Xov Xwm

Kev Taw Qhia Txog Xim

Hauv kev tsim kho vaj tse thiab kev lag luam ntawm lub neej niaj hnub no, cov kav dej ua lub luag haujlwm tseem ceeb. Lawv zoo li cov hlab ntsha thauj mus los ntsiag to, thauj cov kua, roj thiab ntau yam khoom ntsiag to, ua kom muaj zog, ua haujlwm zoo ntawm kev tsim khoom lag luam thiab yooj yim ntawm lub neej txhua hnub. Txawm li cas los xij, tom qab kev ua haujlwm ntsiag to ntawm cov kav dej, muaj ib qho "tus neeg saib xyuas tsis pom" - xim pleev xim rau cov kav dej, uas muab kev tiv thaiv tseem ceeb rau cov kav dej.

1. lub ntsiab lus thiab kev ua haujlwm ntawm cov xim pleev xim

Xim pleev rau yeeb nkab, raws li lub npe qhia, yog xim uas tsim tshwj xeeb los siv rau saum npoo ntawm cov yeeb nkab. Nws lub luag haujlwm tseem ceeb mus deb tshaj qhov yooj yim kho kom zoo nkauj thiab cov paib, tab sis mus tob rau txhua qib ntawm kev tiv thaiv yeeb nkab thiab kev ua haujlwm zoo tshaj plaws.

(1) Kev tiv thaiv xeb thiab xeb

Cov kav dej hlau feem ntau yuav xeb thiab nyob rau hauv cov huab cua ntub, kua qaub lossis alkaline. Qhov no tsis yog tsuas yog ua rau lub neej ua haujlwm ntawm cov kav dej luv luv xwb, tab sis kuj tseem yuav ua rau cov kav dej xau, ua rau muaj kev phom sij loj heev thiab ua rau muaj kuab paug rau ib puag ncig. Cov xim yeeb nkab tuaj yeem tsim ib txheej ntawm qhov chaw ntawm cov kav dej kom cais cov teeb meem ib puag ncig sab nraud, tiv thaiv cov dej noo, oxygen thiab cov tshuaj xeb thiab kev sib cuag ncaj qha ntawm cov hlau. Ntawm lawv, cov xim tiv thaiv xeb, xws li cov hlau lead liab, hmoov zinc, thiab lwm yam, tuaj yeem tshuaj lom neeg nrog cov hlau nto los tsim ib txheej ruaj khov ntawm cov tshuaj sib xyaw, ua rau muaj kev tiv thaiv xeb ntxiv. Ua li no, cov xim yeeb nkab qeeb cov txheej txheem ntawm kev xeb thiab xeb, ntev lub neej ua haujlwm ntawm cov kav dej, thiab txo cov nqi kho thiab hloov pauv vim kev puas tsuaj ntawm cov kav dej.

(2) Txhim kho kev tiv thaiv huab cua

Cov kav dej uas raug tso rau sab nraum zoov yuav raug sim ntawm ntau yam huab cua hnyav, kev raug tshav ntuj yuav ua rau cov txheej txheej laus thiab ploj mus, nag los yuav ua rau cov txheej txheej tsis lo, thiab kev hloov pauv ntawm qhov txias thiab cua sov yuav ua rau cov khoom siv kav dej nthuav dav thiab ntsws, yog li cuam tshuam rau kev ncaj ncees ntawm cov txheej. Cov xim yeeb nkab zoo muaj kev tiv thaiv huab cua zoo heev thiab tuaj yeem tswj tau kev ua haujlwm ruaj khov hauv kev hloov pauv huab cua mus sij hawm ntev. Nws cov qauv tshwj xeeb ua rau nws tiv taus hluav taws xob ultraviolet, tiv thaiv cov txheej txheej laus thiab embrittlement; Tib lub sijhawm, kev tiv thaiv dej zoo ua kom ntseeg tau tias nag tsis nkag mus rau hauv cov txheej, zam kev xeb ntawm cov hlau hauv qab. Thaum lub caij ntuj no txias, cov xim yeeb nkab tuaj yeem tiv taus qhov cuam tshuam ntawm qhov kub qis, tsis muaj kev tawg thiab tev tawm; Thaum lub caij ntuj sov kub, nws tuaj yeem ua kom sov rwb thaiv tsev zoo, txo qhov nce ntawm qhov kub sab hauv ntawm cov kav dej, yog li txo qhov kev ntxhov siab thermal ntawm cov khoom siv kav dej thiab ua kom ntseeg tau tias kev ua haujlwm zoo ntawm cov kav dej.

(3) Kev txheeb xyuas thiab kev ceeb toom

Hauv cov kav dej uas nyuaj heev, cov kav dej rau ntau lub hom phiaj yuav tsum tau sib txawv los ntawm cov xim pom tseeb kom cov neeg ua haujlwm tuaj yeem txheeb xyuas thiab tswj hwm lawv sai thiab raug. Piv txwv li, cov kav dej roj feem ntau yog pleev xim daj kom ceeb toom txog kev phom sij thiab cov kev xav tau siv tshwj xeeb; Cov kav dej hluav taws raug pleev xim liab kom ntseeg tau tias lawv tuaj yeem nrhiav tau sai thiab siv tau thaum muaj xwm txheej ceev. Tsis tas li ntawd, cov xim yeeb nkab kuj tseem tuaj yeem ntxiv cov cim ceeb toom uas ntxim nyiam rau hauv thaj chaw txaus ntshai, thaj chaw siab lossis qhov chaw ua haujlwm tshwj xeeb, xws li "kev phom sij siab", "tsis txhob kov" thiab lwm yam. Cov cim no tsis tsuas yog tuaj yeem ceeb toom cov neeg ua haujlwm kom them sai sai rau kev nyab xeeb, zam kev ua haujlwm tsis raug, tab sis kuj muab cov ntaub ntawv tseem ceeb rau cov neeg ua haujlwm cawm neeg hauv qhov xwm txheej ceev, ua kom nrawm ntawm kev kho mob thaum muaj xwm txheej ceev, thiab txo qhov poob ntawm qhov xwm txheej.

(4) Txhim kho qhov zoo nkauj

Txawm hais tias kev zoo nkauj tsis yog lub luag haujlwm tseem ceeb ntawm cov xim yeeb nkab, ib txheej xim huv si, sib xws, thiab ci ntsa iab tuaj yeem ua kom zoo nkauj dua ntawm lub kaw lus yeeb nkab. Hauv cov chaw lag luam, cov xim yeeb nkab uas tau ua raws li qauv thiab sib koom ua ke tuaj yeem qhia txog qib kev tswj hwm thiab daim duab ntawm cov tuam txhab; Hauv cov chaw pej xeem, xws li txoj kev hauv nroog, thaj chaw nyob, thiab lwm yam, cov xim yeeb nkab zoo nkauj tuaj yeem txo qhov pom kev tsis meej thiab ua rau ib puag ncig huv si thiab muaj kev txiav txim zoo dua. Tsis tas li ntawd, qhov zoo nkauj tuaj yeem ua rau pej xeem ntseeg siab thiab txaus siab rau cov khoom siv hauv paus thiab txhim kho qhov zoo ntawm lub nroog.

2, cov hom thiab cov yam ntxwv ntawm cov xim pleev xim rau hauv cov kav dej

Muaj ntau yam xim pleev rau cov kav dej, txhua tus muaj kev ua tau zoo thiab cov xwm txheej siv tshwj xeeb los ua kom tau raws li qhov xav tau kev tiv thaiv ntawm cov kav dej sib txawv hauv ntau qhov chaw thiab cov xwm txheej ua haujlwm sib txawv.

(1) Xim tiv thaiv xeb

Xim tiv thaiv xeb yog ib txheej txheej tshwj xeeb uas siv los tiv thaiv xeb hlau, thiab yog ib qho ntawm cov txheej txheej tseem ceeb rau kev tiv thaiv cov kav dej. Feem ntau nws muaj cov xim tiv thaiv xeb tshwj xeeb thiab cov khoom ntxiv, uas tuaj yeem tsim cov zaj duab xis tiv thaiv ntom ntom ntawm qhov chaw ntawm cov hlau, thaiv kev sib cuag ntawm cov pa oxygen, dej noo thiab cov khoom siv corrosive thiab cov hlau, yog li kom zoo tiv thaiv qhov tshwm sim ntawm xeb.
Cov xim tiv thaiv xeb feem ntau muab faib ua ob pawg: cov xim tiv thaiv xeb roj thiab cov xim tiv thaiv xeb dej. Cov xim tiv thaiv xeb roj nrog cov kuab tshuaj organic ua cov tshuaj diluent, muaj cov yam ntxwv ntawm kev ziab sai thiab kev ua haujlwm tiv thaiv xeb zoo, tab sis vim nws cov organic compounds volatile (VOC) siab, muaj qee qhov cuam tshuam rau ib puag ncig thiab tib neeg kev noj qab haus huv, yog li kev siv yog raug rau qee qhov kev txwv. Hauv kev sib piv, cov xim tiv thaiv xeb dej siv dej ua cov tshuaj diluent, uas muaj qhov zoo ntawm kev tiv thaiv ib puag ncig, kev nyab xeeb, thiab tsis yooj yim hlawv, thiab ua tau raws li cov cai ntawm cov cai ib puag ncig niaj hnub no. Txawm li cas los xij, nws lub sijhawm ziab ntev heev, thiab nws cov kev ua haujlwm tiv thaiv xeb yuav phem dua li cov xim tiv thaiv xeb roj hauv qee kis.
Hais txog cov xim tiv thaiv xeb, cov xim liab feem ntau, zinc hmoov, zinc phosphate thiab lwm yam. Cov xim liab tiv thaiv xeb muaj cov nyhuv tiv thaiv xeb zoo, tab sis vim tias cov xim liab muaj cov hlau txhuas, ua rau muaj kev phom sij rau ib puag ncig thiab tib neeg lub cev, nws tau maj mam txwv. Cov xim zinc hmoov tiv thaiv xeb siv cov tshuaj tiv thaiv electrochemical ntawm zinc, uas tuaj yeem muab kev tiv thaiv xeb zoo rau cov hlau mus sij hawm ntev, tshwj xeeb tshaj yog rau ib puag ncig hauv dej hiav txwv thiab lwm yam xwm txheej corrosive. Zinc phosphate tiv thaiv xeb xim cuam tshuam nrog cov hlau nto los tsim cov zaj duab xis phosphate ruaj khov, uas muaj cov yam ntxwv tiv thaiv xeb zoo thiab tiv taus dej.

(2) Xim tiv thaiv xeb

Xim tiv thaiv xeb yog ib txheej txheej tsim tshwj xeeb los tiv thaiv kev yaig ntawm cov tshuaj lom neeg, thiab ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv cov kav dej hauv tshuaj lom neeg, roj av, kev kho dej phwj tuaj thiab lwm yam lag luam. Raws li cov xov xwm corrosive sib txawv, xim tiv thaiv xeb tuaj yeem muab faib ua cov xim tiv thaiv acid, xim tiv thaiv alkali, xim tsuag ntsev thiab lwm yam.
Cov xim pleev uas tiv taus kua qaub feem ntau yog siv los tiv thaiv kev xeb ntawm cov kua qaub, xws li sulfuric acid, hydrochloric acid thiab lwm yam. Cov qauv feem ntau muaj cov resins tiv taus kua qaub thiab cov khoom sau tshwj xeeb uas tswj kev ncaj ncees thiab kev ruaj khov ntawm cov txheej hauv cov chaw acidic. Cov xim pleev uas tiv taus alkali yog rau cov tshuaj alkaline, xws li sodium hydroxide, potassium hydroxide, thiab lwm yam, muaj kev tiv thaiv alkali zoo. Cov xim pleev uas tiv taus ntsev yog los daws cov dej ntsev hauv cov chaw ntug dej hiav txwv lossis cov chaw nyob hauv dej hiav txwv, los ntawm cov qauv txheej tshwj xeeb thiab cov xim tiv taus xeb, zoo tiv thaiv cov ntsev tso thiab xeb ntawm qhov chaw ntawm cov kav dej.
Thaum xaiv cov xim tiv thaiv xeb, nws yog ib qho tsim nyog yuav tsum xav txog qhov nruab nrab, qhov kub ua haujlwm, siab thiab lwm yam tseem ceeb ntawm kev thauj mus los hauv cov kav dej. Piv txwv li, hauv cov kav dej tshuaj, yog tias cov tshuaj xa tuaj yog cov tshuaj lom neeg heev, nws yog ib qho tsim nyog los xaiv cov xim tiv thaiv xeb uas tiv taus tshuaj lom neeg zoo heev, thiab xaiv hom resin thiab pigment raws li qhov xwm txheej tshwj xeeb ntawm cov tshuaj.

(3) Xim kub uas tiv taus kub

Hauv qee qhov kev siv tshwj xeeb hauv kev lag luam, xws li cov kav dej cua sov, cov kav dej cub tawg hauv kev lag luam, cov kav dej tso pa tawm ntawm lub cav, thiab lwm yam, cov kav dej yuav tsum ua haujlwm ntev hauv qhov chaw kub siab. Xim tiv taus kub siab tau tsim los ua kom tau raws li qhov kev thov no.
Cov xim uas tiv taus kub siab tuaj yeem tswj tau qhov ruaj khov ntawm cov txheej hauv qab qhov kub siab, tsis muaj qhov mos, ntws, poob thiab lwm yam. Nws cov khoom tseem ceeb suav nrog cov resin tiv taus kub siab, cov xim tiv taus kub thiab cov khoom siv ua haujlwm. Cov xim silicone tiv taus kub siab yog ib hom uas tiv taus kub siab zoo heev thiab siv tau ntev hauv qhov kub ntawm 200 ° C txog 600 ° C. Cov xim inorganic silicon kub siab tuaj yeem tiv taus kub siab dua, txog li 800 ° C lossis ntau dua 1000 ° C, tab sis nws qhov yooj ywm thiab kev nplaum tsis zoo.
Yuav kom ntseeg tau tias cov xim kub siab ua haujlwm tau zoo, yuav tsum tau ua ntej kho kom zoo rau ntawm qhov chaw ntawm cov kav dej ua ntej kev tsim kho kom tshem tawm cov roj, xeb thiab oxide. Tib lub sijhawm, thaum lub sijhawm tsim kho, yuav tsum tau them sai sai rau kev tswj qhov tuab thiab kev sib xws ntawm cov txheej kom tsis txhob muaj qhov tuab dhau lossis nyias dhau.

(4) Xim rwb thaiv tsev

Rau cov kav dej uas xa hluav taws xob lossis siv rau hauv cov khoom siv hluav taws xob, xws li cov kav hlau tiv thaiv cable, cov tsev transformer, thiab lwm yam, kev ua haujlwm rwb thaiv tsev yog qhov tseem ceeb heev. Cov xim rwb thaiv tsev tuaj yeem tsim ib txheej rwb thaiv tsev zoo rau ntawm qhov chaw ntawm cov kav dej, tiv thaiv kev xau hluav taws xob, thiab xyuas kom meej tias cov khoom siv hluav taws xob ua haujlwm zoo.
Cov xim pleev rwb thaiv tsev feem ntau yog ua los ntawm cov roj hmab hluavtaws, cov kuab tshuaj thiab cov khoom siv rwb thaiv tsev, thiab muaj kev tiv thaiv rwb thaiv tsev zoo, tiv thaiv hluav taws xob thiab tiv thaiv dej noo. Cov xim pleev rwb thaiv tsev feem ntau suav nrog cov xim pleev rwb thaiv tsev alkyd, cov xim pleev rwb thaiv tsev polyester, cov xim pleev rwb thaiv tsev epoxy thiab lwm yam. Thaum xaiv cov xim pleev rwb thaiv tsev, nws yog ib qho tsim nyog yuav tsum xav txog txhua yam xws li qhov hluav taws xob ua haujlwm, ib puag ncig siv thiab cov kev cai rwb thaiv tsev ntawm cov kav dej.

(5) Xim tiv thaiv ib puag ncig

Nrog rau kev txhim kho tas mus li ntawm kev saib xyuas thoob ntiaj teb rau kev tiv thaiv ib puag ncig, cov xim yeeb nkab uas zoo rau ib puag ncig tau dhau los ua qhov kev loj hlob ntawm kev ua lag luam. Hom xim no txo cov pa phem ntawm cov organic compounds (VOC) thaum lub sijhawm tsim khoom thiab siv, txo cov pa phem ntawm huab cua ib puag ncig, thiab tseem txo cov kev phom sij rau kev noj qab haus huv rau cov neeg ua haujlwm tsim kho thiab cov neeg siv.
Cov xim tiv thaiv ib puag ncig feem ntau suav nrog cov xim dej, cov xim khov kho thiab cov xim tsis muaj kuab tshuaj thiab lwm yam. Cov xim dej siv dej ua cov tshuaj yaj, tsis muaj cov kuab tshuaj organic, muaj qhov zoo ntawm kev tiv thaiv ib puag ncig, kev nyab xeeb, tsis kub hnyiab thiab lwm yam. Los ntawm kev nce cov khoom khov hauv cov xim, kev siv cov kuab tshuaj raug txo qis, yog li txo cov pa phem VOC. Cov xim tsis muaj kuab tshuaj yuav luag tsis muaj kuab tshuaj thiab muaj cov khoom zoo thiab tshuaj lom neeg, tab sis qhov yuav tsum tau ua kom zoo dua.
Cov xim tiv thaiv ib puag ncig tsis yog tsuas yog zoo heev hauv kev tiv thaiv ib puag ncig xwb, nws cov kev ua tau zoo kuj tseem txhim kho tas li, tuaj yeem ua tau raws li qhov xav tau kev tiv thaiv ntawm ntau yam kav dej, thiab tau ua rau muaj txiaj ntsig zoo rau kev txhim kho kom ruaj khov.

3. kev xaiv cov ntsiab lus pleev xim rau cov kav dej

Kev xaiv cov xim pleev rau cov yeeb nkab yog qhov tseem ceeb kom ntseeg tau tias cov yeeb nkab muaj kev tiv thaiv zoo thiab lub neej ua haujlwm ntev. Thaum xaiv, yuav tsum xav txog ntau yam kom ua tau raws li qhov yuav tsum tau ua ntawm cov yeeb nkab hauv qhov chaw ib puag ncig thiab cov xwm txheej ua haujlwm.

(A) kev siv cov kav dej ib puag ncig

Cov xwm txheej ib puag ncig ntawm cov yeeb nkab yog qhov tseem ceeb tshaj plaws hauv kev xaiv cov xim yeeb nkab. Cov chaw ib puag ncig sib txawv muaj cov kev cai sib txawv rau kev ua haujlwm ntawm cov xim pleev xim.
Yog tias cov kav dej tau teeb tsa rau hauv qhov chaw av noo, xws li cov kav dej phwj tuaj, cov kav dej roj hauv av, thiab lwm yam, nws yog qhov tsim nyog los xaiv cov xim uas tiv taus dej noo thiab tiv taus xeb. Hom xim no feem ntau muaj kev tiv taus dej zoo heev thiab tiv taus tshuaj lom neeg, uas tuaj yeem tiv thaiv kev yaig ntawm dej thiab tshuaj lom neeg hauv cov av hauv av.
Rau cov kav dej uas raug tso rau sab nraum zoov, xws li cov kav dej cua sov saum toj kawg nkaus, cov kav dej roj, thiab lwm yam, lawv yuav tsum tiv taus qhov kev sim ntawm cov yam ntuj tsim xws li lub hnub ci, nag los nag, cua thiab xuab zeb. Yog li ntawd, yuav tsum xaiv cov xim yeeb nkab uas tiv taus huab cua zoo thiab tiv taus kev hnav kom ntseeg tau tias cov xim txheej tseem ruaj khov hauv qhov chaw sab nraum zoov ntev.
Yog tias cov kav dej nyob rau hauv qhov chaw kub siab, xws li cov kav dej rauv taws ua lag luam, cov kav dej fais fab thermal, thiab lwm yam, ces cov xim tiv taus kub siab yog qhov kev xaiv zoo tshaj plaws. Cov xim no tuaj yeem tswj nws cov khoom siv lub cev thiab tshuaj lom neeg ntawm qhov kub siab, tiv thaiv cov kav dej kom tsis txhob hloov pauv, xeb thiab lwm yam teeb meem vim qhov kub siab.

(B) Cov tshuaj uas thauj los ntawm cov kav dej

Cov khoom siv uas cov kav dej thauj mus los kuj muaj feem cuam tshuam tseem ceeb rau kev xaiv cov xim pleev rau cov kav dej. Cov tshuaj sib txawv muaj cov yam ntxwv tshuaj lom neeg thiab lub cev sib txawv, uas yuav ua rau xeb, yaj lossis hnav ntawm cov txheej txheej kav dej.
Yog tias cov kav dej thauj cov kua dej uas muaj xeb, xws li cov kua qaub, alkalis, cov kua ntsev, thiab lwm yam, koj yuav tsum xaiv cov xim tiv thaiv xeb uas tuaj yeem tiv taus kev yaig ntawm cov tshuaj lom neeg sib xws. Piv txwv li, cov kav dej thauj cov kua sulfuric acid yuav tsum siv cov xim tiv taus kua qaub, thiab cov kav dej thauj cov kua sodium hydroxide yuav tsum siv cov xim tiv taus alkali.
Rau kev xa cov khoom siv hluav taws xob thiab tawg xws li roj thiab roj av, ntxiv rau kev xav txog kev ua haujlwm tiv thaiv xeb, nws tseem yog qhov tsim nyog los xaiv cov xim pleev xim nrog kev ua haujlwm zoo tiv thaiv hluav taws xob kom tiv thaiv kev sib sau ua ke ntawm hluav taws xob static los ntawm kev ua rau muaj hluav taws lossis tawg.
Yog tias nws yog cov kav dej zaub mov lossis dej haus, kev xaiv xim yog qhov nruj dua, yuav tsum siv cov xim tiv thaiv ib puag ncig uas tsis muaj tshuaj lom uas ua tau raws li cov qauv kev noj qab haus huv, kom ntseeg tau tias cov khoom thauj tsis muaj kuab paug, los tiv thaiv kev noj qab haus huv thiab kev nyab xeeb ntawm pej xeem.

(C) Cov xwm txheej ntawm kev tsim kho

Cov xwm txheej ntawm kev tsim kho muaj feem cuam tshuam ncaj qha rau kev xaiv thiab kev tsim kho cov xim pleev rau hauv cov kav dej. Txoj kev tsim kho, qhov cua ntawm qhov chaw tsim kho, thiab cov kev cai kho qhov chaw yog txhua yam uas yuav tsum tau xav txog.
Cov xim pleev yeeb nkab sib txawv yog qhov tsim nyog rau ntau txoj kev tsim kho. Piv txwv li, qee cov xim pleev yog qhov tsim nyog rau txhuam vim lawv cov viscosity siab thiab tuaj yeem txuas nrog rau ntawm qhov chaw ntawm cov yeeb nkab hauv qab kev ua haujlwm ntawm txhuam; Lwm cov xim pleev yog qhov tsim nyog dua rau kev txau vim tias lawv tsim cov txheej nyias dua, sib xws dua.
Qhov cua ntawm qhov chaw tsim kho kuj tseem ceeb heev. Hauv cov chaw uas tsis muaj cua, yuav tsum xaiv cov xim uas muaj cov organic compounds tsawg (VOC) kom txo qhov kev puas tsuaj rau kev noj qab haus huv ntawm cov neeg ua haujlwm tsim kho thiab kev ua qias tuaj rau ib puag ncig.
Tsis tas li ntawd xwb, qhov yuav tsum tau kho qhov chaw ntawm cov yeeb nkab kuj yuav cuam tshuam rau kev xaiv xim. Yog tias qhov chaw ntawm cov yeeb nkab muaj xeb heev lossis muaj cov pa phem xws li roj, nws yog ib qho tsim nyog los xaiv cov xim yeeb nkab uas tseem tuaj yeem lo rau hauv qab qhov chaw tsis zoo, lossis kev kho qhov chaw nruj dua ua ntej kev tsim kho.

(D) Nyiaj Txiag

Thaum xaiv cov xim pleev yeeb nkab, cov peev nyiaj kuj yog ib qho tseem ceeb uas tsis tuaj yeem tsis quav ntsej. Tus nqi ntawm ntau hom thiab hom xim pleev yeeb nkab sib txawv heev, yog li nws yog qhov tsim nyog xaiv raws li cov peev nyiaj raws li lub hauv paus ntawm kev ua kom tau raws li cov kev cai tiv thaiv.
Feem ntau, cov xim pleev yeeb nkab uas ua haujlwm tau zoo kim heev, tab sis lawv tuaj yeem muab kev pabcuam ntev dua thiab kev tiv thaiv zoo dua. Yog tias cov peev nyiaj tsawg, koj tuaj yeem xaiv qee cov khoom lag luam pheej yig, tab sis xyuas kom meej tias nws cov kev ua tau zoo tuaj yeem ua tau raws li cov kev xav tau kev tiv thaiv yooj yim ntawm cov yeeb nkab.
Tib lub sijhawm, nws tseem yog qhov tsim nyog los xav txog tus nqi kho cov xim yeeb nkab. Qee cov xim yeeb nkab zoo, txawm hais tias kev nqis peev thawj zaug siab, tej zaum yuav pheej yig dua rau lub sijhawm ntev vim lawv lub zog zoo thiab tsis tas yuav kho ntau zaus.

4, kev tsim kho tshuab ntawm cov kav dej xim

Kev siv tshuab ua vaj tse kom raug yog ib qho tseem ceeb uas yuav pab kom cov xim pleev rau hauv cov kav dej muaj kev tiv thaiv. Tsuas yog ua raws li cov txheej txheem tsim kho kom zoo xwb ces peb thiaj li paub tseeb tias cov xim pleev ntawd zoo thiab ua tau raws li lub hom phiaj xav tau.

(1) Kev kho qhov chaw

Kev kho qhov chaw yog cov kauj ruam tseem ceeb ntawm kev tsim cov xim pleev rau hauv cov kav dej, thiab nws qhov zoo cuam tshuam ncaj qha rau qhov kev nplaum thiab kev tiv thaiv ntawm cov xim pleev.
Ua ntej kho qhov chaw, qhov chaw ntawm cov kav dej yuav tsum tau ntxuav kom huv si kom tshem tawm cov pa phem xws li roj, hmoov av, xeb, thiab oxide. Rau cov kav dej uas xeb heev, kev kho xeb feem ntau yog ua los ntawm kev xuab zeb, pickling, sib tsoo thiab lwm yam. Kev xuab zeb blasting yog ib txoj kev tshem xeb uas siv ntau, uas tshem tawm xeb thiab txheej oxidation los ntawm kev ntaus qhov chaw ntawm cov kav dej nrog cov xuab zeb me me uas txau ntawm qhov ceev ceev, kom qhov chaw ncav cuag qee qhov roughness thiab txhim kho qhov lo rau ntawm cov txheej. Pickling yog kev siv cov kua qaub los yaj cov xeb thiab oxide ntawm qhov chaw ntawm cov kav dej, tab sis nws yog qhov tsim nyog yuav tsum tau them sai sai rau kev kho mob neutralization thiab ntxuav tom qab pickling kom tiv thaiv cov kua qaub seem los ntawm kev ua rau xeb thib ob rau cov kav dej. Kev sib tsoo yog qhov tsim nyog rau kev kho xeb hauv zos lossis thaj chaw me me.
Ntxiv rau kev tshem tawm xeb, nws tseem yog qhov tsim nyog los tshem tawm cov roj thiab hmoov av ntawm qhov chaw ntawm cov kav dej. Cov txheej txheem xws li kev ntxuav cov kuab tshuaj, kev ntxuav lye lossis kev ntxuav dej siab siab tuaj yeem siv tau. Tom qab kev kho qhov chaw tiav lawm, nws yuav tsum tau kuaj xyuas raws sijhawm kom ntseeg tau tias qhov chaw ntawm cov kav dej ua tau raws li qhov yuav tsum tau ua kom huv thiab roughness.

(2) Ua ntej txheej

Kev pleev xim ua ntej yog cov txheej txheem ntawm kev pleev xim ua ntej rau cov qhov ntawm cov kav dej uas nyuaj rau pleev xim, xws li qhov vuam, lub ces kaum, thiab qhov sib koom ua ke.
Vim yog cov duab nyuaj, cov khoom no feem ntau muaj teeb meem xws li txheej nyias thiab txheej ploj hauv cov txheej txheem pleev xim ib txwm muaj, yog li lawv yuav tsum tau kho ua ntej. Cov xim siv hauv kev pleev xim ua ntej yuav tsum zoo ib yam li cov txheej tseem ceeb, thiab kev tsim kho yuav tsum tau ua nrog txhuam lossis rab phom me me kom ntseeg tau tias cov khoom no tau tiv thaiv zoo.

(3) Kev Pleev Xim

Kev pleev xim yog qhov txuas tseem ceeb ntawm kev tsim cov kav dej xim, raws li hom kav dej xim thiab kev tsim kho, xaiv txoj kev pleev xim tsim nyog.
Kev siv txhuam yog ib txoj kev siv txhuam ib txwm muaj, tsim nyog rau thaj chaw me me, cov duab ntawm cov yeeb nkab nyuaj lossis kev kho hauv zos. Thaum siv txhuam, xyuam xim rau qhov tawv thiab dav ntawm cov plaub hau, nrog rau kev coj thiab lub zog ntawm txhuam, kom ntseeg tau tias cov txheej txheem yog sib xws thiab tsis muaj xau.
Cov txheej txheej rau cov menyuam yog qhov tsim nyog rau thaj chaw loj ntawm cov kav dej tiaj tus, tuaj yeem txhim kho kev tsim kho kom zoo dua, tab sis cov txheej tuab yog nyias nyias.
Cov txheej txheej rau cov menyuam yog qhov tsim nyog rau thaj chaw loj ntawm cov kav dej tiaj tus, tuaj yeem txhim kho kev tsim kho kom zoo dua, tab sis cov txheej tuab yog nyias nyias.

Txog peb

Peb lub tuam txhabyeej ib txwm ua raws li "kev tshawb fawb thiab thev naus laus zis, zoo ua ntej, ncaj ncees thiab ntseeg tau, kev siv nruj ntawm ls0900l: .2000 thoob ntiaj teb kev tswj hwm zoo. Peb cov kev tswj hwm thev naus laus zis tshiab, kev pabcuam zoo pov cov khoom zoo, yeej kev lees paub ntawm feem ntau ntawm cov neeg siv.Ua ib lub koom haum txuj ci thiab muaj zog hauv Suav teb, peb tuaj yeem muab cov qauv rau cov neeg siv khoom uas xav yuav, yog tias koj xav tau xim, thov hu rau peb.