Why are glass cups produced by artificial blowing?


It takes a long time to manually blow a glass cup because it depends on the manual operation and experience of the production staff. Specifically, blowing a glass cup includes blowing a small ball, blowing, gradually cooling, initial inspection, cutting, grinding, drying, etc. Each step requires delicate operation and a certain amount of time. Although more and more machines can replace manual production, some glassware cannot be produced by machines at present, such as😎

1. Special-shaped glass products: Some special-shaped glass products without moulds need to rely on experienced craftsmen for manual blowing.

2. Special-shaped decanters: Unlike conventional decanters, special-shaped decanters have no moulds and must be manually blown to achieve basic consistency in shape and capacity.

3. Most high-heeled glasses: The difficulty of the process lies in the pulling process, the length, thickness and glossiness of the stem.

4. Moldless blown glassware: In glassware manufacturing, moldless blowing is a common moulding method that requires manual blowing.

5. Mold-blown glassware: First, make a hollow mould with copper or iron, then use a blowpipe to dip the molten glass and place it in the mould for blowing. This method can make objects and parts with special shapes such as square and polygonal shapes.






If a customer customizes a handle cup with a manual blowing process and puts a logo and decals on the cup, the following steps are required:🌟

1. Pre-processing of raw materials to ensure the quality of the glass.

2. Preparation of batch materials for melting.

3. Melting: forming uniform, bubble-free liquid glass.

4. Molding: putting the liquid glass into the mould and making the glass product of the required shape by manual blowing.

5. Blowing a small ball: blowing out a small bulb-shaped ball as the basic core of the glass cup.

6. Blowing: after blowing out a moderate size and shape, insert the metal mould and continue blowing, and then the appearance of the cup will appear.

7. Gradually cooling, initial inspection: gradually cooling to room temperature after more than an hour. The cooled glasses are subjected to preliminary manual inspection one by one here, and those that do not meet the quality standards will be eliminated.

8. Cutting: The glasses that have passed the initial quality inspection are heated and cut along the cutting line with a diamond knife using a flame according to the finished product specifications to remove the excess parts.

9. Grinding: Grinding is done in two steps, first on a grinder, and then manually to achieve a smoother effect.

10. Drying: After the ground mouth is cleaned, it needs to be heated again to dissolve any impurities and foreign matter that may remain.

12. Decal and logo: After the surface of the cup is clean and dry, the designed decal and logo are pasted on the cup, and the decal and logo are firmly adhered to the surface of the cup through a certain temperature and pressure.

13. Inspection and packaging. 👏


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