How to Choose Vacuum Ladle Castables

A vacuum lifting package is mainly composed of a package body, package cover, lining, aluminum suction tube, ejector, boom, beam, turbine, manual transmission mechanism, inverted aluminum port gland device, etc. It is a commonly used type in the aluminum and electricity industry. Equipment, because the high-temperature liquid aluminum is shipped in the lift package, the main place where refractory castables are used is in its lining. It is necessary to build a refractory castable that can withstand high temperatures and liquid aluminum, but the pouring of vacuum lift packages How should materials be selected?

First of all, because the activity of aluminum water is relatively high and has strong permeability when we choose refractory materials, we must ensure that the refractory materials have the functions of resistance to penetration, erosion resistance, impact resistance, and wear resistance. At present, the refractory materials we commonly use The material is mainly non-stick aluminum refractory materials. The non-stick aluminum castable is made of high-alumina bauxite clinker as aggregate, high-alumina bauxite clinker, magnesia mixed and co-ground as powder, and water glass as binder. It has good shock resistance, permeability resistance, and impact resistance. It is a refractory castable commonly used in the aluminum and electricity industry.

Non-stick aluminum castables greatly reduce the wettability of aluminum, alloys, and slag to refractory materials, improve the corrosion resistance and erosion resistance of refractory materials to aluminum liquid containing salt, flux, and other chemical components, and are non-stick to aluminum. The slag-removing function prevents aluminum, alloys, and molten slag from penetrating refractory materials, thereby extending the life of the furnace lining.

In addition to the non-stick aluminum castables mentioned above, the castables used in the aluminum and electrical industry include steel fiber castables and mullite castables, which are used in different locations and occasions according to different use environments, so we are When choosing, you must make your choice based on the environment, temperature, furnace type and product performance.