Ceramic heating tube and manufacturing process thereof

Abstract

The invention relates to a ceramic heating tube and a manufacturing process thereof. The ceramic heating tube is mainly composed of ceramic, a guide rod and a heating element. The manufacturing process of the ceramic heating tube mainly comprises the processing steps of selecting a heating element according to design requirements, processing the heating element into a required shape, and welding a guide rod; selecting a corresponding mold according to a powder molding method, the designed shape and technical parameters of ceramic; assembling the heating element and the mold, coating the heating element with powder of the ceramic and molding, adding 15%-28% of a mixture of water, a binder and a dispergator in the slip casting process. Other components are assembled according to the design requirements. The ceramic heating tube provided by the invention is simple in manufacturing process and suitable for automatic production, does not need a sealing material, and can greatly reduce the cost. In addition, the ceramic is good in high temperature oxidation resistance and corrosion resistance, so that the ceramic heating tube is more excellent in performance than a traditional heating tube. The ceramic is also good in stability and poisonless and harmless, so that the ceramic heating tube can be widely applied to various heating occasions.

Description

technical field [0001] The invention relates to a structure and a manufacturing process of a heating tube, in particular to a ceramic heating tube and a manufacturing process thereof. Background technique [0002] Currently common sheathed tubular heating elements are generally composed of heating elements, lead rods, filling materials, and metal sheaths. The whole process starts from wire winding, and goes through more than a dozen processes such as powder filling, tube shrinking, molding, annealing, etc., to form a finished product. Among them, the process of the tube body itself is due to the limitation of the selected filling material and the characteristics of the metal tube body material itself, which accounts for the vast majority of the entire heating tube manufacturing process. There are many processes and are very complicated, which is not conducive to automated production. Contents of the invention [0003] In order to simplify the structure and manufacturing p...

AI Technical Summary

Problems solved by technology

Among them, the process of the tube body itself is due to the limitation of the selected filling material and the characteristics of the metal tube body material itself, which accounts for the vast majority of the entire heating tube manufacturing process. There are many processes and are very complicated, which is not conducive to automated production.

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