What are the reasons for the scratches and cracks in the glass bottle making process，glasscookware? 1. When the glass blank falls into the initial mold, it cannot enter the initial mold precisely, and the friction with the mold wall is too large, forming a crease. After positive blowing, the crease expands and expands, forming a crease in the glass body. 2. The shear marks of some feeders are too large, and some glass bottles have shear marks on the bottle body after molding. 3. The initial mold and molding materials of the glass bottle are poor, the density is not good, the oxidation is rapid after high temperature, and the surface of the mold forms small pits, resulting in the surface of the glass bottle after molding is not bright. 4. The planning of the initial mold is unreasonable, and the mold cavity is large or small. After the gob enters the molding mold, it is blown up and spreads unevenly, which will cause spots on the glass bottle. 5. The machine dripping speed is not uniform, and the improper adjustment of the air nozzle will make the glass bottle initial mold and mold temperature uncoordinated, and it is easy to create cold spots on the glass bottle body, which directly affects the brightness.