Yuav sim ntsuas cov nplaum ntawm preposeed galvanized steel?

Cia peb ua tiag tiag - tus xiav xiav los yog sleek metallic grey ntawm koj cov phiaj xwm steelized zoo li kev sib tw zoo li kev ua tsis zoo yog tsis yog qhov muag; Nws yog lub sijhawm zuam foob rau kev xeb thiab lav tau hais tias.} Yog li, koj yuav ntes cov gremlin noua ntejNws puas puas koj lub koob npe nrov thiab koj feem? Siv sia rau . peb nyob nraum tau dhia rau hauv lub ntiaj teb nplaum {} nws tsis yog zoo nkauj, tab sis nws yog qhov tseem ceeb.

Vim li cas npaj cov galvanized yog tus tsiaj nyaum peary 4

Koj tau txais txheej txheej ntawm no, Pal - Zinc, Pretricate (phosphate lossis chromate), Primer, ces Topcoat .Txhua lub interface yog lub peev xwm taw tes ntawm tsis ua hauj lwm .Galvanizing nws tus kheej muab rau koj tias kev fij zinc txheej .} txaus rau corrosion, tab sis hais tias slick zinc deg? Nws yogtsis yognyuaj rau cov xim pleev xim rau tas mus li . Cov khoom sib tsoo tsis zoo rau thaum lub ntiajteb ua kom zoo nkauj, tsis muaj kev cia siab, tsis vam kev cia siab.

Lub cuab yeej: tau qias neeg nrog cov kev xeem no

​Tsis nco cov twv txiaj ntsig .}}} ntawm no yog cov arsenal siv los ntawm cov khw uas mob siab txog qhov zoo:

1. Cov kab xev txo hwj chim xeem (ASTM D3359): Qhov "Ceev & Daj" Kos Duab "

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​Nws yog dab tsi​

Koj cov adhesion thawj teb . pheej yig, nrawm, thiab leej twg nyob hauv pem teb tuaj yeem ua nws (nrog kev cob qhia).

Li cas​

Koj noj ib daig ntawm cov kab xev tshwj xeeb-rhiab (feem ntau nrog cov nplaum adhesive zoo li permacel 99 lossis 3m # 898). Tom qab ntawd, koj rip nws li zoo li rub ib band-pab ... ntawm txhais tau tias, nrawm, ze {{} deg℃kaum ntse ntse ntse {}

DRAMA:Dab tsi nyob ntawm tus hlau? Dab tsi lo rau daim kab xev? Kev ntshai heev!

Koj tab tom nrhiav dab tsi

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Txoj kev (x-txiav):Koj tau cov txheej txheej rau hauv cov qauv sib tw (zoo li Tic-Tac-ntiv taw)dhautxhua txheej tso mus rau substrateua ntejthov ntaub nplaum .}} Tom qab Ripping, koj suav ntau npaum li cas me me me me flaked tawm ntawm tag nrho cov kab sib txuas rau tag nrho cov kab ke rau tag nrho cov kab ke

Txoj kev b (parallel txiav):Ob lub parallel tau hais txog 1-2 nti sib cais {}}}} Koj cov xim ntau npaum li cas ntawm cov kab?

​Ntsuam xyuas lub carnage (Astm nplai):

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5A/5B:​Zoo meej! Daim kab xev zoo nkaus li huv . tej zaum muaj kev tsaus muag puas pom? Tsis sib thooj. Xim nyob sab qis tso cia . kub lub hnub ci.

4A/4B:​Me me rau (<0.5mm) pulled at intersections. Usually acceptable. Side-eye the process.

3A/3B:​Cov nplaim me me (<1.5mm) along cuts/edges. Uh-oh. Alarm bells.

2A/2B:​Ci los yog cov ntaub qhwv cov pob tw raws txiav . "Peb muaj teeb meem, houston."

1A/1B:​Peets cov chaw loj sab nraum daim phiaj / txiav {{{} {1 secrap lub kauj, tua cov khoom siv rau kev xaiv {}}

Qhov zoo

Pheej Yig, nrawm, zoo rau cov chaw kuaj mob hauv pem teb lossis cov khoom siv los ua kom zoo nkauj (zoo li cov khoom siv hluav taws xob tsis zoo)}}}}.

Dab tuag

​Cov kev ntsuas xav tau kev cob qhia lub qhov muag . cuam tshuam los ntawm qhov nyuaj koj nias, ntaub nplaum, kab xev tshiab, thiab txheejkev ua siab loj! Nyiag xim yuav tawg yam tsis muajmuaj tseeb tiagpoob substrate adhesion, muab kev tsis zoo . tsis muaj tseebkom kim li ntawdrub tawm-tawm quab yuam ntsuas .

2. Lub rub tawm ntawm Rub (ASTM D4541 / ISO 4624): "Brute Force" tooj

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Nws yog dab tsi​

Nov yog qhov uas koj tau txais cov lej tiag - ib-xwmfab-nti (PSI) lossis Mank) lossis Mank) lossis Mank) {3 {{{}

Li cas​

Koj lo kom koj lo me me, tiaj-xaus txhuas los yog Steel Dollies (xav tias me me Hockey Pucks, feem ntau yog 0.5 "lossis 20mm dia)tiagTshwj xeeb, muaj zog epoxy adhesive .}}}}}}}}} {1}.

• Detaches los ntawm cov hlau substrate (substrate tsis ua hauj lwm -tsawg, txhais tau tias Adhesion tau zoo dua li lub hauv paus hlau!)
• Tsoo cohalivelynyob hauvCov txheej nws tus kheej (cohesive tsis ua hauj lwm - xim tsis muaj zog, adhesion tej zaum yuav zoo yog tias lub zog yog siab) {}}
• Detaches ntawm txheej txheej / substrate interface (adhesive ua tsis tiav - dab tsi peb ntshai) .
• Detaches cov kua nplaum los ntawm dolly (kua nplaum tsis raug - tsis raug cai xeem, sim dua nrog cov kua nplaum zoo dua / kho).

Qhov koj tau txais

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Ib qho tseebRub tawm lub zog rub tawm. Dab tsi yog qhov zoo? Nyob ntawm covdaim ntawv thov{{0 {{}} rau dav dav hlau hlau,​>1000 psi (7 MPA)Feem ntau txiav txim siabtsim nyog. ​​>1500 psi (10 MPa)Yog heev zoo .​< 500 PSI (3.5 MPa)​Cov teeb meem qw teeb meem .

Qhov zoo

Muab koj cov lej siv tawv, cov hom phiaj . Zoo rau kev sib piv cov txheej txheem sib txawv, pretreatment, lossis cov txheej txheem mob.}}qhov twgQhov tsis ua hauj lwm tau tshwm sim .

Dab tuag

Txoj kev ua haujlwm ntxiv . Xav tau cov khoom tshwj xeeb .} Xav tau cov neeg ua haujlwm ua haujlwmzoo kawg nkaus(Tsis muaj voids!) Thiab xyuas kom meej meej yog ua kom haum rau cov neeg ntshiab rub tawm {{npoo} chaw prep (tu, degreezeua ntej gluing) yog qhov tseem ceeb {. Cov kua nplaum siv lub sij hawm . tus nqi ntau.

3. Qhov kev xeem qiv (Astm d 4145 - tus "liab twm hawj": kev nyuaj siab rau impress

Nws yog dab tsi​

Tsawg Dua Hais Txog Cov Khoom Zoo, Ntau Ntxiv Txog Yuav Ua Li Cas Cov Txheej Txheemtxoj hau kev(suav nrog nws adhesion) tuav thaum steel hauv qab yog deformed . Cov khoom siv finerication, lossis vaj huam sib luag flexing hauv kev pabcuam .

Li cas

Lauj xibnas vaj huam sib luag ntawm cov coated steel {}} pose {}}}} {. cov txheej txheem tau nce zuj zus thiab compressedtawv.

Koj tab tom nrhiav dab tsi

Tom qab khoov, koj tshuaj xyuas tusnro sab(txheej txheem sab nraud) ntawm txoj hlua khi nyob rau hauv lub teeb zoo (tej zaum nrog 10x magnification) .Daim nplaum tsis ua hauj lwmyog tus cwj pwm los ntawm kev tawg, flaking,lossis tevnyob deblos ntawm substrate .Cohesive cracking (tsuas yog tawg, tsis muaj flaking) tej zaum yuav vim yog brittleness, tsis tas yuav ua phem adhesion . koj saib yuav ua li casntauflaking tshwm sim . tej tej zaum muaj nyob rau ntawm lub teev (e {}}

Qhov zoo​

Simulates muaj tiag-ntiaj teb kev ntxhov siab qhov twg adhesion ua tsis tiav Apparatus (cov ris tsho zoo tshaj plaws uas koj tau txais dai ntawm nws .

Dab tuag

Kev ntsuas ntsuas . brittle brittly txawm nrog zoo adhesion {} Tsis txhob muab cov tshuaj ntsuab ntshiab. heev rhiab rau txheejYooj taus,.

4.} Daim Ntawv Qhia Tawm Qauv (ASTM D2197 / Hardness Mem hluav Vapt): Tus "Scratch 'n

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Nws yog dab tsi

Ntsuas lub zog uas yuav tsum tau thawb ib lub vaj huam sib luag

Li cas

Koj mount lub vaj huam sib luag ntawm lub vaj huam sib luag txav tau yooj yim {} Lub cev hnyav dua) lossis lub zog tshwj xeeb tau rub tawm hauv qab qhov hnyav notawglossisDaim ntawv tawmnqes mus rau lub substrate yog kaw . qhov hnyav dua qhov hnyav uas yuav tsum tau ua rau tsis ua haujlwm, qhov zoo dua adksion / cohesion .

Qhov zoo

Muab ib tug lej lej (feem ntau yog nyob rau hauv Kg-Fort lossis Newtons) . Cohesion yog {}}}}}

Dab tuag

Tsawg dua qhov tshwj xeeb rau cov nplaum ntshiab ntawm cov hlau pleev xim ua ntej dua li cov kab xev nyuaj / swb} yuav tsum tau ceev faj thiab calibration {}}

Tshaj dhau qhov kev sim: Tsis txhob sim xwb - tiv thaiv!​

Kuaj cov khoom ua tsis tiavtom qabkev tsim khoom . Smart Sops AGCov hauv paus ua raukom tau txais cov qhab nia zoo nkauj

1.} Substrate Prep yog huab tais (70% ntawm kev ua tiav pib ntawm no)​

• Galvanize nplaim:Yuav tsum huv, hnav ris tsho, thiab ua kom raug overivated . roj? Zeb av? Ntiv tes? Adhesion killers .}}} wb ntxuav cov hlau los ntawm koj cov neeg xa khoom thiab khaws nws kom zoo.
• Pretreatment Chemistry:Nov yog lub ntsiab interface! Phosphate lossis Chromate Cov Txheej Txheem Hloov Siab hloov pauv tsis kho kom zoo nkauj .}} Lawv siv tshuaj rau qhov zincthiabTsim cov micro-nco saum npoo rau cov xim kom lob mus rau kev kho tshuab (temp, pH, kuaj xyuas da dej (mg / ft²) tsis tu ncua.Cov kauj ruam no tsis yog sib ceg .
• Yaug & qhuav:Tsis zoo rinsing nplooj pretreatic salts lossis tshuaj lom neeg uas ua rau kev ziab zoo {{1 1}} Flash xeb lossis pleev xim {2 2} tseem ceeb tswj cov ntsiab lus!

2. txheej ntawv thov tswj​

• Kev xaiv Primer:Tsis yog txhua qhov primers hlub zinc! Siv cov uas tau tsim tshwj xeeb rau galvanized steel nrog ua pov thawj adhesion txhawb nqa .
• Kho cov profile:Undercured=muag, tsis muaj zog {{1} {{1} {{2} (peak hlau temp!) {.
• Film Thickness:Tuab heev? Cures sib txawv, tsim kev nyuaj siab tsim, nquag mus tawg / adhesion poob {}}} heev yuag? Tsis muaj cohesion {{1} Nyob hauv Goldilocks cheeb tsam ib tus Txheej Txheej Tech cov ntaub ntawv.

3. huab cua ib puag ncig

• CUA KUB:Hmoov av hauv huab cua? Tsaws ntawm cov xim ntub? Tsim cov pob hluav taws uas tsis muaj zog nyob qhov twg adhesion tuaj yeem poob tom qab . Khaws koj lub rooj muag khoom txheej kub .
• Vaum tswj:High humidity thaum txheej / kev kho mob tuaj yeem ua rau microscopic blushing lossis dej nkag ntawm cuam tshuam ntawm kev cuam tshuam, tsis muaj zog Bonds {}}

Lub takeway: nws yog ib qho system, tsis muaj rho npe

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Kuaj cov nplaum tsis yog hais txog kev sim ua ib qho kev sim ua tej yam yees siv thiab thov kom nkag siab txog cov tsiaj nyaum uas koj tau ua nrog (Prepainted galvanized steel yog fussy!), Siv covTxoj cai sib xyawntawm kev ntsuam xyuas rau koj qhov xwm txheej (cov kab xev ceev ceev rau cov phiaj xwm txhua hnub, rub tawm tag nrho cov txheej txheem dang lossis qhov tob tob rau lub qhov kawg tawm .

Nres tsis kam mus rau teeling xim {} pib sim ntse thiab ua tsaug rau koj txoj kev xav tau tam sim no thiab tau txais 5A cov kab xev xeem ntawv!

Tiv tauj peb kom tau txais kev daws teeb meem