CN115650741B - High-temperature-resistant material for laser cutting equipment and preparation method thereof - Google Patents
High-temperature-resistant material for laser cutting equipment and preparation method thereof Download PDFInfo
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- CN115650741B CN115650741B CN202211297306.9A CN202211297306A CN115650741B CN 115650741 B CN115650741 B CN 115650741B CN 202211297306 A CN202211297306 A CN 202211297306A CN 115650741 B CN115650741 B CN 115650741B
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- 239000000463 material Substances 0.000 title claims abstract description 58
- 238000003698 laser cutting Methods 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 28
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 25
- 239000010703 silicon Substances 0.000 claims abstract description 25
- 239000002002 slurry Substances 0.000 claims abstract description 22
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 12
- 239000004576 sand Substances 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 11
- 239000011398 Portland cement Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 230000015271 coagulation Effects 0.000 claims abstract description 8
- 238000005345 coagulation Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 20
- 239000011819 refractory material Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 7
- 230000008646 thermal stress Effects 0.000 abstract 1
- 239000011449 brick Substances 0.000 description 20
- 238000003756 stirring Methods 0.000 description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 229910001018 Cast iron Inorganic materials 0.000 description 11
- 239000000499 gel Substances 0.000 description 11
- 239000002893 slag Substances 0.000 description 10
- 229910000975 Carbon steel Inorganic materials 0.000 description 7
- 239000010962 carbon steel Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
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- 239000002994 raw material Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
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- 239000003469 silicate cement Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
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- 238000003892 spreading Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
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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
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention relates to the technical field of laser cutting, in particular to a high-temperature-resistant material for laser cutting equipment and a preparation method thereof. The preparation method of the high-temperature resistant material comprises the following steps: (1) 50 to 65 weight parts of bauxite, 5 to 15 weight parts of Portland cement, 5 to 15 weight parts of fireproof sand and 10 to 20 weight parts of Al 2 O 3 Uniformly mixing the powder with 5-15 parts by weight of water to obtain slurry; (2) Laying a high-temperature-resistant steel wire mesh in a mould, pouring the slurry into the mould, and drying and forming in a constant-temperature environment to obtain a composite silicon coagulation anti-burning plate; (3) Sprinkling water to the composite silicon gel anti-burning plate once every 8 hours within 32-72 hours after molding; and (4) demolding to obtain the high-temperature-resistant material. The high-temperature-resistant material provided by the invention can better protect laser cutting equipment, reduce the influence degree of thermal stress, reduce the deformation of the lathe bed and improve the cutting accuracy.
Description
Technical Field
The invention relates to the technical field of laser cutting, in particular to a high-temperature-resistant material for laser cutting equipment and a preparation method thereof.
Background
In the wide application of the processing and cutting field, the development speed of the laser cutting technology is increasing. The laser cutting power is gradually developed from low power to high power, and the thickness of the cut metal sheet is gradually developed from several millimeters to tens or even hundreds of millimeters. Although the laser cutting industry is well developed, the current lack of attention to the protection of the laser cutting equipment lathe bed is generally insufficient, and the research on high-temperature resistant materials for laser cutting equipment cannot keep pace with the rapid development of laser cutting, so that expensive laser cutting equipment is damaged, and great loss is caused to enterprises.
At present, high-temperature resistant materials used in the laser cutting industry mainly comprise high-aluminum refractory bricks, graphite plates, cast iron plates and carbon steel plates. Although the high-alumina refractory brick is formed by high-temperature firing, the high-alumina refractory brick has excellent temperature resistance, but the defects are also very obvious. High alumina refractory bricks are generally fixed in size (230 mm. Times.114 mm. Times.20 mm) and cannot be adjusted to the desired dimensions; under the condition of ensuring the thickness of the refractory brick, the refractory brick is widened, difficult to form, and the problems of cracking, breakage and the like are more likely to occur in the firing process, in the laser cutting industry, laser cutting equipment is often larger, so that the area of a lathe bed to be protected is also larger, a large number of refractory bricks are required to be assembled, gaps between the refractory bricks are more and wider, and when a large amount of metal residues are splashed on the surface of the refractory bricks, the metal solution is likely to flow into the gaps to wrap the refractory bricks, so that slag removal is difficult. Although the graphite plate can play roles in heat insulation and heat conduction, the graphite plate is fragile and needs to be replaced frequently due to poor fracture toughness. Although the metal cast iron plate and the carbon steel plate make up for the fragile defect of the graphite plate, the temperature is too high in the laser cutting process, the cast iron plate and the carbon steel plate are easy to melt and are mutually fused with metal residues, and the cast iron plate and the carbon steel plate form a whole after being cooled and are difficult to separate; moreover, the cast iron plate and the carbon steel plate are seriously affected by heat, and are easy to deform seriously under the working condition for a long time, so that the effect of the cast iron plate and the carbon steel plate is affected.
Therefore, the high-temperature resistant material which can be customized in size, is easy to remove slag and has excellent high-temperature resistance and the preparation method thereof have important significance for the laser cutting industry.
Disclosure of Invention
Aiming at the technical problems that the existing high-temperature resistant material can not simultaneously meet the performance requirements of the laser industry in the aspects of size customization, easy cleaning, high temperature resistance, laser breakdown prevention, excellent stability and the like, the invention provides the high-temperature resistant material for laser cutting equipment and the preparation method thereof, and the characteristics of incompatibility of the metal material and the inorganic nonmetallic material in physical and chemical properties are utilized, so that the high-temperature resistant material is difficult to form stable combination with metal residues when in use; by utilizing the obvious difference of the thermal expansion coefficients of the metal material and the inorganic nonmetallic material, the laser cutting process is actually a process of continuously heating and cooling the inorganic nonmetallic material and the metal material. In summary, the inorganic nonmetallic based high-temperature resistant material provided by the invention ensures that metal residues are convenient to clean, and compared with metal materials, the high-temperature resistant material has smaller thermal expansion coefficient and more excellent capability of isolating heat influence, so that laser cutting equipment can be better protected, the degree of influence of heat stress is reduced, the deformation of a lathe bed is reduced, and the cutting accuracy is improved.
In a first aspect, the present invention provides a method for preparing a high temperature resistant material for a laser cutting apparatus, comprising the steps of:
(1) 50 to 65 weight parts of bauxite, 5 to 15 weight parts of Portland cement, 5 to 15 weight parts of fireproof sand and 10 to 20 weight parts of Al 2 O 3 Uniformly mixing the powder with 5-15 parts by weight of water to obtain slurry;
(2) Laying a high-temperature-resistant steel wire mesh in a mould, pouring the slurry into the mould, and drying and forming in a constant-temperature environment to obtain a composite silicon coagulation anti-burning plate;
(3) Sprinkling water to the composite silicon gel anti-burning plate once every 8 hours within 32-72 hours after molding, and improving the hydration process of the composite silicon gel anti-burning plate to improve the material strength;
(4) And demolding to obtain the high-temperature-resistant material.
Further, bauxite is Al 2 O 3 Special bauxite with the content of more than 85 percent.
Further, bauxite with large, medium and small particle sizes is prepared from bauxite according to a ratio of 4:4:2, and mixing the components according to the mass ratio.
Further, step (1) comprises the steps of bauxite, silicate cement, fireproof sand and Al 2 O 3 Placing the powder and water into a stirrer, and stirring at a rotation speed of 200-500r/min for 10-60min, wherein the stirring at the rotation speed can fully break and recombine chemical bonds to generate an equilibrium state.
Furthermore, the mould is designed according to the size of the high-temperature resistant material required by the laser cutting equipment, and the periphery of the mould is provided with a detachable baffle plate, so that the mould is convenient to demould.
Further, in the step (2), the high-temperature-resistant steel wire mesh is laid flat at the middle position in the thickness direction of the die.
Further, in the step (2), after the slurry is poured into a die, the slurry is firstly trowelled by a trowelling knife, then the slurry is vibrated on a vibrating table, the compactness of the material is improved, holes of a finished product are reduced, and the surface which does not meet the horizontal requirement is trowelled after the slurry is vibrated. The casting slurry must vibrate sufficiently to ensure that the gas in the slurry is sufficiently expelled, the internal structure is uniform, and bubble-shaped dry particles are not allowed to appear on the surface.
And (3) after the water spraying is finished, continuing to stand, and demolding.
In a second aspect, the present invention provides a high temperature resistant material for a laser cutting apparatus produced by the above-mentioned production method, the main components of the high temperature resistant material being a composite siliceous material, that is, an aluminum-containing oxide and a silicon-containing oxide, the aluminum-containing oxide including bauxite of various grades, aluminum oxide powder, the silicon-containing oxide including silicon dioxide or a solid containing silicon dioxide, such as: silica powder, portland cement, fire sand, and the like.
The invention has the beneficial effects that: the bauxite and the fireproof sand used in the invention have high melting points, and the bauxite and the fireproof sand are used as main forming substances in the material, so that the material can be ensured to have higher fire resistance; silicate cement is a substance which is formed by firing limestone, clay (aluminosilicate), iron ore and gypsum serving as main components at high temperature, has good adhesiveness, adsorptivity and lubricity, and is used as a binder in the material; al (Al) 2 O 3 The melting point of the material is 2054 ℃, the refractive index is high, the high-temperature stability is good, the reflection performance of the material can be improved, the material can be combined with silicon-containing solid, the fracture toughness, the heat conductivity and the high-temperature resistance of the material are greatly improved, and in addition, the Al 2 O 3 The powder has a larger wetting angle, so that the binding force between the metal slag and the composite silicon coagulation anti-burning plate in the later period can be reduced, slag removal is facilitated, and the experience of customers is improved; the high-temperature-resistant steel wire mesh is used as a structural framework of the composite silicon coagulation anti-burning plate, so that the strength of a material can be increased, the problem of brittleness caused by large brittleness of the material is avoided, the material is further ensured to be cracked continuously, and the high-temperature resistance and the laser resistance of the material are ensured not to be influenced. These raw materials cooperate with each other and act synergistically, gramThe technical problems that the strength, toughness, high temperature resistance and laser breakdown resistance of the existing anti-burning material are difficult to meet the use requirements simultaneously are solved, so that the composite silicon coagulation anti-burning plate has firm structure, high strength, high temperature resistance and good heat conduction performance, a laser device lathe bed can be effectively protected from being influenced by high temperature, the service life of the lathe bed is prolonged, and the accuracy of cutting processing is improved. When the usage amount of each component of the slurry exceeds the corresponding range defined by the invention, the fluidity of the slurry changes, which can lead to the decrease of the binding force between the high temperature resistant materials and further influence the anti-burning performance. And as most of the raw materials of the high-temperature resistant material are inorganic materials, no special smell is generated in the high-temperature environment, no dense smoke or harmful gas is generated, and no harm is generated to operators.
The preparation method of the high-temperature-resistant material used on the laser cutting equipment is convenient to operate, simple in equipment, low in cost for enterprises and suitable for actual production requirements.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic illustration of the results of a composite set of silica gel burn-out prevention plate of the present invention.
FIG. 2 is a photograph of the surface morphology of the high temperature resistant material of example 1 of the present invention.
FIG. 3 is a photograph of the surface morphology of the high temperature resistant material of example 1 of the present invention after 10 days of use on a laser cutting apparatus.
FIG. 4 is a photograph of the surface morphology of the high temperature resistant material of example 2 of the present invention after 10 days of use on a laser cutting apparatus.
FIG. 5 is a photograph of the surface morphology of the high temperature resistant material of example 3 of the present invention after 10 days of use on a laser cutting apparatus.
FIG. 6 is a photograph of the surface morphology of the high temperature resistant material of example 4 of the present invention after 10 days of use on a laser cutting apparatus.
FIG. 7 is a photograph of the surface morphology of the high temperature resistant material of example 5 of the present invention after 10 days of use on a laser cutting apparatus.
FIG. 8 is a photograph of the surface morphology of the high temperature resistant material of example 6 of the present invention after 10 days of use on a laser cutting apparatus.
In the figure, a 1-composite silicon gel material and a 2-high temperature resistant steel wire mesh are adopted.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
A method for preparing a high temperature resistant material for a laser cutting device, comprising the steps of:
(1) Three kinds of special-grade bauxite (Al) with large (1.5-3.5 mm), medium (0.5-1.5 mm) and small (0.074-0.5 mm) particle sizes are weighed according to the mass ratio of 4:4:2 2 O 3 50-65 parts by weight of the total of more than 85 percent are put into a stirrer, 5-15 parts by weight of Portland cement, 5-15 parts by weight of fireproof sand and 10-20 parts by weight of Al are weighed 2 O 3 Placing the powder and 5-15 parts by weight of water into a stirrer, stirring at a rotating speed of 200-500r/min for 10-60min, and uniformly mixing the components to obtain slurry;
(2) Spreading a high-temperature-resistant steel wire mesh in the middle of a mould, enabling the distance between the high-temperature-resistant steel wire mesh and the upper and lower surfaces of the mould to be 10mm respectively, pouring the slurry into the mould uniformly, trowelling the slurry by using a trowelling knife, vibrating on a vibrating table, trowelling the surface which does not meet the horizontal requirement after vibrating, then drying in a constant-temperature environment, and waiting for forming to obtain the composite silicon coagulation anti-burning plate;
(3) After casting molding, sprinkling water to the composite silicon condensation anti-burning plate once every 8 hours within 32-72 hours;
(4) Standing for a period of time, and demolding to obtain the composite silicon gel anti-burning plate, wherein the structure of the composite silicon gel anti-burning plate is shown in figure 1.
The refractory materials for laser cutting apparatuses (examples 1 to 6) were produced according to the above-described preparation methods, the proportions of the slurry components of each example are shown in table 1 below, and the process parameters are shown in table 2 below.
Table 1 slurry composition ratios (unit: parts by weight) of examples
| Component (A) | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 |
| Special grade bauxite | 50 | 60 | 60 | 60 | 50 | 50 |
| Portland cement | 15 | 15 | 10 | 15 | 15 | 15 |
| Fireproof sand | 5 | 5 | 5 | 10 | 5 | 5 |
| Al 2 O 3 Powder | 10 | 10 | 10 | 15 | 10 | 10 |
| Water and its preparation method | 10 | 10 | 5 | 10 | 10 | 10 |
Table 2 process parameters of the examples
| Process parameters | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 |
| Stirring speed (r/min) | 300 | 300 | 300 | 300 | 200 | 500 |
| Stirring time (min) | 30 | 30 | 30 | 30 | 60 | 10 |
| Vibration time (min) | 10 | 10 | 10 | 10 | 15 | 10 |
| Number of times of sprinkling (secondary) | 6 | 6 | 6 | 6 | 6 | 4 |
| Standing time (h) | 96 | 96 | 96 | 96 | 96 | 72 |
It can be seen that the preparation methods employed in examples 1-4 are consistent, with the differences being primarily in the slurry composition ratios. The fraction of extra bauxite used in example 2 was increased compared to example 1; example 3 has a reduced part of portland cement to water compared to example 2; example 4 compared to example 2, example 4 is directed to fire-resistant sand and Al 2 O 3 The fraction of powder is increased. Examples 5 and 6 were consistent with scheme 1 in terms of raw materials and were adjusted in terms of preparation method. Example 5 is mainly different from example 1 in that the stirring speed is reduced, and the stirring time and the vibration time are prolonged; example 6 differs greatly from the other examples in that the stirring speed is increased, the stirring time is shortened, the number of times of sprinkling is reduced, the standing time is shortened, and the time is shortened as a whole.
The test of the related performances of the refractory bricks and cast iron plates in examples 1-6 and the prior art is carried out under the conditions that the refractory materials are placed on a machine tool body of laser cutting equipment, the laser cutting equipment simulates a normal cutting environment, the cutting power is varied from 6 kW to 22kW, the carbon steel plates, the stainless steel plates, the aluminum plates or the copper plates with different thicknesses are respectively cut, the equipment is normally operated for 10 working days, and the surface morphology, the slag removal difficulty, the damage condition and the like of the test materials are observed and recorded. The results are shown in FIGS. 2-8 and Table 3 below.
TABLE 3 results of Performance test of refractory brick and cast iron plate for each example
It can be seen that the refractory brick breaks during the test process due to the fact that the refractory brick has low thermal conductivity, when the refractory brick is subjected to rapid cooling and rapid heating, the surface and the interior of the refractory brick have temperature differences, the temperature gradient in the brick body is large, stress is generated in the brick body due to the existence of differential expansion, the strength of the refractory brick is relatively low, and the refractory brick breaks after the stress is accumulated to a certain degree. The difficulty in slag removal of the cast iron plate is mainly caused by the fact that the cast iron plate is rapidly melted by intense laser energy, and the cut metal slag is rapidly combined with the melted cast iron plate, so that a unified whole is formed under the rapid cooling and rapid heating environment, and slag removal is difficult.
Comparative analyses were further performed on examples 1-6.
Comparative example 1 and example 2 clearly reflect the slight drop-off of the composite silicon gel burn-out prevention plate in fig. 3, and a small amount of trace burned by the laser was also seen, which is a trace left by the laser cutting apparatus at the instant of cutting through the plate. The laser cauterization phenomenon of fig. 4 was found to be more pronounced compared to fig. 4, but no sloughing occurred. This demonstrates that the composite silicone gel burn-out prevention plate of example 2 is less resistant to instantaneous temperatures than example 1, but has more excellent durable temperature resistance.
Comparative example 2 and example 3, as shown in the circles of fig. 5, there is still a part of laser burning trace left by laser cutting, but no peeling phenomenon of the composite silicon gel burn-out prevention plate was found. This means that the proper reduction of the addition of Portland cement and water does not affect the high temperature resistance of the composite burn-in board.
Comparative example 2 and example 4, with fire sand and Al 2 O 3 The amount of the additive is increased, and the fire resistance of the material is obtainedIncrease Al 2 O 3 The composite silicon gel anti-burning plate and the metal residue solution are harder to combine by virtue of a larger wetting angle, the binding force is smaller, slag removal is simple, no falling phenomenon exists, and feedback can be obtained in fig. 6.
Comparative example 1 and examples 5 and 6, whether the stirring speed was increased, the stirring time was shortened, or the stirring speed was decreased, and the stirring time was prolonged, had a certain effect on the composite silicon setting anti-burn plate, but did not affect the protection of the laser cutting equipment. In combination with tables 1 and 2 and fig. 7 and 8, it was found that rapid stirring and compression stirring time resulted in insufficient stirring, and the destruction and recombination of chemical bonds did not reach an ideal level, so that a slight falling-off phenomenon was found in fig. 8, which resulted from insufficient stability of the bonding. Similarly, when the stirring speed is slower and the stirring time is too long, chemical bonds are completely destroyed in the stirring process, and the binding force of the chemical bonds is relatively strong, so that the composite silicon coagulation anti-burning plate produced by the process is not easy to fall off, but the whole time is increased.
The residue cleaning processes of examples 1 to 6 were all very smooth, because the difference in thermal expansion coefficients between the metal residue and the composite set-point anti-burn plate was large, and a gap was gradually formed between the metal slag and the composite set-point anti-burn plate in repeated rapid cooling and rapid heating environments, and as time increased, the gap tended to expand, and when the gap reached a certain extent, the metal was gently pried with a flat tool (such as a flat-nose screwdriver), and was easily and conveniently separable. In addition, no special smell is generated in the high-temperature environment, no dense smoke or harmful gas is generated, and no harm is generated to the body and mind of operators.
In summary, the composite silicon gel anti-burning plate prepared in embodiments 1-6 overcomes the technical problems that the strength, toughness, high temperature resistance and laser breakdown resistance of the existing anti-burning material are difficult to meet the use requirements, so that the composite silicon gel anti-burning plate has firm structure, high strength, high temperature resistance and good heat conduction performance, and can effectively protect a laser equipment lathe bed from being influenced by high temperature.
Although the present invention has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present invention is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and it is intended that all such modifications and substitutions be within the scope of the present invention/be within the scope of the present invention as defined by the appended claims.
Claims (6)
1. The preparation and use method of the high-temperature-resistant material for the laser cutting equipment is characterized in that the high-temperature-resistant material is placed on a machine tool body of the laser cutting equipment when in use, and the preparation method of the high-temperature-resistant material comprises the following steps:
(1) 50 to 65 weight parts of bauxite, 5 to 15 weight parts of Portland cement, 5 to 15 weight parts of fireproof sand and 10 to 20 weight parts of Al 2 O 3 Uniformly mixing the powder with 5-15 parts by weight of water to obtain slurry;
wherein, the bauxite has three particle sizes of 1.5-3.5mm, 0.5-1.5mm in the middle and 0.074-0.5mm in the small according to the following weight ratio of 4:4:2, a mass ratio of the compound mixture;
(2) Laying a high-temperature-resistant steel wire mesh in a mould, pouring the slurry into the mould, and drying and forming in a constant-temperature environment to obtain a composite silicon coagulation anti-burning plate;
(3) Sprinkling water to the composite silicon gel anti-burning plate once every 8 hours within 32-72 hours after molding;
(4) And demolding to obtain the high-temperature-resistant material.
2. The method for preparing and using the high temperature resistant material according to claim 1, wherein the bauxite is Al 2 O 3 Special bauxite with the content of more than 85 percent.
3. The method for preparing and using the refractory material according to claim 1, wherein the step (1) comprises the steps of adding bauxite, portland cement, fire-proof sand and Al 2 O 3 Placing the powder and water under stirringStirring at 200-500r/min for 10-60min.
4. The method of preparing and using a refractory material according to claim 1, wherein in step (2), the refractory steel wire mesh is laid flat at an intermediate position in the thickness direction of the mold.
5. The method of preparing and using a refractory material according to claim 1, wherein in step (2), after pouring the slurry into a mold, the slurry is smoothed by a spatula, and then vibrated on a vibrating table, and the surface which does not meet the level requirement is smoothed again after the vibration.
6. The method of claim 1, wherein step (4) is to continue to stand after the sprinkling is completed and then to release the mold.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07137183A (en) * | 1993-11-12 | 1995-05-30 | Tokiwa Electric Co Ltd | Laminated panel |
| CN101434490A (en) * | 2008-09-28 | 2009-05-20 | 瑞泰科技股份有限公司 | Composite fire resistant pouring material |
| CN102584155A (en) * | 2011-12-22 | 2012-07-18 | 东莞市恒和节能科技有限公司 | Inorganic heat-insulating fireproof plate and manufacturing method thereof |
| CN104446272A (en) * | 2014-12-03 | 2015-03-25 | 柳州市共和耐火材料有限公司 | Production process of plastic refractory |
| CN104909768A (en) * | 2015-05-29 | 2015-09-16 | 柳州普亚贸易有限公司 | Heat insulating refractory brick |
| CN106747122A (en) * | 2017-01-23 | 2017-05-31 | 裕民县瑞通市政工程有限公司 | A kind of light cellular partition board and preparation method thereof |
| WO2021204210A1 (en) * | 2020-04-09 | 2021-10-14 | 厦门大学 | Micro-nano material series products with cement and "three wastes" as raw materials, and synthesis process therefor |
-
2022
- 2022-10-21 CN CN202211297306.9A patent/CN115650741B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07137183A (en) * | 1993-11-12 | 1995-05-30 | Tokiwa Electric Co Ltd | Laminated panel |
| CN101434490A (en) * | 2008-09-28 | 2009-05-20 | 瑞泰科技股份有限公司 | Composite fire resistant pouring material |
| CN102584155A (en) * | 2011-12-22 | 2012-07-18 | 东莞市恒和节能科技有限公司 | Inorganic heat-insulating fireproof plate and manufacturing method thereof |
| CN104446272A (en) * | 2014-12-03 | 2015-03-25 | 柳州市共和耐火材料有限公司 | Production process of plastic refractory |
| CN104909768A (en) * | 2015-05-29 | 2015-09-16 | 柳州普亚贸易有限公司 | Heat insulating refractory brick |
| CN106747122A (en) * | 2017-01-23 | 2017-05-31 | 裕民县瑞通市政工程有限公司 | A kind of light cellular partition board and preparation method thereof |
| WO2021204210A1 (en) * | 2020-04-09 | 2021-10-14 | 厦门大学 | Micro-nano material series products with cement and "three wastes" as raw materials, and synthesis process therefor |
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