Device for detecting high temperature oxidation resistance of graphite roller sleeve in different atmospheres
A technology of high temperature oxidation resistance and roller sleeves, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as unsuitable graphite roller sleeves for high temperature oxidation resistance
Inactive Publication Date: 2014-12-03
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology
[0007] For graphite electrodes in my country, there is a standard for the oxidation determination method (graphite electrode oxidation determination method GB3074.3-82), but this measurement method can only measure the oxidation result of air as the oxidation medium, and the temperature is relatively low, at 650 ° C, It is not suitable for testing the high temperature oxidation resistance of the graphite roller sleeve in the present invention
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[0038] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings of the embodiments.
[0039] see figure 1 ,
[0040] The device for detecting the high temperature oxidation resistance of the graphite roller sleeve in different atmospheres of the present invention is as follows: figure 1 shown, it contains four devices:
[0041] 1. Oxidizing medium supply device
[0042] This is a device for providing an adjustable oxidizing medium, which serves as an oxidizing environment during detection. The oxidizing medium providing device mainly includes:
[0043] The nitrogen cylinder 11 is filled with nitrogen, and its outlet is provided with a nitrogen delivery pipe 111;
[0044] The oxygen-containing device 12 is a device for providing an oxygen-containing medium, and its input port is communicated with the nitrogen delivery pipe 111 of the nitrogen cylinder 11, and nitrogen is input. Oxidizing medium.
[004...
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The invention relates to a device for detecting high temperature oxidation resistance of a graphite roller sleeve in different atmospheres, relates to an experimental device for detecting the high temperature oxidation resistance of the graphite roller sleeve, and solves the problem that the oxidation resistance of the graphite roller sleeve can not be evaluated quantitatively. The device comprises an oxidation medium providing apparatus, a heating furnace apparatus, a gas pipeline and metering apparatus, and a weighing apparatus, wherein the oxidation medium providing apparatus provides an oxidation environment during detection, is composed of a nitrogen cylinder and an oxygen container, and outputs the oxidation medium generated after synthesis of nitrogen and an oxygen-containing medium; the heating furnace apparatus is used for heating a graphite roller sleeve sample in different oxidation atmospheres; the gas pipeline and metering apparatus is used for conveying the oxidation medium into the heating furnace and is composed of a first gas pipeline and a second gas pipeline; and the weighing apparatus is used for metering the mass before and after oxidation of the graphite roller sleeve sample. The device realizes the objects of quantitatively evaluating the oxidation resistant capacity of the graphite roller sleeve in environments at a certain temperature, different oxidation media and concentrations.
Description
technical field [0001] The invention relates to an experimental device for detecting the high temperature oxidation resistance of a graphite roller sleeve, in particular to a device for detecting the high temperature oxidation resistance of a graphite roller sleeve in different atmospheres. Background technique [0002] The graphite roller sleeve is a special accessory used in the heating furnace (annealing) for silicon steel production. It is the sleeve of the rotating roller in the heating furnace. It is connected with the rotating roller and is installed in the heating furnace. Driving together to rotate is an indispensable special accessory for silicon steel production. [0003] With the continuous expansion of the production scale of silicon steel, the consumption of graphite roller sleeves has increased year-on-year. However, at present, there are no product technical standards for graphite roller sleeves, and there are no matching testing standards and devices, espec...
Claims
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IPC IPC(8): G01N5/00
Inventor 姜华刘永丰王峰
Owner BAOSHAN IRON & STEEL CO LTD