Dab tsi ua rau lub ntsej muag daj
Dawb tooj liab yog tooj liab -nickel alloy, thiab nws cov xim zoo nkauj nyob ntawm qhov chaw huv. Yellowing tshwm thaum qhov chaw hloov pauv, thiab peb lub tshuab suav nrog yuav luag txhua kis.
Oxidation yog thawj. Tawm mus rau huab cua, tshwj xeeb tshaj yog nyob rau hauv high humidity, tooj liab thiab npib tsib xee nyob rau saum npoo reacts nrog oxygen thiab tsim ib tug nyias oxide zaj duab xis. Cov zaj duab xis thickens nrog lub sij hawm thiab hloov cov xim reflected mus rau daj thiab ces xim av. Qhov kub siab ua kom nrawm cov tshuaj tiv thaiv, yog li cov khoom khaws cia ze ntawm qhov chaw tshav kub lossis ziab ntawm qhov kub thiab txias ntau dhau sai sai.
Corrosion yog qhov thib ob. Kev sib cuag nrog cov kua qaub, alkalis lossis ntsev daws tawm tsam qhov chaw thiab tsim cov khoom siv xeb xim, thiab cov tshuaj chloride uas muaj ib puag ncig yog qhov hnyav tshaj plaws rau tooj liab -nickel. Qhov twg cupronickel kov cov hlau tsis sib xws nyob rau hauv qhov muaj dej noo, qhov sib txawv muaj peev xwm tsav electrochemical corrosion uas concentrates ntawm qhov chaw tiv tauj thiab qhia tau tias yog xim daj rau xim av.
Kev kis kab mob yog qhov thib peb. Plua plav, roj, polishing compound residue thiab tuav cov cim tuav cov dej noo thiab ntsev tiv thaiv cov hlau, thiab cov ntiv tes tshwj xeeb yog kev puas tsuaj vim hws muaj chloride. Nyob rau hauv qhov chaw, cov deposits txhawb oxidation thiab corrosion uas ua raws li.
Cov Alloys koom nrog thiab lawv cov qauv
| Lub npe | Kev tsom xam | Cov qauv khoom |
|---|---|---|
| Zn15-20 | txog 15% Ni, 20% Zn, tshuav Cu | GB / T 2059 kab |
| BFe10-1-1 / C70600 | 9 - 11% Ni, 1.0 - 1.8% Fe, Mn 1.0 max | ASTM B122, ASTM B466, ASTM B111 |
| BFe30-1-1 / C71500 | 29 - 33% Ni, 0.4 - 1.0% Fe | ASTM B122, ASTM B466, ASTM B111 |
| BMn40-1-5 | txog 40% Ni nrog manganese ntxiv | GB / T 2059 kab |
Cov tooj liab 90/10 thiab 70/30-nickel alloys tiv taus dej hiav txwv zoo dua li cov tooj liab dawb lossis tooj dag vim tias cov npib tsib xee ruaj khov rau cov yeeb yaj kiab tiv thaiv, thiab cov hlau me me ntxiv hauv qib 90/10 ntxiv txhim kho cov dej hiav txwv ntws. Kev tsim qauv ib txwm txwv tsis pub khiav ceev ntawm seawater txias raj mus rau ib ncig ntawm 1.5 mus rau 2.5 m / s nyob ntawm seb cov alloy thiab cov ntsiab lus sulfide ntawm cov dej, vim hais tias ntau tshaj tawm erodes zaj duab xis uas tiv thaiv cov hlau.
Cov kauj ruam tu thiab kho dua tshiab
Ntxuav qhov ua ntej nrog dej sov thiab cov tshuaj ntxuav tes me me, thiab tshem tawm tag nrho cov roj ua ntej cov kauj ruam abrasive, kom cov grit tsis rubbed rau saum npoo.
Siv cov ntawv zoo li ntawm 2000 grit los yog finer rau hauv cheeb tsam staining, ua hauj lwm nyob rau hauv ib qho kev taw qhia zoo ib yam es tsis yog nyob rau hauv lub voj voog, uas ua rau lub kos qauv uniform.
Ua kom tiav nrog ib daim ntaub mos muag thiab lub teeb polishing muab tshuaj txhuam kom rov qab ci, tom qab ntawd so txhua qhov chaw ntawm cov khoom seem.
Rau kev hloov pauv dav dav thoob plaws thaj chaw loj, cov tshuaj organic me me xws li dilute citric acid tshem tawm cov oxide zaj duab xis sai; muaj zog ntxhia acids raug zam vim lawv tawm tsam cov nickel nplua nuj theem.
Yaug nrog dej deionised thiab qhuav tam sim ntawd nrog huab cua sov los yog ib daim ntaub dawb lint, txij li cov dej tshuav nyob rau hauv qhov chaw restarts cov zaj duab xis loj hlob.
Kov cov khoom tiav nrog cov hnab looj tes huv si; cov ntiv tes sab laug rau ntawm qhov chaw tshiab polished etch rau hauv nws nyob rau hauv cov hnub hauv huab cua ntub.
Tiv thaiv thaum khaws cia thiab siv
Freshly ntxuav cupronickel yog passivated los ntawm ib tug luv luv immersion nyob rau hauv ib tug me ntsis oxidising tov los yog los ntawm kev tswj cov huab cua kom ib tug nyias, ruaj khov thiab niaj hnub zaj duab xis hloov lub irregular ib, uas slows kev hloov xim ntxiv. Kev khaws cia yog qhov tseem ceeb ntawm kev tswj hwm: cov khoom raug khaws cia qhuav, sab hauv tsev thiab hauv cov ntim ntim nrog cov desiccant lossis los tiv thaiv - daim ntawv tarnish, thiab lawv yeej tsis khaws cia rau hauv cov khoom siv hlau, txhuas lossis zinc.
Qhov twg cov tsos mob yuav tsum nyob twj ywm kaj lug rau cov neeg siv khoom, ib tug ntshiab organic lacquer yuav siv tau nyob rau hauv ib tug huv passivated nto, tab sis lub txheej yuav tsum tau ua kom tiav, vim hais tias ib nrab lub tsho tiv no ib nrab ntawm cov aeration hlwb thiab concentrated staining ntawm ntug. Rau qhov chaw uas yuav raug soldered los yog welded, tsis muaj txheej yog thov thiab lub ci ntsa iab yog tiv thaiv los ntawm ntim ib leeg.
Kev Tswj Xyuas Zoo ntawm Mill thiab Kev Txiav Txim Siab Kom Zam Txim
Cov khoom xa tuaj thiab lub raj raug tshuaj xyuas rau saum npoo, thiab cov khoom tiav raug kuaj xyuas hauv qab lub teeb sib xws rau xim sib xws ua ntej ntim. Cov coils thiab strips yog interleaved thiab qhwv kom kev thauj mus los tsis ua rau cov cim fretting, thiab daim ntawv pov thawj sau cov hlau alloy, temper, qhov ntev thiab cov txiaj ntsig ntawm cov kev sim tshuab.
Qhov yuam kev tshaj plaws yog kho yellowing raws li qhov tsis xws luag thiab tsis kam lees cov khoom uas yog tshuaj lom neeg. Oxidation thiab kis kab mob yog thim rov qab, thiab cov khoom uas zoo li npub hauv lub tsev khaws khoom ntub dej ua tau raws nraim li tau teev tseg thaum ntxuav. Qhov kev ua yuam kev tsis sib xws yog polishing ib feem uas tseem greasy, uas tsav cov kab mob sib kis mus rau hauv qhov chaw thiab ua rau lub mottled tiav uas tsis muaj polishing ntxiv yuav raug kho.
Cov lus nug nquag
Q: Puas yog yellowing yog ib qho cim ntawm cov hlau tsis raug?
A: Tsis yog. Nws yog ib qho kev mob tshwm sim los ntawm oxidation, corrosion los yog paug, thiab cov khoom siv hauv qab tuav nws cov lus teev tseg thiab cov khoom.
Q: Kuv yuav ua li cas thiaj li tshem tau lub teeb daj hauv tsev lossis hauv chav ua haujlwm?
A: Ntxuav nrog xab npum me me, txhuam nrog 2000 grit ntawv los yog finer nyob rau hauv ib qho kev taw qhia, tag nrog ib tug mos ntaub thiab muab tshuaj txhuam, ces yaug nrog dej deionised thiab qhuav.
Q: Vim li cas cupronickel stain qhov twg lwm cov hlau kov nws?
A: Cov dej noo ntxiv rau qhov sib txawv ntawm ob lub hlau tsav galvanic corrosion. Insulating qhov kev sib cuag los yog cais cov khoom tiv thaiv nws.
Q: Lub lacquer puas yuav ua kom lub ntsej muag ci?
A: Lub lacquer ua tiav tag nrho ntawm qhov chaw huv huv yuav, tab sis qhov sib txawv hauv cov txheej txheem tseem ceeb staining ntawm nws ntug, yog li lub tsho tiv no yuav tsum tsis tu ncua.
Q: Yuav ua li cas cupronickel khaws cia ua ntej xa khoom?
A: Qhuav, sab hauv tsev, nyob rau hauv ntim ntim nrog desiccant los yog anti- ntawv tarnish, thiab tsis txhob kov nrog hlau, txhuas los yog zinc.
