Infrared heating lamps offer advantages such as small size, rapid heating, and precise heating, making them widely used in the automotive industry for applications such as plastic welding, interior composite material molding, adhesive activation, and powder coating curing. Infrared light emitted by an infrared radiator (light source) is absorbed by materials through molecular (atomic) resonance, thus heating the object. Infrared heating, with its matched wavelength and selective penetration, directly and directionally heats the surface of an object to a certain depth, making it a highly effective method for heating, drying, and curing. Youhui infrared lamps can not only heat large areas of surfaces but can also be custom-shaped (3D) to precisely heat localized, curved workpieces according to process requirements. Main applications: (1)Interior parts: A, B, and C pillars, trunk, dashboard, door panels, inner door panel frames, sun visors (2)Exterior parts: Wheel covers, bumpers, headlights, rearview mirrors, lamp covers, roof, glass (3)Seats: Surface wrinkle removal, track and backrest welding (4)Engine system: Plastic filters, sound insulation cotton, internal welding of covers, inner caps of covers, radiators, brake fluid reservoirs, fluid cups, water tanks, fuel tanks, air ducts, etc. Application Cases: (1) Infrared Drying Retrofit of a Car Factory's Painting Line: To address the low efficiency and high energy consumption of traditional painting drying processes, the factory retrofitted its coating drying process with infrared heating. A multi-zone infrared radiator layout was adopted, with corresponding infrared wavelengths matched to the coating thickness; for example, short-wave infrared was used for thick coatings, while long-wave infrared was used for surface drying. After the retrofit, the coating drying time was reduced to 3 minutes, energy consumption was reduced by 40% compared to the traditional process, and the rate of defects such as paint bubbles and color differences was significantly reduced, greatly improving the production line's efficiency. (2) Infrared Paint Booth Application in a Car Repair Shop: Previously, the repair shop used a traditional paint booth, which suffered from long baking times and high energy consumption. Subsequently, an infrared-heated paint booth was introduced, using infrared radiation to directly act on the car body to be baked. After the retrofit, the baking time was reduced to half that of the traditional process, with a single baking cycle requiring only 1 hour. This not only improved the shop's ability to handle repair business and reduced potential equipment failures, but also optimized the workshop's working environment because the infrared lamps operate without noise or electromagnetic radiation. Compared to traditional heating methods like air convection heat transfer, infrared heating offers significant advantages in automotive painting: Energy-saving heating: Near-infrared heating lamps convert 95% of electrical energy into heat, far exceeding traditional methods. Environmentally friendly: Infrared radiation heating is environmentally friendly, allowing for rapid on/off switching and minimizing radiation loss. This clean, green, and safe heating method uses imported and domestically sourced high-quality quartz tubing, preventing corrosion, peeling, and the generation of harmful gases or odors to the heated object or environment. High-quality quartz tubing is a high-temperature resistant material with excellent plasticity at high temperatures, preventing tube bursting and ensuring a very high safety level. Long average lifespan: The average lifespan of the heating element products reaches 5000 hours, and even longer lifespans can be designed and manufactured according to customer requirements. Medium-wave heating can reach 20,000 hours. Novel heating method: Heating directly onto the object without heating the surrounding air; objects can be heated directly in a vacuum environment. This avoids the heat loss problems that occur during heat transfer between the heat source and the heated object in traditional heating methods. When using infrared radiation heating, selecting a suitable infrared wavelength that matches the absorption spectrum of the heated object yields better results. For example, short-wave infrared radiation penetrates the coating surface more effectively, heating simultaneously from the inside out. The infrared radiation heating system can be easily integrated into the production line. Through mechanical components, infrared reflectors, and a control system, external infrared radiation heating and production operations can be synchronously controlled. Easy to control: Utilizing the rapid response time and the extremely low thermal inertia of high-quality quartz tubing, the heating process can be quickly and accurately controlled. The power output of the heating process (module) can be arbitrarily set from 0-100%, achieving excellent temperature control. Simple to use, easy to install, low-cost maintenance and replacement. In the automotive manufacturing process, infrared radiation heating is a time-saving and cost-effective method for drying and curing, and it can also help improve component quality in some key processes. In the future, infrared radiation heating will be used for more components, and possibly even for the entire vehicle production process, indicating significant market potential.

The application of infrared heating tubes in 3D printing has improved industry processes and further promoted the rapid development of 3D printing. At present, material extrusion is the most widely used technology in polymer additive manufacturing or 3D printing. This process is commonly referred to as melt deposition modeling or melt wire manufacturing, and has been mainly used for 3D printing of thermoplastic materials, polymer blends, and composite materials. But this manufacturing process also has its drawbacks, which are that the functional use of these components may be limited by mechanical anisotropy, where the strength of the printed components across continuous layers in the construction direction (z-direction) may be significantly lower than the corresponding in-plane strength (x-y direction). This is mainly due to the poor adhesion between printing layers, and the reason for this result is that the lower layer has a lower temperature than the glass transition temperature before depositing the next layer. The glass transition temperature can be understood as a melting point similar to metals, but for plastics, this is a range. Using infrared heating to increase the surface temperature of the printed layer just before depositing new materials can improve the interlayer strength of the component. Preheating the powder bed using an infrared radiator is a critical step. Thermoplastic polymer powder needs to be preheated before laser sintering.

Beverage bottle production line ● Background of the case: A large beverage production enterprise has multiple beverage bottle blowing production lines. In the past, traditional heating methods were used, which had problems such as uneven heating, high energy consumption, and low production efficiency. ● Application effect: After introducing infrared heating lamps, the rapid and uniform heating of bottle preforms is achieved by precisely controlling the wavelength and energy output of the infrared lamp tube, significantly improving the consistency of bottle thickness and enhancing product quality. At the same time, the heating time is shortened, energy consumption is reduced by about 15%, and production efficiency is greatly improved. When choosing an infrared heating lamp suitable for a bottle blowing machine, the following aspects need to be considered: Wavelength ● Matching preform material: Different plastic preform materials have different absorption characteristics for infrared radiation. For example, PET plastic bottle preforms usually have good absorption effects in the wavelength range of 1.2 µ m to 1.5 µ m. Choosing an infrared heating lamp in this wavelength range can achieve rapid heating and efficient energy utilization. ● Heating depth requirement: Short wave infrared (0.75-1.4um) has strong penetration power, which can evenly heat the preform from the inside out. It is suitable for the preform preheating and forming stage, such as drying and curing of high-speed printing equipment, plastic blowing and welding, etc. Power ● Consider the size of the heating area: Select the power based on the size of the heating area of the bottle blowing machine and the number of preforms. The heating area is large and there are many preforms, requiring high-power heating lamps to ensure sufficient heat supply and uniform heating. A large hollow container blowing machine with a large heating area may require a heating lamp of over 3000W. ● Adapt to production speed: With fast production speed, it is required that the heating lamp can provide sufficient heat in a short period of time to reach the appropriate blow molding temperature for the preform. High power heating lamps or multiple sets of heating lamps should be selected for high-speed production lines. Lamp material ● Quartz glass: It has good transparency and high temperature resistance, can withstand high temperatures without deformation, and can ensure effective transmission of infrared radiation and stable heating. It is a commonly used material for infrared heating lamps. ● Tungsten wire: As a filament material, it has high melting point, high resistance and other characteristics, and can quickly generate heat and infrared radiation after being energized. It has high heating efficiency and can quickly reach the working temperature of the heating lamp. Reflecting layer ● Enhanced heating effect: Infrared heating lamps with reflective layers can reflect the infrared energy that has not been absorbed by the preform back to the surface of the preform, improving heating efficiency and reducing energy waste. The reflective layer material, such as aluminum alloy or ceramic coating, can achieve a reflectivity of about 95%. ● Optimize heating uniformity: By designing the shape and angle of the reflective layer reasonably, infrared rays can be more evenly irradiated on the preform, avoiding local overheating or insufficient heating, which helps to improve the quality and consistency of the bottle body. Brand and Quality ● Market reputation: Choosing well-known brands of infrared heating lamps usually ensures better product quality and performance. Brands such as USHIO and Philips have a high level of recognition and good reputation in the bottle blowing machine industry. ● Service life: High quality heating lamps have a long service life, reducing the frequency of equipment downtime and lamp replacement, and lowering maintenance costs. For example, the service life of some light tubes can reach over 5000 hours, which can save more time and costs for enterprises compared to ordinary light tubes. Control system compatibility ● Adjustable: The heating lamp should be compatible with the control system of the bottle blowing machine to achieve precise power adjustment. This allows for flexible adjustment of heating temperature and time according to different preform materials, specifications, and production process requirements, ensuring the best heating effect for preforms. ● Response speed: The fast response heating lamp can adjust the output power in a timely manner according to the temperature changes of the preform during the production process, improving production efficiency and product quality. For example, some shortwave infrared heating lamps can quickly heat up or cool down within 1-3 seconds, making the heating process control more flexible.

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.

Infrared heating lamps can also be applied to EVA film heating. The following is the relevant introduction: The principle of infrared heating lamp for heating EVA film The infrared radiation emitted by the infrared heating lamp is absorbed by the EVA film and converted into heat energy, causing the temperature of the film to rise. After absorbing infrared energy, the molecules in EVA film move more vigorously, generate heat through intermolecular friction, and achieve uniform heating. Key points for choosing an infrared heating lamp • Wavelength selection: EVA film has good absorption characteristics in the near-infrared band (0.75 µ m-1.5 µ m). Choosing an infrared heating lamp in this wavelength range can enable the film to quickly absorb energy and improve heating efficiency. • Power determination: Select the appropriate power heating lamp based on the width, thickness, and heating speed requirements of the EVA film. Generally speaking, when the width and thickness of the film are large, or when rapid heating is required, a higher power heating lamp should be selected. For example, for an EVA film with a width of 2 meters and a thickness of 0.5 millimeters, in order to reach the predetermined temperature in a short period of time, an infrared heating lamp group with a total power of 5-10 kilowatts may be required. Heating uniformity: To ensure uniform heating of EVA film, an infrared heating lamp with a reflective cover can be selected, and the position and angle of the heating lamp should be arranged reasonably. The reflector can reflect infrared rays onto the thin film, reducing energy loss and making heating more uniform. For example, by using multiple low-power heating lamps evenly distributed above the film and optimizing the design of the reflector cover, the surface temperature deviation of the film can be controlled within a small range. Application advantages • Efficient and energy-saving: The infrared heating lamp directly radiates energy onto the EVA film, which can be quickly absorbed and converted into heat energy. Compared with traditional heating methods, it can reduce the loss of heat during transmission and has a significant energy-saving effect, generally saving 20% -30% of energy. • Fast heating speed: It can quickly reach the required temperature of EVA film and improve production efficiency. For example, on some EVA film production lines, the use of infrared heating lamps can shorten the heating time to 1/3-1/2 of the original. • Accurate temperature control: With a high-precision temperature control system, the infrared heating lamp can accurately control the heating temperature of EVA film, which is conducive to ensuring the stability of product quality. For example, the temperature control accuracy can reach ± 1 ℃, effectively avoiding changes in film performance caused by temperature fluctuations.

As we all know, leather can be roughly divided into two categories: raw leather and artificial leather. With the improvement of living standards, people are increasingly choosing leather products when buying leather shoes, belts, wallets, shoulder bags, handbags and other leather products. This has caused the current market demand for raw leather to increase year by year, and the quality requirements for raw leather are also getting higher and higher. It comes from the animal cortex, which is located under the epidermis, between the epidermis and the subcutaneous tissue. It is the main part of the raw leather, and its weight and thickness account for about 90% of the raw leather. The entire leather production process is very complicated, among which leather drying is a very important link.   Infrared heating and drying leather has the advantages of high efficiency and energy saving. Usually a drying tunnel composed of multiple infrared lamps is used, and the leather passes slowly in the tunnel. For leather with a larger area, the number of infrared lamps can be increased or the power can be increased.   Infrared heating principle Infrared is an electromagnetic wave with a wavelength range of 0.75 microns to 1 millimeter. When infrared rays are irradiated on leather, the molecules in the leather absorb the energy of infrared rays, intensifying the molecular movement, thereby generating heat and achieving the purpose of heating.   Infrared lamps have many applications in the leather industry, mainly including the following aspects: • Drying After the leather is processed by tanning, dyeing, etc., excess moisture needs to be removed. The infrared rays generated by infrared lamps can penetrate the leather to a certain depth, so that the moisture inside the leather quickly absorbs heat and converts into water vapor, accelerates the drying process, and dries evenly, which can effectively avoid cracking and deformation of the leather surface due to local overheating or drying too quickly.   • Color fixation After the leather is dyed, the use of infrared lamps for heating treatment can make the dye molecules better combine with the leather fibers, thereby improving the fastness and uniformity of the dyeing, making the color of the leather more vivid and lasting.   • Softening For some harder leathers, the heat of infrared lamps can intensify the movement of leather fiber molecules, making them softer, increasing the flexibility and plasticity of the leather, and facilitating subsequent processing, such as cutting and sewing.   • Sterilization and Disinfection The heat generated by infrared lamps can kill bacteria, mold and other microorganisms on the surface of leather to a certain extent, which helps to improve the hygienic quality of leather, prevent leather from getting moldy and deteriorating due to the growth of microorganisms during storage and use, and extend the service life of leather.   Infrared Heating Advantages Quartz infrared radiators have proven to be very effective for leather drying, offering several significant advantages over traditional methods. Here are the main features and advantages of using high-efficiency infrared heaters for leather drying:   1. Fast Drying Process Using high-efficiency infrared heaters can significantly speed up the drying process compared to traditional steam hot air convection and heat conduction dryers. The energy of the infrared radiator is transmitted directly to the leather surface without the need for an intermediate medium. Some radiators can penetrate the leather pores, with a penetration depth of 0.1 mm to 2.0 mm. The radiator in the pores is almost completely absorbed after multiple reflections by the pore walls, resulting in extremely high heat transfer efficiency. For the same leather, drying with infrared radiators can significantly shorten the drying time.   2. High-quality drying Quartz infrared radiators have excellent drying quality. Because the surface and inner layers of the leather absorb the far-infrared radiator at the same time, the drying process is uniform, thereby improving the physical properties and color of the leather after drying. For example, in the manufacture of leather products, maintaining uniform drying is essential to ensure the quality and aesthetics of the final product.     3. Energy saving Compared with other radiators and electric heating drying methods, quartz infrared radiator drying is more energy-efficient. It can save more than 50% of conventional energy consumption. In addition, the infrared radiation elements in these dryers have a simple structure, which reduces the size of the equipment, makes operation easier and safer.   Precautions • Infrared heating equipment should be regularly maintained and calibrated to ensure uniformity and stability of heating. • Accurately control the heating temperature, time and distance according to the type, thickness and process requirements of the leather to avoid damage to the leather due to excessive heating. • When using infrared heating equipment, operators need to wear protective glasses to prevent infrared rays from causing damage to the eyes.