Causes of ceramic embryo cracking 3

(6) One of the most common reasons is improper repair. The cutting tool must be very sharp and must wait until the body is half dry before cutting or scraping. When the body is too dry, its strength is very weak. In this case, the body is easy to be cracked by the repair tool. As mentioned in the previous article, small cracks in the surface outside the billet increase the pressure. Generally speaking, after the end of the repair billet with wet sponge to wipe the surface of the billet smooth, can effectively prevent cracking.

 

(7) In the field of ceramic industrialization, the cracking mode on the plate mouth is called "bird's mouth". Its cause is caused by improper repair of the blank. Place the dry or nearly dry body of the plate on an electric turntable and trim the rim of the plate at an appropriate Angle with the help of an "L" cutter. If the Angle between the repair knife and the contact part of the blank body is not appropriate, the knife edge will jump quickly and collide or pull the outer surface of the utensil, and the split spike sleeve caused by this will appear after burning.