Hard alloy-based long-life flange and preparation process thereof
A kind of cemented carbide, preparation technology, applied in flange connection, mechanical equipment, damage protection, etc., to achieve the effect of improving corrosion resistance, improving service life, and increasing performance
Pending Publication Date: 2022-06-10
江阴市万里锻件有限公司
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
When the traditional flange is used, because the material of the traditional flange is usually carbon steel, the flange is prone to oxidation and rust after long-term use, which affects the strength and hardness of the flange, thereby reducing the Therefore, a long-life flange based on cemented carbide and its preparation process are proposed
Method used
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Embodiment 1
[0028] In this embodiment, specifically: in S3, the nanocrystalline composite powder is processed by low-pressure sintering; the nanocrystalline composite powder is processed by wet grinding and low-pressure sintering.
[0029] In this embodiment, specifically: in S4, the ultrafine-grained tungsten-cobalt cemented carbide is shaped by a casting mold, and one side of an ultrafine-grained alloy plate 7 is provided with a connecting part 3, and the other ultrafine-grained alloy plate 7 is provided with a connecting part 3, and the other ultrafine-grained One side of the crystal alloy plate 7 is provided with a connecting hole 5; the ultra-fine crystal alloy plate 7 is plasticized through a casting mold.
[0030] In this embodiment, specifically: in S6, the cemented carbide composite board is drilled, ground and polished by drilling, grinding and polishing equipment, and the burrs on the surface of the cemented carbide composite board are treated to make the cemented carbide compos...
Embodiment 2
Embodiment 3
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The long-life flange based on the hard alloy comprises a carbon steel plate, two ultra-fine grain alloy plates are symmetrically welded to the two sides of the carbon steel plate, a connecting part is arranged on one side of one ultra-fine grain alloy plate, a connecting hole is formed in one side of the other ultra-fine grain alloy plate, and the two ultra-fine grain alloy plates are symmetrically welded to the two sides of the carbon steel plate. Mounting holes are evenly formed in the middle of the front surface of the carbon steel plate and the middle of the front surface of the ultra-fine grain alloy plate, the outer side wall of the carbon steel plate and the outer side wall of the ultra-fine grain alloy plate are coated with acrylic acid coatings, and through holes are formed in the middle of the front surface of the carbon steel plate and the middle of the front surface of the ultra-fine grain alloy plate. The strength and hardness of the flange are improved through the ultra-fine grain alloy plate, the use range of the flange is widened, oxygen and water are isolated for the flange through the acrylic acid coating, the situation that the flange is oxidized and rusted is avoided, the corrosion resistance, oxidation resistance and weather resistance of the flange are improved through the acrylic acid coating, the performance of the flange is improved, and the service life of the flange is prolonged. And the service life of the flange is further prolonged.
Description
technical field [0001] The invention relates to the technical field of flange preparation, in particular to a cemented carbide-based long-life flange and a preparation process thereof. Background technique [0002] Flanges are also called flange flanges or flanges. Flanges are parts that are connected to each other between shafts and are used for connection between pipe ends; they are also useful for flanges on equipment inlets and outlets, used for two The connection between equipment, such as reducer flange, flange connection or flange joint, refers to the detachable connection of flanges, gaskets and bolts as a combined sealing structure; When the traditional flange is used, because the material of the traditional flange is usually carbon steel, the flange is prone to oxidation and rust after long-term use, which affects the strength and hardness of the flange, thereby reducing the Therefore, a long-life flange based on cemented carbide and its preparation process are p...
Claims
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IPC IPC(8): F16L23/032F16L58/18B22F3/14B22F5/00B22F9/04B22F3/24B23P15/00
CPCF16L23/032F16L58/187B22F3/14B22F5/006B22F9/04B22F3/24B23P15/00B22F2003/247B22F2003/245B22F2003/242B22F2003/248B23P2700/11
Inventor 徐子链沈文辉周辜胡小波丁虎
Owner 江阴市万里锻件有限公司