Ceramic heating tube and manufacturing process thereof

A ceramic heating tube and manufacturing process technology, applied in the direction of the shape of the heating element, can solve the problems of many processes, unfavorable automatic production, complexity, etc., and achieve the effects of simplifying the processing process, good high temperature oxidation resistance, and simple manufacturing process

Inactive Publication Date: 2017-01-11
安徽苏立科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 a

Method used

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  • Ceramic heating tube and manufacturing process thereof

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Effect test

Example Embodiment

[0026] Example one:

[0027] The main components of the powder of ceramic 2 may be: 2% calcium oxide, 0.5% silicon oxide, and 97.5% alumina powder.

Example Embodiment

[0028] Embodiment two:

[0029] The main components of the powder of the ceramic 2 may be: calcium oxide 4%, silicon oxide 1.5%, and alumina powder 94.5%.

Example Embodiment

[0030] Embodiment three:

[0031] The main components of the powder of the ceramic 2 can be 3% calcium oxide, 1% silicon oxide, and 96% alumina powder.

[0032] A manufacturing process of a ceramic heating tube includes the following process steps:

[0033] S1: Select the heating element 3 according to the design requirements, process it into the required shape, and weld the lead rod 1;

[0034] S2: Choose the corresponding mold according to the powder molding method, design shape and technical parameters of ceramic 2;

[0035] S3: Assemble the heating element 3 and the mold, cover the heating element with the powder of ceramic 2 and shape it, and add 15%-28% of the powder mass composition of the ceramic 2 with water, binder, and solution during the grouting process. The mass ratio of the glue mixture, water, binder, and glue release agent is 8:1:1.

[0036] S4: Assemble other components according to design needs.

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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...

Claims

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Application Information

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IPC IPC(8): H05B3/48C04B35/10
CPCH05B3/48C04B35/10C04B2235/3208C04B2235/3418
Inventor 付真荣郎开华潘伟骆亚运魏平
Owner 安徽苏立科技股份有限公司
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