Application of infrared heating lamps in the glass industry

Case 1: Glass coating curing to improve efficiency and quality

An architectural glass manufacturer primarily produces Low-E coated glass for high-end building curtain walls. Previously, they used traditional hot air heating for post-coating curing, which suffered from slow heating speeds, high energy consumption, and unstable film adhesion, hindering production efficiency and product quality.

The introduction of infrared heating lamps significantly improved this situation. Medium-wave infrared heating lamps with specific wavelengths were selected based on the characteristics of the coating material. Once activated, the lamps rapidly and precisely radiate energy to the coating layer, activating the film molecules and achieving rapid curing from the inside out. Heating time has been significantly reduced from 15-20 minutes per sheet of glass to 5-8 minutes, increasing production efficiency by at least 50%. Furthermore, the uniform infrared heating results in more consistent film curing. Adhesion tests showed a 30% improvement in film adhesion, effectively reducing the risk of delamination during transportation and installation, and increasing product yield from 80% to over 90%. At the same time, the energy consumption of infrared heating lamps is reduced by 35% compared with traditional hot air equipment, which greatly reduces production costs and enhances product market competitiveness.

Case 2: Glass hot bending to achieve precise processing

A company specializing in automotive glass production encountered challenges with the hot bending process for custom-shaped automotive glass. Traditional heating methods struggled to achieve rapid and precise localized heating of the glass, resulting in uneven heating and prone to deformation and cracking during the bending process. This led to a scrap rate as high as 20%, and low production efficiency, making it difficult to meet growing market demand.

The company adopted a short-wave infrared heating lamp solution. Through a carefully designed lamp layout and intelligent temperature control system, short-wave infrared light can be precisely focused on the area of glass to be bent, rapidly heating that area to its softening point (approximately 650-700°C). Because short-wave infrared light heats up quickly (reaching its highest power output in 1-3 seconds), its thermal response speed is over five times faster than traditional heating. Combined with high-precision molds, it enables precise bending of complex glass shapes. This reduced bending time from 8-10 minutes per cycle to 3-5 minutes, significantly improving production efficiency. Moreover, the uniformity of glass heating has been significantly improved, and the scrap rate has been reduced to less than 8%, effectively improving product quality and production efficiency, and meeting the needs of automobile manufacturers for high-quality and diversified automotive glass.