How to improve the quality of glass bottle production?

As one of the packaging materials, glass bottles are widely used in various industries. Therefore, people pay special attention to the quality of glass bottles. How can we produce high-quality glass bottle products? First of all, let's understand what problems are likely to occur in the production process and how to avoid them?

 1), Cracks. Cracks are the most common defect in glass bottles. It can be very fine, some only found in reflected light. The most common parts are the mouth of the bottle, the neck and shoulders, and the bottle body and bottom of the bottle are often cracked.

(2), Uneven thickness. This refers to the uneven distribution of glass on the glass bottle. The first is that the temperature of the glass gob is uneven, the part with high temperature has low viscosity and is easy to blow thin, and the part with low temperature has large resistance and is thicker. The temperature of the model is uneven. The glass on the high temperature side cools slowly and is simply blown thin, and the glass on the low temperature side is blown thick because the glass cools quickly.

 (3), Deformation. If the temperature of the gob and the action temperature are too high, the bottle released from the forming die does not have a perfect shape, and often collapses and deforms. Sometimes the bottom of the bottle is still soft and the lines of the conveyor belt are printed, making the bottom of the bottle uneven.

(4), Not plump. If the gob temperature is too low or the model is too cold, the mouth and shoulders will not be blown fully, resulting in defects such as gaps, collapsed shoulders and unclear spots.

(5), Cold shift. Shifts that are not lubricated on the glass surface are called cold shifts. The main reason for this defect is that the temperature of the model is too cold, which mostly occurs when starting production or stopping and reproducing.

(6), Wrinkles. The wrinkles have various shapes, some are creases, and some are very thin wrinkles. The main reason is that the gob is too cold, the gob is too long, and the gob does not fall in the middle of the initial mold and adheres to the cavity wall. generated.

(8), Surface defects. The surface of the glass bottle is rough and uneven, mainly because the surface of the mold cavity is not smooth. If the lubricating oil of the model is not clean or the brush for drawing oil is too dirty, the surface quality of the glass bottle will also decrease.

(9), Bubbles. The bubbles generated in the forming process are often several large bubbles or several small bubbles gathered together, which is different from the evenly distributed small bubbles of the glass itself

(10) Scissors print. There are obvious traces left on the bottle and can due to poor shearing. One gob often has two scissor marks. The upper scissors mark is left on the bottom, which affects the appearance. The lower scissors mark is left on the bottle mouth, which is often the cause of cracks. .


 The above problems are relatively common in the production process of glass bottles, and do not mean that they will all occur in the production process. In order to better serve customers, our factory will strictly control every step in the production process. According to the different needs of different customers, we will do strict quality control, please rest assured. If you have any professional production questions,just feel free to contact us, let's get the answer together.

Post time: Aug-04-2022