Why should resistance high temperature furnace install silicon molybdenum rod? What precautions does it have? The following is the answer analysis.
High temperature resistant imported Morgan fiberboard or corundum brick shall be used as lining material of resistance high temperature furnace.
The hot furnace gas leaking from the cold end will not only increase the heat loss of the furnace, but also burn out the conductive belt clamp and lead clamp. Therefore, asbestos chuck should be used as far as possible.
As the silicon molybdenum rod is a brittle material with low bending strength and can not bear impact, protective measures should be taken to prevent fracture during installation. When connecting the conductive tape, the asbestos chuck (or porcelain chuck) must be installed first, and the clamping force should not be too large.
In order to avoid the mechanical stress caused by loading and unloading, the plug brick should be a single brick made of foam corundum brick.
Insert the plug brick with silicon molybdenum rod into the gap prepared at the furnace top, and the plug brick should protrude out of the furnace top, so as to facilitate disassembly.
Connect the conductive belt with the connection bracket that has already been prepared, but the tension and unnatural mechanical stress of the conductive belt should be avoided.
In order to avoid the possible sagging deformation of silicon molybdenum rod due to thermal expansion and cold contraction of asbestos chuck, the refractory slurry mixed with water glass can be used to coat the joint, so as to fix it firmly.
During hoisting, the distance between the cone junction of the heating part and the furnace wall is about 25 mM-3 mm, the cold end shall be exposed 75 mm outside the furnace top, and the lower end of the heating part to the furnace bottom shall not be less than 50 mm.
The spacing of silicon molybdenum rods in the furnace shall not be less than the center distance of the element itself.
Attention should be paid to the gravity balance of the two cold ends and wiring parts during hoisting, otherwise the heating part will be bent and deformed.
The above are the precautions for installing silicon molybdenum rod in resistance high temperature furnace. I hope my answer can help you. If you have any doubts, please visit our website for details at http://unimaxservices.com/