Chrome plating ntawm qhov chaw tsheb hauv tsev (thev naus laus zis + thev naus laus zis)

Yuav luag txhua txhua tus neeg tsav tsheb sai lossis tom qab nug cov lus nug ntawm kev hloov pauv ntawm nws lub tsheb. Qee tus nqa tawm cov kev kho nyuaj los txhim kho ntawm lub tsheb decoctions los yog ua koj tus kheej thauj mus los hauv cov qauv stents... Lwm tus taug txoj kev ntawm tsawg kawg tsis kam - lawv dai lub tsheb nrog ntau daim nplaum (daim nplaum foob pob kuj tseem piav qhia nyias nyob nyias).

Cia peb tham txog lwm lub sijhawm los hloov qhov style ntawm koj lub tsheb, tab sis hom kev siv no tau siv sijhawm ntau thiab ua ntau dua. Qhov no yog qhov chrome plating ntawm cov ntsiab hlau ntawm lub tsheb.

Dab tsi yog chrome plating rau?

Lub ci ci chrome tas ib txwm ntes cov xim ntawm passers-by. Txawm tias nondescript tsheb, tom qab tau dai kom zoo nkauj nrog cov nyiaj ib feem, yuav siv sij hawm ntawm cov qauv tsim qub. Tsis tas li ntawd, nrog kev pab ntawm cov ntsiab, koj tuaj yeem hais txog lub peculiarity ntawm lub cev ua tiav, thiab tiv thaiv lawv los ntawm kev txhoj puab heev ntawm noo noo.

Tab sis dhau ntawm cov tswv yim tsim, chrome plating kuj muaj qhov ua tau. Qhov kev kho mob nrog cov tshuaj tshwj xeeb tau txais kev tiv thaiv zoo tiv thaiv txheej txheem uas tiv thaiv kev tsim xeb. Lub chrome-plated nto tau yooj yim los tswj, vim nws hloov tawm mus rau qhov ci, thiab daim iav nyhuv yuav tam sim ntawd qhia koj qhov twg tshem cov av.

Hauv txhua lub tsheb koj tuaj yeem pom yam tsawg kawg ib daim, ua hauv hom no. Txawm li cas los xij, qee tus neeg tsav tsheb nrhiav nthuav qhia lawv tus kheej, thiab tsis txaus siab nrog lub Hoobkas kev teeb tsa ntawm lawv cov tsheb. Muaj qee kis, txheej txheej yog siv rau qee qhov uas tau xeb, tab sis kev siv tshuab lawv tseem tuaj yeem siv hauv tsheb. Tom qab ua tiav, xws li cov khoom seem yuav zoo li tshiab.

Ua ntej xav txog tag nrho cov txheej txheem thev naus laus zis, nws tsim nyog them sai sai rau qhov tseeb tias qhov no yog kev siv zog thiab cov txheej txheem txaus ntshai. Cov hlau yog kho nrog chromium ions. Rau qhov no, tshuaj lom neeg ua rau muaj kev mob nkeeg yog siv, xws li cov kua qaub. Chrome plating muaj nrog cov nyhuv ntawm hluav taws xob nyob rau saum npoo yuav tsum tau kho, yog li neeg feem coob nyiam kom muaj qhov haujlwm no ua los ntawm cov kws tshwj xeeb (piv txwv, yog tias muaj cov nroj tsuag nyob ze nrog cov khw muag khoom electroplating). Tab sis rau cov neeg nyiam xuas tes ua, peb yuav txiav txim siab tag nrho cov txheej txheem hauv qib.

DIY cov cuab yeej thiab cov ntaub ntawv rau chrome plating

Nov yog qhov koj yuav tsum tau npaj rau cov txheej txheem kom ua tiav:

• Cov thawv ntim khoom. Nws tsis tuaj yeem yog hlau, tab sis nws yog qhov tsim nyog tias lub thawv ntim tuaj yeem tiv taus qhov kub siab. Qhov loj yuav tsum sib phim nrog qhov ntev ntawm qhov workpiece. Hauv cov khw muag hluav taws xob hauv cov chaw tsim khoom ntawm cov chaw tsim khoom tsheb, cov khoom ua haujlwm qis qis rau hauv chav da dej loj uas muaj cov tshuaj tshwj xeeb uas muaj cov electrodes txuas nrog hluav taws xob network. Nyob hauv tsev, nws tsis yooj yim kom rov ua cov txheej txheem zoo li no, feem ntau feem ntau cov no yog cov ntim me me hauv qhov uas cov khoom loj dhau los ua.
• Ib qho cuab yeej uas tso cai rau koj kom sov cov roj ntsha. Ntxiv mus, nws yuav tsum tsis muaj kev cuam tshuam rau cov kua qaub.
• Tus pas ntsuas kub nrog qhov ntsuas tsawg kawg yog 100 degrees.
• 12-volt rectifier muaj peev xwm xa 50 A.
• Tus qauv uas ib feem yuav raug rho tawm. Lub caij yuav tsum tsis txhob pw rau hauv qab ntawm lub ntim, vim hais tias thaum lub taw tes ntawm kev sib cuag nws yuav tsis muaj txheej txheem txaus - lub txheej yuav yog li tsis sib xws.
• Lub cathode (qhov no, nws yuav yog qhov haujlwm) thiab lub anode uas cov xov hlau yuav txuas nrog.

Qhov no yog li cas txoj kev teeb tsa hauv tsev galvanic yuav zoo li ntawm kwv yees li ntawm

Chromium plating cog tsim

Ntawm no yog yuav ua li cas thiaj ua lub tshuab chrome plating:

• Lub thawv ntim uas cov txheej txheem yuav tshwm sim (piv txwv li, peb-lub khob iav lub hwj) tau muab tso rau hauv lub thawv tiv thaiv kua qaub.
• Lub thawv plywood - peb yuav tso tag nrho lub taub ntim rau hauv. Nws yog ib qho tseem ceeb uas lub npov no loj dua li qhov muaj peev xwm yog li cov xuab zeb, iav ntaub plaub lossis cov tsiaj pob zeb hauv av tuaj yeem muab nchuav ntawm lawv cov phab ntsa. Qhov no yuav tsim kom muaj thermos cov nyhuv, uas yuav muab cov tshuaj tiv thaiv zoo dua, thiab cov electrolyte yuav tsis txias sai.
• Cov cua kub cua sov tuaj yeem siv los ua cua sov.
• Tus pas ntsuas kub los tswj cov ntsuas kub.
• Cov ntim yuav tsum muab ntim kaw ntom nti. Txhawm rau ua qhov no, siv ntoo lossis plywood uas tiv taus ya raws (kom nws tsis deform thaum kev ua haujlwm).
• Tus nqaim lossis cov ntawv qhia tawm txuas nrog rau qhov tsis zoo ntawm lub zog txuas (qhov no yuav yog cathode). Cov anode (ib tus pas nrig txuas nrog lub davhlau ya nyob twg zoo ntawm lub zog muab hluav taws xob) yuav muab raus rau hauv cov tshuaj electrolyte.
• Chav tsev raug tshem tawm tuaj yeem ua tau raws li txoj haujlwm ywj pheej. Qhov loj tshaj plaws yog tias ib feem tsis pw rau hauv qab ntawm lub poom (lossis lwm lub thawv tsim nyog), tab sis yog nyob rau hauv kev sib cuag nrog kev daws ntawm txhua sab.

Yuav tsum tau muab lub zog siv

Raws li qhov kev xav tau hluav taws xob, nws yuav tsum tau muab hluav taws xob hloov tas li. Hauv nws, cov hluav taws xob tsim tawm yuav tsum tau tswj hwm. Cov kev daws teeb meem uas yooj yim tshaj plaws yuav yog cov rheostat siv tau yooj yim, nrog kev pab ntawm tus nqi no yuav hloov pauv.

Cov hlau uas yuav siv nyob rau hauv tus txheej txheem yuav tsum tiv taus qhov siab tshaj ntawm 50A. Qhov no yuav xav tau 2x2,5 kev hloov kho (ob lub hauv paus nrog ntu ntu uas tsim nyog).

Cov lus sib xyaw ntawm cov roj ntsha thiab cov cai rau nws npaj

Lub ntsiab tivthaiv uas yuav cia chrome plating ntawm cov khoom yog electrolyte. Nws yog tsis yooj yim sua kom ua tiav cov txheej txheem yog tsis muaj nws. Txhawm rau kom cov hlau ua kom tau txais cov duab tsim nyog, kev daws teeb meem yuav tsum muaj cov qauv hauv qab no:

• Chromium anhydride CrO₃ - 250 grams;
• Sulfuric acid (yuav tsum muaj qhov ntom ntawm 1,84) H₂SO₄ - 2,5 grams.

Cov khoom siv no yog diluted nyob rau hauv xws li ntau hauv ib liter ntawm dej distilled. Yog hais tias qhov ntim ntawm qhov kev daws teeb meem yuav tsum tau nce ntxiv, tom qab ntawd qhov ntim ntawm txhua qhov sib ntxiv nce raws li cov teev uas tau hais tawm.

Tag nrho cov no yuav tsum tov kom raug. Nov yog li cas cov txheej txheem yuav tsum tau ua:

1. Cov dej ua kom sov txog li 60 degrees Celsius;
2. Nws yog qhov zoo dua los npaj cov electrolyte tam sim ntawd hauv qhov ntim hauv qhov uas peb yuav ua haujlwm ntu. Nws tau sau nrog ib nrab ntawm cov ntim uas xav tau ntawm distillate;
3. Ncuav chromium anhydride rau hauv dej kub thiab do kom huv si kom nws yaj tag;
4. Ntxiv cov dej ntim uas ploj lawm, sib tov kom huv;
5. Ncuav cov tshuaj sulfuric acid uas xav tau rau hauv cov kev daws (ntxiv cov tshuaj kom zoo, hauv ib kwj nyias);
6. Txhawm rau kom cov xaim hluav taws xob ua kom raug qhov tseeb, nws yuav tsum raug ua tiav siv hluav taws xob;
7. Muab cov cathode thiab anode rau hauv cov kev daws teeb meem ntawm ib qho deb ntawm lwm. Peb dhau qhov hluav taws xob dhau los ntawm cov kua. Qhov ntsuas voltage txiav txim siab ntawm tus nqi 6,5A / 1L. kev daws. Tag nrho cov txheej txheem yuav tsum kav rau peb thiab ib nrab teev. Lub xaim hluav taws xob yuav tsum tsaus xim daj ntawm qhov chaw tawm;
8. Cia cov electrolyte txias thiab txiav txim siab. Txhawm rau ua qhov no, nws txaus kom muab lub taub ntim rau hauv chav txias (piv txwv li, hauv chav nres tsheb) rau ib hnub.

Cov hau kev yooj yim ntawm chrome plating

Txhawm rau muab cov khoom nws cov xeeb ceem nyiaj tiav, plaub txoj kev ntawm chrome plating siv:

1. Kev ua npoo hlau yog txheej txheem zoo ib yam li tha xim. Qhov no yuav xav tau ib qho tsim nyog ntawm cov tshuaj reagents, nrog rau lub tshuab hluav taws xob tso hluav taws xob los ntawm lub tshuab pa hluav taws xob. Raws li qhov ua tiav, ib txheej hlau nyias tau siv rau saum npoo ntawm cov khoom.
2. Ib feem galvanization yog tus txheej txheem nyob rau hauv uas cov chromium molecules tau muab tso rau saum npoo ntawm cov khoom. Qhov peculiarity ntawm txoj kev no yog tias nws haum tsis yog rau cov khoom uas ua los ntawm cov cam khwb cia hlau, hlau, tooj daj lossis tooj liab. Nws tuaj yeem siv los ua txheej txheem yas thiab ntoo. Muab qhov no versatility, cov txheej txheem no yog kim kim thiab siv sijhawm ntau. Nws tsis tsim nyog rau kev siv hauv tsev, vim tias muaj ntau cov txheej txheem thaum lub sij hawm ua cov khoom lag luam yuav tsum raug tswj cia. Piv txwv li, koj yuav tsum nruj me ntsis rau qhov kev tswj hwm qhov kub thiab txias (rau li 8 teev), los yog tswj hwm qhov kev txiav txim siab ntawm cov tshuaj ntsev. Yog tias tsis muaj cov khoom siv ntxiv, qhov no yog qhov nyuaj ua.
3. Txau rau hauv lub tshuab nqus tsev;
4. Diffusion nyob rau hauv high kub tej yam kev mob.

Thawj txheej txheem yog qhov yooj yim tshaj plaws. Rau nws siv, muaj cov khoom siv npaj txhij-rov ua dua tshiab uas muaj cov lus qhia ntxaws ntxiv rau kev sib xyaw. Lawv tau tsim, piv txwv, los ntawm Fusion Technologies. Cov khoom siv zoo li no tsis tas yuav txhim kho cov galvanic txhim kho, thiab cov tshuaj tuaj yeem siv rau thaj chaw ua los ntawm cov khoom siv, suav nrog iav thiab ceramics.

Qhov kawg ob txoj kev tuaj yeem tsuas yog ua hauv Hoobkas. Kev siv tshuab hluav taws xob kuj tseem siv ntau dua hauv cov chaw ua haujlwm, tab sis qee qhov tswj hwm kom muab cov xwm txheej tsim nyog rau cov tshuaj tiv thaiv tsim nyog hauv cov chaw nres tsheb. Nws yog qhov tsim nyog rau kev ua tej yam me me.

Raws li rau txoj kev nyob hauv kev txiav txim siab, rau cov uas siv hluav taws xob saum toj no siv, nws cov nyhuv yuav raug pom tsuas yog siv tooj, tooj dag lossis npib tsib xee. Yog tias muaj qhov yuav tsum tau ua cov khoom lag luam, ntxiv rau, ua ntej chrome plating, ib txheej yog thov rau lawv nrog sputtering ntawm cov qauv ntawm cov sib xyaw uas tsis muaj hlau.

Yuav npaj daim ntaub ua haujlwm li cas

Cov txiaj ntsig ntawm chrome plating cov txheej txheem nyob ntawm seb cov khoom npaj tau zoo npaum li cas. Kev kho xeb yuav tsum tau muab tshem tawm ntawm nws, thiab nws saum npoo yuav tsum yog kom zoo nkauj. Qhov no yuav xav tau sanding.

Tom qab hle cov xim qub, av thiab xeb, qhov saum npoo yuav tsum kho yuav tsum degreased. Qhov no kuj yuav tsum tau siv cov tshuaj tshwj xeeb. Rau ib litre dej, noj 150 grams sodium hydroxide, tsib grams ntawm silicate kua nplaum thiab 50 grams dej qab zib tshauv. Tag nrho cov sib xyaw no yuav tsum muaj kev sib xyaw kom zoo.

Tom ntej no, cov kua ua tau npaj yuav tsum tau muab rhaub kom yuav luag npau npau (txog 90 degrees). Peb muab cov khoom tso rau hauv qhov chaw sov (tsis txhob siv qhov kev daws teeb meem, tab sis siv tag nrho kev siv txhua qhov) rau 20 feeb. Nyob rau hauv cov ntaub ntawv ntawm coob tus ntawm khoov, uas nyob rau ntawm cov hmoov av tsis tau raug tshem tawm tag nrho, txoj kev kho mob yuav tsum tau nqa tawm hauv 60 feeb.

Txoj cai kev nyab xeeb

Ntxiv rau cov cuab yeej yooj yim thiab cov khoom siv, tus neeg nqa ua haujlwm yuav tsum ua kom muaj qhov cua zoo nyob hauv chav kom tsis txhob muaj cov tshuaj lom neeg ua rau ua pa rau txoj hlab pa. Nws yuav zoo dua yog kom muaj qhov hood ntsia rau saum lub tank.

Tom ntej no, koj yuav tsum tau saib xyuas cov khoom siv kev nyab xeeb ntawm tus kheej - tus neeg ua pa ntsuas pa, tsom iav thiab hnab looj tes. Thaum cov txheej txheem tiav, cov kua acidic yuav nyob rau, uas yuav tsum tsis txhob nchuav rau hauv qhov dej qws loj lossis nkag rau hauv av. Vim li no, kev saib xyuas yuav tsum tau muab rau yuav ua li cas thiaj li muaj kev nyab xeeb pov tseg cov khib nyiab tom qab chrome plating.

Ntxiv mus, koj yuav tsum saib xyuas qhov twg cov dej yuav raug tshem tawm, uas yuav siv los yaug qhov feem ua tiav.

Ua haujlwm xaj

Yog tias cov khoom lag luam nrog cov txheej tsis sib txawv ntawm cov hlau tsis xeb yog chrome plated, tom qab ntawd ua ntej pib cov txheej txheem tseem ceeb, qhov chaw tiv tauj yuav tsum tau siv. Txhawm rau ua qhov no, cov roj ntsha tsis muaj roj yuav xav tau muab tso rau hauv lub thawv uas muaj cov tshuaj hydrochloric acid hauv cov dej distilled (ntawm tus nqi ntawm 100 grams ib liter) rau 5-20 feeb. Lub sijhawm siv nyob ntawm hom khoom thiab yam ntxwv ntawm nws hom.

Yog tias nws yog txawm thiab tus, tom qab ntawv ib ntus yog txaus. Xws li ntawm ib feem ntawm cov txheej txheem tsim, nws tsim nyog tuav nws ntev me ntsis, tab sis tsis dhau lub sijhawm teev tseg, yog li cov kua qaub tsis pib corrode cov hlau. Tom qab ua tiav, cov ntu yog rinsed nrog cov dej huv.

Tom ntej no, peb taws lub tshuab hluav taws xob kom sov rau +45^оC. Lub tshuab ua kom chrome-plated tau muab ncua nyob rau hauv lub tank thiab cov hlau tsis zoo yog txuas nrog nws. Nyob ze yog cov hlau lead anode powered los ntawm "+" lub davhlau ya nyob twg.

Ntawm rheostat, lub zog tam sim no tau teeb tsa ntawm tus nqi 15 mus rau 25 Amperes ib square decimeter ntawm saum npoo. Lub qhov khaws cia nyob rau hauv cov xwm txheej zoo li 20 txog 40 feeb. tom qab ua tiav, tshem cov khoom seem ntawm lub tank thiab yaug nrog cov dej huv. Tom qab ib sab yog qhuav, nws tuaj yeem polished nrog microfiber kom muab nws ci ci.

Cov kev tsis txaus ntseeg loj thiab tshem tawm cov pluaj chrome plating tsis zoo

Ntau tshaj qhov tsis tau, tus kws kho mob novice yuav tsis tau txais qhov txiaj ntsig xav tau thawj zaug. Qhov no yuav tsum tsis txhob hem, vim tias nws siv kev paub dhau los thiab raug qhov txheej txheem kom raug. Cov txheej txheem kho kom zoo yuav tsum ua tib zoo xaiv ntawm cov tshuaj degreasers thiab cov cuab yeej siv tshuaj, uas yuav tsum tau muab sib xyaw ua ke raws li cov tuam txhab cov lus qhia

Yog tias qhov ua tiav qhov txiaj ntsig tsis tiav, cov txheej txheej uas muaj teeb meem tuaj yeem tshem tawm hauv cov tshuaj muaj dej thiab hydrochloric acid. Cov kua yog npaj nyob rau hauv qhov kev sib piv hauv qab no: 200 gram ntawm cov kua qaub yog do hauv ib qho ntawm cov roj distillate. Tom qab kev ua tiav, cov khoom tau zoo ntxuav.

Ntawm no yog cov feem ntau cov teeb meem thiab lawv cov laj thawj:

• Zaj duab xis yog tev tawm. Qhov laj thawj yog qhov tsis txaus degreasing, uas yog vim li cas chromium molecules tsis zoo rau ntawm qhov chaw. Hauv qhov no, txheej tau raug tshem tawm, degreased ntau dua kom huv, thiab cov txheej txheem galvanic tau rov ua dua.
• Kev txawv txav tsis zoo ib txwm tshwm ntawm cov npoo ntawm ib sab. Yog tias qhov no tshwm sim, tom qab lub ntsej muag ntse yuav tsum tau txhuam kom lawv sib npaug li qhov ua tau. Yog tias qhov tsis tuaj yeem ua tiav, tom qab ntawd yuav tsum ntsuas lub ntsej muag xim yuav tsum tau muab tso rau hauv thaj chaw teeb meem kom qhov loj npaum li cas tam sim no tsis tsom rau ntawm ntu ntawd.
• Cov ntsiab lus yog matte. Yuav kom nce qhov ci, electrolyte yuav tsum tau rhaub ntau dua los yog cov ntsiab lus chromium hauv qhov tseem ceeb yuav tsum tau nce ntxiv (ntxiv chromium anhydride hmoov rau cov tshuaj). Tom qab ua tiav, ntu yuav tsum tau polished kom ua tiav cov nyhuv ntau.

Ntawm no yog luv luv yees duab yuav ua li cas rau nws tus kheej ua chromium plating los ntawm electroplating tom tsev:

Kev Lom Zem FunChrome Tiag. Kev sib xyaw rau cov xim nickel hauv tsev thiab chrome plating.