Hlau Galvanizing: technologies thiab cov hau kev

Yuav kom tiv thaiv cov hlau tiv thaiv xeb tsim ib tug ntau yam ntawm txoj kev thiab hom kev kawm. Lawv essence yog hais tias lub hlau nto yog them nrog ib tug tshwj xeeb tshuaj. Thaum lub theem kawg ntawm ib tug nyias zaj duab xis. Nws tiv thaiv cov ingress ntawm dej, pa, thiab corrosive tshuaj rau ntawm qhov chaw. Cov no txoj kev yog cais galvanizing hlau. Nws yog qhov zoo tshaj.

Txheej txheem cej luam

Raws li twb tau hais, cov hlau galvanizing - ib tug txheej txheem ntawm txheej qhov chaw ntawm cov khoom ntawm tshwj xeeb khoom. Tej ntsiab yog raws li nyob rau hauv zinc, uas yog feem ntau haum starting khoom. Nws tiv thaiv xeb, thiab kuj tiv thaiv tus nto los ntawm corrosive tshuaj. Lub kho daim ntawv muaj ib tug xov tooj ntawm zoo:

• tsub kom lub dag lub zog ntawm cov khoom;
• kuj mus rau ntau yam kub;
• tsis raug txhoj puab heev tshuaj;
• tsub kom lub neej ntawm cov khoom;
• cov khoom no tsis raug rau oxidation.

hauj paus

Galvanizing hlau yog ib tug nrov txoj kev nyob rau hauv lub ntiaj teb no. Qhov no txoj kev muaj nyob rau hauv hais tias lub steel nto yog them nrog ib tug tshwj xeeb zinc tshuaj. Tom qab ntawd, ib tug nyias zaj duab xis, thiab cov uas ua kev tiv thaiv zog, i.e. tiv thaiv corrosion. Corrosion ntawm cov hlau qauv txawv thiab ua rau cov khoom yuav tsum tau puas.

Raws li xeb?

Raws li twb tau hais, nyob rau hauv cov khoom rau dej thiab oxygen thiab txhoj puab heev tshuaj. Lawv molecules poob mus rau hauv lub sib sib zog nqus qauv ntawm cov hlau uas ua rau yus xeb. Raws li ib tug tshwm sim, nyob rau qhov chaw muaj cov qhov. Xws li ib tug txheej txheem yuav tshwm sim rau ib tug ntev lub sij hawm. Yuav kom qeeb tus oxidation txheej txheem ua hauj lwm ib tug zinc tshuaj.

theem

Zinc plating hlau yog zinc nyob rau hauv lub txheej tiv thaiv zaj duab xis ntawm ntau hom ntawm cov khoom. Nws yog tsim nyog los muaj kev tshwj xeeb cov khoom ua txoj kev ua no. Txhua lub caij uas tus ntaus ntawv yuav tsum tsis txhob yuav tsum tau raug mus ya raws thiab corrosive tshuaj. galvanizing txheej txheem yog muab faib mus rau hauv lub nram qab no theem:

1. Preparatory. Thawj kauj ruam yog los ntxuav cov khoom. Nws saum npoo yuav tsum tau ntxuav los ntawm ntau yam tshuaj thiab ces degrease nws. Ntxiv muaj ib tug etching txheej txheem. Hlau tsab xov xwm no raus nyob rau hauv ib lub taub ntim ntawm ib tug acidic ib puag ncig. Feem ntau, cov kev siv ntawm sulfuric acid tshuaj. Vim hlau etching lub oxide zaj duab xis rau ntawm qhov chaw tshwm sim. Qhov no txhais tau tias cov zinc daws yuav kom ntev. Nyob rau hauv cov kauj ruam kawg cov khoom yog muab tshem tawm los ntawm lub residual acid thiab qhuav.
2. Galvanizing txheej txheem. Qhov no kauj ruam muaj nyob rau hauv hais tias lub npaj tov yog thov mus rau qhov chaw. Yuav kom manufacture nws, nws yog tsim nyog rau yaj lub zinc nyob rau hauv ib tug tshwj xeeb da dej nyob rau hauv qhov kev txiav txim ntawm tshav kub. Thaum cov tshuaj yog npaj nyob rau hauv lub chav dej nws yog xim hlau tsab xov xwm yog dipped thiab nyob rau ob peb feeb.
3. Kom Qhuav khoom. Galvanized khoom ziab rau chav tsev kub.

Txheej txheem galvanizing hlau khoom no tshwm sim nyob rau hauv tshwj xeeb da.

Yog hais tias tsim nyog, lawv yog nruab nrog nyob. Txawm tias lawv tseem ceeb tagnrho, lawv kuj nqa tawm thiab ua ib tug loj tus naj npawb ntawm cov me me khoom. Yog li, khoom siv rau cov galvanizing hlau thiab hlau cov khoom muaj peev xwm tsis muaj tsuas yog me me tab sis tseem loj ntau thiab tsawg pab.

Basic txoj kev kho mob

Cov feem nrov txoj kev uas yuav tiv thaiv hlau cov khoom tiv thaiv xeb yog galvanizing. Muaj ntau txoj kev nyob rau hauv tus txheej txheem. Txhua yam ntawm lawv yog siv rau ib qho hom hlau. Ib txhia tsiaj yuav hnov mob nrog zinc. Muaj plaub hom ntawm kev kho mob: kub, txias, thermal diffusion, electroplating. Xav txog txhua saib nyob rau hauv ntau yam.

kub

Kev pab them nqi ntawm cov khoom nyob rau hauv no txoj kev yog nrov nyob rau hauv ntau lub teb chaws. Nws lub ntsiab zoo nta yog lub siab zoo thiab ntev kev pab cuam lub neej. Yog li ntawd, qhov no txoj kev tau ua ib tug ntawm qhov zoo tshaj plaws. Muaj kuj yog ib tug xov tooj ntawm cov tsis zoo zog. Nyob rau hauv thawj qhov chaw, txoj kev tsis yog environmentally zoo, vim hais tias cov galvanizing kauj ruam npaj thiab siv ntau tshuaj. Tsis tas li ntawd, ib tug tseem ceeb kev nyuaj tshwm sim thaum lub sij hawm kub ua. Zinc yog tsim nyog kom muaj ib tug kub nyob rau hauv ntau ntawm 500 mus 5000ºS. Kom muaj rau theem no ntawm tshav kub ntim ntau npaum li cas hluav taws xob lub hwj chim. Kub poob galvanizing hlau nyob rau hauv tsev - ib tug heev nyuab txheej txheem.

Technologically, cov txheej txheem yog muab faib ua ob theem. Tej kev npaj no thiab galvanizing hlau. Nyob rau hauv thawj theem muab kev koom tes hauv cov kev npaj ntawm cov hlau cov khoom. Nws saum npoo yuav tsum tau degreased thiab ntxuav ntawm cov khib nyiab. Tom qab ntawd lub etching, ntxuav thiab so qhuav.

Cov hauj lwm cov kws kho los ntawm cov kev cai.

Kom npog yog ib feem ntawm zinc yog tsim nyog mus raus nws nyob rau hauv ib tug tshwj xeeb da dej. Nws yog ib tug tshwj xeeb tshuaj, uas tiv thaiv corrosion. Txoj kev rau kho cov hlau thaum lub sij hawm kub poob galvanizing tej zaum yuav txawv. Lawv nyob ntawm seb lub hom thiab zoo ntawm cov khoom. Qhov no technology yog siv nyob rau hauv ntau industries. Piv txwv li, rau qhov siv thiab ua cov galvanized hlau, hlab thiab cov zoo li. D.

Tom qab subjecting lawv mus rau lub kub txoj kev cov khoom muaj ib tug ntev lub neej, uas yog muaj kev tiv thaiv los ntawm corrosion. Lub tsuas muaj teeb meem yog cov da dej. Rau loj qhov chaw yuav tau mus nrhiav ib tug da dej coj tagnrho, uas yog heev yooj yim. Qhov no feature muaj feem xyuam rau tus nqi. Uas ua kub-dip galvanized hlau? Kursk, Moscow, Chelyabinsk, Yaroslavl - nws yog ib tug me me daim ntawv teev ntawm lub zos nyob qhov twg cov ntau yam tuam txhab uas muag muab qhov kev pab no. Lawv feem ntau ua hauj lwm nrog loj tagnrho ntawm nws.

Galvanizing hlau - technology

Qhov no yog siv thaum cov kev kho mob yog tsim nyog du nto. hlau electroplating galvanizing technology yog raws li nyob rau hauv fastening tshuaj rau ntawm qhov chaw ntawm tsab xov xwm vim electrochemical los. Qhov no txoj kev no yog tsim rau kiag li tag nrho cov hom ntawm cov hlau. Cov khoom tau txais niaj hnub glossy finish. Qhov no yog vim fusion ntawm cov hlau txheej, thiab zinc.

Nyob rau qhov no cov tshuaj tiv thaiv yog cuam tshuam los ntawm qhov kuaj nyob rau hauv tus nto ntawm ntau yam khib nyiab los yog lwm yam films. Yog li ntawd, ua ntej yuav pib cov txheej txheem yuav ua li cas tu. Nrog loj zus tau tej cov no nyuaj ua raws li, ces galvanizing tej zaum yuav txom nyem.

Lub electroplating txoj kev yog raws li nyob rau hauv lub immersion ntawm lub nws yog xim hlau tsab xov xwm nyob rau hauv ib tug da dej, qhov chaw uas lub ntsha tov. Kom paub meej ntawm qhov tam sim no qhov twg los yog kev cob cog rua. Nyob rau hauv cov ntaub ntawv no, ib tug txheej txheem ntawm electrolysis. Nws yog raug rau zinc, uas npog lub hlau piece.

goodies

Lub ntsiab zoo zoo yog cov tsos ntawm ib yam khoom - qhov chaw du thiab ci iab. Txawm li cas los, muaj ib tug tseem ceeb disadvantage. Ua ntej txhuav cov kua, uas yog nyob rau hauv lub chav da dej, nws yuav tsum tau ntxuav los ntawm zinc. Nyob rau hauv no txoj kev, ib tug loj npaum li cas ntawm twj uas muaj teeb meem rau cov ib puag ncig. Yog li ntawd nws yog tsim nyog los yuav tshwj xeeb kim khoom. Nws yuav tso zinc los ntawm cov tshuaj. Yog li ntawd, txoj kev no yog ib tug ntawm feem ntau kim.

Yuav ua li cas yuav ua rau ib tug galvanizing hlau nyob hauv tsev?

Qhov no txoj kev yog siv los ntawm ntau masters, thaum koj xav tau lis qhov chaw me me. Ua ntej peb yuav tau mus nrhiav ib tug haum lub thawv thiab ua lub ntsha. Tus txheej txheem yog ua nyob rau hauv ib tug zoo-ventilated cheeb tsam thiab hnav khaub ncaws tiv thaiv, raws li cov ntsha hais yuav ua mob tau rau tib neeg. nyob rau hauv kev sib cuag nrog lawv daim tawv nqaij tau tshuaj kub nyhiab. Yuav kom npaj nqa mus dej, zinc sulphide, magnesium thiab vinegar. Npaj concentrate yuav tsum lim. Ntxiv mus, cov hlau ib feem uas nws txo qis rau hauv lub thawv thiab npaj rau cov anode khoom. Yuav kom ib tug me me daim zinc txuas tooj liab hlau, uas yog kev cob cog rua rau lub mains. Cov khoom uas nws txo qis rau hauv lub ntsha thiab cov txheej txheem yuav pib. Tom qab hais tias, cov hlau ib feem yog qhuav. Electroplating hlau galvanizing nyob rau hauv tsev yog haum yooj yim.

nta Khaub thuas

Nyob tsis ntev los no xyoo, qhov no txoj kev yog dav siv. Nws essence lies nyob rau hauv lub fact tias cov nws yog xim hlau tsab xov xwm yog pleev xim rau nrog tshwj xeeb cov tshuaj uas muaj zinc. Qhov no txoj kev tsis yuav tsum tau tshwj xeeb cov kev txawj. Txawm li cas los, muaj drawbacks: galvanizing tiav lawm cov khoom no yuav txhua yam kev nyuaj siab. Nyob rau hauv tas li ntawd, qhov yuav tsum tau rau lossi saib xyuas cov kev ua hauj lwm, uas yog npaj ib tug tov thiab yog cov hauj lwm. Raws li hais ua ntej lawm, qhov no txoj kev yog heev yooj yim. Yog li ntawd, cov khoom rau txias galvanizing hlau yog tsis yuav tsum tau. Cov ua hauj lwm yuav tsum tau ua nyob rau hauv raws li cov kab mob cov kev cai. Siv tus qauv no, cov yeeb nkab yog tiav, raws li zoo raws li cov khoom uas yog nyob rau hauv lub taag embodiment. Rau qhov no nws yog tsim nyog los npaj ib tug tov thiab thov nws rau cov khoom nrog ib tug txhuam los yog rau cov menyuam. Lub tsuas cov khoom rau txias galvanizing hlau, uas yog siv - ib cov tshuaj tsuag raj mis. Nws yuav pab mus cuag muab tsis cuag qhov chaw thiab ua xim tusyees thiab nraaj. Ntawm cov disadvantages, ntau cov neeg muaj qhia tsawg ntseeg.

Cov cuab yeej ntawm thermal diffusion galvanizing

Raws li txoj kev ntawm kev siv rau ib ntev lub sij hawm, tab sis nws yog nrov rau hnub no.

Nws twb xub siv nyob rau hauv ces nyob rau hauv lub lig XIX caug xyoo. Qhov no invention ua paub ua tsaug rau tus naas ej tus paub txog Sherard. Txawm li cas los, qhov no txoj kev yog sai sai tsis nco qab lawm thiab hloov nws nrog lwm tus. Nws lub rooj txhawb siab tuaj nyob rau thaum xaus ntawm lub thib nees nkaum caug xyoo. Cov cuab yeej ntawm thermal diffusion qauv no yog tias qhov chaw yog kho nrog zinc hlau cov khoom uas yog nyob rau hauv lub vapor lub xeev. Rau lub hom phiaj no nws yog tsim nyog los ua cua sov rau txog 2500ºS. Cov txheej txheem yog ua nyob rau hauv ib tug kaw ntim thaum uas muaj ib tug zinc-muaj sib tov, thiab hlau ntsiab. Cov cuab yeej ntawm txoj kev ua no yog txiav txim los ntawm tsis tsuas domestic, tab sis kuj cov ntshuam ntxawg cov ntaub ntawv.

Thermodiffusion galvanizing khiav lag luam nyob rau hauv lub rooj plaub thaum nws yog tsim nyog mus cuag ib tug tuab ntawm 20 microns. Cov hauj txheej txheem yog zoo li kub-dip galvanizing txoj kev. Txawm li cas los, muaj cov sib txawv, ib yam nkaus thiab. Qhov npaj khoom uas nws txo qis rau hauv lub teb kiln, qhov twg vim lub rotating quab yuam ua tshwm sim. Qhov no txoj kev yog nqa tawm rau 3 xuab moos cov khoom no. Nrog nws cov pleev xim rau ntau yam me me qhov chaw xws li screws thiab txuas.

Tsis zoo li kub txoj kev, daim ntawv thov ntawm cov zinc pollination tshwm sim uniformly tshaj tag nrho saum npoo.

xaus

Qhov no txoj kev yuav pab kom tiv thaiv rau ntau yam hlau qhov chaw ntawm xeb, ya raws thiab corrosive tshuaj. Muaj 4 yam ntawm galvanizing technology. Txhua yam ntawm lawv nws muaj nws tus yam ntxwv thiab yog haum rau ib hom ntawm cov hlau. Incompatibility ntawm lub Cheebtsam ua rau cov neeg pluag uas tseg tau thiab raws li ib tug tsim nyog tau, mus rau ib tug txo nyob rau hauv lub dag lub zog ntawm cov khoom muag kawg. Galvanizing yuav siv sij hawm qhov chaw nyob rau hauv tshwj xeeb da los yog teb kilns. Txawm li cas los, cov txheej txheem yuav ua li cas nyob rau hauv lub tsev. Ua li no, koj yuav tau mus yuav khoom siv. Ua hauj lwm yog nqa tawm nyob rau hauv ib tug ventilated chav tsev nyob rau hauv ib tug tshwj xeeb kev tiv thaiv cov khaub ncaws, raws li ib co Cheebtsam yuav ua mob tau rau tib neeg lub cev.