Cenospheres

Introduction

Beads pov, uas kuj hu ua fly ash hollow spheres, yog ib qho khoom nyiaj mov, ib qho khoom txwv dej uas tuaj yeem pov ntawm dej.

Nyob ib hauv kev tsim los ntawm silica thiab alumina, cov kab no muaj qhov chaw sib tshuam zoo txaus siab, ua rau lawv raug siv hauv ntau yam kev siv hluav taws xob. Qhov kev pab pawg no piav txog cov cuab yeej, kev siv, thiab lub tseem ceeb ntawm cov kab nyiag, piav qhia txog qhov tseem ceeb ntawm lawv hauv kev lag luam saum npoo ntuj no.

Nkws thiab noj kawg

Cov kab nyiag muaj qhov sib txawv ntawm lub color gray-white, qhov chaw luv luv thiab luv luv, thiab lub zog me me. Nyob rau hauv qhov zog ntawm 250 mus rau 450 kg/m³ thiab qhov ntev ntawm ib puag ncig 0.5 mus rau 0.08 mm, cov kab no muaj qhov chaw sib tshuam zoo. Lawv cov chaw kaw thiab smooth tsawg kawg qhov sib txawv ntawm qhov kub, thaum li qhov kub tsis zoo (0.08-0.1 W/m·K nyob rau hauv lub teeb liab) ua rau lawv yog ib qho tseem ceeb rau kev siv hluav taws xob kub.

Txoj kev ntsuab lus, roj teeb tuaj yeem muaj peev xwm tshaj tshav (50-65%) thiab alumina (25-35%), muaj qee yam oxides me me. Tshav kub tseem ceeb tshaj plaws (1725°C) thiab alumina (2050°C) pab tiv thaiv roj teeb kom tsis txom nyuj nyuj heev, tiv thaiv kub txog 1600-1800°C. Qhov kev ua no, ntxiv rau lawv txoj hniav siab thiab kev tiv thaiv kub, ua rau roj teeb tuaj yeem muaj peev xwm tshaj yuav zoo rau kev siv hauv kev tiv thaiv kub.

Kev siv nyob rau hauv ntau hom chaw tsim khoom

• Cheeb tsam tiv thaiv kub : Cov kab ntsuab sib txawv tau siv ntau hauv kev tsim kho cov khw kev cia tshaj tawg qhov chaw, xws li sintered thiab tsis tau siv tshuab kuaj, cast insulation risers, thiab pipeline insulation shells. Qhov siab ntawm lawv refractoriness thiab kev cia tshaj tawg qhov chaw ua rau lawv raug rau kev siv rau lining furnaces, kilns, thiab lwm yam chaw sib txawv uas muaj qhov rooj kub. Tom qab ntawd, lawv tau siv hauv kev tsim kho cov khw cia tshaj tawg qhov chaw, cov khw cia tshaj tawg qhov chaw, thiab composite insulation dry powder, muab kev cia tshaj tawg qhov chaw meej khi tes hauv ntau yam chaw ua haujlwm.
• Tsev tsim kho : Hauv cheeb tsam tsim kho, cov kab ntsuab sib txawv muaj kev siv nyob rau thermal insulation materials hauv kev lag luam ntoo, roof waterproofing, thiab thermal insulation coatings. Qhov yooj yav thiab zoo tshaj plaws ntawm lawv thermal insulation ua rau lawv raug rau kev kom meej dua hauv kev siv zog hauv tsev neeg. Tom qab ntawd, lawv tau siv hauv kev tsim kho kev nruab nrab thiab modified asphalt production, pab txhim khu kev nyiam thiab kev ua haujlwm ntawm kev nruab nrab.
• Tsoom Hlau Petroleum : Tsoom hlau petroleum siv kab ntxwv ceev rau kev sau tshuab tsim tsev rau cheebtsheb, roj tshuab kaw roj kom tsis tuaj yeem korrosion thiab roj tshuab kaw roj kom ncua sov, thiab roj tshuab kho roj nrog lub tshuab sau. Lub zog sov siab thiab kev tshuab kom sov tsis txhob mus cuam tshuam tau rau kev pabcuam tshuab thiab khoom siv. Tom qab ntawd, lawv kuj siv rau hauv cheebtsheb roj nyob hauv ntoo av thiab hauv tshuab nyob hauv ntoo av, muab kev pabcuam tshuab thiab kev tshuab kom sov.
• Daim Ntawv Tshuab : Kab ntxwv ceev siv ua hom siv rau hauv plastik thiab ua daim tshuab rau sov siab thiab chaw tshuab siab, siv cov zog tshuab sov zoo thiab zog tshuab hluav taws xob zoo. Qhov zog tiv thaiv sov thiab tiv thaiv hluav taws xob tau rau kev siv hauv tib neeg hluav taws xob thiab tshuab hluav taws xob.
• Tsoom Hlau Sau : Nyob hauv cheeb tsam tshuab ntxuav, cov menyuam kawg zoo li siv nyiaj uas siv hauv txhua hom ntawm tshuab ntxuav, nkhaus, kev sib txig, thiab cov tshuab ntxuav siv txoj hauv kev. Qhov me me ntawm lub particle thiab qhov ntev tshaj plaws ntawm qhov chaw nruj heev tuaj yeem pab txhim kho qhov smoothness, qhov hardness, thiab qhov thermal insulation ntawm qhov tshuab ntxuav. Tom qab ntawd, lawv kuj siv hauv tshuab ntxuav tsha tsha tshaj tshaj, tshuab ntxuav kab ntsug thiab sab nraum, thiab tshuab ntxuav thermal insulation, pab tiv thaiv tsaus ntxoov thiab tsha.
• Aerospace thiab Kev Pab Txhawb Space : Cheeb tsam aerospace siv cov menyuam kawg zoo li siv nyiaj hauv kev tsim kho satellite, rocket, thiab spacecraft surface composite materials. Qhov yooj yim, qhov siab refractoriness, thiab qhov thermal insulation properties ua rau lawv xav kom tiv thaiv spacecraft los ntawm qhov tsaus ntxoov tshaj plaws uas pom nyob hauv space. Tom qab ntawd, lawv kuj siv hauv kev lag luam ntoo, rooj, thiab submarines nyob hauv ntej, pab tiv thaiv thiab tiv thaiv tsaus ntxoov.
• Cheeb Tsam Plastic : Nyob hauv cheeb tsam looj ceeb, cov menyuam kab tuaj siv los ua hom noj nyob hauv ntau yam khoom looj ceeb, xws li kev pabcuam rau rooj moos, rooj pov, thiab rooj tog ntawm tsev neeg. Qhov nyiaj zoo thiab qhov tshwm sim zoo tshaj plaws ntawm kev sib tshuam kub txo rau kev siv kho mob thiab kev lag luaj txaus siab ntawm khoom looj ceeb. Tom qab ntawd, lawv twb siv hauv kev tsim kho tshwj xeeb, chav nta, thiab lwm yam khoom, muab kev txhim kho thiab txo nqi.
• Khoom FRP : Cov menyuam kab tuaj pom kev siv hauv kev tsim kho ntau yam khoom sib xyaw (FRP), xws li marbles tshwj xeeb, neeg hlav FRP, thiab lwm yam khoom lag luaj. Qhov nyiaj zoo thiab qhov tshwm sim zoo tshaj plaws ntawm kev sib tshuam kub yog qhov tsim nyog rau kev txhim kho kev ua haujlwm thiab qhov xwbkwm ntawm khoom FRP.
• Khoom siv nruab : Nyob hauv cheeb tsam no tsev nyiaj siv khoom lag luam, cov menyuam kab ntsug ncig siv los ua kev ceeb toom rau qhov chaw pib tshuab thiab khoom siv tshuab. Qhov yooj yim thiab qhov zoo txaus siab ntawm kev tiv thaiv kub tiv thaiv tshuab kom tsis txhob muaj kua lossis phom sij nyob thaum sib nrawm thiab khiav dej.

Kev Nyob Zeem Zeem

Qhov chaw nyiaj loj ntawm cov menyuam kab ntsug ncig muaj feem ntau los ntawm ntau yam, xws li kev xav tau los ntawm cheeb tsam siv khoom, kev muaj khoom siv, thiab kos pheej nyiaj siv. Cov cheeb tsam tsev rog, neeg tsav tsheb, thiab kev nyiaj noj hauv av yog qhov tseem ceeb tshaj plaws uas tiv thaiv kev xav tau, vim lawv xav tau khoom siv zoo txaus siab rau kev tiv thaiv kub thiab roj teeb rau ntau yam kev siv. Kev xav tau txog kev siv nyiaj zoo thiab kev nyab xeebก็ tseem pib cuam tshuam mus rau qhov chaw nyiaj no, vim tias cov menyuam kab ntsug ncig muaj kev daws teeb meem zoo rau kev siv nyiaj.

Txawm li cas los, lub chaw tsim khoom muaj kev txwv txwm li cas li raw material cov nqi thiab kev sib thauj rau tshuab tshiab. Thaum muaj kev nyab xeeb, cov neeg tsim khoom yuav tsum tswj hauv kev tsim khoom tshiab uas muaj zog siab dua thiab rov qhia kom zoo dua. Tom qab ntawd, kev pab cuam tshiab hauv kev tsim khoom yuav pab txhim kho lub khoom thiab kom meej pem.

Yav tom ntej

Qhov kev tseem ceeb tom ntej ntawm lub chaw tsim khoom floating beads zoo ib yam li muaj kev tseem ceeb. Qhov kev xav tau ntau dua ntawm cov khoom siv sib txawv zoo dua hauv kev siv hluv hluv, petroleum, thiab aerospace yuav pab txhim kho lub chaw tsim khoom. Tom qab ntawd, kev tsim khoom tshiab, tshwj tsis yog hauv kev siv hluv hluv thiab electronics, yuav pab tsim kev tseem ceeb tshiab rau cov neeg tsim khoom floating bead.

Kev nyob ruaj khov yuav ua tus nuj nqi tseem ceeb, thiab cov khaiv cuab yuav siv kev tsim khoom uas muaj kev nyob ruaj khov, thiab tsim cov khoom uas zoo rau dej thiab ntuj. Kev siv cov menyuam kab tuag rau kev pab huv siab dej thiab dej, xws li kev tshem fwm thiab kev huv siab dej, kuj tau tso caij loj lawm, uas tseem pab txhim kho qhov tseem ceeb ntawm lub chaw raug mob.

Nyem tias, cov menyuam kab tuag yog ib qho khoom siv zoo thiab muaj zaj tsho tseem ceeb rau ntau qhov chaw sib txawv. Lawv cov kev nyob ruaj khov zoo thiab kev nyob ruaj khov, thiab kuj muaj ntau yam khoom siv zoo, ua rau lawv muaj zaj tsho tseem ceeb hauv lub chaw tsim khoom tam sim no. Thaum qhov yuav tau khoom zoo thiab khoom siv ruaj khov rov tseem ceeb dua, qhov tseem ceeb ntawm lub chaw menyuam kab tuag yuav tseem ceeb dua.