Ko te maitai kore waikura 17-4 PH—e kiia nei ko UNS S17400—he koranu whakapakeke-wai e whakanuia ana mō tōna kaha whakamiharo, tōna ātete ki te waikura, me tōna ngāwari ki te tukatuka wera. Nā tōna huinga ahurei o te pakari ā-pūkaha me te pumau matū e waiho ana hei rauemi whiriwhiri puta noa i ngā rāngai tono nui pēnei i te rererangi, ngā taputapu hauora, te tukatuka matū, me te hangarau parepare.
Ina hiahiatia he huarahi kē atu, me hanga he rauemi ōrite ki17-4 PHkei roto ko ngā māka pēnei i te DIN 1.4542 me te AISI 630. He rite tonu ngā āhuatanga mahi a ēnei whakakapinga, ā, he pai mō te whānuitanga o ngā tono ahumahi.
17-4PH Kowiri tira karaehe
| ASTM/AISI | DIN | JIS | GB |
| 17-4PH/630 | 1.4542 | SUS630 | 05Cr17Ni4Cu4Nb |
Te Hanganga Matū o te Kowiri tira 17-4PH
| C | Mn | Si | P | S | Cr | Ni | Cu | Mo |
| 0.07 | 1.0 | 1.0 | 0.04 | 0.03 | 15.0-17.5 | 3.0-5.0 | 3.0-5.0 | 0.50 |
• Chromium (15-17.5%): He ātete ki te waikura.
• Nikara (3-5%): Whakarei ake i te pakari.
• Parahi (3-5%): He mea nui mō te whakapakeketanga o te ua.
• Waro (<0.07%): Ka mau tonu te ngāwari me te pakari.
Ngā Āhuatanga Hangarau Kowiri tira 17-4PH
| Rauemi | Āhua | Kukū (ksi) | Hua 0.2% tauwehenga (ksi) | Te whakaroa | Te Whakaiti i te Rohe | Te Pakari o Brinell | Te Pakari o Rockwell |
| 17-4PH | H900 | 190 | 170 | 10% | 40% | 388-444 HB | 40-47 HRC |
| H925 | 170 | 155 | 10% | 44% | 375-429 HB | 38-45 HRC | |
| H1025 | 155 | 145 | 12% | 45% | 331-401 HB | 34-42 HRC | |
| H1075 | 145 | 125 | 13% | 45% | 311-375 HB | 31-38 HRC | |
| H1100 | 140 | 115 | 14% | 45% | 302-363 HB | 30-37 HRC | |
| H1150 | 135 | 105 | 16% | 50% | 277-352 HB | 28-37 HRC |
Ngā Āhuatanga Matua o te Kowiri tira 17-4 PH
1. Kaha Tino Pai: He kaha kume whakamiharo e tukuna ana mai i te 1000 ki te 1400 MPa, he mea tino pai mō ngā tono kawenga teitei.
2. Ātete Pai ki te Waikura: He rite ki te maitai kore waikura 304, engari he pai ake te tiaki i a ia mai i te pakaru o te waikura i roto i ngā taiao uaua.
3. Ngāwari te Whakaora i te Wera: Ka taea te whakarite tika i ngā āhuatanga miihini mā roto i ngā tukanga whakapakeke-ua pērā i te H900, H1025, me te H1150.
4. Pakari Tino Pai: Ka mau tonu te pumau o te hanganga ahakoa i raro i ngā pāmahana tino kino me ngā āhuatanga ratonga uaua.
Te Maimoatanga Wera me te Whakapakari i te Ua
Ko te mea e wehewehe ana i te maitai kore waikura 17-4 PH ko tōna kaha whakamiharo ki te whakapakeke i te ua - he tukanga maimoatanga wera e tino whakarei ake ana i tana mahi miihini. Mā te whakamahana i te koranu ki ngā pāmahana tika, ā, muri iho ka whakahaeretia te pakeketanga, ka taea te whakatikatika pai i ōna āhuatanga. Ko ngā tikanga maimoatanga wera noa ko:
• H900: Ka whakarato i ngā taumata kaha teitei rawa atu.
• H1150: He ātete pai ki te waikura, he pakari ake hoki.
Mā tēnei āheinga urutau ka taea e ngā kaihangarau te whakarite i ngā āhuatanga o te rauemi kia tutuki ai ngā hiahia motuhake o te whānuitanga o ngā tono ahumahi.
Ngā tono o te maitai kore waikura 17-4 PH
Nā ngā āhuatanga pai o te maitai kore waikura 17-4 PH, he mea tino pai mō ngā momo mahi maha:
• Rererangi: Whakamahia i roto i ngā huihuinga hanganga, ngā wāhanga tāpoi, me ngā whakapiri mahi-teitei.
• Marae Hauora: He mea tino pai mō ngā taputapu pokanga tino tika me ngā taputapu whakatō pakari.
• Tukatuka Matū: Whakamahia i roto i ngā tauhohenga me ngā taputapu e tu atu ana i te pānga matū kaha.
• Hinu me te Hau: He mea noa i roto i ngā toki papu, ngā takirere, me ētahi atu wāhanga e pāngia ana e te pēhanga teitei me te waikura.
• Rāngai Ārai: E whakawhirinakihia ana mō te hanga i ngā wāhanga pakari i roto i ngā taputapu taumata-hoia.
E whakaatu ana ēnei tono i tōna pono i roto i ngā taiao wero e hira ai te kaha me te roa o te ora.
He aha koe i whiriwhiri ai i te maitai kore waikura 17-4 PH?
Ko te maitai kore waikura 17-4 PH te otinga pai rawa atu ina hiahiatia ngā tono:
• He kaha ā-mīhini tino pai hei tu atu i ngā kawenga taumaha me te ahotea.
• He ātete pono ki te waikura i roto i ngā taiao pukuriri, taumaha rānei.
• Ngā kōwhiringa maimoatanga wera ngāwari hei whakatikatika i ngā āhuatanga mahi.
Nā tōna pakari me tōna ngāwari ki te urutau, he mea pono tēnei hei whiringa puta noa i ngā ahumahi e hiahia ana ki ngā rauemi mahi nui, roa te ora.
Whakamutunga
He mea whakakotahi te maitai kore waikura 17-4 PH i te kaha teitei, te ātete pai ki te waikura, me te ngāwari ki te urutau, he kōwhiringa pai rawa atu tēnei mō ngā tono tino nui. Ki te whakaritea ki ngā momo noa pēnei i te 304 me te 316, he mea motuhake tēnei mā te pono tino pai i raro i ngā āhuatanga uaua. Nā te mea kei te wātea mai i ngā utu whakataetae—ina koa i ngā mākete pēnei i a Īnia—ka nui ake tōna rongonui mō ngā whakamahinga ahumahi kanorau, ka puta te mahi me te uara.
Wā tuku: Mei-07-2025