Drawer-type die heating furnace is a periodic operation furnace for heating aluminum profile extrusion die. The furnace body is made of < national standard > section steel welded. The furnace lining is an energy-saving thermal insulation material. The mold is loaded on a horizontal cart driven by a cylinder, and the furnace door is installed on the cart for easy operation. A suitable thermal circulation fan is installed in the middle of the furnace body to ensure the thermal performance of the furnace. Thermocouple is used as temperature control and over-temperature protection alarm of furnace
Technical Description
- There is sealing material around the furnace door. Reasonable structure and good sealing.
- The material truck adopts a high and low wheel design, is powered by a cylinder, and is installed at the normal temperature part of the furnace bottom; The part of the material truck in the furnace is a double stainless steel cylindrical structure with double wheels with sliding friction, which is connected with the main beam of the material truck by hinge, and there is no over-positioning phenomenon; The mold rests between two cylinders and is placed smoothly without turning over or blocking accidents.
- The fan is stably installed, there is no abnormal sound, and the noise is less than 80 decibels (within 1m)
- The furnace lining plate is made of 3mm201 stainless steel plate welded on the inner frame and overlapped
- The furnace shell is made of national standard steel to ensure sufficient rigidity and meet the requirements of long-term full-load use of the equipment.
- The heating element adopts tower structure, which is safe and reliable and convenient to assemble and disassemble
Temperature control mode
- Temperature control mode: PID temperature control, heat preservation timing prompt, three-level temperature protection (three-level protection: temperature control protection, contactor protection, power circuit breaking protection. Stopping heating when the temperature in the furnace reaches the set temperature; When the temperature exceeds the set temperature by 8-10 ℃, disconnect the heating power supply relay and send out an audible and visual alarm signal; When the temperature in the furnace is 15-20 °C higher than the set temperature due to relays or solid-state relays, disconnect the heating power supply relay and send out an audible and visual alarm signal. The circuit breaker has a trip function and is able to trip if needed).
- Thermocouple distribution: 1 thermocouple on the top of the furnace body, which can be used for control and alarm at the same time
- The heat source of the infrared mold heating furnace is nickel-melted alloy heating wire or energy-saving plate, which is characterized by high efficiency and energy-saving. An infrared radiation plate is installed behind the nickel-melted alloy heating wire, which can effectively reflect heat to the furnace. The radiation plate and the nickel-melted alloy heating wire form a set of infrared heating body, which radiates heat to the furnace in the form of electromagnetic energy, and the mold absorbs and converts the electromagnetic energy into heat energy. The mold frame is designed with high temperature resistant stainless steel lattice structure, which has good mechanical strength, and good ventilation and light transmission effects.
Advantages of energy-saving infrared mold heating furnace equipment:
- Protect the safety of the mold: Uniform and appropriate speed heating, the fan makes the air flow avoid problems such as mold cracking and oxidation caused by rapid heating, reduces unnecessary mold repair, and greatly prolongs the service life of the mold.
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Energy saving,Reasonable drawer tray design greatly reduces the loss of heat energy Effective utilization of heat energy, the self-developed infrared radiation plate absorbs heat and then directly radiates to the furnace to heat the mold
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Thermal insulation measures of high density polymer glass fiber materials can effectively reduce heat loss, thus achieving the purpose of direct energy saving fast and comfortable operation: The drawer-type pick-and-place mold avoids the physical discomfort caused by hot air rising to the body when the traditional mold is opened. Thereby achieving the purpose of improving the working efficiency of safe operation.
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High efficiency: heating multiple sets of molds at one time, avoiding the situation that there is no hot mold change when the mold change frequency is high
Instructions for use of
- When the new mold furnace is used, it needs to be heated to 480 degrees in different periods. The humidity of the insulation material of the main body of the new furnace is high, and rapid heating leads to rapid expansion and deformation of the main body. Therefore, the new furnace is heated in five stages when it is first used. In the first stage, the heating is controlled at 200 degrees for 2 hours; In the second stage, the heating is controlled at 300 degrees for 2 hours; The third stage is controlled to heat at 400 degrees for 4 hours; In the fourth stage, the power supply is disconnected and the furnace door is half open, so that the smoke and moisture in the furnace can be discharged in time to prevent local carbonization of the inner chamber and reduce the heat preservation effect.
- The fifth stage of heating is set to 480 degrees for heating, and the temperature of putting into the mold is reached in about 90 minutes.
- Put it into the mold, heat it for one hour and use it out of the oven
- During use, when the mold enters the furnace, it is necessary to avoid gravity falling, damage to the mold body, shortening the service life, and easy to damage the guardrail.
- During use, customers cannot change the heating principle at will. If the temperature rises too fast, the mold will be damaged by oxidation quickly, and the temperature rises too slowly, which will affect the production progress. Therefore, when designing this product, the inner bore, infrared radiation material, mold frame, and heating wire are designed according to the grade functions of the product.
