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.

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.

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.

Infrared heating tubes are basically characterized by infrared rays. It is actually a tubular heater that uses the working principle of infrared rays. Generally speaking, its performance is relatively stable, its quality is high, its thermal efficiency is high, and its power density is relatively high, so it can help products heat up quickly and help enterprises save time and electricity with high efficiency. Relatively speaking, this heating technology can be called a more energy-efficient heating method in the market, and it can also save electricity and energy, helping enterprises reduce overall operating costs. Also because of its energy-saving heating characteristics, it has been listed as a key promotion project in my country, and it has also achieved very good economic benefits at present.   Especially in this era of countries vigorously advocating energy conservation, emission reduction and green industry, the emergence of infrared heating tubes is very in line with the current market needs, helping industries reduce energy consumption and playing a role in environmental protection.   The infrared heating tube does not need to be dried in an open or sealed environment, because the drying material has a high absorption efficiency for infrared rays, while ensuring the drying quality and efficiency. In addition, short wave, medium wave and other wavelengths can match the absorption spectrum of most materials very well, and can effectively meet the needs of workpieces made of different materials, and can tailor-made heating plans for customers based on the performance of the heated object.   Short-wave and medium-wave radiation heating use a simple and direct heat transfer method that is more energy-saving. The feature of "inside-to-outside" simultaneous heating can improve the quality of the workpiece and is suitable for most heated objects. Therefore, infrared heating tubes have the advantages of excellent thermal efficiency, resource saving, simple installation, cleanliness, and high cost performance.   Customer case Customer's problem: The customer is an electroplating factory. The previous method was to use commercial steam to dry electroplated parts by hot air convection. Commercial energy consumption is high, costs are high and commercial steam supply is unstable, affecting production efficiency;   After receiving the request, we quickly made a plan for the customer, customized short-wave infrared heating lamps according to the infrared absorption wavelength of the material, and installed a lamp arrangement every 30cm at the end of the drying room.     After switching to infrared heating, the following effects are achieved: ●Space saving - Originally, using hot air required a 45m long production line, but replacing infrared lamps only requires a 10m long production line.   ●Time saving - When using hot air, the drying effect can be achieved in 15 minutes at a speed of 3m/min. Using infrared lamps, under normal production line speed, if the 60KW is turned on to 3m/min, there will be local moisture at about 10m. If the full power is turned on, the drying effect is very good. If the moisture content is less than 50%, the production requirements can be met.   ●Energy saving - The original use of hot air consumes 0.5 tons of steam per hour and is unstable; there are 33 infrared lamps, each 2.5KW, and the total power is 82.5KW. Stable, clean and efficient.   ●Cost saving - the original use of hot air steam was 430 yuan/ton. You need to pay 215 yuan per hour, and if the infrared is turned on at full power, it is 80 yuan/hour.