CN101413873B - Method for detecting floor substrate water absorption expansion rate and water absorption height - Google Patents
Method for detecting floor substrate water absorption expansion rate and water absorption height Download PDFInfo
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- CN101413873B CN101413873B CN2008102355879A CN200810235587A CN101413873B CN 101413873 B CN101413873 B CN 101413873B CN 2008102355879 A CN2008102355879 A CN 2008102355879A CN 200810235587 A CN200810235587 A CN 200810235587A CN 101413873 B CN101413873 B CN 101413873B
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Abstract
The invention discloses a detection method for floor substrate water absorption expansion rate and water absorption height, which comprises the following steps: (1) according to the same order, the same specifications, and the same date, a sheet of floor substrate is extracted, two test pieces of the floor substrate with the 150 mm multiplied by 50 mm are prepared, and then are set aside for 24 hours; (2) the height of the 50mm upward from the bottom of the test piece is lined out with an immersion line; and then the thickness of the three points being marked at the edge of the test piece mark is measured; (3) the test piece is soaked in water for about three hours; the test piece is taken out every half hour; the thickness of the three points at the edge of the test piece and the height of the moisture rising of the edge are measured and recorded; and then the relative expansion rate of the water absorption of the floor thickness is calculated and is compared with the standard value of the invention to determine whether the floor is qualified or not. In the method, the project which measuring the water absorption of the test piece is added, thus further perfecting the detection method. The method changes the original 24 hour soaking of the test piece into the 3 hour soaking, thus shortening the waiting time of detecting and increasing the working efficiency of the test piece detection of the floor substrate.
Description
Technical field
The present invention relates to a kind of detection method of composite floor board, relate in particular to a kind of composite floor board base material edge expansion rate of water absorption and suction height detection method, belong to the building decoration technology field.
Background technology
Composite floor board obtains application more and more widely with its high emulation, advantage such as durable in use, good and cheap; The composite floor board base material mainly adopts the middle and higher density fiberboard; Because there is the space in middle and higher density fiberboard inside; Though the balance layer of the bottom surface of composite floor board and the wearing layer of end face had all been done water-proofing treatment, the tenon and the groove of snap close have also applied water barrier around it, because snap close does not coat layer protective layer; Cause moisture to penetrate in the base material from the snap close of composite floor board easily, cause the dilatational strain of floor base material.
The detection method of existing composite floor board base material expansion rate of water absorption is (LY/T1611-2003) to stipulate according to forestry industry standard " floor base material is used fiberboard "; According to extracting same order of classes or grades at school, same specification, same date a floor base material; Two of the floor base material test specimens of preparation 50mm * 50mm; The floor base material test specimen of 50mm * 50mm is immersed in 20 ℃ of water 24 hours,, judges the quality of floor base material through measuring the expansion rate of water absorption of test specimen middle part.In practical application; Some second-rate imbibition index of 24 hours of composite floor board base material test specimen meets industry standard; But the absorption speed of composite floor board base material test specimen is very fast, just reaches the suction state of saturation in about 2 hours in suction; Prolong soak time again, composite floor board base material test specimen can further not absorb water yet; The position of composite floor board base material test specimen imbibition simultaneously is or not the center, floor, but concentrates on the edge on floor, and this moment, the edge of composite floor board will perk, and its outward appearance is very ugly.The user can find to mop floor through using wet mop always, or because of carelessness after a beach water is arranged on the floor, and soaked edge, floor will perk soon, has a strong impact on the outward appearance of composite floor board.Obviously, the detection method of existing composite floor board base material expansion rate of water absorption can not reflect the process of composite floor board imbibition in the actual use fully, in addition, index of expansion rate of water absorption is only arranged, and can not express the degree of composite floor board imbibition fully.
Summary of the invention
In order to reflect composite floor board base material imbibition process more realistically; Characterize the relative expansion rate of water absorption of composite floor board base material test specimen more practically; The present invention proposes a kind of detection method of floor base material expansion rate of water absorption, has also proposed a kind of detection method of floor base material suction height.
The present invention is achieved through following technical scheme:
The detection method of a kind of floor base material expansion rate of water absorption and suction height may further comprise the steps:
1), two of the floor base material test specimens of preparation 150mm * 50mm, in 20 ± 2 ℃ of room temperatures, relative humidity 65 ± 5% condition held 24 hours, make its water cut stable;
2), the short transverse on the floor base material test specimen; Upwards the height of 50mm marks immersion line from the bottom; The horizontal line of 25mm and the intersection point at height edge, both sides make progress at the mid point of test specimen submergence part bottom 50mm width, from the bottom; Make a mark respectively, measure said thickness at 3, and note down;
3), with before and after two test specimens or left and right sides bath vertically separated by a distance go in the tank, the tank liquid level is to immersion line, said two test specimens bottom keeps certain distance with bottom of gullet;
4), two test specimens are immersed in the water time at 3 hours ± 15 minutes, every take out test specimen at a distance from half an hour therebetween, wipe surface attachment water, do to measure as follows:
A, as 2) described three measurement points measure its thickness h
2
B, measure the lifting height H of water along the test specimen edge;
Above-mentioned each surveying work must be accomplished in 5 minutes;
5), calculate ground plate thickness suction relative expansion rate as shown in the formula:
In the following formula: D---thickness swelling rate, %
h
1The thickness mm of test specimen before----immersion
h
2The thickness mm of----immersion back test specimen
H in the formula
1, h
2Get two test specimens arithmetic mean of totally 6 measurement point measured values;
5) whether qualified the criterion of floor base material expansion rate of water absorption and suction height is following:
| Time | 0.5 hour | 1 hour | 1.5 |
2 hours | 2.5 hour | 3.0 hour |
| Water sucting thickness relative expansion rate % | 1.0 | 2.0 | 3.5 | 6.0 | 6.5 | 7.0 |
| Suction height mm | 50 | 52 | 55 | 60 | 65 | 70 |
The object of the invention can also further realize through following technical measures:
The detection method of aforesaid floor base material expansion rate of water absorption and suction height, before and after wherein said two test specimens or about the 10～50mm of being separated by, said two test specimens bottom keeps 10～50mm with bottom of gullet.
The detection method of aforesaid floor base material expansion rate of water absorption and suction height, the pH value of wherein said tank inner storing water is 7 ± 1, temperature is 20 ± 2 ℃.
The present invention reflects composite floor board base material imbibition process truly; The present invention changes the method for the expansion rate of water absorption of original measurement test specimen middle part into meet reality more three check points establishing at floor base material test specimen edge; Measure the method for floor base material test specimen edge expansion rate of water absorption, characterized the relative expansion rate of water absorption of composite floor board base material test specimen more practically.The present invention has set up the test item of direct measurement floor base material test specimen suction height, the further perfect detection method of floor base material test specimen.The present invention soaks original floor base material test specimen and changed 3 hours in 24 hours, the time to be detected such as has shortened greatly, has improved the work efficiency that the imbibition of floor base material test specimen detects.
Advantage of the present invention and characteristics will illustrate through the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide with reference to accompanying drawing as an example.
Description of drawings
Fig. 1 is the synoptic diagram that the present invention detects the floor base material expansion rate of water absorption;
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Referring to Fig. 1:
Earlier,, make its water cut stable in 20 ± 2 ℃ of room temperatures, relative humidity 65 ± 5% condition held 24 hours with 1 two of the floor base material test specimens of the 150mm * 50mm for preparing.
On the floor base material test specimen, make following mark: at the length direction of floor base material test specimen; Upwards 50mm marks immersion line 11 from the bottom; The horizontal line of 25mm and the intersection point at height edge, both sides make progress at the mid point of test specimen submergence part bottom 50mm width, from the bottom; Make a mark 14,12,13 respectively, measure said thickness h at 3
1, and note down.
Two test specimen 1 front and back or left and right sides standoff distance a are kept 10～50mm, and bath vertically is gone in the tank 2, and the distance b of 11, two test specimen 1 bottoms of tank liquid level 21 to immersion line and bottom of gullet keeps 10～50mm distance.
Two test specimens 1 are immersed in the water time at 3 hours ± 15 minutes, every take out test specimen 1 at a distance from half an hour therebetween, wipe surface attachment water, do to measure as follows:
A, measure its thickness h at three measurement points shown in Figure 1 12,13,14
2
B, measure the lifting height H of water along the test specimen edge;
Above-mentioned each surveying work is no more than 5 minutes.
Whether the requirement judgement floor base material expansion rate of water absorption and the suction height of according to the form below be qualified.
| Time | 0.5 hour | 1.0 hour | 1.5 |
2 hours | 2.5 hour | 3.0 hour |
| Water sucting thickness relative expansion rate % | 1.0 | 2.0 | 3.5 | 6.0 | 6.5 | 7.0 |
| Suction height mm | 50 | 52 | 55 | 60 | 65 | 70 |
Except that the foregoing description, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (3)
1. the detection method of floor base material expansion rate of water absorption and suction height is characterized in that, may further comprise the steps:
1), according to extracting same order of classes or grades at school, same specification, same date a floor base material, two of the floor base material test specimens of preparation 150mm * 50mm in 20 ± 2 ℃ of room temperatures, relative humidity 65 ± 5% condition held 24 hours, make its water cut stable;
2), the short transverse on the floor base material test specimen; Upwards the height of 50mm marks immersion line from the bottom; The horizontal line of 25mm and the intersection point at height edge, both sides make progress at the mid point of test specimen submergence part bottom 50mm width, from the bottom; Make a mark respectively, measure said thickness at 3, and note down;
3), with before and after two test specimens or left and right sides bath vertically separated by a distance go in the tank, the tank liquid level is to immersion line, said two test specimens bottom keeps certain distance with bottom of gullet;
4), two test specimens are immersed in the water time at 3 hours ± 15 minutes, every take out test specimen at a distance from half an hour therebetween, wipe surface attachment water, do to measure as follows:
A, as 2) described three measurement points measure its thickness h
2
B, measurement water are along the suction height H that rises on the test specimen edge;
Above-mentioned each surveying work must be accomplished in 5 minutes;
5), calculate the floor base material expansion rate of water absorption as shown in the formula:
In the following formula: D---floor base material expansion rate of water absorption %
h
1The thickness mm of test specimen before----immersion
h
2The thickness mm of----immersion back test specimen
H in the formula
1, h
2Get two test specimens arithmetic mean of totally 6 measurement point measured values.
2. the detection method of floor base material expansion rate of water absorption as claimed in claim 1 and suction height is characterized in that, before and after said two test specimens or about the 10～50mm of being separated by, said two test specimens bottom keeps 10～50mm with bottom of gullet.
3. the detection method of floor base material expansion rate of water absorption as claimed in claim 1 and suction height is characterized in that, the pH value of said tank inner storing water is 7 ± 1, and temperature is 20 ± 2 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102355879A CN101413873B (en) | 2008-12-01 | 2008-12-01 | Method for detecting floor substrate water absorption expansion rate and water absorption height |
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| CN2008102355879A CN101413873B (en) | 2008-12-01 | 2008-12-01 | Method for detecting floor substrate water absorption expansion rate and water absorption height |
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| CN101413873A CN101413873A (en) | 2009-04-22 |
| CN101413873B true CN101413873B (en) | 2012-02-15 |
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| CN102495093B (en) * | 2011-12-12 | 2014-01-01 | 久盛地板有限公司 | Method and device for testing geothermal floor |
| US9170237B2 (en) * | 2014-02-07 | 2015-10-27 | United States Gypsum Company | Positive drive floor test apparatus |
| CN103900943B (en) * | 2014-04-10 | 2016-05-18 | 中国海洋石油总公司 | A kind of testing arrangement and method of testing of imbibition resin particle imbibe multiplying power |
| CN107462697B (en) * | 2017-09-12 | 2019-08-16 | 黑龙江省木材科学研究所 | A kind of device and test method detecting wood floors thickness swelling rate |
| CN108196041A (en) * | 2017-12-26 | 2018-06-22 | 圣象（江苏）木业研究有限公司 | A kind of detection method of consolidated floor humidity resistance |
| CN109696143B (en) * | 2019-01-11 | 2024-02-06 | 吉林大学 | Waterproof pad device for automobile and control method thereof |
| CN110405889B (en) * | 2019-07-15 | 2022-02-08 | 欧派家居集团股份有限公司 | Method for detecting deformation prevention reliability of plate |
| CN112255368A (en) * | 2020-10-10 | 2021-01-22 | 中国林业科学研究院木材工业研究所 | Method for preparing water absorption thickness expansion rate capability verification sample based on artificial board section density |
| CN116625781B (en) * | 2023-07-20 | 2023-10-13 | 泗阳县通源木业有限公司 | Device and method for testing dipping and peeling of glued wood floor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150083A (en) * | 1995-11-15 | 1997-05-21 | 淄博中利塑胶制品有限公司 | Baseboard material for plastic composite floor |
| CA2322067A1 (en) * | 1999-10-08 | 2001-04-08 | Chunping Dai | Method and apparatus for post-production dimensional stabilization of lignocellulosic or cellulosic fibre-based composite products using high-frequency heating and pressure |
-
2008
- 2008-12-01 CN CN2008102355879A patent/CN101413873B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150083A (en) * | 1995-11-15 | 1997-05-21 | 淄博中利塑胶制品有限公司 | Baseboard material for plastic composite floor |
| CA2322067A1 (en) * | 1999-10-08 | 2001-04-08 | Chunping Dai | Method and apparatus for post-production dimensional stabilization of lignocellulosic or cellulosic fibre-based composite products using high-frequency heating and pressure |
Non-Patent Citations (2)
| Title |
|---|
| 中国林业科学研究院木材工业研究所.吸水厚度膨胀率检验.《GB/T18102-2007浸渍纸层压木质地板》.2007, * |
| 国家林业局.吸水厚度膨胀率测定.《LY/T1611-2003地板基材用纤维板》.2003, * |
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Effective date of registration: 20181128 Address after: 212300 Daya Wood Industry Park, Danyang Economic and Technological Development Zone, Zhenjiang City, Jiangsu Province Patentee after: Asia Dekor Industries (Shengzhun) Co., Ltd. Address before: 212300 Daya Wood Industry Park, Danyang Economic and Technological Development Zone, Jiangsu Province Patentee before: Jiangsu Hongnai Wood Co., Ltd. |
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