An iolite porcelain electronic flat-irons soles with low hot expansion factor

Abstract

The invention discloses a steinheilite ceramic bottom plate of electric iron with low heat expansion coefficient. The invention takes the steinheilite (2MgO.2Al 2 O 3.SiO2) as a principal crystalline phase and is added with industrial alumina, titanium dioxide, strontium carbonate, yttrium oxide and silicon dioxide as auxiliary materials; the weight percentage of the materials are as follows: 82 to 88 percent of steinheilite, 3 to 6 percent of alumina, 2 to 3 percent of strontium carbonate, 3 to 6 percent of titanium dioxide, 0 to 2 percent of yttrium oxide, and 1 to 3 percent of silicon dioxide; when the ceramic material is produced, the raw materials are weighed according to the formula to be made dry grinding and mixing, then are molded and incinerated according to the hot pressure casting production process, finally the ceramic bottom plate of the electric iron can be produced by grinding and polishing the working surface of the ceramic bottom plate. The invention can effectively improve the rigidity and the surface finish of the bottom plate of the electric iron, and contribute to the ironing of high-grade cloth.

Description

Technical field [0001] The invention relates to a new ceramic material. In particular, it relates to ceramic materials with a low coefficient of thermal expansion for soleplates of electric irons. Background technique [0002] It is known that the main crystal phase of cordierite porcelain is 2MgO·2Al 2 o 3 ·5SiO2 2 , its ions are not tightly arranged, and there are huge cavities in the crystal lattice, but because of its loose structure and very small thermal expansion coefficient, it has good thermal stability. At present, the soleplates of electric irons used by people are generally made of metal materials, but general metal materials have an insurmountable shortcoming compared with ceramic materials: the hardness of the material is low, and once there is a slight collision or scratches, it will be damaged. It will affect the use of the iron and cause damage to the fabric, especially for high-grade fabrics. The soleplate of the electric iron is made of general structu...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of poor thermal shock resistance and low hardness of metal materials in general ceramic materials, the present invention provides a cordierite porcelain material with a low thermal expansion coefficient. The ceramic material has good thermal shock resistance and high hardness as the soleplate of an electric iron , after grinding and polishing, the surface finish is high, which is more conducive to ironing high-grade clothing materials