Ngongo maitai me nga paipa mo nga kohu pehanga teitei (Waro, Alloy)
Tirohanga
Paerewa: GB/T5310-2017
Rōpū Kōeke: 20G, 20MnG, 25MnG, aha atu
Te Matotoru: 1 - 100 mm
Diamita o waho(A tawhio): 10 - 1200 mm
Roa: Te roa u, te roa matapōkere ranei (6-12m)
Waihanga Wāhanga: Porowhita
Wāhi Taketake: Haina
Tiwhikete: ISO9001:2008
Alloy Kaore ranei: Alloy
Taupānga: Pipe Kohua
Maimoatanga Mata: Ka rite ki te hiahia a te kaihoko
Hangarau: Huri wera
Te maimoatanga wera: Te whakahiato/whakatika
Paipa Motuhake: Pipa Kohua
Te Whakamahinga: Kohua me te Heat Exchanger
Whakamātautau: ECT/UT/Hydrau Static
Taupānga
Kei te whakamahia te nuinga ki te hanga waro hanganga maitai teitei, maitai hanganga koranu me te kowiri wera-ātete maitai putorino maitai tuitui mo te pehanga teitei me runga ake mamaoa kohu putorino.
Ko te nuinga o te whakamahi mo te pehanga teitei me te ratonga pāmahana teitei o te kohua (Superheater ngongo, ngongo whakamahana, te ngongo aratohu hau, te ngongo mamaoa matua mo nga kohua teitei me te teitei teitei). I raro i te mahi o te hau rewharewha teitei me te kohu wai, ka waikura te ngongo me te waikura. E hiahiatia ana kia nui te roa o te paipa rino, he nui te aukati ki te waikura me te waikura, me te pai o te hanganga.
Koeke Matua
Koeke o te waro hanganga maitai teitei: 20g, 20mng, 25mng
Te karaehe o te maitai hanganga koranu: 15mog,20mog,12crmog,15crmog,12cr2mog,12crmovg,12cr3movsitib, etc
Te karaehe o te rino atete wera-waikura: 1cr18ni9 1cr18ni11nb
Waahanga matū
| Kōeke | Kounga Karaehe | Taonga matū | ||||||||||||||
| C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | Nd | Mo | B | Als" | ||
| kaua e nui ake | kaua e iti iho i te | |||||||||||||||
| Q345 | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.30 | 0.50 | 0.20 | 0.012 | 0.10 | — | — | |||
| B | 0.035 | 0.035 | ||||||||||||||
| C | 0.030 | 0.030 | 0.07 | 0.15 | 0.20 | 0.015 | ||||||||||
| D | 0.18 | 0.030 | 0.025 | |||||||||||||
| E | 0.025 | 0.020 | ||||||||||||||
| Q390 | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.20 | 0.20 | 0.3. | 0.50 | 0.20 | 0.015 | 0.10 | — | — |
| B | 0.035 | 0.035 | ||||||||||||||
| C | 0.030 | 0.030 | 0.015 | |||||||||||||
| D | 0.030 | 0.025 | ||||||||||||||
| E | 0.025 | 0.020 | ||||||||||||||
| Q420 | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.2. | 0.20 | 0.30 | 0.80 | 0.20 | 0.015 | 0.20 | — | — |
| B | 0.035 | 0.035 | ||||||||||||||
| C | 0.030 | 0.030 | 0.015 | |||||||||||||
| D | 0.030 | 0.025 | ||||||||||||||
| E | 0.025 | 0.020 | ||||||||||||||
| Q460 | C | 0.20 | 0.60 | 1.80 | 0.030 | 0.030 | 0.11 | 0.20 | 0.20 | 0.30 | 0.80 | 0.20 | 0.015 | 0.20 | 0.005 | 0.015 |
| D | 0.030 | 0.025 | ||||||||||||||
| E | 0.025 | 0.020 | ||||||||||||||
| Q500 | C | 0.18 | 0.60 | 1.80 | 0.025 | 0.020 | 0.11 | 0.20 | 0.20 | 0.60 | 0.80 | 0.20 | 0.015 | 0.20 | 0.005 | 0.015 |
| D | 0.025 | 0.015 | ||||||||||||||
| E | 0.020 | 0.010 | ||||||||||||||
| Q550 | C | 0.18 | 0.60 | 2.00 | 0.025 | 0,020 | 0.11 | 0.20 | 0.20 | 0.80 | 0.80 | 0.20 | 0.015 | 0.30 | 0.005 | 0.015 |
| D | 0.025 | 0,015 | ||||||||||||||
| E | 0.020 | 0.010 | ||||||||||||||
| Q620 | C | 0.18 | 0.60 | 2.00 | 0.025 | 0.020 | 0.11 | 0.20 | 0.20 | 1.00 | 0.80 | 0.20 | 0.015 | 0.30 | 0.005 | 0.015 |
| D | 0.025 | 0.015 | ||||||||||||||
| E | 0.020 | 0.010 | ||||||||||||||
| Haunga nga tohu Q345A me te Q345B, me uru ki te rino tetahi o nga huānga witi parakore Al, Nb, V, me Ti. E ai ki nga hiahia, ka taea e te kaiwhakarato te taapiri i tetahi, neke atu ranei nga huānga witi parakore, te uara teitei Me tutuki nga whakaritenga i te tepu. Ina whakakotahihia, Nb + V + Ti <0.22% °Mō ngā kōeke Q345, Q390, Q420 me Q46O, Mo + Cr <0.30% oKa whakamahia ia kōeke o Cr me Ni hei huānga toenga, ko te ihirangi o Cr me Ni kia kaua neke atu i te 0.30%; i te wa e tika ana kia taapirihia, me tutuki ona ihirangi ki nga whakaritenga o te teepu, ma te kaiwhakarato me te kaihoko mai ranei e whakatau ma te whakawhitiwhiti korero. kaua e mahia. Mēnā ka tāpirihia te Al, Nb, V, Ti me ētahi atu huānga koranu me te whakatika hauota ki te maitai, karekau he iti te ihirangi hauota. Ko te ihirangi whakatika hauota kia tohua i roto i te tiwhikete kounga.'I te wa e whakamahi ana i te konumohe katoa, ko te katoa o te ihirangi konumohe AIt ^ 0.020% B | ||||||||||||||||
Taonga Miihini
| No | Kōeke | Taonga Miihini | ||||
|
|
| Tana | Tukunga | Whakaroa | Pānga (J) | Te ringaringa |
| 1 | 20G | 410- | ≥ | 24/22% | 40/27 | — |
| 2 | 20MnG | 415- | ≥ | 22/20% | 40/27 | — |
| 3 | 25MnG | 485- | ≥ | 20/18% | 40/27 | — |
| 4 | 15MoG | 450- | ≥ | 22/20% | 40/27 | — |
| 6 | 12CrMoG | 410- | ≥ | 21/19% | 40/27 | — |
| 7 | 15CrMoG | 440- | ≥ | 21/19% | 40/27 | — |
| 8 | 12Cr2MoG | 450- | ≥ | 22/20% | 40/27 | — |
| 9 | 12Cr1MoVG | 470- | ≥ | 21/19% | 40/27 | — |
| 10 | 12Cr2MoWVTiB | 540- | ≥ | 18/-% | 40/- | — |
| 11 | 10Cr9Mo1VNbN | ≥ | ≥ | 20/16% | 40/27 | ≤ |
| 12 | 10Cr9MoW2VNbBN | ≥ | ≥ | 20/16% | 40/27 | ≤ |
Te manawanui
Te Matotoru o te Patu me te Diamita o waho:
Mena karekau he whakaritenga motuhake, ka tukuna te paipa kia rite ki te diameter o waho me te matotoru o te pakitara. Ka rite ki te pepa whai ake
| Te tohu whakarōpūtanga | Tikanga o te hanga | Te rahi o te paipa | Te manawanui | |||
| Koeke noa | Koeke teitei | |||||
| WH | Hot Rolled（extrude）) paipa | Tikanga o waho Diameter （D） | <57 | 士 0.40 | ±0,30 | |
| 57 〜325 | SW35 | ±0.75%D | ±0.5%D | |||
| S>35 | ±1%D | ±0.75%D | ||||
| >325-6.. | + 1%D ranei + 5.Tangohia kia iti rawa一2 | |||||
| >600 | + 1%D ranei + 7,Tangohia kia iti ake一2 | |||||
| Te Matotoru o te Taiepa （S） | <4.0 | ±|・丨） | ±0.35 | |||
| >4.0-20 | + 12.5%S | ±10%S | ||||
| >20 | DV219 | ±10%S | ±7.5%S | |||
| 心219 | + 12.5%S -10%S | 土10%S | ||||
| WH | Pupa roha wera | Tikanga o waho Diameter (D) | katoa | ±1%D | ±0.75%. |
| Te Matotoru o te Taiepa (S) | katoa | + 20%S -10%S | + 15%S -io%s | ||
| wc | Tuhia matao(whakatakahia) Ppipe | Tikanga o waho Diameter (D) | <25.4 | ±'L1j | — |
| >25.4 〜4() | ±0.20 | ||||
| >40 〜50 | |:0.25 | — | |||
| >50 〜60 | ±0.30 | ||||
| >60 | ±0.5%D | ||||
| Te Matotoru o te Taiepa (S) | <3.0 | ±0.3 | ±0.2 | ||
| >3.0 | S | ±7.5%S |
Roa:
Ko te roa o nga paipa maitai ko te 4 000 mm ~ 12 000 mm. I muri i te whakawhitiwhiti whakaaro i waenganui i te kaiwhakarato me te kaihoko, me te whakakii i te kirimana, ka taea te tuku paipa rino me te roa nui atu i te 12 000 mm ranei te poto ake i te I 000 mm engari kaua e poto ake i te 3 000 mm; te roa poto Ko te maha o nga paipa maitai iti iho i te 4,000 mm engari kaua e iti iho i te 3,000 mm kaua e neke ake i te 5% o te tapeke o nga paipa rino ka tukuna
Taumaha tuku:
I te wa e tukuna ana te putorino maitai kia rite ki te diameter o waho me te matotoru o te pakitara ingoa, te diameter o roto ranei me te matotoru o te pakitara ingoa, ka tukuna te paipa maitai kia rite ki te taumaha. Ka taea hoki te tuku kia rite ki te taumaha o te ariā.
Ka tukuna te putorino maitai kia rite ki te diameter o waho me te matotoru o te pakitara iti, ka tukuna te putorino maitai kia rite ki te taumaha tonu; ka whiriwhiri nga roopu tuku me te tono. A ka tohuhia i roto i te kirimana. Ka taea hoki te tuku i te putorino maitai kia rite ki te taumaha o te whakaaro.
Taumaha:
E ai ki nga whakaritenga a te kaihoko, i muri i te korerorero i waenga i te kaiwhakarato me te kaihoko, me te kirimana, ko te rereke i waenga i te taumaha me te taumaha o te putorino maitai tuku ka tutuki nga whakaritenga e whai ake nei:
a) Pupa maitai kotahi: ± 10%;
b) Ia puranga paipa maitai me te iti rawa o te 10 t: ± 7.5%.
Whakaritenga Whakamatau
Whakamātautau Hydraustatic:
Ko te putorino maitai me whakamatauhia ma te hydraulicly tetahi. Ko 20 MPa te pēhanga whakamātautau mōrahi. I raro i te pehanga whakamatautau, ko te wa whakapumau kia kaua e iti iho i te 10 s, kaua hoki te putorino maitai e pakaru.
I muri i te whakaae a te kaiwhakamahi, ka taea te whakakapi i te whakamatautau waipēhi e te whakamātautau eddy nāianei, te whakamātautau rerenga rerenga autō ranei.
Whakamātautau kore kino:
Ko nga paipa e hiahia ana kia nui ake te tirotiro me tirotirohia e tetahi i tetahi. I muri i te whiriwhiringa me kii te whakaaetanga o te roopu me te tohu i roto i te kirimana, ka taea te taapiri atu i etahi atu whakamatautau kore-kino.
Whakamātautau Whakapapa:
Ko nga ngongo he nui ake i te 22 mm te diameter o waho ka tukuna ki te whakamatautau papatahi. Karekau e kitea he delamination, he wahi ma, he poke ranei i te wa o te whakamatautau.
Whakamātautau mura:
E ai ki nga whakaritenga a te kaihoko me te kii i roto i te kirimana, ka taea te mahi i te putorino maitai me te diameter o waho ≤76mm me te matotoru o te taiepa ≤8mm ka taea te whakamatautau mura. I mahia te whakamatautau i te pāmahana rūma me te taper o 60 °. I muri i te pupuhi, ko te reiti mura o te diameter o waho me tutuki nga whakaritenga o te tepu e whai ake nei, me nga mea whakamatautau kaua e whakaatu i nga pakaru, i nga pakaru ranei.
| Momo maitai
| Reiti mura ahi te diameter o waho o te paipa maitai/% | ||
| Diameter roto/Diameter waho | |||
| <0.6 | >0.6 〜0.8 | >0.8 | |
| He maitai hanganga waro kounga teitei | 10 | 12 | 17 |
| Te maitai koranu hanganga | 8 | 10 | 15 |
| •Ka tatauhia te diameter o roto mo te tauira. | |||
Taipitopito Hua
