Detailed explanation of the manufacturing process of glass fiber cloth

Glass fiber cloth is an important composite material substrate and is widely used in various fields due to its excellent performance. This article will introduce the manufacturing process of glass fiber cloth in detail, including the selection of raw materials, cleaning, production technology and process flow.

1. Selection and cleaning of raw materials

1.1 Selection of raw materials
The raw materials of glass fiber cloth are mainly waste glass, but organic glass, mercury glass, brown glass and high-temperature glass must be excluded. The diameter of the raw material should be more than 3 cm.

1.2 Cleaning of raw materials
1. Put the waste glass into a cement tank, add clean water, and use a long stick to stir and clean it in a cycle to remove the sediment on the surface of the glass.

2. After cleaning to a certain extent, put the raw material into the next tank and clean it again until the sediment is completely cleaned.

3. Finally, remove the moisture on the surface of the raw material as much as possible.

2. Special equipment production

2.1 Special equipment for glass fiber manufacturing
Special production equipment is required to manufacture glass fiber, including but not limited to motors, AC contactors, knife brakes, electric meters, etc.

2.2 Installation of machinery, circuits and their use
1. Mechanical installation: Ensure that all mechanical equipment is installed correctly.
2. Circuit description: Detailed description of the connection and use of the circuit to ensure safe operation.

3. Glass fiber production technology and process

3.1 Process flow
1. Raw material selection, cleaning and drying: Dry the cleaned raw materials for use.
2. Preheating and heating: Preheat the processed raw materials in a crucible, ignite and heat to 1100-1300 degrees Celsius, and then adjust the temperature.
3. Stretching, softening and winding: Through stretching, softening and other steps, the glass fiber is wound into a finished product.
4. Finished product packaging and storage: The finished product is packaged and stored.

3.2 Precautions
1. Fire: Preheat the burner before ignition.
2. Drawing: During the drawing process, pulling the steel wire from the outside to the inside can reduce the breakage rate of the boss.
3. Spraying softener: Spray softener on the drum (before adding silk).

4. Further processing of glass fiber cloth

4.1 Manufacturing grey cloth
Several glass fiber raw yarns are passed through a combing warping process, and then the warp beam is adjusted with a sizing machine.

4.2 Beaming
The warp yarns obtained are mixed with the weft yarns, immersed in the sizing tank, and the wet sizing yarns after the sizing tank are twisted into the hot drying area, and the yarn surface is dried with hot air to form a film.

4.3 Hot cleaning
The sizing agent and other organic matter on the glass fiber cloth is burned from 8% to 0.5~1.6%.

4.4 Pretreatment and drying
1. Pretreatment: The cloth is pretreated at a speed of 50m/min by electric heating. The temperature of the simmering and heat preservation stage is 385±10℃, and the heat preservation time is 18 hours.
2. Drying: Dry at 160~220℃ for 1.0~1.5 hours, and then cut accurately according to the actual size of the circuit board after cooling.

4.5 Surface treatment
Apply the coupling agent at a speed of 50m/min, and perform trimming, winding, inspection and packaging at 180℃.

Through the above detailed manufacturing process, we can see that the production process of glass fiber cloth is complex and delicate, and each step has an important impact on the quality of the final product. I hope this article can help you better understand the manufacturing process of glass fiber cloth.