Charpy impact sample size inspection plate
By designing a Charpy impact specimen size inspection plate and setting inspection points on the substrate using engraving and cutting methods, the problems of low efficiency and misjudgment in Charpy impact specimen size inspection were solved, and rapid and accurate size inspection was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA FIRST MASCH GRP CORP CO LTD
- Filing Date
- 2025-02-19
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing technology, the dimensional inspection of Charpy impact specimens is inefficient and prone to misjudgment, mainly due to the low measurement accuracy caused by factors such as measuring tools and personnel.
设计一种夏比冲击试样尺寸检查板，采用有机玻璃或不锈钢钢片材质的基体，通过刻画和切口设置检测项点，利用贴靠和目测方式检查夏比冲击试样的尺寸是否符合GB/T229-2020标准。
It enables rapid, convenient, and accurate dimensional inspection of Charpy impact specimens, improving measurement accuracy and reducing the possibility of misjudgment.
Smart Images
Figure CN224230885U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of metrology and testing tooling technology, and relates to a Charpy impact specimen size inspection plate. Background Technology
[0002] The dimensions of Charpy impact test specimens are strictly specified in GB / T229-2020, and whether the dimensions are out of tolerance has a direct impact on the measurement results.
[0003] Currently, the inspection of Charpy impact test specimen dimensions (test specimen length, test specimen width, ligament width, notch symmetry plane-end distance, notch symmetry plane-test specimen longitudinal axis angle, and angle between adjacent longitudinal planes of the test specimen) mainly uses measuring tools such as calipers. There are many inspection items and high measurement accuracy requirements, resulting in low efficiency in the inspection process. Furthermore, since the measurement accuracy is directly related to the personnel and the tools used, it is easy to make misjudgments in the dimension inspection. Utility Model Content
[0004] (I) Purpose of the utility model
[0005] The purpose of this invention is to provide a Charpy impact specimen size inspection plate to quickly identify whether the processing dimensions of the Charpy impact specimen meet the requirements of GB / T229-2020 standard.
[0006] (II) Technical Solution
[0007] To address the aforementioned technical problems, this utility model provides a Charpy impact test specimen size inspection plate, comprising: a substrate made of plexiglass or stainless steel sheet, on which impact test specimen size inspection points are set by means of dimensional markings and cuts, to identify whether the size of the Charpy impact test specimen meets the requirements of GB / T229-2020 standard by means of contact and visual inspection; the impact test specimen size includes: specimen length, specimen width, specimen height, ligament width, notch symmetry plane-end distance, notch symmetry plane-test specimen longitudinal axis angle, and included angle between adjacent longitudinal planes of the specimen.
[0008] The length and width testing items include multiple sets of rectangular holes, each set having two rectangular holes with different lengths and widths. In each set of rectangular holes, the two lengths correspond to the upper limit and lower limit of the length dimension of the impact specimen to be tested, respectively. The width of the hole with the upper limit of the length dimension corresponds to the upper limit of the width dimension of the impact specimen to be tested, and the width of the hole with the lower limit of the length dimension corresponds to the lower limit of the width dimension of the impact specimen to be tested.
[0009] Among the multiple sets of rectangular holes for length and width detection items, there is a set of rectangular holes for detecting the length and width of U-shaped notch samples and a set of rectangular holes for detecting the length and width of V-shaped notch samples.
[0010] The height detection item includes multiple sets of rectangular holes, each set including two rectangular holes with different heights and widths; in each set of rectangular holes, the length and width of one hole correspond to the upper limit of the height dimension and the upper limit of the width dimension of the impact sample to be tested, respectively, and the length and width of the other hole correspond to the lower limit of the height dimension and the lower limit of the width dimension of the impact sample to be tested, respectively.
[0011] The ligament width testing items include multiple rectangular holes with one side opening at the edge of the matrix. The upper limit of the opening width is the upper limit of the ligament width dimension, and the lower limit of the opening width is the lower limit of the ligament width dimension.
[0012] Among them, the notch symmetry plane-end distance detection point includes multiple rectangular holes with one side opening at the edge of the substrate. The upper limit of the opening length is the upper limit of the notch symmetry plane-end distance dimension, and the lower limit of the opening length is the lower limit of the notch symmetry plane-end distance dimension.
[0013] Among them, the test item for the included angle between adjacent longitudinal planes of the sample includes making two holes at the corner of the substrate to create a comparison angle. One angle is used as the upper limit of the comparison angle, and the other angle is used as the lower limit of the comparison angle. During the inspection, the two angles are compared separately. The vertex of the sample after being placed against the upper limit angle should not be transparent, while the vertex of the sample after being placed against the lower limit angle must be transparent. When both conditions are met, the tested sample meets the requirements.
[0014] Among them, the test items for the included angle between adjacent longitudinal planes of the sample include: opening a hole at the upper left corner of the substrate, making a 91° angle and marking it; opening a hole at the upper right corner of the substrate, making an 89° angle and marking it; the vertex of the sample should not be transparent after being attached to the 91° angle; the vertex of the sample should be transparent after being attached to the 89° angle. When both conditions are met, the tested sample meets the requirements.
[0015] Among them, the notch symmetry plane-sample longitudinal axis angle detection item includes making two holes at the corner of the substrate to create a comparison angle. One angle is used as the upper limit of the comparison angle, and the other angle is used as the lower limit of the comparison angle. During the inspection, the two angles are compared separately. The vertex of the sample after being placed against the upper limit angle should not be transparent, while the vertex of the sample after being placed against the lower limit angle must be transparent. When both conditions are met, the tested sample meets the requirements.
[0016] Among them, the test items for the notch symmetry plane-sample longitudinal axis angle include making a hole in the lower left corner of the substrate, creating a 92° angle and marking it, making a hole in the upper right corner of the substrate, creating an 88° angle and marking it, ensuring that the vertex of the sample is not transparent after being attached to the 92° angle, and that the vertex of the sample is transparent after being attached to the 88° angle. When both conditions are met, the tested sample meets the requirements.
[0017] (III) Beneficial Effects
[0018] The Charpy impact specimen size inspection plate provided by the above technical solution, by engraving or carving the dimensions to be inspected of the Charpy impact specimen on the substrate, enables the inspection plate of this utility model to reasonably observe and measure the specimen length, specimen width, specimen height, ligament width, notch symmetry plane-end distance, notch symmetry plane-specimen longitudinal axis angle, and the included angle between adjacent longitudinal planes of the specimen, etc., so as to realize convenient, fast and accurate inspection and testing of the processing accuracy of Charpy impact specimens. Attached Figure Description
[0019] Figure 1 This is a diagram showing the dimensions of the Charpy impact test specimen size inspection plate.
[0020] Figure 2 This is a structural diagram of the Charpy impact test specimen size inspection plate. Detailed Implementation
[0021] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0022] Reference Figure 1 and Figure 2 As shown, the Charpy impact specimen size inspection plate in this embodiment is a specialized tool for inspecting the dimensions of impact specimens. The dimensions of the impact specimen include: specimen length, specimen width, specimen height, ligament width, notch symmetry plane-end distance, notch symmetry plane-specimen longitudinal axis angle, and the included angle between adjacent longitudinal planes of the specimen. In this embodiment, the inspection plate uses a 5mm thick transparent, high-density acrylic glass or stainless steel sheet as the substrate. Corresponding inspection points are set on the substrate using dimensional markings and cuts. The dimensions of the Charpy impact specimen are determined by contact and visual inspection to determine whether they meet the requirements of the GB / T229-2020 standard.
[0023] Specifically, the substrate is provided with:
[0024] Length and width inspection items: This includes multiple sets of rectangular holes, each set containing two rectangular holes of different lengths and widths. In each set of rectangular holes, the two lengths correspond to the upper and lower limits of the length dimension of the impact specimen to be tested, respectively. The width of the hole with the upper limit of the length dimension corresponds to the upper limit of the width dimension of the impact specimen to be tested, and the width of the hole with the lower limit of the length dimension corresponds to the lower limit of the width dimension of the impact specimen to be tested. During inspection, by comparison, if the length and width of the impact specimen are between the corresponding upper and lower limits, then it meets the requirements.
[0025] Among the multiple sets of rectangular holes for length and width testing, there is a set of rectangular holes for testing the length and width of U-shaped notch samples and a set of rectangular holes for testing the length and width of V-shaped notch samples.
[0026] Height detection items: include multiple sets of rectangular holes, each set including two rectangular holes with different heights and widths; in each set of rectangular holes, the length and width of one hole correspond to the upper limit of the height dimension and the upper limit of the width dimension of the impact specimen to be tested, respectively, and the length and width of the other hole correspond to the lower limit of the height dimension and the lower limit of the width dimension of the impact specimen to be tested, respectively.
[0027] Ligament width testing items include multiple rectangular holes with one side opening at the edge of the matrix. The upper limit of the opening width is the upper limit of the ligament width dimension, and the lower limit of the opening width is the lower limit of the ligament width dimension.
[0028] Notch symmetry plane - end distance detection item: includes multiple rectangular holes with one side opening at the edge of the substrate. The upper limit of the opening length is the upper limit of the notch symmetry plane - end distance dimension, and the lower limit of the opening length is the lower limit of the notch symmetry plane - end distance dimension.
[0029] Test item for the included angle between adjacent longitudinal planes of the sample: Two holes are made at the corner of the substrate to create a comparison angle. One angle is used as the upper limit of the comparison angle, and the other angle is used as the lower limit of the comparison angle. During the inspection, the two angles are compared separately. The vertex of the sample after being placed against the upper limit angle should not be transparent, while the vertex of the sample after being placed against the lower limit angle must be transparent. When both conditions are met, the tested sample meets the requirements.
[0030] Specifically, a hole is made in the upper left corner of the substrate, a 91° angle is created and marked, and a hole is made in the upper right corner of the substrate, an 89° angle is created and marked. After the sample is attached to the 91° angle, the vertex cannot transmit light, and after the sample is attached to the 89° angle, the vertex must transmit light. When both conditions are met, the tested sample meets the requirements.
[0031] Notch Symmetry Plane - Specimen Longitudinal Axis Angle Inspection Item: Two holes are made at the corner of the substrate to create a comparison angle. One angle is used as the upper limit of the comparison angle, and the other angle is used as the lower limit of the comparison angle. During inspection, the two angles are compared separately. The vertex of the sample after being placed against the upper limit angle should not be transparent, while the vertex of the sample after being placed against the lower limit angle must be transparent. When both conditions are met, the tested sample meets the requirements.
[0032] Specifically, a hole is made in the lower left corner of the substrate, a 92° angle is created and marked, and a hole is made in the upper right corner of the substrate, an 88° angle is created and marked. After the sample is attached to the 92° angle, the vertex cannot transmit light, and after the sample is attached to the 88° angle, the vertex must transmit light. When both conditions are met, the tested sample meets the requirements.
[0033] Among them, the dimensions of the openings for the length and width test items, height test items, ligament width test items, notch symmetry plane-end distance test items, angle between adjacent longitudinal planes of the specimen test items, and notch symmetry plane-specimen longitudinal axis angle test items are all marked.
[0034] As can be seen from the above technical solution, by engraving or carving the dimensions to be inspected of the Charpy impact specimen on the substrate, the detection plate of this utility model can reasonably observe and measure the specimen length, specimen width, specimen height, ligament width, notch symmetry plane-end distance, notch symmetry plane-specimen longitudinal axis angle, and the included angle between adjacent longitudinal planes of the specimen, etc., so as to achieve convenient, fast and accurate inspection and testing of the processing accuracy of the Charpy impact specimen.
[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A Charpy impact specimen size inspection plate, characterized in that, This includes: a substrate made of plexiglass or stainless steel sheet, with impact test specimen size inspection points set on the substrate by means of dimensional markings and cuts, and the identification of whether the Charpy impact specimen size meets the requirements of GB / T229-2020 standard by means of close contact and visual inspection; the impact specimen size includes: specimen length, specimen width, specimen height, ligament width, notch symmetry plane-end distance, notch symmetry plane-specimen longitudinal axis angle, and the included angle between adjacent longitudinal planes of the specimen.
2. The Charpy impact specimen size inspection plate as described in claim 1, characterized in that, The length and width testing items include multiple sets of rectangular holes, each set having two rectangular holes with different lengths and widths; in each set of rectangular holes, the two lengths correspond to the upper limit and lower limit of the length dimension of the impact specimen to be tested, respectively, the width of the hole with the upper limit of the length dimension corresponds to the upper limit of the width dimension of the impact specimen to be tested, and the width of the hole with the lower limit of the length dimension corresponds to the lower limit of the width dimension of the impact specimen to be tested.
3. The Charpy impact specimen size inspection plate as described in claim 2, characterized in that, Among the multiple sets of rectangular holes for length and width testing, there is a set of rectangular holes for testing the length and width of U-shaped notch samples and a set of rectangular holes for testing the length and width of V-shaped notch samples.
4. The Charpy impact specimen size inspection plate as described in claim 1, characterized in that, The height detection item includes multiple sets of rectangular holes, each set including two rectangular holes with different heights and widths; in each set of rectangular holes, the length and width of one hole correspond to the upper limit of the height dimension and the upper limit of the width dimension of the impact specimen to be tested, respectively, and the length and width of the other hole correspond to the lower limit of the height dimension and the lower limit of the width dimension of the impact specimen to be tested, respectively.
5. The Charpy impact specimen size inspection plate as described in claim 1, characterized in that, The ligament width testing items include multiple rectangular holes with one side opening at the edge of the matrix. The upper limit of the opening width is the upper limit of the ligament width dimension, and the lower limit of the opening width is the lower limit of the ligament width dimension.
6. The Charpy impact specimen size inspection plate as described in claim 1, characterized in that, The notch symmetry plane-end distance detection item includes multiple rectangular holes with one side opening at the edge of the substrate. The upper limit of the opening length is the upper limit of the notch symmetry plane-end distance dimension, and the lower limit of the opening length is the lower limit of the notch symmetry plane-end distance dimension.
7. The Charpy impact specimen size inspection plate as described in claim 1, characterized in that, The test item for the angle between adjacent longitudinal planes of the sample includes making two holes at the corner of the substrate to create a comparison angle. One angle is used as the upper limit of the comparison angle, and the other angle is used as the lower limit of the comparison angle. During the inspection, the two angles are compared separately. The vertex of the sample after being placed against the upper limit angle should not be transparent, while the vertex of the sample after being placed against the lower limit angle must be transparent. When both conditions are met, the tested sample meets the requirements.
8. The Charpy impact specimen size inspection plate as described in claim 7, characterized in that, The test items for the included angle between adjacent longitudinal planes of the sample include: an opening at the upper left corner of the substrate, a 91° angle is made and marked, an opening at the upper right corner of the substrate, an 89° angle is made and marked, the vertex of the sample should not be transparent after it is placed against the 91° angle, and the vertex of the sample should be transparent after it is placed against the 89° angle. When both conditions are met, the tested sample meets the requirements.
9. The Charpy impact specimen size inspection plate as described in claim 1, characterized in that, The notch symmetry plane - the longitudinal axis angle detection item of the sample includes making two holes at the corner of the substrate to create a comparison angle. One angle is used as the upper limit of the comparison angle, and the other angle is used as the lower limit of the comparison angle. During the inspection, the two angles are compared separately. The vertex of the sample after being placed against the upper limit angle should not be transparent, while the vertex of the sample after being placed against the lower limit angle must be transparent. When both conditions are met, the tested sample meets the requirements.
10. The Charpy impact specimen size inspection plate as described in claim 9, characterized in that, The test items for the notch symmetry plane - longitudinal axis angle of the sample include making a hole at the lower left corner of the substrate, creating a 92° angle and marking it, making a hole at the upper right corner of the substrate, creating an 88° angle and marking it, ensuring that the vertex of the sample is not transparent after being placed against the 92° angle, and that the vertex of the sample is transparent after being placed against the 88° angle. When both conditions are met, the tested sample meets the requirements.