Magnesia refractory castable pouring method

 1. Vibration casting with 30~50mm vibrating rod.

2. Firstly, the bottom of the package is filled with the material, and the vibrating rod is used to level the vibration to ensure the thickness of the casting layer or slightly thickened.
3. After the bottom of the package, after placing for 2~4 hours, place the core, the core should be placed in the middle of the ladle, not offset, and should be leveled, the surface of the core should be cleaned, treated to be slippery and oiled.

(1) The vibrating bar must not touch the core and the heat insulating material, so it should be kept at a certain distance from the core and the heat insulating material, but it should not be larger than 50mm.
(2) The penetration depth of the vibrating bar shall not touch the underlying castable, but the distance from the lower layer shall not exceed 50 mm.
(3) The distance of the insertion point of the vibrating bar should not exceed 200mm, keep the uniform and dense vibration, and slowly lift the vibrating bar when it is pulled out. Do not pull out suddenly to avoid leaving holes.
(4) A special person should be in charge of mastering the vibrating rod. If it is found that there are unqualified quality requirements, it should be treated in time to continue construction.
(5) Pouring the wall of the package is usually two rounds of material vibration, each feeding thickness is about 250mm, to achieve uniform cloth, and pay attention to uniform vibration, avoid leakage vibration, vibration should be dense.

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Article Source：Magnesia refractory castable pouring method
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