700 × 300 H danda Q235B uye Q345B danda, ini ndinorovera Simbi chimiro Universal Column
1. Murayiridzo uri nyore:
H-beam imhando yechikamu chehupfumi uye yakakwirira-inoshanda chikamu ine yakakwenenzverwa muchinjika-chikamu nharaunda kugovera uye.
zvimwe zvinonzwisisika simba-kusvika-uremu reshiyo. Inotumidzwa zita rechikamu chayo chakafanana nerechirungu vara "H". Sezvo zvikamu zvese zve
iyo H-beam yakarongwa pamakona ekurudyi, iyo H-beam ine zvakanakira kukotama kwakasimba kuramba, kuvaka kuri nyore,
kuchengetedza mutengo uye kureruka kurema munzira dzese, uye yakashandiswa zvakanyanya.
2. Kuumbwa Kwemakemikari
| Giredhi | Muumbi weKemikari (%) | ||||
| C | Si | Mn | P | S | |
| Q235B | ≤0.20 | ≤0.35 | ≤1.40 | ≤0.045 | ≤0.045 |
| Q345B | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 |
| Q345C | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.030 |
| Q345D | ≤0.18 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.025 |
3. Mechanical Properties
| Giredhi | Mechanical Property | ||
| Kusimba Kwegoho (N/mm2)/(Mpa) | Kusimba Kwesimba (N/mm2)/(Mpa) | Kureba (%) | |
| Q235B | ≥235 | 370-500 | ≥26 |
| Q345B | 345 | 470-630 | ≥20 |
| Q345C | 345 | 470-630 | ≥21 |
| Q345D | 345 | 470-630 | ≥21 |
4. Mufananidzo Show:
5. Kumwe kurapa:
6. High Frequence Welded H danda:
Yakakwira-frequency yazvino inoshandiswa kupisa simbi yenzvimbo, uye inosungirirwa pasi pekuita kwesimba rekunze, pasina.
chero welding waya kana flux, uye inogona kuramba ichigadzirwa muhuwandu hukuru.
1) Yakasiyana-siyana yekutsanangurwa (chikamu chechikamu). Kureba, webhu, flange ukobvu uye flange upamhi inogona kusarudzwa zvinoenderana nemutengi
zvinodiwa zvesimbi ndiro welding. Inogona kushandiswa seyakasiyana-siyana kunze kweiyo chiyero cheH-beam inopisa.
2) Sarudza mhando dzakasiyana dzesimbi. H-matanda anopisa akakungurutswa anonyanya kunzi Q235B neQ345B. Apo mabheti maduku emhando dzakakosha dzesimbi
zvinodiwa, chirimwa chekugadzira hachikwanise kuvaburitsa. Welding inogona kusarudza ndiro yesimbi sezvinodiwa.
3) Chigadzirwa chine yakakwirira chaiyo uye yakanaka yepamusoro mhando. Nekuda kweiyo yakanyanya kurongeka uye yakanaka yepamusoro mhando yechigadzirwa chesimbi plate,
iyo H kunyatsoita mushure mekunama zvakare yakakwira uye mhando yepamusoro zvakare yakanaka. Kutsauka kwehukobvu hwemahwendefa esimbi (anoshandiswa kugadzira H-matanda)
kazhinji izvikamu zvishoma zvegumi zvemamilimita kusvika pazvikamu zvishoma zvegumi zvemirimita, ukuwo ukobvu hwekutsaudzira kweh-matanda anopisa anokungurutswa ari zvikamu zvishoma mugumi zve
millimeter kusvika 1 millimeter, inova kanokwana kagumi musiyano.
4) Kuita kwakagadzikana uye kurongeka kwakanaka kwemukati. Sezvo kugadzirwa kwesimbi mahwendefa kubva pakunyunguduka kuenda kunoramba kuchikanda kusvika pakukunguruka ndiko
yakakwirira kupfuura iyo inopisa-yakaputirwa H-matanda ) zviratidzo zvinovimbika uye zvakagadzikana.
5) Zviri nyore kuve nekuremara kwewelding. Kunyangwe paine akawanda mabhenefiti ataurwa pamusoro apa, nekuda kweiyo welding kuumba, pane welding zvakasara
Thermal stress in the welding area, chimiro chenzvimbo yewelding chakasiyana, uye kune kushushikana kwemaitiro, izvo zvinowanzoitika kune welding defects.
Nekuenderera mberi kwekuvandudzwa kwewelding level uye nhanho yekurapa kupisa, izvi zvisingabatsiri zvinoderedzwa zvishoma nezvishoma. Nhasi, yemhando yepamusoro welded
H-matanda akashandiswa munzvimbo dzakasiyana siyana kusanganisira indasitiri yemauto uye aerospace.
