Isitena sokufaka ubushushu sodongwe esinobunzima obuphantsi senziwe ngodongwe oluvuthayo njengezinto eziluhlaza kunye nodongwe lweplastiki njengesixhobo sokubopha, emva koko kongezwa isixhobo esifanelekileyo sokutsha okanye sokwenza igwebu ngokudubula. Udongwe oluvuthayo luvimba ukuvuleka okubonakalayo malunga ne-40 ~ 85% kwaye ubuninzi bobuninzi bungaphantsi kwe-1.5 g / cm3. Izitena zomlilo ezifake ubushushu zodongwe zisetyenziswa kakhulu njengezixhobo zokufaka ubushushu kwi-oven yemizi-mveliso ukunciphisa ukulahleka kobushushu kwi-oven, ukonga amandla kunye nokunciphisa umgangatho wezixhobo zobushushu.
Izitena zokufaka ubushushu bodongwe olulula zenziwe ngodongwe olucocekileyo noluqinileyo, ngokuzitshisa kubushushu obuphezulu. Iibhloko zokufaka ubushushu bodongwe zizitena zokufaka ubushushu ezingabizi kakhulu nezisebenza kakuhle. Iingenelo eziphambili zebhloko yokufakela udongwe kukungakwazi ukumelana nomthwalo, ii-coefficients zokwandisa umgca ophantsi, ukumelana nokutsha kobushushu obuhle kunye nokukwazi ukumelana nokukhukuliseka. Zenziwe ngezinto zodongwe oluphezulu olusemgangathweni ophezulu phantsi kobushushu obuphezulu ngokomgangatho wesizwe ohlala ixesha elide, ezinobunzima obulinganayo, amandla aphezulu, ukuqhuba kobushushu obuphantsi kunye nokungcola okuphantsi.
Isitena somlilo esigqumayo sodongwe yimveliso engaqhelekanga enomxholo we-Al2O3 omalunga ne-30~40%. Eyenziwe ngodongwe oluthambileyo oluyi-50% kunye ne-chamotte eqinileyo eyi-50% ngokwee-granularity ezithile kufuneka ixutywe kwaye itshiswe kubushushu obuphezulu be-1300~1400 ℃ emva kokubumba nokomisa. Ulwakhiwo oluphambili lwezitena zomlilo ezigqumayo zodongwe luquka i-kaolinite (Al2O3·2SiO2·2H2O) kunye nokungcola okuyi-6~7% (K, Na, Ca, Ti, Fe oxide).
| Izinto | NG-0.6 | NG-0.8 | NG-1.0 | NG-1.3 | NG-1.5 | |
| Ubushushu obuphezulu beNkonzo | 1200 | 1280 | 1300 | 1350 | 1400 | |
| Ubuninzi bobuninzi, g/cm3 | 0.6 | 0.8 | 1.0 | 1.3 | 1.5 | |
| I-Porosity ebonakalayo, % | 70 | 60 | 55 | 50 | 40 | |
| Amandla okutyumza okubandayo (i-Mpa) ≥ | 2.0 | 2.5 | 3.0 | 4.0 | 6.0 | |
| Ukutshintsha kweLinear (%)℃ × 12h ≤ | 1300℃ -0.5 | 1350℃ -0.5 | 1350℃ -0.9 | 1350℃ -0.9 | 1350℃ -0.9 | |
| Ukuqhuba kobushushu i-W/(m·K) | 600℃ | 0.16 | 0.45 | 0.43 | 0.61 | 0.71 |
| 800℃ | 0.18 | 0.50 | 0.44 | 0.67 | 0.77 | |
| I-Al2O3 | 40 | 40 | 40 | 40 | 42 | |
| I-SiO2 | 1.5 | 1.5 | 1.5 | 2 | 2 | |
| I-Fe2O3 | 55 | 55 | 55 | 55 | 55 | |
Ibhloko yokugquma yodongwe isetyenziselwa ikakhulu ukuvala ubushushu obuphakathi okanye ukuvala ubushushu obuphakathi kwezinye izinto ezithintela ubushushu. Iibhloko zokugquma okanye izinto zokugquma ubushushu zamashishini, ezinje ngee-ethylene pyrolysis furnaces, ii-tubular furnaces, ii-reforming furnaces ze-synthetic ammonia, ii-gas generators kunye nee-shullte kilns ezishushu kakhulu, njl.njl.