CN221822306U - Corrosion-resistant ceramic coating device of semiconductor wafer chuck - Google Patents
Corrosion-resistant ceramic coating device of semiconductor wafer chuck Download PDFInfo
- Publication number
- CN221822306U CN221822306U CN202420050427.1U CN202420050427U CN221822306U CN 221822306 U CN221822306 U CN 221822306U CN 202420050427 U CN202420050427 U CN 202420050427U CN 221822306 U CN221822306 U CN 221822306U
- Authority
- CN
- China
- Prior art keywords
- coating
- resistant ceramic
- ceramic coating
- semiconductor wafer
- wafer chuck
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
本实用新型公开了一种半导体晶圆卡盘的耐腐蚀陶瓷镀层装置,具体涉及半导体晶圆卡盘生产技术领域,包括用于支撑的底座,所述底座上设置有导料镀层组件,所述导料镀层组件包括设置在底座上用于镀层的耐腐蚀陶瓷镀层室,所述耐腐蚀陶瓷镀层室的一侧设置有位置可调的支撑座。本实用新型通过设置导料镀层组件,防护箱能够通过限位杆的限位沿着限位杆与防护箱连接处的轴心点旋转,对防护箱的角度进行调节,从而调节了工件在进行镀层时的角度,通过第三电机驱动L板旋转,从而使得工件在进行镀层时再次进行旋转,从而实现对工件进行镀层时多角度调节的功能,以提高装置在进行镀层时的便捷性和多样性,也提高镀层效果。
The utility model discloses a corrosion-resistant ceramic coating device for a semiconductor wafer chuck, and specifically relates to the technical field of semiconductor wafer chuck production, including a base for support, on which a material guiding coating assembly is arranged, and the material guiding coating assembly includes a corrosion-resistant ceramic coating chamber arranged on the base for coating, and one side of the corrosion-resistant ceramic coating chamber is provided with a position-adjustable support seat. By arranging the material guiding coating assembly, the utility model enables the protective box to rotate along the axis point of the connection between the limiting rod and the protective box through the limiting of the limiting rod, and adjusts the angle of the protective box, thereby adjusting the angle of the workpiece during coating, and drives the L-plate to rotate through the third motor, so that the workpiece rotates again during coating, thereby realizing the function of multi-angle adjustment when coating the workpiece, so as to improve the convenience and diversity of the device during coating, and also improve the coating effect.
Description
技术领域Technical Field
本实用新型涉及半导体晶圆卡盘生产技术领域,更具体地说,本实用新型涉及一种半导体晶圆卡盘的耐腐蚀陶瓷镀层装置。The utility model relates to the technical field of semiconductor wafer chuck production, and more specifically to a corrosion-resistant ceramic coating device for a semiconductor wafer chuck.
背景技术Background Art
半导体晶圆卡盘的耐腐蚀陶瓷镀层装置是一种用于对半导体晶圆卡盘进行表面处理的设备。晶圆卡盘是用于固定半导体晶圆的装置,其表面需要具备良好的耐腐蚀性能,以保证在制造过程中不受化学物质的侵蚀。The corrosion-resistant ceramic coating device for semiconductor wafer chuck is a device used for surface treatment of semiconductor wafer chuck. Wafer chuck is a device used to fix semiconductor wafers, and its surface needs to have good corrosion resistance to ensure that it is not corroded by chemical substances during the manufacturing process.
耐腐蚀陶瓷镀层装置通过物理或化学方法,在晶圆卡盘的表面形成一层耐腐蚀的陶瓷镀层。这层陶瓷镀层可以提供良好的耐腐蚀性能,使晶圆卡盘能够在化学处理过程中长时间保持稳定的性能,同时陶瓷镀层还具备优异的表面平整度和光滑度,有助于保护晶圆表面不受划伤和污染。The corrosion-resistant ceramic coating device forms a corrosion-resistant ceramic coating on the surface of the wafer chuck through physical or chemical methods. This ceramic coating can provide good corrosion resistance, allowing the wafer chuck to maintain stable performance for a long time during chemical treatment. At the same time, the ceramic coating also has excellent surface flatness and smoothness, which helps to protect the wafer surface from scratches and contamination.
其中,经检索发现,专利申请号CN202222536481.0的专利公开了一种电镀洗边装置,包括洗边腔室、承载单元、喷嘴单元及喷嘴转动单元,喷嘴单元包括喷嘴、喷嘴固定杆及供液管,喷嘴转动单元带动喷嘴固定杆往复转动,以使喷嘴在第一偏向角与第二偏向角之间转换;Among them, it was found through searching that the patent application number CN202222536481.0 discloses an electroplating edge washing device, including an edge washing chamber, a carrying unit, a nozzle unit and a nozzle rotating unit, the nozzle unit includes a nozzle, a nozzle fixing rod and a liquid supply pipe, and the nozzle rotating unit drives the nozzle fixing rod to reciprocate so that the nozzle is switched between a first deflection angle and a second deflection angle;
该结构在使用时,通过位于第一偏向角时,晶圆逆时针旋转,位于第二偏向角时,晶圆顺时针旋转,能完全除去晶圆边缘缺口处镀层金属,提高晶圆良率,方便对现有设备直接改造,节约设备成本,但是在对半导体晶圆卡盘进行腐蚀陶瓷镀层时,不易于对卡盘进行导料,同时再进行镀层卡盘外侧不易于调节,从而造成镀层效果不理想。When the structure is in use, the wafer rotates counterclockwise when it is at the first deflection angle, and rotates clockwise when it is at the second deflection angle. This can completely remove the metal coating at the notch on the edge of the wafer, improve the wafer yield, facilitate direct modification of existing equipment, and save equipment costs. However, when etching the ceramic coating on the semiconductor wafer chuck, it is not easy to guide the chuck, and it is not easy to adjust the outside of the coating chuck, which results in an unsatisfactory coating effect.
实用新型内容Utility Model Content
为了克服现有技术的上述缺陷,本实用新型提供一种半导体晶圆卡盘的耐腐蚀陶瓷镀层装置,旨在解决上述背景技术中提出的问题。In order to overcome the above-mentioned defects of the prior art, the utility model provides a corrosion-resistant ceramic coating device for a semiconductor wafer chuck, aiming to solve the problems raised in the above-mentioned background technology.
本实用新型是这样实现的,本实用新型提供如下技术方案:一种半导体晶圆卡盘的耐腐蚀陶瓷镀层装置,包括用于支撑的底座,所述底座上设置有导料镀层组件;The utility model is implemented in this way. The utility model provides the following technical solutions: a corrosion-resistant ceramic coating device for a semiconductor wafer chuck, comprising a base for support, on which a material guide coating component is arranged;
所述导料镀层组件包括设置在底座上用于镀层的耐腐蚀陶瓷镀层室,所述耐腐蚀陶瓷镀层室的一侧设置有位置可调的支撑座,所述支撑座上设置有角度可调的支撑臂;The material guiding coating assembly comprises a corrosion-resistant ceramic coating chamber for coating arranged on a base, a position-adjustable support seat is arranged on one side of the corrosion-resistant ceramic coating chamber, and an angle-adjustable support arm is arranged on the support seat;
所述支撑臂的一端活动连接有轴销座,所述轴销座的底部设置有防护箱;One end of the support arm is movably connected to a shaft pin seat, and a protection box is provided at the bottom of the shaft pin seat;
所述防护箱的表面一侧设置有角度可调的L板,所述L板的顶部开设有两个用于对工件进行限位的卡槽,两个所述卡槽的表面一侧均设置有安装在L板上用于支撑的支撑板,且各所述支撑板上均设置有位移传感器,所述防护箱的两侧均设置有限位杆,所述限位杆的一端延伸至支撑座上并与支撑座活动连接,所述限位杆的端部且位于防护箱内设置有用于支撑的轴销架,所述轴销架与防护箱可拆卸连接;An angle-adjustable L-plate is provided on one side of the surface of the protection box, and two slots for limiting the workpiece are provided on the top of the L-plate, and support plates installed on the L-plate for support are provided on one side of the surface of the two slots, and displacement sensors are provided on each of the support plates, and limiting rods are provided on both sides of the protection box, one end of the limiting rod extends to the support seat and is movably connected to the support seat, and an axle pin bracket for support is provided at the end of the limiting rod and located in the protection box, and the axle pin bracket is detachably connected to the protection box;
可以看出,上述技术方案中,支撑臂旋转从而使得防护箱能够通过限位杆的限位沿着限位杆与防护箱连接处的轴心点旋转,对防护箱的角度进行调节,从而调节了工件在进行镀层时的角度,并且通过第三电机驱动L板旋转,从而使得工件在进行镀层时再次进行旋转,从而实现对工件进行镀层时多角度调节的功能,以提高装置在进行镀层时的便捷性和多样性,也提高镀层效果It can be seen that in the above technical solution, the support arm rotates so that the protective box can rotate along the axis point of the connection between the limit rod and the protective box through the limit of the limit rod, so as to adjust the angle of the protective box, thereby adjusting the angle of the workpiece during coating, and the L-plate is driven to rotate by the third motor, so that the workpiece is rotated again during coating, thereby realizing the function of multi-angle adjustment when coating the workpiece, so as to improve the convenience and diversity of the device during coating, and also improve the coating effect.
可选的,在一种可能的实施方式中,所述支撑座上设置有用于驱动支撑臂旋转的第一电机,所述支撑座的底部两侧均设置有滑轮,两个所述滑轮的底部均滑动连接有安装在底座上的滑杆,两个所述滑杆之间设置有安装在底座上的第二电机,所述第二电机的输出端设置有与支撑座螺纹连接的丝杆,所述防护箱的内部设置有用于驱动L板旋转的第三电机;Optionally, in a possible implementation, a first motor for driving the support arm to rotate is provided on the support seat, pulleys are provided on both sides of the bottom of the support seat, the bottoms of the two pulleys are slidably connected to slide bars installed on the base, a second motor installed on the base is provided between the two slide bars, a screw threadedly connected to the support seat is provided at the output end of the second motor, and a third motor for driving the L plate to rotate is provided inside the protective box;
本实用新型的技术效果和优点:Technical effects and advantages of the utility model:
通过设置导料镀层组件,与现有技术相比,整体设计简单,结构合理,通过各个结构的相应配合使用,支撑臂旋转从而使得防护箱能够通过限位杆的限位沿着限位杆与防护箱连接处的轴心点旋转,对防护箱的角度进行调节,从而调节了工件在进行镀层时的角度;By setting up the material guiding plating component, compared with the prior art, the overall design is simple and the structure is reasonable. Through the corresponding coordinated use of various structures, the support arm rotates so that the protection box can be limited by the limit rod and the axis point of the connection between the limit rod and the protection box to adjust the angle of the protection box, thereby adjusting the angle of the workpiece during plating;
并且通过第三电机驱动L板旋转,从而使得工件在进行镀层时再次进行旋转,从而实现对工件进行镀层时多角度调节的功能,以提高装置在进行镀层时的便捷性和多样性,也提高镀层效果;The L plate is driven to rotate by the third motor, so that the workpiece is rotated again during the coating, thereby realizing the function of multi-angle adjustment during the coating of the workpiece, so as to improve the convenience and diversity of the device during the coating, and also improve the coating effect;
通过第二电机驱动丝杆旋转驱动支撑座通过滑轮沿着滑杆的导向在底座上位移,将工件输送至耐腐蚀陶瓷镀层室内进行耐腐蚀陶瓷镀层,提高导料时的便捷性。The second motor drives the screw rod to rotate and drive the support seat to move on the base along the guidance of the slide rod through the pulley, and the workpiece is transported to the corrosion-resistant ceramic coating chamber for corrosion-resistant ceramic coating, thereby improving the convenience of guiding materials.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为了更清楚地说明本公开中的技术方案,下面将对本公开一些实施例中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施例的附图,对于本领域普通技术人员来讲,还可以根据这些附图获得其他的附图。此外,以下描述中的附图可以视作示意图,并非对本公开实施例所涉及的产品的实际尺寸、方法的实际流程、信号的实际时序等的限制。In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the products involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.
图1为本实用新型整体结构主视图。Fig. 1 is a front view of the overall structure of the utility model.
图2为本实用新型导料镀层组件的侧视图。FIG. 2 is a side view of the material guide coating assembly of the present invention.
图3为本实用新型L板安装在防护箱侧面的主视图。FIG3 is a front view of the utility model L-plate installed on the side of the protection box.
图4为本实用新型导料镀层组件的主视图。FIG. 4 is a front view of the material guide coating assembly of the present invention.
附图标记为:1、底座;2、耐腐蚀陶瓷镀层室;3、支撑座;4、支撑臂;5、轴销座;6、限位杆;7、防护箱;8、轴销架;9、L板;10、卡槽;11、支撑板;12、位移传感器;13、第一电机;14、滑轮;15、滑杆;16、第二电机;17、丝杆;18、第三电机。The accompanying drawings are marked as follows: 1. base; 2. corrosion-resistant ceramic coating chamber; 3. support seat; 4. support arm; 5. axle pin seat; 6. limit rod; 7. protection box; 8. axle pin frame; 9. L-plate; 10. slot; 11. support plate; 12. displacement sensor; 13. first motor; 14. pulley; 15. slide rod; 16. second motor; 17. screw rod; 18. third motor.
具体实施方式DETAILED DESCRIPTION
下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本实用新型一部分实施例,而不是全部的实施例。基于本实用新型中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本实用新型保护的范围。The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
如附图1-4所示的一种半导体晶圆卡盘的耐腐蚀陶瓷镀层装置,通过底座1上设置的导料镀层组件,通过防护箱7能够通过限位杆6的限位沿着限位杆6与防护箱7连接处的轴心点旋转,对防护箱7的角度进行调节,从而调节了工件在进行镀层时的角度L板9旋转,从而使得工件在进行镀层时再次进行旋转,从而实现对工件进行镀层时多角度调节的功能,以提高装置在进行镀层时的便捷性和多样性,也提高镀层效果,且组件的具体结构设置如下;As shown in Figures 1-4, a corrosion-resistant ceramic coating device for a semiconductor wafer chuck has a material guide coating component arranged on a base 1. Through the protection box 7, the protection box 7 can be limited by the limit rod 6 and rotated along the axis point of the connection between the limit rod 6 and the protection box 7 to adjust the angle of the protection box 7, thereby adjusting the angle of the workpiece during coating. The L plate 9 rotates, so that the workpiece is rotated again during coating, thereby realizing the function of multi-angle adjustment when coating the workpiece, so as to improve the convenience and diversity of the device during coating, and also improve the coating effect, and the specific structural arrangement of the component is as follows;
导料镀层组件包括设置在底座1上用于镀层的耐腐蚀陶瓷镀层室2,耐腐蚀陶瓷镀层室2的一侧设置有位置可调的支撑座3,支撑座3上设置有角度可调的支撑臂4;The material guiding coating assembly comprises a corrosion-resistant ceramic coating chamber 2 for coating arranged on a base 1, a position-adjustable support seat 3 is arranged on one side of the corrosion-resistant ceramic coating chamber 2, and an angle-adjustable support arm 4 is arranged on the support seat 3;
支撑臂4的一端活动连接有轴销座5,轴销座5的底部设置有防护箱7;One end of the support arm 4 is movably connected to a shaft pin seat 5, and a protection box 7 is provided at the bottom of the shaft pin seat 5;
防护箱7的表面一侧设置有角度可调的L板9,L板9的顶部开设有两个用于对工件进行限位的卡槽10,两个卡槽10的表面一侧均设置有安装在L板9上用于支撑的支撑板11,且各支撑板11上均设置有位移传感器12,防护箱7的两侧均设置有限位杆6,限位杆6的一端延伸至支撑座3上并与支撑座3活动连接,限位杆6的端部且位于防护箱7内设置有用于支撑的轴销架8,轴销架8与防护箱7可拆卸连接;An angle-adjustable L-plate 9 is provided on one side of the surface of the protection box 7, and two slots 10 for limiting the workpiece are provided on the top of the L-plate 9. Support plates 11 installed on the L-plate 9 for support are provided on one side of the surface of the two slots 10, and displacement sensors 12 are provided on each support plate 11. Limit rods 6 are provided on both sides of the protection box 7, and one end of the limit rod 6 extends to the support seat 3 and is movably connected to the support seat 3. An axle pin bracket 8 for support is provided at the end of the limit rod 6 and is located in the protection box 7, and the axle pin bracket 8 is detachably connected to the protection box 7;
支撑座3上设置有用于驱动支撑臂4旋转的第一电机13,支撑座3的底部两侧均设置有滑轮14,两个滑轮14的底部均滑动连接有安装在底座1上的滑杆15,两个滑杆15之间设置有安装在底座1上的第二电机16,第二电机16的输出端设置有与支撑座3螺纹连接的丝杆17,防护箱7的内部设置有用于驱动L板9旋转的第三电机18。A first motor 13 for driving the support arm 4 to rotate is provided on the support seat 3, pulleys 14 are provided on both sides of the bottom of the support seat 3, the bottoms of the two pulleys 14 are slidably connected with slide rods 15 installed on the base 1, a second motor 16 installed on the base 1 is provided between the two slide rods 15, and a screw rod 17 threadedly connected to the support seat 3 is provided at the output end of the second motor 16, and a third motor 18 for driving the L plate 9 to rotate is provided inside the protective box 7.
根据上述结构在使用时,工作人员将装置安装在指定位置处,在对工件(半导体晶圆卡盘)进行镀层时,将工件放置在L板9上,通过卡槽10对L板9进行定位,之后通过第二电机16驱动丝杆17旋转驱动支撑座3通过滑轮14沿着滑杆15的导向在底座1上位移,将工件输送至耐腐蚀陶瓷镀层室2内进行耐腐蚀陶瓷镀层;According to the above structure, when in use, the staff installs the device at a designated position, and when coating the workpiece (semiconductor wafer chuck), the workpiece is placed on the L plate 9, and the L plate 9 is positioned by the card slot 10, and then the second motor 16 drives the screw rod 17 to rotate and drive the support seat 3 to move on the base 1 along the guide of the slide rod 15 through the pulley 14, and the workpiece is transported to the corrosion-resistant ceramic coating chamber 2 for corrosion-resistant ceramic coating;
同时在进行镀层时,通过第一电机13驱动支撑臂4旋转,支撑臂4旋转从而使得防护箱7能够通过限位杆6的限位沿着限位杆6与防护箱7连接处的轴心点旋转,对防护箱7的角度进行调节,从而调节了工件在进行镀层时的角度;At the same time, when the coating is being carried out, the support arm 4 is driven to rotate by the first motor 13. The support arm 4 rotates so that the protection box 7 can be limited by the limit rod 6 and rotate along the axis point of the connection between the limit rod 6 and the protection box 7, so as to adjust the angle of the protection box 7, thereby adjusting the angle of the workpiece during the coating;
并且通过第三电机18驱动L板9旋转,从而使得工件在进行镀层时再次进行旋转,从而实现对工件进行镀层时多角度调节的功能,以提高装置在进行镀层时的便捷性和多样性,也提高镀层效果。And the L plate 9 is driven to rotate by the third motor 18, so that the workpiece is rotated again during the coating, thereby realizing the function of multi-angle adjustment when the workpiece is coated, so as to improve the convenience and diversity of the device during coating, and also improve the coating effect.
区别于现有技术的情况,本申请公开了一种半导体晶圆卡盘的耐腐蚀陶瓷镀层装置,通过防护箱7能够通过限位杆6的限位沿着限位杆6与防护箱7连接处的轴心点旋转,对防护箱7的角度进行调节,从而调节了工件在进行镀层时的角度L板9旋转,从而使得工件在进行镀层时再次进行旋转,从而实现对工件进行镀层时多角度调节的功能,以提高装置在进行镀层时的便捷性和多样性,也提高镀层效果。Different from the prior art, the present application discloses a corrosion-resistant ceramic coating device for a semiconductor wafer chuck, in which the protective box 7 can be rotated along the axis point of the connection between the limit rod 6 and the protective box 7 through the limit of the limit rod 6, and the angle of the protective box 7 is adjusted, thereby adjusting the angle of the workpiece during coating. The L plate 9 rotates, so that the workpiece is rotated again during coating, thereby realizing the function of multi-angle adjustment when coating the workpiece, so as to improve the convenience and diversity of the device during coating, and also improve the coating effect.
以上仅为本实用新型的优选实施例而已,并不用于限制本实用新型,凡在本实用新型的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本实用新型的保护范围之内。The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202420050427.1U CN221822306U (en) | 2024-01-09 | 2024-01-09 | Corrosion-resistant ceramic coating device of semiconductor wafer chuck |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202420050427.1U CN221822306U (en) | 2024-01-09 | 2024-01-09 | Corrosion-resistant ceramic coating device of semiconductor wafer chuck |
Publications (1)
Publication Number | Publication Date |
---|---|
CN221822306U true CN221822306U (en) | 2024-10-11 |
Family
ID=92964443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202420050427.1U Active CN221822306U (en) | 2024-01-09 | 2024-01-09 | Corrosion-resistant ceramic coating device of semiconductor wafer chuck |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN221822306U (en) |
-
2024
- 2024-01-09 CN CN202420050427.1U patent/CN221822306U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2022077614A1 (en) | Method for improving surface evenness of electroplated platinum, and polishing device used by method | |
CN108177077A (en) | A kind of internally polisher of full-automatic reduced pipe | |
CN211758577U (en) | Bench drilling machine | |
CN218657454U (en) | Cage boat assembly welding machine table | |
CN221822306U (en) | Corrosion-resistant ceramic coating device of semiconductor wafer chuck | |
CN105789104A (en) | Production system for preparing battery piece | |
CN118385865B (en) | Quartz boat assembly forming and welding tool | |
CN211134717U (en) | A spraying line with dust removal device | |
CN207982471U (en) | A kind of Manual tapping machine | |
CN218524830U (en) | Quartz wafer test bench | |
CN206564241U (en) | A diode steering positioning device | |
CN114918846A (en) | Perovskite solar cell test fixture | |
CN221833952U (en) | A substrate pretreatment device for copper alloy 3D printing | |
CN108044468B (en) | A device for rapid prototyping of graphite light rods | |
CN111334768A (en) | Vertical wafer loading frame suitable for magnetron sputtering coating | |
CN113044571A (en) | Sheet immersion processing device and working method thereof | |
CN215628128U (en) | Feeding structure for quenching of hexagonal steel bars | |
CN221733785U (en) | A plate spraying fixing device | |
CN222712097U (en) | A testing rack for parts | |
CN112198231B (en) | Self-adaptive probe clamping device | |
CN220516169U (en) | Triaxial angle adjustable machine tool clamp | |
CN206527615U (en) | A kind of polishing device and the sanding machine for being provided with the polishing device | |
CN222404732U (en) | A high-precision optical axis grinding device | |
CN112974575B (en) | Device and method for coating and processing surface of slender bar or pipe | |
CN215004608U (en) | Forming device for adhesive pull-out test pieces |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |