CN110618052A - Wood floor veneer anti-cracking performance detection device for floor heating - Google Patents
Wood floor veneer anti-cracking performance detection device for floor heating Download PDFInfo
- Publication number
- CN110618052A CN110618052A CN201910882705.3A CN201910882705A CN110618052A CN 110618052 A CN110618052 A CN 110618052A CN 201910882705 A CN201910882705 A CN 201910882705A CN 110618052 A CN110618052 A CN 110618052A
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- Prior art keywords
- floor
- heat insulation
- wood floor
- insulation box
- wood
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
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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
- G01N3/60—Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
-
- 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
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
-
- 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
- G01N2203/0224—Thermal cycling
Abstract
The invention discloses a device for detecting the anti-cracking performance of a wood floor veneer for floor heating, which comprises: the heat insulation box is used for simulating a real heating environment of a floor, and an accommodating space for placing a wood floor to be tested is arranged in the heat insulation box; the electric heating module is used for simulating a floor heating system; the temperature detection module at least can sense the temperatures of the upper surface and the lower surface of the wood floor to be detected, the electric heating module and the heat insulation box; and a humidity detection module for sensing the humidity inside the heat insulation box. The wood floor to be tested is spliced and then placed into the heat insulation box, the wood floors are fixedly spliced and fixed with the bottom of the heat insulation box through bolts, then the heat insulation box is placed in a low-temperature environment, a certain heat source temperature is provided through the heating module, and after the wood floor is heated for a certain time, whether the surface of the wood floor has a cracking phenomenon or not is observed to determine the cracking resistance and the heating rule of the wood floor, so that the qualification rate of products leaving the factory in the same batch is improved, and the service life of the products is prolonged.
Description
Technical Field
The invention relates to the technical field of wood board detection, in particular to a device for detecting the crack resistance of a wood floor veneer for floor heating.
Background
Along with the improvement of living standard of people, the popularity of the wood floor on a heating system is higher and higher, however, the problem that the floor finish cracks seriously often appears on the wood floor after long-time operation. At present, the crack resistance of the floor veneer is generally tested according to the existing relevant standard LY/T1700-2018 wood floor for floor heating, namely, a test piece is put into an air convection drying oven at the temperature of (70 +/-2) DEG for treatment (48 +/-0.25) hours and then taken out, the test piece is cooled to room temperature, and under natural light, the position about 40cm away from the surface of the test piece is observed by naked eyes from any angle, so that the crack resistance of the wood floor can be detected. However, because the bottom surface temperature of the wood board is high and the surface temperature is low in the heating system, the standard detection method cannot exactly simulate the heating environment of the floor, including various factors such as temperature, humidity and heat conduction.
Therefore, aiming at the problems, the detection device for detecting the cracking resistance of the wood floor veneer for floor heating is researched and designed, and has important significance for monitoring the product quality, analyzing the product performance, improving the product qualification rate of a factory and prolonging the service life of the factory product.
Disclosure of Invention
It is an object of the present invention to address at least the above-mentioned deficiencies and to provide at least the advantages which will be described hereinafter.
Another object of the present invention is to provide a detecting apparatus that can obtain more accurate crack resistance of the floor heating wood flooring.
To achieve these objects and other advantages and in accordance with the purpose of the invention, the present invention provides an apparatus for detecting crack resistance of a wood flooring veneer for floor heating, comprising:
the heat insulation box is used for simulating a real heating environment of a floor, and an accommodating space for placing a wood floor to be tested is arranged in the heat insulation box;
the electric heating module is used for simulating a floor heating system;
the temperature detection module at least can sense the temperatures of the upper surface and the lower surface of the wood floor to be detected, the electric heating module and the heat insulation box; and a humidity detection module for sensing the humidity inside the heat insulation box.
The heat insulation box can be placed in the low temperature environment and used for simulating the low temperature environment, the heating environment of the floor can be simulated by combining the electric heating module, the cracking resistance performance and the heating rule of the floor in the low temperature environment can be measured by the temperature detection module and the humidity detection module, so that the qualification rate of the factory products in the same batch is improved, and the safe use of the products is ensured.
Preferably, the wood floor veneer anti-cracking performance detection device for floor heating further comprises a heat insulation layer arranged at the bottom of the accommodating space, and an aluminum foil is attached to one surface of the heat insulation layer facing the accommodating space.
Preferably, the floor heating wood floor veneer anti-cracking performance detection device further comprises a keel, wherein the keel allows a base plate to be measured to be fixed on the keel in a mounting mode of a real floor. The real installation of the floor is simulated to obtain more real data of the floor.
Preferably, in the wood floor veneer anti-cracking performance detection device for floor heating, the keel is arranged above the heat insulation layer, and the wood floor to be detected is fixed above the keel.
Preferably, in the wood floor veneer anti-cracking performance detection device for floor heating, the electric heating module is an electric heating cable or an electric heating film or an electric heating plate, and the electric heating cable or the electric heating film or the electric heating plate is fixed below the keel and corresponds to the wood floor to be detected.
Preferably, in the wood floor veneer anti-cracking performance detection device for floor heating, the temperature detection module is a multi-channel temperature recorder, and the multi-channel temperature recorder is provided with detection points on the upper surface and the lower surface of the wood floor to be detected, the electric heating module and the heat insulation box.
Preferably, in the wood floor veneer anti-cracking performance detection device for floor heating, the wood floor to be detected is formed by splicing a plurality of wood floors according to a real wood floor structure; the wood floor to be tested is cut to form the size matched with the inner space of the heat insulation box, and when the wood floor to be tested is installed inside the heat insulation box, the wood floor to be tested is fixed at the bottom of the heat insulation box through bolts so as to simulate the real floor paving effect.
The invention at least comprises the following beneficial effects:
the device provided by the invention is used for detecting samples in the same batch, placing the device in a low-temperature environment, simulating a real heating environment of the floor, observing whether cracks exist on the surface of the floor after long-time heating, and determining whether the crack resistance of the wood floor in the batch meets the use condition in the low-temperature environment, so that the factory qualification rate of products in the same batch is improved, and the use safety of the products is ensured.
The device provided by the invention is used for detecting samples in the same batch, and under the condition that the temperature of a heat source (namely an electric heating module) is fixed, the temperature of the board surface and the board bottom and the data when the temperature of the wooden floor is stable are recorded every 10s, so that the temperature rising rule and the stable temperature of the wooden floor in the batch can be obtained, a factory can introduce products in more detail, and a client can know the product performance more intuitively.
The device provided by the invention is used for detecting samples in the same batch, applying different heat source temperatures to the samples respectively, recording the temperature change every 10s, and detecting the most appropriate heat source temperature of the batch of floors when all the test pieces reach stable temperature and the temperature rise rate is not influenced by the change of the heat source temperature, so that the waste of energy is reduced.
The device can provide a reliable theoretical basis and related experimental data for a wood floor for heating in a more deep exploration manner in the future.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural view of a detection device for detecting cracking resistance of a wood floor veneer for floor heating according to the present invention;
FIG. 2 is a top view of an insulated box according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.
As shown in fig. 1 and 2, a checking device for crack resistance of wood floor finish for floor heating comprises:
the heat insulation box 1 is used for simulating a house, and an accommodating space for accommodating a wood floor 3 to be tested is arranged in the heat insulation box;
an electric heating module 2 used for simulating a floor heating system;
the temperature detection module 4 at least can sense the temperatures of the upper surface and the lower surface of the wood floor 3 to be detected, the electric heating module 2 and the heat insulation box 1; and a humidity detection module 7 for sensing the humidity inside the heat insulation box 1.
The heat insulation box can be placed in the low temperature environment and used for simulating the low temperature environment, the heating environment of the floor can be simulated by combining the electric heating module, the cracking resistance performance and the heating rule of the floor in the low temperature environment can be measured by the temperature detection module and the humidity detection module, so that the qualification rate of the factory products in the same batch is improved, and the safe use of the products is ensured.
Further, still including setting up the insulating layer 5 in accommodation space bottom, the aluminium foil is pasted to insulating layer 5 towards accommodation space one side.
Further, the floor to be measured also comprises a keel 6, wherein the keel 6 allows the floor to be measured to be fixed on the floor to be measured in the installation mode of a real floor, and the real installation of the floor is simulated so as to measure more real data of the floor.
Further, the keel 6 is arranged above the heat insulation layer 5, and the wood floor 3 to be tested is fixed above the keel 6 through a bolt.
Further, the electric heating module 2 is an electric heating cable or an electric heating film or an electric heating plate, and the electric heating cable or the electric heating film or the electric heating plate is fixed below the keel 6 and corresponds to the wood floor to be tested.
Further, the temperature detection module 4 is a multi-channel temperature recorder, and the multi-channel temperature recorder is provided with detection points on the upper and lower surfaces of the wood floor 3 to be detected, the electric heating module 2 and the heat insulation box 1.
Further, as shown in fig. 2, the wood floor 3 to be tested is formed by splicing a plurality of wood floors according to a real wood floor structure; the wood floor 3 to be tested is cut to form the size matched with the internal space of the heat insulation box 1, and when the wood floor 3 to be tested is installed inside the heat insulation box 1, the wood floor 3 to be tested is fixed at the bottom of the heat insulation box 1 through the bolt 8 so as to simulate the real floor paving effect.
Example 1
The method comprises the following steps: splicing the three floors, placing the three floors into a low-temperature refrigerator (-20 +/-3 ℃) to stand for 12 hours, and then placing the three floors on a keel of the heating simulation structure shown in the figure 1; the edges of the spliced three floors are fixed at the bottom of the heat insulation box through bolts, and if the size of the spliced wood floor module is too large, the size of the spliced wood floor module meets the size of the inside of the heat insulation box through cutting; if the size is too small, the size reaches the size inside the heat insulation box through splicing, and the heat insulation box is fixed through bolts so as to simulate the real floor paving effect.
Step two: the heat insulation box is closed, the power supply is turned on, and electric heating is carried out to simulate a temperature rising environment.
Step three: under the environmental conditions of the environmental temperature and humidity of 20 +/-3 ℃ and the humidity of 50%, the surface temperature of the electric heating module is maintained at 85 +/-5 ℃ (the temperature is controlled by the electric heating module), the surface temperature of the floor is maintained at 65 +/-5 ℃, and the floor is kept for 12 hours after the floor reaches a stable state; then placing the mixture in a low-temperature refrigerator (-20 +/-3 ℃) and standing for 24 hours; circulating for 5 times, and standing for 24h under the environmental conditions of the environmental temperature and humidity of 20 +/-3 ℃ and the humidity of 50%.
Step four: the presence or absence of bubbling, discoloration, and cracking was observed under a magnifying glass.
Example 2
The method comprises the following steps: splicing the three floors, placing the three floors into a low-temperature refrigerator (minus 10 +/-3 ℃) for standing for 12 hours, and then placing the three floors on a keel of the heating simulation structure shown in the figure 1; the edges of the spliced three floors are fixed at the bottom of the heat insulation box through bolts, and if the size of the spliced wood floor module is too large, the size of the spliced wood floor module meets the size of the inside of the heat insulation box through cutting; if the size is too small, the size reaches the size inside the heat insulation box through splicing, and the heat insulation box is fixed through bolts so as to simulate the real floor paving effect.
Step two: the heat insulation box is closed, the power supply is turned on, and electric heating is carried out to simulate a temperature rising environment.
Step three: and under the environmental conditions that the environmental temperature is 10 +/-3 ℃ and the humidity is 50%, the surface temperature of the electric heating module is maintained at 85 ℃ (the temperature is controlled by the electric heating module). The surface temperature and the bottom surface temperature of the floor are recorded every 10s, and when the surface temperature and the bottom surface temperature of the floor are stable, the temperature is kept for 1 h.
Step four: and (4) drawing a coordinate graph according to the format of the abscissa time and the ordinate temperature by using the related data, so as to obtain the heating law of the batch of wood floors at the heat source temperature of 85 ℃.
Example 3
The method comprises the following steps: splicing the three floors, placing the three floors into a low-temperature refrigerator (minus 15 +/-3 ℃) for standing for 12 hours, and then placing the three floors on a keel of the heating simulation structure shown in the figure 1; the edges of the spliced three floors are fixed at the bottom of the heat insulation box through bolts, and if the size of the spliced wood floor module is too large, the size of the spliced wood floor module meets the size of the inside of the heat insulation box through cutting; if the size is too small, the size reaches the size inside the heat insulation box through splicing, and the heat insulation box is fixed through bolts so as to simulate the real floor paving effect.
Step two: the heat insulation box is closed, the power supply is turned on, and electric heating is carried out to simulate a temperature rising environment.
Step three: the surface temperature of the electric heating module is stabilized at 80 ℃, 85 ℃, 90 ℃ and 95 ℃ respectively under the environmental conditions that the environmental temperature is 15 +/-3 ℃ and the humidity is 50%. The temperature of the surface and the bottom of the floor is recorded every 10s, and the temperature of the surface and the temperature of the bottom of the floor are kept for 1h when the temperature of the surface and the temperature of the bottom of the floor are stable.
Step four: and (3) drawing a coordinate graph of the related data according to the formats of abscissa time and ordinate temperature, and drawing a heating rule fitting curve under different heat source temperatures by using origin2018 software, so that the optimal heat source temperature can be selected.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art.
Claims (7)
1. The utility model provides a timber apron veneer anti-cracking performance detection device for ground heating which characterized in that includes:
the heat insulation box is used for simulating a real heating environment of a floor, and an accommodating space for placing a wood floor to be tested is arranged in the heat insulation box;
the electric heating module is used for simulating a floor heating system;
the temperature detection module at least can sense the temperatures of the upper surface and the lower surface of the wood floor to be detected, the electric heating module and the heat insulation box; and a humidity detection module for sensing the humidity inside the heat insulation box.
2. The detection device for detecting the crack resistance of the wood floor veneer for floor heating according to claim 1, further comprising a heat insulation layer arranged at the bottom of the accommodating space, wherein an aluminum foil is attached to one surface of the heat insulation layer facing the accommodating space.
3. The apparatus of claim 2, further comprising a keel allowing a base plate to be measured to be fixed thereon in a manner of installing the real floor.
4. The wood floor veneer anti-cracking performance detection device for floor heating according to claim 3, wherein the keel is arranged above the heat insulation layer, and the wood floor to be detected is fixed above the keel.
5. The device for detecting the crack resistance of the wood floor veneer for floor heating according to claim 4, wherein the electric heating module is an electric heating cable, an electric heating film or an electric heating plate, and the electric heating cable, the electric heating film or the electric heating plate is fixed below the keel and corresponds to the wood floor to be detected.
6. The detection device for detecting the anti-cracking performance of the wood floor veneer for floor heating according to claim 5, wherein the temperature detection module is a multi-channel temperature recorder, and the multi-channel temperature recorder is provided with detection points on the upper and lower surfaces of the wood floor to be detected, the electric heating module and the heat insulation box.
7. The wood floor veneer anti-cracking performance detection device for floor heating according to claim 1, wherein the wood floor to be detected is formed by splicing a plurality of wood floors according to a real wood floor structure; the wood floor to be tested is cut to form the size matched with the inner space of the heat insulation box, and when the wood floor to be tested is installed inside the heat insulation box, the wood floor to be tested is fixed at the bottom of the heat insulation box through bolts so as to simulate the real floor paving effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910882705.3A CN110618052A (en) | 2019-09-18 | 2019-09-18 | Wood floor veneer anti-cracking performance detection device for floor heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910882705.3A CN110618052A (en) | 2019-09-18 | 2019-09-18 | Wood floor veneer anti-cracking performance detection device for floor heating |
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| Publication Number | Publication Date |
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| CN110618052A true CN110618052A (en) | 2019-12-27 |
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| CN201910882705.3A Pending CN110618052A (en) | 2019-09-18 | 2019-09-18 | Wood floor veneer anti-cracking performance detection device for floor heating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113820351A (en) * | 2021-10-12 | 2021-12-21 | 黑龙江省木材科学研究所 | Device and method for detecting heat conduction efficiency of wood floor by simulating indoor heating environment |
-
2019
- 2019-09-18 CN CN201910882705.3A patent/CN110618052A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113820351A (en) * | 2021-10-12 | 2021-12-21 | 黑龙江省木材科学研究所 | Device and method for detecting heat conduction efficiency of wood floor by simulating indoor heating environment |
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