Gnee Hlau (Tianjin) Co., Ltd
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Tus nqi sib tw
Peb cov nqi sib tw, thiab peb muab cov nqi hloov pauv hloov pauv thiab txo nqi kom ntseeg tau tias peb cov neeg siv khoom txaus siab.
Pab neeg muaj kev paub
Peb pab pawg muaj cov kws tshaj lij nrog cov kws tshaj lij uas xav tau los ua kom tau raws li cov kev xav tau tshwj xeeb ntawm peb cov neeg siv khoom.
Ntiaj teb no muaj nyob
Peb muaj kev muaj zog thoob ntiaj teb, nrog cov chaw ua haujlwm hauv ntau qhov chaw, ua rau peb muab peb cov kev pabcuam rau cov neeg siv khoom thoob ntiaj teb.
Kev Loj Hlob
Peb tau cog lus los txhawb kev txhim kho kom ruaj khov los ntawm kev ua haujlwm nrog cov tuam ntxhab thiab cov muag khoom uas ua tau raws li peb cov qauv kev coj ua thiab ib puag ncig.
Cold rolled steel yog ib hom hlau uas tau ua tiav ntawm qhov kub thiab txias kom nws lub zog thiab hardness. Qhov no yog ua tiav los ntawm kev siv cov chais uas compress cov hlau, ua rau nws mus rau cov yas deformation thiab ua ntau ntom thiab compact. Cold dov steel feem ntau yog siv rau hauv cov ntawv thov uas yuav tsum tau muaj kev ua haujlwm siab thiab raug, xws li hauv kev tsim cov cav, cov khoom siv hluav taws xob, thiab cov khoom siv. Nws kuj yog siv nyob rau hauv kev tsim kho kev lag luam, los tsim cov khoom xws li vov tsev thiab siding cov ntaub ntawv, raws li zoo raws li nyob rau hauv lub automotive kev lag luam, rau zus tau tej cov tsheb ntas thiab lub cev panels.
Txhim kho nto tiav
Cold-rolled steel undergoes cov txheej txheem dov nyob rau hauv chav tsev kub, uas ua rau ib tug smoother thiab ntau refined nto tag piv rau kub-dov hlau. Cov txheej txheem txias-rolling txo qhov tsis zoo ntawm qhov chaw, xws li nplai lossis roughness, muab qhov zoo nkauj thiab zoo nkauj.
Dimensional Accuracy thiab Consistency
Cold-dov hlau yog ua tiav nrog nruj me ntsis kam rau ua, kom ntseeg tau zoo ib yam thickness, dav, thiab ntev ntawm cov khoom. Qhov kev txiav txim siab no tso cai rau kev sib koom ua ke yooj yim dua thiab sib dhos ntawm cov khoom siv txias-dov hlau hauv ntau daim ntawv thov.
Ua kom muaj zog
Cold-rolling compresses thiab ua haujlwm-hardens cov hlau, ua rau muaj zog tensile thiab hardness. Cold-dov hlau feem ntau pom muaj cov khoom siv ntau dua piv rau cov hlau kub dov, ua rau nws tsim nyog rau cov ntawv thov uas xav tau ntau dua lub zog thiab kav ntev.
Zoo dua Formability
Cold-dov hlau yog tsim tau zoo heev thiab tuaj yeem ua tau yooj yim zoo li, khoov, lossis tswj tsis tau tawg lossis tawg. Nws txhim kho ductility thiab malleability tso cai rau kev ua haujlwm nyuaj, xws li kev sib sib zog nqus los yog dabtsi yog khoov, tsis muaj deformation lossis cov khoom tsis ua haujlwm.
Tighter Thickness Tolerances
Cold-rolled steel muaj nruj dua thickness kam rau ua piv rau kub-dov hlau, kom ntseeg tau tias zoo ib yam thiab meej cov ntaub ntawv thickness thoob plaws hauv daim ntawv los yog coil. Cov yam ntxwv no muaj txiaj ntsig zoo hauv cov ntawv thov uas yuav tsum muaj kev tswj xyuas nruj me ntsis lossis qhov xav tau ntawm cov ntsuas nyias nyias.
Txhim kho Surface Hardness
Cold-rolled steel exhibits nce saum npoo hardness vim cov txheej txheem ua hauj lwm-hardening thaum lub sij hawm txias dov. Qhov hardness no muab kev tiv thaiv zoo dua rau hnav, puas, thiab khawb, ua kom txias-kuav los tiag steel haum rau cov ntawv thov uas xav tau qhov chaw ruaj khov thiab khawb-resistant.
Zoo dua Surface Flatness
Cold-dov hlau los yog coils muaj cov yam ntxwv zoo heev flatness, nrog tsawg deviations los yog warping. Cov yam ntxwv no yog qhov tseem ceeb rau cov ntawv thov uas xav tau lub tiaj tus, txawm tias qhov chaw, xws li tsheb vaj huam sib luag, khoom siv, lossis rooj tog hlau.
Nto tiav
Cov ntawv txias dov steel muaj qhov smoother thiab zoo ib yam ua tiav vim yog cov txheej txheem dov ntawm qhov kub thiab txias. Qhov no ua rau lawv zoo haum rau cov ntawv thov uas zoo li qhov tseem ceeb, xws li hauv cov khoom vaj tsev lossis cov khoom siv.
Dimensional raug
Cov txheej txheem txias dov ua kom nruj dua qhov ntev, ua rau cov ntawv txias dov steel ntau meej nyob rau hauv cov ntsiab lus ntawm thickness, dav, thiab ntev. Qhov tseeb no yog qhov tseem ceeb rau tej yaam num uas xav tau kev ntsuas meej.
Kub Rolled Steel Lub zog
Cov nplooj ntawv txias txias feem ntau pom muaj zog dua thiab hardness piv rau cov ntawv kub dov. Qhov no ua rau lawv haum rau cov ntawv thov uas xav tau cov peev txheej thauj khoom lossis qhov chaw ua haujlwm ntev yog qhov tseem ceeb.
Kev txiav txim siab nqi
Cov nplooj ntawv txias txias yog feem ntau kim dua li cov ntawv kub dov vim yog cov txheej txheem ua haujlwm ntxiv. Txawm li cas los xij, lawv qhov kev txhim kho saum npoo tiav thiab qhov tseeb qhov tseeb tuaj yeem cuam tshuam tus nqi siab dua rau cov haujlwm tshwj xeeb.
Weldability
Cov nplooj ntawv txias txias tau paub txog lawv qhov zoo tshaj plaws weldability, uas ua rau lawv zoo tagnrho rau cov ntawv thov uas xav tau vuam lossis lwm yam txheej txheem fabrication.
Cold Rolled Steel, feem ntau abbreviated li CR los yog CRS, yog lub npe hu ua ductile heev. Tsis tas li ntawd, nws yog formable rau nruab nrab kos daim ntaub ntawv, nrog rau tsis-shrinking thiab tsis creeping ntawm ambient kub.
Feem ntau, koj yuav pom cov ntsiab lus hais txog Cold Rolled Steel raws li nws piv rau Kub Rolled Steel. Nov yog qee qhov sib txawv tseem ceeb ntawm ob yam khoom:
Lub zog- Cold Rolled Steel tuaj yeem nthuav tawm txog li 20% lub zog ntau dua li Kub Rolled Steel, ua rau nws tsim nyog rau cov ntawv thov kev ntxhov siab.
Precision- Cold Rolled Steel tsis ntsws tom qab kev tsim cov txheej txheem, tso cai rau kev tsim cov khoom meej uas yuav tsum tau ua me ntsis kom tsis muaj kev ua haujlwm thib ob.
Nto- Cold Rolled Steel feem ntau muaj qhov smoother thiab ci ntsa iab, tsis muaj xeb thiab nplai.
Hom Cold Rolled Steel
Tsawg Carbon Steel
Hom hlau no nyiam dua rau nws cov ductility thiab tus nqi qis. Nws yog siv rau hauv kev tsim cov khoom siv, cov khoom siv tsheb, cov khoom siv, thiab cov vov tsev.
Nruab nrab Carbon Steel
Cov qib steel no yog siv rau hauv kev tsim kho cov khoom siv, cov cuab yeej, thiab cov khoom siv ua liaj ua teb. Nws kuj yog siv rau hauv kev tsim cov kav dej thiab cov raj.
Hlau alloy
Cov hlau no yog tsim los ntawm cov khoom sib txawv xws li manganese, silicon, thiab tooj liab. Nws yog ntau yam thiab siv nyob rau hauv manufacturing screws, bolts, thiab tsheb qhov chaw.
Stainless hlau
Hom hlau no tiv taus xeb thiab xeb thiab siv rau hauv kev tsim cov khoom siv hauv chav ua noj, cov cuab yeej phais, thiab cov khoom siv tsheb.
Kev kos duab zoo hlau
Nws yog siv los tsim cov khoom lag luam uas xav tau kev kos duab sib sib zog nqus, xws li cov khoom siv tsheb, thiab cov khoom siv.
Ntxiv Deep Drawing Zoo Hlau
Hom hlau no yog siv rau hauv kev tsim cov thawv steel, tank lub cev, thiab cov hlab ntsha siab.
High-Strength Low Alloy Steel
Hom hlau no yog siv rau hauv kev tsim cov choj, cov kav dej, thiab cov khoom siv tsim kho.
Dual-Phase Steel
Hom hlau no yog siv los tsim cov khoom siv tsheb xws li lub pob, qhov rooj, thiab cov ncej.
Kev tsim kho qhov chaw
Hauv kev tsim kho kev lag luam, txias dov hlau feem ntau yog siv rau kev tsim cov kab teeb, kab, kab hauv tsev, hauv pem teb decking, thiab lwm yam khoom siv hlau tseem ceeb.
Tsis tas li ntawd, nws yog siv nyob rau hauv ntau yam kev tsim kho tej yaam num xws li grain bins, railways, txuas hniav, cia racks, sheds, ntws dej, ru tsev thiab phab ntsa systems, vaj tse, garages, thiab lwm yam.
Ntau lawm Machinery
Txias dov steel yog kuaj thiab ua pov thawj tias muaj peev xwm ua kom muaj zog txog li 20%. Tsis tas li ntawd, txias dov muaj kev ua haujlwm siab stamping, zoo heev mechanical zog, thiab tsis muaj zog tawm los.
Hlau rooj tog thiab khoom siv hauv tsev
Vim nws cov txheej txheem kev ntxhov siab, txias dov hlau qhia txog qhov du thiab ruaj khov. Nws tseem tuaj yeem dov thinner txog li 50%, uas ua rau nws zoo tagnrho rau cov rooj tog hlau thiab khoom siv hauv tsev. Nws tsis tsuas lav koj lub neej kev pab cuam ntev dua, tab sis nws kuj muaj ntau qhov pom kev zoo nkauj thiab zoo nkauj.
Automotive Kev Lag Luam
Hlau yog ib feem ntawm kev lag luam tsheb. Cold rolled steel, tshwj xeeb tshaj yog siv ntau dua kub dov hlau vim nws hnav-resistant thiab shockproof zoo.
Nyob rau hauv hom kev lag luam no, txias dov steel yog siv los tsim cov khoom thauj khoom ntawm cov tsheb thiab tsheb. Tsis tas li ntawd, nws tseem tuaj yeem siv los tsim cov khoom siv hauv tsheb, hluav taws xob motors, roj tank, thiab lwm yam.
Kev Lag Luam Kev Lag Luam
Hauv kev tsim khoom lag luam, txias dov steel kuj yog cov khoom siv dav siv hlau. Hauv qab no yog cov nram qab no cov khoom siv txias dov:
Hlau kauj - Ib daim ntawv tiav, nyias, thiab tiaj tus hlau los yog sawb hu ua txias dov steel kauj.
Tube steel - Ib lub kav hlau uas muaj qhov ntev thiab ntu hu ua lub raj txias txias.
Cov ntawv hlau - Ib daim ntawv nyias, tiaj tus, thiab cov ntawv hlau hu ua cov ntawv txias txias.
Painted steel - Cold rolled steel muaj cov xim zoo nkauj thiab tsim tau, uas yog vim li cas nws yog lub hauv paus hlau ntawm ntau yam steel khoom xws li galvanized steel.
Cold-dov hlau yog ib hom hlau uas ua tiav ntawm chav tsev kub, uas ua rau lub ntsej muag du thiab ua kom zoo dua qub piv rau cov hlau kub dov. Cov txheej txheem tsim khoom rau txias-kuav los tiag steel muaj ntau theem, suav nrog:
Raw Material Xaiv:Thawj theem yog xaiv cov khoom siv raw uas tsim nyog, uas feem ntau yog cov ntawv qis carbon steel los yog coils. Kev xaiv ntawm cov khoom siv raw yog qhov tseem ceeb vim nws txiav txim siab qhov kawg ntawm cov khoom thiab qhov zoo ntawm cov khoom siv txias txias.
Ntxuav thiab Pickling: Cov khoom siv raw yog tom qab ntxuav thiab ntxuav kom tshem tawm cov impurities, xeb, lossis nplai uas muaj nyob rau saum npoo. Cov txheej txheem no yog ua tiav nrog kev sib xyaw ntawm cov kua qaub da dej thiab yaug.
Txias Rolling:Thaum cov khoom siv raw tau raug ntxuav thiab khaws cia, nws tau muab los ntawm cov txheej txheem ntawm cov yob hauv lub tshuab txias txias. Cov rollers compress thiab ua cov khoom rau qhov xav tau thickness, txo nws cov thickness txog li 50%. Cov txheej txheem no kuj ua rau cov khoom siv zog thiab muaj zog.
Annealing:Tom qab cov txheej txheem txias dov, cov khoom siv yuav raug muab tshem tawm, uas yuav tsum ua kom sov cov hlau mus rau qhov kub thiab txias thiab tuav nws nyob rau lub sijhawm ua ntej txias nws maj mam. Cov txheej txheem no yuav pab txo cov khoom hardness thiab ua kom nws cov ductility, ua kom yooj yim rau kev tsim thiab zoo.
Daim tawv nqaij hla Rolling:Cov khoom siv kuj tseem yuav dhau los ntawm daim tawv nqaij dov, uas cuam tshuam nws dhau los ntawm cov txheej txheem ntawm cov chais uas siv lub teeb siab los txhim kho cov khoom ntawm qhov chaw tiav.
Txiav thiab Slitting:Thaum cov hlau txias-dov tau ua tiav, nws raug txiav thiab txiav mus rau qhov xav tau loj thiab cov duab. Cov txheej txheem no yuav suav nrog shearing lossis sawing cov khoom, nyob ntawm seb qhov yuav tsum tau ua.
Kev tshuaj xyuas zaum kawg thiab Kev Tswj Xyuas Zoo:Thaum kawg, cov hlau txias txias tau dhau los ntawm kev tshuaj ntsuam xyuas kom ntseeg tau tias nws ua tau raws li cov qauv tsim nyog rau lub zog, thickness, thiab nto tiav.
Kev tu tsis tu ncua:Thawj kauj ruam hauv kev saib xyuas cov hlau txias txias yog kev tu ib txwm siv cov tshuaj ntxuav me me thiab dej. Qhov no yuav pab tshem tawm cov av, plua plav, thiab lwm yam teeb meem uas yuav ua rau muaj kev puas tsuaj rau cov hlau.
Kev tiv thaiv xeb:Cov hlau txias txias yog yooj yim rau xeb, thiab yog li ntawd, nws yog ib qho tseem ceeb los tiv thaiv xeb tsim los ntawm kev siv cov tshuaj tiv thaiv xeb los yog txheej tiv thaiv. Qhov no yuav pab tiv thaiv qhov chaw ntawm cov hlau los ntawm ya raws, uas tuaj yeem ua rau xeb tsim.
Lubrication:Lubrication yog lwm kauj ruam tseem ceeb hauv kev saib xyuas cov hlau txias. Qhov no suav nrog kev siv cov roj nplua nyeem zoo, uas yuav pab txo qis kev sib txhuam ntawm cov hlau, yog li txo qhov hnav thiab tsim kua muag.
Kev tshuaj xyuas:Kev tshuaj xyuas cov hlau tsis tu ncua yog qhov tseem ceeb txhawm rau txheeb xyuas cov cim ntawm kev puas tsuaj lossis kev puas tsuaj, uas tuaj yeem ua rau corrosion lossis lwm yam teeb meem. Qhov no yuav pab tiv thaiv kom tsis txhob raug nqi kho thiab hloov pauv hauv lub sijhawm ntev.
Kev ruaj ntseg zoo:Kev khaws cia ntawm cov hlau txias txias kuj tseem ceeb heev rau nws lub neej ntev. Qhov no suav nrog ua kom cov hlau nyob hauv qhov chaw qhuav, huv si, thiab qhov cua zoo, kom deb ntawm cov dej noo thiab lwm yam teeb meem ib puag ncig.
Ntxuav
Txhawm rau pib, av, roj, lossis xeb raug tshem tawm ntawm cov hlau saum npoo kom ntseeg tau tias cov hlau nws tus kheej tsis muaj cov khoom uas yuav tau txais nyob rau hauv txoj kev ntawm cov khoom kawg.
Rov ua dua
Smelt cov hlau nyoos nyob rau hauv lub cub tawg loj los ua kua hlau. Cov txheej txheem no rho tawm cov hlau los ntawm nws cov ore thiab ua kom yooj yim rau cov duab.
Rolling
Cia cov kua hlau kom txias me ntsis ua ntej pub nws los ntawm cov txheej txheem ntawm cov chais. Raws li cov rollers compress cov hlau, nws ua thinner thiab muaj zog.
Annealing
Tej zaum koj yuav xav tau anneal los yog kub-kho cov hlau los txhim kho nws cov ductility thiab txo nws cov hardness. Annealing txhim kho cov hlau cov qauv nplej, ua rau nws zoo ib yam thiab txo qhov kev pheej hmoo ntawm kev tawg lossis lwm yam tsis xws luag.
Ua tiav
Tom qab dov cov hlau mus rau qhov xav tau tuab, nws tuaj yeem ua tiav ntxiv. Qhov no pab txhim kho nws qhov chaw tiav.
Kev tshuaj xyuas
Xyuas cov khoom kawg rau qhov tsis xws luag thiab inconsistencies. Qhov no guarantees zoo tshaj plaws ua ntej cov hlau mus rau hauv ntau lawm.
Cov xim coated steel kauj yog lub teeb hauv qhov hnyav, zoo nkauj zoo nkauj, thiab muaj kev ua haujlwm zoo los tiv thaiv corrosion, thiab tuaj yeem ua tiav ncaj qha. Cov xim feem ntau muab faib ua grey, dej hiav txwv xiav, cib liab, thiab lwm yam Nws yog siv hauv kev tshaj tawm, kev tsim kho, kho kom zoo nkauj, khoom siv hauv tsev, khoom siv hluav taws xob, rooj tog kev lag luam thiab kev lag luam tsheb thauj mus los. Raws li ISO 9001, SGS certified tuam txhab, peb muaj peb lub Hoobkas npog 35000 square meters, pab ntau tshaj 500 tus neeg ua haujlwm. Muaj 30 cov kab ntau lawm, 500tons ib hnub ib kab, nrog rau txhua xyoo tso zis 5,400,000 tons. Nrog 20 xyoo ntawm kev tsim thiab xa tawm kev paub, peb tau ua haujlwm rau peb cov neeg siv khoom thiab cov haujlwm hauv South America, Southeast Asia, Central Asia, Middle East, Africa thiab North Europe lag luam.
Q: Puas yuav txias dov steel xeb?
Q: Puas yog txias-dov steel bendable?
Q: Puas yog txias-kuav los tiag steel muaj machinability zoo?
Q: Ntev npaum li cas cov hlau ua kom txias?
Q: Cov hlau twg muaj zog dua kub dov lossis txias dov?
Q: Ntev npaum li cas koj tuaj yeem tau txias dov hlau?
Q: Koj puas tuaj yeem welding txias dov steel?
Q: Dab tsi yog qhov txiav ceev rau txias dov steel?
Q: Puas yog txias dov steel kim?
Q: Vim li cas thiaj siv txias dov hlau?
Q: Koj puas tuaj yeem galvanized txias dov hlau?
Q: Koj ua li cas soften txias dov steel?
Q: Vim li cas ho txias dov steel kim dua?
Q: Dab tsi welding pas nrig yog siv rau txias dov hlau?
Q: Dab tsi yog 3 qhov zoo ntawm cov hlau txias txias?
Q: Puas yog txias dov steel muaj zog dua li cov hlau me me?
Q: Ua li cas koj harden txias dov hlau?
Q: Dab tsi temp ua txias dov steel yaj?
Q: Dab tsi yog qhov feem ntau cov khaub thuas dov steel?
Q: Dab tsi yog txias dov hlau tseem hu ua?
Raws li ib qho ntawm cov kws tshaj lij kev lag luam thiab cov muag khoom hauv Suav teb, peb tau tshwj xeeb los ntawm cov kev pabcuam zoo thiab cov nqi sib tw. Thov so assured mus yuav cov khoom zoo siab txias dov steel rau muag ntawm no los ntawm peb lub hoobkas. Tiv tauj peb rau pricelist thiab qauv dawb.
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