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Carbon-ceramic heating tube and processing method

A carbon ceramic heating tube, heating tube technology, applied in the direction of heating element material, heating element shape, etc., can solve the problems of low electric-thermal conversion efficiency, short life, difficult to guarantee input power, etc., to reduce hygroscopicity and conversion efficiency. High, low thermal inertia

Inactive Publication Date: 2008-05-07
马放
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to solve the technical problems existing in the prior art, such as low electro-thermal conversion efficiency, short service life, difficulty in guaranteeing input power, etc., and provide a long service life, good insulation, oxidation resistance, shock and vibration resistance, electric - Carbon ceramic heating tube with high heat conversion efficiency

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  • Carbon-ceramic heating tube and processing method

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Embodiment Construction

[0027] The specific embodiments of the present invention will be described below in conjunction with the drawings. As shown in Figure 1: There is a carbon-ceramic heating substrate 1, and electrode lead rods 2 are connected to both ends of the carbon-ceramic heating substrate 1. The carbon-ceramic heating substrate 1 is covered with a protective tube 3, and the carbon-ceramic heating substrate 1 and the protective tube 3 Insulating thermal powder 4 is filled between.

[0028] The specific processing method is:

[0029] a. Mix carbon powder, non-oxide ceramic powder, alloy oxide, and infrared radiation powder in a volume ratio of 5-8:0.5-1.5:0.5-1.5:0.5-1.5, stir evenly, and process them into carbon ceramics by chemical curing The two ends of the heating substrate 1 should be fixed with the electrode lead rod 2. The particle size of carbon powder, non-oxide ceramic powder, alloy oxide, and infrared radiation powder should be less than 0.01mm. The alloy oxide in the mixture can be t...

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Abstract

This invention discloses a ceramic-carbon heating pipe having a heating matrix, an electrode lead-out rod is connected with both ends of matrix sleeved with a protection pipe, insulation and heat conduction powder is filled between matrix and protection pipe. Its electric-heat transformation rate reaches as high as 99.6% and is oxidation resistant, not easy to be broken with a long work life to 50000 hours, 1.5 times higher than that of the national standard.

Description

Technical field: [0001] The invention relates to an infrared electric heating element, in particular to a carbon-ceramic heating tube. Background technique: [0002] At present, there are many types of electric heating elements for electric heating equipment on the market, but they can be roughly divided into three categories, which are introduced as follows: [0003] 1. Alloy heating element [0004] Alloy heating wire is made of high-resistance alloy material. Generally, iron-chromium-aluminum or nickel-chromium alloy is used to make resistance wire. On this basis, various electric heating elements are made by secondary processing. This kind of alloy resistance wire is easy to become brittle after being used and cooled at high temperature, the longer the use time, the more serious the brittleness after cooling, the poor shock resistance, the short service life, and the low efficiency of electric-heat conversion. In addition, the insulating filling material between the metal tub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/48H05B3/12
Inventor 马放
Owner 马放
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