Overview of Infrared Heating Oven:

High temperature infrared heating oven is mainly used for thermal protection assessment of insulation coating materials. During its work, it heats one side of the thermal protection coating at a preset rate and measures the temperature rise of the other side to test the insulation performance of the insulation material. In this way, the thermal protection effect and grade parameters of the coating can be obtained, so as to accumulate experience for the subsequent protection coating research and development.

Customer Technical Requests:

• Test piece size: 60mmx60mmx10mm sheet or 100x100x10mm
• Test piece surface temperature: >1200℃
• Continuous working time of equipment: 1h
• Heating rate: minimum 20℃/S, maximum 50℃/S
• Automatic recording of heating surface and back temperature of sample

Infrared Oven Parts:

This infrared heating device mainly consists of five parts: infrared heating chamber, infrared radiation heating lamps, SCR temperature controller, temperature control unit and water cooling module.

1) Infrared Heating Chamber: The inner and outer structures of the infrared heating chamber are both square, which are mainly composed of furnace body, furnace door, furnace crucible, specimen fixing frame, observation window, furnace body fixing frame, infrared heating tube, manifold, protective cover, etc., as shown in the figure. The outer layer of the heating chamber is polished stainless steel plate, and the reflective part of the inner layer is mirror stainless steel plate. The furnace crucible is made of ceramic fiber cotton as raw material by vacuum forming technology, and the heating permanent line changes 1350℃*24h <-3% to meet the use requirements. An infrared thermometer fixing device is set on the outer layer of the heating chamber for convenient installation of temperature control and infrared thermometer.

2) Infrared Heating Lamps: Infrared radiation heating lamp is one of the most advanced, highest thermal efficiency and most energy-saving products of contemporary technology. Its matched wavelength infrared radiation has the remarkable characteristics of high intensity, high thermal efficiency, high penetration and low energy consumption.

The thermal inertia of infrared radiation heating lamp is very small. After power-on, it can reach 50% of the rated power in 0.8 seconds, 80% of the rated power in about 1 second, and the rated power in about 2 seconds. The rapid heating and cooling. The infrared lamp is coated with directional reflection layer, which can greatly improve the thermal efficiency and reduce the temperature of the reflector. It also has the characteristics of small size, high power and long service life. A single 220V, 4KW, 520mm long and 12mm diameter white reflective tungsten heating lamp is selected for infrared radiation heating.

Under standard working conditions, the service life of the lamp tube can reach more than 5000 hours, but the temperature of this equipment test has reached 1200℃, which is close to the highest critical temperature of the heating tube. Then the service life of the lamp tube will be greatly shortened, and more spare parts need to be added as inventory.

Infrared radiation heating tube is made of glass. It should be handled lightly during installation and transportation, and bumping is prohibited. During transportation, the equipment should be disassembled and packed separately for proper transportation and storage. After arriving at the site, it can be installed and debugged.

3) SCR Power Controller: Triac temperature control technology - High Efficiency, Energy Saving

From economical analog trigger to powerful digital, with built-in menu, trigger, from wide space,

maintenance easy chassis Triac to tightly packed integrated Triac power controller, all of high quality and finely polished in fabrication process. The Triac temperature controller from us applies the latest design concept and many new technologies. It has the advantages as follow.

☆ Integrated with fuzzy logic, PID controlling technology and modulated. It is self adjustable and self accommodation.

☆ 16-bit CPU is used in the digital circuit, fast and accurate.

☆ Optical-electrical shield is applied to minimize interferences, improves stability.

☆ The special Cycle change calculation and Point change calculation technology make power output changes smooth.

☆ Bright digital tube to display the output percentage, very intuitive.

☆ Different input signal acceptable （4～20mA、0～5V、1～10V). Could be manually adjustable.

☆ Can be toggle between AUTO-RUN AND MANUAL-RUN anytime while running. Its’ a non-disturbing switch over.

☆ Soft starting time adjustable, minimize the surge load of the power network.

☆ Alert on over temperature, over voltage and short circuit protection.

☆ Equipped with COM interface, simplifies remote control and so system networkable.

☆ No attendant auto run module.

☆Ｙ, Ｙ。and▲connection selectable according to power loaded.

☆ Control accuracy up to 2‰ and display accuracy 1％.

Remarks: Functions are of model dependable

4) Temperature Measurement Units: The temperature measurement unit consists of two infrared thermometers and an AI artificial intelligent industrial regulator, and a paperless recorder. One of them is used to test the temperature of the test piece in the furnace, which is composed of an infrared thermometer and an AI artificial intelligent industrial regulator, to adjust the working of the infrared heating tube and complete the temperature rise and fall; the other is used to test the temperature of the back of the test piece, which is composed of an infrared thermometer and a paperless recorder, to complete the test and record the temperature of the back. The paperless recorder is equipped with a USB port and a 485 interface, which can conveniently export data or connect to a computer.

5) Water-Cooling System: Due to the small internal space and high temperature of the test box, it is very easy to cause aging of the infrared heating tube under high temperature. A water-cooling module is installed behind the installation part of the infrared heating tube. It consists of a set of radiators and inlet and outlet water connections. The inlet is connected to tap water (preferably softened water), and the outlet is connected to the drainage pipe, not recycled.