Manufacturing method of radiographic detection sensitivity image quality indicator made of boron-containing polyethylene material

Abstract

The invention discloses a boron-containing polyethylene material radiographic detection sensitivity image quality indicator manufacturing method, and relates to the technical field of radiographic detection, and the method comprises the following steps: S1, using a wire cutting device to cut a product excess material into a cuboid image quality indicator base block; s2, through an arithmetic progression, sequentially increasing depths of the plurality of grooves are calculated and are h1, h2, h3,..., hn respectively, and the tolerance of the arithmetic progression is d; and S3, a grooving mechanism is used for machining a plurality of grooves in the upper surface of the base block at equal intervals. The groove type image quality indicator with the same absorption characteristic as the product is manufactured by using the product excess material of the same material, the depth of the groove is calculated through the arithmetic progression, and the image quality indicator is processed, so that accurate radiographic inspection can be conveniently carried out on a special metal material containing boron polyethylene.

Description

Technical Field

[0001] The present application relates to the field of radiation detection technology, and in particular to a method for manufacturing a radiation detection sensitivity image quality meter made of boron-containing polyethylene material. Background Art

[0002] Image quality meters are important tools for inspecting and quantitatively evaluating the quality of radiographic films. They are usually made of materials that are the same or similar in material or absorption coefficient to the product being inspected, and are manually pre-set with a series of indicative structures with different thicknesses (such as wires, holes, grooves, etc.). However, the values ​​indicated by the image quality meter are not completely equivalent to the size of natural defects that can be detected.

[0003] While the required models and series of image quality meters (IQIs) for radiographic testing of common metal materials are readily available on the market, those required for testing specialized metal materials like boron-containing polyethylene are not readily available. Without advanced DR testing equipment, traditional radiographic testing requires the manufacture of an IQI made from the same material as the material being tested, in accordance with standards, to assess product quality.

[0004] According to HB / Z60 requirements, molded products undergo X-ray inspection for internal defects, including pores, inclusions, and cracks. Within any 100mm x 100mm area, no more than five defects between 2mm and 5mm are detected, and no more than one defect between 5mm and 10mm is detected. Improper selection of an image quality meter with the wrong sensitivity and inaccurate defect assessment can lead to serious radiation accidents. Summary of the Invention

[0005] In order to facilitate accurate radiographic detection of special metal materials such as boron-containing polyethylene, the present application provides a method for manufacturing a sensitive image quality meter for radiographic detection of boron-containing polyethylene materials.

[0006] The present application provides a method for manufacturing a boron-containing polyethylene material radiation detection sensitivity image quality meter using the following technical solutions:

[0007] A method for manufacturing a radiographically sensitive image quality meter for boron-containing polyethylene material comprises the following steps: S1: using a wire cutting device to cut product residue into a rectangular image quality meter base block; S2: calculating, by an arithmetic progression, the depths of a plurality of grooves, which increase in sequence and are h1, h2, h3, ..., hn, respectively, with a tolerance of the arithmetic progression being d; and S3: using a slotting mechanism to machine a plurality of grooves at equal intervals on the upper surface of the base block.

[0008] By adopting the above technical solution, the leftover materials of products of the same material are used to make an image quality meter with the same groove shape as the product's absorption characteristics. The depth of the groove is calculated through an arithmetic progression and the image quality meter is processed, thereby facilitating accurate X-ray detection of special metal materials such as boron-containing polyethylene.

[0009] Preferably, in step S1 , the length of the base block is 40 mm, and the width of the base block is 10 mm.

[0010] By adopting the above technical solution, the length of the base block is 40 mm and the width of the base block is 10 mm, making the detection result of the image quality meter more accurate.

[0011] Preferably, when the product thickness is less than 70 mm, the thickness of the base block is 2 mm, h1 = 0.1 mm, and d = 0.1 mm.

[0012] By adopting the above technical solution, when the product thickness is less than 70 mm, the thickness of the base block is 2 mm, h1 = 0.1 mm, d = 0.1 mm, making the detection result of the image quality meter more accurate.

[0013] Preferably, when the product thickness is between 70-200 mm, the thickness of the base block is 5 mm, h1 = 0.8 mm, and d = 0.2 mm.

[0014] By adopting the above technical solution, when the product thickness is between 70-200 mm, the thickness of the base block is 5 mm, h1 = 0.8 mm, d = 0.2 mm, making the detection result of the image quality meter more accurate.

[0015] Preferably, the grooving mechanism includes a base plate, the base block is placed on the base plate, a fixing component for fixing the base block is provided on the base plate, a plurality of guide columns are provided on the base plate, a lifting seat is slidably provided on the plurality of guide columns, a sliding seat is provided at the bottom of the lifting seat, a plurality of grinding knives are equidistantly provided on the bottom wall of the sliding seat, the heights of the plurality of grinding knives gradually increase, and the height difference between each two adjacent grinding knives is d, the sliding seat is slidably provided at the bottom of the lifting seat along the length direction of the grinding knives, a positioning rod is provided on the base plate, the positioning rod passes through the base plate, a positioning sleeve is provided on the threaded sleeve of 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 grooves, the base block is first placed on the bottom plate, and the base block is fixed using a fixing assembly. 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 downward, and the lifting seat drives the grinding knife to move downward through the sliding seat, so that the grinding knife abuts the upper surface of the base block. Finally, the sliding seat is slid back and forth, and the sliding seat drives multiple grinding knives 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.

[0017] Preferably, a receiving groove is provided on the bottom plate, and the base block is placed in the receiving groove. The fixing assembly includes two groups of threaded rods and push plates. The two push plates are slidably arranged on the adjacent inner walls of the receiving groove. The two push plates respectively abut the adjacent two side walls of the base block. The two threaded rods are threadedly arranged in the bottom 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 accommodating groove, and the two threaded rods are rotated. The two threaded rods drive the two push plates to move toward the accommodating groove. The two push plates move to abut the base block and press the base block tightly in the accommodating groove, so that the base block can be quickly fixed.

[0019] Preferably, a sliding groove is provided on the bottom wall of the sliding seat, and a plurality of spacers are slidingly arranged in the sliding groove, each of the sharpeners is located between two adjacent spacers, and a locking piece is provided in the sliding seat, and the locking piece passes through the sharpener and the spacer and is fixedly connected to the sliding seat.

[0020] By adopting the above technical solution, the grinding knife is fixed by using a locking piece, and the two adjacent spacers clamp the grinding knife, so that the grinding knife is installed more stably. After unlocking the locking piece, the grinding knife can be taken out from the sliding seat, which makes it easy to replace the grinding knife.

[0021] Preferably, one end of the slide groove is open, and the spacer is detachably slidably arranged in the slide groove.

[0022] By adopting the above technical solution, one end of the slide groove is open, so that the spacer can be removed from the slide groove, thereby facilitating the replacement of spacers of different thicknesses, and is suitable for manufacturing image quality meters with different groove spacings.

[0023] Preferably, an elastic member is sleeved on the guide column, and two ends of the elastic member respectively abut against the bottom plate and the lifting seat.

[0024] By adopting the above technical solution, when the slotting mechanism is not in use, the elastic member can push the lifting seat to move upward, thereby facilitating the placement of the base block on the bottom plate for fixation.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. Using leftover product stock of the same material, we fabricate an image quality indicator with a groove shape that matches the product's absorption characteristics. By calculating the groove depth using an arithmetic progression, we can then fabricate the image quality indicator, facilitating accurate radiographic inspection of special metal materials such as boron-containing polyethylene.

[0027] 2. When machining grooves using the slotting mechanism, first place the base block on the bottom plate and secure it with a fixing assembly. Then, rotate the positioning sleeve and adjust its height according to the scale. Next, press down on the lifting seat, which drives the grinding cutter downward via the sliding seat, bringing the grinding cutter into contact with the upper surface of the base block. Finally, the sliding seat is slid back and forth, driving multiple grinding cutters to move back and forth. This allows for simultaneous creation of multiple grooves on the base block, facilitating the manufacture of an image quality meter.

[0028] 3. The knife grinder is fixed by a locking piece, and two adjacent spacers clamp the knife grinder, making the installation of the knife grinder more stable. After unlocking the locking piece, the knife grinder can be taken out from the sliding seat, making it easier to replace the knife grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a flow chart of the method for manufacturing an image quality meter in Example 1 of the present application;

[0030] Figure 2 Schematic diagram of the structure of the image quality meter in Example 1 of the present application;

[0031] Figure 3 Schematic diagram of the structure of the image quality meter in Example 2 of the present application;

[0032] Figure 4 This is a schematic diagram of the overall structure of the slotting mechanism in Example 3 of the present application;

[0033] Figure 5 This is an exploded view of a portion of the structure of the slotting mechanism in Example 3 of the present application; it is used to highlight the fixing components;

[0034] Figure 6 This is an exploded view of part of the structure of the slotting mechanism in Example 3 of the present application; it is used to highlight the sharpening of the knife.

[0035] Figure numerals: 1. base block; 2. groove; 3. bottom plate; 4. fixing assembly; 41. threaded rod; 42. push plate; 5. guide column; 6. lifting seat; 7. sliding seat; 8. sharpener; 9. positioning rod; 10. positioning sleeve; 11. scale line; 12. receiving groove; 13. slide groove; 14. spacer; 15. locking member; 16. elastic member; 17. first handle; 18. second handle; 19. knob. DETAILED DESCRIPTION

[0036] The following is combined with Figures 1-6 This application is described in further detail.

[0037] The embodiment of the present application discloses a method for manufacturing a radiographically sensitive image quality meter for boron-containing polyethylene material.

[0038] Example 1:

[0039] Reference Figure 1 and Figure 2 A method for manufacturing a boron-containing polyethylene material radiation detection sensitivity image quality meter comprises the following steps:

[0040] S1: Use wire cutting equipment to cut the product residue into a rectangular image quality meter base block 1. The product thickness is less than 70 mm. The length of the base block 1 is 40 mm, the width of the base block 1 is 10 mm, and the thickness of the base block 1 is 2 mm.

[0041] S2: The depths of the seven grooves 2 are calculated by an arithmetic progression, and are 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, and 0.7 mm, respectively. The tolerance of the arithmetic progression is 0.1 mm.

[0042] S3: seven grooves 2 are machined at equal intervals on the upper surface of the base block 1 using a slotting mechanism. The width of the grooves 2 is 1.5 mm, and the distance between any two adjacent grooves 2 is 3 mm.

[0043] The implementation principle of the method for manufacturing a radiographically sensitive image quality meter for boron-containing polyethylene material in an embodiment of the present application is as follows: using product leftovers of the same material to manufacture an image quality meter with the same groove shape as the product's absorption characteristics, calculating the depth of the groove 2 through an arithmetic progression and processing the image quality meter, thereby facilitating accurate radiographic detection of the special metal material of boron-containing polyethylene.

[0044] Example 2:

[0045] Reference Figure 3 The difference between this embodiment and embodiment 1 is that the product thickness is between 70-200 mm, and the thickness of the base block 1 is 5 mm. The depths of the seven grooves 2 are 0.8, 1.0, 1.2, 1.4, 1.6, 1.8, and 2.0 mm, respectively, and the tolerance of the arithmetic progression is 0.2 mm.

[0046] Example 3:

[0047] Reference Figure 4 and Figure 5 This embodiment discloses the specific structure of the slotting mechanism. The slotting mechanism includes a base plate 3 fixedly mounted on a workbench. The base plate 3 has a convex vertical cross-section. A receiving groove 12 is defined in the middle of the raised top wall of the base plate 3. The base block 1 is placed in the receiving groove 12. A fixing assembly 4 is mounted on the base plate 3 to secure the base block 1 in the receiving groove 12.

[0048] Specifically, the fixing assembly 4 includes two sets of threaded rods 41 and push plates 42. The two threaded rods 41 are threadedly mounted in the base plate 3, and the two push plates 42 are slidably mounted in the base plate 3. The ends of the two threaded rods 41 are rotatably connected to the two push plates 42, and the ends of the threaded rods 41 away from the push plates 42 are fixedly mounted with knobs 19. The push plates 42 move into the receiving groove 12 on the side away from the threaded rods 41. The two push plates 42 are respectively located in the adjacent inner side walls of the receiving groove 12, and the two push plates 42 move to abut the adjacent side walls of the base block 1.

[0049] Place the base block 1 into the receiving groove 12 and turn the two knobs 19. The two knobs 19 drive the two push plates 42 to move toward the receiving groove 12 through the threaded rods 41. When the push plates 42 move and contact the base block 1, the base block 1 is firmly pressed against the receiving groove 12, and the base block 1 is quickly fixed.

[0050] Reference Figure 4 、 Figure 5 and Figure 6 Four guide posts 5 are fixedly mounted on the raised top wall in the middle of the bottom plate 3. A lifting seat 6 is slidably mounted 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 mounted on the top wall of the lifting seat 6. An elastic member 16 is sleeved on each guide post 5. In this application, the elastic member 16 can be a spring. The upper and lower ends of the elastic member 16 respectively abut the bottom wall of the lifting seat 6 and the top wall of the bottom plate 3. The elastic member 16 can push the lifting seat 6 to move upward, thereby facilitating the placement and fixation of the base block 1 in the receiving groove 12.

[0051] A sliding seat 7 is mounted horizontally on the bottom wall of the lifting seat 6, with a second handle 18 fixedly mounted at its end. A slot 13 is defined on the bottom wall of the sliding seat 7, with one end open. Eight spacers 14 are mounted within the slot 13, slidably mounted on the sliding seat 7. A sharpening blade 8 is mounted between each pair of adjacent spacers 14, with the seven sharpening blades 8 increasing in height. The sharpening blades 8 are 1.5 mm thick, and the spacers 14 are 3 mm thick.

[0052] A locking member 15 is installed within the sliding seat 7. This member passes through multiple spacers 14 and the sharpener 8, securing it to the sliding shaft 7. In this application, the locking member 15 can be a bolt. Using the locking member allows multiple sharpeners 8 to be secured to the bottom of the sliding seat 7. Two adjacent spacers 14 clamp each sharpener 8, enhancing the secure installation of the sharpeners 8. Once the locking member 15 is released, the sharpener 8 can be removed from the sliding seat 7, facilitating replacement of sharpeners 8 with different heights and thicknesses.

[0053] The top wall of the base is located on both sides of the protrusion and is fixed with positioning rods 9. The two positioning rods 9 pass through the two ends of the lifting seat 6 in the vertical direction. A positioning sleeve 10 is threaded on each positioning rod 9, 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 bottom plate 3, and the two knobs 19 are turned. The two push plates 42 firmly fix the base block 1 in the receiving groove 12, and then the positioning sleeve 10 is rotated to accurately adjust the height of the positioning sleeve 10 according to the scale line 11; after the adjustment is completed, the lifting seat 6 is pressed downward by the first handle 17, so that the lifting seat 6 drives the grinding knife 8 downward through the sliding seat 7 until the grinding knife 8 is tightly abutted against the upper surface of the base block 1; finally, the sliding seat 7 is driven by the second handle 18 to slide back and forth, and the sliding seat 7 drives multiple grinding knives 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 to manufacture an image quality meter.

[0055] The above are merely optional embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure may be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A method for manufacturing a radiographically sensitive image quality meter for boron-containing polyethylene material, characterized by: The following steps are involved: S1: Use wire cutting equipment to cut the product residue into a rectangular image quality meter base block (1); S2: Calculate the depths of the plurality of grooves (2) in increasing order by an arithmetic progression and the depths are h1, h2, h3, ..., hn, respectively, and the common difference of the arithmetic progression is d; S3: using a slotting mechanism to machine a plurality of grooves (2) at equal intervals on the upper surface of the base block (1).

2. The method for manufacturing a boron-containing polyethylene material radiation detection sensitivity image quality meter according to claim 1, characterized in that: In step S1, the length of the base block (1) is 40 mm, and the width of the base block (1) is 10 mm.

3. The method for manufacturing a boron-containing polyethylene material radiation detection sensitivity image quality meter according to claim 2, characterized in that: When the product thickness is less than 70 mm, the thickness of the base block (1) is 2 mm, h1 = 0.1 mm, d = 0.1 mm.

4. The method for manufacturing a boron-containing polyethylene material radiation detection sensitivity image quality meter according to claim 2, characterized in that: When the product thickness is between 70-200 mm, the thickness of the base block (1) is 5 mm, h1 = 0.8 mm, and d = 0.2 mm.

5. The method for manufacturing a boron-containing polyethylene material radiation detection sensitivity image quality meter according to claim 1, characterized in that: The slotting mechanism comprises a bottom plate (3), the base block (1) is placed on the bottom plate (3), a fixing assembly (4) for fixing the base block (1) is provided on the bottom plate (3), a plurality of guide columns (5) are provided on the bottom plate (3), a lifting seat (6) is slidably provided on the plurality of guide columns (5), a sliding seat (7) is provided at the bottom of the lifting seat (6), a plurality of grinding knives (8) are provided on the bottom wall of the sliding seat (7) at equal intervals, and the height of the plurality of grinding knives (8) is 1 / 4 of the height of the plurality of grinding knives (8). The height difference between each two adjacent grinding knives (8) is d, the sliding seat (7) is slidably arranged at the bottom of the lifting seat (6) along the length direction of the grinding knives (8), a positioning rod (9) is arranged on the bottom plate (3), the positioning rod (9) passes through the bottom plate (3), a positioning sleeve (10) is threadedly sleeved on the positioning rod (9), the bottom of the bottom plate (3) moves to abut against the top of the positioning sleeve (10), and a scale line (11) is arranged on the positioning rod (9) along its own length direction.

6. The method for manufacturing a boron-containing polyethylene material radiation detection sensitivity image quality meter according to claim 5, characterized in that: The bottom plate (3) is provided with a receiving groove (12), the base block (1) is placed in the receiving groove (12), the fixing assembly (4) includes two groups of threaded rods (41) and push plates (42), the two push plates (42) are slidably arranged on the adjacent two inner walls of the receiving groove (12), the two push plates (42) respectively abut the adjacent two side walls of the base block (1), the two threaded rods (41) are threadedly arranged in the bottom plate (3), and the two threaded rods (41) are respectively rotatably connected to the two push plates (42).

7. The method for manufacturing a boron-containing polyethylene material radiation detection sensitivity image quality meter according to claim 5, characterized in that: A sliding groove (13) is provided on the bottom wall of the sliding seat (7), and a plurality of spacers (14) are slidably arranged in the sliding groove (13). Each of the sharpening knives (8) is located between two adjacent spacers (14). A locking member (15) is provided in the sliding seat (7), and the locking member (15) passes through the sharpening knives (8) and the spacers (14) and is fixedly connected to the sliding seat (7).

8. The method for manufacturing a boron-containing polyethylene material radiation detection sensitivity image quality meter according to claim 7, characterized in that: One end of the slide groove (13) is open, and the spacer (14) is detachably slidably arranged in the slide groove (13).

9. The method for manufacturing a boron-containing polyethylene material radiation detection sensitivity image quality meter according to claim 5, characterized in that: An elastic member (16) is sleeved on the guide column (5), and two ends of the elastic member (16) respectively abut against the bottom plate (3) and the lifting seat (6).

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