Thaum xaiv cov kev lag luam pom kev daws teeb meem, tshwj xeeb tshaj yog rau kev xav tau cov tshuaj ib puag ncig uas muaj cov kuab tshuaj corrosive, muaj zog acids, muaj zog alkalis, lossis siab -kub txheej txheem ntws, cov khoom xaiv ncaj qha txiav txim siab qhov kev ntseeg siab, kev nyab xeeb, thiab tag nrho cov nqi ntawm cov tswv cuab. Ib txwm siv cov lim dej polymer feem ntau suav tias yog thawj zaug vim lawv cov nqi pib qis dua, tab sis lawv cov kev txwv tau tshwm sim sai sai nyob rau hauv cov xwm txheej hnyav, ua rau muaj kev hloov pauv tsis tu ncua, tsis tau npaj tseg, thiab txawm tias cov txheej txheem sib kis. Nyob rau hauv sib piv, hlau hmoov sintered lim, sawv cev los ntawm 316L stainless hlau, muab unparalleled ntev -lub sij hawm kev ua tau zoo vim lub intrinsic zog ntawm cov khoom.
TOPTITECH muab kev sib piv ncaj qha hla tsib qhov tseem ceeb, qhia tias yog vim li cas sintered hlau lim yog qhov kev ntseeg siab dua thiab kev lag luam suab ntev ntev -kev xaiv nyob rau hauv ib puag ncig hnyav tshuaj.
Advantage 1: Superior Chemical Compatibility thiab Material Stability
Qhov tseem ceeb sib txawv ntawm cov hlau thiab cov lim dej polymer hais txog cov tshuaj sib xyaw ua ke yog nyob rau hauv cov khoom siv inertness. High-zoo 316L stainless hlau sintered lim qhia tau zoo heev corrosion kuj thoob plaws pH ntau yam (feem ntau 1-14). Qhov kev tiv thaiv no yog tsim los ntawm ib txwm tsim, ntom chromium oxide passivation txheej ntawm qhov chaw, uas zoo tiv thaiv los ntawm ntau cov kua qaub, alkalis, thiab chlorides. Txawm hais tias lub sijhawm ua haujlwm ntev, cov ntxaij lim dej hlau tsis tuaj yeem tawm los yog degrade, ua kom cov dej huv ntawm cov txheej txheem. Qhov no yog qhov tseem ceeb rau cov kws kho mob, tshuaj zoo, thiab kev tsim khoom siv hluav taws xob.
Nyob rau hauv sib piv, cov tshuaj compatibility ntawm polymer lim (xws li, polypropylene PP, Nylon, PTFE) yog heev xaiv thiab txwv. Ntau cov polymers tau o, softening, embrittlement, los yog tshuaj degradation thaum raug cov organic solvents, oxidizing agents, los yog muaj zog acids / bases. Qhov no tsis tsuas yog hloov pauv qhov pore loj ntawm lub lim, ua rau poob ntawm qhov pom tseeb, tab sis kuj tuaj yeem tso cov tshuaj (leachables) los ntawm cov khoom lim nws tus kheej mus rau hauv cov txheej txheem kwj, ua rau cov kab mob kis mus ntxiv. Piv txwv li, thaum PTFE muaj kev tiv thaiv corrosion zoo heev, nws cov neeg kho tshuab lub zog txo qis ntawm qhov kub thiab txias, thiab nws kim heev.
Txheej txheem cej luam ntawm Tshuaj Compatibility
| Nruab nrab | 316L Sintered Hlau Lim | Hom Polymer Lim | Qhov txawv tseem ceeb |
| Strong Acids (piv txwv li, HCl, H₂SO₄) | Zoo heev rau Zoo (nyob ntawm qhov concentration & kub) | Poor to Selectively Compatible | Hlau cia siab rau passivation txheej; Polymers tuaj yeem oxidize lossis hydrolyze. |
| Muaj zog Alkalis | Zoo heev | Fair to Poor (xws li Nylon yog pluag) | Hlau muaj kev tiv thaiv zoo; qee cov polymers (xws li, polyesters) tuaj yeem saponify / degrade. |
| Organic Solvents | Tau tshaj txhua yam | Kev xaiv heev; qee qhov ua rau o | Hlau yog inorganic thiab inert; polymers muaj kev pheej hmoo o thiab leaching. |
| Cov tshuaj chloride | Zoo (nco ntsoov pitting tej yam kev mob) | Feem ntau cov neeg pluag | 316L resists pitting vim Mo cov ntsiab lus; polymers raug kev puas tsuaj permeation. |
Qhov txiaj ntsig 2: Qhov Zoo Tshaj Plaws Siab -Tsub Tolerance thiab Thermal Stability
Qhov kub thiab txias yog qhov tseem ceeb uas ua kom muaj tshuaj lom neeg thiab cuam tshuam rau kev ua haujlwm ntawm cov khoom. sintered hlau lim tau zoo nyob rau hauv qhov no hais txog. 316L stainless hlau sintered cov ntxaij lim dej tuaj yeem tiv taus qhov kub thiab txias mus txog li 480℃(900℃F) rau ncua sij hawm, thiab txawm tias kub dua luv luv hauv qee qhov kev txo qis. Qhov no tso cai rau siv ncaj qha rau hauv cov kuab tshuaj kub pom, siab -kub polymer yaj pom, los yog reactor tshav kub hloov cov kua ncig yam tsis muaj kev ua haujlwm degradation.
Hauv qhov tsis sib xws, feem ntau cov lim dej polymer muaj qhov ntsuas kub ua haujlwm siab feem ntau qis dua 150 degree. Qee cov ntaub ntawv, zoo li tus qauv polypropylene (PP), tuaj yeem muag, deform, thiab poob lub zog ntau dua 80-100 degree. Raws li qhov kub thiab txias los yog dhau ntawm lawv cov iav hloov pauv, cov qauv pore ntawm cov lim dej polymer tuaj yeem hloov pauv tsis tau, ua rau pom qhov ntsuas drift thiab ua rau lawv muaj kev cuam tshuam rau cov txheej txheem rupture nyob rau hauv thermal stress.
