Te pehanga teitei o te ngongo kohua paipa hinu paipa me te paipa hau
Te pehanga teitei putorino ， High-pressure boiler ngongo he momo ngongo kohu, no te kāwai o te ngongo maitai tuitui.Ko te tikanga hanga he rite tonu ki te putorino kore, engari he tino whakaritenga mo te momo maitai e whakamahia ana hei hanga paipa maitai.Ko te nuinga o nga wa e whakamahia ana te ngongo paoho teitei i roto i te pāmahana teitei me nga tikanga teitei, te nuinga o te waa e whakamahia ana ki te hanga i te pehanga teitei me te ultra high pressure boiler superheater ngongo, te ngongo whakamahana, te paipa, te putorino matua me etahi atu.
He iti me te reo pehanga ngongo kohu GB3087-2008, ka whakamahia te ngongo pehanga teitei GB5310-2008 ki te hanga i nga momo hanganga katoa o te pehanga iti o te pehanga iti, te ngongo wai kohua me te kohu locomotive me te ngongo wera nui, te ngongo paowa nui, te ngongo paowa iti. me te putorino pereki pereki paipa paipa waro hanganga maitai teitei te wera takai me te matao unu (hurihia) ngongo maitai tuitui.Ko te putorino maitai mo te hanganga (GB/T8162-2008) ka whakamahia mo te hanganga whanui me te hanganga miihini o te putorino maitai.
Whakatakotoranga me te ahua o te kounga: GB5310-2008 "Ngongo maitai tui mo te kōhua teitei" putorino wera hurihia diameter 22 ~ 530mm, taiepa matotoru 20 ~ 70mm.Makao unu (makao hurihia) ngongo diameter 10 ~ 108mm, taiepa matotoru 2.0 ~ 13.0mm.
Ko te putorino maitai tuitui te ahua motuhake he kupu whanui mo te putorino maitai tuitui me etahi atu ahua o te waahanga whiti engari he putorino porohita.E ai ki te ahua rereke me te rahi o te waahanga putorino maitai, ka taea te wehea ki te rite te matotoru o te pakitara motuhake te ahua o te putorino maitai (waehere D), te matotoru o te pakitara koretake te ahua o te putorino maitai (waehere BD), te rereke rereke motuhake- hanga putorino maitai tui (waehere BJ).Ko nga ngongo maitai tuitui motuhake e whakamahia nuitia ana i roto i nga waahanga hangahanga, taputapu me nga waahanga miihini.Ka whakatauritea ki te ngongo porowhita, he nui ake te waa o te ngongo o te ngongo me te waahanga waahanga, he nui ake te whakapiko me te aatete kikii, ka taea te whakaiti i te taumaha o te hanganga, ka tiakina te maitai.
Pipa Tukino Teitei, Hanga Matū
(1)GB3087-2008 " putorino maitai kore mo te kohua iti me te reo pehanga" tikanga.Tikanga whakamatautau hanganga matū e ai ki te gb222-84 me te GB223 "Nga tikanga mo te tātari matū o te Steel me te Alloy" waahanga e tika ana.
(2)GB5310-2008 "Tube Steel Seamless mo te kōhua teitei" tikanga.Ko te tikanga whakamatautau hanganga matū e ai ki te GB222-84 me te "Method for Chemical Analysis of Iron and Steel and Alloy", GB223 "Method for chemical analysis of Iron and Steel and Alloy".
(3) Ko te tirotiro i te hanganga matū o te paipa rino kohua kawemai me whakahaere i runga i nga paerewa e tika ana kua whakaritea i roto i te kirimana.
Tito matūHigh Pressure Seamless Pipe, Steel Grade
(1) Te kounga teitei o te waro hanganga maitai maitai 20G, 20MnG, 25MnG.
(2) Te maitai o te hanganga Alloy 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, etc.
(3) Waikura wera wera rino e whakamahia nuitia ana 1Cr18Ni9, 1Cr18Ni11Nb ngongo kōhua i tua atu ki te whakarite hanganga matū me ngā āhuatanga pūkaha, ki te mahi whakamātautau pēhanga wai, ki te hanga mura, whakamātautau kōpeketanga.Ko nga ngongo maitai ka tukuna i roto i nga ahuatanga maimoatanga wera.
Hei taapiri, ko te microstructure, te rahi o te witi me te paparanga decarburization o nga ngongo maitai kua oti e hiahiatia ana.
Pipa Tukino Teitei, Tikanga Tinana o
(1)GB3087-82 "ngongo maitai tuitui mo te iti me te reo pehanga kōhua" tikanga.Ko te whakamatautau tensile e ai ki te GB / T228-87, te whakamatautau waipēhi e ai ki te GB / T241-90, te whakamatautau whakamaarama kia rite ki te GB / T246-97, te whakamatautau mura e ai ki te GB / T242-97, te whakamatautau makariri i runga i te GB244-97.
(2)GB5310-95 "ngongo maitai tui mo te kōhua teitei" whakaritenga.He rite tonu te whakamatautau marumaru, te pehanga wai me te whakamatautau papatahi ki te gb3087-82;Whakamātautau pānga kia rite ki GB229-94, whakamātautau mura rite ki GB/T242-97, whakamātautau rahi witi rite ki YB/T5148-93;E ai ki a GB13298-91 mo te microstructure inspection, GB224-87 mo te decarburization layer inspection me GB / T5777-96 mo te tirotiro ultrasonic.
(3) Ko te tirotiro i nga ahuatanga o te tinana me nga tohu o nga ngongo boiler kawemai me whakahaere i runga i nga paerewa e tika ana kua tohua i roto i te kirimana.
Pipa Tuia Teitei, Nga Tikanga Whakaputa
Te pehanga teitei putorino ，He momo ngongo korekore.Ko te tikanga hanga he rite tonu ki te putorino kore, engari he tino whakaritenga mo te momo maitai e whakamahia ana hei hanga paipa maitai.E ai ki te whakamahi o te pāmahana kua wehea ki rua momo o te ngongo kōhua whānui me te teitei-pēhanga kōhua ngongo.
① High pehanga putorino tuitui ， Ina ko te pāmahana whakahaere i raro 450 ℃, te nuinga hanga te putorino kāinga o no.10 me No.20 waro herea maitai wera hurihia putorino putorino matao unu ranei.
② Te pehanga teitei putorino ，I te wa e whakamahia ana, ko te paipa kei raro i te pāmahana teitei me te pehanga teitei.I raro i te mahi o te hau rewharewha teitei me te kohu wai, ka puta te waikura me te waikura.Ko te putorino maitai e hiahiatia ana kia kaha te kaha o te kaha, te aukati waikura waikura me te pai o te hanganga moroiti.
| Paerewa | Koeke maitai | Hanganga matū (%) | |||||||||||||
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | AL | W | Nb | N | ||
| ASME SA106 | SA106B | 0.17 ~0.25 | ≥0.1 | 0.7 ~1.0 | ≤0.03 | ≤0.03 | |||||||||
| SA106C | 0.23 ~0.27 | ≥0.1 | 0.7 ~1.0 | ≤0.03 | ≤0.03 | ||||||||||
| ASME SA333 | SA333I | 0.09 ~0.12 | / | 0.7 ~1.0 | ≤0.02 | ≤0.01 | |||||||||
| SA333II | 0.09 ~0.12 | ≥0.1 | 0.9~ 1.1 | ≤0.02 | ≤0.01 | ||||||||||
| ASME A335 | SA335P11 | 0.05 ~0.15 | 0.5 ~1.0 | 0.3 ~0.6 | ≤0.03 | ≤0.03 | 1.0 ~1.5 | 0.5 ~1.0 | |||||||
| SA335P12 | 0.05 ~0.15 | ≤0.5 | 0.3~ 0.6 | ≤0.03 | ≤0.03 | 0.8 ~1.25 | 0.44 ~0.65 | ||||||||
| SA335P22 | 0.05 ~0.15 | ≤0.5 | 0.3~ 0.6 | ≤0.03 | ≤0.03 | 1.9 ~2.6 | 0.87 ~1.13 | ||||||||
| SA335P5 | ≤0.15 | ≤0.5 | 0.3~ 0.6 | ≤0.03 | ≤0.03 | 4.0 ~6.0 | 0.45 ~0.65 | ||||||||
| SA335P91 | 0.08 ~0.12 | 0.2 ~0.5 | 0.3~ 0.6 | ≤0.02 | ≤0.01 | 8.0 ~9.5 | 0.85 ~1.05 | ≤0.4 | 0.18 ~0.25 | ≤0.015 | 0.06 ~0.1 | 0.03 ~0.07 | |||
| SA335P92 | 0.07 ~0.13 | ≤0.5 | 0.3~ 0.6 | ≤0.02 | ≤0.01 | 8.5 ~9.5 | 0.3~ 0.6 | B0.001 0.006 | ≤0.4 | 0.15 ~0.25 | ≤0.015 | 1.5 ~2.0 | 0.04 ~0.09 | 0.03 ~0.07 | |
| DIN 17175 | ST45.8III | ≤0.21 | 0.1 ~0.35 | 0.4 ~1.2 | ≤0.04 | ≤0.04 | ≤0.3 | ||||||||
| 15Mo3 | 0.12 ~0.2 | 0.1 ~0.35 | 0.4 ~0.8 | ≤0.035 | ≤0.035 | 0.25 ~0.35 | |||||||||
| 13CrMo44 | 0.1 ~0.18 | 0.1 ~0.35 | 0.4 ~0.7 | ≤0.035 | ≤0.035 | 0.7 ~1.1 | 0.45 ~0.65 | ||||||||
| 10CrMo910 | 0.08 ~0.15 | ≤0.5 | 0.3 ~0.7 | ≤0.025 | ≤0.02 | 2.0 ~2.5 | 0.9 ~1.1 | ≤ 0.3 | ≤0.3 | ≤0.015 | 0.015 ~0.045 | ||||
| EN10216 -2 | WB36 | ≤0.17 | 0.25 ~0.5 | 0.8 ~1.2 | ≤0.025 | ≤0.02 | ≤0.3 | 0.25 ~0.5 | 0.5 ~0.8 | 1.0 ~1.3 | ≤0.015 | ||||
Whakaatu Hua
