CN103604745A - Device and method for testing internal bonding strength of wood floor - Google Patents
Device and method for testing internal bonding strength of wood floor Download PDFInfo
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- CN103604745A CN103604745A CN201310607063.9A CN201310607063A CN103604745A CN 103604745 A CN103604745 A CN 103604745A CN 201310607063 A CN201310607063 A CN 201310607063A CN 103604745 A CN103604745 A CN 103604745A
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Abstract
The invention relates to the technical field of machinery testing, and particularly relates to a device and method for testing the internal bonding strength of a wood floor. The device is used for testing the internal bonding strength of a wood floor test piece. The device comprises heating equipment, cooling equipment and stretching equipment, wherein the stretching equipment comprises an upper pull rod, a lower pull rod, an upper clamp arranged at the lower end of the upper pull rod, a lower clamp arranged at the upper end of the lower pull rod, an upper clamp head and a lower clamp head; the upper surface of the wood floor test piece is fixedly connected with the lower surface of the upper clamp head through an adhesive, the lower surface of the wood floor test piece is fixedly connected with the upper surface of the lower clamp head through an adhesive, the wood floor test piece, the upper clamp head and the lower clamp head form an integrated test piece assembly; and the upper part of the upper clamp head is clamped with the upper clamp, and the lower part of the lower clamp head is clamped with the lower clamp. The method is clear and scientific in principle, and higher in accuracy and reliability of a testing result.
Description
Technical field
The present invention relates to the technical field of mechanical test, relate in particular to a kind of timber floor internal bond strength proving installation and method of testing thereof.
Background technology
Along with the fast development of building industry, interior decoration industry is more and more subject to pursuing of a lot of people, and timber floor is as one of important materials of interior decoration, and its growth momentum is also suitable powerful.
In existing timber floor manufacturing procedure, the internal bond strength of general timber floor is difficult to effectively control, even if also can there is certain difference in the internal bond strength of the same batch of timber floor of producing, at present the ruggedness test before finished products of wood is dispatched from the factory is normally by manually carrying out pick test, and its assay exists very large leak.Therefore, how effectively control survey timber floor internal bond strength problem become this technical field major issue urgently to be resolved hurrily.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve the problem proposing in above-mentioned background technology, the invention provides a kind of timber floor internal bond strength proving installation and method of testing thereof, to improve degree of accuracy and the fiduciary level of timber floor internal bond strength assay, guarantee the quality of timber floor product.
The technical solution adopted for the present invention to solve the technical problems is: a kind of timber floor internal bond strength proving installation, for testing the internal bond strength of timber floor test specimen, this device comprises firing equipment, cooling device and stretcher, and stretcher comprises upper connecting rod, lower link, be installed on the upper jig of upper connecting rod lower end, be installed on lower jig, upper chuck and the lower dop of lower link upper end; The upper surface of timber floor test specimen is fixedly connected with by tackifier with the lower surface of upper chuck, and the lower surface of timber floor test specimen is fixedly connected with by tackifier with the upper surface of lower dop, timber floor test specimen and upper chuck and lower dop shape all-in-one-piece test specimen assembly; The top of upper chuck and the clamping of upper jig phase, the bottom of lower dop and the clamping of lower jig phase.
Tackifier is wherein made by firing equipment heating.Cooling device is for cooling curing test specimen assembly.
The method of testing of timber floor internal bond strength, specific as follows:
One, first prepare timber floor test specimen, the size of timber floor test specimen: length dimension l=50mm ± 1mm, width dimensions b=50mm ± 1mm, and allow timber floor test specimen transfer to constant mass in (20 ± 2) ℃, relative humidity (65 ± 5) ﹪ condition;
Two, then solid-state glue is placed in firing equipment and is heated, thereby prepare tackifier;
Three, again the upper surface of timber floor test specimen is fixedly connected with by tackifier with the lower surface of upper chuck in stretcher, the lower surface of timber floor test specimen is also fixedly connected with by tackifier with the upper surface of lower dop in stretcher, thereby timber floor test specimen and upper chuck and lower dop shape all-in-one-piece test specimen assembly, again test specimen assembly is placed in cooling device, carry out cooling, after cooling, again test specimen assembly is placed under (20 ± 2) ℃, relative humidity (65 ± 5) ﹪ condition, after test specimen assembly glueds joint firmly, detects;
Four, again by the upper jig phase clamping in the top of the upper chuck in test specimen assembly and stretcher, and the lower jig phase clamping in the bottom of the lower dop in test specimen assembly and stretcher;
Five, finally start stretcher the internal bond strength of timber floor test specimen is tested, uniform load lotus during test, starts to make timber floor test specimen to destroy in (60 ± 30) s from loading, writes down maximum load value, is accurate to 10N;
The internal bond strength of timber floor test specimen calculates, and is accurate to 0.01MPa;
In formula: σ
⊥---timber floor test specimen 1 internal bond strength, MPa;
P
max---maximum load when timber floor test specimen 1 destroys, N;
L---timber floor test specimen 1 length, mm;
B---timber floor test specimen 1 width, mm.
The internal bond strength of a timber floor is the arithmetic mean of a plurality of timber floor test specimen internal bond strengths in same timber floor, is accurate to 0.01MPa.
Beneficial effect of the present invention: this timber floor internal bond strength proving installation is by the internal bond strength of a plurality of timber floor test specimens in test same timber floor, get the mean value of its internal bond strength, can obtain the internal bond strength of monoblock timber floor, the clear and definite science of its method of testing principle, degree of accuracy and the fiduciary level of test result are higher, and then have guaranteed the quality of timber floor product.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structured flowchart of timber floor internal bond strength proving installation of the present invention;
Fig. 2 is that test specimen assembly is arranged on the structural representation on stretcher;
Fig. 3 is the structural representation of test specimen assembly.
In figure: 1, timber floor test specimen, 2, firing equipment, 3, cooling device, 4, stretcher, 4-1, upper connecting rod, 4-2, lower link, 4-3, upper jig, 4-4, lower jig, 4-5, upper chuck, 4-6, lower dop, 5, test specimen assembly.
Embodiment
Timber floor internal bond strength proving installation as shown in Figure 1, Figure 2 and Figure 3, for testing the internal bond strength of timber floor test specimen 1, this device comprises firing equipment 2, cooling device 3 and stretcher 4, and stretcher 4 comprises upper connecting rod 4-1, lower link 4-2, be installed on the upper jig 4-3 of upper connecting rod 4-1 lower end, be installed on lower jig 4-4, upper chuck 4-5 and the lower dop 4-6 of lower link 4-2 upper end; The upper surface of timber floor test specimen 1 is fixedly connected with by tackifier with the lower surface of upper chuck 4-5, the lower surface of timber floor test specimen 1 is fixedly connected with by tackifier with the upper surface of lower dop 4-6, timber floor test specimen 1 and upper chuck 4-5 and lower dop 4-6 shape all-in-one-piece test specimen assembly 5; The top of upper chuck 4-5 and the clamping of upper jig 4-3 phase, the bottom of lower dop 4-6 and the clamping of lower jig 4-4 phase.Wherein tackifier is made by firing equipment 2 heating.Cooling device 3 is for cooling curing test specimen assembly 5.
The method of testing of utilizing timber floor internal bond strength proving installation test timber floor internal bond strength, principle is to determine the maximal destruction pulling force on vertical timber floor test specimen 1 surface and the ratio of timber floor test specimen 1 area; Concrete method of testing is as follows:
One, first prepare timber floor test specimen 1, the size of timber floor test specimen 1: the size of measuring respectively its length and width in the length direction of timber floor test specimen 1 and the centerline of Width, length dimension l=50mm ± 1mm, width dimensions b=50mm ± 1mm, and allow timber floor test specimen 1 transfer to constant mass in (20 ± 2) ℃, relative humidity (65 ± 5) ﹪ condition;
Two, then solid-state glue is placed in firing equipment 2 and is heated, thereby prepare tackifier, wherein tackifier is polyvinyl acetate latex or hot melt adhesive etc.
Three, again the upper surface of timber floor test specimen 1 is fixedly connected with by tackifier with the lower surface of upper chuck 4-5 in stretcher 4, the lower surface of timber floor test specimen 1 is also fixedly connected with by tackifier with the upper surface of lower dop 4-6 in stretcher 4, thereby timber floor test specimen 1 and upper chuck 4-5 and lower dop 4-6 shape all-in-one-piece test specimen assembly 5, again test specimen assembly 5 is placed in cooling device 3, carry out cooling, after cooling, again test specimen assembly 5 is placed on to (20 ± 2) ℃, under relative humidity (65 ± 5) ﹪ condition, after glueing joint firmly, test specimen assembly 5 detects,
Four, again by the upper jig 4-3 phase clamping in the top of the upper chuck 4-5 in test specimen assembly 5 and stretcher 4, and the lower jig 4-4 phase clamping in the bottom of the lower dop 4-6 in test specimen assembly 5 and stretcher 4;
Five, the internal bond strength that finally starts 4 pairs of timber floor test specimens 1 of stretcher is tested, uniform load lotus during test, from loading, start to make timber floor test specimen 1 to destroy in (60 ± 30) s, write down maximum load value, be accurate to 10N, if tackifier destroys while testing, cause timber floor test specimen 1 and upper chuck 4-5 or separated with lower dop 4-6, should replace original timber floor test specimen 1, and separately get new timber floor test specimen 1 and retest;
The internal bond strength of timber floor test specimen 1 calculates, and is accurate to 0.01MPa;
In formula: σ
⊥---timber floor test specimen 1 internal bond strength, MPa;
P
max---maximum load when timber floor test specimen 1 destroys, N;
L---timber floor test specimen 1 length, mm;
B---timber floor test specimen 1 width, mm.
The internal bond strength of a timber floor is the arithmetic mean of a plurality of timber floor test specimen 1 internal bond strengths in same timber floor, is accurate to 0.01MPa.
Claims (4)
1. a timber floor internal bond strength proving installation, be used for testing the internal bond strength of timber floor test specimen (1), it is characterized in that: this device comprises firing equipment (2), cooling device (3) and stretcher (4), described stretcher (4) comprises upper connecting rod (4-1), lower link (4-2), be installed on the upper jig (4-3) of upper connecting rod (4-1) lower end, be installed on lower jig (4-4), upper chuck (4-5) and the lower dop (4-6) of lower link (4-2) upper end;
The upper surface of described timber floor test specimen (1) is fixedly connected with by tackifier with the lower surface of described upper chuck (4-5), the lower surface of timber floor test specimen (1) is fixedly connected with by tackifier with the upper surface of described lower dop (4-6), and timber floor test specimen (1) and upper chuck (4-5) and lower dop (4-6) form the test specimen assembly (5) of integrative-structure;
The top of described upper chuck (4-5) and described upper jig (4-3) phase clamping, the bottom of described lower dop (4-6) and described lower jig (4-4) phase clamping.
2. timber floor internal bond strength proving installation as claimed in claim 1, is characterized in that: described tackifier is made by firing equipment (2) heating.
3. timber floor internal bond strength proving installation as claimed in claim 1, is characterized in that: described cooling device (3) is for the test specimen assembly (5) described in cooling curing.
4. a method of testing of utilizing timber floor internal bond strength proving installation test timber floor internal bond strength as claimed in claim 1, is characterized in that: method of testing is as follows:
One, first prepare timber floor test specimen (1), the size of timber floor test specimen (1): length dimension l=50mm ± 1mm, width dimensions b=50mm ± 1mm, and allow timber floor test specimen (1) transfer to constant mass in (20 ± 2) ℃, relative humidity (65 ± 5) ﹪ condition;
Two, then solid-state glue is placed in firing equipment (2) and is heated, thereby prepare tackifier;
Three, again the upper surface of timber floor test specimen (1) is fixedly connected with by tackifier with the lower surface of upper chuck (4-5) in stretcher (4), the lower surface of timber floor test specimen (1) is also fixedly connected with by tackifier with the upper surface of lower dop (4-6) in stretcher (4), thereby timber floor test specimen (1) and upper chuck (4-5) and lower dop (4-6) shape all-in-one-piece test specimen assembly (5), again test specimen assembly (5) is placed in cooling device (3), carry out cooling, after cooling, again test specimen assembly (5) is placed on to (20 ± 2) ℃, under relative humidity (65 ± 5) ﹪ condition, after glueing joint firmly, test specimen assembly (5) detects,
Four, again by upper jig (4-3) the phase clamping in the top of the upper chuck (4-5) in test specimen assembly (5) and stretcher (4), and lower jig (4-4) the phase clamping in the bottom of the lower dop (4-6) in test specimen assembly (5) and stretcher (4);
Five, finally start stretcher (4) internal bond strength of timber floor test specimen (1) is tested, uniform load lotus during test, starts to make timber floor test specimen (1) to destroy in (60 ± 30) s from loading, writes down maximum load value, is accurate to 10N;
The internal bond strength of timber floor test specimen (1) calculates, and is accurate to 0.01MPa;
In formula: σ
⊥---timber floor test specimen 1 internal bond strength, MPa;
P
max---maximum load when timber floor test specimen 1 destroys, N;
L---timber floor test specimen 1 length, mm;
B---timber floor test specimen 1 width, mm.
The internal bond strength of a timber floor is the arithmetic mean of a plurality of timber floor test specimens (1) internal bond strength in same timber floor, is accurate to 0.01MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310607063.9A CN103604745A (en) | 2013-11-25 | 2013-11-25 | Device and method for testing internal bonding strength of wood floor |
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| CN201310607063.9A CN103604745A (en) | 2013-11-25 | 2013-11-25 | Device and method for testing internal bonding strength of wood floor |
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| CN103604745A true CN103604745A (en) | 2014-02-26 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900955A (en) * | 2014-04-11 | 2014-07-02 | 河北工业大学 | Device for quantitatively testing initial viscosity of adhesive and test method |
| CN104964924A (en) * | 2015-07-14 | 2015-10-07 | 小米科技有限责任公司 | Jig for drawing force detection and drawing force detection system |
| CN105510226A (en) * | 2015-12-08 | 2016-04-20 | 中国建材检验认证集团股份有限公司 | Method and device for testing bonding property of second-time sealant of hollow glass |
| CN106525572A (en) * | 2016-12-09 | 2017-03-22 | 张家港市利奇塑料有限公司 | Self-adhesive test fixture |
| CN108896404A (en) * | 2018-06-19 | 2018-11-27 | 中国铁路总公司 | A kind of prefabricated components are glued the experimental rig and its test method of seam tensile strength |
| CN111707608A (en) * | 2020-05-25 | 2020-09-25 | 潍坊汇胜绝缘技术有限公司 | Test method for detecting interlayer bonding strength of insulating paperboard |
| CN112798419A (en) * | 2021-02-01 | 2021-05-14 | 新誉集团有限公司 | Out-of-plane tensile failure testing method for cementing piece |
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| CN1382530A (en) * | 2002-05-28 | 2002-12-04 | 蔡鹏鉫 | Hot colloidal liquid coating machine |
| CN2543923Y (en) * | 2002-03-18 | 2003-04-09 | 李其树 | Gluing adhering machine |
| JP2004317373A (en) * | 2003-04-17 | 2004-11-11 | Matsushita Electric Works Ltd | Method of inspecting wooden building |
| CN2742427Y (en) * | 2004-11-03 | 2005-11-23 | 上海大学 | Adhesive strength tester for wood adhesive |
| CN203630027U (en) * | 2013-11-25 | 2014-06-04 | 常州市产品质量监督检验所 | Device for testing internal bonding strength of wood floor |
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| CN2543923Y (en) * | 2002-03-18 | 2003-04-09 | 李其树 | Gluing adhering machine |
| CN1382530A (en) * | 2002-05-28 | 2002-12-04 | 蔡鹏鉫 | Hot colloidal liquid coating machine |
| JP2004317373A (en) * | 2003-04-17 | 2004-11-11 | Matsushita Electric Works Ltd | Method of inspecting wooden building |
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Non-Patent Citations (1)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900955A (en) * | 2014-04-11 | 2014-07-02 | 河北工业大学 | Device for quantitatively testing initial viscosity of adhesive and test method |
| CN104964924A (en) * | 2015-07-14 | 2015-10-07 | 小米科技有限责任公司 | Jig for drawing force detection and drawing force detection system |
| CN105510226A (en) * | 2015-12-08 | 2016-04-20 | 中国建材检验认证集团股份有限公司 | Method and device for testing bonding property of second-time sealant of hollow glass |
| CN106525572A (en) * | 2016-12-09 | 2017-03-22 | 张家港市利奇塑料有限公司 | Self-adhesive test fixture |
| CN108896404A (en) * | 2018-06-19 | 2018-11-27 | 中国铁路总公司 | A kind of prefabricated components are glued the experimental rig and its test method of seam tensile strength |
| CN111707608A (en) * | 2020-05-25 | 2020-09-25 | 潍坊汇胜绝缘技术有限公司 | Test method for detecting interlayer bonding strength of insulating paperboard |
| CN112798419A (en) * | 2021-02-01 | 2021-05-14 | 新誉集团有限公司 | Out-of-plane tensile failure testing method for cementing piece |
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Application publication date: 20140226 |