JIS G 3444: Imiyoboro y'icyuma cya karuboni ku miterere rusange.
Igaragaza ibisabwa ku miyoboro y'icyuma cya karuboni ikoreshwa mu bwubatsi bw'ubwubatsi, nk'iminara y'icyuma, ikigo, imigozi y'ifatizo, imigozi y'ifatizo, n'imigozi idaserera.
STK 400umuyoboro w'icyuma ni umwe mu miterere isanzwe, ufite imiterere ya mekanikeimbaraga nkeya zo gukurura za 400 MPanaimbaraga nkeya z'umusaruro wa 235 MPa. Ikomeye kandi iramba mu nyubako zayobigira akamaro ku bikorwa byinshi bitandukanye.
Dukurikije imbaraga nke zo gukurura umuyoboro w'icyuma ugabanyijemo ibyiciro 5, aribyo:
STK 290, STK 400, STK 490, STK 500, STK 540.
Intego rusange Umurambararo wo hanze: 21.7-1016.0mm;
Ibirundo by'ibanze n'ibirundo byo gukumira isuri OD: munsi ya mm 318.5.
| Ikimenyetso cy'icyiciro | Ikimenyetso cy'inzira yo gukora | |
| Uburyo bwo gukora imiyoboro | Uburyo bwo kurangiza | |
| STK 290 | Idafite umushono: S Ubudahangarwa bw'amashanyarazi busudishwa: E Ipfundikirwa ku matako: B Imashini ikoresha arc irasukwa: A | Byarangiye neza: H Irangijwe mu buryo bukonje: C Nkuko amashanyarazi asukwa: G |
| STK 400 | ||
| STK 490 | ||
| STK 500 | ||
| STK 540 | ||
Imiyoboro igomba gukorwa hakoreshejwe uburyo bwo gukora imiyoboro n'uburyo bwo kurangiza bwagaragajwe.
By’umwihariko, zishobora gushyirwa mu byiciro birindwi bikurikira, bityo hitamo ubwoko bukwiye ukurikije ibyo ukeneye bitandukanye:
1) Umuyoboro w'icyuma ushyushye kandi udafite umugozi: -SH
2) Umuyoboro w'icyuma ukozwe mu buryo bukonje kandi butarimo umugozi: -SC
3) Nk'icyuma gishongeshejwe n'amashanyarazi: -EG
4) Umuyoboro w'icyuma ushyushye kandi udashobora gushyuha ukoresheje amashanyarazi: -EH
5) Umuyoboro w'icyuma ukozwe mu buryo bukonje kandi udashobora gukonja: -EC
6) Imiyoboro y'icyuma ishongeshejwe ku matako: -B
7) Imiyoboro y'icyuma ikoze mu buryo bwikora: -A
| Ibikoresho bya shimia% | |||||
| Ikimenyetso cy'icyiciro | C (Karuboni) | Si (Silicone) | Mn (Manganese) | P (Fosforu) | S (Sulfure) |
| umubare ntarengwa | umubare ntarengwa | umubare ntarengwa | umubare ntarengwa | ||
| STK 400 | 0.25 | — | — | 0.040 | 0.040 |
| aIbintu bya aluminiyumu bitari muri iyi mbonerahamwe n'ibintu byagaragajwe na "—" bishobora kongerwamo uko bikenewe. | |||||
STK 400ni icyuma gikoresha karuboni nkeya gifite ubushobozi bwo gusudira neza kandi gishobora gukoreshwa mu nyubako zisaba gusudira. Fosforu na sulfure bigenzurwa ku rugero rwo hasi kugira ngo bifashe mu kugumana ubukomere rusange no gukora neza kw'ibikoresho. Nubwo agaciro ka silikoni na manganese katatanzwe, bishobora guhindurwa mu buryo bwemewe kugira ngo imiterere y'icyuma irusheho kuba myiza.
Imbaraga zo Gukomera no Gutsinda cyangwa Gutanga Impagarara
Ingufu zo gukurura za weld zikoreshwa ku miyoboro ikoresha arc weld. Ni uburyo bwo gusudira bwa SAW.
| Ikimenyetso cy'icyiciro | Imbaraga zo gukurura | Ingufu cyangwa igipimo cy'umusaruro | Ingufu zo gukurura mu gusudira |
| N/mm² (MPA) | N/mm² (MPA) | N/mm² (MPA) | |
| umunota | umunota | umunota | |
| STK 400 | 400 | 235 | 400 |
Uburebure bwa JIS G 3444
Uburebure bujyanye n'uburyo bwo gukora imiyoboro bugaragara mu mbonerahamwe ya 4.
Ariko, iyo ikizamini cyo gukurura gikozwe ku gice cy’ikizamini No. 12 cyangwa Igice cy’ikizamini No. 5 cyakuwe mu muyoboro uri munsi ya mm 8 z’ubugari bw’urukuta, uburebure bugomba kuba bukurikije Imbonerahamwe ya 5.
Ku bushyuhe bw'icyumba (5 °C kugeza 35 °C), shyira icyitegererezo hagati y'ibipande bibiri birambuye hanyuma ukande cyane kugira ngo ubigorore kugeza intera iri hagati y'ibipande H ≤ 2/3D, hanyuma urebe niba hari imitumba iri muri icyo gipimo.
Ku bushyuhe bw'icyumba (5 °C kugeza 35 °C), zungurutsa icyitegererezo ugikikije silinda ku nguni ya 90 ° n'umurambararo ntarengwa w'imbere utarenze 6D hanyuma urebe niba icyitegererezo cyacitse.
Ibizamini bya hydrostatic, ibizamini bidasenya by’imashini zisudira, cyangwa ibindi bizamini byemezwa mbere y’igihe ku bisabwa bireba.
Kwihanganira diameter yo hanze
Kwihanganira ubunini bw'urukuta
Kwihanganira uburebure
Uburebure ≥ uburebure bwagenwe
Ubuso bw'imbere n'inyuma bw'umuyoboro w'icyuma bugomba kuba bworoshye kandi budafite inenge zibangamira imiyoboro.
Buri muyoboro w'icyuma ugomba kuba wanditseho amakuru akurikira.
a)Ikimenyetso cy'icyiciro.
b)Ikimenyetso cy'uburyo bwo gukora.
c)Ingano.Ingano y'umurambararo w'inyuma n'ubugari bw'urukuta bigomba gushyirwaho ikimenyetso.
d)Izina cyangwa incamake y'uwakoze.
Iyo ikimenyetso ku muyoboro kigoye kubera ko umurambararo wawo wo hanze ari muto cyangwa iyo umuguzi abisabye, ikimenyetso gishobora gutangwa kuri buri muyoboro hakoreshejwe uburyo bukwiye.
Ibyuma birwanya ingese nk'ibisigazwa birimo zinc nyinshi, epoxy, irangi, nibindi bishobora gushyirwa ku buso bwo hanze cyangwa imbere.
STK 400 itanga uburinganire bwiza mu mbaraga no mu buryo buhendutse, bigatuma iba nziza cyane mu mishinga myinshi y’ubwubatsi n’ubwubatsi.
Imiyoboro y'icyuma ya STK 400 ikunze gukoreshwa mu nganda z'ubwubatsi kandi ikwiriye cyane gukoreshwa nk'ibintu by'ubwubatsi nk'inkingi, imigozi, cyangwa amafuremu mu nyubako z'ubucuruzi n'iz'amazu.
Irakwiriye kandi ku biraro, inyubako zishyigikira, n'indi mishinga isaba imbaraga ziciriritse no kuramba.
Ishobora kandi gukoreshwa mu kubaka inzira zo kurinda imihanda, inkingi z'ibyapa by'umuhanda, n'ibindi bikorwa rusange.
Mu nganda, STK 400 ishobora gukoreshwa mu gukora inkingi n'inyubako zishyigikira imashini n'ibikoresho bitewe n'ubushobozi bwayo bwo gutwara imizigo no gukora neza.
GB/T 3091: Q235B;
ASTM A500: Icyiciro cya A,Icyiciro cya B, naIcyiciro cya C;
EN 10219: S235;
BS 4360: Icyiciro cya 43A;
Menya ko nubwo aya mahame asa mu ikoreshwa n'imikorere, hashobora kubaho itandukaniro rito mu miterere yihariye y'ibinyabutabire n'ibipimo bimwe na bimwe by'imiterere y'imashini.
Mu gihe cyo gusimbuza ibikoresho, ibisabwa byihariye by’amabwiriza bigomba kugereranywa mu buryo burambuye kugira ngo harebwe ko ibikoresho byatoranijwe byujuje ibisabwa mu rwego rwa tekiniki n’umutekano by’umushinga.
Kuva yashingwa mu 2014, Botop Steel yabaye ikigo gikomeye mu kugurisha imiyoboro y'icyuma cya karuboni mu majyaruguru y'Ubushinwa, kizwiho gutanga serivisi nziza, ibicuruzwa byiza, n'ibisubizo byuzuye.
Iyi kompanyi itanga imiyoboro itandukanye y’icyuma cya karuboni n’ibindi bifitanye isano, harimo imiyoboro y’icyuma idakora neza, 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.
