Ceramic heating plate for glass bending

Abstract

The invention relates to a ceramic heating plate for glass bending, which comprises an electric heating wire and a ceramic plate, wherein the electric heating wire is arranged in the ceramic plate to form the ceramic heating plate, so as to heat the two sides of glass. Compared with the prior art, the ceramic heating plate provided by the invention has the advantages that the cost is reduced, the quality is improved, energy sources are fully used, and the functionality of a glass film is ensured.

Description

technical field [0001] The invention relates to a glass processing device, in particular to a ceramic heating plate for glass baking and bending. Background technique [0002] At present, with the development of the automobile industry, the performance requirements and demand for automobile glass are getting higher and higher. Today, when energy saving, consumption reduction, high efficiency and environmental protection production are advocated, the patent CN200720008456 proposes that Low-E (low radiation) coated glass can In the summer, it can prevent the heat radiation outside the car from entering the car, and in winter, it can ensure that the inside of the car is dissipated to the outside of the car, and at the same time, it can avoid radiation light pollution. Therefore, the application of Low-E coated glass in automotive glass has a huge advantage. Now many well-known car brands are used in high-end models. The front screen is made of Low-E coated glass. In coping wit...

AI Technical Summary

Problems solved by technology

In coping with the ever-increasing product requirements, some are unable to do what they want. The original baking and bending furnace has certain limitations in production capacity and production cost. There are defects such as high glass temperature in the furnace, large energy consumption, and high cost. Restricted production efficiency

[0003] The baking and bending process is a key process in the production process of laminated glass. The existing production equipment and heating method is to directly heat the glass to above 600°C with a heating wire, which will have a great impact on the coating quality of Low-E coated glass.

like figure 1 As shown, the Low-E coated glass includes the coating layer 1 and the glass 2 on both sides of the coating layer. The traditional furnace wire 3 heats the glass 2 on both sides. During the heating process of this traditional continuous bending furnace, the furnace wire 6 will produce Heat and infrared rays, 50%-70% of the infrared rays produced by traditional furnace filaments are near-infrared rays (700-4000nm), and ordinary soda-lime glass has a very weak absorption capacity for near-infrared rays, so most of the near-infrared rays pass through the glass and are absorbed by the coating layer , causing the coating layer to heat up faster than the glass, and the temperature even exceeds the glass, so the coating layer is easily damaged due to high temperature during the baking and bending process

Therefore, the output and yield of the coated front windshield are low

At the same time, when producing non-coated front glass, due to the very weak absorption ability of glass to near-infrared rays, the energy utilization rate is low, resulting in high energy consumption and low output.

The special baking and bending technology for manufacturing Low-E coated laminated glass is still blank in China

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