Method of manufacturing low density insulting refractories专利检索-熟石灰水硬性胶凝材料粘合剂建筑材料专利检索查询-专利查询网

Method of manufacturing low density insulting refractories

阅读：943发布：2022-11-17

专利汇可以提供Method of manufacturing low density insulting refractories专利检索，专利查询，专利分析的服务。并且Mineral wool, aluminum powder, hydrated lime, and plastic refractory clay are dry blended to form a homogenous mix, the homogenous mix blended with water and cast in molds, the molded mix vibrated and allowed to expand and set after which the molded article is dried and fired. In forming insulating refractories for higher temperature use requirements, pyrophyllite or alumina may be substituted for some of the refractory clay.，下面是Method of manufacturing low density insulting refractories专利的具体信息内容。

权利要求

2. A method in accordance with claim 1 wherein up to 50 percent by weight of a fired sizing dust of the composition of the refractory produced in accordance with claim 1 is dryblended with the ingredients recited in claim 1.

3. A method in accordance with claim 2 wherein the slab is dried to a moisture content of 20 to 25 percent by weight.

4. A method in accordance with claim 2 wherein said inorganic fiber is mineral wool and wherein said aluminum powder is of extremely fine, nonleafing particle size.

5. A method in accordance with claim 4 wherein the water to dry mix ratio is about 7 to 15 parts water to 10 parts dry mix and wherein the water temperature at addition is between about 100* F. and 140* F.

6. A method in accordance with claim 5 wherein kaolin clay is utilized and wherein the slab is fired at a temperature in the range of about 2,200* to 2,400* F. for a minimum firing time of about 2 hours.

7. A method in accordance with claim 5 wherein a mixture of kaolin clay and pyrophyllite is utilized and wherein the slab is fired at a temperature in the range of about 2,450* to 2,650* F. for a minimum firing time of about 4 hours.

8. A method in accordance with claim 5 wherein a mixture of kaolin clay and alumina is utilized and wherein the slab is fired at a temperature in the range of about 2,650* to 2,850* F. for a minimum firing time of about 6 hours.

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Method of manufacturing low density insulting refractories

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