S235J2W Corten Steel (EN 10025-5) yog dav siv nyob rau hauv architectural facades, precision railings, thiab me me structural Cheebtsam -ntau yam uas cia siab rau nyias - cov ntawv ntsuas (tsawg dua los yog sib npaug li 6 hli). Rau cov ntaub ntawv nyias no, kev tsim cov txheej txheem yuav tsum sib npaug ductility, tiv thaiv saum npoo, thiab tuav qis -kub toughness (-20℃qhov yuav tsum tau muaj). Cov txheej txheem tsim dab tsi tsim nyog rau S235J2W, thiab kev ceev faj tshwj xeeb siv rau cov ntawv nyias nyias? Cov ntsiab lus tseem ceeb yog qhov tseeb:Nyias-gauge S235J2W excels nrog nias braking, TIG vuam- pab tsim, thiab stamping; qhov tseem ceeb yog nyob rau hauv kev tswj kev sib sau ceev, tiv thaiv nto, thiab tsis txhob muaj kev ntxhov siab ntau dhau. Hauv qab no yog ib qho yooj yim, kev txiav txim siab tawg.
1. Cov Txheej Txheem Txheej Txheem rau Nyias -Gauge S235J2W (tsawg dua lossis sib npaug li 6 hli)
S235J2W cov ntsiab lus tsis tshua muaj carbon (tsawg dua lossis sib npaug li 0.18%) thiab ua kom zoo tshaj plaws ntawm cov khoom sib xyaw ua kom zoo ductility, ua rau nws zoo tagnrho rau cov txheej txheem hauv qab no kom haum rau nyias - ntsuas kev siv:
Nias Braking (Bending / Folding)
Daim ntawv thov Scenario: Feem ntau rau nyias -gauge S235J2W- siv rau kev tsim vaj tsev facade profiles, railing thav duab, thiab cov khoom siv me me.
Nyias -Gauge Special Points: ① Yam tsawg kawg nkaus dabtsi yog khoov vojvoog: Ua raws EN 10025-5- puab vojvoog (R) Ntau dua lossis sib npaug rau 1 × daim ntawv tuab (t) rau t Tsawg dua lossis sib npaug li 3 hli, R Ntau dua lossis sib npaug rau 1.2 × t rau 3＜t Tsawg dua los yog sib npaug rau qhov tawg (6 hli); ② Kev tiv thaiv nto: Txuas PE tiv thaiv zaj duab xis los yog roj hmab pads kom tuag kom tsis txhob khawb (tseem ceeb rau cov ntawv nyias, vim khawb tau yooj yim cuam tshuam cov xeb txheej txheej); ③ Txias txoj kev nyiam: ambient kub (10-30 degree) yog txaus-tsis muaj preheating xav tau, uas tiv thaiv thermal puas rau qis-kub toughness.
TIG Vuam-Assisted forming
Daim ntawv thov Scenario: Rau txoj kev nyias nyias - ntsuas cov khoom (piv txwv li, nkhaus hniav vaj huam sib luag, kev cai- zoo li facade ntsiab) uas nyuaj rau tsim hauv ib kauj ruam.
Nyias -Gauge Special Points: ① Cov khoom siv hluav taws xob tsawg: Siv TIG vuam nrog me me tam sim no (80-120A) kom txo cov cua sov- thaj chaw cuam tshuam (HAZ) loj- tiv thaiv cov nplej coarsening thiab poob ntawm -20℃toughness; ② Kev sib sau ua ke-vuam: Ua ntu me me ua ntej, tom qab ntawd txuas lawv ntxiv kom tsis txhob muaj kev ntxhov siab ntau dhau hauv cov ntawv nyias; ③ Kev kho tom qab-weld: Tsis muaj kev ntxhov siab rau kev xav tau rau cov ntawv nyias (tsawg dua lossis sib npaug li 6 hli) kom tsis txhob muaj kev sib tsoo.
Stamping & Deep Drawing
Daim ntawv thov Scenario: Haum rau ultra-nyias S235J2W (tsawg dua los yog sib npaug li 3 hli) los tsim cov khoom precision-xws li, cov khoom siv kho kom zoo nkauj, huab cua me me- cov khoom sib txuas.
Nyias -Gauge Special Points: ① Tswj stamping ceev: 2-5m / min kom tsis txhob muaj cov khoom tawg (cov ntawv nyias nyias muaj lub zog tensile qis dua); ② Lubrication: Siv dej-raws li graphite lubricants (yuav tshem tau yooj yim) kom txo tau tuag kev sib txhuam thiab tiv thaiv nto abrasion; ③ Tuag tshem tawm: Khaws 105-110% ntawm daim ntawv tuab kom tsis txhob muaj ntau dhau los yog ncab.
2. Lwm cov txheej txheem tsim nyog (Rau nyias- Ntsuas ntsuas nruab nrab)
Rau S235J2W nplooj ntawv nruab nrab ntawm 6-12mm (thin-medium gauge), cov txheej txheem hauv qab no kuj tseem siv tau, nrog rau kev hloov kho thickness:
Txias Rolling & Roll Bending: Rau cov khoom nkhaus (piv txwv li, me - txoj kab uas hla zoo nkauj, nkhaus railings). Txias dov yog tsim rau Tsawg dua los yog sib npaug rau 10mm; siv qeeb qeeb (2-3m / min) kom tsis txhob tawv.
MIG/MAG Vuam-Assisted forming: Rau qhov loj dua nyias- nruab nrab ntsuas cov khoom (piv txwv li, 8-12 hli facade ncej). Siv tsawg spatter ER70S-GNiCu hlau los xyuas kom meej weld zoo thiab huab cua tsis kam.
3. Kev ceev faj tseem ceeb rau nyias -Gauge S235J2W Forming
Tsis txhob tsim ntawm qhov kub qis dua 0℃: Cov ntawv nyias nyias yuav ua rau tawg yooj yim dua vim lawv cov ntoo khaub lig me me -section, txawm tias S235J2W muaj -20℃toughness.
Kev tiv thaiv saum npoo nruj: Tsis txhob siv cov tuag tsis muaj coated- khawb ntawm cov nplooj nyias nyias yuav ua rau muaj kev xeb hauv cheeb tsam, vim tias cov txheej tiv thaiv xeb nyuaj dua los ua kom tsis sib xws.
Tsis txhob dhau- daim ntawv: Rov kho dua lossis kev ncab ntau dhau yuav txo qis - qhov kub thiab txias - lo rau ib qho - lub sij hawm tsim qhov ua tau.
Tom qab-kev ua haujlwm tu: Tshem tawm cov roj nplua nyeem lossis tiv thaiv- cov roj xeb nrog cov tshuaj ntxuav tsis huv (tsis txhob muaj cov kua qaub / alkali) kom ntseeg tau tias cov xeb txheej txheej ib txwm muaj.
Hauv cov ntsiab lus, nyias- ntsuas S235J2W Corten Steel yog qhov zoo tshaj plaws rau kev nias braking, TIG vuam- pab tsim, thiab stamping. Tswj kev sib sau ceev, tiv thaiv qhov chaw, thiab ua raws li cov thickness- cov kev txwv tshwj xeeb yog qhov tseem ceeb rau kev ua tiav. Rau me ntsis thicker nyias - nruab nrab ntsuas, txias dov thiab MIG vuam- pab txoj kev sib sau kuj siv tau. Ua raws li cov lus qhia no ua kom cov khoom khaws cia nws cov huab cua tsis kam thiab qis -kub toughness, ua tau raws li qhov xav tau ntawm precision architectural thiab structural applications.
