The firing process is done initially at a low temperature of around 100ºC for 2 hours. This will remove excess water remaining.
+
* The firing process is done initially at a low temperature of around 100ºC for 2 hours. This will remove excess water remaining.
−
Finally, the temperature is gradually increased to high temperatures. At 866 ° C, clay vitrifies as the silica and alumina molecules melt and bind to form a new mineral with needle-like fibrous structures. Vitreous clay is hard, resistant to stress and does not change shape when water is added. After vitrification, clay has a new chemical structure and cannot be powdered and reused as clay dust.
+
* Finally, the temperature is gradually increased to high temperatures. At 866 ° C, clay vitrifies as the silica and alumina molecules melt and bind to form a new mineral with needle-like fibrous structures. Vitreous clay is hard, resistant to stress and does not change shape when water is added. After vitrification, clay has a new chemical structure and cannot be powdered and reused as clay dust.
−
Fire at 900 ° C for 9 hours.
+
* Fire at 900 ° C for 9 hours.
Version actuelle datée du 29 mars 2021 à 20:44
The firing process is done initially at a low temperature of around 100ºC for 2 hours. This will remove excess water remaining.
Finally, the temperature is gradually increased to high temperatures. At 866 ° C, clay vitrifies as the silica and alumina molecules melt and bind to form a new mineral with needle-like fibrous structures. Vitreous clay is hard, resistant to stress and does not change shape when water is added. After vitrification, clay has a new chemical structure and cannot be powdered and reused as clay dust.
Fire at 900 ° C for 9 hours.
×
Erreur de saisie dans le nom du tutoriel
Vous avez entré un nom de page invalide, avec un ou plusieurs caractères suivants :
< > @ ~ : * € £ ` + = / \ | [ ] { } ; ? #
Connexion
Pas encore enregistré ? Créez un compte pour profiter de toutes les fonctionnalités du service !