Claydite: conductivity thermal, iimpawu kunye nokubalulwa

ngodongwe eyandisiweyo, conductivity thermal leyo luqinisekiswa kakhulu izinto, naye ubunzima eliphantsi ethile kunye namandla eliphezulu. Ezi mpawu zibangela indawo ebanzi ukusetyenziswa kwale nto ekwakheni.

conductivity thermal

Kuba ezo izinto zenzelwe ukuba enze lo msebenzi wokhuseleko, lo conductivity iimpawu thermal kubaluleke ngokukhethekileyo. nobumba eYandisiweyo uba izinto zendalo, apho kungenxa yoko le parameter kuxhomekeke eziliqela iimpawu.

Phakathi ubukhulu okuziinkozo yokuqala kumele yabelwe. Eziphawulekayo nangakumbi kuba iqhezu, inkulu nemfuneko yokuba usambathisa. Le porosity nokufuma isiqulatho nodongwe eyandisiweyo, kakhulu, iya kuchaphazela conductivity thermal. 'Ngumlingani ka-avareji ye conductivity thermal kunzima ukumisela kuba kukho ezahlukahlukeneyo. ngodongwe eyandisiweyo, apho conductivity wobushushu kuncwadi reference okhankanywe uluhlu 0,07 W / m, uye hygroscopicity phezulu. Kodwa oko kuya kulungisa ukuba akhombe kunye nexabiso ubuninzi conductivity thermal - lufikelela 0.16.

Kubalulekile ukuba ukhethe into elungileyo. Ukuba conductivity thermal lingaphezulu, isixa ubushushu leyo udlula umaleko yokwambathisa ephawulekayo. Oku kubonisa ukuba ikhaka ubushushu uvikivwa. Kufuneka sinikele ingqalelo kwakhona ukuba porosity ngodongwe eyandisiweyo, nto leyo echaphazela lexinene conductivity thermal. I ephakamileyo iza kuba ukhetho lokuqala, i obuphantsi kuba ezimbini zokugqibela.

Yintoni kuchaphazela iimpawu eziphambili zodaka eyandisiweyo

Uphononongo lubonise ukuba conductivity wobushushu ngodongwe zandiswa emiselwe kukungabikho zwi, kodwa na kwimveliso elinikiweyo. Technologists kufuneka athathe ingqalelo imveliso ethile. Emva bonke eziqulethwe Leca dust kuphucula conductivity thermal, lo gama ezinye oxides ukuthoba ixabiso.

Oku akusebenzi yeegesi lasekwa ngo ukufudumeza kumaqondo lifutha. Kufumaniseke ukuba ukuba pores eziqulathwe kule H ₂ + CO kwi imali mkhulu kuno-55%, lo conductivity wobushushu ngodongwe eNatyisiweyo iza kuba amaxesha 2 ngaphezulu kwe ukuba inzaliseko iya kuba umoya. Ngomhla conductivity thermal inokuchaphazela nkqu micropores. I ezincinane bona, baya kuba inowuthi conductivity thermal, kodwa porosity yale abalinganiswa alichatshazelwa.

iipropati key

udongwe, conductivity ogama thermal bekutshiwo ngasentla, eYandisiweyo uye iipropati ezithile, phakathi kwabo:

• amandla eliphezulu;
• umbethe;
• kwalo;
• iyawulwa umlilo;
• intsalela ngokupheleleyo nomgangatho kunye neendleko.

Ujonge umbandela, umntu akakwazi ukwahlula iimpawu ngendlela elungileyo, ukumelana acid kunye imichiza inertness. LECA uthathwa izinto zendalo kwaye yokwambathisa imvelo thermal.

iimpawu eziphambili

ibloko eziphathekayo, i-conductivity wobushushu apho kuyimfuneko ukufunda phambi nokufunyanwa kwale nto uneempawu ezintle. It yenziwa shale kunye nodongwe simlungele zokwakha nokusingqongileyo kunye mihla.

Used block eziphathekayo nangaphezulu ngeenjongo zokuhombisa, kodwa ekhaya kufanelekile ekusombululeni iingxaki izilimo. Ngale nto nako ecaleni komphunga ukufuma kakhulu, nto leyo inceda ukulawula imali eseleyo amanzi zezityalo.

iimpawu technical

keramzita ukungavumelani kwe conductivity thermal umiselwe ngemilinganiselo zikarhulumente 9757-90, kwakunye nezinye iinkcukacha, kufuneka yabelwe phakathi kuqamba iqhezu. On sale unako ukufumana izinto e amaqhezu ezintathu:

• 5-10;
• 10-20;
• 20-40 mm.

Umntu akufuneki silibale ngayo kolunye udidi ngamaqhezu, nto leyo kakhulu kunqabile kusetyenziswa kumsebenzi wokwakha. Ezi ziquka igrabile kwaye yandisa iingqalutye ngodongwe yakhe imilinganiselo ziqala ukusuka 2.5 ukuya kwi-10 mm. Lidla xa uthenga umboleki unomdla kwiindawo ezixineneyo isambuku-7 ukuya ukucwangcisa amaxabiso brand kulo mba:

• ku 250 kg / m ³ - 250 brand;
• ukusuka kg 250 ukuya 300 / m ³ - ingabonisa 300;
• analogously - brand 350, 400, 450, 500, 600.

Kuba intengiso jikelele brand zimbini zilandelayo azifumaneki, zenziwe kuphela ngokubhungisana umthengi. ngodongwe eyandisiweyo, iimpawu, conductivity thermal, ibizwa kweli nqaku, yaye kufuneka ibe umdla umthengi a ukugangatheka umlinganiselo othile, oko kukuthi elungelelanisiweyo ngamnye, kodwa ke ixabiso umkhulu 1.15. An parameter ebalulekileyo egqiba ukuziphatha ngodongwe eyandisiweyo xa zibethwa ukufuma, kukufakwa emanzini. Oku kunokwahluka ukusuka-8 ukuya kwi-20%.

Ukuthelekisa le conductivity thermal ngodongwe landiswa kunye nezinye izinto

ngodongwe eyandisiweyo, conductivity thermal (uthelekisa le zithwala nezinye izinto nazo kufuneka ziqhutywe phambi kokwenza nokukhethwa material), apho sele ikhankanyiwe apha ngasentla, oko ezithandwayo ngabathengi yoboya izimbiwa okanye perlite eyandisiweyo. Kwimeko yokuqala, 'ngumlingani ngu 0.04, nto leyo ibonisa ukuba Ebubanzini elinye uboya kuya kukhulula ubushushu ngaphantsi xa kuthelekiswa nodongwe eyandisiweyo.

Enye indlela - oko kwandiswa perlite. ukufakwa wayo amanzi asezantsi udongwe eyandisiweyo kwaye 5% kuphela, ngoxa conductivity wobushushu we 0.04 kuphela.

Ukwandiswa udongwe, iimpawu, conductivity thermal, nto leyo maxa wambi ndiyenze izinto sele imisebenzi, maxa wambi xa kuthelekiswa ne-vermiculite. Nguye lo ukhetho ilungileyo, leyo endaweni kwibhloko eziphathekayo, kwaye yaveliswa eliweni, iyenza indalo. conductivity Thermal of vermiculite eyandisiweyo ngu 0.08, nto leyo 2 amaxesha ngaphantsi xa kuthelekiswa ne ngewulu bezimbiwa. Ukuba le nto isetyenziswa, unako ukwenza maleko ubhityileyo backfill, nto leyo eya ukulayisha ezifanayo ngaphantsi. Kuthiwa ukusebenzisa le yokugquma inokuba kwakhona njengesiseko amaqhina.

isiphelo

Le conductivity thermal lisebenza njengomnye iimpawu ezibalulekileyo nodongwe eyandisiweyo. Kodwa ke kakhulu ezizimeleyo indlela kwimveliso. Ukuba usebenzisa iteknoloji eqhelekileyo ukutshintsha umgangatho ngodongwe eyandisiweyo akukho ingakumbi ukusebenza. Nangona kunjalo, ukusetyenziswa ubuchule mihla le ndlela uhlobo co-badubula okanye ductile kunokwenzeka ukwandisa iimpawu zokwambathisa nodongwe eyandisiweyo.