Izinsimbi zikasimende eziphansi ziwuhlobo olulodwa lwe-refractory castable enezinga lokushisa eliphezulu lesevisi elingaphezu kuka-1550 ℃, esebenzisa usimende we-aluminate njengesibophezelo sawo, lapho inani le-CaO lingaphansi kuka-2.5%. Ukwakheka kukasimende ongancibilikiyo okunganakiwe ikakhulukazi kuhlanganisa i-refractory aggregate, impushana ephikisayo namanzi. Uma kuqhathaniswa ne-castable yendabuko ye-refractory, insimbi ephansi ye-cement refractory inochungechunge lokusebenza okuhle njengosimende ophansi, i-porosity ephansi, ukuqina kwevolumu enhle namandla aphezulu okuphulukisa abandayo. Futhi futhi ukuminyana kwe-cement castable okuphansi kuphezulu kunamanye ama-castable aphikisayo.
I-Low Cement castable iyi-refractory e-castable eyenziwe nge-ultrafine powder, usimende we-aluminate nezinye izingxube. Ngaphezu kwalokho, inani lalezi zinhlanganisela lingathonya ukusebenza kwayo. Ngokuqondene nenani layo lamanzi, uma kunikezwe ukukhululeka okuqinisekisiwe kokuxuba izinto, ukwengeza amanzi amancane kunganciphisa i-porosity futhi kuthuthukise amandla. I-Low Cement refractory castable inezinzuzo zamanzi amancane, ukuminyana okuphezulu namandla aphezulu, okuyisizathu sokuthi le nto ephikisayo isetshenziswa kabanzi emasimini amaningi nasezindaweni zomlilo ezihlukahlukene kanye neziko.
Izinga Lokushisa Eziphakeme Eziphakeme Namandla kanye Nokumelana Nokumelana Ne-Slag Corrosion Resistance.
I-Porosity Ephansi kanye Nokuminyana Okuphezulu Kwenqwaba. Phakathi nenqubo yokwakha, 1/3~1/2 kuphela inani lamanzi okuphonswa kwendabuko elizokwengezwa kulo.
Amandla Akhulayo Ngezinga Lokushisa Elithuthukisiwe Lokwelashwa Kokushisa Ngemva Kokuphonsa Emumeni: Ngokulungiswa okufanele kosayizi ohlakazekayo, kungaxutshwa kuzinto ezithelayo ezizigelezayo nezimpontshwayo.
Into/Inkomba | M | A1 | A2 |
Ingxenye yamakhemikhali | 65 | 80 | 90 |
Ukuhlanganisa | Mullite | Corundum | Corundum |
Izinga lokushisa eliphezulu lesevisi | 1600 | 1700 | 1800 |
I-Refractorine | 1750 | 1790 | 1790 |
Ukuminyana ngobuningi | 2.6 | 2.8 | 3.0 |
Ukushintsha komugqa ngemva kokufakwa kwe-sintered | |||
1000 ℃ | -0.2 | -0.2 | -0.2 |
1300 ℃ | ±0.5 | ±0.5 | ±0.5 |
Amandla okucindezela ngemva kokushisa | |||
110*24h | 30 | 30 | 30 |
1000*3h | 50 | 50 | 50 |
1400*3h | 70 | 80 | 80 |
I-low Cement insulation castable isetshenziswa kabanzi ezimbonini eziningi ezifana nezimboni ze-metallurgical, imboni ye-petrochemical, imboni yamandla, inkundla yokwakha nezinye izimboni. Futhi futhi i-Low Cement refractory castable ingasetshenziselwa iziko nama-boilers ezindaweni ezihlukene ngokuya ngokwakhiwa okuhlukahlukene. Isibonelo, ubumba kanye ne-alumina ephezulu ekwazi ukuphonswa usimende ephansi ekwazi ukuphonswa kokubili kungasetshenziswa ezintanjeni zesithando sokushisa, isithando somlilo esicwiliswayo kanye nezinye iziko zokushisa ukushisa.
Ifekthri ye-RS refractory iwumphakeli ochwepheshile ofaka usimende ongasakazwayo owasungulwa ekuqaleni kwawo-90s wekhulunyaka elingamashumi amabili. Ifekthri ye-RS refractory ikhethekile kuma-castable kasimende aphansi iminyaka engaphezu kwe-20. uma unesidingo esithile se-refractory low Cement castable, noma unemibuzo mayelana ne-refractory low usimende ongaphonsa mayelana nezinkomba ezibonakalayo namakhemikhali, sicela usithinte mahhala. kanye nefekthri ye-Rs refractory njengomkhiqizi ocwengekileyo ongacindezeli usimende ongacijile e-china, inezinzuzo ezithile zokuncintisana ngale ndlela elandelayo: