A device and method for rapidly evaluating the heat resistance of heating elements
A heating element and heat-resistant technology, applied in the investigation stage/state change, etc., can solve problems such as blindness, lack of science, inconsistent evaluation methods, etc., and achieve the effect of convenient operation and accurate and reliable results
Inactive Publication Date: 2015-12-23
SHANGHAI JIAOTONG UNIV
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Problems solved by technology
At present, relevant domestic companies claim to be able to produce heating elements with a heat-resistant temperature of 1800°C or higher. However, due to inconsistent or unscientific evaluation methods adopted by each, the heat-resistant performance of heating elements in actual use is quite different. Similarly, the user has no relevant and reliable basis when choosing a heating element, and the blindness is relatively large, which will inevitably affect the stability of the follow-up production of the heating element user enterprise and the reliability of the product
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[0026] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0027] Such as figure 1 As shown, this embodiment provides a device for quickly evaluating the heat resistance of the heating element 40, including a current control device 10, a holding furnace 20, and a thermometer 30, wherein: the thermometer 30 and the heating element 40 connected to monitor the temperature of the heating element 40; the heating element 40 is placed in the holding furnace 20 for heat preservation; the current control device 10 is provided with wires connected to the heating el...
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Abstract
The invention provides a device and a method for rapidly evaluating heat resistance of a heating body element. The device comprises a current control device, a heat insulation furnace and a temperature measuring meter, wherein the temperature measurement meter is connected with the heating body element; the heat insulation furnace is internally provided with the heating body element; and the current control device is connected with the heating body element. The method comprises the following steps of: electrifying and heating the heating body element until air bubbles are generated on the surface of the heating body element, recording current parameters, and calculating the heat resistance type of the heating body element according to the load calculating formula of the heating body element. The invention provides the device and method which can evaluate the heat resistance of a heating body rapidly and scientifically, are not affected by other external factors of furnace lining materials, heating body specifications and the like, can understand and master the heat resistance of the heating body accurately, are convenient to operate, and are accurate and reliable in result.
Description
technical field [0001] The present invention relates to the evaluation of the heat resistance of heating elements, in particular to a device and method for rapidly evaluating the heat resistance of heating elements. Background technique [0002] With the development of science and technology and society, as well as the conservation of natural resources, for MoSi 2 For heating elements such as SiC and SiC, high temperature resistance and long life have always been the development and research trends of the two. During normal use, the service life of the high temperature resistant heating element is longer, and vice versa. [0003] At present, the method of evaluating the heat resistance of the heating element is generally based on experience, that is, the heat resistance temperature of the heating element = the temperature in the furnace when the heating element is foaming + 100 ~ 150 ° C. The disadvantage of this method is that the heating element must be heated at the same...
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IPC IPC(8): G01N25/12
Inventor 何树先王俊
Owner SHANGHAI JIAOTONG UNIV