Kev xaiv cov khoom siv yog qhov tseem ceeb rau kev ua kom ntseeg tau tias cov qhov dej tsaws tsag hauv cov tshuab tiv thaiv hluav taws muaj kev ntseeg siab. Tooj dag thiab tooj dag, ob hom hlau sib xyaw uas siv dav dav, muaj cov yam ntxwv ntawm lub cev thiab kev ua haujlwm sib txawv.
- Tooj dagnws tiv taus corrosion heev, yooj yim heev, thiab ruaj khov, ua rau nws yog qhov kev xaiv zoo heev rau cov ntawv thov xws li cov li qub ncaj thiab cov li qub tswj siab.
- Tooj liab, thaum tseem tiv taus corrosion, muaj porosity siab dua thiab txo qis durability, uas yuav ua rau cov khoom puas tsuaj raws sijhawm.
Kev xaiv cov khoom siv tsim nyog yog qhov tseem ceeb los lav qhov ua tau ntev thiab kev ua haujlwm zoo tshaj plaws ntawm cov qhov dej tsaws tsag, suav nrog PRV qhov dej thiabcov twj tso kua mis txwv tsis pub siab, hla ntau yam xwm txheej ib puag ncig.
Cov Ntsiab Lus Tseem Ceeb
- Tooj liab pheej yig duathiab yooj yim rau kev ua kom zoo nkauj, yog li nws ua haujlwm zoo rau cov tshuab hluav taws sab hauv tsev uas muaj kev ntxhov siab nruab nrab.
- Tooj liab muaj zog dua thiab tiv taus xeb zoo dua, ua rau nws zoo rau cov chaw nyuaj xws li nyob ze dej hiav txwv.
- Xaiv cov khoom siv zoorau cov li qub tsaws nyob ntawm seb nws siv qhov twg thiab nws yog dab tsi kom paub tseeb tias nws kav ntev thiab ua haujlwm zoo.
Cov Khoom Siv Sib xyaw ntawm Cov Li Qub tsaws
Tooj Liab: Cov Khoom Thiab Cov Khoom
Tooj dag yog ib qho hlau sib xyaw ua ke uas muaj tooj liab thiab zinc, nrog rau qhov sib piv sib txawv raws li qhov siv tau. Cov ntsiab lus tooj liab feem ntau yog li ntawm 55% txog 95%, thaum zinc ua rau 5% txog 45%. Cov ntsiab lus ntxiv xws li txhuas, hlau, txhuas, nickel, thiab arsenic feem ntau raug ntxiv los txhim kho cov yam ntxwv tshwj xeeb.
- Cov hlau leadtxhim kho kev siv tshuab tau zoo, ua rau tooj dag yooj yim dua rau kev ua duab thaum lub sijhawm tsim khoom.
- Hlauua rau lub zog nce ntxiv, ua kom cov khoom siv tuaj yeem tiv taus kev ntxhov siab ntawm cov khoom siv.
- Aluminiumthiabnpib tsibtxhim kho kev tiv thaiv corrosion, ua rau tooj dag tsim nyog rau cov chaw uas raug dej noo lossis tshuaj lom neeg.
Tooj dag yog lub npe nrov rau nws qhov kev hloov pauv tau zoo heev, ua rau cov chaw tsim khoom tsim cov qauv tsim rau cov qhov dej tsaws tsag. Nws txoj kev tiv thaiv xeb ua kom muaj kev ruaj khov hauv cov kab ke tiv thaiv hluav taws, qhov twg kev ntseeg tau yog qhov tseem ceeb.
Tooj Liab: Cov Khoom Thiab Cov Khoom
Tooj liab yog ib qho hlau sib xyaw ua ke uas muaj tooj liab thiab tin, nrog rau tooj liab muaj kwv yees li 88% thiab tin kwv yees li 12%. Cov ntsiab lus ntxiv xws li txhuas, nickel, phosphorus, silicon, thiab manganese feem ntau suav nrog los txhim kho cov khoom siv kho tshuab thiab tshuaj lom neeg.
- Aluminiumua rau muaj zog thiab tiv taus corrosion, ua rau tooj liab zoo tagnrho rau cov chaw nyob hauv dej hiav txwv.
- Nickelua rau kom tsis txhob lwj thiab ua kom ruaj khov dua.
- Phosphorustxhim kho kev hnav tsis kam, ua kom lub neej ntev hauv kev siv kev sib txhuam siab.
- Siliconthiabmanganesepab txhawb rau lub zog kho tshuab thiab kev ywj pheej.
Tooj liab muaj lub zog tensile siab thiab tiv taus corrosion zoo heev, tshwj xeeb tshaj yog nyob rau hauv qhov chaw nyuaj. Piv txwv li, nickel txhuas tooj liab yog siv dav hauv cov khoom siv aerospace vim nws lub zog tensile ntawm 550 txog 900 MPa thiab kev ruaj khov hauv cov xwm txheej marine. Ib yam li ntawd, C932 bronze bearing, nrog lub zog tensile ntawm kwv yees li 35,000 PSI, feem ntau siv hauv cov khoom siv valve.
Cov Kev Txawv Tseem Ceeb hauv Cov Khoom Siv
Qhov sib txawv ntawm cov khoom sib xyaw ntawm tooj dag thiab tooj dag muaj feem cuam tshuam rau lawv cov khoom siv lub cev thiab kev tsim nyog rau cov li qub tsaws.
| Cov hlau nplaum | Cov Cheebtsam Tseem Ceeb | Cov Ntsiab Lus Ntxiv thiab Lawv Cov Kev Cuam Tshuam |
|---|---|---|
| Tooj liab | Tooj liab (88%), Tin (12%) | Txhuas (lub zog, tiv taus xeb), Nickel (lub zog, tiv taus tarnish), Phosphorus (hnav tsis kam), Silicon (lub zog), Manganese (khoom siv kho tshuab) |
| Tooj dag | Tooj liab (55%-95%), Zinc (5%-45%) | Ua txhuas (ua tau ntau yam), Hlau (lub zog), Txhuas (ua tsis taus xeb), Nickel (ua tsis taus xeb), Arsenic (ua tsis taus xeb) |
Tooj dag muaj cov zinc ntau dua, uas ua rau nws yooj yim dua los ua kom nws cov khoom siv tau yooj yim dua thiab ua tau yooj yim dua, ua rau nws yooj yim dua los tsim cov qhov dej tsaws nrog cov qauv tsim nyuaj. Tooj dag, ntawm qhov tod tes, vam khom tin thiab lwm yam khoom kom ua tiav lub zog zoo dua thiab hnav tsis kam, ua rau nws tsim nyog rau cov ntawv thov uas xav tau kev ruaj khov nyob rau hauv kev ntxhov siab.
Qhov sib txawv ntawm ntau yam ntxiv qhia txog lawv cov yam ntxwv tshwj xeeb:
| Khoom siv | Tooj liab (%) | Zinc (%) | Tooj liab (%) | Lwm Cov Ntsiab Lus |
|---|---|---|---|---|
| Tooj dag | 57% txog 63% | 35% txog 40% | Tsis muaj | Tsis muaj |
| Tooj liab | Tooj liab + Tin | Tsis muaj | Tsis muaj | Nickel, Manganese (muaj peev xwm ntxiv tau) |
Cov kev sib txawv no qhia txog qhov tseem ceeb ntawm kev xaiv cov khoom siv zoo rau cov li qub tsaws raws licov kev cai thov tshwj xeebthiab tej yam kev mob ib puag ncig.
Kev Tiv Thaiv Kev Xeb Hauv Cov Li Qub Tsaws
Tooj dag thiab Corrosion Resistance
Tooj dag ua tau zoo heev rau kev tiv thaiv xeb, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas muaj kev phom sij tsawg kawg nkaus rau cov tshuaj lom neeg hnyav lossis cov xwm txheej hnyav. Nws cov tooj liab ntau ua rau muaj txheej oxide tiv thaiv thaum raug cua lossis dej, uas tiv thaiv kev puas tsuaj ntxiv. Cov yam ntxwv no ua rau tooj dag yog cov khoom siv txhim khu kev qha rau kev tsaws qhov dej siv hauv cov kab ke tiv thaiv hluav taws hauv tsev lossis thaj chaw uas muaj cov xwm txheej ib puag ncig tswj tau.
Qhov ntxiv cov khoom xws li txhuas thiab nickel ntxiv ua rau tooj dag muaj peev xwm tiv taus xeb. Aluminium tsim ib txheej oxide nyias, ruaj khov uas tiv thaiv cov khoom los ntawm cov dej noo thiab tshuaj lom neeg. Nickel, ntawm qhov tod tes, txhim kho kev tiv thaiv tarnish, xyuas kom meej tias cov khoom khaws nws cov tsos thiab kev ua haujlwm dhau sijhawm. Cov yam ntxwv no ua rau tooj dag yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov uas xav tau ob qho tib si ruaj khov thiab zoo nkauj.
Kev Tiv Thaiv Tooj Liab thiab Kev Tiv Thaiv Corrosion
Bronze muaj kev zoo duakev tiv thaiv xeb, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig nyuaj xws li marine lossis industrial chaw. Nws cov khoom sib xyaw, feem ntau yog tooj liab thiab tin, muab ib qho kev thaiv ntuj tiv thaiv oxidation thiab tshuaj lom neeg. Kev suav nrog cov ntsiab lus xws li txhuas thiab phosphorus ntxiv dag zog rau nws txoj kev tiv thaiv kev hnav thiab corrosion.
Kev tshawb fawb qhia tau hais tias nickel-aluminium bronze (NAB) ua rau muaj kev tiv thaiv xeb zoo dua hauv cov chaw nyob hauv dej hiav txwv. Qhov kev txhim kho no yog los ntawm cov yam ntxwv me me ntawm NAB/steel composite structures, tshwj xeeb tshaj yog cov uas tsim los ntawm Wire-Arc Additive Manufacturing (WAAM). Qhov me me ntawm cov noob thiab cov dej nag tsawg ntawm κ theem hauv WAAM-NAB txo qhov xeb xaiv theem, ua rau muaj kev ua tau zoo dua. Cov yam ntxwv no ua rau tooj liab yog cov khoom siv nyiam rau kev tsaws cov li qub uas raug dej ntsev lossis lwm yam tshuaj corrosive.
Tej Yam Ib puag ncig uas cuam tshuam rau kev xeb
Ib puag ncig ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab qhov kev tiv thaiv xeb ntawm cov khoom siv hauv cov qhov dej tsaws. Cov yam xws li av noo, kub, thiab kev raug tshuaj lom neeg lossis dej ntsev tuaj yeem ua rau cov txheej txheem xeb sai dua. Piv txwv li, tooj dag ua haujlwm tau zoo hauv qhov chaw qhuav lossis qhov chaw noo noo nruab nrab tab sis tuaj yeem xeb sai dua hauv qhov chaw uas muaj ntsev ntau lossis raug kua qaub.
Tooj liab, nrog nws cov khoom muaj zog, tiv taus cov xwm txheej hnyav dua, suav nrog cov chaw nyob hauv dej hiav txwv thiab kev siv hauv kev lag luam. Txawm li cas los xij, txawm tias tooj liab tuaj yeem raug puas tsuaj yog tias raug rau cov pH siab heev lossis kov cov tshuaj lom neeg ntev. Kev saib xyuas tsis tu ncua thiab kev xaiv cov khoom siv kom raug raws litej yam kev mob ib puag ncigyog qhov tseem ceeb rau kev ua kom lub neej ntev thiab kev ntseeg tau ntawm cov li qub tsaws.
Kev ruaj khov thiab lub zog ntawm cov twj tso kua mis tsaws
Cov Khoom Siv Kho Tshuab ntawm Tooj Liab
Tooj dag muaj lub zog thiab kev ywj pheej tshwj xeeb, ua rau nws yog cov khoom siv txhim khu kev qha rau kev tsaws valve. Nws lub zog tensile feem ntau yog li ntawm 200 txog 550 MPa, nyob ntawm seb cov khoom sib xyaw ua ke. Lub zog no tso cai rau tooj dag kom nyiaj dhau qhov kev ntxhov siab nruab nrab yam tsis muaj kev tawg lossis deforming. Tsis tas li ntawd, nws qhov kev ywj pheej ua kom ntseeg tau tias cov chaw tsim khoom tuaj yeem tsim nws mus rau hauv cov qauv tsim tsis muaj kev cuam tshuam rau nws cov qauv.
Tooj dag kuj ua tau zoo heev rau kev tiv thaiv kev hnav, tshwj xeeb tshaj yog nyob rau hauv qhov chaw uas tsis muaj kev sib txhuam. Cov yam ntxwv no txo qhov yuav ua rau qhov chaw puas tsuaj raws sijhawm, ua kom muaj kev ua haujlwm zoo. Kev suav nrog cov khoom xws li hlau thiab txhuas ntxiv ua rau nws ruaj khov, ua rau nws haum rau cov ntawv thov uas xav tau ob qho tib si lub zog thiab kev ua haujlwm raug.
Cov Khoom Siv Kho Tshuab ntawm Tooj Liab
Tooj liab yog lub npe nrov rau nws lub zog thiab kev ywj pheej zoo tshaj plaws nyob rau hauv cov xwm txheej kev ntxhov siab siab. Nws lub zog tensile feem ntau yog li ntawm 300 txog 800 MPa, nyob ntawm seb cov hlau sib xyaw. Qhov no ua rau tooj liab yog qhov kev xaiv zoo heev rau cov ntawv thov uas qhov ruaj khov yog qhov tseem ceeb. Kev ntxiv cov tin thiab lwm yam khoom xws li phosphorus thiab manganese ua rau nws tsis yooj yim hnav, ua rau nws tiv taus kev siv ntev hauv cov chaw nyuaj.
Tooj liab kuj tseem zoo heev rau cov ntawv thov uas muaj kev sib txhuam ntau vim nws cov coefficient tsawg ntawm kev sib txhuam. Cov yam ntxwv no txo qhov kev hnav thiab tsim kua muag, ua rau lub neej ntawm cov khoom siv ntev dua. Nws lub peev xwm los tswj kev ruaj khov ntawm cov qauv hauv qab qhov xwm txheej hnyav ua rau nws yog cov khoom siv nyiam rau kev tsaws cov li qub uas raug rau cov khoom siv hnyav.
Kev Ruaj Ntseg Ntev Hauv Kev Siv Lub Tshuab Nqus Dej
Qhov ua tau ntev ntawm cov qhov dej tsaws tsag nyob ntawm seb cov khoom siv puas muaj peev xwm tiv taus kev hnav, xeb, thiab kev ntxhov siab ntawm lub cev. Kev tshawb fawb txog lub neej ntev ntawm lub qhov dej, xws li kev tshawb fawb txog kev cog rau hauv lub qhov dej transcatheter aortic (TAVI), muab cov kev nkag siab zoo. Piv txwv li, qhov kev sim PARTNER-1 tau tshaj tawm tias tsis muaj kev puas tsuaj ntawm lub qhov dej (SVD) tom qab tsib xyoos, thaum lwm qhov kev tshawb fawb tau pom tias muaj SVD ntau ntxiv ntawm 14.9% tom qab xya xyoos. Cov kev tshawb pom no qhia txog qhov tseem ceeb ntawmxaiv cov ntaub ntawv uas muaj kev ruaj khovrau cov ntawv thov tseem ceeb.
Tooj dag thiab tooj dag ob leeg muajkev ua haujlwm ntev thaum sivhauv cov qhov dej tsaws. Txawm li cas los xij, qhov kev xaiv ntawm ob qho no nyob ntawm daim ntawv thov tshwj xeeb thiab cov xwm txheej ib puag ncig. Tooj dag yog qhov zoo tagnrho rau kev ntxhov siab nruab nrab thiab cov chaw tswj hwm, thaum tooj dag zoo tshaj plaws hauv kev ntxhov siab siab lossis qhov chaw corrosive. Kev xaiv cov khoom siv kom raug ua kom ntseeg tau tias qhov kev ntseeg tau thiab lub neej ntev ntawm cov qhov dej tsaws hauv cov kab ke tiv thaiv hluav taws.
Tus nqi thiab kev siv tau ntawm cov twj tso kua mis tsaws
Kev Sib Piv Tus Nqi: Tooj Liab vs. Tooj Liab
Tooj dag thiab tooj dag sib txawv ntawm tus nqi vim lawv muaj pes tsawg leeg thiab muaj pes tsawg. Tooj dag, feem ntau yog ua los ntawm tooj liab thiab zinc, feem ntau pheej yig dua. Nws siv dav hauv kev siv dej thiab kev lag luam ua rau nws tus nqi qis dua. Tooj dag, uas muaj tooj liab thiab tin, feem ntau raug nqi ntau dua vim tsis muaj tin thiab cov hlau tshwj xeeb uas xav tau rau qee yam kev siv.
Cov chaw tsim khoom feem ntau xaiv tooj dag rau cov twj tso kua mis thaum qhov kev siv nyiaj tsim nyog yog qhov tseem ceeb. Tooj dag, thaum kim dua, muab lub zog zoo dua thiab tiv taus xeb, ua rau nws yog qhov kev xaiv zoo rau cov chaw muaj kev ntxhov siab siab. Kev txiav txim siab ntawm cov ntaub ntawv no nyob ntawm kev sib npaug ntawm cov kev txwv nyiaj txiag nrog cov kev xav tau kev ua tau zoo.
Kev Siv Tau Thiab Kev Xav Txog Kev Tsim Khoom
Kev siv tshuab ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab qhov yooj yim ntawm kev tsim cov qhov dej tsaws tsag. Tooj dag ua rau muaj kev siv tshuab zoo heev vim nws yooj yim khoov thiab qis dua qhov nyuaj. Cov khoom no tso cai rau cov chaw tsim khoom tsim cov qauv tsim nyuaj nrog kev hnav cov cuab yeej tsawg kawg nkaus. Tooj dag, thaum ruaj khov, muaj kev cov nyom ntau dua thaum lub sijhawm ua haujlwm vim nws qhov nyuaj dua thiab lub zog tensile.
Cov lus hauv qab no qhia txog cov qauv tseem ceeb ntawm kev ua tau zoo ntawm tooj dag thiab tooj liab:
| Hom hlau nplaum | Lub zog tensile (ksi) | Lub zog tawm los (ksi) | Kev ntev (%) | Qhov nyuaj (Brinell) | Kev Siv Tau (YB) |
|---|---|---|---|---|---|
| Tooj Liab | 83 | Tsis muaj | 32 | Tsis muaj | 35 |
| Manganese Tooj Liab | 86 | 90 | 45 | 48 | 30 |
| Tooj liab | 90 | 40 | 45 | 21 | 30 |
Tooj liab qhov qhab nia siab dua ua rau nws zoo tagnrho rau cov ntawv thov uas xav tau kev ua haujlwm raug thiab ua haujlwm tau zoo. Tooj liab, txawm tias nws qhov kev ua haujlwm tsis zoo, tseem yog qhov kev xaiv zoo rau kev tsaws cov li qub hauv cov chaw nyuaj vim nws lub zog kho tshuab.
Cov Nqi Kho thiab Lub Neej Siv Tau
Cov nqi kho thiab lub neej siv tau ntev nyob ntawm seb cov khoom siv puas ruaj khov thiab tiv taus kev hnav. Tooj dag yuav tsum tau kho tsawg dua hauv cov chaw tswj hwm, txo cov nuj nqis mus sij hawm ntev. Txawm li cas los xij, hauv cov xwm txheej corrosive lossis kev ntxhov siab siab, tooj dag muaj lub neej ntev dua, them nws cov nqi siab dua thaum pib nrog kev hloov pauv tsawg dua.
Kev xaiv cov khoom siv zoo rau cov li qub tsaws ua kom muaj kev ua tau zoo tshaj plaws thaum txo cov nqi tag nrho. Cov chaw tsim khoom zoo li Yuyao World Fire Fighting Equipment Factory muab qhov tseem ceebcov ntaub ntawv qhia txog cov khoom sivlos xa cov kev daws teeb meem txhim khu kev qha thiab pheej yig rau ntau yam kev siv.
Cov Ntawv Thov thiab Kev Haum Xeeb ntawm Cov Li Qub Tsaws
Cov Li Qub Tsob Nroj: Cov Ntawv Siv Feem Ntau
Cov li qub tsaws tooj dag siv dav hauv cov chaw uas muaj kev ntxhov siab nruab nrab thiab cov xwm txheej tswj tau. Lawv txoj kev tiv thaiv xeb zoo heev thiab kev yooj yim khoov ua rau lawv haum rau cov kab ke tiv thaiv hluav taws hauv tsev, xws li cov tsev lag luam, cov tsev nyob, thiab cov chaw ua haujlwm. Cov li qub no ua haujlwm tau zoo hauv cov kab ke uas muaj kev phom sij rau cov tshuaj lom neeg hnyav lossis huab cua hnyav tsawg heev.
Qhov yooj yim ntawm kev siv tooj dag ua rau cov chaw tsim khoom tsim cov qauv tsim uas nyuaj, ua rau nws zoo tagnrho rau cov qhov dej tswj siab thiab cov qhov dej ncaj. Tsis tas li ntawd, cov qhov dej tsaws tooj dag feem ntau raug xaiv rau lawv qhov zoo nkauj, vim tias lawv tswj tau qhov zoo nkauj dhau sijhawm. Kev sib xyaw ua ke ntawm kev ua haujlwm thiab kev pom zoo ua rau tooj dag yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov uas xav tau kev ua tau zoo thiab kev ywj pheej tsim.
Cov Li Qub Tsaws Tooj Liab: Cov Kev Siv Dav Dav
Cov li qub tsaws tooj liab zoo heev rau hauv cov chaw uas nyuaj rau kev ua haujlwm uas qhov kev ua haujlwm ruaj khov thiab kev tiv thaiv xeb yog qhov tseem ceeb. Lawv cov khoom sib xyaw ua ke ua rau lawv zoo tagnrho rau cov tshuab tiv thaiv hluav taws sab nraum zoov, cov chaw ua haujlwm hauv kev lag luam, thiab cov ntawv thov hauv hiav txwv. Cov li qub no tiv taus kev ntxhov siab ntawm cov khoom siv kho tshuab thiab tiv taus kev hnav, txawm tias nyob rau hauv cov xwm txheej hnyav xws li kev raug dej ntsev lossis qhov kub thiab txias heev.
Lub zog zoo tshaj plaws ntawm tooj dag thiab cov khoom sib txhuam qis ua rau nws tsim nyog rau cov tshuab siab thiab cov ntawv thov hnyav. Piv txwv li, cov qhov dej tsaws tooj dag feem ntau siv hauv cov chaw tsim khoom nkoj, cov chaw ua haujlwm hauv hiav txwv, thiab cov chaw tsim tshuaj lom neeg. Lawv lub peev xwm los nyiaj dhau qhov chaw nyuaj ua kom ntseeg tau tias muaj kev ntseeg siab thiab kev nyab xeeb mus sij hawm ntev hauv cov kab ke tiv thaiv hluav taws kub tseem ceeb.
Xaiv Cov Khoom Siv Zoo Rau Cov Kev Xav Tau Tshwj Xeeb
Xaiv cov khoom siv tsim nyog rau ib qholub qhov tsawsnyob ntawm seb daim ntawv thov xav tau dab tsi thiab tej yam ib puag ncig zoo li cas. Tooj dag yog ib qho kev xaiv zoo heev rau sab hauv tsev lossis tej chaw uas tsis muaj kev ntxhov siab vim nws pheej yig, siv tau yooj yim, thiab tiv taus xeb. Qhov sib txawv, tooj dag zoo dua rau tej chaw uas muaj kev ntxhov siab lossis xeb, qhov twg lub zog thiab kev ruaj khov yog qhov tseem ceeb.
Cov chaw tsim khoom zoo li Yuyao World Fire Fighting Equipment Factorymuaj ntau yam khoom siv rau kev tsaws dej uas tsim los rau ntau yam kev siv. Kev nkag siab txog cov kev xav tau tshwj xeeb ntawm lub kaw lus tiv thaiv hluav taws ua kom muaj kev xaiv cov khoom siv zoo tshaj plaws, ua kom lub valve ua haujlwm tau zoo thiab siv tau ntev.
Tooj dag thiab tooj dag sib txawv hauv kev sib xyaw, kev tiv taus xeb, kev ruaj khov, thiab tus nqi. Tooj dag muaj kev pheej yig thiab kev siv tshuab tau, thaum tooj dag zoo tshaj plaws hauv kev muaj zog thiab kev ywj pheej. Kev xaiv cov khoom siv zoo nyob ntawm cov xwm txheej ib puag ncig thiab cov kev xav tau ntawm kev siv. Kev nkag siab txog cov lus qhia ntawm cov khoom siv ua kom cov qhov dej tsaws tsag ua haujlwm tau zoo thiab siv tau ntev dua hauv cov kab ke tiv thaiv hluav taws.
Cov Lus Nug Feem Ntau
Cov yam tseem ceeb uas yuav tsum xav txog thaum xaiv cov li qub tsaws tooj dag thiab tooj dag yog dab tsi?
Tshuaj xyuas cov xwm txheej ib puag ncig, kev ntxhov siab ntawm lub tshuab, thiab nyiaj txiag. Tooj dag haum rau cov chaw tswj hwm, thaum tooj dag zoo tshaj plaws hauv cov chaw ntxhov siab lossis xeb.
Qhov kev tiv thaiv corrosion txawv li cas ntawm tooj dag thiab tooj dag?
Tooj dag tiv taus xeb hauv qhov xwm txheej nruab nrab. Tooj dag muaj kev tiv taus zoo dua, tshwj xeeb tshaj yog nyob rau hauv dej hiav txwv lossis chaw ua haujlwm, vim nws muaj cov khoom sib xyaw ua ke.
Cov qhov dej tsaws ntawm tooj dag puas pheej yig dua li tooj dag?
Yog, tooj dag feem ntau pheej yig dua vim nws muaj cov khoom sib xyaw thiab kev siv tau yooj yim. Txawm li cas los xij, lub zog ntawm tooj dag yuav txo tau cov nqi hloov pauv mus sij hawm ntev hauv cov ntawv thov uas nyuaj.
Lub sijhawm tshaj tawm: Tsib Hlis-04-2025