A method for manufacturing a boron-containing polyethylene material radiation detection sensitivity image quality meter
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI APOLLO MACHINERY CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-08-07
AI Technical Summary
如灵敏度像质计选择不恰当,缺陷评定不准确,就会造成较大辐射事故的发生
[0026] 1. Using leftover material from the same product, an image quality meter with the same groove shape as the product's absorption characteristics is made. The depth of the groove is calculated using an arithmetic sequence, and the image quality meter is then manufactured, thus facilitating accurate X-ray inspection of special metal materials containing boron polyethylene.
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Figure CN120594564B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of X-ray inspection technology, and in particular to a method for manufacturing a X-ray inspection sensitivity image quality meter made of boron-containing polyethylene material. Background Technology
[0002] Image quality meters are important tools for inspecting and quantitatively evaluating the quality of radiographic images. They are usually made of materials that are the same as or similar to the material or absorption coefficient of the product being inspected, and a series of indicative structures with thickness differences (such as wires, holes, grooves, etc.) are artificially preset. However, the values indicated by the image quality meter are not entirely equivalent to the size of natural defects that can be detected.
[0003] Image quality analyzers (IQAs) required for X-ray inspection of common metal materials can be purchased directly from the market in the required models and series. However, IQAs required for X-ray inspection of special metal materials containing boron polyethylene are not available on the market. Without advanced inspection equipment such as DR (radiofrequency) systems, traditional X-ray inspection requires the fabrication of an IQA made of the same material as the material being inspected, according to standards, to evaluate the product's quality.
[0004] According to HB / Z60 requirements, internal defects in molded products are inspected using X-ray irradiation. Defects include porosity, inclusions, and cracks. Within any 100mm x 100mm area, no more than five defects between 2mm and 5mm in diameter, and no more than one defect between 5mm and 10mm in diameter, are permitted. Inappropriate selection of the image quality meter or inaccurate defect assessment can lead to significant radiation accidents. Summary of the Invention
[0005] To facilitate accurate X-ray inspection of boron-containing polyethylene, this application provides a method for manufacturing a X-ray inspection sensitivity image quality meter for boron-containing polyethylene materials.
[0006] The method for manufacturing a radiographic sensitivity image quality meter for boron-containing polyethylene material provided in this application adopts the following technical solution:
[0007] A method for manufacturing a radiometric sensitivity image quality meter made of boron-containing polyethylene material includes the following steps: S1: using a wire cutting device to cut the product scrap into a cuboid image quality meter base block; S2: calculating the depth of multiple grooves by an arithmetic sequence, which are sequentially increasing and are h1, h2, h3...hn respectively, with the common difference of the arithmetic sequence being d; S3: using a grooving mechanism to process multiple grooves at equal intervals on the upper surface of the base block.
[0008] By adopting the above technical solution, an image quality meter with the same groove shape as the product's absorption characteristics can be made using leftover product material of the same material. The depth of the groove can be calculated by an arithmetic sequence and the image quality meter can be manufactured, thereby facilitating accurate X-ray detection of special metal materials containing boron polyethylene.
[0009] Preferably, in step S1, the length of the base block is 40mm and the width of the base block is 10mm.
[0010] By adopting the above technical solution, the length of the base block is 40mm and the width of the base block is 10mm, which makes the detection results of the image quality meter more accurate.
[0011] Preferably, when the product thickness is less than 70mm, the thickness of the base block is 2mm, h1 = 0.1mm, and d = 0.1mm.
[0012] By adopting the above technical solution, when the product thickness is less than 70mm, the thickness of the base block is 2mm, h1=0.1mm, d=0.1mm, which makes the image quality meter's detection results more accurate.
[0013] Preferably, when the product thickness is between 70-200mm, the thickness of the base block is 5mm, h1=0.8mm, and d=0.2mm.
[0014] By adopting the above technical solution, when the product thickness is between 70-200mm, the thickness of the base is 5mm, h1=0.8mm, and d=0.2mm, making the image quality meter's detection results more accurate.
[0015] Preferably, the grooving mechanism includes a base plate, the base block is placed on the base plate, the base plate is provided with a fixing component for fixing the base block, the base plate is provided with multiple guide posts, a lifting seat is slidably arranged on the multiple guide posts, a sliding seat is provided at the bottom of the lifting seat, multiple grinding blades are equally spaced on the bottom wall of the sliding seat, the height of the multiple grinding blades gradually increases, the height difference between each two adjacent grinding blades is d, the sliding seat is slidably arranged at the bottom of the lifting seat along the length direction of the grinding blades, a positioning rod is provided on the base plate, the positioning rod passes through the base plate, a positioning sleeve is threaded on the positioning rod, the bottom of the base plate moves to abut against the top of the positioning sleeve, and a scale line is provided on the positioning rod along its own length direction.
[0016] By adopting the above technical solution, when processing the groove, the base block is first placed on the base plate and fixed with the fixing component. Then, the positioning sleeve is rotated and the height of the positioning sleeve is adjusted according to the scale line. Then, the lifting seat is pressed down. The lifting seat drives the grinding tool to move down through the sliding seat, so that the grinding tool abuts against the upper surface of the base block. Finally, the sliding seat is slid back and forth. The sliding seat drives multiple grinding tools to move back and forth, so that multiple grooves can be opened on the base block at the same time, which is convenient for manufacturing image quality meters.
[0017] Preferably, the base plate has a receiving groove, the base block is placed in the receiving groove, the fixing assembly includes two sets of threaded rods and push plates, the two push plates are slidably disposed on the two adjacent inner side walls of the receiving groove, the two push plates respectively abut against the adjacent two side walls of the base block, the two threaded rods are threadedly disposed in the base plate, and the two threaded rods are rotatably connected to the two push plates respectively.
[0018] By adopting the above technical solution, the base block is placed in the receiving groove, and the two threaded rods are rotated. The two threaded rods drive the two push plates to move towards the receiving groove. The two push plates move to abut against the base block and press the base block firmly into the receiving groove, thereby quickly fixing the base block.
[0019] Preferably, a sliding groove is provided on the bottom wall of the sliding seat, and multiple partitions are slidably arranged in the sliding groove. Each of the grinding blades is located between two adjacent partitions. A locking member is provided in the sliding seat, and the locking member passes through the grinding blade and the partition and is fixedly connected to the sliding seat.
[0020] By adopting the above technical solution, the grinding tool is fixed with a locking component, and two adjacent partitions clamp the grinding tool, making the grinding tool more stable. After unlocking the locking component, the grinding tool can be removed from the sliding seat, which makes it easy to replace the grinding tool.
[0021] Preferably, one end of the slide groove is open, and the partition block is detachably and slidably disposed within the slide groove.
[0022] By adopting the above technical solution, one end of the slide is open, allowing the spacer to be removed from the slide, thus facilitating the replacement of spacers of different thicknesses, and making it suitable for manufacturing image quality meters with different groove spacing.
[0023] Preferably, an elastic element is sleeved on the guide column, and the two ends of the elastic element abut against the base plate and the lifting seat, respectively.
[0024] By adopting the above technical solution, when the grooving mechanism is not in use, the elastic element can push the lifting seat to move upward, thereby facilitating the placement of the base block on the base plate for fixation.
[0025] In summary, this application includes at least one of the following beneficial technical effects:
[0026] 1. Using leftover material from the same product, an image quality meter with the same groove shape as the product's absorption characteristics is made. The depth of the groove is calculated using an arithmetic sequence, and the image quality meter is then manufactured, thus facilitating accurate X-ray inspection of special metal materials containing boron polyethylene.
[0027] 2. Using a grooving mechanism, when processing the grooves, first place the base block on the base plate and fix it with a fixing component. Then rotate the positioning sleeve and adjust the height of the positioning sleeve according to the scale line. Then press down the lifting seat. The lifting seat drives the grinding tool to move down through the sliding seat, so that the grinding tool abuts against the upper surface of the base block. Finally, slide the sliding seat back and forth. The sliding seat drives multiple grinding tools to move back and forth, so that multiple grooves can be opened on the base block at the same time, which is convenient for making an image quality meter.
[0028] 3. The sharpening tool is fixed by the locking mechanism, and the two adjacent partitions clamp the sharpening tool, making the installation of the sharpening tool more stable. After the locking mechanism is released, the sharpening tool can be taken out from the sliding seat, which makes it easy to replace the sharpening tool. Attached Figure Description
[0029] Figure 1 This is a flowchart of the image quality meter manufacturing method in Embodiment 1 of this application;
[0030] Figure 2 This is a schematic diagram of the image quality meter in Embodiment 1 of this application;
[0031] Figure 3 This is a schematic diagram of the image quality meter in Embodiment 2 of this application;
[0032] Figure 4 This is a schematic diagram of the overall structure of the slotting mechanism in Embodiment 3 of this application;
[0033] Figure 5 This is a partial exploded view of the slotting mechanism in Embodiment 3 of this application; the fixed components are shown in the exploded view.
[0034] Figure 6 This is an exploded view of part of the grooving mechanism in Embodiment 3 of this application; to highlight the grinding tool.
[0035] Reference numerals: 1. Base block; 2. Groove; 3. Base plate; 4. Fixing assembly; 41. Threaded rod; 42. Push plate; 5. Guide column; 6. Lifting seat; 7. Sliding seat; 8. Grinding tool; 9. Positioning rod; 10. Positioning sleeve; 11. Scale line; 12. Receiving groove; 13. Slide groove; 14. Spacer; 15. Locking element; 16. Elastic element; 17. First handle; 18. Second handle; 19. Knob. Detailed Implementation
[0036] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.
[0037] This application discloses a method for manufacturing a radiometric sensitivity image quality meter made of boron-containing polyethylene material.
[0038] Example 1:
[0039] Reference Figure 1 and Figure 2 A method for manufacturing a radiographic sensitivity image quality meter made of boron-containing polyethylene material includes the following steps:
[0040] S1: Use wire cutting equipment to cut the product scrap into a cuboid image quality meter base block 1. The product thickness is less than 70mm, the length of base block 1 is 40mm, the width of base block 1 is 10mm, and the thickness of base block 1 is 2mm.
[0041] S2: The depths of the seven grooves 2 are calculated to be 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, and 0.7 mm respectively using an arithmetic sequence. The common difference of the arithmetic sequence is 0.1 mm.
[0042] S3: Use a grooving mechanism to process seven grooves 2 at equal intervals on the upper surface of the base block 1. The width of the grooves 2 is 1.5mm, and the distance between each two adjacent grooves 2 is 3mm.
[0043] The implementation principle of the method for manufacturing a radiometric sensitivity image quality meter for boron-containing polyethylene material according to an embodiment of this application is as follows: using leftover material of the same material to manufacture an image quality meter with the same groove shape as the product absorption characteristics, calculating the depth of the groove 2 through an arithmetic sequence and processing the image quality meter, thereby facilitating accurate radiometric detection of special metal materials containing boron polyethylene.
[0044] Example 2:
[0045] Reference Figure 3 The difference between this embodiment and Embodiment 1 is that the product thickness is between 70-200mm, and the thickness of the base block 1 is 5mm. The depths of the seven grooves 2 are 0.8, 1.0, 1.2, 1.4, 1.6, 1.8, and 2.0mm, respectively, and the tolerance of the arithmetic sequence is 0.2mm.
[0046] Example 3:
[0047] Reference Figure 4 and Figure 5 This embodiment discloses the specific structure of the grooving mechanism, which includes a base plate 3 fixedly installed on a workbench. The vertical cross-section of the base plate 3 is convex. A receiving groove 12 is formed in the middle of the raised top wall of the base plate 3, and the base block 1 is placed in the receiving groove 12. A fixing component 4 is installed on the base plate 3, which fixes the base block 1 in the receiving groove 12.
[0048] Specifically, the fixing component 4 includes two sets of threaded rods 41 and push plates 42. The two threaded rods 41 are threadedly installed in the base plate 3, and the two push plates 42 are slidably installed in the base plate 3. The ends of the two threaded rods 41 are rotatably connected to the two push plates 42, and a knob 19 is fixedly installed on the end of the threaded rod 41 away from the push plate 42. The side of the push plate 42 away from the threaded rod 41 moves into the receiving groove 12. The two push plates 42 are located in the two adjacent inner side walls of the receiving groove 12, and the two push plates 42 move to abut against the adjacent two side walls of the base block 1.
[0049] Place the base block 1 into the receiving groove 12, and rotate the two knobs 19. The two knobs 19 drive the two push plates 42 to move closer to the receiving groove 12 via the threaded rod 41. When the push plates 42 move and contact the base block 1, pressing the base block 1 tightly against the receiving groove 12, the base block 1 can be quickly fixed.
[0050] Reference Figure 4 , Figure 5 and Figure 6 Four guide posts 5 are fixedly installed on the raised top wall in the middle of the base plate 3. A lifting seat 6 is slidably installed on the four guide posts 5 in the vertical direction. The lifting seat 6 is located directly above the base block 1. A first handle 17 is fixedly installed on the top wall of the lifting seat 6. Each guide post 5 is fitted with an elastic element 16. In this application, the elastic element 16 can be a spring. The upper and lower ends of the elastic element 16 abut against the bottom wall of the lifting seat 6 and the top wall of the base plate 3, respectively. The elastic element 16 can push the lifting seat 6 to move upward, thereby facilitating the placement and fixing of the base block 1 into the receiving groove 12.
[0051] A sliding seat 7 is slidably mounted horizontally on the bottom wall of the lifting seat 6, and a second handle 18 is fixedly mounted on the end of the sliding seat 7. A groove 13 is formed on the bottom wall of the sliding seat 7, with one end open. Eight spacers 14 are slidably mounted within the groove 13 on the sliding seat 7. A grinding blade 8 is installed between every two adjacent spacers 14, and the height of the seven grinding blades 8 gradually increases. The thickness of the grinding blade 8 is 1.5 mm, and the thickness of the spacers 14 is 3 mm.
[0052] A locking element 15 is installed inside the sliding base 7. The locking element 15 passes through multiple spacers 14 and the grinding blade 8 and is fixedly connected to the sliding shaft 7. In this application, the locking element 15 can be a bolt. Using locking blocks can fix multiple grinding blades 8 to the bottom of the sliding base 7, and two adjacent spacers 14 clamp one grinding blade 8, improving the stability of the grinding blade 8 installation. After releasing the locking element 15, the grinding blade 8 can be removed from the sliding base 7, thus facilitating the replacement of grinding blades 8 with different heights and thicknesses.
[0053] Positioning rods 9 are fixedly installed on both sides of the protrusion on the top wall of the base. The two positioning rods 9 pass through both ends of the lifting seat 6 in a vertical direction. Each positioning rod 9 is threaded with a positioning sleeve 10, and each positioning rod 9 is engraved with a scale line 11 along its own axis.
[0054] The implementation principle of this embodiment is as follows: When processing the groove 2, the base block 1 is first placed in the receiving groove 12 of the base plate 3. The two knobs 19 are rotated, and the two push plates 42 firmly fix the base block 1 in the receiving groove 12. Then, the positioning sleeve 10 is rotated, and the height of the positioning sleeve 10 is precisely adjusted according to the scale line 11. After the adjustment is completed, the lifting seat 6 is pressed down by the first handle 17, so that the lifting seat 6 drives the grinding tool 8 to move down through the sliding seat 7 until the grinding tool 8 is in close contact with the upper surface of the base block 1. Finally, the sliding seat 7 is driven to slide back and forth by the second handle 18. The sliding seat 7 drives multiple grinding tools 8 to move accordingly. In this way, multiple grooves 2 can be processed on the base block 1 at the same time, providing an efficient and convenient way for the production of image quality meters.
[0055] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.
Claims
1. A method for manufacturing a radiographic sensitivity image quality meter made of boron-containing polyethylene material, characterized in that: Includes the following steps: S1: Use wire cutting equipment to cut the product scrap into cuboid image quality meter base blocks (1); S2: The depths of multiple trenches (2) are calculated by an arithmetic sequence, which are successively increasing and are h1, h2, h3...hn respectively. The common difference of the arithmetic sequence is d. S3: Using a grooving mechanism, multiple grooves (2) are simultaneously and equally spaced on the upper surface of the base block (1); The grooving mechanism includes a base plate (3), on which the base block (1) is placed. A fixing assembly (4) for fixing the base block (1) is provided on the base plate (3). Multiple guide posts (5) are provided on the base plate (3), and a lifting seat (6) is slidably mounted on each of the guide posts (5). A sliding seat (7) is provided at the bottom of the lifting seat (6), and multiple grinding blades (8) are evenly spaced on the bottom wall of the sliding seat (7). The height of the multiple grinding blades (8) is... The height gradually increases, and the height difference between each two adjacent grinding blades (8) is d. The sliding seat (7) is slidably disposed at the bottom of the lifting seat (6) along the length direction of the grinding blade (8). A positioning rod (9) is provided on the base plate (3). The positioning rod (9) passes through the base plate (3). A positioning sleeve (10) is threaded on the positioning rod (9). The bottom of the lifting seat (6) moves to abut against the top of the positioning sleeve (10). A scale line (11) is provided on the positioning rod (9) along its own length direction. The base plate (3) is provided with a receiving groove (12), the base block (1) is placed in the receiving groove (12), the fixing component (4) includes two sets of threaded rods (41) and push plates (42), the two push plates (42) are slidably disposed on the two adjacent inner side walls of the receiving groove (12), the two push plates (42) respectively abut against the adjacent two side walls of the base block (1), the two threaded rods (41) are threaded in the base plate (3), and the two threaded rods (41) are rotatably connected to the two push plates (42) respectively; The sliding seat (7) has a sliding groove (13) on its bottom wall. Multiple partitions (14) are slidably arranged in the sliding groove (13). Each grinding blade (8) is located between two adjacent partitions (14). A locking member (15) is provided in the sliding seat (7). The locking member (15) passes through the grinding blade (8) and the partition (14) and is fixedly connected to the sliding seat (7). One end of the sliding groove (13) is open. The partition (14) is detachably and slidably arranged in the sliding groove (13). An elastic member (16) is sleeved on the guide post (5). The two ends of the elastic member (16) abut against the bottom plate (3) and the lifting seat (6) respectively.
2. The method for manufacturing a radiographic sensitivity image quality meter for boron-containing polyethylene material according to claim 1, characterized in that: In step S1, the length of the base block (1) is 40mm and the width of the base block (1) is 10mm.
3. The method for manufacturing a radiographic sensitivity image quality meter for boron-containing polyethylene material according to claim 2, characterized in that: When the product thickness is less than 70mm, the thickness of the base block (1) is 2mm, h1=0.1mm, d=0.1mm.
4. The method for manufacturing a radiographic sensitivity image quality meter for boron-containing polyethylene material according to claim 2, characterized in that: When the product thickness is between 70-200mm, the thickness of the base block (1) is 5mm, h1=0.8mm, and d=0.2mm.
Citation Information
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