CN115323218B - Light high-strength snow shoveling sheet and preparation method thereof - Google Patents
Light high-strength snow shoveling sheet and preparation method thereof Download PDFInfo
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- CN115323218B CN115323218B CN202210980508.7A CN202210980508A CN115323218B CN 115323218 B CN115323218 B CN 115323218B CN 202210980508 A CN202210980508 A CN 202210980508A CN 115323218 B CN115323218 B CN 115323218B
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- strength
- cobalt
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- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 238000000498 ball milling Methods 0.000 claims abstract description 26
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000010941 cobalt Substances 0.000 claims abstract description 23
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 23
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910039444 MoC Inorganic materials 0.000 claims abstract description 20
- QIJNJJZPYXGIQM-UHFFFAOYSA-N 1lambda4,2lambda4-dimolybdacyclopropa-1,2,3-triene Chemical compound [Mo]=C=[Mo] QIJNJJZPYXGIQM-UHFFFAOYSA-N 0.000 claims abstract description 17
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 17
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000010936 titanium Substances 0.000 claims abstract description 16
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 13
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000005245 sintering Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000012188 paraffin wax Substances 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 5
- 125000003158 alcohol group Chemical group 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000000956 alloy Substances 0.000 abstract description 13
- 229910045601 alloy Inorganic materials 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052721 tungsten Inorganic materials 0.000 abstract description 4
- 239000010937 tungsten Substances 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract description 2
- 230000000996 additive effect Effects 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical compound [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 229910003296 Ni-Mo Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910002110 ceramic alloy Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- ZGDWHDKHJKZZIQ-UHFFFAOYSA-N cobalt nickel Chemical compound [Co].[Ni].[Ni].[Ni] ZGDWHDKHJKZZIQ-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/12—Metallic powder containing non-metallic particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
Abstract
The application relates to the technical field of hard alloy, and discloses a light high-strength snow shovel which aims at the problems of small strength, high production difficulty and high cost of the existing snow shovel alloy material and needs to consume a large amount of rare metal resources such as tungsten, and the like, and comprises the following components: 10-15% of tungsten carbide, 20-25% of nickel powder, 5-10% of cobalt, 2-5% of molybdenum carbide, 0.05-1.5% of thorium dioxide and the balance of titanium carbonitride; the preparation method of the light high-strength snow shoveling slice comprises the following steps: s1, mixing the components according to mass fractions, and ball-milling to obtain a premix I; s2, drying the premix I, and removing a ball milling medium to obtain a mixture II; and S3, sintering the mixture II at a high temperature of 1500-1550 ℃ to obtain the snow shovel. The snow shovel slice of the application adopts tungsten carbide and titanium carbonitride as the framework, cobalt and nickel as the binding phase, thorium dioxide and molybdenum carbide as the additive, and can be made into hard alloy snow shovel slice with high strength and good comprehensive performance.
Description
Technical Field
The invention relates to the technical field of hard alloy, in particular to a light high-strength snow shoveling sheet and a preparation method thereof.
Background
In ice and snow weather, in order to ensure travel safety, snow and snow deposited on the road surface need to be cleaned by a snow shoveling tool. Common snow shoveling tools include snow shovels, snow removers and the like, wherein snow shoveling sheets are used for shoveling ice and snow, and are made of tungsten-cobalt alloy. However, the snow shoveling sheet commonly used at present has the following problems: the snow shoveling sheet prepared from the ceramic alloy has strong wear resistance, lighter weight, low strength and fragility, namely the snow shoveling effect is poor; the snow shoveling sheet prepared from the coarse-grained hard alloy has strong impact toughness and can be used for a long time, but has high density, single weight and high production cost, and consumes a large amount of rare metals such as tungsten.
Therefore, there is an urgent need for a lightweight, strong snow shovel.
Disclosure of Invention
The invention aims to solve the technical problems that:
At present, the common snow shoveling sheet prepared from the alloy has the problems of poor snow shoveling effect caused by small snow shoveling strength or high production difficulty caused by scarcity of partial metal component resources in the preparation raw materials, high production cost and great consumption of scarcity metal resources such as tungsten.
The invention adopts the technical scheme that:
The invention provides a light high-strength snow shovel which comprises the following components in percentage by mass: 10-15% of tungsten carbide, 20-25% of nickel powder, 5-10% of cobalt, 2-5% of molybdenum carbide, 0.05-1.5% of thorium dioxide and the balance of titanium carbonitride.
Preferably, the molybdenum carbide is prepared by the following components in percentage by mass: nickel powder = 1:6-11.
Preferably, the composition comprises the following components in mass fraction: 12% of tungsten carbide, 20% of nickel powder, 10% of cobalt, 2.2% of molybdenum carbide, 0.3% of thorium dioxide and 55.5% of titanium carbonitride.
Preferably, the composition comprises the following components in mass fraction: 12% of tungsten carbide, 22% of nickel powder, 8% of cobalt, 5% of molybdenum carbide, 1% of thorium dioxide and 52% of titanium carbonitride.
Preferably, tungsten carbide fsss=12-22 μm, nickel powder Fsss is less than or equal to 1.0 μm.
The preparation method of the light high-strength snow shoveling slice comprises the following steps:
S1, mixing the components according to mass fractions, and ball-milling to obtain a premix I;
s2, drying the premix I, and removing a ball milling medium to obtain a mixture II;
and S3, sintering the mixture II at a high temperature of 1500-1550 ℃ to obtain the snow shovel.
Preferably, in the step S1, a forming agent, a ball milling medium and a ball milling body are added in the ball milling process, and the ball milling time is 20-25h.
Preferably, the forming agent is one or more of paraffin, rubber, PEG and SD, and the ball milling medium is alcohol or hexane.
Preferably, in step S3, the mixture ii is pressed and vacuum degummed before sintering at high temperature.
Preferably, the cobalt magnetism is measured, and the mass fraction of the magnetic bonding phase is calculated as follows:
magnetic binding phase% = cobalt magnetic/(cobalt content +0.35 x nickel powder content-molybdenum carbide content);
When in vacuum degumming, the mass fraction of the magnetic bonding phase is controlled to be 70-80%.
The invention adopts the technical mechanism and has the beneficial effects that:
Tungsten carbide and titanium carbonitride are used as skeletons, cobalt nickel is used as a binding phase, thorium dioxide and molybdenum carbide are used as additives. The titanium carbonitride technical ceramic has strong stability and better comprehensive performance, and can form an unbalanced solid solution with titanium carbonitride after being added with molybdenum carbide, and the outer layers of grains are rich in molybdenum carbide, so that the wettability of a framework material and a binding phase can be enhanced; after the tungsten carbide is added, the tungsten carbide and the titanium carbonitride can form WC-TiC solid solution, so that the comprehensive performance of the material is improved; thorium dioxide can strengthen Ni-Mo binding phase and further improve alloy strength. On the basis of greatly reducing the dosage of tungsten, the light high-strength snow shoveling sheet which can achieve the effect similar to that of the traditional high-tungsten-content snow shoveling sheet is obtained.
Drawings
FIG. 1 is a schematic view of the snow blade of example 1 at 1000 times magnification;
fig. 2 is a schematic view of the snow shoveling sheet of example 2 at 1000 times magnification.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
The invention provides a light high-strength snow shovel which is characterized by comprising the following components in percentage by mass: 10-15% of tungsten carbide, 20-25% of nickel powder, 5-10% of cobalt, 2-5% of molybdenum carbide, 0.05-1.5% of thorium dioxide and the balance of titanium carbonitride;
wherein, according to the mass ratio, molybdenum carbide: nickel powder = 1:6-11.
In the invention, tungsten carbide Fsss=12-22 mu m, nickel powder Fsss is less than or equal to 1.0 mu m, and titanium carbonitride Fsss=2.7 mu m.
The invention also provides a preparation method of the light high-strength snow shovel slice, which is characterized by comprising the following steps:
s1, mixing the components according to mass fractions, adding a forming agent, a ball milling medium and a ball milling body, and ball milling for 20-25 hours to obtain a premix I;
s2, drying the premix I, and removing a ball milling medium to obtain a mixture II;
S3, pressing the mixture II, degumming in vacuum, and sintering at a high temperature of 1500-1550 ℃ to obtain snow shoveling sheets;
Wherein the shaping agent is one or more of paraffin, rubber, PEG and SD, and the addition amount of the shaping agent is 1.5-2.5% of the weight of the ingredients; the ball milling medium is alcohol or hexane, and the adding amount of the ball milling medium is 250-400mL/kg; the ball milling body can be selected from common grinding balls, etc., and the adding amount of the ball milling body is 3-5kg/1kg of raw materials; and (3) measuring cobalt magnetism, and calculating the mass fraction of the magnetic bonding phase, wherein the mass fraction of the magnetic bonding phase is calculated according to the following formula:
magnetic binding phase% = cobalt magnetic/(cobalt content +0.35 x nickel powder content-molybdenum carbide content);
When in vacuum degumming, the mass fraction of the magnetic bonding phase is controlled to be 70-80%. The cobalt magnetism is measured value of cobalt in the raw material by adopting a cobalt magnetism measuring instrument, the cobalt content refers to cobalt content in the raw material component, the nickel powder content refers to nickel powder content in the raw material component, and the molybdenum carbide content refers to molybdenum carbide content in the raw material component.
< Example >
Example 1
As shown in fig. 1, the embodiment provides a light high-strength snow shovel, which comprises the following components in percentage by mass: 12% of tungsten carbide, 20% of nickel powder, 10% of cobalt, 2.2% of molybdenum carbide, 0.3% of thorium dioxide and 55.5% of titanium carbonitride;
wherein tungsten carbide fsss=22 μm, nickel powder fsss=0.92 μm, titanium carbonitride fsss=2.7 μm.
The embodiment also provides a preparation method of the light high-strength snow shoveling slice, which comprises the following steps:
s1, mixing the components according to mass fractions, adding 2% by weight of paraffin, hexane and grinding balls, and ball milling for 25 hours to obtain a premix I, wherein the addition amount of the 2% by weight of the paraffin is 2% of the weight of the raw material, the addition amount of the hexane is 300mL/kg, and the addition amount of the grinding bodies is 4kg balls/1 kg of the raw material;
S2, drying the premix I, and removing paraffin and ethane to obtain a mixture II;
S3, pressing the mixture II, performing vacuum degumming, and sintering at a high temperature of 1500 ℃ to obtain snow shoveling sheets;
Wherein, when vacuum degumming is carried out, the mass fraction of the magnetic bonding phase is controlled to be 11.23/(10+0.35 multiplied by 20-2.2) =75.8 percent.
Example 2
As shown in fig. 2, this example differs from example 1 in that it consists of the following components in terms of mass fraction: 12% of tungsten carbide, 22% of nickel powder, 8% of cobalt, 5% of molybdenum carbide, 1% of thorium dioxide and 52% of titanium carbonitride;
Wherein tungsten carbide fsss=12 μm, nickel powder fsss=0.92 μm, titanium carbonitride fsss=2.7 μm.
In the embodiment, in the process of preparing the snow shoveling sheet, the ball milling time is 20 hours; sintering temperature is 1530 ℃, and sintering pressure is 5MPa; the mass fraction of the magnetic bonding phase at the time of degumming was 8.39/(8+0.35×22-5) =78.4%.
< Test example >
Sample: snow flake alloy Material produced in examples 1-2
The parameters of hardness HRA, density and alloy strength of each group of samples were measured separately and summarized as follows
Table 1 shows:
From the data such as hardness measured on the above samples, it was found that: the hardness HRA of the snow shoveling sheet alloy material obtained in the embodiment is more than 87.0, and the strength (B scale) is more than 2400MPa, namely, the hardness and strength level of the conventional hard alloy can be achieved, and the snow shoveling sheet alloy material can be used as a snow shoveling sheet to replace the conventional tungsten-cobalt hard alloy.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The light high-strength snow shovel is characterized by comprising the following components in percentage by mass: 12% of tungsten carbide, 20-25% of nickel powder, 8-10% of cobalt, 2.2% of molybdenum carbide, 0.3-1% of thorium dioxide, the balance of titanium carbonitride, tungsten carbide Fsss=12-22 mu m, nickel powder Fsss is less than or equal to 1.0 mu m, and the mass ratio of the molybdenum carbide: nickel powder = 1:6-11;
The preparation method of the light high-strength snow shoveling slice comprises the following steps:
s1, mixing the components according to mass fractions, and ball-milling to obtain a premix I;
s2, drying the premix I, and removing a ball milling medium to obtain a mixture II;
S3, pressing the mixture II, performing vacuum degumming, and sintering at a high temperature of 1500-1550 ℃ to obtain snow shoveling sheets;
When in vacuum degumming, controlling the mass fraction of the magnetic bonding phase to be 75.8-78.4%;
The cobalt magnetism is measured, the mass fraction of the magnetic bonding phase is calculated, and the mass fraction of the magnetic bonding phase is calculated according to the following formula:
magnetic binding phase% = cobalt magnetic/(cobalt content +0.35 x nickel powder content-molybdenum carbide content).
2. The lightweight high-strength snow shovel according to claim 1, wherein in step S1, a forming agent, a ball milling medium and a ball milling body are added during the ball milling process, and the ball milling time is 20-25 hours.
3. The lightweight high-strength snow shovel according to claim 2, wherein the shaping agent is one or more of paraffin, rubber, PEG, SD, and the ball milling medium is alcohol or hexane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210980508.7A CN115323218B (en) | 2022-08-16 | 2022-08-16 | Light high-strength snow shoveling sheet and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210980508.7A CN115323218B (en) | 2022-08-16 | 2022-08-16 | Light high-strength snow shoveling sheet and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115323218A CN115323218A (en) | 2022-11-11 |
| CN115323218B true CN115323218B (en) | 2024-04-26 |
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| CN202210980508.7A Active CN115323218B (en) | 2022-08-16 | 2022-08-16 | Light high-strength snow shoveling sheet and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05302136A (en) * | 1992-04-28 | 1993-11-16 | Kyocera Corp | Whisker reinforced sintered hard alloy |
| CN102151839A (en) * | 2011-03-08 | 2011-08-17 | 深圳市格林美高新技术股份有限公司 | ThO2-containing nickel-base binding phase superfine metal ceramic powder and preparation method and application thereof |
| CN107099719A (en) * | 2017-04-13 | 2017-08-29 | 武汉市腾宁新材料科技有限公司 | A kind of Strengthening and Toughening base titanium carbonitride and preparation method |
| CN107142407A (en) * | 2017-05-02 | 2017-09-08 | 四川大学 | A kind of preparation method of surface self-lubricating Ti (C, N) based ceramic metal high-abrasive material |
| CN110234797A (en) * | 2017-01-31 | 2019-09-13 | 森拉天时奥地利有限公司 | The tool of coating |
| CN111187959A (en) * | 2020-02-27 | 2020-05-22 | 西华大学 | Metal-rich phase gradient structure titanium carbonitride base cermet and preparation method thereof |
| WO2023164731A1 (en) * | 2022-03-03 | 2023-09-07 | Boehlerit Gmbh & Co.Kg. | Method for producing a coating on an object and correspondingly produced coated body |
-
2022
- 2022-08-16 CN CN202210980508.7A patent/CN115323218B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05302136A (en) * | 1992-04-28 | 1993-11-16 | Kyocera Corp | Whisker reinforced sintered hard alloy |
| CN102151839A (en) * | 2011-03-08 | 2011-08-17 | 深圳市格林美高新技术股份有限公司 | ThO2-containing nickel-base binding phase superfine metal ceramic powder and preparation method and application thereof |
| CN110234797A (en) * | 2017-01-31 | 2019-09-13 | 森拉天时奥地利有限公司 | The tool of coating |
| CN107099719A (en) * | 2017-04-13 | 2017-08-29 | 武汉市腾宁新材料科技有限公司 | A kind of Strengthening and Toughening base titanium carbonitride and preparation method |
| CN107142407A (en) * | 2017-05-02 | 2017-09-08 | 四川大学 | A kind of preparation method of surface self-lubricating Ti (C, N) based ceramic metal high-abrasive material |
| CN111187959A (en) * | 2020-02-27 | 2020-05-22 | 西华大学 | Metal-rich phase gradient structure titanium carbonitride base cermet and preparation method thereof |
| WO2023164731A1 (en) * | 2022-03-03 | 2023-09-07 | Boehlerit Gmbh & Co.Kg. | Method for producing a coating on an object and correspondingly produced coated body |
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| CN115323218A (en) | 2022-11-11 |
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