700 × 300 H beam Q235B thiab Q345B beam, Kuv nqaj hlau qauv Universal Kem
1. Kev qhia yooj yim:
H-beam yog ib yam ntawm kev lag luam seem thiab kev ua haujlwm siab nrog ntau qhov kev ua kom zoo dua ntawm qhov chaw faib khoom thiab
ntau tsim nyog lub zog-rau-qhov hnyav piv. Nws muaj npe tom qab nws seem yog tib yam li tsab ntawv Askiv "H". Raws li txhua qhov chaw ntawm
H-beam yog teem rau ntawm lub kaum sab xis, H-beam muaj qhov zoo ntawm kev khoov muaj zog, kev tsim kho yooj yim,
nqi txuag thiab lub teeb yuag nyob rau hauv tag nrho cov lus qhia, thiab tau dav siv.
2. Tshuaj muaj pes tsawg leeg
| Qib | Chemical Composition (%) | ||||
| C | Si | Mn | P | S | |
| q235 ib | ≤ 0.20 | ≤ 0.35 | ≤ 1.40 | ≤ 0.045 | ≤ 0.045 |
| q345 ib | ≤ 0.20 | ≤0.50 | ≤ 1.70 | ≤ 0.035 | ≤ 0.035 |
| qw 345c | ≤ 0.20 | ≤0.50 | ≤ 1.70 | ≤ 0.035 | ≤ 0.030 |
| qw 345d | ≤ 0.18 | ≤0.50 | ≤ 1.70 | ≤ 0.035 | ≤ 0.025 |
3. Mechanical Properties
| Qib | Mechanical Property | ||
| Yield zog (N / mm2) / (Mpa) | Tensile zog (N / mm2) / (Mpa) | Elongtation (%) | |
| q235 ib | ≥235 | 370-500 Nws | ≥ 26 |
| q345 ib | 345 | 470-630 : kuv | ≥ 20 |
| qw 345c | 345 | 470-630 : kuv | ≥ 21 |
| qw 345d | 345 | 470-630 : kuv | ≥ 21 |
4. Duab Qhia:
5. Kev kho mob ntxiv:
6. High Frequence Welded H beam:
High-frequency tam sim no yog siv rau hauv zos tshav kub ntawm cov hlau nto, thiab nws yog welded nyob rau hauv qhov kev txiav txim ntawm sab nraud quab yuam, tsis muaj
txhua qhov vuam hlau los yog flux, thiab tuaj yeem ua tsis tu ncua hauv ntau qhov ntau.
1) Ntau yam kev qhia tshwj xeeb (seem loj). Qhov siab, lub vev xaib, flange thickness thiab flange dav tuaj yeem xaiv raws li cov neeg siv khoom
cov kev xav tau rau steel phaj welding. Nws tuaj yeem siv los ua ntau yam tsis yog tus qauv ntawm kub dov H-beam.
2) Xaiv ntau hom hlau. Kub-dov H-beams yog Q235B thiab Q345B. Thaum me me ntawm cov qib steel tshwj xeeb yog
xav tau, cov chaw tsim khoom tsis tuaj yeem tsim lawv. Vuam tuaj yeem xaiv steel phaj raws li xav tau.
3) Cov khoom muaj siab precision thiab zoo nto zoo. Vim lub siab precision thiab zoo nto zoo ntawm steel phaj khoom,
H precision tom qab vuam kuj yog siab thiab qhov zoo ntawm qhov chaw kuj zoo. Lub thickness sib txawv ntawm cov hlau phaj (siv rau vuam H-beams)
feem ntau yog ob peb feem kaum ntawm ib millimeter mus rau ob peb feem kaum ntawm ib millimeter, thaum lub thickness sib txawv ntawm kub dov H-beams yog ob peb feem kaum ntawm ib
millimeter mus rau 1 millimeter, uas yog ze li ntawm 10 npaug ntawm qhov sib txawv.
4) Kev ua haujlwm ruaj khov thiab lub koom haum zoo. Txij li thaum zus tau tej cov hlau daim hlau los ntawm smelting mus nruam casting mus dov yog
siab tshaj qhov kub-dov H-beams) cov cim qhia tau txhim khu kev qha thiab ruaj khov.
5) Nws yog ib qho yooj yim kom muaj vuam tsis xws luag. Txawm hais tias muaj ntau yam zoo uas tau hais los saum toj no, vim qhov kev sib txuas ntawm vuam, muaj qhov seem welding
thermal stress nyob rau hauv lub vuam cheeb tsam, cov qauv ntawm lub vuam cheeb tsam yog txawv, thiab muaj cov yam ntxwv kev nyuaj siab, uas yog feem ntau welding tsis xws luag.
Nrog rau kev txhim kho txuas ntxiv ntawm qib vuam thiab qib kev kho cua sov, cov kev tsis zoo no maj mam txo. Niaj hnub no, high-zoo welded
H-beams tau siv nyob rau hauv ntau yam xws li kev lag luam tub rog thiab aerospace.
