Nto kho ntawm tuag castings yog qhov txheej txheem tseem ceeb los txhim kho cov tsos zoo thiab corrosion tsis kam ntawm tuag cas castings. Cov qauv kev kho mob ntau yam suav nrog kev kho mob tshuaj, kev kho tshuab thiab kev kho tshuab Electrochemical.
Kev Siv Tshuaj Kho Mob
Pickling: tshem tawm cov txheej oxide thiab cov npoo av los ntawm kev raus cov txhuas qhov sib xyaw hauv cov tshuaj acidic. Cov kev daws teeb meem nquag muaj xws li nitric acid, sulfuric acid thiab hydrochloric acid.
Alkali ntxuav: neutralize cov acidic tshuaj seem tom qab pickling. Feem ntau siv alkaline ntxuav cov kev daws teeb meem suav nrog sodium hydroxide thiab potassium hydroxide.
Kev Kho Mob: Siv cov kev nruab nrab nruab nrab xws li cov dej ntws tsis muaj zog lossis tsis muaj qhov tsis zoo rau cov khoom seem ntawm cov khoom seem thiab cov khoom siv alkali.
Kev Kho Mob Mechanical kev kho
Sib tsoo thiab polishing: siv cov khoom siv xws li kev sib tsoo thiab grinders kom tshem tawm saum npoo burrs thiab roughness thiab txhim kho qhov chaw ua tiav.
Xuab zeb Blasting: Tshem cov av thiab oxide txheej los ntawm kev txau cov xuab zeb hais ntawm kev kub ceev los txhim kho saum npoo av roughness.
POLISHING: Siv lub tshuab polishing thiab cov hmoov txhuas kom co hmoov ntawm txhuas qhov chaw kom txhim kho saum npoo ua tiav thiab ci ci.
Electrochemical Kev Kho Mob
Anodizing: Thov voltage thiab tam sim no nyob rau hauv ib qho acidic electrolyte los tsim zaj duab xis oxide zaj duab xis ntawm txhuas qhov los txhim kho corrosion tsis kam thiab tawv.
Electroplating: Tso nyiaj hlau ua yeeb yaj kiab hlau nyob rau saum npoo ntawm txhuas qhov chaw los ntawm electrolysis. Feem ntau siv cov txheej electroplating suav nrog cov npib tsib xee, chromium, zinc, etc. txhawm rau txhim kho corrosion tsis kam thiab zoo nkauj.
Anodic Kev Tiv Thaiv: Thov voltage thiab tam sim no los ua zaj duab tiv thaiv ntawm cov npoo txhuas, uas yog qhov tsim nyog rau kev siv sab nraum zoov.
Cuam tshuam thiab siv tom qab kev kho mob tom qab
Hmoov txau: hmoov txheej yog tusyees txau ntawm cov tuag-casting cov khoom siv txau los ntawm cov hmoov sib txaws nrog lub zog zoo nkauj, corrosion tsis kam thiab laus tsis kam.
Ci Xim: Tshuaj tsuag thiab ci tom qab phosphat kho kom tsim kom muaj qhov ci ci thiab hnav kom zoo nkauj thiab kev ua kom haum.
Kev Kho Mob Passive: Ib zaj yeeb yaj kiab tiv thaiv yog tsim los ntawm oxidation kev kho mob, uas yog qhov tsim nyog rau cov khoom lag luam uas xav tau lossis kho kom zoo nkauj.
Sandblasting: Txhim kho qhov sib txhuam coefficient ntawm kev tiv tauj saum npoo, haum rau cov khoom lag luam uas yuav tsum tau txhim kho kev sib txuas kev sib cuag kev vam meej.
Cov hau kev no tuaj yeem raug xaiv thiab siv raws li cov kev xav tau kom ua tiav qhov kev kho zoo hauv cov nyhuv zoo tshaj plaws.
Nto Kho Kev Mob Ntawm Tuag Cuav
Lub hauv paus rau phau ntawv
Kev kho deg yog qhov tseem ceeb ntawm cov txheej txheem ntau lawm rau kev tuag casings. Nws cuam tshuam nrog kev thov ntawm ntau cov tswv yim los tsim kev du, visually txaus siab saum npoo ntawm cov duab pov. Kev kho deg yog ib qho tseem ceeb hauv kev tsim khoom, raws li nws pab txhim kho kom zoo thiab ruaj khov ntawm cov khoom tiav. Kab lus no yuav tshawb txog ntau cov txuj ci ntau hauv kev kho saum npoo av rau tuag castings.
Cov Hom Kev Kho Cov Kev Kho Mob
Muaj ntau hom kev kho cov tshuaj saum npoo uas tuaj yeem siv los ua kom tuag castings. Qee cov ntsiab lus feem ntau suav nrog:
1. Anodizing - Anodizing yog cov txheej txheem uas siv chav da dej huv los tsim cov roj oxide ntawm cov npoo ntawm lub pov. Cov txheej no pab los tiv thaiv corrosion, txhim kho cov hnav tsis kam thiab ua rau saum npoo ua kom zoo nkauj ntxiv. Anodizing feem ntau ua rau ntau cov xim uas muaj los ntawm ntuj rau dub.
2. Hmoov txheej - hmoov txheej cuam tshuam nrog daim ntawv thov ntawm cov hmoov qhuav rau saum npoo ntawm lub pov. Cov hmoov yog ces rhuab, uas ua rau nws yaj thiab ua ib txheej du, tiv thaiv txheej txheem. Hmoov txheej muaj nyob rau hauv ntau yam xim thiab ua tiav.
3. Electructions - electroplating muaj feem cuam tshuam nrog kev siv cov tshuab hluav taws xob electrolytic mus rau phaj ib qho hlau hlau mus rau saum npoo ntawm lub pov. Cov txheej txheem no tuaj yeem siv los tsim ntau yam tiav, suav nrog kub, nyiaj thiab chrome. Electroplating yog feem ntau siv los txhim kho cov tsos ntawm lub casting.
4. Painting - Kev tha xim yog ib txoj kev kho kua ntau zaus uas cuam tshuam nrog cov kua ua kua rau saum npoo ntawm cov casting. Qhov no feem ntau yog siv rab phom tsuag lossis lwm tus neeg thov. Xim tuaj yeem siv los tsim ntau yam xim thiab ua tiav.
5. Polishing - Polishing cuam tshuam nrog kev siv cov khoom siv abrasive kom tshem tawm tej tsis tiav ntawm cov chaw ntawm lub casting. Cov txheej txheem no tuaj yeem siv los tsim cov iav-zoo li ua tiav ntawm cov npoo ntawm lub pov.
Cov txiaj ntsig ntawm Kev Kho Mob Nto
Muaj ntau cov txiaj ntsig los siv kev kho sab saum npoo ntawm kev tuag castings. Qee qhov ntawm thawj cov txiaj ntsig suav nrog:
1. Txhim kho cov tsos - kev kho deg yuav siv tau los txhim kho cov tsos ntawm lub casting. Qhov no tuaj yeem los ntawm kev tsim daim iav-zoo li ua tiav los thov cov xim lossis kev ntxhib tshab.
2. Txhim kho cov kev kho mob durability - saum npoo yuav pab txhim kho lub durability ntawm kev tiv thaiv los ntawm kev tiv thaiv nws thiab hnav.
3. Kev ua neej nyob li cas - los ntawm kev txhim kho lub siab ntawm cov casting, kev kho deg tuaj yeem pab nce nws lifespan.
4. Kev tu ib sab nrauv - ib qho chaw kho saum npoo yuav tsum tau muaj txij nkawm tsawg dua li qhov tsis kho tau vim tias nws tsis tshua raug mob rau corrosion thiab hnav.
5. Txhim kho kev ua tau zoo - sab saum npoo kuj tseem tuaj yeem txhim kho kev ua tau zoo ntawm kev ua kom pom kev sib txhuam los ntawm kev ua kom muaj cua sov.
Tag
Kev kho deg yog qhov tseem ceeb ntawm cov txheej txheem ntau lawm rau kev tuag castings. Muaj ob peb txoj kev kho cov txheej txheem saum npoo uas tuaj yeem siv los txhim kho cov tsos, kev ua kom ntev, thiab kev ua tau zoo ntawm kev tuag castings. Cov tswv yim no tseem tuaj yeem nce lub neej ntawm kev ua haujlwm ntawm cov casting thiab txo qhov xav tau kev saib xyuas. Los ntawm kev siv cov tswv yim saum npoo av, cov chaw tsim khoom tuaj yeem tsim cov khoom zoo, pom kev zoo siab tuag castings uas yog cov ruaj khov thiab ntev ntev.
