Habka adkeynta iyo kaydinta saxda ah ee kabka fosfatada

Kabka Fosfate waxa loola jeedaa kabka la kasbado oo ay ku jiraan fosfooraska acid ama fosfooraska, iyo habka adkayntiisa ayaa la xidhiidha nooca xidhaha la isticmaalo iyo habka adkaynta.

Hardening mechanism and correct storage of phosphate refractory castables (2)

Isku xirka fosfooraska castable wuxuu noqon karaa phosphoric acid ama xal isku dhafan oo aluminium dihydrogen phosphate 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). Kuleyliyaha ayaa loo baahan yahay si loo fuuqbaxo oo uu isku ururiyo binderka oo lagu xiro budada wadareed si wadajir ah loogu 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 dib u celiyaan ay dejiyaan oo ay adkaadaan. Marka sibidhka aluminate lagu daro, fosfattis leh sifooyin gelling wanaagsan, fosfooraska biyaha ku jira sida calcium monohydrogen phosphate ama diphosphate ayaa la sameeyaa. Kaalshiyamka hydrogen-ka, iwm., waxay sababaan walxuhu inay adkaadaan oo ay adkaadaan.

Hardening mechanism and correct storage of phosphate refractory castables (2)

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 shiidi karo 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