Internal-pressure-resistant detection method for ceramic tube
A detection method, a technology of withstand voltage detection, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve problems such as difficult detection, high environmental requirements, and complicated preparation processes, so as to ensure mechanical properties and be suitable for large-scale production Applied effect
Inactive Publication Date: 2013-05-22
SHANGHAI ELECTRIC SODIUM SULFUR ENERGY STORAGE TECH
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Problems solved by technology
The general characteristics of these special ceramic tubes: First, the required products are thin-walled, one end is closed and the other end is open, and the length-to-diameter ratio is greater than 5; second, the environmental requirements for ceramic tube applications are high, and generally work at medium and high temperatures and need to be repeated. The temperature rises and falls, and is affected by mechanical stress; the third is that the inside and outside of the ceramic tube are highly active substances, and once the ceramic tube breaks, it is easy to cause disastrous consequences; the fourth is that the preparation process of these special ceramic tubes is complicated and cannot be prepared. Avoids various defects that are currently also difficult to detect
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[0020] In order to better understand the technical solution of the present invention, the following will be described in detail through specific embodiments in conjunction with the accompanying drawings:
[0021] see figure 1 , a method for detecting internal pressure resistance of ceramic tubes of the present invention is based on a booster system, which includes a liquid storage tank 1, a low-pressure liquid-displacement pump 2, a high-pressure liquid-displacement pump 3, a pressure sensor 4 and injection Liquid port 5.
[0022] The internal pressure resistance test method includes a static pressure resistance test method and a burst test method. in,
[0023] The static compressive strength test method includes the following steps:
[0024] Step 1, the ceramic tube to be tested is sheathed outside a flexible test tube 6 and placed in a rigid sheath 7;
[0025] Step 2, connecting the liquid injection port 5 of the booster system with the flexible test tube 6;
[0026] St...
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The invention discloses an internal-pressure-resistant detection method for a ceramic tube. The internal-pressure-resistant detection method comprises the following steps of: sheathing the tested ceramic tube outside a flexible test tube and arranging the ceramic tube in a rigid sheath; communicating a liquid injection port of a pressurization system with the flexible test tube; starting a low-pressure liquid injection pump of the pressurization system to draw out test liquid and injecting the test liquid into the flexible test tube through the liquid injection port till the flexible test tube is full; closing the low-pressure liquid injection pump, starting a high-pressure liquid injection pump of the pressurization system, continuing to injecting the test liquid into the flexible test tube through the liquid injecting port to expand the flexible test tube, then transferring pressure to the tested ceramic tube and detecting the output pressure through a pressure sensor arranged on the liquid injection port till the pressure of the test liquid in the flexible test tube achieves a set pressure; and keeping the pressure for 10s and finishing the test. According to the internal-pressure-resistant detection method for the ceramic tube, disclosed by the invention, the influence on the strength of the ceramic tube can be avoided.
Description
technical field [0001] The invention relates to a detection method for internal pressure resistance of a ceramic tube. Background technique [0002] With the rapid development of technology and economy, ceramic tube products for certain special functional applications, such as β-alumina electrolyte ceramic tubes for sodium-sulfur batteries, zirconia ceramic tubes for fuel cells, coke oven gas by-product oxidation reforming hydrogen production equipment The market demand for BCFN (a synthetic special polycrystalline compound) oxygen-permeable membrane composite dielectric ceramic tube and so on is increasing. The general characteristics of these special ceramic tubes: First, the required products are thin-walled, one end is closed and the other end is open, and the length-to-diameter ratio is greater than 5; second, the environmental requirements for ceramic tube applications are high, and generally work at medium and high temperatures and need to be repeated. The temperatur...
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IPC IPC(8): G01N3/12
Inventor 朱翔宇邹晓易顾中华刘宇祝铭茅雁
Owner SHANGHAI ELECTRIC SODIUM SULFUR ENERGY STORAGE TECH