Tianjin Brisk Metalwork Co., Ltd. yog ib qho ntawm cov ua lag luam thiab cov chaw muag khoom ntawm kev kho cua sov square hollow seem hauv Suav teb. Peb muaj lub ntiaj teb- cov cuab yeej tsim khoom thiab muaj peev xwm tsim tau zoo. Thov koj xav tias dawb mus yuav bulk check tshav kub kho square hollow seem los ntawm peb lub hoobkas.
Tianjin Brisk Steel yog ib qho ntawm cov chaw tsim khoom ntawm Cold Formed ERW Rectangular Hollow Section hauv Suav teb. Peb cov khoom raug xa tawm mus rau Middle East, Southeast Asia, Europe, New Zealand, thiab lwm thaj chaw.Yog tias koj xav paub ntau ntxiv txog peb cov khoom, thov hu rau peb thiab xa koj daim ntawv yuav khoom.
Technical ntawm Rectangular Steel Tube
Sourcing structural hollow seem rau thoob ntiaj teb cov lis dej num yuav tsum muaj kev nkag siab meej ntawm cov tshuab thiab metallurgical hauv qab cov khoom:
- Cov txheej txheem siab -Frequency Induction (HFI/ERW):Peb cov kab RHS siv cov qauv zoo tshaj plaws carbon steel strip coils uas tau txias heev - dov rau hauv cov duab ntawm chav tsev kub. Lub seam longitudinal yog tsis tu ncua forged siv siab - zaus hluav taws xob tsis kam. Cov txheej txheem kev sib txuas molecular no yuav tsum tau xoom muab tub lim hlau, kom ntseeg tau tias cov kab vuam tuav cov yam ntxwv zoo ib yam rau niam txiv lub cev steel.
- Tus Txheej Txheem Txias -Forming Advantage:Kev ua haujlwm txias ua haujlwm- hardens cov hlau matrix, ib txwm ua rau ob qho tib si lub zog thiab tensile lub zog ntawm seem piv rau nws cov ntawv nyoos. Qhov no muab tus nqi zoo kawg nkaus -txoj kev zoo rau kub- cov ntaub ntawv tiav rau feem ntau ntawm cov ntawv thov pej xeem thiab kev lag luam.
Cov txheej txheem kev kho cua sov tseem ceeb
Kev sib tw (+A)
- Txheej txheem:Cua sov thiab tuav ntawm qhov kub thiab txias, tom qab ntawd maj mam txias.
- Muaj nuj nqi:Tshem tawm cov kev ntxhov siab uas nyob ntawm qhov txias txias los yog vuam; softens cov khoom; Txhim khu cov yas rau khoov thiab stamping (tiv thaiv kev tawg thaum khoov).
- Daim ntawv thov:Cov rooj tog zaum, cov khoom siv kho kom zoo nkauj, cov khoom siv khoov khoov (xws li, dub annealed square hollow seem).
normalizing
- Txheej txheem:Cua sov mus rau qhov ntsuas kub tseem ceeb tom qab cua txias.
- Muaj nuj nqi:Refines grain qauv thiab homogenizes microstructure; txhim kho lub zog, toughness, thiab machinability.
- Daim ntawv thov:General mechanical structures, brackets / kev txhawb nqa.
Quenching thiab Tempering (Q & T)
- Txheej txheem:Siab -kub quenching → ceev ceev (roj los yog dej) → tempering ntawm 500–650℃.
- Qhov zoo:Sib npaug siab zog thiab siab toughness; muaj qhov ua tau zoo dua kev qaug zog thiab thauj khoom -cov kabmob muaj peev xwm piv rau cov qauv square raj.
- Daim ntawv thov:Kev tsim kho tshuab, nqa cov cuab yeej, hnyav-cov haujlwm steel qauv, tsheb chassis.
Kev Ruaj Ntseg Kev Ruaj Ntseg
- Muaj nuj nqi:Tshwj xeeb tshem tawm cov kev ntxhov siab sab hauv uas tshwm sim los ntawm vuam seams los yog txheej txheem txias txias; tiv thaiv tom qab deformation los yog tawg.
Cov txiaj ntsig tseem ceeb tshaj tus qauv SHS:
- Uniform sab hauv microstructure; txo kev ntxhov siab concentration ntawm cov ces kaum.
- Relieved residual stress minimizes deformation thaum lub sij hawm tom ntej vuam los yog machining.
- quenched thiab tempered versions muab cov txiaj ntsig zoo dua thiab lub zog tensile, ua kom lub teeb yuag, thauj khoom - cov ntawv thov kev coj tus kheej.
- Annealed versions muaj ductility zoo heev, haum rau cov yeeb nkab dabtsi yog khoov, folding, thiab stamping.
- Superior qaug zog kev ua tau zoo, ua rau lawv zoo tagnrho rau cov khoom siv rau dynamic loads.
- Thaum tshav kub kub kho square hollow seem nrog tag nrho lub cev quenching & tempering rau siab load machinery.
- Kev ntxhov siab -relief annealed SHS tshem tawm cov kev ntxhov siab nyob rau hauv kom yooj yim khoov & fabrication.
- Cov seem square hollow raws li EN 10219 & ASTM A500 rau kev tsim kho.
FAQ
Q: Yuav ua li cas lub tshav kub - kho SHS raj piv rau tus qauv txias- ua SHS raj thaum lub sij hawm welding hnyav?
A: Thaum lub sij hawm welding ntawm qhov txias txias - tsim SHS, huab cua kub ntawm qhov vuam arc tsim qhov kub tsis sib xws uas cuam tshuam nrog cov xauv - hauv qhov txias - ua rau muaj kev ntxhov siab. Qhov no feem ntau ua rau muaj kev cuam tshuam hauv cheeb tsam lossis micro- tawg hauv tshav kub-Tebchaws cuam tshuam (HAZ). Akub- kho SHStsis muaj qhov seem seem los tso tawm, kom ntseeg tau tias HAZ txias sib npaug thiab khaws cia siab tawv yam tsis tas yuav tsum tau ua ntej- cua sov mus.
Q: Dab tsi yog qhov cuam tshuam ntawm kev tshaj tawm -kev kho cua sov ntawm "Yield Strength" profile ntawm lub kaum sab xis?
A: Cold forming artificially boosts yield zog nyob rau hauv cov ces kaum ntawm ib square raj ntawm strain hardening, tab sis nyob rau hauv tus nqi ntawm cov khoom elongation thiab cuam tshuam kuj. Tshaj tawm -forming normalizing rov pib dua cov qauv siv lead ua. Thaum qhov no me ntsis txo qis cov khoom siv dag zog nyob rau hauv cov ces kaum, nws tsim kom muaj lub zog tawm los ntawm tag nrho cov seem thiab txhawb nqa cov khoom siv ductility (Elongation Ntau dua lossis sib npaug li 22%), ua kom muaj kev nyab xeeb lub zog nqus nyob rau hauv cov xwm txheej dhau.
Q: Vim li cas cov cua sov-kho SHS tshwj xeeb rau cov cranes txawb thiab cov khoom siv mining?
A: Mobile crane booms thiab hnyav mining lug muaj kev mob siab, rov ua dua dynamic loads thiab kev co hnyav. Nyob rau hauv cov xwm txheej no, txhua qhov kev tsim khoom sab hauv los yog nyuaj, cov fab nkig ua raws li qhov chaw pib ua rau qaug zog tawg. Thaum tshav kub kub-kho SHS muab ib qho isotropic, zoo-grain microstructure nrog cov qauv toughness, muab lub chassis siab tsis kam mus rau dynamic qaug zog tsis ua hauj lwm ntev lub neej.
Q: Koj lub Hoobkas ua li cas thiaj paub tseeb tias tag nrho - lub cev normalization tau ua tiav thoob plaws hauv qhov hnyav - phab ntsa square raj?
A: Peb tswj hwm nruj metallurgical zoo tswj. Ntxiv rau qhov ntsuas kub ntawm lub cub tawg tas li, cov qauv ntawm txhua qhov cua sov- kho ntau lawm yog raug rauMicrostructural Metallographic Analysisnyob rau hauv optical microscopes los xyuas kom meej cov nplej refinement. Qhov no yog ua tiav los ntawm tag nrho - lub cevHardness Test nyob rau hauv lub tiaj tus thiab ces kaum, kev puas tsuajCharpy Impact Test, thiab 100% Ultrasonic Testing (UT) kom lav qhov tsis xws luag -dawb sab hauv qauv.
Cim npe nrov: Kev kho cua sov square hollow seem, Tuam Tshoj kub kho square hollow seem manufacturers, lwm tus neeg, Hoobkas
