CN103737516B - Micro-tensile bonding strength testing fixture for dental bonding agent - Google Patents
Micro-tensile bonding strength testing fixture for dental bonding agent Download PDFInfo
- Publication number
- CN103737516B CN103737516B CN201310732593.6A CN201310732593A CN103737516B CN 103737516 B CN103737516 B CN 103737516B CN 201310732593 A CN201310732593 A CN 201310732593A CN 103737516 B CN103737516 B CN 103737516B
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- China
- Prior art keywords
- sample
- slide block
- fixedly connected
- nut
- binding agent
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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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)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a micro-tensile bonding strength testing fixture for a dental bonding agent. The front portion of a connecting shaft is provided with a guide rod, and the side face of the back portion of the connecting shaft is provided with a bolt hole; an upper slide block and a lower slide block sliding along the guide rod are fixedly connected to the guide rod; a rigid pull rod is fixedly connected to the upper portion of the upper slide block; the central lines of the upper and lower slide blocks are provided with sample limiting grooves. The micro-tensile bonding strength testing fixture has the advantages that the connecting shaft of a universal test is used together with the universal test, thereby greatly reducing the cost of separate use of a micro-tensile tester and expanding the function of the universal tester; a bonded article is compressed through dual nuts and a gasket without bonding the bonded article on a test table by using the bonding agent; during cutting of a bonded sample, the bonding surface is kept flat, and the strain defect during cutting of the bonded sample can be avoided by directly cutting the bonded sample into small pieces as required; the testing fixture is stable in clamping, convenience in use, simple in structure, and very low in cost; by adopting the guide rod, the bonding strength test result is more accurate.
Description
Technical field
The present invention relates to the adhesion strength test macro of widely used oral cavity gear division binding agent in dental care field, be specifically related to a kind of microtensile bond strength test fixture of gear division binding agent.
Background technology
Binding agent is widely used in Dental Erosion.The performance evaluation of gear division binding agent is mainly concerned with the mensuration to sclerous tissues's adhesion strength, and adhesion strength is a most important index in gear division binding agent development process.Existing a kind of micro-stretching test instrument, without guide post in its structure, without lateral restriction when being stretched and be separated from each other, the adhesion strength value recorded is lower, and fracture surface of sample presents feature when material bending ruptures.Number of patent application is the micro drafting device that patent discloses the Mechanics Performance Testing of a kind of material nano yardstick of 200810050350.3, but its complex structure, and it is advantageous that the accurate control to loading force.Therefore the micro drafting device of report is not still suitable for the adhesion strength test of gear division binding agent at present.
Summary of the invention
Technical problem to be solved by this invention is, provides that a kind of clamping is firm, easy to use, structure simple, cost is lower, and can be matching used with universal testing machine, for the microtensile bond strength test fixture of gear division binding agent.The present invention is also applicable to adhesion strength or the hot strength test of the tiny sampler outside gear division binding agent.
A microtensile bond strength test fixture for gear division binding agent, is characterized in that, connecting axle front portion is guide post, and rear side is provided with pin hole; During duty, top shoe is fixedly connected with pull bar, is slidably connected with guide post simultaneously; Sliding block is fixedly connected with guide post;
The working face of upper and lower slide block is positioned at same level, and the center line position of upper and lower slide block working face is provided with sample stopper slot.
Described pull bar is U-shaped structure; Described pull bar is fixedly connected with top shoe by nut and pad; Described upper and lower slide block is connected with guide post by nut.
Described tested sample is fixed by nut and pad.
The nut of described fixing tested sample is double nut.
The invention has the advantages that:
One, by sample stopper slot, be convenient to fixing small in sticky sample, itself and groove side are close to, keep itself and opposite side to be glued sample on the same line, avoid and directly offset small when boning by sticky sample, cause bonding not exclusively;
Two, by the pin hole on connecting axle and U-shaped pull bar and universal testing machine is affixed supports the use, greatly reduce and be used alone the cost that micro-stretching test instrument carries out adhesion strength test, and extend the function of universal testing machine;
Three, being compressed by sticky sample by double nut shimming, will be bonded on testboard by sticky sample without the need to re-using binding agent;
Four, guaranteed the smooth of adhesive surface by during sticky sample cutting, then the direct size by demand is cut into pieces, and the sample glued can be avoided to occur when cutting the test error that stress defect causes;
Five, test fixture clamping is firm, easy to use, structure simple, cost is very low.
Six, because slide block moves on the guide bar, and tooth sheet or resin for restoration sheet are fixed on the stopper slot place in slide block, in drawing process, two slide block movements drive sample stressed on parallel guide bars direction, ensure that not by distortion power or other external force in sample extension process, thus make adhesion strength test result more accurate.
Accompanying drawing explanation
Accompanying drawing 1 is structure sectional view of the present invention.
Accompanying drawing 2 is structural representation of the present invention.
Accompanying drawing 3 is top view of the present invention.
1 push-and-pull rod, 2 clamp nuts,
3 slide blocks, 31 top shoes, 32 sliding blocks, 33 planes, 34 inclined-planes,
4 connecting axles, 5 guide posts, 6 pads, 7 stopper slots, 8 clamp nuts, 9 pin holes, 10 binding agents, 11 samples, 12 samples.
Detailed description of the invention
Below by way of specific embodiment, technical scheme of the present invention is further described.Following embodiment further illustrates of the present invention, and do not limit the scope of the invention.
A microtensile bond strength test fixture for gear division binding agent, connecting axle 4 front portion is guide post 5, and rear side is provided with pin hole 9; During duty, top shoe 31 is fixedly connected with pull bar 1, is slidably connected with guide post 5 simultaneously; Sliding block 32 is fixedly connected with guide post;
The working face of upper and lower slide block is positioned at same level, and the center line position of upper and lower slide block working face is provided with sample stopper slot 7.
Described pull bar is U-shaped structure; Described pull bar is fixedly connected with top shoe by nut 2 and pad 6; Described upper and lower slide block is connected with guide post by nut 8.During duty, top shoe and guide post are slidably connected; When not working, in order to prevent top shoe from skidding off guide post, be fixedly connected with guide post by nut 8.
Described tested sample is fixed by nut 2 and pad 6.
The nut 2 of described fixing tested sample can adopt double nuts structure, so operationally, can ensure that sample is better compressed.
The bottom of the opposite face of described top shoe 31 and sliding block 32 is plane 33, and top is inclined-plane 34.This structure is convenient to place sample, and ensures that sample remains on same working face being stretched, when boning.
Described stopper slot, its width is greater than the width of tested sample, is convenient to place tested sample.
During use, original test fixture on the alternative universal testing machine of the present invention.Pin hole on pin hole on connecting axle 4 of the present invention and universal testing machine testing element pedestal matches, and inserts an original latch in pin hole; U-shaped for rigidity pull bar is fixedly connected on the upper end-fixture pedestal of universal testing machine by original latch simultaneously; Realize the connection of the present invention and universal testing machine thus.
Operation principle of the present invention is, upper and lower slide block is provided with sample stopper slot, for putting test sample 11,12(tooth sheet or resin for restoration sheet respectively).In use procedure, first sample is seated in respectively two stopper slot places, and and close contact parallel with a side of stopper slot, build pad respectively again, screw clamp nut, make sample be fixed in stopper slot, prevent it stressed and skid off from sample stopper slot in drawing process, top shoe is also fixedly connected with pull bar by clamp nut simultaneously; Then sliding block is fixing on the guide bar by clamp nut; Then at sample test face coating adhesive 10, top shoe is moved to sliding block direction, sample contacts in upper and lower slide block stopper slot, adhesive cures is made under LED illumination, then by connecting axle and universal testing machine affixed, the U-shaped pull bar of rigidity is fixedly connected on the upper end-fixture pedestal of universal testing machine by original latch simultaneously.Start universal testing machine, adhesive surface length, width worth needed for calculating according to software input adhesion strength, finally calculate adhesion strength.
The present invention can be widely used in the adhesive property evaluation application of binding agent.
Claims (5)
1. a microtensile bond strength test fixture for gear division binding agent, is characterized in that, connecting axle front portion is guide post, and rear side is provided with pin hole; During duty, top shoe is fixedly connected with pull bar, is slidably connected with guide post simultaneously; Sliding block is fixedly connected with guide post;
The working face of upper and lower slide block is positioned at same level, and the center line position of upper and lower slide block working face is provided with sample stopper slot;
Described pull bar is U-shaped structure; Described pull bar is fixedly connected with top shoe by nut and pad; Described upper and lower slide block is connected with guide post by nut;
Pin hole on pin hole on connecting axle and universal testing machine testing element pedestal matches, and inserts an original latch in pin hole; U-shaped for rigidity pull bar is fixedly connected on the upper end-fixture pedestal of universal testing machine by original latch simultaneously.
2. according to the microtensile bond strength test fixture of gear division binding agent according to claim 1, it is characterized in that, tested sample is fixed by nut and pad.
3. according to the microtensile bond strength test fixture of gear division binding agent according to claim 2, it is characterized in that, the nut of described fixing tested sample is double nut.
4. according to the microtensile bond strength test fixture of gear division binding agent according to claim 3, it is characterized in that, the bottom of the opposite face of described top shoe and sliding block is plane, and top is inclined-plane.
5. according to the microtensile bond strength test fixture of gear division binding agent according to claim 4, it is characterized in that, described stopper slot, its width is greater than the width of sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310732593.6A CN103737516B (en) | 2013-12-25 | 2013-12-25 | Micro-tensile bonding strength testing fixture for dental bonding agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310732593.6A CN103737516B (en) | 2013-12-25 | 2013-12-25 | Micro-tensile bonding strength testing fixture for dental bonding agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103737516A CN103737516A (en) | 2014-04-23 |
| CN103737516B true CN103737516B (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310732593.6A Expired - Fee Related CN103737516B (en) | 2013-12-25 | 2013-12-25 | Micro-tensile bonding strength testing fixture for dental bonding agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103737516B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10254206B2 (en) | 2016-09-27 | 2019-04-09 | The Boeing Company | Self contained load frame for in-situ inspection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0348177A2 (en) * | 1988-06-23 | 1989-12-27 | Amcor Limited | Testing apparatus |
| CN101226120A (en) * | 2008-01-30 | 2008-07-23 | 赵宏伟 | Micro drafting device for testing test piece material nano metric mechanical properties |
| CN202256126U (en) * | 2011-09-23 | 2012-05-30 | 潍坊汇胜绝缘技术有限公司 | A clamp for testing interlayer engagement intensity of cardboards |
| CN203732357U (en) * | 2013-12-25 | 2014-07-23 | 上海纳米技术及应用国家工程研究中心有限公司 | Dental bonding agent strength testing clamp |
-
2013
- 2013-12-25 CN CN201310732593.6A patent/CN103737516B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0348177A2 (en) * | 1988-06-23 | 1989-12-27 | Amcor Limited | Testing apparatus |
| CN101226120A (en) * | 2008-01-30 | 2008-07-23 | 赵宏伟 | Micro drafting device for testing test piece material nano metric mechanical properties |
| CN202256126U (en) * | 2011-09-23 | 2012-05-30 | 潍坊汇胜绝缘技术有限公司 | A clamp for testing interlayer engagement intensity of cardboards |
| CN203732357U (en) * | 2013-12-25 | 2014-07-23 | 上海纳米技术及应用国家工程研究中心有限公司 | Dental bonding agent strength testing clamp |
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| Publication number | Publication date |
|---|---|
| CN103737516A (en) | 2014-04-23 |
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Granted publication date: 20150708 Termination date: 20171225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |