei ake i ngā momo austenitic.
17. Ngā Whakaaroaro mō te Taiao me te Haumaru
Ko te matotoru ngawari me te ira rewa teitei o te koranu ka whai wāhi ki te pumau me te haumaru:
-
Ka whakaitihia te taumaha o te hanganga katoa e te iti o te mātotoru, ka penapena pūngao.
-
Mā te awhe rewa teitei ka whānui te haumaru wera.
-
Ka whakaitihia e te kiriata waikura pumau ngā huringa tiaki me te whakakapinga.
I roto i te ratonga mō te wā roa, ko te tikanga o tēneingā utu huringa ora iti akemete pono nui ake.
18. Ngā Paerewa Ahumahi i Tohutorohia
Ko te maitai kore waikura 15-7PH e rite ana ki:
-
ASTM A693– Pereti, Rau, me te Ripanga Kowiri tira Whakamārō-Ua
-
AMS 5659 / AMS 5520– Ngā Whakatakotoranga Rauemi Rererangi
-
UNS S17700– Pūnaha Tau Kotahi
-
Tohunga Koranu SAE 631
E tautuhia ana e ēnei paerewa ngā whakaritenga ā-tinana, ā-mīhini, me te matū, tae atu ki ngā tawhā kiato me te awhe rewa e whakamahia ana i roto i te whakahaere kounga.
19. Whakarāpopototanga o ngā Raraunga Matua
| Taonga | 15-7PH Kowiri tira |
|---|---|
| Kiato | 7.80 karamu/cm³ (7800 kg/m³) |
| Awhe Rewa | 1400 – 1450 °C (2550 – 2640 °F) |
| Kaha (Pakeke) | 1250–1450 MPa |
| Te pāmahana ratonga mōrahi | 550°C |
| Hanganga | Martensitic, whakapakeketia e te ua |
| Wāhanga Whakamārō | Ni₃Al |
| Ngā tono | Rererangi, Matū, Pūngao, Ngā Wāhanga Tika |
20. Whakamutunga
Tete matotoru me te whānuitanga rewao te maitai kore waikura 15-7PH —7.80 karamu/cm³me1400–1450 °C, ia - tautuhi i tōna ingoa rongonui heihe koranu kaha teitei, pumau ki te werae tika ana mō ngā ahumahi tino uaua.
Nā tōna taumaha taurite, tōna ātete whānui ki te wera, me tōna hanganga moroiti pumau, he rauemi pono tēnei mō ngā wāhanga e pāngia ana e te ahotea ā-pūkaha me ngā pāmahana teitei.
At SAKYSTEEL, he tohunga mātou ki te whakarato i te maitai kore waikura kua whakamanahia 15-7PH i roto i ngā pae, ngā pereti, ngā waea, me ngā āhua ritenga, kua whakamatautauria katoatia, ā, ka taea te whai i ngā paerewa o te ao. Ko tā mātou arotahi ko te tukukounga pumau, miihini tika, me te mahi ponomō ngā kiritaki puta noa i te ao.
Wā tuku: Oketopa-29-2025