1. Hot working stage (blowing bubbles, shaping, shaping)

First, a small amount of molten glass is taken from a blowpipe in a glass furnace (the temperature of the molten glass is 1250°C to 1450°C), and the bubbles are blown with the blowpipe. The glass bubble is the forming base of the glass

The diameter of the vesicle is usually 3-10cm. In the process of blowing the vesicle, it is necessary to check carefully. If there are bubbles, streaks, impurities and other conditions on the vesicle, it is necessary to abandon the use

Can cause defects in the glass. The bubble should be blown round and the wall thickness should be even. The quality of the bubble directly determines the quality of the glass products.

With a small bubble blow pipe from the glass furnace to take glass molten material, this step is very important, the amount of material directly determines the weight of the product, the thickness of the bottom, the thickness of the wall, at the same time

The material technique also affects the glass material quality to a certain extent. A good technique can avoid taking out the material liquid with bubbles, stripes and impurities, and also avoid forming new steam in the process of taking the material

Bubble.

After taking out the material, shaping is carried out in the shaping die. After the similar shape is completed according to the product modeling, the shaped material blank is put into the mold for blowing. Blowing is the most important part of glass forming process

The level of blowing technique directly determines the brightness of the glass and the uniformity of the wall thickness. Generally, those engaged in this process are experienced old craftsmen.

After blowing in the mold, the glass without stiffness is directly entered the annealing kiln for annealing, and the stemware glass needs to be stretched out and made the bottom before annealing.

2 Annealing stage

The annealing process is the process of removing the internal stress in the glass. The product goes through the process of high temperature and then cooling in the annealing kiln. In the annealing process, the highest temperature reaches about 540°C. This process

It usually takes 120-180 minutes to run 30 meters in the annealing kiln.

3. Cold processing stage

After annealing, enter the cold processing stage, this stage is part of the treatment stage. At this stage, the cutting, grinding and drying are carried out respectively, and the products with thick mouths are thrown

Light processing. After this stage, the part of the glass becomes smooth and ready for use.

4. Deep processing stage

After the cold processing stage, the need for deep processing into the deep processing stage. Deep processing of the main T arts are carved, sandblasting, decal paper, gold ornaments, decorative decorations and so on.

5. Quality control stage

After all kinds of processing is completed, enter the quality inspection stage. All products have to go through the inspection personnel one by one, hand inspection, can be packaged. The common defects of glass are mainly

There are bubbles, stripes, impurities, abrasions, uneven mouth, uneven bottom and size does not meet specifications.