Slurry twj tso kua mis tuaj yeem siv dav hauv mines, hluav taws xob fais fab, metallurgy, thee, kev tiv thaiv ib puag ncig thiab lwm yam lag luam los thauj slurry uas muaj cov khoom abrasive.Slurry thauj hauv mines, hydro-ash tshem tawm ntawm cov thee hluav taws xob fais fab nroj tsuag, thee slurry nyob rau hauv hnyav thee ntxhua khaub ncaws thiab hnyav-nruab nrab thauj, dredging ntawm cov dej raws, thiab dredging ntawm cov dej.Hauv kev lag luam tshuaj, qee qhov corrosive slurries uas muaj cov khoom siv lead ua kuj tuaj yeem raug thauj mus los.Lub neej luv luv ntawm lub twj tso kua mis slurry yog qhov tseeb paub zoo.Kev hnav ntawm lub twj tso kua mis slurry feem ntau yog vim qhov corrosion ntawm slurry thiab yaig ntawm cov kua.
Ntau cov kev tshawb fawb tau ua yav dhau los ntawm kev tiv thaiv corrosion ntshiab.Hauv kev tsim khoom tiag tiag, feem ntau cov xim thiab txheej yog siv los tiv thaiv corrosion.Txawm li cas los xij, nyob rau hauv cov nqe lus ntawm corrosion thiab hnav, vim muaj kev txwv kev tshawb fawb ua haujlwm yav dhau los, txheej kev tshawb fawb ua haujlwm tshwj xeeb tsim los tiv thaiv corrosion thiab hnav tsis tshua muaj.Nws yog qhov tseeb tias feem ntau cov ntaub ntawv txheej muaj qee lub peev xwm los tiv thaiv corrosion hnav, tab sis tshwj xeeb corrosion hnav tiv thaiv txheej ua haujlwm zoo dua nyob rau hauv muaj zog corrosion hnav.Cov txheej no yog ib qho hnav-resistant tshuaj tsuag polyurethane txheej.
Qhov zoo ntawm elastomeric polyurethanes nyob rau hauv cheeb tsam no yog ntau pronounced.Nws siab elongation thiab ntau yam hardness;nws hnav tsis kam, biocompatibility thiab ntshav compatibility yog qhov tshwj xeeb.Nyob rau tib lub sijhawm, nws kuj tseem muaj cov roj ua haujlwm zoo, kev cuam tshuam tsis zoo, tsis muaj qhov kub thiab txias, tiv thaiv hluav taws xob thiab qhov hnyav, rwb thaiv tsev kub, rwb thaiv tsev thiab lwm yam khoom.Cov tshuaj tsuag polyurethane muaj cov khoom zoo xws li kev puas tsuaj, dej tsis kam, roj tsis kam, kev co nqus thiab suab nrov txo, siab zog, thiab muaj zog adhesion rau hlau, tsis muaj suab nrov, zoo tus kheej tu nyhuv, txo hnav slurry twj tso kua mis, lub zog txuag thiab ntev. Lub neej ntawm lub twj tso kua mis slurry tuaj yeem txhim kho kev ua haujlwm ntawm cov twj slurry rau qee qhov.Cov khoom siv polyurethane elastomer no yuav luag yog cov khoom siv tsis yog xim hlau uas ua tau raws li qhov yuav tsum tau ua ntawm kuv qhov, thiab tuaj yeem hloov qee cov khoom siv hlau.
Cov khoom no muaj kev hnav tsis kam thiab yaig tsis kam.Dab tsi yog qhov tseem ceeb tshaj yog qhov ua tau zoo tshaj ntawm cov nplaum sib txuam.Tom qab lub sij hawm ntev ntawm kev cuam tshuam thiab kev siv tshuab, nws tseem muaj zog adhesion rau saum npoo ntawm substrate thiab tau ua tiav siv nyob rau hauv qhov chaw ua hauj lwm ntawm slurry twj tso kua mis.Txoj kev loj hlob zeem muag yog dav heev.
Qhov hnav-resistant txheej no muaj qhov loj ntawm Shore hardness.Los ntawm Shaw A45 rau Shore D60.Lub hardness tuaj yeem hloov kho raws li kev ua haujlwm sib txawv, cov ntsiab lus ntawm pawg polar tuaj yeem nce ntxiv, cov ntawv cog lus hydrogen tuaj yeem siv tag nrho los ua kom muaj zog intermolecular, thiab lub sij hawm txheej txheej yuav ua tau zoo.Tsis tas li ntawd, cov khoom no tsis tsuas yog tuaj yeem tiv taus yaig thiab cavitation hnav, tab sis kuj tuaj yeem tiv taus cov kua qaub thiab alkali corrosion nyob rau hauv thaj tsam ntawm 3-11 pH.Cov khoom no tsis tsuas yog tiv thaiv qhov chaw los ntawm dej yaig, cavitation hnav, tab sis kuj tiv thaiv qhov chaw ntawm acid thiab alkali corrosion.Nws yog ib qho khoom siv kho mob ntau yam.Cov khoom siv no yog universally muaj zog thiab dav siv nyob rau hauv ntau yam kev lag luam teb uas yuav tsum tau muab kev tiv thaiv corrosion thiab hnav tiv thaiv, thiab tau ua tiav cov txiaj ntsig zoo.Qhov tseeb tau ua pov thawj tias cov khoom siv no muaj kev sib raug zoo nrog cov substrate, thiab lub neej ntawm txheej txheej feem ntau yog ntau tshaj kaum npaug siab dua li cov khoom siv hlau zoo tib yam.Cov txiaj ntsig kev lag luam tseem ceeb heev.
Shijiazhuang Boda Industrial Pump Co., Ltd
Post lub sij hawm: Lub Xya hli ntuj-13-2021