Fosfate castable waxaa loola jeedaa kabka lagu daray fosfooraska aashitada ama fosfooraska, iyo habka adkeyntiisa waxay la xiriirtaa nooca xiraha la isticmaalo iyo habka adkeynta.
Isku xirka fosfooraska castable wuxuu noqon karaa fosfooraska acid ama xal isku dhafan oo aluminium dihydrogen fosfate ah oo ay soo saarto falcelinta fosfooraska acid iyo aluminium hydroxide. Guud ahaan, xiraha iyo aluminium silicate kama falceliyaan heerkulka qolka (marka laga reebo birta). Kululaynta ayaa loo baahan yahay si ay u fuuqbaxdo oo ay isku ururiso binderka iyo isku xidhka budada wadarta ah si loo helo xoogga heerkulka qolka.
Marka xinjirowga loo isticmaalo, kululaynta looma baahna, iyo budada magnesiiya ee wanaagsan ama sibidhka aluminium sare ayaa lagu dari karaa si loo dardar geliyo xinjirowga. Marka budada ganaaxa ee magnesium oxide lagu daro, waxay si dhakhso ah ula falgashaa fosfooraska acid si ay u samaysato, taasoo keenaysa in walxaha refractory ay dejiyaan oo ay adkaadaan. Marka sibidhka aluminate lagu daro, phosphates leh sifooyin gelling wanaagsan, fosfatetada biyaha ku jira sida calcium monohydrogen phosphate ama diphosphate ayaa la sameeyaa. Kaalshiyamka hydrogen-ka, iwm., waxay keenaan walxaha inay isku ururaan oo ay adkaadaan.
Laga soo bilaabo habka adag ee fosfooraska fosfooraska iyo fosfooraska castables refractory, waxaa la og yahay in kaliya marka heerka falcelinta u dhexeeya sibidhka iyo isku-darka isku-darka iyo budada ay ku habboon tahay inta lagu jiro habka kuleylka ayaa la samayn karaa kabka refractory aad u fiican. Si kastaba ha ahaatee, alaabta ceeriin ee refractory si fudud ayaa loo keenaa habka miirida, kubbadda wax lagu dhaqo iyo isku dhafka. Waxay la falcelin doonaan wakiilka sibidhka waxayna sii daayaan hydrogen inta lagu jiro isku darka, taas oo keeni doonta kabka refractory si ay u bararaan, dabacsanaan dhismaha oo ay yareeyaan xoogga cadaadiska. Tani waa mid aan fiicnayn soo saarista fosfooraska caadiga ah iyo kabka fosfooraska.
Waqtiga boostada: Nov-04-2021