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Tube Furnace Electric heating element
1, when the muffle furnace first use or long-term use after re-use, must be oven. Oven time should be room temperature 200 ℃ for four hours. 200 ° C to 600 ° C for four hours. When used, the maximum temperature shall not exceed the rated temperature, so as not to burn the heating element. It is forbidden to inject various liquids and easily dissolvable metal into the furnace. The muffle furnace is preferably operated below 50 ° C below the maximum temperature, and the furnace has a longer life.
2, muffle furnace and controller must be in the relative humidity of not more than 85%, no conductive dust, explosive gas or corrosive gas work place. Where a metal material such as grease is required to be heated, a large amount of volatile gas will affect and corrode the surface of the heating element to destroy and shorten its life. Therefore, heating should be timely to prevent and do a good job sealing containers or appropriate openings to be excluded.
3, muffle furnace controller should be limited to the ambient temperature range of 0-40 ℃ use.
4, according to technical requirements, regularly check the electric furnace, the controller of the wiring connection is good, indicating whether the pointer movement when the stuck retention phenomenon, and the use of potential difference calibration instrument due to magnet, demagnetization, wire, shrapnel Fatigue, balance damage caused by the increase in the error.
5, thermocouple do not suddenly pulled out at high temperatures to prevent the burst burst.
6, often keep the muffle furnace furnace clean, timely removal of the furnace oxide and the like.
1) muffle furnace thermal processing, industrial workpiece processing, cement, building materials industry, the small workpiece thermal processing or processing.
(2) muffle furnace medicine industry: for drug testing, medical sample pretreatment.
(3) muffle furnace analysis of the chemical industry: as a water quality analysis, environmental analysis and other areas of sample processing. Can also be used to carry out oil and its analysis.
(4) muffle furnace quality analysis: for the determination of moisture, ash, volatile, ash melting point analysis, ash composition analysis, elemental analysis. It can also be used as a general ashing furnace.
Long-term use, but also pay attention to the maintenance and maintenance of muffle furnace equipment, the following is concerned about the muffle furnace maintenance should pay attention to the following:
1, muffle furnace cleaning electrode protection ring around the adhesion of the lack of material and lumps and the end wall of the debris and the end of the wall of the accumulation of material.
2, muffle furnace resistance furnace furnace at the end of the water with water, the removal of pillars and small walls. When removing the small wall, it is strictly forbidden to lift two furnace walls at once. Until the bottom of the furnace and the furnace under the electrode all the goods into the pool, the side quasi-lifting pillars and furnace wall.
3, muffle furnace resistance furnace furnace wall to be stable, the gap between the two walls to be symmetrical.
4, muffle furnace installation pillars and furnace wall, you must use a lock hook. And before the lifting in the bottom of the shop spread of wood powder, to protect the bottom and to prevent leakage.
5, muffle furnace pillars on the insulation tiles off 1/3 and the furnace wall ends fall off three pieces of brick, should not continue to use, should be repaired immediately.
6, muffle furnace clean up the pillars of the pit, the grab and the operator is strictly prohibited at the same time into the pit, to prevent accidents.
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