Full fiber ceramic body glue discharging method and kiln

Abstract

The invention discloses a full fiber ceramic body glue discharging method. A ceramic biscuit containing organic matters is subject to heating up, glue discharging under heat reservation and reheating in a full fiber ceramic body glue discharging kiln to convert organic matters in the biscuit into gas to be discharged; the biscuit forms a porous body with certain strength and compact structure; meanwhile, the body is not obviously bent and deformed, thus being convenient for the body to form a dense body with intact shape in the sintering process and improves product yield. Glue discharging heat reservation temperature can be 600-1000 DEG C. The kiln has simple structure and convenient operation and maintenance; the utilization ratio of the kiln is low and is only 60-70% of similar products abroad; compared with the glue discharging kiln with other structures, the kiln of the invention has low cost; thus, the kiln can be widely applied to the glue discharging process of the ceramic biscuit and can be used for the sintering production of low-temperature ceramics.

Description

Technical field: [0001] The invention relates to the field of inorganic non-metallic materials, and is especially suitable for removing the organic precursors used in the molding of ceramic bodies and other low-melting and boiling-point compounds. A full-fiber ceramic body debinding method and kiln for industrial and laboratory use furnace. Background technique: [0002] At present, with the development of new material technology, higher requirements are put forward for the production and performance of ceramics. Due to the ubiquitous characteristics of high hardness and brittleness of ceramic materials, the processing of ceramic materials is relatively difficult. However, molding methods such as tape casting, organic precursor method, and gel injection can change the defects of ceramic materials that are difficult to process, so that ceramic materials can also be processed. It is easy to be processed into various shapes. In these molding methods, organic solvents or aqueo...

AI Technical Summary

Problems solved by technology

Due to the ubiquitous characteristics of high hardness and brittleness of ceramic materials, the processing of ceramic materials is relatively difficult. However, molding methods such as tape casting, organic precursor method, and gel injection can change the defects of ceramic materials that are difficult to process, so that ceramic materials can also be processed. It is easy to be processed into various shapes

In these molding methods, organic solvents or aqueous solutions are often used. These solvents can change the plasticity of ceramics. However, during the firing process of ceramic materials, these compounds with low melting and boiling points will evaporate, oxidize, and burn into gases to be discharged. Therefore, the debinding process will have an impact on the performance of the material

The existing debinding kiln systems use ordinary kilns to install exhaust devices for the debinding process, or use foreign debinding equipment, but these methods have high costs, difficult temperature control, and slow debinding speed. Unstable green body performance and other shortcomings

Images