Yog, 7018 vuam pas nrig tau tuaj yeem xaiv tau kiag li steel me, thiab lawv feem ntau yog qhov kev xaiv zoo tshaj plaws rau txoj haujlwm- Nws tshwj xeeb tshaj yog cov ua ntej.Cov hlau me me (qhov qis - cov hlau carbon hlau nrog ~ 0.05-0.25% carded nrog 7018, ua tsaug rau tus pas nrig, thiab muaj peev xwm tsim cov pob qij txha huv si, ruaj khov. Hauv qab no yog cov ncauj lus kom ntxaws txog vim li cas thiab yuav ua li cas 7018 ua haujlwm rau cov hlau me me, nrog rau cov kev txiav txim siab tseem ceeb.
Vim li cas 7018 yog zoo -} haum rau cov hlau me
7018 yog qhov qis {{1} hydrogen, filling aws ("70" Nws cov khoom haum zoo kawg nkaus nrog cov hlau me me:
Compatibility nrog cov hlau sib xyaw ua ke
Cov hlau me muaj cov roj carbon me me thiab muaj cov khoom siv sib txuas me me, ua rau cov tub rog sib xyaw ua ke nrog cov hlau me me (ua kom muaj kev sib tw ua ke) Tsis muaj kev pheej hmoo ntawm Galvanic corrosion lossis alloy miskas, uas tuaj yeem tshwm sim thaum vuam sib tshuam.
Lub zog siab rau cov txheej txheem lossis thauj khoom - bearing Welds
Me me hlau nws tus kheej muaj tensile lub zog ntawm ~ 30,000-60,000 psi {}} '}'} '}'} '}'} '}'} '}'} '}'} 'muaj zog dua li cov hlau me me hlau hauv paus{{0- Qhov kev ua haujlwm tseem ceeb rau cov phiaj xwm kev teeb tsa (piv txwv, cov tshuab weld yuav tsum tau tiv thaiv kev ntxhov siab yam tsis muaj kev poob siab. Qhov "Overmatch" kom ntseeg tau tias qhov sib koom ua ke yuav tsis yog qhov tsis muaj zog.
Tsawg - hydrogen txheej tiv thaiv tawg
Cov hlau me me yog feem ntau tiv taus weld cracking, tab sis cov teeb meem tuaj yeem tsim cov roj av (los ntawm cov roj av (zoo li roj av) uas tiv thaiv weld Qhov no yog qhov tshwj xeeb tshaj yog qhov tshwj xeeb rau cov steel me me hlau lossis welds uas yuav muaj kev pheej hmoo ntawm "hydrogen {{}} inducts tawg."
Huv si, zoo nkauj welds
Cov hmoov hlau hauv 7018 txoj kev txiav yeeb tshuaj Qhov no zoo tagnrho rau ob qho haujlwm (piv txwv li, cov qauv kev txhawb nqa) thiab aesthetic (piv txwv li, pom hlau hlau).
Thaum Twg Yuav Xaiv 7018 rau Mild Steel Vuam
7018 Tsis yog tus pas nrig tsuas rau cov hlau me (lwm tus nyiam 6010, 6011, 6011, lossis 6013 ua haujlwm ib yam nkaus), tab sis nws ci rau hauv cov xwm txheej tshwj xeeb:
Cov qauv lossis thauj khoom - bearing prests: Yog tias qhov hlau me me yuav nqa qhov hnyav (piv txwv li, tus ncej hlau, lub tshuab trailer, lossis lub zog siab ua kom cov weld tuaj yeem lis lub nra.
Tuab me hlau (1/4 nti lossis tuab dua): 7018 Cov hmoov hlau hmoov tsim tsim cov cua sov ntxiv, tso cai tob rau nkag mus rau cov khoom tuab. Qhov no zam "Lap txias" (tsis tiav fusion) uas tuaj yeem ua pob qij txha tsis muaj zog hauv ntu hnyav.
Welds xav tau tsawg tshaj tawm - weld ua hauj lwm: 7018 tsim tawm tsawg dua li lub ntsej muag thiab cov leeg nqus pob yas dua li cov pas nrig xws li 6011, txo qhov xav tau kev sib tsoo lossis tu tom qab.
Cov phiaj xwm uas tawg yeej muaj kev pheej hmoo yog qhov kev txhawj xeeb: Piv txwv li, yog tias cov hlau me me yog welded hauv cov huab cua txias lossis yuav raug rau cov kev ntxhov siab, 7018's qes} i
Yuav ua li cas weld me me hlau nrog 7018: Cov lus qhia tseem ceeb
Kom tau txais cov txiaj ntsig zoo tshaj plaws nrog 7018 ntawm cov hlau me me, ua raws cov kev coj ua no:
Npaj cov hlau me me hlau
Ntxuav cov hlau kom tshem tawm xeb, roj, pleev xim, lossis av {{{{{}}} hydrogen nyob rau hauv weld thiab ua porosity lossis tawg. Siv cov hlau txhuam, grinder, lossis cov kuab tshuaj (piv txwv li, acetone) kom ntxuav tsawg kawg 1 nti ntawm thaj chaw ib ncig ntawm Weld sib koom tes.
Khw thiab lis 7018 kom zoo
7018 qhov qes {{1} hydrogen txheej nqus dej yooj yim, uas reethroduces hydrogen thiab ruins nws anti- cracking cov txiaj ntsig. Khw Muag Khoom Tsis Siv Rods nyob rau hauv ib qho cub rod ntawm 250-300℃F (120-150 degree) kom lawv qhuav. Yog tias cov pas nrig nqus dej noo (piv txwv li, sab laug tawm thaum hmo ntuj), rov qab lawv hauv qhov cub ntawm 500-600℃f (260-315 qib) rau 1-2 teev ua ntej siv.
Siv txoj cai polarity thiab amperage
7018 ua haujlwm zoo tshaj plaws nrogDC Rov qab polarity (DCRP): Lub electrode yog qhov zoo, thiab kev ua haujlwm tsis zoo. Qhov no ua kom lub arc, ua kom tiav cov txheej me me melting, thiab maximizes nkag mus nkag. Rau kev amperage, ua raws cov lus qhia dav dav raws tus pas nrig loj:
1/8 nti pas nrig: 120-180 amps
5/32 nti pas nrig: 160-220 amps
3/16 nti pas nrig: 200-280 amps
Kho raws li cov ntaub ntawv tuab (tuab dua hlau xav tau siab dua amps) thiab arc tus cwj pwm (ib qho kev ua haujlwm ruaj khov (muaj kev ntxhov siab "arc yog qhov zoo tagnrho).
Tswj kev ncig ua si nrawm thiab arc ntev
Txav mus rau tus pas nrig ntawm kev ua kom ruaj khov kom tsis txhob muaj qhov tsis sib xws (nrawm dhau) lossis qeeb dhau). Khaws lub arc luv (1 / 8-3 / 16 nti) kom tswj cov pa thaiv cov roj los ntawm cov txheej thiab thaiv cov kev paug ntawm cov cua hauv atmosphric.
Thaum 7018 tej zaum yuav tsis yog qhov kev xaiv zoo tshaj plaws rau cov hlau me
Thaum 7018 tau zoo heev rau ntau txoj haujlwm hlau me, nws tsis yog ib txwm tsim nyog:
Nyias nyias hlau (<1/8 inch): 7018 lub tshav kub siab tuaj yeem hlawv los ntawm cov khoom siv nyias nyias. Cov pas nrig zoo li 6013 (cov cua sov qis dua, yooj yim rau kev tswj hwm) yog qhov zoo nyob ntawm no.
DIY lossis cov haujlwm uas muaj cov cuab yeej siv: 7018 yuav tsum muaj DC Welder (lossis AC nrog cov pas nrig tshwj xeeb) thiab kev cia khoom kom raug (qhov cub ci). Yog tias koj tsuas muaj cov actective act welder, 6011 (AC - tus phooj ywg) yooj yim dua.
Tus nqi -} rhiab txoj haujlwm: 7018 yog qhov nqi tshaj 6011 lossis 6013. Rau tsis-, lub rooj zaum ua haujlwm zoo.
Kev Txiav Txim Siab Kawg
7018 tsis yog tsuas yog muaj peev xwm ntawm vuam me hlau {}} nws yog ib qho ntawm cov kev xaiv zoo tshaj plaws rau kev tsim muaj zog, thiab tshaj lij}}} zoo welds rau cov khoom no. Nws cov kev sib raug zoo nrog cov hlau me me qhov sib xyaw, lub zog siab, thiab qis} hydrogen zog ua kom nws zoo tagnrho rau cov kabmob, lossis cov phiaj xwm me me. Thaum nws yuav tau overkill rau nyias lossis ua haujlwm xws li, thaum muaj zog thiab kev ntseeg tau teeb meem, 7018 yog qhov kev xaiv zoo.
