CN113720915A - Bone implant internal crack flaw detection equipment - Google Patents
Bone implant internal crack flaw detection equipment Download PDFInfo
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- CN113720915A CN113720915A CN202111287653.9A CN202111287653A CN113720915A CN 113720915 A CN113720915 A CN 113720915A CN 202111287653 A CN202111287653 A CN 202111287653A CN 113720915 A CN113720915 A CN 113720915A
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- bone implant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/28—Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water
Abstract
The invention discloses a bone implant internal crack flaw detection device, which belongs to the field of ultrasonic flaw detectors and adopts the following technology in order to solve the problem that the bone implant internal crack flaw detection device cannot be tightly attached to the outer surface of the bone implant when the ultrasonic flaw detector is mechanically moved: the lower end of the sliding block is provided with an angle adjusting mechanism, the lower end of the angle adjusting mechanism is provided with a clinging device, and the middle of the lower end of the angle adjusting mechanism is provided with an ultrasonic flaw detector; according to the internal crack flaw detection equipment for the bone implant, the elastic plate and the arc-shaped plate can be changed along with the arc surface of the bone implant to be detected, the elastic plate is bent upwards, the cleaning cloth and the arc-shaped strip are made to contact with the outer surface of the bone implant to be detected, the ultrasonic couplant is coated on the outer surface of the bone implant to be detected, the ultrasonic couplant is coated before detection by the ultrasonic flaw detector, the internal crack of the bone implant to be detected can be conveniently detected, and the ultrasonic couplant can be quantitatively sprayed out by the spray head.
Description
Technical Field
The invention relates to the field of ultrasonic flaw detectors, in particular to a flaw detection device for internal cracks of a bone implant.
Background
After the bone implant is produced, detection is required to ensure that no crack exists in the bone implant, and an ultrasonic detection technology is generally adopted for detection;
the Chinese utility model has the patent application number of CN202020848599.5, and the patent name is a forge piece internal crack ultrasonic flaw detection device, which comprises a workbench, wherein the lower end of the workbench is provided with a support box, the corners of the two sides of the lower end of the support box are provided with support columns, the two sides of the upper end of the workbench are respectively provided with a first fixed plate and a second fixed plate, the first fixed plate is positioned at the upper end of the workbench and is far away from one side of the second fixed plate, the upper ends of the first fixed plate and the second fixed plate are provided with a top plate, the middle part of the lower end of one side of the first fixed plate is provided with a control box, the front end of the control box is provided with a control panel, the upper end of the control panel is provided with a waveform display screen, the lower end of the waveform display screen is provided with a plurality of device switches, the middle part of one side of the second fixed plate is provided with a hydraulic telescopic rod in a penetrating way, one side of the upper end of the workbench is provided with a slide rail, a connecting seat matched with the sliding rail is arranged at the top end of the hydraulic telescopic rod, and a high-frequency ultrasonic generator is arranged at one end, away from the hydraulic telescopic rod, of the connecting seat;
when using the ultrasonic flaw detector to detect bone implant, because the surface of bone implant has the cambered surface, can't hug closely the surface at bone implant when mechanical removal ultrasonic flaw detector, there is the gap between the two, leads to detection effect not good, and when manual work removed ultrasonic flaw detector, the power consumption consuming time, the handheld shake that still can appear of a long time of ultrasonic flaw detector.
Disclosure of Invention
Technical problem to be solved
The invention mainly aims to provide flaw detection equipment for internal cracks of a bone implant, which solves the problem that an ultrasonic flaw detector cannot be attached to the outer surface of the bone implant when mechanically moved.
(II) technical scheme
In order to solve the technical problem, the invention provides bone implant internal crack flaw detection equipment which comprises a slide rail, a slide block, a support bar, U-shaped frames, fasteners and an ultrasonic flaw detector, wherein the slide block is arranged at the lower end of the slide rail, the support bar is arranged below the slide rail, the U-shaped frames are arranged on two sides of the upper end of the support bar, the fasteners are arranged in the frames of the U-shaped frames and used for clamping the bone implant, an angle adjusting mechanism is arranged at the lower end of the slide block, a clinging device is arranged at the lower end of the angle adjusting mechanism, and the ultrasonic flaw detector is arranged in the middle of the lower end of the angle adjusting mechanism;
hug closely the device including straight board, elastic plate, arc, rag, arc and through-hole, and the lower extreme of ultrasonic flaw detector is equipped with straight board, the both ends of straight board are equipped with the elastic plate, and the other end of elastic plate is equipped with the arc, the lower extreme of straight board and elastic plate is equipped with the rag, and the both ends department of rag is equipped with the arc, the through-hole has been seted up to the department in the middle of the terminal surface of rag, and the ultrasonic flaw detector is located through-hole department.
The middle of the supporting bar is provided with an inclined collecting device, and the moving range of the sliding block is the distance between two end points of the inclined collecting device;
the clinging device further comprises a spray head and a limiting waist hole, the spray head is arranged at the opening position of the two ends of the straight plate, the limiting waist hole is formed in the lower end of the arc-shaped plate, and the spray head is positioned in a gap between the arc-shaped strip and the straight plate;
the cleaning cloth is fixedly connected with the elastic plate at two ends, the cleaning cloth and the arc-shaped strip are integrally arranged, and one end of the arc-shaped strip is fixedly connected with the straight plate;
wherein the cleaning cloth and the arc-shaped strip contact the bone implant clamped by the fastener, and the surfaces of the cleaning cloth and the arc-shaped strip are provided with ultrasonic couplant;
wherein, the angle adjusting mechanism comprises a strip-shaped plate, a connector, a first linear driver, a universal ball, a limiting ring, a storage box, a hose, a second linear driver, a third linear driver, a first ring, a first spring, a second ring and a second spring, the lower end of the sliding block is provided with the first linear driver, the lower end of the first linear driver is provided with the connector, the lower end of the connector is provided with the strip-shaped plate, the lower end of the strip-shaped plate is provided with the universal ball, the universal ball is connected with an ultrasonic flaw detector, the side wall of the universal ball is sleeved with the limiting ring, one side of the lower end of the strip-shaped plate is provided with two second linear drivers, the other side of the lower end of the strip-shaped plate is provided with two third linear drivers, each telescopic end of the second linear driver is provided with the first ring and the second ring, and the lower end of the first ring is provided with the first spring, the upper end of the second circular ring is provided with a second spring, the telescopic end of each third linear driver is provided with another group of circular rings and springs, and the structure of the second linear driver is the same as that of the third linear driver;
the first circular ring and the second circular ring are in threaded connection with the telescopic end of the second linear driver, the telescopic end of the second linear driver penetrates through the limiting waist hole, and the arc-shaped plate is clamped between the first spring and the second spring;
the limiting ring is arranged in a circular truncated cone shape and limits the inclination angle of the ultrasonic flaw detector;
the ultrasonic coupling agent spraying device comprises a strip-shaped plate, a spray nozzle, a hose, an ultrasonic coupling agent and a spray head, wherein the lower end of the strip-shaped plate is provided with a storage box, the lower end of the storage box is provided with the hose, the hose is connected with the spray nozzle, and the ultrasonic coupling agent is stored in the storage box.
(III) advantageous effects
The technical scheme of the invention has the following advantages:
the invention provides a bone implant internal crack flaw detection device,
1. the elastic plate and the arc-shaped plate can be changed along with the arc surface of the bone implant to be detected, the elastic plate is bent upwards along with the elastic plate, the cleaning cloth and the arc-shaped strip are made to contact the outer surface of the bone implant to be detected, the ultrasonic couplant is coated on the outer surface of the bone implant to be detected, and the ultrasonic couplant is coated before detection by an ultrasonic flaw detector, so that the bone implant to be detected can be conveniently subjected to internal crack detection;
2. the spray head can realize the quantitative spraying of the ultrasonic coupling agent, and the waste caused by excessive ultrasonic coupling agent on the surfaces of the cleaning cloth and the arc-shaped strip is avoided;
3. spacing waist hole, second linear actuator, third linear actuator, spring and ring are mutually supported, can change the crooked degree of elastic plate, realize the crooked accurate control of elastic plate, ensure that rag and arc strip contact wait to detect the surface of bone implant.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a side cross-sectional view of the present invention;
FIG. 4 is an exploded view of the angle adjustment mechanism, the attachment device and the ultrasonic flaw detector of the present invention;
FIG. 5 is an exploded view of the angle adjustment mechanism of the present invention;
FIG. 6 is an enlarged view taken at A in FIG. 5 according to the present invention;
FIG. 7 is an exploded view of the applicator of the present invention;
FIG. 8 is a schematic view showing the moving direction of the slide and the angle adjustment direction of the ultrasonic flaw detector according to the present invention.
In the figure: 1. a slide rail; 2. an angle adjusting mechanism; 201. a strip plate; 202. a connector; 203. a first linear driver; 204. a universal ball; 205. a limiting ring; 206. a material storage box; 207. a hose; 208. a second linear actuator; 209. a third linear actuator; 210. a first circular ring; 211. a first spring; 212. a second circular ring; 213. a second spring; 3. a clinging device; 301. a straight plate; 302. a spray head; 303. an elastic plate; 304. an arc-shaped plate; 305. limiting waist holes; 306. a wipe; 307. an arc-shaped strip; 308. a through hole; 4. a slider; 5. a supporting strip; 6. a U-shaped frame; 7. a fastener; 8. an inclined collecting device; 9. an ultrasonic flaw detector.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The first embodiment is as follows:
as shown in fig. 1, 2, 3, 4, 7, and 8, an internal crack flaw detection device for a bone implant comprises a slide rail 1, a slider 4, a support bar 5, a U-shaped frame 6, a fastening piece 7, and an ultrasonic flaw detector 9, wherein the slider 4 is arranged at the lower end of the slide rail 1, the support bar 5 is arranged below the slide rail 1, the U-shaped frame 6 is arranged at two sides of the upper end of the support bar 5, the fastening piece 7 is arranged in the frame of the U-shaped frame 6, the bone implant is clamped by the fastening piece 7, an angle adjusting mechanism 2 is arranged at the lower end of the slider 4, a clinging device 3 is arranged at the lower end of the angle adjusting mechanism 2, and the ultrasonic flaw detector 9 is arranged in the middle of the lower end of the angle adjusting mechanism 2;
hug closely device 3 including straight board 301, elastic plate 303, arc 304, rag 306, arc 307 and through-hole 308, the lower extreme of ultrasonic flaw detector 9 is equipped with straight board 301, the both ends of straight board 301 are equipped with elastic plate 303, the other end of elastic plate 303 is equipped with arc 304, the lower extreme of straight board 301 and elastic plate 303 is equipped with rag 306, the both ends department of rag 306 is equipped with arc 307, through-hole 308 has been seted up to the department in the middle of the terminal surface of rag 306, ultrasonic flaw detector 9 is located through-hole 308 department.
The middle of the support bar 5 is provided with an inclined collection device 8, the moving range of the slide block 4 is the distance between two end points of the inclined collection device 8, two ends of a cleaning cloth 306 are fixedly connected with an elastic plate 303, the cleaning cloth 306 and an arc bar 307 are integrally arranged, one end of the arc bar 307 is fixedly connected with a straight plate 301, the cleaning cloth 306 and the arc bar 307 contact a bone implant clamped by a fastener 7, the surfaces of the cleaning cloth 306 and the arc bar 307 are provided with an ultrasonic coupling agent, when in use, the cleaning cloth 306 and the arc bar 307 contact the outer surface of the bone implant to be detected, the ultrasonic flaw detector 9 detects internal cracks just facing the outer surface detection point of the bone implant to be detected, the slide block 4 drives the ultrasonic flaw detector 9 to move, the ultrasonic flaw detector 9 moves along with the outer surface of the bone implant to be detected, because the outer surface of the bone implant to be detected has an arc surface, in the moving process of the ultrasonic flaw detector 9, the arc plate 304 and the elastic plate 303 change along with the cambered surface of the bone implant to be detected, after the elastic plate 303 is bent, because one end of the cleaning cloth 306 is connected with the elastic plate 303, the cleaning cloth 306 is stretched along with the arc plate, one end of the arc strip 307 is fixedly connected with the straight plate 301, so that the cleaning cloth 306 can be stretched, the ultrasonic couplant is arranged on the cleaning cloth 306 and the arc strip 307, the elastic plate 303 and the arc plate 304 can change along with the cambered surface of the bone implant to be detected, the elastic plate 303 is bent upwards along with the arc plate, the arc strip 306 and the arc strip 307 are enabled to be in contact with the outer surface of the cleaning cloth to be detected, the ultrasonic couplant is coated on the outer surface of the bone implant to be detected, the ultrasonic flaw detector 9 is coated before detection, and the bone implant to be detected can be conveniently detected to detect internal cracks.
Example two:
as shown in fig. 4 and 5, wherein the same or corresponding components as in the first embodiment are denoted by the same reference numerals as in the first embodiment, only the differences from the first embodiment will be described below for the sake of convenience. The difference lies in that the clinging device 3 further comprises a spray head 302 and a limit waist hole 305, the spray head 302 is arranged at the opening position of the two ends of the straight plate 301, the limit waist hole 305 is arranged at the lower end of the arc-shaped plate 304, and the spray head 302 is positioned at the gap between the arc-shaped strip 307 and the straight plate 301;
the two ends of the cleaning cloth 306 are fixedly connected with the elastic plate 303, the cleaning cloth 306 and the arc-shaped strip 307 are integrally arranged, one end of the arc-shaped strip 307 is fixedly connected with the straight plate 301, the cleaning cloth 306 and the arc-shaped strip 307 contact the bone implant clamped by the fastener 7, ultrasonic couplant is arranged on the surfaces of the cleaning cloth 306 and the arc-shaped strip 307, the spray head 302 can realize quantitative spraying of the ultrasonic couplant, and waste caused by excessive ultrasonic couplant on the surfaces of the cleaning cloth 306 and the arc-shaped strip 307 is avoided.
Example three:
as shown in fig. 1, 2, 3, 4, 5, 6 and 8, wherein the same or corresponding components as in the first embodiment are denoted by the same reference numerals as in the first embodiment, only the differences from the first embodiment will be described below for the sake of convenience. The difference lies in that the angle adjusting mechanism 2 comprises a strip-shaped plate 201, a connector 202, a first linear driver 203, a universal ball 204, a limit ring 205, a storage box 206, a hose 207, a second linear driver 208, a third linear driver 209, a first ring 210, a first spring 211, a second ring 212 and a second spring 213, the lower end of the slider 4 is provided with the first linear driver 203, the lower end of the first linear driver 203 is provided with the connector 202, the lower end of the connector 202 is provided with the strip-shaped plate 201, the lower end of the strip-shaped plate 201 is provided with the universal ball 204, the universal ball 204 is connected with the ultrasonic flaw detector 9, the side wall of the universal ball 204 is sleeved with the limit ring 205, one side of the lower end of the strip-shaped plate 201 is provided with two second linear drivers 208, the other side of the lower end of the strip-shaped plate 201 is provided with two third linear drivers 209, the telescopic end of each second linear driver 208 is provided with the first ring 210 and the second ring 212, the lower end of the first circular ring 210 is provided with a first spring 211, the upper end of the second circular ring 212 is provided with a second spring 213, the telescopic end of each third linear driver 209 is provided with another group of circular rings and springs, and the structure of the second linear driver 208 is the same as that of the third linear driver 209;
the first circular ring 210 and the second circular ring 212 are in threaded connection with the telescopic end of the second linear driver 208, the telescopic end of the second linear driver 208 penetrates through the limit waist hole 305, the arc-shaped plate 304 is clamped between the first spring 211 and the second spring 213, the limit ring 205 is in a circular truncated cone shape, the limit ring 205 limits the inclination angle of the ultrasonic flaw detector 9, the lower end of the strip-shaped plate 201 is provided with the storage box 206, the lower end of the storage box 206 is provided with the hose 207, the hose 207 is connected with the spray head 302, the ultrasonic coupling agent is stored in the storage box of the storage box 206, the limit waist hole 305, the second linear driver 208, the third linear driver 209, the springs and the circular rings are matched with each other, the bending degree of the elastic plate 303 can be changed, accurate control over bending of the elastic plate is achieved, and the cleaning cloth 306 and the arc-shaped strip 307 are ensured to contact with the outer surface of the bone implant to be detected.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, unless otherwise specified, "a plurality" means one or more; "plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides an inside crack of bone implant detection equipment that detects a flaw, includes slide rail (1), slider (4), support bar (5), U type frame (6), fastener (7) and ultrasonic flaw detector (9), the lower extreme of slide rail (1) is equipped with slider (4), and the below of slide rail (1) is equipped with support bar (5), the upper end both sides of support bar (5) are equipped with U type frame (6), and are equipped with fastener (7) in the frame of U type frame (6), fastener (7) centre gripping bone implant, its characterized in that: an angle adjusting mechanism (2) is arranged at the lower end of the sliding block (4), a clinging device (3) is arranged at the lower end of the angle adjusting mechanism (2), and an ultrasonic flaw detector (9) is arranged in the middle of the lower end of the angle adjusting mechanism (2);
hug closely device (3) including straight board (301), elastic plate (303), arc (304), rag (306), arc strip (307) and through-hole (308), and the lower extreme of ultrasonic flaw detector (9) is equipped with straight board (301), the both ends of straight board (301) are equipped with elastic plate (303), and the other end of elastic plate (303) is equipped with arc (304), the lower extreme of straight board (301) and elastic plate (303) is equipped with rag (306), and the both ends department of rag (306) is equipped with arc strip (307), through-hole (308) have been seted up to the department in the middle of the terminal surface of rag (306), and ultrasonic flaw detector (9) are located through-hole (308).
2. The apparatus for detecting crack detection inside bone implant according to claim 1, characterized in that: the middle of the supporting bar (5) is provided with an inclined collecting device (8), and the moving range of the sliding block (4) is the distance between two end points of the inclined collecting device (8).
3. The apparatus for detecting crack detection inside bone implant according to claim 1, characterized in that: hug closely device (3) and still include shower nozzle (302) and spacing waist hole (305), and the both ends trompil department of straight board (301) is equipped with shower nozzle (302), spacing waist hole (305) have been seted up to the lower extreme of arc (304), shower nozzle (302) are located gap department between arc (307) and straight board (301).
4. The apparatus for detecting cracks inside a bone implant according to claim 1 or 3, wherein: the two ends of the cleaning cloth (306) are fixedly connected with the elastic plate (303), the cleaning cloth (306) and the arc-shaped strip (307) are integrally arranged, and one end of the arc-shaped strip (307) is fixedly connected with the straight plate (301).
5. The apparatus for detecting cracks inside a bone implant according to claim 1 or 3, wherein: the cleaning cloth (306) and the arc-shaped strip (307) are contacted with the bone implant clamped by the fastener (7), and the surfaces of the cleaning cloth (306) and the arc-shaped strip (307) are provided with ultrasonic couplant.
6. The apparatus for crack detection inside a bone implant according to claim 3, wherein: the angle adjusting mechanism (2) comprises a strip-shaped plate (201), a connecting head (202), a first linear driver (203), a universal ball (204), a limiting ring (205), a storage box (206), a hose (207), a second linear driver (208), a third linear driver (209), a first circular ring (210), a first spring (211), a second circular ring (212) and a second spring (213), the first linear driver (203) is arranged at the lower end of a sliding block (4), the connecting head (202) is arranged at the lower end of the first linear driver (203), the strip-shaped plate (201) is arranged at the lower end of the connecting head (202), the universal ball (204) is arranged at the lower end of the strip-shaped plate (201), the universal ball (204) is connected with an ultrasonic flaw detector (9), the limiting ring (205) is sleeved on the side wall of the universal ball (204), two second linear drivers (208) are arranged on one side of the lower end of the strip-shaped plate (201), and the lower extreme opposite side of strip shaped plate (201) is equipped with two third straight line drivers (209), every the flexible end of second straight line driver (208) is equipped with first ring (210) and second ring (212), and the lower extreme of first ring (210) is equipped with first spring (211), the upper end of second ring (212) is equipped with second spring (213), every the flexible end of third straight line driver (209) is equipped with another group's ring and spring, the structure of second straight line driver (208) is the same with the structure of third straight line driver (209).
7. The apparatus for crack detection inside a bone implant according to claim 6, wherein: the first circular ring (210) and the second circular ring (212) are in threaded connection with the telescopic end of the second linear driver (208), the telescopic end of the second linear driver (208) penetrates through the limit waist hole (305), and the arc-shaped plate (304) is clamped between the first spring (211) and the second spring (213).
8. The apparatus for crack detection inside a bone implant according to claim 6, wherein: the limiting ring (205) is arranged in a round table shape, and the limiting ring (205) limits the inclination angle of the ultrasonic flaw detector (9).
9. The apparatus for crack detection inside a bone implant according to claim 6, wherein: the lower extreme of BAR (201) is equipped with storage case (206), and the lower extreme of storage case (206) is equipped with hose (207), hose (207) are connected with shower nozzle (302), the incasement of storage case (206) has the supersound couplant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111287653.9A CN113720915B (en) | 2021-11-02 | 2021-11-02 | Bone implant internal crack flaw detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111287653.9A CN113720915B (en) | 2021-11-02 | 2021-11-02 | Bone implant internal crack flaw detection equipment |
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| CN113720915A true CN113720915A (en) | 2021-11-30 |
| CN113720915B CN113720915B (en) | 2021-12-31 |
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| CN202111287653.9A Active CN113720915B (en) | 2021-11-02 | 2021-11-02 | Bone implant internal crack flaw detection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114216966A (en) * | 2021-12-15 | 2022-03-22 | 江苏省特种设备安全监督检验研究院 | Ultrasonic testing auxiliary device suitable for crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114216966A (en) * | 2021-12-15 | 2022-03-22 | 江苏省特种设备安全监督检验研究院 | Ultrasonic testing auxiliary device suitable for crane |
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| CN113720915B (en) | 2021-12-31 |
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