Talc mwala ndi wapadera katundu

Mwa mchere ndi Nthawi zambiri katundu wotere ali mu ankafuna mkulu osati mafakitale komanso mankhwala ndi zodzoladzola. Zina mwa talc. mwala uwu Sizikudziwika ngati mchere, ndipo monga ufa ana.

Oddly, koma m'chilengedwe mwina wachiwiri ambiri pambuyo miyala khwatsi. Tikumbukenso kuti talcum - mwala kokha mitundu coarse-grained, zambiri amatchedwa soapstone.

mtundu zimasiyanasiyana wobiriwira woyera woyera, kaya akhale a mtundu ziri lodziwika kwa ngale Sheen ake. Iye ndi zofewa kwambiri kuti achilitse amapereka kuganiza za lubricity. Malinga ndi Mohs kuuma ndi ayesedwa pamene "1" (osachepera).

Monga tikudziwa izo - wochuluka coarse ufa, wotchedwa "talc". mwala uwu inafalitsidwa chifukwa zikhalidwe za mapangidwe nthaka yake mwachilungamo muyezo.

Kulankhula mwasayansi, dzina lake mankhwala - wowawasa mankhwala enaake a metasilicate H2Mg3 (SiO3) 4. Crystallization kukuchitika rhombic kapena monoclinic mtundu. Mu chikhalidwe, zopezeka mu tsamba woboola pakati kapena granular dongosolo.

Kuyambira mfundo Geological maganizo, talc - ndi mchere sekondale apangidwa pambuyo mankhwala kusintha bezalyuminievyh mankhwala enaake a silicates. Nthawi zambiri chotero metamorphosis amaloŵamo amphibole kapena pyroxene.

Nthawi zambiri, mu maonekedwe zingakhale amasokonezeka ndi "kholo", monga mwathunthu akuzisunga crystalline dongosolo ake, anasiyana yekha mankhwala awo zikuchokera.

The talc womwewo, amene chithunzi ali mu pepala, ndi ofunika chifukwa cha mtundu wake: ndi oyera ndi, makamaka kufunika zakuthupi. Tikumbukenso kuti makampani likukhudza miniti yokha talc, wabwino kwambiri khalidwe pansi.

Ine sindikuganiza kuti ngati zinthu izi zimapezeka mu chikhalidwe yekha mu mtundu umodzi. Pali zingapo mitundu ake osiyana kwambiri mankhwala awo zikuchokera ndi katundu thupi:

• Minnesotaite (muli 50% chitsulo).
• Villemseit (zikuphatikizapo faifi tambala).
• Steatite (amene mChipangano Wen), yodziwika ndi wandiweyani kwambiri ndi olimba dongosolo.
• Malaga. Mosiyana ndi kuloŵedwa m'malo, ndi CHIKWANGWANI chabwino kwambiri.
• Noble talc: abwino, momwe wolemekezeka woyera.

Ambiri a talc ncho mu United States. M'mavoliyumu lalikulu mtundu umenewu anayamba kupanga mu Brazil, South Korea, Japan ndi Russia.

Kodi inuyo ntchito talcum ufa? mwala uwu wakhala ntchito monga ufa, "spacers" pakati mphira zinthu, monga filler, ndipo chimagwiritsidwa ntchito ndi zonunkhira kulenga mitundu yatsopano ya ufa.

Only ndi ambiri abwino kwa chilengedwe cha zitsanzo zabwino koposa za mtundu umenewu zodzoladzola. Mwa njira, ntchito kokha mwa 'choko' akatswiri tailors, ozikidwa pa onse a talc chomwecho. makampani zabwino mitundu yake ntchito kupanga insulators magetsi.

Mwa njira, mochuluka bwanji ndi talc? Pakali pano, mtengo ndi za 1000 Roubaud pa kilogalamu wa mkulu khalidwe milled zakuthupi.