Lub kaum sab xis hlau, tseem hu ua lub kaum sab xis hlau, yog cov qauv siv dav siv hauv kev lag luam, kev tsim kho, kev tsim khoom, thiab lwm yam kev lag luam. Nws cov yam ntxwv tseem ceeb yog L-zoo li tus ntoo khaub lig- ntu, uas sib txuas lub zog, ruaj khov, thiab tus nqi- ua tau zoo, ua rau nws yog ib qho khoom siv tseem ceeb hauv ntau yam haujlwm engineering. Kab lus no yuav qhia meej txog cov kaum sab xis steel, npog nws lub ntsiab lus, kev faib tawm, cov khoom siv, qhov zoo, cov xwm txheej ntawm daim ntawv thov, thiab cov txheej txheem xaiv, los pab koj txiav txim siab meej rau koj cov haujlwm.
Steel angles yog dab tsi?
Lub kaum sab xis steel yog ib hom qauv hlau uas ua los ntawm cov txheej txheem kub dov los yog txias dov, nrog ib tug ntoo khaub lig-section nyob rau hauv cov duab ntawm ib txoj cai-angle L. Ob sab ntawm lub L zoo li yuav sib npaug zos ntev los yog tsis sib npaug. Qhov saum npoo tuaj yeem kho nrog galvanization lossis pleev xim raws li kev siv ib puag ncig, lossis nws tuaj yeem nyob hauv nws lub xeev qub (cov khoom siv dub). Nws yog tsim los ntawm dov steel billets nrog tshwj xeeb dov tshuab, thiab nws qhov tseeb qhov tseeb thiab cov khoom siv kho tshuab yog ruaj khov. Vim nws cov qauv yooj yim thiab muaj zog load-cov kabmob muaj peev xwm, lub kaum sab xis steel feem ntau yog siv los tsim ntau yam qauv xws li thav duab, kev txhawb nqa, thiab cov hlua khi.
Classification ntawm Angle Steel
Raws li qhov sib txawv ntawm qhov ntev ntawm ob sab, lub kaum sab xis steel feem ntau muab faib ua ob pawg: lub kaum sab xis steel thiab tsis yog - lub kaum sab xis steel.
Lub kaum sab xis steel
Lub kaum sab xis steel muaj ob sab sib npaug. Nws yog hom kev siv ntau tshaj plaws ntawm lub kaum sab xis steel thiab yog tus cwj pwm los ntawm nws cov lus qhia tshwj xeeb tau qhia los ntawm sab ntev thiab tuab (piv txwv li,40x40x5 steel kaumqhia ib sab ntev ntawm 40 millimeters thiab ib tug tuab ntawm 5 millimeters). Cov khoom siv sib npaug ntawm lub kaum sab xis steel yog sib npaug, thiab nws qhov kev teeb tsa thiab kev sib txuas yog yooj yim. Nws yog qhov tsim nyog rau feem ntau ntawm cov qauv txheej txheem, xws li lub tsev thav duab, railings, cov khoom siv hauv paus, thiab lwm yam.
Lub kaum sab xis hlau tsis sib xws
Lub kaum sab xis hlau tsis sib xws muaj ob sab nrog qhov ntev sib txawv. Cov lus qhia tshwj xeeb yog qhia los ntawm qhov ntev ntawm sab ntev, qhov ntev ntawm sab luv, thiab tuab (piv txwv li, 75x50x6 qhia txog sab ntev ntawm 75 millimeters, sab luv ntawm 50 millimeters, thiab tuab ntawm 6 millimeters). Hom lub kaum sab xis steel yog tsim tshwj xeeb rau cov xwm txheej uas qhov kev faib khoom tsis sib xws. Sab ntev tuaj yeem tiv taus ntau zog thiab feem ntau yog siv rau hauv kev txhawb nqa choj, kev tsim khoom nkoj, cov tshuab hnyav hnyav, thiab lwm yam khoom tshwj xeeb.
Cov ntaub ntawv thiab qib ntawm lub kaum sab xis steel
Cov khoom ntawm lub kaum sab xis steel ncaj qha txiav txim siab nws lub zog, corrosion kuj thiab siv tau. Cov hauv qab no yog cov khoom siv feem ntau thiab lawv cov qib sib xws:
Cov pa roj carbon steel
Qhov no yog cov khoom siv ntau tshaj plaws rau lub kaum sab xis steel, uas muaj cov ductility zoo heev, weldability thiab nqi -effectiveness. Cov qib uas muaj xws li:
Q235 (A3 steel): Tsawg- carbon steel, nrog cov yas zoo heev thiab weldability, yog tsim rau cov qauv dav dav xws li lub tsev thav duab, laj kab, thiab kev txhawb nqa hnyav. Nws yog tus nqi -kev xaiv zoo rau cov uas tsis yog- siab- cov haujlwm thauj khoom.
- Q355 (yav tas los Q345): Cov pa roj carbon nruab nrab, nrog lub zog zoo dua thiab tawv dua piv rau Q235. Haum rau hnyav- cov qauv ua haujlwm, txuas hniav, cov khoom siv kho tshuab, thiab cov ntawv thov uas yuav tsum tau muaj kev tiv thaiv kev cuam tshuam thiab siab.
Hlau alloy
Alloy lub kaum sab xis steel yog optimized rau cov khoom tshwj xeeb los ntawm kev ntxiv cov khoom xws li manganese, silicon, thiab chromium. Nws yog tsuas yog siv nyob rau hauv tshwj xeeb ib puag ncig xws li kub, siab siab, thiab corrosive tej yam kev mob. Cov qib sib xws muaj xws li Q460 thiab Q690, uas yog tsim rau cov tshuab hnyav, offshore platforms, industrial boilers, thiab lwm yam xwm txheej.
Stainless hlau
Stainless hlau kaum bar muaj npe nrov rau lawv zoo heev corrosion kuj thiab zoo nkauj thov. Cov qib sib xws yog 304 thiab 316.
- 304 stainless hlau: Resistant mus rau feem ntau atmospheric corrosion thiab me me tshuaj ib puag ncig, haum rau cov zoo nkauj tej yaam num, khoom noj khoom haus, cov qauv sab nraum zoov, thiab lwm yam.
- 316 stainless hlau: muaj molybdenum, muab kev tiv thaiv corrosion los ntawm seawater, acids, bases thiab hnyav tshuaj. Nws yog tsim rau marine engineering, tshuaj nroj tsuag, ntug hiav txwv dej, thiab lwm yam.
Qhov zoo ntawm lub kaum sab xis steel
Lub kaum sab xis steel sawv tawm ntawm cov khoom siv, thiab vim nws ntau qhov zoo, nws tau dhau los ua qhov kev xaiv zoo tshaj plaws rau engineers thiab manufacturers:
- Cov qauv tsim muaj zog: L-zoo li tus ntoo khaub lig-section txhim khu lub load- bearing muaj peev xwm thiab rigidity, zoo tiv thaiv rog xws li khoov, twisting, thiab siab. Nws tuaj yeem tsim cov qauv ruaj khov nrog cov khoom siv tsawg.
- Kev siv dav dav: Npog ntau qhov ntau thiab tsawg, cov ntaub ntawv thiab hom (equilateral / non{0}}equilateral), thiab tuaj yeem hloov kho kom tau raws li qhov xav tau ntawm ntau yam haujlwm xws li kev kho kom zoo nkauj rau cov khoom siv hnyav.
- Yooj yim rau nruab thiab sib dhos: Nws tuaj yeem txiav tau yooj yim, welded, drilled thiab khoov siv cov cuab yeej zoo tib yam. Tus qauv L- zoo li tus qauv yog yooj yim rau kev sib txuas thiab sib dhos, uas ua rau lub sijhawm tsim kho thiab txo cov nqi zog.
Tus nqi zoo tshaj -kev ua tau zoo: Piv nrog rau lwm yam khoom siv xws li cov ces kaum steel thiab I-beam steel, nws muaj cov nqi tsim khoom qis dua thiab siv cov khoom siv ntau dua, pab tswj cov phiaj xwm phiaj xwm.
- Zoo heev durability: Carbon steel lub kaum sab xis hlau tuaj yeem tiv thaiv xeb los ntawm galvanization lossis pleev xim, thaum lub kaum sab xis stainless hlau muaj qhov ntev - corrosion kuj thiab tuaj yeem ua kom lub neej ntev kev pab cuam txawm nyob rau hauv ib puag ncig hnyav.
Lub ntsiab daim ntawv thov scenarios ntawm lub kaum sab xis steel
Kev vam khom rau nws cov kev ua tau zoo thiab kev ua tau zoo, lub kaum sab xis steel yog dav siv hauv ntau yam lag luam thiab cov xwm txheej:
Kev tsim kho kev lag luam
Raws li cov khoom tseem ceeb rau kev tsim kho, nws yog siv rau hauv lub ru tsev trusses, phab ntsa ncej, pem teb kev txhawb nqa, stair railings, lub qhov rooj thiab qhov rais thav duab, thiab lwm yam. Equilateral steel feem ntau yog siv nyob rau hauv vaj tse thiab coj mus muag vaj tse, thaum lub kaum sab xis steel yog haum rau loj -span lug xws li chaw ntau pob thiab txuas hniav.
Kev tsim khoom lag luam
Siv rau kev tsim cov thav duab, hauv paus thiab kev txhawb nqa ntawm cov tshuab, cov cuab yeej siv thiab cov khoom siv, nws muab cov qauv kev txhawb nqa ruaj khov rau cov khoom siv, ua kom muaj kev nyab xeeb thiab txhim khu kev qha.
Infrastructure project
Nws ua lub luag haujlwm tseem ceeb hauv kev tsim kho vaj tse xws li txoj kev, kev tsheb ciav hlau, thiab cov choj, yog siv rau cov guardrails, choj piers, qhov kev txhawb nqa, teeb liab ntauwd thav duab, thiab lwm yam. Nws tuaj yeem tiv taus cov khoom hnyav thiab huab cua hnyav.
Kho kom zoo nkauj thiab siv txhua hnub
Stainless hlau los yog galvanized lub kaum sab xis steel yuav siv tau rau kho kom zoo nkauj tej yaam num xws li khw malls, sab nraum zoov billboards, thiab vaj railings, thiab nws kuj yog tsim nyog rau kev tsim cov khoom niaj hnub xws li txee, workbench, thiab cia racks.
Yuav ua li cas xaiv lub kaum sab xis hlau sai sai?
Cov txheej txheem xaiv yuav tsum yog raws li kev ntsuam xyuas dav dav ntawm qhov yuav tsum tau ua ntawm qhov project, load tej yam kev mob, thiab ib puag ncig yam. Los ntawm ua raws li cov kauj ruam hauv qab no, kev xaiv ceev thiab raug tuaj yeem ua tiav:
Qhia meej txog qhov yuav tsum tau ua
Ua ntej, txiav txim siab hom kev thauj khoom uas lub kaum sab xis steel yuav tsum tau dais (zoo li qub load, dynamic load, cuam tshuam load). Rau lub teeb loads (xws li cov hniav railings), Q235 equilateral kaum steel siv tau; rau cov khoom hnyav (xws li kev txhawb nqa choj, cov khoom siv hauv paus), Q355 lossis alloy steel lub kaum sab xis steel yuav tsum raug xaiv, thiab cov thickness tsim nyog yuav tsum tau sib phim.
2. Xaiv qhov sib npaug lossis isosceles lub kaum sab xis steel
Thaum lub load yog sib npaug, sib npaug lub kaum sab xis steel yuav tsum tau xaiv ua ntej, coj mus rau hauv tus account qhov yooj yim ntawm installation thiab kev tswj tus nqi; thaum lub load tsis sib npaug (xws li lub zog loj dua ntawm ib sab), tsis sib npaug -lub kaum sab xis steel yuav tsum raug xaiv, nrog rau sab ntev dua rau lub ntsiab thauj khoom.
3. Txiav txim siab cov khoom tsim nyog
Kev xaiv raws li kev siv ib puag ncig:
Rau qhov chaw nyob sab hauv tsev: Q235 carbon steel kaum bar. Rau sab nraum zoov lossis qhov chaw ntub dej: galvanized Q235, Q355 lub kaum sab xis kom tiv thaiv xeb. Rau corrosive ib puag ncig (tshuaj lom neeg, dej hiav txwv): 304 lossis 316 stainless hlau kaum bar. Rau siab -load industrial scenarios: Q355 los yog alloy steel kaum bar.
4. Txiav txim siab qhov tshwj xeeb (sab ntev thiab tuab)
Sab ntev thiab tuab yuav tsum tau txiav txim siab raws li cov qauv tsim qauv suav lossis cov qauv kev lag luam kom tsis txhob loj dhau (nce nqi) lossis dhau me me ( cuam tshuam rau kev nyab xeeb) qhov ntev. Rau tej yaam num zoo tib yam, tus qauv specifications (xws li 40x40x4, 50x50x5) tuaj yeem xaiv raws li kev paub dhau los.
5. Kev soj ntsuam zoo thiab ntawv pov thawj
Xyuas kom meej tias lub kaum sab xis steel ua raws li lub teb chaws lossis thoob ntiaj teb cov qauv (xws li lub teb chaws tus qauv GB / T 9787, los yog American standard ASTM A36), tshuaj xyuas seb puas muaj tej yam tsis xws luag xws li xeb, tawg, los yog deformation ntawm qhov chaw, thiab xyuas cov ntaub ntawv pov thawj los xyuas kom meej tias cov kev ua tau zoo raws li qhov yuav tsum tau.
Xaus
Lub kaum sab xis steel ua haujlwm raws li cov khoom siv hauv tsev, muaj kev siv dav, kev ua tau zoo, thiab tus nqi siab - ua tau zoo. Kev nkag siab txog nws cov kev faib tawm, cov khoom siv, qhov zoo, thiab cov txheej txheem kev xaiv ua rau kev xaiv ntawm lub kaum sab xis zoo tshaj plaws rau ntau yam haujlwm (xws li ntawm cov hniav me me mus rau cov qauv loj loj). Yog tias koj xav tau siab- cov khoom lag luam zoo steel uas ua tau raws li koj qhov yuav tsum tau ua, thov koj xav tiv tauj peb rau cov lus qhia tshaj lij thiab cov kev daws teeb meem.
