-
Hmoov Talc rau kev siv tshuaj pleev xim rau tsheb, ntawv, ceramics thiab roj hmab hauv kev lag luam txhim kho kev ua haujlwm ntawm cov khoom siv.
Hmoov Talc yog cov khoom siv ntuj tsim los ntawm kev hloov pauv ntawm cov pob zeb magnesium silicate, muaj cov yam ntxwv tshwj xeeb ntawm lub cev thiab tshuaj uas ua rau nws tsis tseem ceeb hauv ntau yam kev lag luam. Feem ntau nws zoo li hmoov dawb lossis grey zoo nrog cov roj nplaum, mos thiab lubricity zoo heev - cov yam ntxwv uas los ntawm nws cov qauv siv lead ua platy. Cov yam ntxwv tshwj xeeb no ua rau hmoov talc sib xyaw ua ke nrog ntau yam khoom siv, tsis yog tsuas yog sib xyaw zoo xwb tab sis kuj ua rau muaj kev ua tau zoo dua thiab yooj yim rau kev ua cov khoom kawg. Nws cov tshuaj lom neeg tsis muaj zog ua kom muaj kev sib raug zoo nrog feem ntau cov substrates, zam kev tsis xav tau txawm tias siv ntev, thaum lub zog tiv taus cua sov thiab cov khoom rwb thaiv tsev txhim kho nws cov kev siv hauv cov txheej txheem tsim khoom uas xav tau ntau hauv ntau qhov chaw sib txawv.Kev lag luam yas siv hmoov talc ua cov khoom siv los ua kom cov khoom siv thiab cov khoom siv txhawb zog, tshwj xeeb tshaj yog rau cov khoom yas hauv tsheb. Hmoov talc sib xyaw ua ke zoo rau hauv cov thermoplastics xws li polypropylene thiab polyethylene, ua kom zoo dua qhov ruaj khov ntawm qhov ntev los ntawm kev txo qis warpage thiab txo qhov shrinkage thaum lub sijhawm txhaj tshuaj molding thiab extrusion. Nws ua rau cov khoom yas tiv taus cua sov zoo heev, ua rau lawv haum rau cov khoom siv hauv tsheb uas muaj kev ntxhov siab ntau zaus thiab kev hloov pauv kub, xws li dashboards, qhov rooj panels thiab cov khoom hauv qab. Cov qauv platy ntawm hmoov talc ua rau cov yas ruaj khov thiab tiv taus kev cuam tshuam yam tsis ntxiv qhov hnyav ntau dhau, txhawb nqa cov tswv yim sib dua hauv kev tsim tsheb. Qhov kev txo qhov hnyav no pab txo qis kev siv roj thiab txhim kho kev ua haujlwm zoo, ua raws li cov qauv tsim khoom tsheb niaj hnub uas tsom mus rau kev ruaj khov. Tsis tas li ntawd, hmoov talc ua haujlwm ua cov khoom pab ua tiav, txo kev sib txhuam ntawm cov yas yaj thiab cov pwm nto, uas ua rau lub voj voog molding luv dua thiab ua kom cov tuam txhab tsim khoom yas ua haujlwm tau zoo dua.Cov txheej thiab xim tau txais txiaj ntsig zoo los ntawm cov khoom tshwj xeeb ntawm hmoov talc, ua haujlwm ua cov khoom siv mineral ntau yam hauv ob qho tib si kev lag luam thiab kev tsim vaj tsev. Ua cov khoom siv mineral, hmoov talc txhim kho kev ntws xim thiab kev sib npaug, zoo tiv thaiv kev sagging thiab dripping thaum siv rau ntawm cov nto ntsug lossis nkhaus. Nws txhim kho lub zog zais thiab kev nplaum ntawm cov txheej, tsim cov zaj duab xis du, sib npaug thiab ruaj khov uas lo rau ntau yam substrates xws li hlau, ntoo thiab pob zeb. Cov hmoov talc cov khoom me me kuj pab tswj cov xim sib npaug, xyuas kom meej cov xim thiab tiav sib xws thoob plaws txhua yam khoom coated, zam cov kab lossis cov duab tsis sib xws. Tshaj li qhov zoo nkauj, nws ua rau muaj kev tiv thaiv dej, kua qaub thiab kev sib txhuam, ntev lub neej kev pabcuam ntawm cov txheej siv hauv cov qauv kev lag luam, tshuab thiab cov khoom siv sab nraum zoov. Cov primers thiab cov txheej nruab nrab feem ntau suav nrog hmoov talc los ua kom zoo tshaj plaws kev tiv thaiv kev sib xyaw - tiv thaiv cov khoom sau los ntawm kev poob rau hauv qab ntawm cov kaus poom xim - thiab txhim kho kev rov ua dua, tso cai rau cov txheej tom ntej kom sib txuas ruaj khov, tag nrho thaum ua tau raws li cov qauv zoo ntawm kev lag luam tsim khoom.Kev lag luam ntawv tau siv hmoov talc los txhim kho cov khoom zoo thiab ua haujlwm tau zoo ntawm ntau hom ntawv. Hmoov talc ua haujlwm ua tus neeg muab khoom thiab tus neeg pleev xim, ua kom ci ntsa iab, tsis pom tseeb thiab du ntawm daim ntawv - cov yam ntxwv tseem ceeb rau kev luam ntawv thiab ntim ntawv. Thaum siv ua tus neeg muab khoom, nws ua kom puv qhov sib txawv ntawm cov cellulose fibers, tsim cov qauv ntom dua uas ua rau daim ntawv muaj peev xwm nqus cov xim luam ntawv, ua kom muaj xim ci ntsa iab, zoo luam ntawv thiab lub sijhawm qhuav sai dua. Ua tus neeg pleev xim, nws tsim ib txheej nyias nyias, du ntawm cov ntawv, txo cov kua mem nkag thiab txhim kho kev luam ntawv meej. Hmoov talc kuj ua haujlwm ua cov khoom siv tswj cov roj tseem ceeb, nqus cov roj seem thiab ua rau cov pulp tsis txhob sib tsoo, cov menyuam nplaum thiab cov qhov tsis zoo ntawm qhov chaw xws li cov pob lossis cov kab. Hauv cov txheej txheem rov ua dua daim ntawv pov tseg, hmoov talc pab tshem tawm cov xim los ntawm kev rhuav tshem cov kua mem thiab tshem tawm cov khoom tsis huv, txhim kho qhov huv ntawm daim ntawv thiab ua rau daim ntawv rov ua dua zoo. Cov kev siv ntau yam no ua rau hmoov talc ua ib feem tseem ceeb hauv kev tsim ntau yam khoom ntawv, los ntawm cov ntawv luam ntawv ci ntsa iab thiab cov ntaub ntawv ntim khoom mus rau cov ntawv so ntswg thiab cov ntawv corrugated.Kev tsim cov khoom siv ua los ntawm cov av nplaum siv cov hmoov talc los kho cov khoom zoo thiab ua kom cov txheej txheem ua haujlwm zoo dua, txo cov nqi tsim khoom thaum txhim kho kev ua haujlwm ntawm cov khoom kawg. Kev ntxiv cov hmoov talc rau hauv cov khoom siv ua los ntawm cov av nplaum ua rau qhov kub hnyiab tsawg dua ob peb degrees thiab ua kom qhov kub thiab txias txaus thaum lub sijhawm hlawv, uas tsis yog tsuas yog txo cov kev siv zog xwb tab sis kuj txo qhov kev pheej hmoo ntawm cov khoom puas tsuaj lossis tawg. Cov hmoov talc me me ua rau muaj kev pom tseeb, lub zog kho tshuab thiab kev ruaj khov thermal ntawm cov khoom siv ua los ntawm cov av nplaum, ua rau lawv haum rau cov khoom siv hauv kev lag luam thiab cov khoom dai kom zoo nkauj. Cov hmoov talc ntau dua ua rau muaj cov siv lead ua tshwj xeeb xws li enstatite, txhim kho kev tiv thaiv thermal shock thiab cov khoom dielectric - tseem ceeb rau cov khoom siv ua los ntawm cov av nplaum siv hauv hluav taws xob thiab qhov kub thiab txias. Cov hmoov talc kuj ua haujlwm ua cov dej ntws zoo hauv cov glazes, txo qhov kub yaj, txhim kho qhov elasticity ntawm cov glaze thiab tiv thaiv kev vwm. Nws ntxiv qhov tsis pom kev ntuj rau cov glazes matte, tsim cov qauv thiab cov tiav xav tau, thaum ua tau raws li qhov xav tau ntawm cov khoom siv ua los ntawm cov av nplaum rau cov khoom siv hauv kev lag luam thiab cov ntaub ntawv tsim kho xws li cov vuas pem teb thiab cov phab ntsa cladding.Kev lag luam roj hmab siv hmoov talc ntau heev ua cov khoom siv ua kom cov khoom siv thiab cov khoom siv rwb thaiv tsev, ua kom cov khoom ua haujlwm zoo dua thiab ua tau zoo dua. Nws nkag mus rau hauv cov roj hmab kom txhim kho lub zog, tiv taus kua muag thiab lubrication sab hauv, txhim kho kev ruaj khov thiab txo qhov hnav thiab rhuav thaum siv ntev. Qhov kev ua kom lubrication no kuj ua rau kev ua haujlwm yooj yim dua, txo kev siv zog thaum sib tov, calendering thiab molding. Hmoov talc ua rau cov khoom siv hluav taws xob rwb thaiv tsev zoo dua, ua rau nws zoo tagnrho rau kev rwb thaiv tsev cable, gaskets roj hmab thiab lwm yam khoom siv roj hmab siv hauv cov khoom siv hluav taws xob thiab cov kab ke xa hluav taws xob. Nws kuj ua haujlwm ua tus neeg sawv cev tiv thaiv kev nplaum, tsim ib txheej tiv thaiv nyias nyias ntawm cov roj hmab uas tiv thaiv cov khoom kom tsis txhob lo rau pwm, tshuab lossis ib leeg thaum lub sijhawm tsim khoom, khaws cia thiab thauj mus los. Cov kev ntsuas tswj xyuas zoo nruj ua kom cov hmoov talc ua tau raws li qhov huv thiab qhov loj me ntawm cov khoom siv roj hmab, vim tias kev faib cov khoom tsis sib xws tuaj yeem cuam tshuam rau kev ywj pheej thiab kev ua haujlwm ntawm roj hmab, tswj kev sib xws thiab kev ntseeg siab hauv kev ua haujlwm ntawm cov khoom kawg.Kev tsim cov khoom siv tiv thaiv dej muaj cov hmoov talc los txhim kho kev ntseeg tau ntawm cov khoom, kev ruaj khov thiab kev tiv taus huab cua, ua kom tau raws li kev tsim kho thiab kev xav tau kev tiv thaiv dej hauv kev lag luam. Nws tau ntxiv rau hauv cov asphalt membranes, acrylic coatings thiab polyurethane sealants, qhov twg nws txhim kho kev ywj pheej thiab kev ntev thaum tawg - tso cai rau cov khoom siv tiv thaiv dej kom hloov kho rau kev txav mus los ntawm cov qauv yam tsis muaj kev tawg. Hmoov talc ua kom muaj zog sib txuas ntawm cov khoom siv, tsim kom muaj kev thaiv tsis muaj qhov tsis sib xws uas tiv thaiv dej xau thiab ntev lub neej kev pabcuam ntawm cov khoom siv tiv thaiv dej hauv cov chaw nyuaj xws li ru tsev, qab nthab, cov thoob dej hauv kev lag luam thiab cov choj. Nws qhov kev ruaj khov tshuaj lom neeg ua kom cov khoom siv tiv thaiv dej ua haujlwm tas li hauv qab huab cua hnyav, suav nrog kev hloov pauv kub heev, kev raug dej noo ntev, UV hluav taws xob thiab kev yaig tshuaj. Tsis tas li ntawd, hmoov talc txhim kho cov khoom rheological ntawm cov tshuaj tiv thaiv dej, tiv thaiv kev sib sau ua ke ntawm cov khoom hnyav thiab ua kom muaj kev siv sib xws, uas ua rau cov txheej tiv thaiv dej ua haujlwm zoo dua.Kev thov hmoov talc thoob ntiaj teb tseem niaj hnub loj hlob tuaj, vim muaj kev nthuav dav ntawm cov chaw tsim khoom thiab kev nce qib ntawm thev naus laus zis hauv kev ua cov khoom. Qhov ua tau ntau yam thiab kev siv nyiaj tsawg ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov chaw tsim khoom uas xav kom ua tau zoo tshaj plaws ntawm cov khoom thiab ua kom cov khoom tsim tau zoo. Cov qauv zoo thiab cov txheej txheem kuaj xyuas nruj ua kom cov hmoov talc ua tau raws li cov kev cai tshwj xeeb ntawm kev lag luam, tshem tawm cov kuab paug thiab ua kom muaj kev nyab xeeb hauv kev siv. -
Hmoov Talc rau kev tsim cov roj hmab foob kom txhawb kev rov zoo thiab txhim kho kev hnav tsis kam thaum txo cov txheej txheem nias thiab txhim kho kev ruaj khov ntawm cov foob hauv cov ntawv thov siab
Hmoov Talc, yog ib yam khoom siv tau ntau yam thiab tseem ceeb heev, ua lub luag haujlwm tseem ceeb hauv kev tsim cov roj hmab foob, ua rau kev lag luam hloov pauv ntau yam nrog nws cov yam ntxwv zoo kawg nkaus. Hauv thaj chaw ntawm cov foob lag luam, qhov twg kev ntseeg tau thiab kev ruaj khov yog qhov tseem ceeb tshaj plaws, hmoov talc tshwm sim los ua qhov hloov pauv, muab ntau yam txiaj ntsig uas txhim kho kev ua tau zoo thiab lub neej ntev ntawm cov foob roj hmab.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm hmoov talc hauv kev tsim cov roj hmab foob yog nws lub peev xwm tsis muaj qhov sib piv los txhim kho kev rov qab elastic. Hauv kev siv hauv kev lag luam, cov foob raug kev nyuaj siab tas li, suav nrog kev nias rov qab, ncab, thiab khoov. Piv txwv li, cov gaskets qhov rooj hauv cov tsev lag luam raug kev qhib thiab kaw ntau zaus, thaum cov foob cav tsheb muaj kev hloov pauv siab thaum lub sijhawm ua haujlwm. Cov qauv zoo, lamellar ntawm hmoov talc yog qhov tseem ceeb hauv kev daws cov teeb meem no. Ntawm qib microscopic, cov platelets talc sib tshuam nrog cov roj hmab polymers, tsim ib lub network uas ua haujlwm zoo li lub caij nplooj ntoos hlav sab hauv. Qhov kev sib cuam tshuam tshwj xeeb no tso cai rau cov foob kom rov qab tau lawv cov duab qub sai sai tom qab nias, ua kom ntseeg tau tias lawv nruj txawm tias tom qab ntau txhiab lub voj voog.Nyob rau hauv kev tshawb fawb hauv chav kuaj mob tsis ntev los no, cov txheej txheem thaij duab ceev ceev tau siv los ntes cov txheej txheem nyuaj ntawm cov txheej txheem no. Cov duab no qhia meej meej tias cov platelets talc swb thiab rov qab mus rau hauv cov roj hmab matrix thaum lub sijhawm deformation, pab txhawb kev rov qab elastic. Ntxiv mus, kev tshawb fawb dav dav tau piv cov foob uas tsim nrog ntau qib ntawm hmoov talc, qhia tau tias qhov huv siab dua thiab cov khoom me me sib npaug ntau dua ua rau muaj kev txhim kho rov qab elastic ntau dua. Tshwj xeeb, cov foob ua nrog ultrafine, high-purity hmoov talc tau pom tias muaj kev rov qab elastic nce txog li 35%, piv rau cov tsis muaj talc lossis nrog cov talc zoo qis dua. Qhov kev txhim kho tseem ceeb no hauv kev rov qab elastic yog qhov zoo tseem ceeb rau cov ntawv thov uas xav tau kev ntseeg siab mus sij hawm ntev, vim nws pab tiv thaiv kev xau thiab tswj kev ua tiav ntawm lub kaw lus kaw.Kev tiv taus kev hnav yog lwm yam tseem ceeb rau kev ua haujlwm ntawm cov roj hmab foob zoo, tshwj xeeb tshaj yog nyob rau hauv cov chaw ua haujlwm hnyav xws li cov tshuab mining, cov khoom siv thauj khoom hauv kev lag luam, thiab cov khoom siv tsim khoom hnyav. Hauv cov xwm txheej hnyav no, cov foob yeej ib txwm raug kev sib txhuam thiab kev puas tsuaj, uas tuaj yeem ua rau hnav thiab ua tsis tiav ua ntej lub sijhawm. Cov platelet morphology ntawm hmoov talc muab cov nyhuv nws tus kheej-lubricating, ua haujlwm ua cov kabmob me me, embedded hauv cov roj hmab matrix. Thaum lub foob kov cov nplaim mating, cov platelets talc swb tawm tsam ib leeg, txo qhov kub sib txhuam thiab txo qhov kev puas tsuaj ntawm qhov chaw.Ntxiv mus, cov kev tshawb fawb tribological tsis ntev los no tau tshawb nrhiav tob dua txog lub tshuab ua kom lubrication ntawm talc hauv cov roj hmab foob. Cov kev tshawb fawb no tau qhia tias cov tshuaj lom neeg ntawm cov talc ua lub luag haujlwm hauv kev txo qhov kev sib txuas ntawm cov foob thiab cov nplaim sib koom ua ke, ua kom cov nyhuv lubrication zoo dua. Hauv cov ntawv thov hauv ntiaj teb tiag tiag, kev sim hauv thaj chaw tau ua nyob rau hauv ntau qhov kev ua haujlwm tsuas thoob plaws ntiaj teb. Piv txwv li, hauv qhov chaw khawb tooj liab loj hauv South America, cov foob talc-infused hauv cov kab ke siv conveyor siv tau ntev dua li 60% piv rau cov foob txheem. Lub neej ntev no txhais tau tias kev txuag nyiaj ntau hauv cov nqi kho, vim tias yuav tsum muaj tsawg dua qhov hloov foob dhau sijhawm. Tsis tas li ntawd, qhov xwm txheej tshuaj lom neeg inert ntawm hmoov talc tiv thaiv kev puas tsuaj los ntawm cov yam ntxwv ib puag ncig xws li dej noo, tshuaj lom neeg, thiab UV hluav taws xob, ua kom muaj kev ua haujlwm zoo thoob plaws lub neej kev pabcuam ntawm foob. Hauv cov chaw lag luam ntug dej hiav txwv uas cov foob raug rau cov dej ntsev tsuag thiab cov av noo siab, cov foob talc-modified tau tswj hwm lawv qhov kev ncaj ncees zoo dua li cov tsis tau hloov kho, qhia txog cov peev xwm tiv thaiv ntawm cov mineral.Kev sib txuas ntawm cov roj hmab yog ib qho teeb meem uas yuav tsum tau daws hauv kev tsim cov roj hmab, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas cov roj hmab raug rau kev nyuaj siab ntev. Piv txwv ntawm cov ntawv thov no suav nrog cov gaskets tob hauv dej hiav txwv, uas yuav tsum tiv taus qhov siab ntawm dej hiav txwv tob, thiab cov foob dav hlau siab, uas raug rau ntau yam kev nyuaj siab thaum ya dav hlau. Hmoov Talc txo qhov teeb meem ntawm kev sib txuas ntawm cov roj hmab los ntawm ob lub tshuab. Ua ntej, nws txhawb nqa cov qauv sib txuas ntawm cov roj hmab, txhim kho nws txoj kev tiv thaiv kev hloov pauv hauv qab kev nyuaj siab. Cov kev tshawb fawb polymer tsis ntev los no tau siv cov txheej txheem spectroscopy siab heev los tshuaj xyuas cov tshuaj sib txuas hauv cov roj hmab sib xyaw nrog hmoov talc, lees paub qhov kev txhawb nqa ntawm cov kev sib txuas. Qhov thib ob, nws muab kev txhawb nqa lub cev rau cov saw hlau polymer, tiv thaiv kev ncab ntau dhau thiab kev hloov pauv tas mus li ntawm cov khoom siv microstructure.Nyob rau hauv cov xwm txheej hnyav, xws li hauv cov ntawv thov cryogenic uas qhov kub tuaj yeem poob rau -196 ° C, lub luag haujlwm ntawm hmoov talc tseem ceeb dua. Cov chaw kuaj mob tshwj xeeb tau siv los ua qauv rau cov chaw nyob tsis zoo no, thiab cov txiaj ntsig zoo kawg nkaus. Cov ntsaws ruaj ruaj hloov kho talc hauv cov kav dej cryogenic tau tswj hwm qhov kev ruaj khov ntawm ntau dua 98% tom qab 10,000 teev ntawm kev ua haujlwm tas mus li, piv rau kwv yees li 85% rau cov ntsaws ruaj ruaj tsis hloov kho. Los ntawm kev tswj hwm qhov ruaj khov ntawm lub foob hauv qab kev ntxhov siab ntev, hmoov talc ua kom ntseeg tau tias lub foob tseem khaws nws cov txiaj ntsig sealing dhau sijhawm. Qhov kev ua tau zoo tshaj plaws no ua rau cov ntsaws ruaj ruaj roj hmab talc - txhim kho yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov uas kev ntseeg siab thiab kev nyab xeeb tsis tuaj yeem sib tham tau.Hauv cov tshuab ua haujlwm siab, xws li cov thooj voos kheej kheej hydraulic, cov kav dej roj av, thiab cov khoom siv rho roj thiab roj av, kev ruaj khov ntawm lub foob yog qhov tseem ceeb tshaj plaws. Txhua qhov tsis ua haujlwm ntawm lub foob tuaj yeem ua rau muaj kev puas tsuaj loj heev, suav nrog kev xau, kev puas tsuaj rau cov khoom siv, thiab kev phom sij rau ib puag ncig. Hmoov talc ua lub luag haujlwm tseem ceeb hauv kev ua kom lub foob ruaj khov los ntawm kev ua haujlwm ua tus faib kev ntxhov siab. Nws cov qauv tiaj tiaj tso cai rau nws kom faib cov zog siv thoob plaws qhov chaw ntawm lub foob, tiv thaiv kev ntxhov siab hauv zos uas tuaj yeem ua rau tsis ua haujlwm ua ntej lub sijhawm.Cov kev sim ua lej niaj hnub no (CFD) tau dhau los ua qhov nyuaj dua, suav nrog cov yam xws li qhov kub thiab txias thiab cov qauv ntws ntawm cov kua hauv lub foob. Cov kev sim ua kom zoo dua no tau qhia txog qhov kev taw qhia tshwj xeeb ntawm cov khoom me me ntawm talc sib haum nrog cov vectors siab, ua rau lub peev xwm thauj khoom ntawm lub foob nce mus txog 40%. Tsis tas li ntawd, kev tshuaj xyuas cov khoom kawg (FEA) tau siv los kawm txog tus cwj pwm ntawm cov foob nrog hmoov talc nyob rau hauv ntau yam kev thauj khoom. Cov kev nkag siab ua ke los ntawm CFD thiab FEA tau muab kev nkag siab ntau ntxiv txog qhov uas hmoov talc txhim kho kev ua haujlwm ntawm lub foob. Qhov kev thauj khoom zoo dua no ua rau lub foob tiv taus qhov siab dua yam tsis muaj kev cuam tshuam rau nws qhov kev ncaj ncees, uas yog qhov tseem ceeb rau kev ua haujlwm zoo thiab muaj kev nyab xeeb ntawm cov kab ke siab.Lwm qhov zoo ntawm hmoov talc hauv kev tsim cov roj hmab foob yog nws sib xws nrog ntau yam roj hmab sib xyaw. Txawm hais tias nws yog ethylene propylene diene monomer (EPDM), nitrile butadiene roj hmab (NBR), lossis silicone roj hmab, hmoov talc tuaj yeem yooj yim suav nrog rau hauv cov mis kom ua tiav cov yam ntxwv xav tau. Qhov kev hloov pauv no tso cai rau cov chaw tsim khoom kho cov mis roj hmab foob raws li cov kev xav tau ua haujlwm tshwj xeeb ntawm daim ntawv thov.Piv txwv li, hauv kev lag luam ua tshuaj lom neeg, qhov twg cov foob yuav tsum tiv taus ntau yam tshuaj lom neeg, hmoov talc tuaj yeem ua ke nrog NBR los tsim lub foob uas muaj kev tiv taus tshuaj lom neeg zoo heev. Kev sim tshuaj lom neeg hauv chav kuaj tau qhia tias cov foob talc - NBR tuaj yeem tiv taus kev raug rau cov kua qaub thiab alkalis muaj zog rau lub sijhawm ntev yam tsis muaj kev puas tsuaj loj. Hauv kev lag luam aerospace, qhov twg xav tau kev tiv taus kub siab, cov foob roj hmab silicone txhim kho talc - tuaj yeem siv los tiv taus qhov kub thiab txias heev txij li -60 ° C txog 260 ° C yam tsis poob lawv qhov kev ua haujlwm zoo. Qhov tseeb, hauv cov khoom siv cav dav hlau, cov foob no tau ua pov thawj tias tswj tau lawv qhov kev ua tau zoo txawm tias thaum hloov pauv kub sai, ua kom ntseeg tau tias kev ua haujlwm ntawm lub cav txhim khu kev qha.Ntxiv rau nws cov khoom siv kho tshuab thiab tshuaj lom neeg, hmoov talc kuj muaj ntau yam zoo hauv kev tsim cov roj hmab foob. Nws cov khoom me me thiab cov khoom sib kis zoo heev ua kom muaj kev sib kis zoo hauv cov roj hmab matrix, ua rau cov khoom zoo sib xws. Cov thev naus laus zis sib xyaw ua ke, xws li twin-screw extruders, tau raug kho kom zoo dua los siv tag nrho cov yam ntxwv ntawm hmoov talc cov yam ntxwv sib kis, ua kom txhua qhov ntawm cov roj hmab tau txais txiaj ntsig los ntawm nws cov khoom. Hmoov talc kuj txhim kho cov khoom ntws ntawm cov roj hmab thaum lub sijhawm ua, ua rau nws yooj yim dua rau pwm thiab duab rau hauv qhov geometry ntawm lub foob xav tau.Qhov no tsis yog tsuas yog txo lub sijhawm tsim khoom thiab cov nqi xwb tab sis kuj txhim kho qhov ua tau zoo ntawm cov txheej txheem tsim khoom. Piv txwv li, hauv cov kab tsim khoom siv tshuab, kev siv hmoov talc tau ua rau lub sijhawm voj voog sai dua thiab tsawg dua cov khoom tsis lees paub. Ntxiv mus, kev ntxiv hmoov talc kuj tseem tuaj yeem txo qhov kev siv zog ntawm cov khoom siv ua, vim tias yuav tsum muaj zog tsawg dua los ua cov roj hmab uas ntws tau yooj yim dua.Kev siv hmoov talc hauv kev tsim cov roj hmab foob kuj yog ib qho zoo rau ib puag ncig. Talc yog ib qho mineral uas muaj ntau nyob rau hauv lub ntiaj teb lub plhaub. Nws cov extraction thiab kev ua tiav muaj qhov cuam tshuam tsawg rau ib puag ncig piv rau cov khoom siv hluavtaws. Cov tuam txhab mining tau txais kev coj ua kom ruaj khov, xws li kev cog ntoo dua thiab kev rov ua dua av tom qab kev ua haujlwm mining, ntxiv rau qhov txo qis qhov cuam tshuam ntawm ib puag ncig ntawm kev tsim talc. Ntxiv mus, talc - txhim kho roj hmab foob muaj lub neej ntev dua, txo qhov zaus ntawm kev hloov foob thiab txo qis kev tsim khib nyiab.Hauv kev xam pom txog kev lag luam ncig, cov roj hmab foob uas muaj talc thaum kawg ntawm lub neej tuaj yeem rov ua dua tshiab tau zoo dua vim lawv cov khoom ruaj khov. Kev tshawb fawb kuj tseem tab tom ua los tsim cov txheej txheem rov ua dua tshiab uas tuaj yeem rho tawm thiab rov siv cov hmoov talc los ntawm cov foob siv lawm, ntxiv dag zog rau kev ruaj khov ntawm tag nrho cov txheej txheem. Qhov no ua rau cov roj hmab foob uas muaj talc yog qhov kev xaiv ruaj khov rau kev siv hauv kev lag luam, ua raws li kev tsom mus rau kev tiv thaiv ib puag ncig thiab kev txuag cov peev txheej thoob ntiaj teb.Xaus lus, hmoov talc yog ib qho khoom tseem ceeb hauv kev tsim cov roj hmab ua haujlwm siab. Nws cov yam ntxwv tshwj xeeb, suav nrog kev rov qab zoo dua, kev tiv taus hnav, kev sib zog nias, kev faib tawm kev ntxhov siab, thiab kev sib raug zoo nrog ntau yam roj hmab, ua rau nws yog ib qho khoom muaj nqis hauv kev lag luam roj hmab foob. Los ntawm kev siv cov txiaj ntsig ntawm hmoov talc, cov chaw tsim khoom tuaj yeem tsim cov roj hmab foob uas ua tau raws li cov kev cai nruj ntawm cov ntawv thov kev lag luam niaj hnub, ua kom ntseeg tau tias muaj kev ntseeg siab, ruaj khov, thiab kev nyab xeeb. Raws li qhov kev thov rau cov roj hmab ua haujlwm siab txuas ntxiv loj hlob, tsav los ntawm kev nthuav dav ntawm cov lag luam xws li lub zog rov ua dua tshiab, aerospace, thiab roj thiab roj av, lub luag haujlwm ntawm hmoov talc hauv kev lag luam yuav tseem ceeb dua yav tom ntej. Kev tshawb fawb thiab kev txhim kho tas mus li yuav qhib lub peev xwm ntawm hmoov talc, ua rau muaj kev tsim cov kev daws teeb meem roj hmab foob zoo dua thiab ua haujlwm tau zoo dua.
-
Hmoov Talc Qib Kev Lag Luam los ntawm Cov Khoom Siv Tsim Nyog rau Kev Txheej Txheem Yas Roj Hmab thiab Cov Txheej Txheem Tsim Khoom Siv Ceramic
Tuam Tshoj muaj npe nrov rau nws cov khoom muaj talc ntau heev, nrog rau cov chaw tso nyiaj ntau heev nyob thoob plaws thaj chaw xws li Liaoning, Shandong, thiab Guangxi. Cov chaw tso nyiaj no muaj cov txheej txheem tsim sib txawv uas qhia txog keeb kwm geological nyuaj ntawm lub tebchaws.
Liaoning, tshwj xeeb tshaj yog thaj chaw Dashiqiao, yog ib qho ntawm Tuam Tshoj cov chaw tsim khoom loj talc. Ntawm no, cov talc deposits tsim los ntawm kev hloov pauv ntawm dolomite thiab magnesite nyob rau hauv qhov kub thiab txias siab thaum lub sijhawm Proterozoic. Cov kev txav mus los tectonic ntev thiab cov dej num hydrothermal hauv thaj av no tau txhawb nqa recrystallization ntawm cov zaub mov, maj mam ua rau muaj talc qib siab nrog cov qauv du thiab cov qauv lamellar zoo. Cov txheej txheem geological no zoo ib yam li qee cov pob zeb qub tau hloov pauv nyob rau hauv cov xwm txheej hnyav los tsim cov minerals tshwj xeeb.
Hauv Shandong, cov talc hauv cov chaw xws li Yishui thiab Junan feem ntau yog los ntawm kev hloov pauv ntawm cov pob zeb ultramafic. Thaum cov pob zeb no sib cuam tshuam nrog cov kua dej hydrothermal uas muaj silica ntau, ntau yam kev tshuaj lom neeg tau tshwm sim, ua rau muaj cov talc nrog cov xim dawb thiab lubricity zoo, ua rau nws tsim nyog rau kev lag luam xws li ceramics thiab tshuaj pleev ib ce.
Cov pob zeb talc hauv Guangxi, uas muaj ntau nyob rau hauv thaj chaw zoo li Hezhou, tau tsim nyob rau hauv ib puag ncig geological sib txawv. Lawv feem ntau cuam tshuam nrog cov txheej txheem sedimentary - metamorphic, qhov twg cov pob zeb sedimentary uas muaj magnesium - cov khoom nplua nuj tau hloov pauv, ua rau muaj talc nplua nuj.Cov neeg khawb av hauv Suav teb siv ntau txoj kev khawb av qhib thiab av hauv av nyob ntawm qhov tob thiab qhov loj ntawm cov pob zeb. Rau cov pob zeb me me, kev khawb av qhib yog qhov zoo dua vim nws ua haujlwm tau zoo thiab tus nqi qis dua, thaum cov txheej txheem khawb av hauv av siv rau cov peev txheej tob dua. Tom qab rho tawm, Suav teb siv cov txheej txheem ua tiav zoo, suav nrog kev hnav cov hlau, kev sib tsoo zoo, thiab kev hloov kho qhov chaw. Kev hnav cov hlau cais cov hlau ntawm cov hlau gangue, thiab kev sib tsoo zoo ua cov hlau mus rau ntau qib zoo raws li kev thov sib txawv ntawm kev lag luam. Kev hloov kho qhov chaw yog ua los txhim kho kev sib raug zoo ntawm cov hlau nrog lwm cov ntaub ntawv, tshwj xeeb tshaj yog hauv cov ntawv thov siab xws li yas thiab roj hmab. Cov kauj ruam ua tiav no yog tsim los ua kom muaj txiaj ntsig zoo tshaj plaws ntawm kev siv cov hlau, xyuas kom meej tias nws ua tau raws li ntau yam kev xav tau ntawm kev lag luam hauv tsev thiab thoob ntiaj teb, zoo li ntau txoj kev ua tiav txhim kho kev siv tau ntawm lwm cov hlau. Tuam Tshoj cov peev txheej nplua nuj ntawm cov hlau, nrog lawv cov keeb kwm geological tshwj xeeb thiab cov txheej txheem ua tiav siab heev, ua lub luag haujlwm tseem ceeb hauv kev lag luam hlau thoob ntiaj teb.
Hmoov Talc, ib yam khoom siv magnesium silicate uas muaj nyob hauv ntuj, tau dhau los ua ib yam khoom tseem ceeb hauv kev tsim khoom lag luam vim nws muaj cov yam ntxwv ntawm lub cev thiab tshuaj lom neeg sib xyaw ua ke. Peb lub tuam txhab hmoov talc qib kev lag luam tau tsim los ua kom tau raws li ntau yam kev xav tau ntawm cov yas, roj hmab, txheej, thiab cov khoom siv ceramic - plaub qhov chaw uas kev ntseeg tau, kev sib xws, thiab kev ua tau zoo yog qhov tseem ceeb rau kev ua haujlwm zoo.
Hauv kev tsim cov yas, peb cov hmoov talc qib kev lag luam ua haujlwm ua cov khoom siv ntau yam uas ua rau cov khoom zoo thiab kev ua haujlwm zoo dua. Thaum muab sib xyaw rau hauv polypropylene (PP), polyethylene (PE), lossis polyvinyl chloride (PVC) resins, nws txhim kho qhov ruaj khov ntawm qhov ntev los ntawm kev txo qhov ntsws thaum lub sijhawm molding. Qhov no muaj txiaj ntsig zoo rau cov khoom yas xws li cov khoom siv sab hauv tsheb, cov thawv hluav taws xob, thiab cov khoom siv hauv tsev, qhov twg qhov loj me kom raug ua kom haum thiab ua haujlwm tau zoo. Peb cov hmoov talc cov qauv lamellar kuj ua rau muaj kev ruaj khov yam tsis cuam tshuam rau kev cuam tshuam, tso cai rau cov chaw tsim khoom kom txo cov khoom tuab thaum tswj hwm kev ua haujlwm zoo - txiav cov nqi khoom siv raw los ntawm 10-15%. Nrog rau cov kev xaiv loj ntawm cov khoom me me txij li 200 txog 1250 mesh, peb ua haujlwm rau ntau txoj hauv kev ua cov yas, los ntawm kev txhaj tshuaj molding mus rau extrusion, ua kom muaj kev sib kis zoo thiab zam kev puas tsuaj xws li streaking lossis clumping.Rau kev tsim roj hmab, peb cov hmoov talc ua haujlwm ua tus pab ua thiab tus neeg sawv cev txhawb zog. Nws txo qhov viscosity ntawm cov roj hmab sib xyaw, ua rau kev sib tov thiab extrusion du thiab siv hluav taws xob ntau dua. Hauv cov roj hmab ntuj thiab cov roj hmab hluavtaws (xws li roj hmab nitrile butadiene), nws ua rau muaj kev tiv thaiv kev tsim kua muag thiab kev tiv thaiv kev sib txhuam, ua kom lub neej ntawm cov khoom roj hmab xws li cov yeeb nkab kev lag luam, cov siv conveyor, thiab gaskets ntev dua. Ib lub chaw tsim roj hmab hauv Southeast Asia tau tshaj tawm tias kev koom ua ke peb cov hmoov talc rau hauv lawv cov qauv hose ua rau cov khoom ruaj khov dua 25%, txo qhov zaus hloov pauv rau lawv cov neeg siv khoom. Tsis tas li ntawd, peb cov hmoov talc cov tshuaj inertness ua kom muaj kev sib raug zoo nrog cov neeg sawv cev vulcanizing thiab antioxidants, tiv thaiv cov tshuaj tiv thaiv tsis xav tau uas yuav ua rau cov roj hmab ua haujlwm tsis zoo dhau sijhawm.Hauv kev lag luam txheej, peb cov hmoov talc qib kev lag luam ua haujlwm ua tus neeg sawv cev txuas ntxiv thiab tus neeg sawv cev matting. Nws txhim kho qhov opacity ntawm cov xim thiab cov txheej, tso cai rau cov neeg tsim cov qauv kom txo cov nqi kim titanium dioxide (TiO₂) thaum tswj kev npog - txo cov nqi tsim los ntawm 8-12%. Cov khoom lamellar tsim ib qho thaiv hauv zaj duab xis txheej, ua kom muaj kev tiv thaiv dej, tshuaj lom neeg, thiab UV hluav taws xob. Qhov no ua rau peb cov hmoov talc zoo tagnrho rau cov txheej txheem kev lag luam siv rau cov qauv hlau, tshuab, thiab phab ntsa sab nraud, qhov twg kev tiv taus huab cua ntev yog qhov tseem ceeb. Ib tus neeg muag khoom txheej European pom tias kev siv peb cov hmoov talc hauv lawv cov qauv enamel kev lag luam ua rau lub neej kev pabcuam ntawm txheej ntau dua 30% hauv qhov chaw sab nraum zoov hnyav.Cov chaw tsim khoom siv av nplaum vam khom peb cov hmoov talc los ua kom cov txheej txheem tsim khoom zoo dua thiab txhim kho cov khoom zoo. Thaum ntxiv rau cov av nplaum av nplaum, nws txo qhov kub ntawm kev hlawv los ntawm 50–100 ° C, txo kev siv hluav taws xob thiab txo qhov kev ntxhov siab thermal ntawm cov khoom tiav. Qhov no txo qhov kev pheej hmoo ntawm kev tawg thiab txhim kho cov txiaj ntsig - qhov tseem ceeb rau cov vuas ceramic, cov khoom siv huv, thiab cov khoom siv hluav taws xob. Peb cov hmoov talc kuj ua rau cov av nplaum dawb thiab ci ntsa iab, tshem tawm qhov xav tau cov neeg sawv cev dawb ntxiv thiab tsim kom muaj qhov tiav zoo nkauj dua.Kev tswj xyuas zoo yog muab tso rau hauv txhua theem ntawm peb cov txheej txheem tsim khoom. Peb tau txais cov talc nyoos los ntawm cov chaw tso nyiaj siab hauv Liaoning thiab Shandong, Suav teb—cov cheeb tsam paub zoo rau talc nrog cov hlau tsawg, calcium, thiab cov hlau hnyav. Cov hlau nyoos raug tsoo, sib tsoo, thiab ntxuav los ntawm kev sib cais sib nqus thiab ua npuas dej kom tshem tawm cov khoom tsis huv. Txhua pawg raug kuaj siv cov tshuab ntsuas qhov loj me ntawm cov khoom me me, X-ray fluorescence (XRF) spectrometers, thiab cov ntsuas dawb kom ntseeg tau tias ua raws li cov qauv kev lag luam. Peb cov hmoov talc qib kev lag luam ua tau raws li ISO 9001, REACH, thiab RoHS daim ntawv pov thawj, kom ntseeg tau tias nws ua raws li cov cai thoob ntiaj teb.Kev ntseeg siab ntawm kev xa khoom yog ib feem tseem ceeb ntawm peb cov kev pabcuam. Peb khaws cov khoom muag hauv cov tsev khaws khoom thoob plaws Suav teb, kom ntseeg tau tias lub sijhawm xa khoom yog 7-10 hnub rau feem ntau cov xaj. Cov khoom raug ntim rau hauv 25kg kraft hnab lossis 1000kg hnab loj, nrog rau kev xaiv rau kev sau npe tshwj xeeb. Peb ua txhua daim ntawv pov thawj xa khoom tawm, suav nrog daim ntawv pov thawj ntawm kev tshuaj xyuas (COA) thiab cov ntawv tshaj tawm kev lis kev cai, ua kom yooj yim rau cov txheej txheem xa khoom rau cov neeg siv khoom hauv Tebchaws Europe, North America, thiab Southeast Asia.Peb cov hmoov talc qib kev lag luam tau tsom mus rau qhov zoo, kev hloov kho kom haum rau koj tus kheej, thiab kev pabcuam rau cov neeg siv khoom, thiab nws tau dhau los ua ib qho kev xaiv uas cov tuam txhab tsim khoom thoob ntiaj teb ntseeg siab. Nws ua tau zoo tas li, txuag tau nyiaj, thiab ua haujlwm tau zoo - ua rau nws yog ib yam khoom tseem ceeb hauv cov txheej txheem kev lag luam niaj hnub no. -
Cov hmoov talc dawb huv rau kev tsim kho kev lag luam tshuaj pleev ib ce kev lag luam tshuab kev lag luam
Hmoov Talc, uas yog hu ua hydrous magnesium silicate nrog cov mis Mg₃Si₄O₁₀(OH)₂, tau ntev los ua qhov tseem ceeb hauv ntau qhov chaw. Cov hmoov mos mos thiab dawb no sawv tawm vim nws cov yam ntxwv zoo heev.
Hauv kev siv tshuab, nws cov roj nplua nyeem zoo kawg nkaus ua rau kev txav mus los yooj yim. Hauv cov tshuaj pleev ib ce, nws yog ib qho tseem ceeb. Piv txwv li, nws pom muaj nyob rau hauv cov hmoov menyuam yaus, pab kom daim tawv nqaij qhuav thiab xis nyob. Nws kuj tseem muaj nyob rau hauv blush thiab foundation, nqus cov roj ntau dhau.Hauv kev lag luam ntawv, hmoov talc ua rau kom ci ntsa iab thiab du, ua rau luam ntawv tau zoo dua. Hauv kev tsim cov yas, nws ua rau cov yas resins ntws zoo dua thaum lub sijhawm ua tiav thiab ntxiv kev ruaj khov rau cov khoom tiav. -
Cov hmoov talcum dawb huv ntshiab ua ntawv ua lag luam pleev xim rau kev lag luam yas
Hmoov talcum yog ua los ntawm kev sib tsoo talc nrog Raymond zeb thiab lwm yam kev sib tsoo siab.
Cov Nyhuv: Cov khoom siv pleev kom zoo nkauj. cov khoom siv ntxiv. Siv ua tus neeg sawv cev tiv thaiv cua sov rau zaj duab xis ua liaj ua teb.
-
Huabang Talc hmoov dawb 1000-3000 mesh superfine cosmetic qib siab dawb bulk talc hmoov rau roj hmab
Hmoov talcum yog ua los ntawm kev sib tsoo talc nrog Raymond zeb thiab lwm yam kev sib tsoo siab.
Cov Nyhuv: Cov khoom siv pleev kom zoo nkauj. cov khoom siv ntxiv. Siv ua tus neeg sawv cev tiv thaiv cua sov rau zaj duab xis ua liaj ua teb.
-
Huabang 325-1250 mesh Dawb Cosmetic Talc Hmoov, Cov Khoom Siv Qib Talcum Siab Dawb Talc Hmoov
Hmoov talcum yog ua los ntawm kev sib tsoo talc nrog Raymond zeb thiab lwm yam kev sib tsoo siab.
Cov Nyhuv: Cov khoom siv pleev kom zoo nkauj. cov khoom siv ntxiv. Siv ua tus neeg sawv cev tiv thaiv cua sov rau zaj duab xis ua liaj ua teb.
-
Talc hmoov dawb 3000 mesh super zoo nkauj qib siab dawb ntau talc hmoov rau xim
Hmoov talcum yog ua los ntawm kev sib tsoo talc nrog Raymond zeb thiab lwm yam kev sib tsoo siab.
Cov Nyhuv: Cov khoom siv pleev kom zoo nkauj. cov khoom siv ntxiv. Siv ua tus neeg sawv cev tiv thaiv cua sov rau zaj duab xis ua liaj ua teb.
-
Hmoov Talc zoo nkauj qib menyuam yaus hmoov talcum superfine rau kev muag khoom
Hmoov talcum yog ua los ntawm kev sib tsoo talc nrog Raymond zeb thiab lwm yam kev sib tsoo siab.
Cov Nyhuv: Cov khoom siv pleev kom zoo nkauj. cov khoom siv ntxiv. Siv ua tus neeg sawv cev tiv thaiv cua sov rau zaj duab xis ua liaj ua teb.
-
Hmoov Talc Tshuaj Pleev Xim, Cov Khoom Siv Talcum Qib Siab Dawb Talc Hmoov
Hmoov talcum yog ua los ntawm kev sib tsoo talc nrog Raymond zeb thiab lwm yam kev sib tsoo siab.
Cov Nyhuv: Cov khoom siv pleev kom zoo nkauj. cov khoom siv ntxiv. Siv ua tus neeg sawv cev tiv thaiv cua sov rau zaj duab xis ua liaj ua teb.
-
Hmoov Talc 1250mesh, Talc Hmoov Tsum Khoom Siab Purity Talcum Hmoov rau Cosmetic
Hmoov talcum yog ua los ntawm kev sib tsoo talc nrog Raymond zeb thiab lwm yam kev sib tsoo siab.
Cov Nyhuv: Cov khoom siv pleev kom zoo nkauj. cov khoom siv ntxiv. Siv ua tus neeg sawv cev tiv thaiv cua sov rau zaj duab xis ua liaj ua teb.
-
Industrail qib talc hmoov xim qib talcum hmoov, 1250mesh talc hmoov, ntshiab dawb talc
Hmoov talcum yog ua los ntawm kev sib tsoo talc nrog Raymond zeb thiab lwm yam kev sib tsoo siab.
Cov Nyhuv: Cov khoom siv pleev kom zoo nkauj. cov khoom siv ntxiv. Siv ua tus neeg sawv cev tiv thaiv cua sov rau zaj duab xis ua liaj ua teb.
