Tlhahiso e Ncha bakeng sa China ASTM A335 P91 Alloy Pipe ea tšepe e se nang seam bakeng sa Boiler
Kakaretso
Re tšehetsa bareki ba rona ka lihlahisoa tsa boleng bo holimo le litšebeletso tsa boemo bo holimo. Ho ba moetsi ea hloahloa lefapheng lena, joale re se re fumane boiphihlelo bo atlehileng ba ho sebetsa ho hlahiseng le ho tsamaisa peipi ea tšepe ea alloy bakeng sa ts'ebeletso e phahameng ea mocheso le ts'ebeletso e phahameng ea khatello, re ka etsa lihlahisoa ho latela litlhoko tsa hau mme re ka u pakela eona ha o laela. "Etsa hore basali ba khahle haholoanyane" ke filosofi ea rona ea thekiso. "Ho ba morekisi ea tšepahalang le ea ratoang oa bareki" ke sepheo sa k'hamphani ea rona. Re bile thata ka karolo e 'ngoe le e 'ngoe ea mosebetsi oa rona. Re amohela ka tieo metsoalle ho buisana ka khoebo le ho qala tšebelisano. Re tšepa ho kopanya matsoho le metsoalle liindastering tse fapaneng ho theha bokamoso bo botle.
Kopo
E sebelisoa haholo ho etsa phala ea boleng bo holimo ea tšepe ea alloy, phala e fapanyetsanoang mocheso, phala e matla ea mouoane bakeng sa indasteri ea peterole le ea lik'hemik'hale.
Kereiti e ka Sehloohong
Mophato oa phala ea boleng bo holimo ea alloy: P1, P2, P5, P9, P11, P22, P91, P92 joalo-joalo.
Karolo ea Lik'hemik'hale
Kereiti | UN | C≤ | Mn | P≤ | S≤ | Si≤ | Cr | Mo |
Sequiv. | ||||||||
P1 | K11522 | 0.10~0.20 | 0.30~0,80 | 0.025 | 0.025 | 0.10~0,50 | - | 0.44 ~ 0,65 |
P2 | K11547 | 0.10~0.20 | 0.30~0,61 | 0.025 | 0.025 | 0.10~0.30 | 0.50~0,81 | 0.44 ~ 0,65 |
P5 | K41545 | 0.15 | 0.30~0,60 | 0.025 | 0.025 | 0.5 | 4.00~6.00 | 0.44 ~ 0,65 |
P5b | K51545 | 0.15 | 0.30~0,60 | 0.025 | 0.025 | 1.00~2.00 | 4.00~6.00 | 0.44 ~ 0,65 |
P5c | K41245 | 0.12 | 0.30~0,60 | 0.025 | 0.025 | 0.5 | 4.00~6.00 | 0.44 ~ 0,65 |
P9 | S50400 | 0.15 | 0.30~0,60 | 0.025 | 0.025 | 0.50 ~ 1.00 | 8.00~10.00 | 0.44 ~ 0,65 |
P11 | K11597 | 0.05~0.15 | 0.30~0,61 | 0.025 | 0.025 | 0.50 ~ 1.00 | 1.00 ~ 1.50 | 0.44 ~ 0,65 |
P12 | K11562 | 0.05~0.15 | 0.30~0,60 | 0.025 | 0.025 | 0.5 | 0.80~1.25 | 0.44 ~ 0,65 |
P15 | K11578 | 0.05~0.15 | 0.30~0,60 | 0.025 | 0.025 | 1.15 ~ 1.65 | - | 0.44 ~ 0,65 |
P21 | K31545 | 0.05~0.15 | 0.30~0,60 | 0.025 | 0.025 | 0.5 | 2.65~3.35 | 0.80~1,60 |
P22 | K21590 | 0.05~0.15 | 0.30~0,60 | 0.025 | 0.025 | 0.5 | 1.90~2,60 | 0.87~1.13 |
P91 | K91560 | 0.08~0.12 | 0.30~0,60 | 0.02 | 0.01 | 0.20~0,50 | 8.00~9.50 | 0.85~1.05 |
P92 | K92460 | 0.07~0.13 | 0.30~0,60 | 0.02 | 0.01 | 0.5 | 8.50~9.50 | 0.30~0,60 |
Lebitso le lecha le thehiloeng ho latela Practice E 527 le SAE J1086, Practice for Numbering Metals and Alloys (UNS). B Grade P 5c e tla ba le titanium content e seng ka tlase ho makhetlo a 4 ho feta khabone le ho feta 0.70%; kapa dikahare tsa columbium tsa 8 ho isa ho 10 makhetlo a khabone.
Thepa ea Mechini
Thepa ea mechine | P1,P2 | P12 | P23 | P91 | P92,P11 | P122 |
Matla a tšepe | 380 | 415 | 510 | 585 | 620 | 620 |
Ho hlahisa matla | 205 | 220 | 400 | 415 | 440 | 400 |
Kalafo ea Mocheso
Kereiti | Mofuta oa Phekolo ea Mocheso | Boemo bo Tloaelehileng ba Thempereichara F [C] | Subcritical Annealing kapa Tempering |
P5, P9, P11, le P22 | Boemo ba Mocheso F [C] | ||
A335 P5 (b,c) | Aneal e felletseng kapa e Isothermal | ||
Tloaeleha le ho halefa | ***** | 1250 [675] | |
Subcritical Anneal (P5c feela) | ***** | 1325 - 1375 [715 - 745] | |
A335 P9 | Aneal e felletseng kapa e Isothermal | ||
Tloaeleha le ho halefa | ***** | 1250 [675] | |
A335 P11 | Aneal e felletseng kapa e Isothermal | ||
Tloaeleha le ho halefa | ***** | 1200 [650] | |
A335 P22 | Aneal e felletseng kapa e Isothermal | ||
Tloaeleha le ho halefa | ***** | 1250 [675] | |
A335 P91 | Tloaeleha le ho halefa | 1900-1975 [1040 - 1080] | 1350-1470 [730 - 800] |
Tlosa le ho halefa | 1900-1975 [1040 - 1080] | 1350-1470 [730 - 800] |
Tlhokahalo ea Teko
Ntle le ho netefatsa sebopeho sa lik'hemik'hale le thepa ea mochini, liteko tsa hydrostatic li etsoa ka bonngoe, Tlhahlobo e sa Senyeheng, Tlhahlobo ea Sehlahisoa, Sebopeho sa Metal le Liteko tsa Etching, Teko ea ho batalla joalo-joalo.
Matla a Phepelo
Matla a Phepelo: Lithane tse 2000 ka Khoeli Ka Kreiti ka 'ngoe ea ASTM A335 Alloy Steel Pipe
Sephutheloana
Ka Mengata Le ka Lebokoseng le Matla la Lehong
Phano
Matsatsi a 7-14 haeba a le setokong, matsatsi a 30-45 ho hlahisa
Tefo
30% depsoit, 70% L/C kapa B/L kopi kapa 100% L/C ha u bona