Why is the thickness of the glass bottle uneven?

The uniform thickness of the glass bottle can be called one of the overall goals of the forming operation process. Only inhibit the formation of the glass bottle and its lips when the shape of the glass bottle is enforced by the appearance of the touch. The blown glass bottle is a compressed gas, or the vacuum pump is different for the definite touch boundary layer, which is plastic.

Whether the thickness of the vessel can ensure symmetry is the temperature in the material bubble, and the spread and close of the tempered laminated glass material, to see whether the two can be consistent with the development of the forming operation process. Therefore, in the actual operation of fully automatic forming glassware with air compression or vacuum pump, these two main parameters are accurately coordinated as far as possible. Initially, the temperature of the drop is symmetrical, and the tempered laminated glass material is made throughout the balance in the forming die, which means that the wall thickness of the handicraft is evenly distributed.
1. The shoulder of the glass bottle: some positions of the shoulder of the glass bottle are thin and cannot meet the required model specifications. The factors that cause the defects of the thick wall tube on the shoulder are often too high because the relative part of the embryo is not properly cooled or moistened, or the positive air inspection starts too late and the embryo is stretched too much.
2. The thin body of the glass bottle: the key to this kind of shortcomings is to refer to the thin and thick part of the glass bottle body, or all the thin and thick model specifications specified in the specification. The resulting factors are often because the reheating time of the prototype embryo is too long, and the time delay at the beginning of the positive air inspection may also cause the wall thickness of the glass bottle to be uneven. The wrong operation of its mold industrial building coatings and the mold shell are very dirty, resulting in a particularly large temperature difference at each position of the forming die or the forming die refrigeration is not suitable.
3. Thin bottom of glass bottle: the bottom thickness of glass bottle can not reach the standard model specifications. The initial mold contact time is too long, or the reheating time is insufficient, the billet temperature is too low, and the toughened laminated glass is not broadened well; The inverted air inspection starts too early, or the inverted air time is too long, and the pre-reheat of the bottle is insufficient. The positive air test starts too early, or the positive air test takes too long; Or the needle (mandrel) timing execution time is not suitable often will appear very likely.