A device for quickly assisting metallographic circumferential decarburized layer depth

Abstract

A kind of device for quickly assisting metallographic circumferential decarburization layer depth belongs to circumferential decarburization inspection technical field.The angle distance problem of the existing technology cannot be continuously measured and cannot be accurately measured decarburization layer depth is solved.Technical points: bearing is installed in base, and object carrying platform is installed on base;Stepwise sinking and diameter gradually reducing circular grooves are arranged on object carrying platform, and angle scale is engraved on the upper surface of object carrying platform;Base and object carrying platform have same diameter;The recess that traverses object carrying platform is formed in 14mm of the top surface of object carrying platform, and the width of recess is 10mm.The utility model can improve inspection efficiency and shorten cycle;It is simple to operate, solves the problem of inaccurate data caused by manual rotation of sample operation, and improves inspection speed and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of circumferential decarburization inspection technology, specifically a device for rapidly assisting in the depth of metallographic circumferential decarburization layer. Background Technology

[0002] During the heating and holding process, steel is affected by the surrounding atmosphere, causing all or part of the carbon content in its surface layer to be lost, resulting in a decrease in the carbon content of the steel surface. This phenomenon is called decarburization, and it is a surface defect of steel. The study of the distribution of decarburization on round steel bars is particularly important for new product development and yield. However, using national standard sample preparation and testing methods is inefficient for inspecting circumferential decarburization.

[0003] The decarburization layer depth test is a common test item in metallographic examination. It is usually carried out in accordance with GB / T224-2019. The method for testing the decarburization layer depth has determined the corresponding preparation method according to different specifications of the test specimens. It is necessary to perform a 360° inspection of the entire circumference of the round steel cross section. The conventional method of manually rotating the specimen for positioning is prone to missing local areas. After each measurement, the specimen needs to be repositioned to find the next measurement point, which cannot achieve continuous and smooth measurement. In addition, the maximum grinding size of the specimen is 25mm. Specimens larger than this size need to be cut and spliced ​​before being inspected separately with a microscope. It is not possible to accurately measure the angle and distance of the decarburization layer depth.

[0004] Therefore, there is an urgent need to propose a device for rapidly assisting in measuring the depth of the decarburized layer on the metallographic circumference, in order to solve the problem that the existing technology cannot continuously measure or accurately measure the angular distance of the decarburized layer depth. Utility Model Content

[0005] In view of the above facts, in order to solve the problem that the angle distance of the decarburized layer depth cannot be continuously measured or accurately measured in the prior art, this utility model designs a device for rapidly assisting in measuring the depth of the metallographic circumferential decarburized layer.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A device for rapidly assisting in the depth of metallographic circumferential decarburization layer, comprising a base and a loading platform;

[0008] The base is equipped with bearings, and the loading platform is mounted on the base.

[0009] The loading platform is provided with stepped, recessed circular grooves with progressively decreasing diameters, and the upper surface of the loading platform is engraved with angle markings.

[0010] Furthermore, the bearing is a tapered roller bearing.

[0011] Furthermore, the base has the same diameter as the loading platform.

[0012] Furthermore, the loading platform is a cylindrical metal platform made of 45 steel.

[0013] Furthermore, the cargo platform has a diameter of 60mm and a height of 30mm.

[0014] Furthermore: within the range of 10-20mm in diameter of the loading platform, a groove is provided every 2mm; within the range of 20-60mm in diameter of the loading platform, a groove is provided every 5mm; and the height of each groove is 2mm.

[0015] Furthermore, a groove is provided 14mm from the top surface of the loading platform, and the groove is 10mm wide.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model can improve inspection efficiency and shorten the cycle.

[0018] 2. This utility model is simple to operate, solves the problem of inaccurate data caused by the inconvenience of manual sample rotation, and improves the speed and accuracy of testing. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the present invention;

[0020] Figure 2 for Figure 1 Top view.

[0021] In the diagram: 1-base, 2-carrying platform. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] The terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0026] Example: A device for rapidly increasing the depth of the metallographic circumferential decarburization layer according to this example includes a base 1 and a loading platform 2;

[0027] The base 1 is equipped with a bearing, and the loading platform 2 is mounted on the base 1 to transmit rotational force.

[0028] The platform 2 is provided with stepped recessed circular grooves with progressively smaller diameters, which allows for precise concentric positioning of samples of different sizes. The upper surface of the platform 2 is engraved with angle scales, which facilitates the measurement and recording of the corresponding positions of the decarburized layer depth.

[0029] More specifically: the bearing is a tapered roller bearing, which enables the sample to rotate concentrically and precisely at a certain angle; the bearing model is 32308.

[0030] More specifically: the base 1 has the same diameter as the loading platform 2.

[0031] More specifically: the loading platform 2 is a cylindrical metal platform made of 45 steel.

[0032] More specifically: the cargo platform 2 has a diameter of 60mm and a height of 30mm.

[0033] More specifically: within the 10-20mm diameter range of the loading platform 2, a groove is provided every 2mm; within the 20-60mm diameter range of the loading platform 2, a groove is provided every 5mm; and the height of each groove is 2mm.

[0034] More specifically: a groove is provided 14mm from the top surface of the loading platform 2, which runs through the loading platform 2. The groove is 10mm wide and is used for quick loading and unloading of samples. Small-diameter samples are generally thicker and can be taken out directly without going through the groove.

[0035] More specifically: After placing the circumferential decarburization test sample into the groove inside the device according to its size, place it under a microscope, use 100X magnification to align with the edge of the sample, adjust the focus until the image is clear, slowly rotate the base 1 to drive the platform 2 to rotate, and observe the decarburization layer depth at different positions on the circumference in real time through the microscope during the rotation. Combined with the scale of the platform 2, accurately record the circumferential angle position corresponding to the decarburization layer depth, or directly mark the points on the scale.

[0036] More specifically: This device is suitable for the universal materials microscope (Axio Imager A2m).

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; as long as there is no structural conflict, the features in the specific embodiments disclosed in this application can be combined with each other in any way, and will not cause the substance of the corresponding technical solutions to deviate from the scope of the technical solutions of this utility model.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for rapidly assisting in deepening the metallographic circumferential decarburization layer, characterized in that, Includes a base (1) and a cargo platform (2); The base (1) is equipped with bearings, and the loading platform (2) is mounted on the base (1); The loading platform (2) is provided with a stepped, sinking circular groove with a decreasing diameter, and the upper surface of the loading platform (2) is engraved with angle scale.

2. The device for rapidly assisting in deepening the metallographic circumferential decarburization layer according to claim 1, characterized in that, The bearing is a tapered roller bearing.

3. The device for rapidly assisting in deepening the metallographic circumferential decarburization layer according to claim 1, characterized in that, The base (1) has the same diameter as the cargo platform (2).

4. The device for rapidly assisting in deepening the metallographic circumferential decarburization layer according to claim 1, characterized in that, The loading platform (2) is a cylindrical metal platform made of 45 steel.

5. The device for rapidly assisting in deepening the metallographic circumferential decarburization layer according to claim 1, characterized in that, The cargo platform (2) has a diameter of 60 mm and a height of 30 mm.

6. The device for rapidly assisting in deepening the metallographic circumferential decarburization layer according to claim 1, characterized in that, Within the 10-20mm diameter range of the loading platform (2), a groove is set every 2mm, and within the 20-60mm diameter range of the loading platform (2), a groove is set every 5mm, and the height of each groove is 2mm.

7. The device for rapidly assisting in deepening the metallographic circumferential decarburization layer according to claim 1, characterized in that, A groove is provided 14mm away from the top surface of the loading platform (2), and the groove is 10mm wide.

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