Heating treatment device used for Austenitic grain size carburization test and using method thereof

A technology of austenite grains and heat treatment equipment, which is applied in the preparation of test samples, coating, metal material coating technology, etc., can solve the problems of uneven carburizing and expensive operation, and achieve uniform carburizing layer , Improve the test efficiency, and the effect of carburizing heat treatment with good quality

Inactive Publication Date: 2017-07-21
SHANGHAI ELECTRIC NUCLEAR POWER EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, during the inspection process, since the laboratory is generally not equipped with professional carburizing furnace type heat treatment equipment, only ordinary box-type heat treatment resistance furnaces are available, and the operation price of this method is also very expensive
In addition, if the solid carburizing method is used, it will easily cause uneven carburization, making the sample partially carbon-free or carbon-poor, or even decarburized

Method used

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  • Heating treatment device used for Austenitic grain size carburization test and using method thereof
  • Heating treatment device used for Austenitic grain size carburization test and using method thereof

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Embodiment Construction

[0022] Combine the following Figure 1 ~ Figure 2 , a preferred embodiment of the present invention is described in detail.

[0023] like figure 1 As shown, the heat treatment device for the austenite grain size carburizing test provided by the present invention can form a carburized layer on the surface of the sample sample 5, including: a tank body 1; a solid carburizing agent, which is arranged on The inside of the tank body 1; the air-permeable partition 4 is fixedly arranged on the inner side wall of the tank body 1, and is located above the solid carburizing agent, and is used to place a plurality of sample samples 5; the sealing cover 6 is arranged on the tank body The top of the body 1 seals the tank body 1; wherein, the solid carburizing agent includes: a carburizing catalyst 2, laid on the bottom of the tank body 1; activated carbon 3, laid on the top of the carburizing catalyst 2, and located Below the air-permeable partition 4.

[0024] like figure 2 As shown,...

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Abstract

The invention relates to a heat treatment device for austenite grain size carburizing test, and a method for using the same, comprising: S1, laying a carburizing catalyst on the bottom of a tank; laying activated carbon above the carburizing catalyst, located Under the air-permeable partition; place multiple samples on the air-permeable partition without contact; cover the sealing cover on the top of the tank for sealing; S2. Put the heat treatment device into the box-type resistance furnace; , the CO decomposed by the carburizing catalyst 2 React with activated carbon to synthesize CO and form a stable carbon potential atmosphere around the sample through the gas-permeable partition, simulating the way of carburizing the atmosphere to form a carburized layer, and complete the carburization of the austenite grain size on the sample method test. The invention can realize the test of the austenite grain size carburizing method in the conventional box-type resistance furnace, which can reduce the test cost and improve the test efficiency; and the carburizing heat treatment quality is good, the carburizing layer is uniform, and meets the requirements of the carburizing method Inspection requirements for austenite grain size.

Description

technical field [0001] The invention relates to a heat treatment device and a use method thereof, in particular to a heat treatment device for austenite grain size carburization test and a use method thereof, and belongs to the technical field of heat treatment equipment for physical tests. Background technique [0002] Grain size is a measure of the size of metal grains. The grain size of metal materials has an impact on its processing performance, mechanical properties, physical properties, heat resistance and corrosion resistance. Therefore, in the analysis of metal properties, the estimation of grain size (that is, grain size) is very important. Among them, the detection of austenite grain size refers to the grain size measured after the steel material is kept at the austenitizing temperature for a period of time, which characterizes the grain growth trend of a certain steel, and the grain growth tendency It is very important to formulate heat treatment process. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C8/66G01N1/28
CPCC23C8/66G01N1/28
Inventor 顾佳磊华建国陆连萍纵海蒲洲
Owner SHANGHAI ELECTRIC NUCLEAR POWER EQUIP CO LTD
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