700×300 H ugongolo Q235B kanye Q345B ugongolo, mina ugoqo Steel isakhiwo Universal Column
1. Umyalelo olula:
I-H-beam iwuhlobo lwesigaba esinomnotho kanye nesigaba esisebenza kahle kakhulu esinokusabalalisa okuthuthukisiwe kwezindawo ezihlukene kanye
isilinganiso samandla nesisindo esinengqondo. Iqanjwe ngesigaba sayo iyafana nelesiNgisi elithi “H”. Njengoba zonke izingxenye ze
i-H-beam ihlelwe ngama-engeli angakwesokudla, i-H-beam inezinzuzo zokumelana okuqinile nokugoba, ukwakhiwa okulula,
ukonga izindleko kanye nesisindo esincane kuzo zonke izinhlangothi, futhi sekusetshenziswe kabanzi.
2. Ukwakheka Kwamakhemikhali
| Ibanga | Ukwakhiwa Kwekhemikhali (%) | ||||
| 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. Izakhiwo Zemishini
| Ibanga | Impahla Mechanical | ||
| Amandla Esivuno (N/mm2)/(Mpa) | Amandla Okuqina (N/mm2)/(Mpa) | Ubude (%) | |
| Q235B | ≥235 | 370-500 | ≥26 |
| Q345B | 345 | 470-630 | ≥20 |
| Q345C | 345 | 470-630 | ≥21 |
| Q345D | 345 | 470-630 | ≥21 |
4. Umbukiso Wezithombe:
5. Ukwelashwa okwengeziwe:
6. I-High Frequence Welded H beam:
I-high-frequency current isetshenziselwa ukushisa endaweni yensimbi, futhi ishiselwe ngaphansi kwesenzo samandla angaphandle, ngaphandle
noma iyiphi intambo yokushisela noma i-flux, futhi ingakhiqizwa ngokuqhubekayo ngobuningi.
1) Uhlu olubanzi lokucaciswa (usayizi wesigaba). Ubude, iwebhu, ukujiya kwe-flange nobubanzi be-flange kungakhethwa ngokusho kwekhasimende
izidingo zensimbi yensimbi yokushisela. Ingasetshenziswa njengenhlobonhlobo ngaphandle kwezinga le-hot-rolled H-beam.
2) Khetha izinhlobo ezihlukahlukene zensimbi. Imishayo ye-H egoqwe ngokushisayo ikakhulukazi i-Q235B ne-Q345B. Lapho amaqoqo amancane amamaki ensimbi akhethekile
ezidingekayo, imboni yokukhiqiza ayikwazi ukuzikhiqiza. I-Welding ingakhetha ipuleti lensimbi njengoba kudingeka.
3) Umkhiqizo unokunemba okuphezulu kanye nekhwalithi enhle yendawo. Ngenxa yokunemba okuphezulu kanye nekhwalithi enhle yendawo yomkhiqizo wepuleti lensimbi,
ukunemba kwe-H ngemuva kokushisela nakho kuphezulu futhi nekhwalithi ephezulu nayo yinhle. Ukuchezuka kogqinsi kwamapuleti ensimbi (asetshenziselwa ukushisela imishayo ye-H)
ngokuvamile iyingxenye yeshumi embalwa yemilimitha ukuya kwezingxenye eziyishumi ezimbalwa zemilimitha, kuyilapho ukuchezuka kogqinsi lwemishayo egoqelwe ngokushisayo iyingxenye yeshumi embalwa ye
imilimitha ukuya kumilimitha elingu-1, okucishe kube ngu-10 umehluko.
4) Ukusebenza okuzinzile nokuhlelwa okuhle kwangaphakathi. Kusukela ekukhiqizeni amapuleti ensimbi kusukela ekuncibilikeni kuya ekubunjweni okuqhubekayo kuya ekugingqeni
ephakeme kunaleyo ye-hot-rolled H-beams ) izinkomba zithembekile futhi zizinzile.
5) Kulula ukuba nezinkinga zokushisela. Nakuba kunezinzuzo eziningi ezishiwo ngenhla, ngenxa yokubunjwa kwe-welding, kukhona okusele kwe-welding
ukucindezeleka okushisayo endaweni ye-welding, isakhiwo sendawo ye-welding sihlukile, futhi kukhona ukucindezeleka kwesakhiwo, okujwayele ukukhubazeka kwe-welding.
Ngokuthuthukiswa okuqhubekayo kwezinga lokushisela kanye nezinga lokwelapha ukushisa, lezi zimbi ziyancipha kancane kancane. Namuhla, izinga eliphezulu ashiselwe
I-H-imishayo isetshenziswe emikhakheni ehlukahlukene ehlanganisa imboni yezempi kanye ne-aerospace.
