E ai ki te GB / T9711.1 paipa paipa paipa paipa whakaritenga mahi, kia rite ki te pāmahana tempering rerekē, ka taea te wehea ki te momo e whai ake nei o te tempering:
[1] Te whakamahana mahana iti (150-250 nga nekehanga)
Ko te hanganga moroiti e whiwhi ana i te whakamahana iti o te pāmahana he martensite tempered.Ko tana kaupapa ko te whakaiti i te ahotea tinei me te pakaru o te rino whakapakeke i runga i te kaupapa o te pupuri i tona pakeke teitei me te kaha o te kakahu, kia kore ai e pakaru te pakaru o te wa e whakamahia ana.Ka whakamahia te nuinga mo nga momo taputapu tapahi waro teitei, nga taputapu ine, GB / T9711.1 pipeline paipa maitai, nga poroporo hurihuri me nga waahanga carburizing, me etahi atu, ko te pakeke i muri i te whakamarumaru ko te GENERALLY HRC58-64.
[2] Te whakamahana mahana (250-500 nga nekehanga)
Ko te hangahanga moroiti e whiwhi ana i te whakamahana ngawari he tempered trostite.Ko te kaupapa kia whiwhi i te kaha hua teitei, te rohe rapa me te uaua teitei.Na reira, te nuinga whakamahia te reira mo nga momo katoa o GB / T9711.1 paipa paipa maitai me te wera maimoatanga pokepokea ai, i muri i te tempering pakeke ko te tikanga HRC35-50.
[3] Te whakamahana pāmahana teitei (500-650 nga nekehanga)
Ko te hangahanga moroiti e whiwhi ana i te whakamahana i te pāmahana teitei he tempered sortensite.I te nuinga o te waa, ko te maimoatanga wera i honoa ki te tiini me te whakamaarama ka kiia ko te whakamaarama me te whakamaarama.Ko tana kaupapa kia pai ake nga ahuatanga miihini matawhānui o te kaha, te pakeke, te kirihou me te uaua.Na reira, ka whakamahia nuitia i roto i nga motuka, GB / T9711.1 pipeline paipa maitai, nga taputapu miihini me etahi atu waahanga hanganga nui, penei i te rakau hono, te pou, te taputapu me te rakau.Ko te pakeke i muri i te whakamahana ko te tikanga HB200-330.
Paerewa
API SPEC 5L -- American Petroleum Institute Paerewa
GB/T9711 -- Paerewa motu o Haina
Whakamahinga
Ka whakamahia mo te hāora, te wai me te putorino kawe hinu i roto i te umanga hinu me te hau maori
Te hanga matua o nga tohu paipa maitai:
B, X42, X52, X60, X65, X70 L245 L290 L320 L360 L390 L450 L485
Nga taonga miihini
| Paerewa | Taumata Hua | Koeke maitai | Te Kaha Tuku (min), Mpa | Te Kaha Tana（MPa） |
| API 5L GB/T9711.2 | PSL 1 | A L210 ranei | 210 | 335 |
| B, L245 ranei | 245 | 415 | ||
| x42, L290 ranei | 290 | 415 | ||
| X46, L320 ranei | 320 | 435 | ||
| X52 L360 ranei | 360 | 460 | ||
| X56 L390 ranei | 390 | 490 | ||
| X60, L415 ranei | 415 | 520 | ||
| X70 | 483 | 565 | ||
| PSL 2 | BR, L245R ranei | 245~450 | 415~760 | |
| X42R, L290R ranei | 290~495 | 415~760 | ||
| BN L245N ranei | 245~450 | 415~760 | ||
| X42N, L290N ranei | 290~495 | 415~760 | ||
| X46N, L320N ranei | 320~525 | 435~760 | ||
| X52N, L360N ranei | 360~530 | 460~760 | ||
| X56N, L390N ranei | 390~545 | 490~760 | ||
| X60N, L415N ranei | 415~565 | 520~760 | ||
| X65N, L450N ranei | 425~566 | 525~760 | ||
| X70, L480 ranei | 484~565 | 565~768 | ||
| X80 | 552~690 | 621~827 |
Ripanga o nga Huanga matū kei roto i te paipa
| Taumata Hua | Koeke maitai | Hanga Matū, % | ||||||||
| C | Mn | P | S | Na | IN | Nb | Of | CEpcm | ||
| PSL 1 | B, L245 ranei | ≤0.28 | ≤1.20 | ≤0.030 | ≤0.030 | - | - | - | - | - |
| x42, L290 ranei | ≤0.28 | ≤1.30 | ≤0.030 | ≤0.030 | - | - | - | - | - | |
| X46, L320 ranei | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - | |
| X52 L360 ranei | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - | |
| X56 L390 ranei | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - | |
| X60, L415 ranei | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - | |
| X70 | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - | |
| PSL 2 | BR, L245R ranei | ≤0.24 | ≤1.20 | ≤0.025 | ≤0.015 | ≤0.40 | c | c | ≤0.04 | ≤0.25 |
| X42R, L290R ranei | ≤0.24 | ≤1.20 | ≤0.025 | ≤0.015 | ≤0.40 | ≤0.06 | ≤0.05 | ≤0.04 | ≤0.25 | |
| BN L245N ranei | ≤0.24 | ≤1.20 | ≤0.025 | ≤0.015 | ≤0.40 | c | c | ≤0.04 | ≤0.25 | |
| X42N, L290N ranei | ≤0.24 | ≤1.30 | ≤0.025 | ≤0.015 | ≤0.40 | ≤0.06 | ≤0.05 | ≤0.04 | ≤0.25 | |
| X46N, L320N ranei | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.40 | ≤0.07 | ≤0.05 | ≤0.04 | ≤0.25 | |
| X52N, L360N ranei | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | ≤0.25 | |
| X56N, L390N ranei | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | ≤0.25 | |
| X60N, L415N ranei | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | - | |
| X65N, L450N ranei | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | - | |
| X70N | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | - | |
| X80 | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | ||
Te wa tuku: Mei-23-2022