Dust-free insulation material and method for producing same
AssigneeJoong-Il Materials Inc.
InventorsTae Jung LEE, Chang Dae OH, Byung Gwan GWAK
Life of this patent
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Abstract
The present disclosure relates to a dust-free insulating material. The dust-free insulating material coating solution is provided for application to an insulating material comprising silica and alumina. The coating solution comprises 51.4 to 62.9% by weight of a silica sol, 12.9 to 15.7% by weight of an alumina sol, and the balance being a solvent.
Claims5
A dust-free insulating material coating solution for manufacturing a dust-free insulating material, which is coated on an insulating material containing silica and alumina, and comprises:
- 51.4 to 62.9% by weight of a silica sol;
- 12.9 to 15.7% by weight of an alumina sol;
- and
- a balance of a solvent,
- wherein water is applied as the solvent so that environmental problems and safety problems can be prevented during the manufacture of a dust-free insulating material, and an increase in drying and firing time required to completely remove organic solvents and organic materials can be prevented.
A method for manufacturing a dust-free insulating material, comprising:
- an insulating material preparation step of preparing an insulating material containing silica and alumina;
- an insulating material coating step of coating the insulating material with a dust-free insulating material coating solution to manufacture a coated insulating material coated with the dust-free insulating material coating solution;
- a firing step of heating and firing the coated insulating material;
- a first polishing step of polishing the surface of the coated insulating material that has completed the firing step with a first polishing paper;
- and
- a second polishing step of polishing the surface of the coated insulating material that has completed the first polishing step with a second polishing paper.
Dependencies are inferred from the claim text.