Detailed Introduction to Glass Bottle Production Process

This article introduces the glass bottle manufacturing process, glass bottle production line. How will you make glass bottles, such as beer bottles, beverage bottles, etc. How to package glass bottles.

1 – Glass Bottle Manufacturer Raw Materials Most of the raw materials used to make glass bottles are sand, soda ash and limestone. Cullet is added to this mixture. Cullet is broken glass, whether it is waste from the manufacturing process or waste from the recycling center. For every ton of glass recycled, 1300 pounds of sand, 410 pounds of soda ash and 380 pounds of limestone can be saved. This will save manufacturing costs, save costs and energy, so that customers can get economical prices on our products.

2 – Melting Glass Bottle Raw Materials in a Furnace Raw materials and cullet are continuously melted at high temperatures, around 1650°C, the furnace runs 24 hours a day, and the raw material mixture forms molten glass in about 24 hours. The molten glass passes through the forehearth, and then at the end of the forehearth, the glass flow is cut into pieces according to weight, and the temperature is precisely set.

3 – Glass Bottle/Jar Forming There are two forming methods applicable: Press Blow or Blow Blow, which are performed in IS machines, Press Blow Glass Bottles Cut droplets fall down, and the droplets are pressed into a blank mold with a metal plunger, where it expects the shape of the mold, and is then called a parison. Next, the parison is moved into the final mold and blown into the mold for final measurement. This process is usually used for wide-mouth glass bottles, but it can also be used to produce narrow-necked glass bottles. Blow Blow Glass Bottles Cut droplets fall down, and in blow blow molding, the droplets are compressed into the blank mold, and compressed air is used to push the droplets into place, called a parison, which is moved to the final mold and blown again to form the inside of the frame glass bottle. Glass bottles (narrow containers) with different neck thicknesses can be manufactured using a blow-blown arrangement.

4- Annealing during glass bottle manufacturing Regardless of the process, after blown glass containers are formed, they are usually surface coated while they are still hot, in order to make bottles and jars more scratch-resistant, this is called hot end surface treatment, and then the glass bottles are taken to the annealing furnace, where their temperature is restored to about 815 ° C, and then gradually reduced to below 480 ° C. This will take about 2 hours. This reheating and slow cooling eliminates the pressure in the container. It will enhance the firmness of the naturally formed glass container. Otherwise, the glass will break easily.

5- Glass bottle quality inspection Before inspection, they are usually cold-end surface coated to reduce the temperature of the glass container to about 100 ° C, otherwise the glass will be easily scratched. After leaving the cold treatment end of the annealing furnace, in order to ensure product quality, we use Led beam technology (Led detection), Camara detection machine, integrated detection machine to detect faults that are invisible to the naked eye. These include, but are not limited to: sealing surface inspection, dimensional analysis, wall thickness detection, breakage detection, edge and bottom scanning, wall scanning. Any bottle that does not meet the standard will be automatically rejected, and these rejected bottles will be re-melted and reused as raw materials. Automatic inspection will ensure stable quality for our customers.

6 – Glass Bottle Packaging The packaging method of glass bottles will depend on customer requirements. Usually we use the following two methods for packaging. Standard Pallet Packaging (Bulk Pack) Carton Pallet Packaging (Case Pack) After all the glass bottle manufacturing processes, the glass bottles can be stored in the required shape and size and then sent to the filling plant.