Stingy sagger consists of casing wall (also known as the box ring) composition and the box bottom. Production casingprocess generally is: Bamboo take special several pieces, with string along thickness direction through the bamboo,then the vertical, and put the two together in a circle cylinder, with a fixed iron circle inside, outside with a rope tied.Then the box mud deposited in circle cylinder
The outer wall, apply to certain thickness with a cloth dipped in water, the outer smooth, and then use the iron paringshaping. Good, remove the iron ring inside the cylinder, the cylinder surface from the inside out ring contraction, thensmooth inner wall and shaping. The box wall for good, move it to him a little dry. During the process of making stembottom generally is: take a diameter equal to or slightly larger than the outer diameter of casing wall made of iron, thebox mud friends circle, stamped on the box of mud, the mud is uniformly filled box in different parts of the circle. Then put a box of mud at the center, and the flapping, box bottom system in place, a little dry. The casing wall and the boxbottom dry moderate, the box wall edge dip box paste, it sits on the box bottom, and then the adhesive is trimmed flat.
Big sagger is composed of straight wall and the inclined wall. Method for making a straight wall and making smallcasing wall roughly the same. Method for making inclined wall and ceramic casting similar, just because the box mudcoarse particles, we must work with water in the refinement and shaping. The straight wall and the inclined wall system in place, namely the cartridge with the slurry will be adhered to each other. Bonding method, and stingy saggerbonding method is basically the same.
The pot billet prepared is green (commonly known as soil box), soil box is not for firing blank, only the soil box plating(i.e. roasting) into the sound box (cooked box), can be used in blank.
At present, making industrial refractory sagger with mullite, corundum mullite, alumina etc..
