Mmepe nke ígwè na-eguzogide okpomọkụ ferritic
Mee ka Cr-1.25Cr ruo 12Cr
Tinye V, Nb, Mo, W, Co, wdg.
Usoro mmepe nke ígwè na-eguzogide okpomọkụ ferritic
Mara:
Dị ka omume mba ụwa si kwuo, ihe a na-akpọ pearlite, bainite, na martensitic nchara na-ekpo ọkụ na ọkụ ọkụ na pipeline steels na-akpọkọta ọnụ dị ka "nchara na-eguzogide okpomọkụ ferritic".
Site na ngbanwe nke usoro ike nke mba m na njikarịcha nke nrụpụta ọkụ ọkụ, arụmọrụ dị elu, ịdị ọcha, na gburugburu ebe obibi nwere nnukwu ikike na oke-parameter aghọwo ihe na-achịkwa. Site n'ịba ụba nke uzuoku (nrụgide na okpomọkụ), ọ nwere ike imeziwanye arụmọrụ ọkụ nke unit ahụ, belata oriri coal, ma belata ikuku CO2. Ka ọ dị ugbu a, ụzọ kachasị mma isi melite arụmọrụ nke nkeji ọkụ ọkụ bụ imeziwanye paramita uzuoku wee mepụta nkeji supercritical (SC) na ultra-supercritical (USC). Ka ọ dị ugbu a, enwere ihe karịrị otu narị nde kilowatt ultra-supercritical (USC) etinyere n'ọrụ na obodo m, na-ebute ụzọ n'ụwa niile na oke na ikike zuru oke.
Ndekọ ọnụ ọgụgụ na amụma nke Coal Consumption of Coal Power Coal na China site na 2010 ruo 2020
2.Main Chromium Molybdenum Steel Welding Rod Ngwaahịa
Tebụl 2 Ngosipụta arụmọrụ nke electrodes ígwè na-eguzogide okpomọkụ na-anọchite anya pearlitic
| Ihe | Isi ihe | Okpomọkụ ℃ * H | Omume igwe | ||||
| Mmụba Mpa | Ịkwụsị Mpa | Gbatịa % | Ujo J/℃ | ||||
| GER-107 | 0.5% Mo | 620*1 | 477 | 570 | 24.0 | 152/0 | - |
| GER-207 | 0.5%Cr-0.5%Mo | 690*1 | 490 | 590 | 23.0 | 143/0 | - |
| GER-307 | 1.25%Cr-0.5%Mo | 690*1 | 490 | 590 | 23.0 | 146/0 | - |
| GER-317 | 1.25%Cr-0.5%Mo-V | 730*2 | 541 | 635 | 22.5 | 166/0 | - |
| GER-407 | 2.25%Cr-1%Mo | 690*1 | 586 | 682 | 21.0 | 142/0 | - |
| GER-417 | 2.25%Cr-1%Mo-V | 720*8 | 556 | 657 | 21.0 | 145/-18 | 120/-30 |
| GER-507 | 5%Cr-0.5%Mo | 740*1 | 490 | 605 | 23.0 | 124/0 | - |
Mara:
1. Ụlọ ọrụ anyị emepụtala EXXXX-15, EXXXX-16, EXXXX-18 na usoro mkpuchi slag ndị ọzọ maka electrodes nke otu ọkwa iji gboo mkpa ahịa dị iche iche. Ihe dị n'elu na-egosi naanị arụmọrụ nke EXXXX-15 electrodes.
3.2 Ndepụta nke subcritical na super (ultra) dị oke egwu ferritic/martensitic igwe na-eguzogide okpomọkụ.
| ITEM | Ọkọlọtọ | Isi Charcter |
| GER-707 | AWS A5.5 E8015-B8 GB/T 5118 E6215-9C1M | 9% Cr-1% Mo Carbon steel core waya, isi ihe mejupụtara alloy na-agbanwe site na mkpuchi ahụ, dabara maka nkeji subcritical ike thermal, A213-T9, A335-P9 ígwè ịgbado ọkụ (akụ na ụba na ọdabara, ezigbo ọrụ) |
| GER-91 Ụdị isi | AWS A5.5 E9015-B91 GB/T 5118 E6215-9C1MV | 9%. |
| GER-91M ọgwụ akpụkpọ isi | 9%. | |
| GER-92 Ụdị isi | AWS A5.5 E9015-B92 | 9% Cr-0.5% Mo-WV-Nb-N adabara maka thermal ike supercritical nkeji, T / P 92 ígwè ịgbado ọkụ, isi alloy mejupụtara na-transitioned si isi waya, elu okpomọkụ microstructure na arụmọrụ kwụsie ike. |
| GER-93 | Ụkpụrụ anyị | 9% Cr-3% W-3% Co-Cu-V-Nb-B Ọ dabara maka ịgbado ọkụ nke elu supercritical G115 ígwè maka thermal ike ọgbọ. Ọ nwere nhazi dị mma na nkwụsi ike arụmọrụ na elu okpomọkụ. The inogide ike bụ 1.5 ugboro nke P92 ígwè, na ya iguzogide elu okpomọkụ uzuoku oxidation na corrosion dị mma karịa nke P92 ígwè. |
Ngosipụta arụmọrụ electrode
| Ihe | Isi ihe | Okpomọkụ ℃ * H | Omume igwe | |||
| Mmụba Mpa | Ịkwụsị Mpa | Gbatịa % | Ujo J | |||
| GER-707 | 9%Cr-1%Mo | 740*1 | 540 | 670 | 24.0 | 119.7 |
| GER-91 | 9%Cr-1%Mo-Nb-VN | 760*2 | 557 | 702 | 21.0 | 96.3 |
| GER-91M | 9%Cr-1%Mo-Nb-VN | 760*2 | 553 | 701 | 22.5 | 81.0 |
| GER-92 | 9%Cr-0.5%Mo-WV-Nb-N | 760*2 | 596 | 706 | 21.5 | 103.0 |
| GER-93 | 9%Cr-3%W-3% Co | 770*4 | 580 | 720 | 20.0 | 77.7 |
Mara:
1. GER-91M bụ mkpuchi mgbanwe, ya bụ, ịgbado ọkụ isi bụ nkịtị carbon ígwè isi waya, na isi alloy na-transitioned site mkpuchi. E jiri ya tụnyere GER-91 (ụdị mgbanwe waya isi), ọ nwere uru akụ na ụba ka mma yana ọ bụ nnukwu anyị ngwaahịa kachasị nke mkpanaka ịgbado ọkụ maka ike ọkụ dị oke egwu.
3.Ụdị 2015 nke ọkọlọtọ ASME chọrọ E9015-B91 electrode Mn + Ni≤1.4%, na ụdị 2017 chọrọ ≤1.2% maka metal ala. (2021 ụdị ASME kachasị ọhụrụ na-aga n'ihu na-eji ụdị 2015 nke ihe mejupụtara ASME chọrọ maka E9015-B91/B92 electrodes). Iji gboo mkpa ahịa, mkpara ịgbado ọkụ E9015-B91 na E9015-B92 ewepụtala ụdị ihe ịgbado ọkụ abụọ kwekọrọ: Mn + Ni≤1.4% na Mn + Ni≤1.2%. N'ihi na nke ikpeazụ nwere ọtụtụ ahịa ahịa, nke dị n'elu na-egosi 91/92 electrodes na-edebe metal Mn + Ni≤1.2%.
4. Ngosipụta nke usoro nyocha maka ultra-supercritical electrodes
4.1 Usoro ntozu nke P91/92 welded nkwonkwo
6. Uru na e ji mara nke anyị okpomọkụ na-eguzogide ígwè electrodes maka chrome-molybdenum ígwè.
1. Enwere ọtụtụ ụdị na ụdị niile
●Ihe mejupụtara sitere na 0.5%Mo ruo 9%Cr-3%W-3%Co.
●Jiri okpomọkụ site na 500℃ ruo 650℃.
● Ụdị mkpuchi dị iche iche na ụdị mkpuchi (EXXXX-15, EXXXX-16, EXXXX-18) nwere ike itinye n'oge dị iche iche (ụdị n'ozuzu, ụdị ike arc siri ike maka pipeline na-ewu ike).
●Ọ nwere ike izute ihe ịgbado ọkụ chọrọ nke ọtụtụ nchara Cr-Mo.
2. Ọmarịcha arụmọrụ
Ngwongwo ihe eji arụ ọrụ dị mma, arụmọrụ dị elu dị elu (oke okpomọkụ na-akpụ akpụ na njirimara ịka nká dị elu).
3. Ezi nka
Eletrọd ahụ nwere ikike nrụpụta dị mma n'ọnọdụ niile, mgba ọkụ arc kwụsiri ike, ike siri ike na ike ịfụ, obere spatter, mmiri dị mma, ụdị weld mara mma na mwepụ slag dị mfe mgbe ịgbado ọkụ.
4. Ụlọ ọrụ na-eduga
Na-arụkọ ọrụ na Suzhou Institute of Thermal Engineering, na gafere nyochaa nke "T/P 91/92 Localization Appraisal Meeting" na 2015, na-arụkọ ọrụ na isi ụlọ ike nkeji dị ka Shenhua Guohua na General Iron na Steel Research Institute ịzụlite 650 ° C. G115 ígwè na-akwado ịgbado ọkụ ihe na usoro, na ẹkenịmde ọtụtụ ịgbado ọkụ consumables mgbanwe nzukọ.
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Oge nzipu: Dec-27-2022