CN112240852A - Experimental mold for testing performance of silicone adhesive - Google Patents
Experimental mold for testing performance of silicone adhesive Download PDFInfo
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- CN112240852A CN112240852A CN202011446296.1A CN202011446296A CN112240852A CN 112240852 A CN112240852 A CN 112240852A CN 202011446296 A CN202011446296 A CN 202011446296A CN 112240852 A CN112240852 A CN 112240852A
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- silicone adhesive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an experimental mould for testing performance of silicone adhesive, and relates to the technical field of silicone adhesive. The die comprises a base, a lower die holder and an upper die holder, wherein the upper surface of the base is fixedly connected with the lower surface of the lower die holder, and the lower die holder is in sliding fit with the upper die holder; the device comprises a movable die, a fixed die and a heating coil, wherein the movable die is arranged on the lower surface of the fixed die, the upper die seat is arranged on the lower die seat, the lower die seat is arranged on the upper surface of the fixed die, the movable die is arranged on the lower die seat, the lower die seat is arranged on the upper surface of the fixed die, the upper die seat and the lower die seat are arranged on the lower die seat, the movable die is arranged on the lower die seat, the lower die seat is arranged on the upper surface of the fixed die, the lower die seat is arranged on the lower die seat, the upper die seat and the lower die seat slide up and down or left and right, and the movable die is arranged on the lower die seat.
Description
Technical Field
The invention belongs to the technical field of silicone adhesive testing, and particularly relates to an experimental mold for testing the performance of silicone adhesive.
Background
Silicone gel is a paste-like material that cures to a tough, rubbery solid upon exposure to air moisture. Mainly comprises a deacetylated type, a dealcoholized type, a deaminated type and a depropanated type. Silicone glue is commonly referred to as glass glue because it is commonly used for bonding and sealing glass. One-component silicone glass cement is a paste-like material that cures to a tough, rubbery solid upon exposure to air moisture. During the production of silicone adhesives, the strength of the silicone adhesive is often tested in order to test its properties.
However, the existing silicone adhesive can only be used for testing one influence factor of tension, shearing force or temperature in one set of mould during performance test, the testing efficiency is low, and one set of mould is only suitable for testing one set of experimental model, so that the comparison test is inconvenient.
Disclosure of Invention
The invention aims to provide an experimental mould for testing the performance of silicone adhesive, which solves the problems that the existing silicone adhesive can only test one influencing factor of tension, shearing force or temperature in one set of mould during performance test, the test efficiency is low, and one set of mould is only suitable for testing one set of experimental model and is inconvenient for comparison test.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an experimental mould for testing the performance of silicone adhesive, which comprises a base, a lower die holder and an upper die holder, wherein the upper surface of the base is fixedly connected with the lower surface of the lower die holder, the lower die holder is in sliding fit with the upper die holder, a fixed die is arranged on the upper surface of the lower die holder, a heating coil is arranged in the fixed die, the upper surface of the upper die holder is fixedly connected with a connecting shaft, the upper surface of the upper die holder is provided with a plurality of sliding grooves, the sliding grooves are positioned at two sides of the connecting shaft, the sliding grooves are in sliding connection with movable blocks, the lower ends of the movable blocks are fixedly connected with movable dies, the movable dies are positioned at the inner side of the upper die holder, the lower surface of the movable dies is provided with lower clamping grooves, the bottom of the lower clamping grooves is provided with, the fixed block is in threaded connection with a positioning screw, and the tail end of the positioning screw is rotationally connected with the movable block; in the structure, when the silicone adhesive is tested, the relative position of the movable block in the sliding groove can be adjusted by rotating the positioning screw, so that the relative distance between the movable dies can be adjusted, the movable dies can clamp different experimental models, the shapes of the experimental models are matched with the upper clamping groove and the lower clamping groove, so that the experimental models can be clamped in the upper clamping groove, then the lower surface of the experimental model and the upper surface of the fixed die can be coated with the silicone adhesive, finally the upper die base and the lower die base slide up and down or left and right to test the strength of the silicone adhesive under the action of longitudinal tension and transverse shearing force, and simultaneously the silicone adhesive can be heated by the heating coil to test the strength of the silicone adhesive under different temperatures, in addition, because the movable dies can fix the experimental models with different sizes, the contact areas of different active models and the fixed die are different, the device can therefore also be used to test the effect of different silicone adhesive contact areas on the strength of the silicone adhesive.
Preferably, the base is provided with a plurality of mounting holes, so that the base can be fixedly connected to other carriers conveniently.
Preferably, the side surface of the connecting shaft is provided with a key groove, and the key groove is internally provided with a connecting hole, so that the upper die base can be conveniently connected with other equipment for providing pulling force.
Preferably, limiting plates are fixedly connected to two sides of the upper die holder, limiting grooves are formed in two sides of the inner surface of the lower die holder, and the limiting plates are in sliding fit with the limiting grooves; in the structure, the limiting plate is matched with the limiting groove to prevent the upper die base and the lower die base from being separated when the shearing strength is tested.
Preferably, lifting grooves are further formed in the two side surfaces of the upper die base, the lifting grooves are waist-shaped, limiting screws are connected to the two side surfaces of the lower die base in a threaded mode, and one ends of the limiting screws are located in the lifting grooves; in the structure, when the transverse shearing strength does not need to be tested, the tail end of the limiting screw can be extended into the lifting groove, so that the upper die base and the lower die base can only slide up and down.
Preferably, the diameter of the external thread of the limit screw is slightly smaller than that of the lifting groove, so that the upper die base and the lower die base can conveniently slide up and down, and friction is avoided.
Preferably, a switch is mounted on one surface of the lower die holder, and the switch is electrically connected with the heating coil, so that the output power of the heating coil can be conveniently controlled.
The invention has the following beneficial effects:
the device comprises a movable die, a fixed die and a heating coil, wherein the movable die is arranged on the lower surface of the fixed die, the upper die seat is arranged on the lower die seat, the lower die seat is arranged on the upper surface of the fixed die, the movable die is arranged on the lower die seat, the lower die seat is arranged on the upper surface of the fixed die, the upper die seat and the lower die seat are arranged on the lower die seat, the movable die is arranged on the lower die seat, the lower die seat is arranged on the upper surface of the fixed die, the lower die seat is arranged on the lower die seat, the upper die seat and the lower die seat slide up and down or left and right, and the movable die is arranged on the lower die seat.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic three-dimensional structure diagram of an experimental mold for testing the performance of silicone adhesive according to the present invention;
FIG. 2 is a top view of an experimental mold for testing the performance of silicone adhesive according to the present invention;
FIG. 3 is a front view of an experimental mold for testing the performance of silicone adhesive according to the present invention;
FIG. 4 is a three-dimensional structural diagram of an upper mold of an experimental mold for testing the performance of silicone adhesive according to the present invention;
fig. 5 is a cross-sectional view taken along the plane a-a in fig. 2.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a base; 101. mounting holes; 2. a lower die holder; 201. a limiting groove; 3. an upper die holder; 301. a chute; 302. a lifting groove; 4. a fixed block; 5. a set screw; 6. a movable block; 7. a connecting shaft; 701. a keyway; 702. connecting holes; 8. a limiting plate; 9. a limit screw; 10. a switch; 11. moving the mold; 1101. an upper clamping groove; 1102. a lower clamping groove; 12. a fixed mold; 13. and a heating coil.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper," "middle," "outer," "inner," "around," and the positional relationships are used merely for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-5, the invention is an experimental mold for testing performance of silicone adhesive, comprising a base 1, a lower die holder 2 and an upper die holder 3, wherein the upper surface of the base 1 is fixedly connected with the lower surface of the lower die holder 2, the lower die holder 2 is in sliding fit with the upper die holder 3, the upper surface of the lower die holder 2 is provided with a fixed die 12, the fixed die 12 is internally provided with a heating coil 13, the upper surface of the upper die holder 3 is fixedly connected with a connecting shaft 7, the upper surface of the upper die holder 3 is provided with a plurality of sliding grooves 301, the sliding grooves 301 are positioned at two sides of the connecting shaft 7, the sliding grooves 301 are slidably connected with movable blocks 6, the lower ends of the movable blocks 6 are fixedly connected with movable dies 11, the movable dies 11 are positioned at the inner side of the upper die holder 3, the lower surface of the movable dies 11 is provided with lower clamping grooves, the fixed block 4 is positioned on the outer side of the movable block 6, the fixed block 4 is in threaded connection with a positioning screw 5, and the tail end of the positioning screw 5 is rotatably connected with the movable block 6; in the structure, when the silicone adhesive test is carried out, the relative position of the movable block 6 in the sliding groove 301 can be adjusted by rotating the positioning screw 5, so as to adjust the relative distance between the movable dies 11, the movable dies 11 can clamp different experimental models, meanwhile, the shapes of the experimental models are matched with the upper clamping groove 1101 and the lower clamping groove 1102, so that the experimental models can be clamped in the upper clamping groove 1101, then the silicone adhesive can be coated on the lower surface of the experimental model and the upper surface of the fixed die 12, finally, the upper die base 3 and the lower die base 2 slide up and down or left and right, so as to test the strength of the silicone adhesive under the action of longitudinal tensile force and transverse shearing force, meanwhile, the silicone adhesive can be heated by the heating coil 13, the strength of the silicone adhesive under different temperatures can be tested, in addition, because the movable dies 11 can fix the experimental models with different sizes, the contact areas of different active models and the fixed die 12 are, the device can therefore also be used to test the effect of different silicone adhesive contact areas on the strength of the silicone adhesive.
Furthermore, a plurality of mounting holes 101 are formed in the base 1, so that the base 1 can be conveniently and fixedly connected to other carriers.
Furthermore, a key groove 701 is formed in the peripheral side surface of the connecting shaft 7, and a connecting hole 702 is formed in the key groove 701, so that the upper die holder 3 can be conveniently connected with other devices providing pulling force.
Furthermore, limiting plates 8 are fixedly connected to two sides of the upper die base 3, limiting grooves 201 are formed in two sides of the inner surface of the lower die base 2, and the limiting plates 8 are in sliding fit with the limiting grooves 201; in the structure, the limiting plate 8 is matched with the limiting groove 201 to prevent the upper die holder 3 from being separated from the lower die holder 2 when the shearing strength is tested.
Furthermore, lifting grooves 302 are further formed in the surfaces of the two sides of the upper die base 3, the lifting grooves 302 are waist-shaped, the surfaces of the two sides of the lower die base 2 are in threaded connection with limit screws 9, and one ends of the limit screws 9 are located in the lifting grooves 302; in the structure, when the transverse shearing strength does not need to be tested, the tail end of the limit screw 9 can be extended into the lifting groove 302, so that the upper die base 3 and the lower die base 2 can only slide up and down.
Further, the diameter of the external thread of the limit screw 9 is slightly smaller than that of the lifting groove 302, so that the upper die base 3 and the lower die base 2 can slide up and down conveniently, and friction is avoided.
Further, a switch 10 is installed on one surface of the lower die holder 2, and the switch 10 is electrically connected with the heating coil 13, so that the output power of the heating coil 13 can be conveniently controlled.
Referring to fig. 1-5, the present invention is an experimental mold for testing performance of silicone adhesive, and the usage method thereof is as follows:
when the silicone adhesive is tested, the relative position of the movable block 6 in the sliding groove 301 can be adjusted by rotating the positioning screw 5, so that the relative distance between the movable dies 11 is adjusted, different experimental models can be clamped by the movable dies 11, meanwhile, the shapes of the experimental models are matched with the upper clamping groove 1101 and the lower clamping groove 1102, so that the experimental models can be clamped in the upper clamping groove 1101, then the lower surface of the experimental model and the upper surface of the fixed die 12 can be coated with the silicone adhesive, finally, the upper die base 3 and the lower die base 2 can slide up and down or left and right, so that the strength of the silicone adhesive under the action of longitudinal tensile force and transverse shearing force can be tested, meanwhile, the silicone adhesive can be heated by the heating coil 13, the strength of the silicone adhesive under different temperatures can be tested, in addition, because the movable dies 11 can fix the experimental models with different sizes, the contact areas of different active models and the fixed die, the device can therefore also be used to test the effect of different silicone adhesive contact areas on the strength of the silicone adhesive.
It should be noted that, after the limiting plate 8 is matched with the limiting groove 201, the upper die holder 3 can be prevented from being separated from the lower die holder 2 during the shear strength test, and in addition, when the transverse shear strength test is not required, the tail end of the limiting screw 9 can be extended into the lifting groove 302, so that the upper die holder 3 and the lower die holder 2 can only slide up and down.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides an experimental mold is used in test of silicone adhesive performance, includes base (1), die holder (2) and upper die base (3), its characterized in that:
the die comprises a base (1), a die holder (2), a heating coil (13), an upper die holder (3), a plurality of sliding grooves (301), a fixed die (12), a heating coil (13), a connecting shaft (7), a plurality of sliding grooves (301), a plurality of sliding blocks (6), a movable block (11), a movable die (11), a lower clamping groove (1102), an upper clamping groove (1101), a plurality of fixing blocks (4), a lower clamping groove (11), a lower clamping groove (1102), a plurality of fixing blocks (4), a lower clamping groove (3), a plurality of fixing blocks (4), and a heating coil (13) are fixedly connected to the upper surface of the die holder (2), fixed block (4) and movable block (6) one-to-one, fixed block (4) are located the outside of movable block (6), fixed block (4) threaded connection has set screw (5), set screw (5) end and movable block (6) swivelling joint.
2. The experimental mold for testing the performance of silicone adhesive according to claim 1, wherein the base (1) is provided with a plurality of mounting holes (101).
3. The experimental mold for testing the performance of the silicone adhesive according to claim 1, wherein a key groove (701) is formed on the peripheral side surface of the connecting shaft (7), and a connecting hole (702) is formed in the key groove (701).
4. The experimental mold for testing the performance of the silicone adhesive according to claim 1, wherein limiting plates (8) are fixedly connected to two sides of the upper mold base (3), limiting grooves (201) are formed in two sides of the inner surface of the lower mold base (2), and the limiting plates (8) are in sliding fit with the limiting grooves (201).
5. The experimental mold for testing the performance of the silicone adhesive as claimed in claim 1, wherein lifting grooves (302) are further formed in the surfaces of the two sides of the upper mold base (3), the lifting grooves (302) are waist-shaped, limit screws (9) are connected to the surfaces of the two sides of the lower mold base (2) in a threaded manner, and one ends of the limit screws (9) are located in the lifting grooves (302).
6. The experimental mold for testing the performance of the silicone adhesive as claimed in claim 5, wherein the diameter of the external thread of the limit screw (9) is slightly smaller than that of the lifting groove (302).
7. The experimental mold for testing the performance of the silicone adhesive according to claim 1, wherein a switch (10) is mounted on one surface of the lower mold base (2), and the switch (10) is electrically connected with the heating coil (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011446296.1A CN112240852B (en) | 2020-12-11 | 2020-12-11 | Experimental mold for testing performance of silicone adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011446296.1A CN112240852B (en) | 2020-12-11 | 2020-12-11 | Experimental mold for testing performance of silicone adhesive |
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| Publication Number | Publication Date |
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| CN112240852A true CN112240852A (en) | 2021-01-19 |
| CN112240852B CN112240852B (en) | 2021-04-23 |
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| CN202011446296.1A Active CN112240852B (en) | 2020-12-11 | 2020-12-11 | Experimental mold for testing performance of silicone adhesive |
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| CN202886192U (en) * | 2012-10-13 | 2013-04-17 | 安徽省建筑工程质量监督检测站 | Sealing rubber strip shear strength test clamp |
| CN205352837U (en) * | 2016-01-26 | 2016-06-29 | 中国建材检验认证集团苏州有限公司 | A anchor clamps for detecting sealed tension and compression performance of gluing |
| CN106124337A (en) * | 2016-08-08 | 2016-11-16 | 浙江工业大学 | A kind of for the test of rubber elastomer high-temerature creep and the device of stress relaxation test |
| CN107560937A (en) * | 2017-10-30 | 2018-01-09 | 哈尔滨工业大学 | A kind of road gap-grouting glue anti-shear performance test fixture and method of testing |
| CN207610974U (en) * | 2017-11-25 | 2018-07-13 | 辽宁双强塑胶科技发展股份有限公司 | A kind of silicone adhesive tensile test device |
| CN111272583A (en) * | 2020-03-31 | 2020-06-12 | 河南牛帕力学工程研究院 | Compression-shear testing machine |
| CN211235324U (en) * | 2019-11-06 | 2020-08-11 | 广西大学 | A test device for shear performance of adhesive materials |
| CN211426070U (en) * | 2019-12-30 | 2020-09-04 | 重庆筑能建设工程质量检测有限公司 | Sealant tensile test fixture |
| CN211877611U (en) * | 2020-04-24 | 2020-11-06 | 安徽屾远材料技术有限公司 | Clamp and device for testing shearing performance of adhesive material |
-
2020
- 2020-12-11 CN CN202011446296.1A patent/CN112240852B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202886192U (en) * | 2012-10-13 | 2013-04-17 | 安徽省建筑工程质量监督检测站 | Sealing rubber strip shear strength test clamp |
| CN205352837U (en) * | 2016-01-26 | 2016-06-29 | 中国建材检验认证集团苏州有限公司 | A anchor clamps for detecting sealed tension and compression performance of gluing |
| CN106124337A (en) * | 2016-08-08 | 2016-11-16 | 浙江工业大学 | A kind of for the test of rubber elastomer high-temerature creep and the device of stress relaxation test |
| CN107560937A (en) * | 2017-10-30 | 2018-01-09 | 哈尔滨工业大学 | A kind of road gap-grouting glue anti-shear performance test fixture and method of testing |
| CN207610974U (en) * | 2017-11-25 | 2018-07-13 | 辽宁双强塑胶科技发展股份有限公司 | A kind of silicone adhesive tensile test device |
| CN211235324U (en) * | 2019-11-06 | 2020-08-11 | 广西大学 | A test device for shear performance of adhesive materials |
| CN211426070U (en) * | 2019-12-30 | 2020-09-04 | 重庆筑能建设工程质量检测有限公司 | Sealant tensile test fixture |
| CN111272583A (en) * | 2020-03-31 | 2020-06-12 | 河南牛帕力学工程研究院 | Compression-shear testing machine |
| CN211877611U (en) * | 2020-04-24 | 2020-11-06 | 安徽屾远材料技术有限公司 | Clamp and device for testing shearing performance of adhesive material |
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| CN112240852B (en) | 2021-04-23 |
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Effective date of registration: 20220507 Address after: 262600 Building 1, No. 2716, Huangshan Road, Dongcheng Street office, Linqu County, Weifang City, Shandong Province Patentee after: Linqu Jindi Rubber Co.,Ltd. Address before: Room 103, 1st floor, 166 Liyuan Middle Road, Jiangning Development Zone, Nanjing, Jiangsu 211100 Patentee before: Nanjing Yihui Instrument Equipment Co.,Ltd. |
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Denomination of invention: An experimental mold for testing the properties of silicone adhesive Effective date of registration: 20230129 Granted publication date: 20210423 Pledgee: Shandong Linqu Rural Commercial Bank Co.,Ltd. Pledgor: Linqu Jindi Rubber Co.,Ltd. Registration number: Y2023980031670 |