Chimiro Chesimbi Chinopfuta Q355B H Beam Steel Profile yekuvaka & mapurojekiti ekuvaka | Mupi weSimbi Yesimbi Yakasimba Yekuvaka
| Chinhu Chekuenzanisa | Chinese GB (GB/T 1591)Q355B | European EN (EN 10025-2)S355JR / S355JO | American ASTM (A572/A572M)Giredhi 50 [345] |
| Kukosha Kwemazita | Mubvunzo: Chinomiririra Simba reKubereka 355: Kukosha kwegoho ≥355 MPa B: Giredhi remhando yepamusoro B (20°C bvunzo yemhedzisiro) | S: Simbi Yekuvaka 355: Kukosha kwegoho ≥355 MPa JR: Kuedzwa kwemhedzisiro pa20°C JO: Kuongororwa kwesimba pa 0°C | Giredhi 50: Simba rekupa ≥50 ksi (inenge 345 MPa) |
| Simba reGoho | ≥355 MPa (yeukobvu ≤16mm) | ≥355 MPa (yeukobvu ≤16mm) | ≥50 ksi(≥345 MPa) |
| Simba reKusimba | 470−630 MPa | 470−630 MPa | ≥65 ksi(≥450 MPa) |
| Kureba | ≥22% (yeukobvu ≤40mm) | ≥22% (yeukobvu ≤40mm) | ≥18% (muhurefu hwegeji ye200mm) ≥21% (muhurefu hwegeji ye50mm) |
| Kusimba Kwemhedzisiro | Simba remhedzisiro yerefu pa20°C: ≥34 J | JR: Simba remagetsi ≥27 J pa20°C JO: Simba remagetsi ≥27 J pa 0°C | Hazvisungirwi mumutemo (kunze kwekunge zvakumbirwa nemutengi sechinodiwa chekuwedzera, semuenzaniso, bvunzo yeCVN) |
| Kuumbwa kweMakemikoro (MAX) | C: ≤0.20% Mn: ≤1.60% Si: ≤0.50% P: ≤0.030% S: ≤0.030% | C: ≤0.24% (yeukobvu ≤40mm) Mn: ≤1.60% Si: ≤0.55% P: ≤0.035% S: ≤0.035% | C: ≤0.23% Mn: 0.50−1.35% (inosiyana nekukora) Si: ≤0.40% P: ≤0.040% S: ≤0.050% |
| Kuenzana neKabhoni (CEV) | ≤0.45% (Kupisa kwakaputirwa) | ≤0.45% (yeukobvu ≤30mm) | Haisi yakaganhurirwa zvakanyanya neCEV, asi inodzora zvakanyanya zvinhu zvinosanganisa alloying (V, Nb, Ti, nezvimwewo) |
| Chinhu | Zviri Mukati (%) |
| Kabhoni (C) | ≤ 0.20–0.24 |
| Silikoni (Si) | ≤ 0.55 |
| Manganese (Mn) | ≤ 1.60 |
| Phosphorus (P) | ≤ 0.035 |
| Sarufa (S) | ≤ 0.035 |
| Nb + V + Ti | ≤ 0.12 |
| Chromium (Cr) | ≤ 0.30 |
| Nickel (Ni) | ≤ 0.50 |
Simba reKubereka (MPa)
| Ukobvu (mm) | Simba reGoho |
| ≤ 16 | ≥ 355 |
| 16 - 40 | ≥ 345 |
| 40 - 63 | ≥ 335 |
| 63 - 80 | ≥ 325 |
| 80 - 100 | ≥ 315 |
| 100 - 150 | ≥ 305 |
| 150 - 200 | ≥ 285 |
Simba reKusimba (MPa)
| Ukobvu Range | Simba reKusimba |
| ≤ 80 mm | 470 - 630 |
| 80 - 150 mm | 450 - 600 |
| ≥ 150 mm | 450 - 600 |
Kureba
| Pfuma | Kukosha |
| Kureba (%) | ≥ 21–22 |
Bvunzo yeKukanganisa (Gwaro reQ355B)
| Chinhu | Chinodiwa |
| Tembiricha Yekuyedza | 20°C |
| Simba reMhedzisiro | ≥ 27 J |
Magiredhi eSimbi Akaenzana
| Zvakajairika | Giredhi rakaenzana |
| EN | S355JR |
| ASTM | A572 Gr.50 |
Beam Rinopisa Rakamoneredzwa Hchikamu chakachinjika chine dandemutande (chikamu chepakati chakamira) uye flanges (zvikamu zvakatwasuka kumativi ese). Flanges dzine nzvimbo dzemukati nedzekunze dzakafanana, uye shanduko kuenda kudandemutande ine chimiro che arc-shaped. Dhizaini iyi inopa mabhenefiti anotevera:
Simba rakasimba rekuchinjika: Modulus yechikamu chepamusoro inowedzera zvakanyanya kugona kwekutakura mutoro kweI-beams dzechinyakare nemachaneli ane huremu hwakaenzana.
Kugadzikana kwakasimba kwechimiro: Upamhi hweflange hwakafanana hunopa kuomarara kwakanaka kwemativi, zvichiita kuti ive yakakodzera kutsigira mitoro yemativi maviri.
Kushanda zvakanaka kwezvinhu: Dambudziko rekumanikidzwa kwakabatana nezvikamu zvesimbi zvechinyakare rakaderera, zvichichengetedza 10% kusvika 30% yesimbi.
Maparamita
| Chinhu chehunyanzvi | Magadzirirwo & Maparamita Akadzama |
| Zvakajairika | Standard yeNyika yeChina: GB/T 1591-2018 |
| Giredhi reSimbi | Q355B Simba Rakasimba Rakaderera-Chiumbwa Chesimbi H Beam |
| Zvakafanana Pasirose | • Muyero weEurope: EN 10025 S355JR • Mutemo wekuAmerica: ASTM A572 Giredhi 50 • Chiyero cheJapan: JIS G3101 SS400 (Chinoshandiswa sechinosimudzira/chinotsiva chakasimba mune mamwe mamiriro ekuvaka) |
| Kureba kweWebhu (H) | 100 mm - 900 mm (Saizi dzakagadzirwa dzinowanikwa) |
| Upamhi hweFlange (B) | 50 mm - 400 mm |
| Ukobvu hwewebhu (t1) | 5 mm - 30 mm |
| Ukobvu hweFlange (t2) | 7 mm - 50 mm |
| Kureba | 6m, 9m, 12m, kana kureba kwakagadzirirwa zvichienderana nepurani yemutengi |
| Maitiro Ekugadzira | Yakaputirwa kana Yakasungirirwa / HF (Yakajairwa Kakawanda) Yakasungirirwa |
| Kurapa Kwepamusoro | • Simbi Isina Chinhu / Nhema • Kuputira nePrimed Coating inodzivirira ngura • Yakanyudzwa neGlavuni inopisa (Inodzivirira ngura zvakanyanya pakushandiswa panze) |
| Zvivakwa zveMichina | • Simba reKuburitsa: ≥355 MPa (yeukobvu ≤16mm) • Simba reKubata: 470−630 MPa • Kuedzwa kweKubata: Simba reKubata reLongitudinal ≥34 J pa20°C |
| Chitupa Chemhando Yepamusoro | • MTC (Mill Test Certificate) inoenderana neEN 10204 3.1 yakapihwa • Inotsigira kutorwa kwemasampuli nekuongororwa kwevamwe vanhu vari panzvimbo iyi neSGS, BV (Bureau Veritas), kana TUV. |
| Zvishandiso Zvikuru | • Mapurani ezvivakwa zvemaindasitiri makuru nezvivakwa zvirefu • Kuvakwa kwemabhiriji nezvivakwa zvehurumende • Zvitsigiro zvemidziyo, nheyo, uye mafuremu emugodhi • Masisitimu ekuvaka akagadziriswa kare |
- Simbi nhema isina chinhu: Yakanakira kushandiswa mukati uye kugadziriswa kwechipiri panzvimbo yacho.
- Kuvhara kweprimer yekudzivirira ngura: Kunodzivirira oxidation nengura panguva yekufambisa mugungwa uye kuchengetwa kwenguva pfupi.
- Kupisa-kunyika: Kunogadzira zinc coating yakakora uye yakasimba yekudzivirira ngura kwenguva refu. Ndiyo sarudzo yakanakisisa yenzvimbo dzekunze dziri pamhenderekedzo yegungwa, dzine hunyoro, dzemaindasitiri uye dzakaoma kuti dziwedzere hupenyu hwebasa rekuvaka.
1. Kushanda Kwakanaka Kwekuvaka Uye Kuchengetedza Mari
Nekuda kwechikamu chakagadziriswa, maH-beam edu ane chiyero chakanaka chekusimba nehuremu. Kana mutoro wakafanana, anoderedza kushandiswa kwesimbi ne15%–30% zvichienzaniswa neI-beams dzemazuva ano, mitengo yezvinhu zvinocheka uye huremu hwakaderera hwechivakwa. Furemu yakareruka inobvumirawo basa renheyo riri nyore uye risingadhuri, zvichideredza mari inoshandiswa pabasa rose.
2. Kutevedzera zvizere mitemo yepasi rose kuti zvive nyore kushandisa
Zvigadzirwa zvedu zvinosangana nezvinodiwa pasi rose, zvinosanganisira EN 10025 (S355JR/S355JO) uye ASTM A572 Gr 50. Mainjiniya nevatengi vanogona kuzvishandisa zvakananga senzvimbo yekutsiva pasina kugadzirisa madhirowa ekuvaka, izvo zvinodzivirira ongororo dzehunyanzvi uye mari yekugadzirisa.
3. Kushanda Kwemakanika Kwakavimbika & Kuchengetedzeka Kwechivako
Simba remugoho rinosvika 355 MPa uye simba rekudhonza rinotangira pa470 kusvika 630 MPa, matanda aya ane mutoro wakasimba, kusimba kwakakombama uye kuramba kwakavimbika kwekudengenyeka kwenyika. Tinodzora zvakanyanya huwandu hwekabhoni uye zvakaenzana nekabhoni, tichiona kuti zvinokwanisika kusveta zvakanaka pakugadzira fekitori nekuvaka panzvimbo, tichichengetedza zvivakwa zvesimbi zvakagadzikana uye zvinogara kwenguva refu.
4. Kurapa Kwepamusoro Kwakasiyana-siyana Kurwisa Kuora
Tinopa zvinhu zvakasiyana-siyana zvinopedzisa pamusoro: simbi nhema isina kugadzirwa, primer inodzivirira ngura uye galvanizing inodziya. Rutivi rwakafanana rwegalvanizing runopa dziviriro yakasimba kubva kungura, rwakanakira nzvimbo dziri kumahombekombe, dzine hunyoro uye dzakaoma dzemaindasitiri. Runorebesa nguva yekushanda uye runoderedza nguva yekugadzirisa nguva dzose.
5. Kutengesa Kwakananga Kwefekitori & Kudzora Hunhu Hwakasimba
Tinobva zvakananga kufekitori, tinopa mitengo yakawanda inokwikwidzana pasina markups ari pakati nepakati. Batch yega yega inoperekedzwa nezvitupa zvekuyedza zvemugayo zvinoenderana neEN 10204 3.1. Kuongororwa kwechitatu neSGS, BV, TUV nedzimwe nzvimbo dzine mvumo kunotsigirwa zvizere, uye mhando yechigadzirwa inoteverwa zvizere.
Zvehurumende & Zvekutengeserana:Makoramu marefu ane zvivako zvirefu, nhandare dzendege, nhandare dzemitambo, uye masisitimu ekuvaka akatogadzirwa kare.
Maindasitiri & Kugadzirwa Kwezvinhu:Nzira dzendege dzinotakura makireni anorema, matrus emufekitori, uye matura ekutakura zvinhu ane nzvimbo yakakura.
Zvivakwa & Simba:Mabhiriji emigwagwa mikuru/njanji, mapombi epetrochemical, uye mapuratifomu ekuisa simba rezuva/mhepo.
Michina yemugungwa nemidziyo inorema:Zviteshi zvechiteshi, mativi epuratifomu ari kure, mafuremu emidziyo yekuchera, uye madziro ekusimbisa nheyo.
Kurongedza Kwakajairwa:Kurongedza zvinhu zvinokwanisa kutengeswa kunze kwenyika. Zvakabatanidzwa nesimbi dzakasimba kuti zvibatisiswe zvakanaka uye zvifambiswe zvakanaka.
Kudzivirirwa Kwepamusoro:Kuputira kwakagadzirwa nemafuta anodzivirira ngura, kuputira kwakaiswa primer, kana kuputira kwakaiswa negalvanized inopisa zvichienderana nezvinodiwa nemutengi.
Kuzivikanwa:Matagi ezvigadzirwa asingapindi mvura akabatanidzwa pabundle rega rega, achiratidza nhamba yekupisa, giredhi, saizi, kureba, uye huremu.
Nzira dzekutumira:Inopihwa mumidziyo mikuru (yekutakura zvinhu zvakakura) kana kurongedzwa mumidziyo ine 20ft/40ft (yehurefu hwakatarwa hunosvika 11.8m).
Mamiriro Ekutumira:Yakaputirwa kana kusungirirwa inopisa, inogona kuteverwa zvizere neMill Test Certificates (MTC inoenderana neEN 10204 3.1).
Nguva Yekutungamira:Mazuva manomwe kusvika makumi matatu, Kutumirwa kwemotokari zvakananga nefekitori nekukurumidza, nekutarisa kwevamwe vanhu neSGS, BV, kana TUV kuchiri kutsigirwa zvizere usati waisa zvinhu.
Mubvunzo 1: Ko mabara eGB Q355B H-beams anogona kutsiva zvakananga EN S355JR neASTM A572 Gr.50 here?
A: Ehe. Q355B inoenderana neS355JR neASTM A572 Gr.50 muhunhu hwayo hwemakanika, ine simba rekukura kwe345–355 MPa. Inoshanda senzvimbo yakakwana yekutsiva zvakananga, isingade kugadziriswa kwekuverenga kwechimiro kana madhirowa ekuvaka.
Mubvunzo wechipiri: Ndeupi musiyano wesimba reQ355B neS355JO?
A: Q355B ine bvunzo ye20°C longitudinal impact test (≥34 J), yakaenzana neEuropean S355JR grade. Kune mapurojekiti enzvimbo inotonhora anoda standard yeS355JO (0°C impact resistance), tinogona kugadzirisa micro-alloying components panguva yekugadzira kuti isvike pazvinodiwa zve 0°C impact, nemagwaro epamutemo ekuyedza mill akagadzirwa kuti asimbiswe.
Mubvunzo wechitatu: Ndedzipi hurefu hwakajairika hunopiwa, uye hunokanganisa sei kutumira?
A: Hurefu hwedu hwenguva dzose hunosvika 6m, 9m uye 12m.
- Kutumirwa kwemidziyo: Kuti ikwane midziyo ye20ft/40ft yakajairwa (kureba kwemukati kwakanyanya 11.8m), tinokurudzira kureba kuri pasi pe11.8m kudzivirira matambudziko ekutakura zvinhu.
- Kutumirwa kwengarava huru: Hurefu hwakazara hwemamita gumi nemaviri uye saizi dzakareba dzakagadzirwa zviripo kune maodha makuru epurojekiti.
Mubvunzo wechina: Mishonga yekudzivirira ngura inowanikwa here pakushandisa panze?
A: Ehe. Tinopa sarudzo dzinochinjika dzekupedzisa pamusoro pechiso kune akasiyana mapurojekiti:
- Simbi nhema isina chinhu: Yakanakira kushandiswa mukati uye kugadziriswa kwechipiri panzvimbo yacho.
- Kuvhara kweprimer yekudzivirira ngura: Kunodzivirira oxidation nengura panguva yekufambisa mugungwa uye kuchengetwa kwenguva pfupi.
- Kupisa-kunyika: Kunogadzira zinc coating yakakora uye yakasimba yekudzivirira ngura kwenguva refu. Ndiyo sarudzo yakanakisisa yenzvimbo dzekunze dziri pamhenderekedzo yegungwa, dzine hunyoro, dzemaindasitiri uye dzakaoma kuti dziwedzere hupenyu hwebasa rekuvaka.
Mubvunzo 5: Hunhu hwechigadzirwa uye kutevedza kwakazara kunovimbiswa sei?
A: Zvese zvinotumirwa zvinotsigira kuteverwa kwakazara. Batch yega yega inopihwa chitupa chebvunzo cheEN 10204 3.1 mill, chinosanganisira nhamba yakazara yekupisa, kuumbwa kwemakemikari uye data rekushanda kwemuchina. Tinotsigirawo zvizere kutorwa kwemasampuli echitatu uye kuongororwa nemasangano ane mvumo anosanganisira SGS, BV neTUV.
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