iindaba

Ifayibha erhabaxangendlela yokudluliselwa kobushushu inokwahlulwahlulwa ibe zizinto ezahlukeneyo, ukudluliselwa kobushushu bemitha yesilo esineembobo, umoya ongaphakathi kwesilo esineembobo ukuhanjiswa kobushushu kunye nokuhanjiswa kobushushu befayibha eqinileyo, apho ukudluliselwa kobushushu obuhambelanayo komoya kungakhathalelwa. Uxinano olukhulu kunye nobushushu buxhomekeke kwelinye icala, okukhona ubushushu buphezulu, kokukhona uxinano olukhulu lwetyala luphantsi, umlinganiselo wokudluliselwa kobushushu bemitha uyanda. Kwiimveliso zefayibha ezichaseneyo, uxinano olukhulu luhlala lungaphantsi kwe-0.25g/cm', imbobo ingaphezulu kwe-90%, isigaba segesi sinokubonwa njengeqhubekayo, isigaba esiqinileyo sinokubonwa njengesingaqhubekiyo, ngoko ke ukuhanjiswa kobushushu obuqinileyo befayibha kuncinci.
Ukuba nje ngokusuka kwingcamango yokuba uxinano olukhulu luncinci, uqhushumbo lobushushu lukhulu, uxinano olukhulu luqhushumbo lobushushu luncinci; oku akuhambelani nemeko yokwenyani, njengokuba umxholo webhola ye-slag wahlukile, nokuba uxinano olukhulu lufana, inani leefayibha ngeyunithi nganye lahlukile, ngoko ke ubuninzi be-porosity ngeyunithi nganye abufani, ngoko ke kuya kubakho umahluko kuqhushumbo lobushushu. Nangona kunjalo, izigqibo ezisemgangathweni zingashwankathelwa ngolu hlobo lulandelayo.
1. Ukuqhuba kobushushu beiifayibha ezichasayoiyancipha ngokunyuka koxinano, kwaye ukwehla kwehla kancinci kancinci, kodwa xa uxinano lufikelela kuluhlu oluthile, ukuhanjiswa kobushushu akusanciphi kwaye kunomkhwa wokunyuka kancinci kancinci.
2. Kumaqondo obushushu ahlukeneyo, kukho umbane ophantsi kakhulu kunye nombane ophantsi kakhulu ohambelanayo. Ubuninzi obuhambelana nombane ophantsi kakhulu buyanda xa ubushushu busanda.
3. Kwi-density efanayo, i-thermal conductivity iyahluka ngokobukhulu bee-pores.
(1) Ubungakanani bembobo yi-0.1mm.
0C ukuya kwi = 0.0244W/(m . K) 100C xa λ = 0.0314W / (m. K)
(2) Imbobo eyi-2mm.
Kwi-0C = 0.0314W/(m, K) λ = 0. 0512W/(m . K) kwi-100C. K)
Ububanzi be-Pore buyi-1mm, ubushushu bunyuka ukusuka kwi-0C ukuya kwi-500C, ixabiso layo lokuqhuba ubushushu liyanda amaxesha angama-5.3; ububanzi be-pore buyi-5mm, ubushushu bunyuka ukusuka kwi-0C ukuya kwi-500C, ixabiso layo lokuqhuba ubushushu liyanda amaxesha ali-11.7. Ke ngoko, okukhona ii-pores zinkulu kwi-fiber enganyangekiyo, kokukhona uxinano oluhambelanayo luncinci, kwaye ukuqhubela ubushushu kuyanda.