What is Automotive Glass Bending Furnace?
An automotive glass bending furnace is used to bend tempered glass into various shapes. These furnaces are typically found in large manufacturing plants, but smaller companies can purchase a custom version of this equipment.
This type of machine uses heat wires to soften the glass and then applies pressure or not to shape it. Once the 1 pair of glasses cool down, then are laminated with safety glass PVB films, making it much stronger than ordinary glass. Bending laminated glass is commonly used in windshields and other safety features of vehicles.
Automotive Glass Bending Furnace Models & Price
There are two main types of glass-bending machines available today: manual and automatic. Manual glass bending machines require human operators who manually operate the glass heating process. Automatic glass bending machines use PVC sensors to detect the temperature of the glass and automatically adjust to the glass heating as needed.
Both types of glass bending machines are very expensive, costing anywhere from $100,000 to over $1 million from Europe suppliers. Because of this cost, most manufacturers opt to buy from Chinese automotive glass-bending furnace manufacturers.
Because of the expense involved, most glass bending machines are purchased by larger companies that manufacture cars, trucks, and SUVs. Smaller companies usually choose to invest in a manual glass bending machine because it allows them to create special glass design with cheap price.
20+ Features of the Latest Automotive Glass Bending Furnace
The following pictures show the latest 3 chambers 2 wagons automotive glass bending kiln works:
1. The maximum glass sheets size for heat bending is: 2500×2500mm or customized.
2. The size of heating chamber inside the furnace is 3000*3000*850mm.
3. Heating box insulation material thickness: top 320mm, around 200mm.
4.No-load temperature rise rate≧5℃/min.
5.No-load cooling rate can be automatically controlled, the cooling rate of 3-10 ℃ / min.
6. Bending glass temperature 0 ~ 800 ℃, furnace temperature uniformity ± 5 ℃, the working state of the outer wall temperature is less than 50 ℃.
7. Continuous operation for more than 48 hours.
8. The sound in the hot bending operation area is less than 80db .
9. Furnace heating wire arrangement
Furnace wire arrangement size of the top of the furnace body is 3000 × 3000mm, divided into two layers, the first layer of horizontal arrangement, can not be lifted; the second layer of longitudinal arrangement, the furnace wire lifting width is centered 2500mm, lifting depth of 600mm, the rest of the furnace wire can not be lifted, a total of 21 groups of furnace wire lifting, each group of 10. The specific arrangement of the furnace wire is shown in the another “furnace wire layout diagram”. The bottom area of the trolley also places the furnace wire, no less than 15, for heating the mold at the beginning of the heating and the balance of the temperature at the end.
10. Wire lifting
In order to better achieve the smooth and fast glass baking bending using 21 groups of furnace wire with automatic lifting function, (a total of 105 wire). Each group of wires can be automatically controlled and lifted.
11. Furnace heating
The furnace wire is heated by the temperature feedback to the computer after the computer automatically PLC controls the heating process, the amount of the furnace wire is manually entered by the operator in the computer interface can be stored in memory, while in the case of smooth parameters can continuously call the same parameters to produce the same product glass. (Each furnace wire power percentage requirement can be adjusted and can be controlled independently).
12. The whole furnace chamber is divided into 9 temperature measurement zones. (One of them is infrared temperature measurement, set in the middle of the furnace body)
13. All the furnace wire is installed in the quartz glass tube to prevent the oxidation skin from falling off, and all the lifting rods at both ends are made of stainless steel.
14. The two trolley box is equipped with wheels at the bottom to push and pull on the big track. There are 5 observation windows on both sides of the front and rear of the box.
15. Annealing system as an auxiliary facility, through the PLC control to assist cooling.
16. The electrical control system consists of electric control cabinet, industrial control machine, PLC, temperature sensor, power switch, etc., which is used to control the overall equipment.
17. The temperature control system consists of temperature controller, heating element, far-infrared thermometer, and temperature control module.
18. The furnace wire is heated by the pyrometer detecting the temperature of the glass surface and feeding back to the computer, and then the computer automatically controls the heating process, and the amount of the furnace wire is manually entered by the operator in the computer interface and can be memorized and saved, while the same parameters can be continuously called to produce the same product glass in the case of stable parameters.
19. The main lifting adopts SEW motor and RS chain to ensure the safety and reliability and long life of the equipment, and the main encoder adopts Japanese Omron products.
20. The observation window and annealing fan observation window adopt imported quartz glass.
21. Asbestos is forbidden to be used in the insulation material of the furnace body.
22. The inner wall of the furnace body is equipped with stainless steel panel to prevent the furnace body from falling slag during the production process. The top of the furnace body is installed with 1 set of press mold lifting device, which is composed of 4 synchronous screw transfer devices, the total weight of the screw bearing is more than 100kg, and the screw lifting stroke is 600mm.
In conclusion, When choosing an auto glass bending furnace, you want to look for features that include a wide range of temperature settings, a quick warmup time, and easy access to the controls. In addition, you want to ensure that the furnace is equipped with safety devices that prevent overheating and damage to the glass. Finally, you want to choose a supplier with good technical support, training, and even turnkey.
Contact with ZTMachine now for more information.
