What are the reasons for scratches and cracks in the glass bottle making process?

What are the reasons for scratches and cracks in the glass bottle making process?

1. When the glass blank falls into the initial mold, it cannot enter the initial mold accurately, and the friction with the mold wall is too large, forming a crease. After the positive blowing, the crease expands and expands, forming a crease in the glass bottle body.

2. The shear mark of some feeders is too large, and shear marks appear on the bottle body after some glass bottles are formed.

3. The initial mold and molding materials of the glass bottle are poor, the density is not good, and the oxidation is rapid after high temperature. Small pits are formed on the surface of the mold, resulting in the surface of the glass bottle after molding is not bright.

4. The initial mold design is unreasonable, the mold cavity is large or small, and the material is dripped into the molding mold. After the positive blowing, the diffusion is uneven, which will cause spots on the glass bottle body

5. The machine dripping speed is uneven, and improper adjustment of the air nozzle will make the initial mold and the mold temperature of the glass bottle inconsistent, which is easy to create cold spots on the glass bottle body, directly affecting the brightness.