News

Home > News > Content

Structural Ceramics Mechanical Behavior

Hangzhou JWG Technology Co.Ltd | Updated: Sep 29, 2017

Compared with the metal material, Structural Ceramics the biggest advantage of ceramics is excellent high temperature mechanical properties, chemical resistance, high temperature oxidation, high strength wear resistance erosion, the proportion of small (about metal 1/3 ~ 2/3), thus In many occasions gradually replace the expensive ultra-high alloy steel or applied to the metal material simply can not do the occasion, such as in the raw materials industry, mining, metallurgy, chemical, nonferrous metals, petroleum, construction, building materials, Structural Ceramics cement and other industrial production process can not Or lack of equipment parts Protective materials and tools and media for making products. However, it should be noted that the biggest drawback of ceramic materials is brittleness, which has become a fatal weakness in the application of traditional ceramics. Structural Ceramics Even if the brittleness of the current engineering ceramics is greatly improved, its brittleness is still its work in high stress abrasive wear The environment is an unavoidable weakness.

As we all know, most ceramic materials and metal materials, compared to its poor plastic deformation, stress concentration and crack sensitive. Obviously, the use of ceramic as grinding cement grinding body, its reliability is worse than the metal material, even if the texture is more excellent structural ceramics, Structural Ceramics in use there will be abnormal circumstances, such as grinding body fragmentation, the greater impact on the work The environment does not meet and so on. So the ceramic ball is not suitable for relying on the impact force to do the work of crushing the cement mill mill positions, even in the two positions (for three warehouse grinding) or tail positions (for double-warehouse grinding), ceramic ball ball phenomenon also appears The record. Grinding cement appeared in the phenomenon of broken ball, reflecting two aspects: First, Structural Ceramics the quality of ceramic balls, the second is the grinding process and operation. Ceramic ball quality by its technical performance that is mechanical properties and physical and chemical properties to reflect. The technical performance of the ceramic abrasive body (ball) used for grinding cement is the following: the density, hardness, compressive strength, stiffness and fracture toughness are significant. Structural Ceramics We know that the hardness of structural ceramics, Structural Ceramics pressure strength than the wear-resistant metal is much higher, and the density, stiffness (elastic modulus), improve the fracture toughness is perfect, is to improve the quality of structural ceramics products and the use of the key。


Hangzhou JWG Technology Co.Ltd