ASTM A519imiyoboro igomba gukorwa hakoreshejwe uburyo budafite umugozi kandi igomba kurangizwa ishyushye cyangwa ikonje nkuko byavuzwe.
Ku miyoboro izengurutse ifite umurambararo wo hanze utarenze mm 325.
Imiyoboro y'icyuma ishobora kandi gukorwa mu buryo bwa kare, uruziga, cyangwa ubundi buryo uko bikenewe.
ASTM A519 ishobora gushyirwa mu byiciro hakurikijwe ibikoresho by'icyuma:Icyuma cya karubonin'icyuma gikozwe mu byuma.
Icyuma cya karuboniigabanyijemo ibice bibiriMT ifite karuboni nkeya(Ubushyuhe bw'imashini),Icyuma cya karuboni nyinshinaYakuweho isukari cyangwa yasubiwemo phosphore, cyangwa byombiIcyuma cya karuboni, kugira ngo ihuze n'ibikenewe mu nganda zitandukanye ndetse n'uburyo bwo kuyikoresha.
Iyo nta rwego rwagenwe, abakora ibicuruzwa bafite amahitamo yo gutangaMT1015 cyangwa MTX1020amanota.
Umurambararo wo hanze: 13.7 - 325 mm;
Ubunini bw'urukuta: 2-100mm.
Icyuma gishobora gukorwa hakoreshejwe uburyo ubwo aribwo bwose.
Icyuma gishobora gucurwa mu byuma bito cyangwa gishobora kuba icyuma gikozwe mu migozi.
imiyoboro igomba gukorwa nainzira idahindagurikakandi igomba kuba irangijwe mu buryo bushyushye cyangwa ikonje, nk'uko byavuzwe.
Imiyoboro y'icyuma kidapfundikiye ni imiyoboro idafite imigozi ipfundikiye.
Imiyoboro ikonje irangizwabirasabwa cyane kubera ko hakenewe cyane imiterere myiza n'ubwiza bw'ubuso.
Impungenge nyamukuru ni ukudahenda no gukomera kw'ibikoresho,umuyoboro w'icyuma ushyushyeishobora kuba amahitamo akwiriye kurushaho.
Hakurikiraho igikorwa cyo gukora umuyoboro w'icyuma ushyushye kandi udafite umugozi.
Uruganda rukora ibyuma rugomba gusesengura ubushyuhe bwa buri cyuma kugira ngo rumenye ijanisha ry'ibintu byagenwe.
Imbonerahamwe ya 1 Ibisabwa mu byuma bifite karubone nke
Icyuma cyoroshye ni icyuma gifite ubunini bwa karuboni busanzwe butarenga 0.25%. Bitewe n'uko ubunini bwa karuboni ari buke, iki cyuma gifite ubushobozi bwo kugenda neza no kwangirika neza kandi ntigikomeye cyane ugereranije n'icyuma gifite karuboni nyinshi.
Imbonerahamwe ya 2 Ibisabwa mu byuma bya shimi ku bindi byuma bya karuboni
Ibyuma bya karuboni biringaniye: Birimo hagati ya 0.25% na 0.60% bya karuboni, bitanga ubukana n'imbaraga byinshi kandi bisaba ubushyuhe kugira ngo binoze imiterere yabyo.
Icyuma gifite karubone nyinshi: Irimo hagati ya 0.60% na 1.0% cyangwa irenga karuboni, kandi itanga ubukana n'imbaraga byinshi cyane, ariko ubukana buke.
Imbonerahamwe ya 3 Ibisabwa mu byuma bya Alloy
Imbonerahamwe ya 4 Ibisabwa mu byuma bya carbon byuzuye cyangwa byasubiwemo, cyangwa byombi
IMBONERAHAMWE YA 5 Isesengura ry'ibicuruzwa Ubushobozi bwo kwihanganira ibirenze cyangwa munsi y'ingano cyangwa umupaka byagenwe
Uruganda rugomba gusabwa gusesengura ibicuruzwa iyo bibaye ngombwa nk'uko byategetswe.
ASTM A519 ikubiyemo ibintu bikurikira by'igerageza:
Ikizamini cy'ubukomere; Ikizamini cy'umuvuduko; Ikizamini kidasenya; Ikizamini cyo gutwika; Isuku y'icyuma no gukomera.
| Ishyirwa mu byiciro | Ubwoko bw'umuyoboro | Imiterere | Imbaraga zisanzwe | Imbaraga z'umusaruro | Uburebure muri santimetero 2. [50mm],% | Rockwell, Igipimo cy'ubukomere bwa B | ||
| ksi | Mpa | ksi | Mpa | |||||
| 1020 | Icyuma cya karuboni | HR | 50 | 345 | 32 | 220 | 25 | 55 |
| CW | 70 | 485 | 60 | 415 | 5 | 75 | ||
| SR | 65 | 450 | 50 | 345 | 10 | 72 | ||
| A | 48 | 330 | 28 | 195 | 30 | 50 | ||
| N | 55 | 380 | 34 | 235 | 22 | 60 | ||
| 1025 | Icyuma cya karuboni | HR | 55 | 380 | 35 | 240 | 25 | 60 |
| CW | 75 | 515 | 65 | 450 | 5 | 80 | ||
| SR | 70 | 485 | 55 | 380 | 8 | 75 | ||
| A | 53 | 365 | 30 | 205 | 25 | 57 | ||
| N | 55 | 380 | 35 | 250 | 22 | 60 | ||
| 1035 | Icyuma cya karuboni | HR | 65 | 450 | 40 | 275 | 20 | 72 |
| CW | 85 | 585 | 75 | 515 | 5 | 88 | ||
| SR | 75 | 515 | 65 | 450 | 8 | 80 | ||
| A | 60 | 415 | 33 | 230 | 25 | 67 | ||
| N | 65 | 450 | 40 | 275 | 20 | 72 | ||
| 1045 | Icyuma cya karuboni | HR | 75 | 515 | 45 | 310 | 15 | 80 |
| CW | 90 | 620 | 80 | 550 | 5 | 90 | ||
| SR | 80 | 550 | 70 | 485 | 8 | 85 | ||
| A | 65 | 450 | 35 | 240 | 20 | 72 | ||
| N | 75 | 515 | 48 | 330 | 15 | 80 | ||
| 1050 | Icyuma cya karuboni | HR | 80 | 550 | 50 | 345 | 10 | 85 |
| SR | 82 | 565 | 70 | 485 | 6 | 86 | ||
| A | 68 | 470 | 38 | 260 | 18 | 74 | ||
| N | 75 | 540 | 50 | 345 | 12 | 82 | ||
| 1118 | Yongeye gushya cyangwa byasubiwemo phosphore, cyangwa byombi, Ibyuma bya karuboni | HR | 50 | 345 | 35 | 240 | 25 | 55 |
| CW | 75 | 515 | 60 | 415 | 5 | 80 | ||
| SR | 70 | 485 | 55 | 380 | 8 | 75 | ||
| A | 80 | 345 | 30 | 205 | 25 | 55 | ||
| N | 55 | 380 | 35 | 240 | 20 | 60 | ||
| 1137 | Yongeye gushya cyangwa byasubiwemo phosphore, cyangwa byombi, Ibyuma bya karuboni | HR | 70 | 485 | 40 | 275 | 20 | 75 |
| CW | 80 | 550 | 65 | 450 | 5 | 85 | ||
| SR | 75 | 515 | 60 | 415 | 8 | 80 | ||
| A | 65 | 450 | 35 | 240 | 22 | 72 | ||
| N | 70 | 485 | 43 | 295 | 15 | 75 | ||
| 4130 | Ibyuma by'Alloy | HR | 90 | 620 | 70 | 485 | 20 | 89 |
| SR | 105 | 725 | 85 | 585 | 10 | 95 | ||
| A | 75 | 515 | 55 | 380 | 30 | 81 | ||
| N | 90 | 620 | 60 | 415 | 20 | 89 | ||
| 4140 | Ibyuma by'Alloy | HR | 120 | 825 | 90 | 620 | 15 | 100 |
| SR | 120 | 825 | 100 | 690 | 10 | 100 | ||
| A | 80 | 550 | 60 | 415 | 25 | 85 | ||
| N | 120 | 825 | 90 | 620 | 20 | 100 | ||
HR-Ishyushye cyane, CW-Ikora neza, SR-Igabanya stress, A-Irasubitswe kandi N-Isanzwe.
Kwihanganira diameter yo hanze
Imbonerahamwe ya 6 Impungenge z'umurambararo wo hanzeku miyoboro ishyushye izunguruka
Imbonerahamwe ya 12 Impungenge z'umurambararo wo hanze kuriUmuyoboro w'amazi udafite umushongi urimo imiyoboro
| Ingano y'umurambararo wo hanze, muri.[mm] | Ubwihangane bw'umurambararo wo hanze ku bunini n'uburebure byatanzwe, muri. [mm] | |||
| Birarangiye | Munsi | Birarangiye | Munsi | |
| OD≤1 1/4 [31.8] | 0.003 [0.08] igihe L≤16ft[4.9m] | 0.000 | 0.004 [0.10] igihe L ＞ 16ft [4.9m] | 0.000 |
| 1 1/4 [31.8] ＜ OD ≤2 [50.8] | 0.005 [0.13] igihe L≤16ft[4.9m] | 0.000 | 0.006 [0.15] igihe L ＞ 16ft [4.9m] | 0.000 |
| 2 [50.8] ＜ OD ≤3 [76.2] | 0.005 [0.13] igihe L≤12ft[3.7m] | 0.000 | 0.006 [0.15] igihe L≤16ft[4.9m] | 0.000 |
| 3 [76.2] ＜ OD ≤4 [101.6] | 0.006 [0.15] igihe L≤12ft[3.7m] | 0.000 | 0.006 [0.15] igihe L≤16ft[4.9m] | 0.000 |
Kwihanganira ubunini bw'urukuta
Imbonerahamwe ya 7 Ubwinshi bw'urukuta bwo kwihanganiraku miyoboro ishyushye izunguruka
Imbonerahamwe ya 10 Ubwinshi bw'urukuta bushobora kwihanganiraku miyoboro ikoze mu gihe cy'ubukonje
| Ingano y'ubunini bw'urukuta nk'uko Ijanisha ry'umurambararo wo hanze | Ubunini bw'urukuta Kwihanganira hejuru no munsi y'urukuta, % | |
| OD≤1.499in[38.07mm] | OD≥1.500 muri [38.10mm] | |
| OD/WT≤25 | 10.0 | 7.5 |
| OD/WT＞25 | 12.5 | 10.0 |
Ubwihangane bw'umurambararo w'inyuma n'imbere
Imbonerahamwe ya 8 Impushya zo kwihanganira umurambararo w'inyuma n'uw'imbere kuriUmuyoboro w'amazi ukoze mu gihe cy'ubukonje (Inch Units)
Imbonerahamwe ya 9 Ubwihangane bw'umurambararo wo hanze n'uw'imbereku miyoboro ikora mu gihe cy'ubukonje (SI Units)
Ubwihangane bwo Kwihanganira Ubunini bw'Inyuma n'Ubunini bw'Inkuta
Imbonerahamwe ya 11: Ingano y'umurambararo wo hanze n'uburyo inkuta zihanganiraku byuma bifunga imiyoboro y'icyuma kidahinduka neza
| Ingano yagenwe y'umurambararo wo hanze, muri. [mm] | Ingano yo hanze, muri. [mm] | Ubunini bw'urukuta, % |
| <6 3/4 [171.4] | ± 0.005 [0.13] | ± 12.5 |
| 6 3/4 - 8 [171.4 - 203.2] | ± 0.010 [0.25] | ± 12.5 |
Kwihanganira uburebure
Imbonerahamwe ya 13 Ihangana ry'uburebureku imashini zishyushye cyangwa zikonje zikoze mu buryo bwa "Cycle-Finished"
Kwihanganira kugororoka
Imbonerahamwe ya 14 Ubushobozi bwo kwihanganira ibintu mu buryo bugororotseku miyoboro y'amashanyarazi idafite umugozi
Umuyoboro ugomba gusigwa amavuta mbere yo gucura kugira ngo wirinde ingese.
Amavuta yo gukumira ingese ashobora kandi gushyirwa ku buso bw'imbere n'inyuma bw'umuyoboro.
Ingendo n'indege: gukora ibintu by'ingenzi nka moteri z'indege na sisitemu zo gushyigikira ibyogajuru.
Inganda z'ingufu: ibikoresho byo gucukura no gukora imiyoboro ya boiler ifite umuvuduko mwinshi.
Gukora imashini n'ibikoresho: Ibice by'ingenzi bigize ubwoko bwinshi bw'imashini n'ibikoresho by'inganda.
Ibikoresho bya siporo: Gukora inkingi z'amagare zikora neza cyane n'ibindi bikoresho by'imikino.
Inyubako n'ubwubatsi: ibintu bishyigikira inyubako n'ibikorwa biri ahantu hashyushye cyane.
1. EN 10297-1: E355, 25CrMo4, 42CrMo4, nibindi. Ibi bikoresho bishobora gufatwa nk'ibihwanye na bimwe mu byuma bya karuboni na alloy muri ASTM A519.
2. DIN 1629: St52, St37.4, nibindi. Ubusanzwe bikoreshwa mu bikorwa bya mekanike n'iby'ubwubatsi, ibi bisa n'ibipimo by'icyuma cyoroshye muri ASTM A519.
3. JIS G3445: STKM13A, STKM13B, n'ibindi. Iyi ni imiyoboro y'icyuma cya karuboni ikoreshwa mu bikorwa bya mekanike n'iby'ubwubatsi.
4. BS 6323: CFS 3, CFS 4, CFS 8, n'ibindi. Ibi ni imiyoboro y'icyuma idakora kandi ivanze neza ikoreshwa mu bijyanye n'imodoka, imashini, n'ubuhanga rusange.
5. GB/T 8162:20#, 45#, 40Cr, 20CrMo, nibindi. Imiyoboro n'imiyoboro by'icyuma bidafite umushongi ku miterere rusange n'imiterere ya mekanike.
6. ISO 683-17:100Cr6, n'ibindi, bikunze gukoreshwa mu gukora ibyuma biremereye, bishobora no gukoreshwa mu buhanga bwa mekanike kandi bifite akamaro nk'ak'ibyuma bimwe na bimwe bya ASTM A519.
Mu guhitamo ibikoresho bingana, ni ngombwa kureba imiterere irambuye y’ibinyabutabire n’imiterere y’imashini kugira ngo umenye neza ko ibikoresho byatoranijwe byujuje ibisabwa mu mikorere y’ikoreshwa ry’ikintu runaka.
Kuva yashingwa mu 2014, Botop Steel yabaye ikigo gikomeye mu kugurisha imiyoboro y'icyuma cya karuboni mu majyaruguru y'Ubushinwa, izwiho gutanga serivisi nziza, ibicuruzwa byiza, n'ibisubizo birambuye. Iyi sosiyete itanga imiyoboro itandukanye y'icyuma cya karuboni n'ibindi bifitanye isano, harimo imiyoboro y'icyuma ya ERW, LSAW, na SSAW, ndetse n'urutonde rwuzuye rw'imiyoboro n'ibice by'imiyoboro.
Ibikoresho byayo byihariye birimo kandi aloi nziza n'ibyuma bitagira umugese bya austenitic, byakozwe kugira ngo bihuze n'ibyo imishinga itandukanye y'imiyoboro isaba.
