Atmosphere Protection Experiment Muffle Furnace

Atmosphere Protection Experiment Muffle FurnacePrice,Atmosphere protection furnace, also known as atmosphere furnace, evolved from muffle furnace. The main purpose is to introduce a specific gas for heat treatment during high-temperature sintering, or to protect the heat-treated sample from oxidation. Atmosphere protection is mainly used in the market to prevent oxidation. According to the different types of furnaces, they can be divided into tubular atmosphere furnaces and box type atmosphere furnaces. Among them, the tubular atmosphere furnace uses quartz tubes for low temperature and corundum tubes for high temperature according to different temperatures, with flange seals at both ends; Box type atmosphere furnaces are mostly integral welded boxes lined with inorganic insulation materials, and the vertical furnace doors are sealed with silicone. There are usually the following devices on the atmosphere protection furnace: inlet pipes, valves, pressure display devices, and vacuum acquisition devices.

Product Name: Atmosphere Furnace Atmosphere Electric Furnace High Temperature Atmosphere Furnace

The box type atmosphere furnace body adopts a double-layer furnace shell structure, with fans installed between the double-layer furnace shells to raise and lower the temperature, and the surface temperature of the furnace shell is low. Can be used for product sintering experiments under inert gases such as nitrogen and argon.

Atmosphere Protection Experiment Muffle FurnaceThe furnace material is made of imported polycrystalline alumina fibers, which can save 50% energy. It can be heated on both sides or up and down, and the temperature field is uniform. The heating element adopts silicon molybdenum rod or high-temperature molybdenum wire.

The temperature control system of the box type atmosphere furnace adopts artificial intelligence regulation technology, which has PID regulation, fuzzy control, self-tuning ability, and can program various heating programs. The temperature display accuracy of the control system is 1 ℃, the temperature field stability is ± 5 ℃, and the heating rate of 1-20 ℃ can be set arbitrarily.

Main structure and configuration of box type atmosphere furnace:

1Furnace shell: double-layer furnace shell structure, built-in fan and air duct, ensuring a surface temperature of 60 degrees Celsius on the furnace shell

2. Three sided heating, multi-faceted heating, forms a uniform temperature field in the furnace with a temperature uniformity of ± 5 ℃. Avoid defects such as cracking and inconsistent annealing of annealed workpieces caused by uneven temperature field.

3. Furnace: Composite lightweight ceramic fiber is used as the refractory layer, with heat-resistant steel fixed inside and aluminum silicate fiber as the insulation layer on the outer layer; The total thickness of the refractory layer and insulation layer reaches 200mm, providing excellent insulation effect for the electric furnace. The furnace structure can withstand rapid cooling and heating impacts, making it suitable for electric furnaces that require high-temperature opening. Frequent opening of the furnace door at high temperatures ensures that the furnace does not crack or deform, and there is no risk of collapse. The all fiber furnace structure greatly reduces the weight of the electric furnace. Due to the low heat storage capacity of the fiber lining, the thermal conductivity coefficient is only 0.8 Compared with traditional refractory brick electric furnaces, the heating rate is faster and more energy-efficient.

How to maintain the atmosphere furnace in daily life:

1. Regularly check whether the contact of each connector is good.

2. According to the process setting temperature, power on for heating and insulation.

3. By investigating the flow rate and controlling the outlet temperature at 40 ℃ cgh.

4. The workshop must be equipped with 1/2 pipe to ensure a water source pressure of 0.2MPa.

5. Connect the inflation port and inject CO2 and other protective gases. Stop inflation when the pressure gauge of the atmosphere furnace indicates 0.02-0.04 MPa.

6. Keep the furnace clean and promptly deal with metal oxides, slag, and impurities inside the furnace. Caution should be exercised when loading and unloading workpieces to prevent damaging the silicon molybdenum rod.

7. When the furnace temperature rises, attention should be paid at all times. If the pressure is high, the vent valve should be intermittently opened to keep the pressure inside the furnace chamber below 0.1MPa. At this time, impurities such as oil fume in the chamber can be discharged accordingly.

8. Silicon molybdenum rods can be corroded by alkali, alkali metals, silicic acid, and boron compounds at high temperatures. Water vapor has a strong oxidizing effect on them, and hydrogen and gases containing a large amount of hydrogen can decompose silicon molybdenum rods at high temperatures. Therefore, caution should be taken when using them.

9. The atmosphere furnace implements bright annealing. When the temperature rises, the vent valve is opened, and then protective gas is filled. The flow rate increases from small to large. When the pressure inside the atmosphere furnace is positive, all valves are closed. This process should undergo process testing,

10. When using, do not exceed the rated power. Can it be installed and maintained correctly? The temperature of the atmosphere furnace should not be too high for use. It is prohibited to load damp workpieces into the furnace, and heated workpieces containing excessive moisture should be dried in advance.