CN112945848A - Method for testing cutting processing performance of ceramic plate - Google Patents
Method for testing cutting processing performance of ceramic plate Download PDFInfo
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- CN112945848A CN112945848A CN202110122409.0A CN202110122409A CN112945848A CN 112945848 A CN112945848 A CN 112945848A CN 202110122409 A CN202110122409 A CN 202110122409A CN 112945848 A CN112945848 A CN 112945848A
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Abstract
The application discloses a method for testing the cutting processability of a ceramic plate, which comprises the following steps: after a specified pattern is cut in the ceramic plate by cutting equipment, checking whether the ceramic plate cracks or not; the edge of the designated figure has a gap with the outer edge of the ceramic plate; the designated graph is a sawtooth-shaped curve which is formed by connecting a plurality of sawteeth end to end. The utility model provides a simple and easy ceramic plate cutting processing performance's inspection method, the region of ceramic plate cutting has been injectd, and there is the clearance between the cutting figure in this region and the ceramic plate border, otherwise the ceramic plate of inspection will not ftracture, this scheme has still injectd specific figure and has been prescribed the zigzag curve simultaneously, special zigzag curve figure in this scheme of adoption just enables the cutting processing performance inspection result of ceramic plate more accurate, specific zigzag curve can set up to the list or many, the inspection result that corresponds is all comparatively accurate.
Description
Technical Field
The application relates to the technical field of ceramic plate inspection, in particular to a method for inspecting the cutting processability of a ceramic plate.
Background
The ceramic plate is applied to building decoration, but is also applied to household table boards, furniture decorative panels, electrical appliance panels and the like, and the ceramic plate is required to be cut and machined in the applications, so that the requirement on the cutting machinability of the ceramic plate is high, and a simple and feasible inspection method is required to be researched for judging the cutting machinability of the ceramic plate.
At present, more than 100 enterprises are producing and about to produce ceramic plates in China, but in the processing process, the quality problem that a plurality of ceramic plate products are easy to crack during cutting is solved, the actual cutting damage rate reaches about 20-50%, and the normal use of the ceramic plates is seriously influenced. At present, enterprises do not have a good inspection method for ceramic plates, when inspection is needed, a water jet cutter is usually adopted to perform trial cutting on ceramic plate samples according to the requirements of processing patterns, the damage rate of the finally obtained ceramic plates is still low, and hidden dangers existing in the ceramic plate products are difficult to find; research and development of ultrasonic flaw detection (for metal) instruments and method research are carried out by scientific research institutions and universities, but when the ceramic plates are detected actually, the detection data are found to be irregular, and the reproducibility is low; test method K currently used for special ceramicsICFracture toughnessAnd the performance index is used for analyzing a large amount of data of which the detection effect is to be accumulated and detected when the ceramic plate material is detected, and the actual cutting and processing performance of the ceramic plate material is judged and researched for a while.
Disclosure of Invention
The application mainly aims to provide a method for testing the cutting and processing performance of a ceramic plate, and aims to solve the technical problems that no method for testing the specific processing performance of the ceramic plate exists in the existing testing mode, and an ultrasonic flaw detection instrument is high in cost and difficult to popularize and use in a large range.
In order to achieve the above object, the present application provides a method for testing the cutting processability of a ceramic plate, comprising the following steps: after a specified pattern is cut in the ceramic plate by cutting equipment, checking whether the ceramic plate cracks or not;
the edge of the designated figure has a gap with the outer edge of the ceramic plate;
the designated graph is a sawtooth-shaped curve which is formed by connecting a plurality of sawteeth end to end.
Optionally, the width of the gap is more than or equal to 20 mm.
Optionally, the designated pattern comprises a jagged curve, the strip of the jagged curve passing through a diagonal of the ceramic plate.
Optionally, the designated pattern includes a plurality of zigzag curves, and each zigzag curve does not intersect.
Optionally, a plurality of the saw-tooth curves are arranged in parallel on the ceramic plate.
Optionally, the designated pattern includes two of the jagged curves.
Optionally, any side length L of the sawtooth is 200-400 mm.
Optionally, the included angle θ of the saw teeth ranges from 5 ≦ θ <90 °.
The method for testing the cutting processability of the ceramic plate has the following beneficial effects: the method has the advantages that the specified graph for cutting the ceramic plate is limited, a gap needs to exist between the specified graph in the cutting area and the edge of the ceramic plate, otherwise, the detected ceramic plate cannot crack, meanwhile, the specific specified graph is limited to be a zigzag curve, the special graph in the scheme can enable the cutting performance detection result of the ceramic plate to be more accurate, the arrangement modes of the zigzag curve are two, and when the specified graph is set to be a single zigzag curve, the diagonal line of the ceramic plate needs to be passed through; when the designated graph is set to be two or more zigzag curves, the breakage rate obtained by the parallel arranged zigzag curves is larger, and the inspection effect of the cutting processing performance of the ceramic plate can be better reflected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of an embodiment (group 1) of a specified pattern in the method for testing cutting workability of a ceramic plate material according to the present invention;
FIG. 2 is a schematic view of a designated graph for group 2 during cutting;
the invention discloses a schematic diagram of another embodiment of a designated graph in the method for testing the cutting processing performance of the ceramic plate;
FIG. 3 is a diagram of designated graphics for group 3 during cutting;
FIG. 4 is a diagram of a designated pattern for group 4 during cutting;
FIG. 5 is a diagram of designated graphics for group 5 during cutting;
FIG. 6 is a diagram of a designated pattern for group 6 during cutting;
FIG. 7 is a diagram of designated graphics for group 7 during cutting;
FIG. 8 is a diagram of designated graphics for group 8 during cutting;
FIG. 9 is a diagram of designated graphics for group 9 during cutting;
FIG. 10 is a schematic view of a designated pattern of group 10 as cut;
FIG. 11 is a schematic view of a designated pattern of group 11 during cutting;
FIG. 12 is a schematic view of a designated pattern of group 12 as it is cut;
fig. 13 is a schematic view of another example (group 13) of the specified pattern in the method for testing the cutting workability of the ceramic plate material according to the present invention.
In the drawings: 1-ceramic plate, 11-designated pattern, 12-gap, 111-sawtooth.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications such as up, down, left, right, front, and rear … … are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship, motion, and the like between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indications are changed accordingly. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In an embodiment of the application, a method for testing the cutting processability of a ceramic plate comprises the following steps: after a specified pattern is cut in the ceramic plate by cutting equipment, checking whether the ceramic plate cracks or not;
the edge of the designated figure has a gap with the outer edge of the ceramic plate;
the designated graph is a sawtooth-shaped curve which is formed by connecting a plurality of sawteeth end to end.
Ceramic slabs such as ceramic rock slabs are balanced from the macroscopic mechanical population of the material, with the sum of the positive and negative tensile and compressive stresses being zero. However, according to the results of ultrasonic stress testing after actual testing, the mechanical distribution in a local range (ranging from several centimeters to several centimeters, even about 1 meter) may be uneven, which results in the possibility of damage of the rock plate during processing and cutting, the ceramic rock plate belongs to a brittle material, when the cutting meets a stress abrupt change region, a stress concentration point is easy to generate micro-crack expansion, and further cracking is generated, for example, when a region with a low stress value is cut into a region with a high stress value, cutting damage may be generated, and when a region with a high stress value is cut into a region with a low stress value, cutting cracking is also easy to generate.
Therefore, the cutting processability of the ceramic rock plate needs to be tested, the stress concentration area needs to be exposed as much as possible, when the stress concentration area is increased, the cracking possibility of the ceramic plate 1 is increased, but the stress concentration points are not too many, otherwise, all the ceramic plates 1 are cracked, and the final test data is influenced. Therefore, the simple and feasible method for testing the cutting processability of the ceramic plate has the advantages that the cutting area of the ceramic plate 1 is limited, the ceramic plate 1 is directly cut from the inside of the ceramic plate 1, the ceramic plate 1 is not cut from the outside to the inside of the ceramic plate 1, namely, a gap 12 needs to exist between a specified graph in the cutting area and the ceramic plate 1, otherwise, the tested ceramic plate 1 cannot crack, the cutting processability of the ceramic plate cannot be tested, and besides, the ceramic plate 1 cannot crack when the ceramic plate is cut from the center of the ceramic plate 1 to the edge of the ceramic plate 1 and cannot be used for testing the cutting processability of the ceramic plate 1; meanwhile, the specific designated graph 11 is limited to be a zigzag curve, the cutting processing performance test result of the ceramic plate 1 can be more accurate only by adopting the special designated graph in the scheme, a certain gap 12 is required between the cutting starting point and the edge of the ceramic plate 1 when the test is carried out, and otherwise, the performance test result of the ceramic plate cannot be obtained; usable cutting equipment scope in this scheme is wider, and the triaxial or five water sword of can selecting to use in reality.
Therefore, the inventor carries out a first group of experiments, wherein the inspected object is the ceramic plate 1 with the same batch and the size of 900mm × 1800mm × 5.5mm, the ceramic plate 1 in the batch selected by the inventor is the ceramic plate 1 with more internal defects, the breakage rate in actual cutting processing is high, the cutting processing performance is convenient to inspect, the inventor randomly samples 120 ceramic plates in the ceramic plate 1 of the same batch, then divides 20 ceramic plates 1 into 5 groups (group 1, group 2, group 3, group 4 and group 5), each group comprises 30 ceramic plates, wherein the group 1 is an experimental group, the group 2, the group 3, the group 4 and the group 5 are reference groups, and the specific cutting process and parameters are as follows: the ceramic plate 1 is cut by adopting five-axis water jet cutting equipment, water and pomegranate sand are used as media, the shape number of the pomegranate sand is 80A, the diameter of a sand blasting opening is 1.02mm, the execution standard is JB/T8337-2012, the cutting rate is 1000mm/min, the pressure is 300Mpa, the ceramic plate 1 is horizontally placed on a water jet cutting platform for alignment, a designated graph 11 needing to be cut is input on a computer, and whether the ceramic plate 1 cracks or not is checked after the cutting is finished. The specific cutting designation pattern 11 is a zigzag curve as shown in fig. 1, and in the case where the designation pattern 11 is not changed, the size of the gap 12 between the designation pattern 11 and the edge of the ceramic plate 1 is adjusted, the gap 12 is 20mm, the cutting pattern of group 2 is shown in fig. 2, the designated pattern 11 and the edge of the ceramic plate 1 do not have the gap 12 (the gap 12 is 0), the cutting patterns of group 3, group 4 and group 5 are shown in fig. 3, fig. 4 and fig. 5, respectively, and the breakage rates of the above 5 groups are calculated, and the breakage rate is the number of cracked ceramic plates/the total number of ceramic plates × 100%, and table 1 is obtained.
TABLE 1 statistical table of breakage rates of the first set of experiments
| Group of | Gap/mm | Breakage rate/%) |
| |
20 | 76.7％ |
| Group 2 | 0 | 0 |
| Group 3 | 0 | 0 |
| Group 4 | 0 | 0 |
| Group 5 | 0 | 0 |
As can be seen from the test results in table 1, when the gap 12 between the designated pattern 11 and the edge of the ceramic plate 1 is zero (i.e. the designated pattern is cut from the outside to the inside of the ceramic plate 1), no matter what kind of zigzag curve the designated pattern takes, the breakage rate of the ceramic plate 1 is 0, and at this time, the possibility of cracking of the ceramic plate 1 cannot be determined; when the gap 12 is increased to 20mm, the breakage rate is increased. Therefore, the inspection method needs to specify the pattern 11 and set the gap 12 with the edge of the ceramic plate 1, and the finally obtained ceramic plate 1 has more accurate inspection effect on the cutting processability (breakage rate).
In an embodiment of the present application, the designated pattern 11 is a zigzag curve formed by connecting a plurality of sawteeth 111 end to end. The jagged curve is used as the designated pattern 11, and since it has a plurality of consecutive cutting inflection points, the inspection effect of the inspection method can be further improved.
For this purpose, the inventors performed a second set of experiments, which are respectively set as 6 to 11, wherein the number of batches (inspection objects), cutting processes and parameters of the ceramic plates 1 are consistent with those of the first set of experiments, the number of the ceramic plates 1 inspected by the set 6 to 11 is 30, the specific gap 12 is 20mm, only the designated figure 11 cut by each set of ceramic plates 1 is adjusted, and the specific cutting figures are shown in fig. 3 to 8, wherein the designated figure 11 of the set 6 is a straight line (two intersecting straight lines), the designated figure 11 of the set 7 is a triangle, the designated figure 11 of the set 8 is a rectangle, the designated figure 11 of the set 9 is a cross, the designated figure 11 of the set 10 is a meniscus, and the designated figure 11 of the set 11 is a pentagon, and calculated breakage rates of the 6 sets and compared with the set 1, thereby obtaining table 2.
TABLE 2 statistical table of the breakage rate of each group of the second group experiment
| Group of | Specifying graphics | Breakage rate/%) |
| |
Sawtooth shape | 76.7 |
| Group 6 | |
0 |
| Group 7 | |
12 |
| Group 8 | Rectangle | 6 |
| Group 9 | Cross-shaped | 8 |
| Group 10 | Crescent moon shape | 4 |
| |
Pentagonal | 20 |
As can be seen from the inspection results in table 2, when the designated pattern 11 changes, the obtained inspection results are inconsistent, and the obtained breakage rate is large only when the zigzag curve in the scheme is adopted as the designated pattern 11; when the designated graph 11 is changed into other shapes such as a triangle, a rectangle, a crescent or a cross, the detection result of the breakage rate is reduced, and the effect is poor; similarly, when the continuous designated pattern 11 is in a straight line shape, the finally measured breakage rate is 0, and the cutting processing performance of the ceramic plate 1 cannot be checked; when the designated graph selects the pentagon, the breakage rate is 20%, the cutting inflection point of the pentagon is still more, but the test effect of the zigzag curve in the scheme is still greatly reduced, and the test on the cutting processability of the ceramic plate is inconvenient. Therefore, the zigzag curve is selected as the designated pattern 11 for cutting in the present embodiment, and the result of checking the cutting workability of the ceramic plate 1 is good.
In one embodiment of the present application, the width of the gap 12 is 20mm or more. It can be known from the first set of experiments that the given pattern 11 needs to have a certain gap 12 with the edge of the ceramic plate 1, and particularly, the range of the gap 12 should be larger than 20mm, so that the obtained inspection result can be closer to the actual cutting processing performance of the ceramic plate 1 and has better accuracy.
In an embodiment of the present application, the given pattern 11 includes one of the zigzag curves, which passes through a diagonal line of the ceramic plate 1. The zigzag curves in this embodiment are not set at will, and when the zigzag curves are 1, the zigzag curves need to pass through the diagonal line of the ceramic plate 1, otherwise, the obtained breakage rate is still low, and the test of the cutting processability of the ceramic plate 1 cannot be performed.
To this end, the inventors performed a 3 rd set of tests including a set 12 in which the batch (test object) of the ceramic plate 1, the cutting process and parameters were identical to those of the first set of tests, the number of tests on the ceramic plate 1 of the set 12 was 30 pieces per set, and the specific cutting designation pattern 11 was a zigzag curve as shown in fig. 12, but the zigzag curve was parallel to the long side of the ceramic plate 1 and did not pass through the diagonal line of the ceramic plate 1, and the breakage rate of the set was calculated and compared with the set 1, and table 3 was obtained.
TABLE 3 statistical table of the breakage rate of each group of the third group experiment
| Group of | Mode of setting sawtooth curve | Breakage rate/%) |
| |
Diagonal through the ceramic plate | 76.7 |
| |
Parallel to the long sides of the ceramic plate | 6.7 |
As can be seen from the inspection results in table 3, when the designated pattern 11 is a single zigzag curve, the zigzag curve needs to pass through the diagonal line of the ceramic plate 1, and the resulting breakage rate is larger than the breakage rate of the ceramic plate 1, which can obviously reflect the cutting processability of the ceramic plate 1; after the arrangement position of the strip saw tooth 111-shaped line is changed, namely the strip saw tooth is parallel to the long edge of the ceramic plate 1 (passes through the central line of the ceramic plate), the obtained breakage rate is greatly reduced, and the strip saw tooth 111-shaped line cannot be used for testing the cutting processing performance of the ceramic plate 1. Therefore, when the designated pattern 11 in the present embodiment is a single sawtooth 111, the sawtooth-shaped curve needs to be defined to pass through the diagonal line of the ceramic plate 1, and the obtained inspection result is more accurate.
In an embodiment of the present application, the designated pattern 11 includes a plurality of zigzag curves, the zigzag curves are formed by connecting a plurality of teeth 111 end to end, and the zigzag curves do not intersect. In different embodiments of the scheme, the zigzag curves can be further arranged into a plurality of zigzag curves, when the plurality of zigzag curves are arranged, it is required to ensure that the zigzag curves are not intersected, otherwise, when the zigzag curves are cut to the intersection points of the zigzag curves in the cutting process, the ceramic plate 1 is easy to crack, and the inspection process has certain danger.
In an embodiment of the present application, a plurality of the saw-tooth curves are arranged in parallel on the ceramic plate 1. The designated pattern 11 includes two of the jagged curves.
When the designated pattern 11 is provided as a plurality of jagged curves, the respective jagged curves are arranged in parallel, and the overall effect of the inspection method can be further improved. For this purpose, the present embodiment has performed a fourth set of tests, including group 13, where the batch (test object), cutting process and parameters of the ceramic plate 1 are all the same as those of the first set of tests, the number of tests for the ceramic plate 1 of group 13 is 30, the specific cutting designation pattern 11 is two zigzag curves as shown in fig. 13, and the two zigzag curves are both parallel to the long side of the ceramic plate 1, and the breakage rate of the above-mentioned group is calculated and compared with group 1 to obtain table 4.
TABLE 4 statistical table of breakage rates of each group of the fourth group experiment
| Group of | Mode of setting sawtooth curve | Breakage rate/%) |
| |
Through the diagonal of the ceramic plate and with a gap to the edge of the ceramic plate | 76.7 |
| Group 13 | The two zigzag curves are parallel to the long edge of the ceramic plate | 80 |
As can be seen from the examination results in table 4, when the designated pattern 11 is two zigzag curves, and both the two zigzag curves are parallel to the long side of the ceramic plate 1, the breakage rate obtained in this way will be greater than the breakage rate of the ceramic plate 1, and the cutting processability of the ceramic plate can be better reflected.
In an embodiment of the present application, any side length L of the sawtooth 111 is 200-400 mm. The side length of the saw teeth 111 in the embodiment needs to be set to be large enough to avoid the situation that the defect position cut into the ceramic plate 1 cannot crack due to the fact that the side length is too small, the side length L is large enough to ensure that the tensile stress of the specified graph 11 is large, the ceramic plate 1 can crack when the defect position meets the defect position inside the ceramic plate 1, when the side length L of the saw teeth 111 is set to be 200-400mm, the inspection effect can be guaranteed, meanwhile, the ceramic plate 1 inspection device is suitable for inspection of ceramic plates 1 of different specifications, and when the specification of the ceramic plate 1 changes, the adaptability adjustment can be carried out within the range to ensure the inspection effect.
In an embodiment of the present application, the included angle θ of the saw teeth 111 is in a range of 5 ≦ θ <90 °. Sawtooth 111 in this scheme need inject 90 within ranges for arranging more densely between each sawtooth 111, the testing result is more accurate, should this contained angle theta more than or equal to 5 in addition, cutting process is more convenient, and contained angle theta is too little, in the regional inconvenient processing near the nodical arbitrary both sides of sawtooth 111 are nodical. When the designated pattern 11 is two zigzag curves, the included angle θ of the serrations 111 of the two zigzag curves may be set in various manners, as shown in fig. 13, the included angle θ 1 of the first serration 111 may be set to 30 °, 40 °, or 60 °, etc., the included angle θ 2 of the other serration 111 may be set to 25 °, 45 °, or 65 °, etc., and θ 1 and θ 2 may be the same or different.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications and equivalents of the technical solutions that can be directly or indirectly applied to other related fields without departing from the spirit of the present application are intended to be included in the scope of the present application.
Claims (8)
1. The method for testing the cutting processability of the ceramic plate is characterized by comprising the following steps of: checking whether the ceramic plate (1) cracks or not after a specified pattern (11) is cut inside the ceramic plate (1) by using a cutting device;
the edge of the designated figure (11) has a gap (12) with the outer edge of the ceramic plate (1);
the designated pattern (11) is a zigzag curve formed by connecting a plurality of sawteeth (111) end to end.
2. The method for inspecting the cutting workability of the ceramic plate according to claim 1, wherein the width of the gap (12) is not less than 20 mm.
3. The method for testing the cutting workability of ceramic slabs according to claim 1, wherein said given pattern (11) comprises one of said zigzag curves which crosses a diagonal line of said ceramic slab (1).
4. The method for testing the cutting workability of ceramic plate material according to claim 1, wherein the prescribed pattern (11) includes a plurality of the jagged curves, and each of the jagged curves does not intersect.
5. The method for testing the cutting workability of ceramic boards according to claim 4, wherein a plurality of the saw-tooth curves are arranged in parallel on the ceramic board (1).
6. The method for testing the cutting workability of ceramic plate material according to claim 4, wherein said prescribed pattern (11) includes two of said jagged curves.
7. The method for testing the cutting processability of the ceramic plate according to claim 1, wherein any side length L of the saw teeth (111) is 200-400 mm.
8. The method for inspecting cutting workability of ceramic plate material according to claim 1, wherein the included angle θ of the saw teeth (111) is in the range of 5 ° θ <90 °.
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| CN105758631A (en) * | 2016-04-29 | 2016-07-13 | 成都惠锋金刚石工具有限公司 | Method for testing cutting performance of diamond saw blade |
| CN110919203A (en) * | 2019-12-02 | 2020-03-27 | 东莞信柏结构陶瓷股份有限公司 | Ceramic surface pattern processing method, ceramic and electronic equipment shell |
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2021
- 2021-01-27 CN CN202110122409.0A patent/CN112945848A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105758631A (en) * | 2016-04-29 | 2016-07-13 | 成都惠锋金刚石工具有限公司 | Method for testing cutting performance of diamond saw blade |
| CN110919203A (en) * | 2019-12-02 | 2020-03-27 | 东莞信柏结构陶瓷股份有限公司 | Ceramic surface pattern processing method, ceramic and electronic equipment shell |
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| 潘炳宇 等: "建立陶瓷板切割性能内控标准与加工指引的探讨", 《标准与检测》 * |
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