Taking white opal bottle as an example, what are the reasons that affect the surface finish?
- When the glass blank falls into the preliminary mold, it cannot accurately enter the preliminary mold, and the friction with the mold wall is too large to form creases.
- The scissors marks of the upper feeder are too large, and the scissors scars appear on the bottle body after individual bottles are formed.
- The glass bottle initial mold and molding material are poor, the density is not enough, and the oxidation is too fast after high temperature, forming small pits on the surface of the mold, resulting in an unsmooth surface of the glass bottle after molding.
- Glass bottle mold oil, poor quality will make the mold not lubricated enough, the dripping speed will be reduced, and the material type will change too quickly.
- The design of the initial mold is unreasonable, and the mold cavity is large or small. After the gob enters the molding mold, it is blown and spreads unevenly, which will cause spots on the body of the white opal bottle.
