CN112816385A - Method for detecting performance of heat-insulation board - Google Patents
Method for detecting performance of heat-insulation board Download PDFInfo
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- CN112816385A CN112816385A CN202011617110.4A CN202011617110A CN112816385A CN 112816385 A CN112816385 A CN 112816385A CN 202011617110 A CN202011617110 A CN 202011617110A CN 112816385 A CN112816385 A CN 112816385A
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- 238000009413 insulation Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000010008 shearing Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 6
- 239000012634 fragment Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 2
- 238000007790 scraping Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 14
- 230000011218 segmentation Effects 0.000 description 11
- 239000002245 particle Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 229920006327 polystyrene foam Polymers 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004590 silicone sealant Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
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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
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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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
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
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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
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
-
- 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
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the field of strength detection, in particular to a method for detecting the performance of a heat-insulation plate, which comprises the following steps: preparing detection equipment comprising an air compressor, a negative pressure suction filter, a splitting knife and a pressing block; step two: detecting the pore permeation condition of the substrate; step three: the splitting knife is contacted with the upper surface of the insulation board; step four: the cutting knife rotates to scrape the upper surface of the insulation board; step five: the pressing block is contacted with the cut insulation board and then pressed until the insulation board is broken; step six: and crushing the broken heat insulation board. When the technical scheme is adopted, the porosity of the substrate can be detected, the bending strength of the insulation board can be rapidly and accurately detected, and the insulation board can be conveniently recovered.
Description
Technical Field
The invention relates to the field of strength detection, in particular to a method for detecting the performance of a heat-insulation board.
Background
The modified polystyrene board is a novel heat-insulating material with heat-insulating and fireproof grade A2, which is prepared by uniformly permeating, curing and drying a low-density EPS (polystyrene) substrate (hereinafter referred to as substrate) and an inorganic cementing material; namely, a plurality of pores are formed on the EPS substrate, and the inorganic cementing material is permeated into the pores and then cured and dried to form the insulation board.
The porosity of the substrate directly determines the fire-proof grade of the finished fireproof heat-insulation board, more permeable inorganic cementing materials are used, the fire-proof grade can reach A2 grade, less permeable inorganic slurry is used, and the fire-proof grade cannot reach A2 grade. However, the porosity is not as high as possible, and the porosity is too high, which causes the loss of the substrate and the loss of the finished board to increase, thus not meeting the actual requirement.
In addition, the flexural strength of the insulation board needs to be detected after the insulation board is produced, the whole insulation board cutting part is usually detected during detection, and due to the fact that the holes formed in the substrate are uneven, the flexural strength of each part of the whole insulation board may be different, and therefore the flexural strength evaluation of the insulation board may be influenced by detecting only the part of the insulation board; and after the rupture strength is detected, the whole insulation board can be abandoned, thereby causing the waste of materials, in particular the waste of polystyrene foam particles.
Disclosure of Invention
The invention aims to provide a method which can detect the porosity of a substrate, is beneficial to quickly and accurately detecting the flexural strength of an insulation board and is convenient for recovering the insulation board.
In order to achieve the purpose, the technical scheme of the invention provides a method for detecting the performance of a heat-insulation plate, which comprises the following steps:
the method comprises the following steps: preparing detection equipment, wherein the detection equipment comprises a rack, an air compressor, a splitting and pressing mechanism and a supporting and crushing mechanism, the splitting and pressing mechanism comprises a connecting plate, a plurality of splitting knives and pressing blocks, the connecting plate is arranged on the rack in a sliding and rotating mode, the splitting knives are detachably arranged on the lower surface of the connecting plate in a crossed mode, the pressing blocks are arranged between the adjacent splitting knives, a shearing sensor is arranged between each pressing block and the connecting plate, the height of each pressing block is smaller than that of each splitting knife, and the air compressor is communicated with the lower surface of the connecting plate; the supporting and crushing mechanism comprises a supporting frame and crushing blocks, the crushing blocks are rotatably arranged in the supporting frame, grooves for inserting the splitting knives are formed in the crushing blocks and the supporting frame, and a negative pressure suction filter is detachably arranged in the supporting frame;
step two: placing the substrate on a supporting frame, sealing a gap reserved between adjacent pressing blocks for mounting a slitting knife and a groove on the supporting frame, driving the pressing blocks to slide by a connecting plate to enable the pressing blocks to be in contact with the upper surface of the substrate, starting an air compressor, observing vacuum degree data through a negative pressure suction filter on the lower surface of the substrate, and then closing the air compressor;
step three: the connection plate is reset, the substrate is taken down, the negative pressure suction filter is taken out of the support frame, the sealing is relieved, the splitting knife is installed, the insulation board is placed on the support frame, the connection plate drives the splitting knife and the pressing block to slide to the position above the insulation board, and the splitting knife is in contact with the upper surface of the insulation board;
step four: the connecting plate rotates to drive the slitting knives to rotate to scrape the upper surfaces of the heat-insulating plates, and the slitting knives arranged in a crossed mode rotate to remove scraps generated in the scraping process;
step five: the connecting plate drives the cutting knife and the pressing block to continuously slide, the cutting knife cuts the insulation board and then enters the groove to limit the cut insulation board, the pressing block is pressed until the insulation board is broken after contacting the cut insulation board, and the data of the force for breaking the insulation board is obtained through the cutting sensor;
step six: the broken heat insulation board is placed in the supporting frame, and the broken block is broken in the rotating process.
The technical effect of the scheme is as follows: the pressurized air passes through the substrate with certain pores from the upper surface of the substrate, and is attenuated by the continuous obstruction of particles, so that the pressure is obviously reduced when the pressure is detected on the lower surface of the substrate; the less pores, the more obstructed the air, the less pressure detected; the more pores, the less the air is obstructed, the greater the pressure detected, thereby completing the detection of the substrate pores.
After the heat insulation plates are cut by the cutting knife, the bending strength detection of a plurality of positions of the heat insulation plates can be conveniently and simultaneously carried out, the accuracy of the bending strength detection of the whole heat insulation plates is ensured while the detection efficiency is high, and therefore the bending strength evaluation of the heat insulation plates in the same batch is more accurate; meanwhile, the upper surface of the insulation board is scraped by the slitting knife, so that the insulation board can be effectively prevented from being broken due to shearing force generated in the process of pressing the insulation board due to the fact that the upper surface of the insulation board is uneven, and further, the inaccurate detection of the breaking strength is avoided; the splitting knife enters the groove to limit the split heat-insulation plate, so that each part of the heat-insulation plate is transversely distributed on the supporting frame and the broken pieces, and the detection accuracy is improved; and utilize the carriage and the broken piece that carry out the support to the heated board in the testing process, can carry out the breakage to the heated board after the fracture, be convenient for retrieve the polystyrene foam particle in the heated board.
Furthermore, a bayonet is arranged on the supporting frame, and the depth of the bayonet is smaller than the thickness of the heat preservation plate. The technical effect of the scheme is as follows: place the heated board to the bayonet socket in, the segmentation sword does benefit to the stability that improves the heated board when strickleing off the heated board with the heated board contact.
Further, the bottom of the bayonet is flush with the upper surface of the broken fragments. The technical effect of the scheme is as follows: the heat insulation plate is beneficial to ensuring that the heat insulation plate is in a horizontal state to receive the pressing of the pressing block.
Furthermore, a cylinder is fixed on the frame, a stepping motor is fixed on an output shaft of the cylinder, and the connecting plate is fixedly connected with the output shaft of the stepping motor. The technical effect of the scheme is as follows: the sliding and rotating arrangement of the connecting plate is convenient to realize.
Furthermore, a servo motor is fixed on the rack, and an output shaft of the servo motor penetrates through the bottom of the supporting frame and is fixedly connected with the lower surface of the crushing block. The technical effect of the scheme is as follows: the heat insulation plate is favorably crushed by forward and backward rotation of the crushing blocks, and the crushing effect is better.
Furthermore, the pressing block is in an isosceles trapezoid shape and is in contact with the slitting knife. The technical effect of the scheme is as follows: the flexural strength detection of the insulation board is facilitated to be improved.
Furthermore, a crushing plate is fixed on the edge of the crushed block. The technical effect of the scheme is as follows: the crushing effect of the insulation board is improved.
Furthermore, a plurality of crushing nails are fixed on each side surface of the crushing blocks. The technical effect of the scheme is as follows: further improve the crushing effect of heated board.
Further, the crushing nails on each side of the crushing block are distributed in a staggered manner. The technical effect of the scheme is as follows: the polystyrene foam particles can be conveniently crushed and separated.
Furthermore, one of the side walls of the supporting frame is rotatably connected with the supporting frame. The technical effect of the scheme is as follows: after one of the side walls of the supporting frame is opened, the crushed particles are convenient to take out of the supporting frame.
Drawings
FIG. 1 is a three-dimensional schematic diagram of a detection apparatus according to an embodiment of the present invention;
FIG. 2 is a three-dimensional schematic view of a connecting plate, a slitting knife, and a pressing block;
FIG. 3 is a three-dimensional schematic view of a support frame and a fragment.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: connecting plate 1, segmentation sword 2, pressing block 3, carriage 4, broken piece 5, bayonet 6, recess 7, breaker 8, heated board 9.
The first embodiment is as follows:
the method for detecting the performance of the insulation board comprises the following steps:
the method comprises the following steps: preparing detection equipment shown in figure 1, wherein the detection equipment comprises a rack, an air compressor, a segmentation pressing mechanism and a supporting and crushing mechanism, the segmentation pressing mechanism comprises an air cylinder, a stepping motor, a connecting plate 1, a segmentation knife 2 and a pressing block 3, the air cylinder is vertically and fixedly arranged on the rack through a bolt, and the air cylinder can be an Sudoku SC (Standard code) air cylinder; the stepping motor is vertically arranged and welded with an output shaft of the air cylinder, the connecting plate 1 is welded with the output shaft of the stepping motor, and the model of the stepping motor is ZX7H-57BYG 007-01.
As shown in fig. 2, the slitting knives 2 are arranged on the lower surface of the connecting plate 1 in a crossed manner, and the slitting knives 2 are detachably connected with the connecting plate 1 through bolts; the pressing blocks 3 are arranged between the adjacent slitting knives 2, the pressing blocks 3 are also welded with the connecting plate 1, two ends of each pressing block 3 are in contact with the slitting knives 2, each pressing block 3 is in an isosceles trapezoid shape, the height of each pressing block 3 is smaller than that of each slitting knife 2, and a pipeline on an air compressor is communicated with the lower surface of the connecting plate; according to the piece 3 division jaggedly, be provided with the shearing sensor in the breach, the shearing sensor is located according to between piece 3 and the connecting plate 1, and the lower extreme of shearing the sensor with according to the contact of piece 3, the upper end of shearing the sensor and the lower surface contact of connecting plate 1, the model of shearing the sensor can select for use DLB, still installs the display screen in the frame, and shearing force data passes through on shearing the sensor transmits the display screen.
As shown in fig. 3, the supporting and crushing mechanism comprises a servo motor, a supporting frame 4 and a crushing block 5, the servo motor and the supporting frame 4 are fixedly mounted on the rack through bolts, the crushing block 5 is located in the supporting frame 4, a hole is formed in the bottom of the supporting frame 4, an output shaft of the servo motor penetrates through the hole to be welded with the lower surface of the crushing block 5, and the type of the servo motor can be selected from MR-J2S-100A.
The support frame 4 is provided with a bayonet 6, the depth of the bayonet 6 is smaller than the thickness of the heat insulation plate 9, and the bottom of the bayonet 6 is flush with the upper surface of the broken block 5. Grooves 7 for inserting the slicing knife 2 shown in figure 2 are formed in the broken fragments 5 and the supporting frame 4; as shown in fig. 3, the edges of the crushed pieces 5 are welded with crushing plates 8. In addition, a negative pressure suction filter is detachably arranged in the supporting frame through bolts.
Step two: placing a substrate on a supporting frame 4, sealing a gap reserved between adjacent pressing blocks 3 and provided with a slitting knife 2 and a groove 7 on the supporting frame with transparent adhesive tape, manually starting a cylinder, driving the pressing blocks 3 to slide by a connecting plate 1 to enable the pressing blocks 3 to be in contact with the upper surface of an insulation board, starting an air compressor, observing vacuum degree data through a negative pressure suction filter on the lower surface of the insulation board, and then closing the air compressor; proved by verification, the vacuum degree is between 0.01 and 0.02MPa, the porosity is optimal, and the permeability is best.
Step three: the connecting plate 1 takes off the base plate and takes out the negative pressure suction filter from the carriage after reseing, remove the transparent adhesive tape and pass through bolt installation segmentation sword 2 to the sealed back of reserving gap of installation segmentation sword 2 and recess 7 on the carriage, then will place in bayonet socket 6 of carriage 4 and on broken fragment 5 as shown in figure 1 heated board 9, drive connecting plate 1 behind the manual work start cylinder, segmentation sword 2 and press briquetting 3 downstream to heated board 9 top, close the cylinder when segmentation sword 2 and heated board 9's upper surface contact, then the manual work starts step motor.
Step four: the step motor rotates the in-process and drives connecting plate 1 and segmentation sword 2 to rotate and strickle the upper surface of heated board 9 off, and the segmentation sword 2 that sets up alternately will strickle off the sweeps that the in-process produced when rotating and clear away, then close step motor.
Step five: the air cylinder is started again, the connecting plate 1, the splitting knife 2 and the pressing block 3 are driven to move downwards continuously, the splitting knife 2 splits the heat insulation plate 9 and then enters the groove 7, the heat insulation plate 9 after splitting is limited, the pressing block 3 is in contact with the heat insulation plate 9 after splitting and then presses the heat insulation plate 9 after splitting until the heat insulation plate 9 is broken, force data of the broken heat insulation plate 9 is transmitted to a display screen through a shearing sensor and is recorded by personnel, then the air cylinder is closed, and the connecting plate 1, the splitting knife 2 and the pressing block 3 are driven to move upwards to be separated from the supporting frame 4 after the air cylinder is closed;
step six: the broken heat insulation board 9 is placed in the supporting frame 4, the servo motor is started, accordingly, the broken blocks 5 are driven to rotate to break the broken heat insulation board 9, and the broken exposed polystyrene foam particles can be recycled.
Example two:
on the basis of the first embodiment, a plurality of crushing nails are welded on each side surface of the crushing block 5 as shown in fig. 3, and the crushing nails on each side surface of the crushing block 5 are distributed in a staggered manner. In addition, three of the four side walls of the support frame 4 are welded to the bottom of the support frame 4, and the other side wall is rotatably connected with the adjacent side wall through a hinge, namely the side wall is rotated and opened to facilitate sweeping out of particles in the support frame 4.
Example three:
the difference from the second embodiment is that the bottom of the bayonet 6 is higher than the upper surface of the crushing block 5, the bottom of the cylindrical barrel is open, the upper end and the lower end of the cylindrical barrel are open, the scribed line I and the scribed line II are respectively marked at the positions of 25cm and 15cm of the height of the cylindrical barrel, the lower end of the cylindrical barrel is in contact with the upper surface of the substrate after the substrate is placed on the supporting frame 4 and is sealed by silicone sealant, the cylindrical barrel is fixed by hands, 2kg of tap water is poured inwards, the pouring time is 2-3 s, the water level descending time is recorded, and the time from the scribed line I to the scribed line II is up; through data analysis, the optimal water flow permeation time is 7-9s, the porosity of the EPS substrate is optimal, and the comprehensive performance is best.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (10)
1. The method for detecting the performance of the heat-insulation board is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: preparing detection equipment, wherein the detection equipment comprises a rack, an air compressor, a splitting and pressing mechanism and a supporting and crushing mechanism, the splitting and pressing mechanism comprises a connecting plate, a plurality of splitting knives and pressing blocks, the connecting plate is arranged on the rack in a sliding and rotating mode, the splitting knives are detachably arranged on the lower surface of the connecting plate in a crossed mode, the pressing blocks are arranged between the adjacent splitting knives, a shearing sensor is arranged between each pressing block and the connecting plate, the height of each pressing block is smaller than that of each splitting knife, and the air compressor is communicated with the lower surface of the connecting plate; the supporting and crushing mechanism comprises a supporting frame and crushing blocks, the crushing blocks are rotatably arranged in the supporting frame, grooves for inserting the splitting knives are formed in the crushing blocks and the supporting frame, and a negative pressure suction filter is detachably arranged in the supporting frame;
step two: placing the substrate on a supporting frame, sealing a gap reserved between adjacent pressing blocks for mounting a slitting knife and a groove on the supporting frame, driving the pressing blocks to slide by a connecting plate to enable the pressing blocks to be in contact with the upper surface of the substrate, starting an air compressor, observing vacuum degree data through a negative pressure suction filter on the lower surface of the substrate, and then closing the air compressor;
step three: the connection plate is reset, the substrate is taken down, the negative pressure suction filter is taken out of the support frame, the sealing is relieved, the splitting knife is installed, the insulation board is placed on the support frame, the connection plate drives the splitting knife and the pressing block to slide to the position above the insulation board, and the splitting knife is in contact with the upper surface of the insulation board;
step four: the connecting plate rotates to drive the slitting knives to rotate to scrape the upper surfaces of the heat-insulating plates, and the slitting knives arranged in a crossed mode rotate to remove scraps generated in the scraping process;
step five: the connecting plate drives the cutting knife and the pressing block to continuously slide, the cutting knife cuts the insulation board and then enters the groove to limit the cut insulation board, the pressing block is pressed until the insulation board is broken after contacting the cut insulation board, and the data of the force for breaking the insulation board is obtained through the cutting sensor;
step six: the broken heat insulation board is placed in the supporting frame, and the broken block is broken in the rotating process.
2. The method for detecting the performance of the heat-insulation board according to claim 1, characterized in that: the support frame is provided with a bayonet, and the depth of the bayonet is smaller than the thickness of the heat preservation plate.
3. The method for detecting the performance of the heat-insulation board according to claim 2, characterized in that: the bottom of the bayonet is flush with the upper surface of the broken fragments.
4. The method for detecting the performance of the heat-insulation board according to claim 3, characterized in that: an air cylinder is fixed on the frame, a stepping motor is fixed on an output shaft of the air cylinder, and the connecting plate is fixedly connected with the output shaft of the stepping motor.
5. The method for detecting the performance of the heat-insulation board according to claim 4, wherein the method comprises the following steps: a servo motor is fixed on the frame, and an output shaft of the servo motor penetrates through the bottom of the supporting frame and is fixedly connected with the lower surface of the crushing block.
6. The method for detecting the performance of the heat-insulation board according to claim 5, wherein the method comprises the following steps: the pressing block is in an isosceles trapezoid shape and is in contact with the slitting knife.
7. The method for detecting the performance of the heat-insulation board according to claim 6, wherein the method comprises the following steps: the edge of the broken block is fixed with a breaking plate.
8. The method for detecting the performance of the heat-insulation board according to claim 7, characterized in that: a plurality of crushing nails are fixed on each side surface of the crushing blocks.
9. The method for detecting the performance of the insulation board according to claim 8, wherein the method comprises the following steps: the crushing nails on each side surface of the crushing block are distributed in a staggered manner.
10. The method for detecting the performance of the insulation board according to claim 9, characterized in that: one of the side walls of the supporting frame is rotatably connected with the supporting frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011617110.4A CN112816385B (en) | 2020-12-31 | 2020-12-31 | Method for detecting performance of heat insulation board |
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| CN202011617110.4A CN112816385B (en) | 2020-12-31 | 2020-12-31 | Method for detecting performance of heat insulation board |
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| CN112816385A true CN112816385A (en) | 2021-05-18 |
| CN112816385B CN112816385B (en) | 2023-09-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115678021A (en) * | 2022-11-14 | 2023-02-03 | 常州工程职业技术学院 | Convenient synthesis method of polyfluorene block copolymer |
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| CN206324154U (en) * | 2016-09-19 | 2017-07-14 | 商丘师范学院 | Multifunctional fruit vegetable drink maker |
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| CN115678021A (en) * | 2022-11-14 | 2023-02-03 | 常州工程职业技术学院 | Convenient synthesis method of polyfluorene block copolymer |
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| CN112816385B (en) | 2023-09-08 |
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