Ishusho y'icyuma gishyushye cya Q355B H Beam Steel Profaili ku mishinga y'ubwubatsi n'ubwubatsi | Umutanga ibikoresho by'icyuma bikomeye cyane
| Ikintu cyo kugereranya | GB y'Abashinwa (GB/T 1591)Q355B | Iburayi EN (EN 10025-2) S355JR / S355JO | Impamyabumenyi y'icyiciro cya 50 cya ASTM y'Abanyamerika (A572/A572M) [345] |
| Akamaro ko Kwita Izina | Q: Ihagarara ku mbaraga z'umusaruro 355: Agaciro k'umusaruro ≥355 MPa B: Icyiciro cy'ubuziranenge B (20°C ikizamini cy'ingaruka) | S: Icyuma cy'ubwubatsi 355: Agaciro k'umusaruro ≥355 MPa JR: Ikizamini cy'ingaruka kuri 20°C JO: Ikizamini cy'ingaruka kuri 0°C | Icyiciro cya 50: Ingufu z'umusaruro ≥50 ksi (hafi 345 MPa) |
| Imbaraga z'umusaruro | ≥355 MPa (ku bunini ≤16mm) | ≥355 MPa (ku bunini ≤16mm) | ≥50 ksi (≥345 MPa) |
| Imbaraga zo Gufata | 470−630 MPa | 470−630 MPa | ≥65 ksi (≥450 MPa) |
| Kurekura | ≥22% (ku bunini ≤40mm) | ≥22% (ku bunini ≤40mm) | ≥18% (mu burebure bwa 200mm) ≥21% (mu burebure bwa 50mm) |
| Ubukomere bw'Ingaruka | Ingufu z'ingaruka z'igihe kirekire kuri 20°C: ≥34 J | JR: Ingufu z'ingaruka ≥27 J kuri 20°C JO: Ingufu z'ingaruka ≥27 J kuri 0°C | Ntabwo ari itegeko mu buryo busanzwe (keretse niba umuguzi abisabye nk'inyongera, urugero, ikizamini cya CVN) |
| Ibikubiye mu binyabutabire (MAX) | C: ≤0.20% Mn: ≤1.60% Si: ≤0.50% P: ≤0.030% S: ≤0.030% | C: ≤0.24% (ku bunini ≤40mm) Mn: ≤1.60% Si: ≤0.55% P: ≤0.035% S: ≤0.035% | C: ≤0.23% Mn: 0.50−1.35% (bitandukana bitewe n'ubunini) Si: ≤0.40% P: ≤0.040% S: ≤0.050% |
| Ingano ya Karuboni (CEV) | ≤0.45% (Iyo ishyushye cyane) | ≤0.45% (ku bunini ≤30mm) | Ntibigengwa cyane na CEV, ahubwo bigenzura neza ibintu bivangavanze (V, Nb, Ti, nibindi) |
| Igice | Ibikubiye (%) |
| Karuboni (C) | ≤ 0.20–0.24 |
| Silikoni (Si) | ≤ 0.55 |
| Manganese (Mn) | ≤ 1.60 |
| Fosifore (P) | ≤ 0.035 |
| Sulfure (S) | ≤ 0.035 |
| Nb + V + Ti | ≤ 0.12 |
| Chromium (Cr) | ≤ 0.30 |
| Nickel (Ni) | ≤ 0.50 |
Imbaraga z'umusaruro (MPa)
| Ubunini (mm) | Imbaraga z'umusaruro |
| ≤ 16 | ≥ 355 |
| 16 - 40 | ≥ 345 |
| 40 – 63 | ≥ 335 |
| 63 - 80 | ≥ 325 |
| 80 – 100 | ≥ 315 |
| 100 – 150 | ≥ 305 |
| 150 – 200 | ≥ 285 |
Imbaraga zo Gukurura (MPa)
| Ingano y'ubunini | Imbaraga zo Gufata |
| ≤ mm 80 | 470 – 630 |
| mm 80 – 150 | 450 – 600 |
| ≥ mm 150 | 450 – 600 |
Kurekura
| Umutungo | Agaciro |
| Uburebure (%) | ≥ 21–22 |
Ikizamini cy'ingaruka (Icyiciro cya Q355B)
| Ikintu | Ibisabwa |
| Ubushyuhe bw'ikizamini | 20°C |
| Ingufu z'Ingaruka | ≥ 27 J |
Ingano y'icyuma kingana
| Igisanzwe | Ingano ingana |
| EN | S355JR |
| ASTM | A572 Gr.50 |
Umuringa wa H ushyushyeIgice cy’urukuta kigizwe n’urukuta (igice cyo hagati gihagaze) n’udupira (ibice bitambitse ku mpande zombi). Udupira dufite ubuso bw’imbere n’inyuma bungana, kandi inzira ijya kuri uru rukuta ifite ishusho nk’iy’uruziga. Iyi miterere itanga ibyiza bikurikira:
Imbaraga zikomeye zo kwiyongerera imbaraga: Uburyo bwo hejuru bwongera cyane ubushobozi bwo gutwara imizigo ya I-beams n'imiyoboro gakondo ku buremere bumwe.
Ubudahangarwa bwinshi bw'inyubako: Ubugari bw'urukiramende rumwe butanga ubukana bwiza ku ruhande, bigatuma rushobora kwifashishwa mu gutwara imizigo y'icyerekezo cy'abiri.
Ikoreshwa ry'ibikoresho rihambaye: Ikibazo cy’imihangayiko ijyanye n’ibice bisanzwe by’icyuma kiragabanuka, bigatuma icyuma kizigama 10% kugeza kuri 30% by’icyuma.
Ibipimo
| Ikintu cya tekiniki | Ibisobanuro n'ibipimo birambuye |
| Igisanzwe | Ibipimo ngenderwaho by'Igihugu cy'Ubushinwa: GB/T 1591-2018 |
| Ingano y'icyuma | Q355B Icyuma cy'Ubwubatsi cya H gifite imbaraga nyinshi kandi giciriritse |
| Ibipimo Mpuzamahanga | • Ibipimo ngenderwaho by'i Burayi: EN 10025 S355JR • Igipimo ngenderwaho cy'Abanyamerika: ASTM A572 Icyiciro cya 50 • Igipimo cy'Ikiyapani: JIS G3101 SS400 (Ikoreshwa nk'ivugurura/gusimbuza bikomeye mu buryo bwihariye bw'ubwubatsi) |
| Uburebure bwa interineti (H) | 100 mm - 900 mm (Ingano zihariye zirahari) |
| Ubugari bwa Flange (B) | mm 50 - mm 400 |
| Ubunini bw'urubuga (t1) | mm 5 - mm 30 |
| Ubunini bwa Flange (t2) | mm 7 - mm 50 |
| Uburebure | Uburebure bwa metero 6, metero 9, metero 12, cyangwa uburebure bwihariye hakurikijwe igishushanyo mbonera cy'umukiriya |
| Uburyo bwo gukora | Ishyushye cyane cyangwa ivanze / HF (Ingano nyinshi) ivanze |
| Ubuvuzi bw'ubuso | • Icyuma cyambaye ubusa / cy'umukara • Indabyo zo mu bwoko bwa "primed coating" zirwanya ingese • Ifite icyuma gishyushye cyane (gitanga ubushobozi bwo kurwanya ingese mu bikorwa byo hanze) |
| Imiterere ya mekanike | • Ingufu z'umusaruro: ≥355 MPa (ku bunini ≤16mm) • Ingufu zo gukurura: 470−630 MPa • Ikizamini cy'ingaruka: Ingufu z'ingaruka zo mu gihe kirekire ≥34 J kuri 20°C |
| Icyemezo cy'ubuziranenge | • MTC (Impamyabushobozi y'ikizamini cya Mill) ikurikije EN 10204 3.1 yatanzwe • Ishyigikira gupima no gupima abantu ba gatatu aho bakorera na SGS, BV (Bureau Veritas), cyangwa TUV |
| Porogaramu z'ingenzi | • Imiterere y'inyubako z'inganda nini n'inyubako ndende • Ibiraro n'ibikorwa remezo by'ibanze • Inkunga y'ibikoresho, ishingiro, n'inkingi z'amabuye y'agaciro • Sisitemu z'inyubako zakozwe mbere |
- Icyuma cy'umukara cyambaye ubusa: Ni cyiza cyane mu ikoreshwa ry'imbere no mu gutunganya ibikoresho mu mwanya wacyo.
- Irangi ririnda ingese: Ririnda ogisijeni n'ingese mu gihe cyo gutwara ibintu mu nyanja no kubibika mu gihe gito.
- Gushyushya no gutwika: Bikora irangi rikomeye kandi rikomeye rya zinc rituma ridashobora kwangirika igihe kirekire. Ni amahitamo meza ku nkombe, ahantu hakonje, inganda n'ahantu habi ho hanze kugira ngo byongere igihe cyo gukora inyubako.
1. Imikorere myiza mu nyubako no kuzigama amafaranga
Kubera uburyo bworoshye bwo gushyiramo ibice, imirasire yacu ya H ifite igipimo cyiza cyane cy’imbaraga hagati y’uburemere n’uburemere. Mu gihe cy’ibisabwa bimwe byo gutwara, igabanya ikoreshwa ry’ibyuma ku kigero cya 15%–30% ugereranije n’imirasire isanzwe ya I, ikiguzi cyo gukata ibikoresho n’uburemere budakomeye. Urufunguzo rworoshye kandi rutuma imirimo yo gushingiraho yoroshye kandi ihendutse, bigabanura amafaranga yose akoreshwa mu mushinga.
2. Kubahiriza byuzuye amahame mpuzamahanga kugira ngo byoroshye kuyashyira mu bikorwa
Ibicuruzwa byacu byujuje ibisabwa ku isi hose, birimo EN 10025 (S355JR/S355JO) na ASTM A572 Gr 50. Injeniyeri n'abaguzi bashobora kubikoresha mu buryo butaziguye nk'ibisimbura badahinduye ibishushanyo mbonera by'ubwubatsi, ibyo bikaba birinda isuzuma ryinshi rya tekiniki n'ikiguzi cyo kubihindura.
3. Imikorere myiza ya mekanike n'umutekano w'inyubako
Ingufu zo gutanga umusaruro zigera kuri 355 MPa n'imbaraga zo gukurura kuva kuri 470 kugeza kuri 630 MPa, imirasire itanga ubushobozi bukomeye bwo gutwara, gukomera cyane no kudakomera kw'imitingito. Dugenzura cyane ingano ya karuboni n'ibipimo bya karuboni, tugenzura ko bishobora gusudira neza haba mu gutunganya uruganda no mu bwubatsi bw'aho bikorerwa, dukomeza inyubako z'icyuma zihamye kandi ziramba igihe kirekire.
4. Uburyo butandukanye bwo kuvura ingese
Dutanga uburyo butandukanye bwo kurangiza ubuso: icyuma cy'umukara gisanzwe, primer irwanya ingese na galvanizing ishyushye. Uru rukuta rwa galvanizing rutanga uburinzi bukomeye ku ngese, rukaba rwiza cyane ku nkombe z'inyanja, ahantu hakonje kandi hakomereye inganda. Rutuma igihe cyo gukora kirushaho kuba cyiza kandi rugabanya inshuro zisanzwe zo kubungabunga.
5. Kugurisha mu buryo butaziguye mu nganda no kugenzura neza ubuziranenge
Dukomoka mu ruganda, dutanga ibiciro bihanitse nta ngaruka mbi ziciriritse. Buri cyiciro giherekejwe n'ibyemezo by'ibizamini by'inganda bikurikije EN 10204 3.1. Igenzura rya SGS, BV, TUV n'izindi nzego zemewe rirashyigikiwe byuzuye, kandi ireme ry'umusaruro rirakurikiranwa byuzuye.
Iby’ubucuruzi n’ibya leta:Inkingi ndende z'inyubako, ibibuga by'indege, sitade, na sisitemu z'inyubako zabanje.
Inganda n'Ibikoresho:Inzira zo kunyuramo indege zikomeye, imihanda y'inganda, n'ububiko bw'ibikoresho bunini.
Ibikorwaremezo n'Ingufu:Ibiraro byo mu muhanda munini/gari ya moshi, imiyoboro y'amashanyarazi, n'ibikoresho byo gushyiramo imirasire y'izuba/umuyaga.
Imashini zikoreshwa mu mazi n'izikomeye:Ibibuga by'imvaho, hejuru y'inkuta z'inyanja, inkuta z'ibikoresho by'ubucukuzi bw'amabuye y'agaciro, n'inkingi z'ifatizo.
Ibipfunyika bisanzwe:Gupakira mu mahanga ibintu bishobora gupfunyika neza mu mazi. Bifatanye n'imigozi ikomeye y'icyuma kugira ngo bifatwe neza kandi binyure mu buryo butekanye.
Uburinzi bw'ubuso:Irangi ririnda ingese, rikozwe mu buryo bwa primer, cyangwa rikozwe mu buryo bwa galvanize bushyushye hakurikijwe amabwiriza y'umukiriya.
Indangamuntu:Udupapuro tw'ibicuruzwa bidapfa amazi dufatanye kuri buri gapfunyika, twerekana umubare w'ubushyuhe, urwego, ingano, uburebure, n'uburemere.
Uburyo bwo Kohereza:Bitangwa mu bwato bunini (ku bicuruzwa binini) cyangwa bipakiye mu bigega bifite uburebure bwa metero 20/40 (ku burebure buhamye kugeza kuri metero 11.8).
Imiterere y'ibyo umuntu asabwa gutanga:Ifite imashini ishyushye cyangwa ivanze, ishobora gukurikiranwa neza hamwe n'Impamyabumenyi z'Ibizamini bya Mill (MTC ikurikije EN 10204 3.1).
Igihe cyo Kubona Umukozi:Iminsi 7-30, Kohereza ibicuruzwa mu buryo bwihuse mu ruganda, hamwe n'igenzura ry'abandi rikozwe na SGS, BV, cyangwa TUV mbere yo kubipakira.
Q1: Ese imirasire ya GB Q355B H-beams ishobora gusimbura EN S355JR na ASTM A572 Gr.50 mu buryo butaziguye?
A: Yego. Q355B ihuye na S355JR na ASTM A572 Gr.50 mu miterere y'ibanze ya mekanike, ifite imbaraga nkeya za 345–355 MPa. Ikora nk'igisimbura cyiza cyane, idasaba impinduka ku mibare y'inyubako cyangwa ibishushanyo mbonera by'inyubako.
Q2: Ni irihe tandukaniro ry'ubukana bw'ingaruka hagati ya Q355B na S355JO?
A: Q355B ifite ikizamini cy’ingaruka ku bushyuhe bwa 20°C (≥34 J), kingana n’icyiciro cya S355JR cy’i Burayi. Ku mishinga yo mu karere gakonje isaba igipimo cya S355JO (ubudahangarwa ku ngaruka za 0°C), dushobora guhindura ibice bito bivangavanga mu gihe cyo gukora kugira ngo byuzuze ibisabwa ku ngaruka za 0°C, hamwe n’ibyemezo byemewe by’ibizamini by’uruganda kugira ngo byemezwe.
Q3: Ni ubuhe burebure busanzwe butangwa, kandi bugira izihe ngaruka ku kohereza ibicuruzwa?
A: Uburebure bw'ibicuruzwa byacu bisanzwe ni metero 6, metero 9 na metero 12.
- Kohereza amakontena: Kugira ngo amakontena asanzwe ya metero 20/futi 40 ahuzwe (uburebure bw'imbere ntarengwa metero 11.8), turasaba ko uburebure buri munsi ya metero 11.8 kugira ngo hirindwe ibibazo byo gupakira.
- Kohereza ubwato bunini: Uburebure bwa metero 12 zose n'ingano ndende zihariye zirahari ku mabwiriza y'umushinga mugari.
Ikibazo cya 4: Ese uburyo bwo kuvura ubuso burwanya ingese bushobora gukoreshwa hanze?
A: Yego. Dutanga uburyo bworoshye bwo kurangiza ubuso ku mishinga itandukanye:
- Icyuma cy'umukara cyambaye ubusa: Ni cyiza cyane mu ikoreshwa ry'imbere no mu gutunganya ibikoresho mu mwanya wacyo.
- Irangi ririnda ingese: Ririnda ogisijeni n'ingese mu gihe cyo gutwara ibintu mu nyanja no kubibika mu gihe gito.
- Gushyushya no gutwika: Bikora irangi rikomeye kandi rikomeye rya zinc rituma ridashobora kwangirika igihe kirekire. Ni amahitamo meza ku nkombe, ahantu hakonje, inganda n'ahantu habi ho hanze kugira ngo byongere igihe cyo gukora inyubako.
Q5: Ni gute ubuziranenge bw'ibicuruzwa n'uburyo byose bikurikiranwa byemezwa?
A: Ibicuruzwa byose bifasha gukurikirana neza. Buri gice gihabwa icyemezo cyemewe cya EN 10204 3.1 mill, gikubiyemo umubare wuzuye w'ubushyuhe, imiterere y'ibinyabutabire n'amakuru y'imikorere ya mekanike. Dushyigikira kandi byimazeyo isuzuma ry'ibicuruzwa bya gatatu mbere yo gushyira mu bikorwa ibizamini n'igenzura rikorwa n'inzego zemewe zirimo SGS, BV na TUV.
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