Method for preparing iron-based amorphous and nanocrystalline coating

An iron-based amorphous and nanocrystalline technology, which is applied in coating, metal material coating process, transportation and packaging, etc., can solve the problems of unstable coating quality and high preparation cost, and achieve low price advantage and low equipment price , The effect of high powder utilization rate

Active Publication Date: 2017-07-07
无锡海韵新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing iron-based amorphous and nanocrystalline coatings in order to overcome the problems of high preparation cost and unstable coating quality in the prior art

Method used

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  • Method for preparing iron-based amorphous and nanocrystalline coating
  • Method for preparing iron-based amorphous and nanocrystalline coating
  • Method for preparing iron-based amorphous and nanocrystalline coating

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specific Embodiment approach 1

[0012] Specific Embodiment 1: This embodiment describes a method for preparing iron-based amorphous and nanocrystalline coatings, using elemental powdered iron powder, chromium powder, boron powder, silicon powder, and niobium powder as raw materials. Powder, chromium powder, boron powder, silicon powder, and niobium powder have a mass-to-number ratio of (64-2X): 13: (2X+16): 3: 4, where X is 1, 2 or 3, and all elemental powders Put them together with cemented carbide balls into a ball milling tank for ball milling, fully mix, and use argon to protect during the ball milling process; add an organic binder to the homogeneously mixed elemental powder and hard metal balls, and the amount of organic binder added 10g of organic binder is added to every 100g of elemental powder, and the alloy powder is pressed into a rod shape by using a cylindrical mold (YQ32-250t powder forming hydraulic press produced by Nantong Dawo Heavy Industry Machine Tool Co., Ltd.) to obtain a composite mat...

specific Embodiment approach 2

[0013] Specific embodiment two: a method for preparing iron-based amorphous and nanocrystalline coatings described in specific embodiment one, the purity of the iron powder is 99.0%, and the particle size is 325 mesh; the purity of niobium powder is 99.9%, and the particle size is 500 mesh; the purity of boron powder is 99.99%, and the particle size is 180 mesh; the purity of chromium powder is 99.95%, and the particle size is 325 mesh; the purity of silicon powder is 99.95%, and the particle size is 300 mesh.

specific Embodiment approach 3

[0014] Specific embodiment three: a method for preparing iron-based amorphous and nanocrystalline coatings described in specific embodiment one, the balls in the ball mill tank are zirconia, the diameter of the balls is 10mm, and the ball-to-material ratio is 20 : 1, the ball milling speed is 300r / min, the ball milling time is 5h, the protective gas is high-purity argon, and the purity can reach 99.99%.

[0015] Embodiment 4: Embodiment 1 describes a method for preparing iron-based amorphous and nanocrystalline coatings, wherein the organic binder is glue or water glass.

[0016] Embodiment 5: Embodiment 1 describes a method for preparing iron-based amorphous and nanocrystalline coatings, wherein the metal substrate is low-carbon steel, medium-carbon steel or low-alloy steel.

[0017] Embodiment 6: Embodiment 1 describes a method for preparing iron-based amorphous and nanocrystalline coatings, the parameters of the cladding process are: cladding current: 120A, cladding speed: ...

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Abstract

The invention provides a method for preparing an iron-based amorphous and nanocrystalline coating and belongs to the technical field of metal surface engineering. The method comprises the steps that elemental iron powder, chromium powder, boron powder, silicon powder and niobium powder are used as raw materials; the powder and hard alloy balls are put into a ball-milling tank to be subjected to ball milling and fully mixed; then an organic bonding agent is added; a mixture is pressed into a rod shape through a cylindrical mold to obtain a composite rod; the composite rod is naturally dried at the normal temperature and dried through a drying oven; and the composite rod is subjected to cladding through arc heat generated by an argon arc welding machine tungsten electrode, put on the surface of a metal substrate in a low-temperature tank and solidified to obtain the iron-based amorphous and nanocrystalline coating. The iron-based amorphous and nanocrystalline coating is well combined with the metal substrate, and nanocrystalline particles are uniformly distributed; the technological process is simple, easy to operate and low in equipment price; and compared with amorphous and nanocrystalline coatings prepared through laser cladding, the method for preparing the amorphous and nanocrystalline coating through argon arc cladding of the composite rod has the characteristics of being easy to operate, high in powder utilization rate, capable of reducing the production cost and the like.

Description

technical field [0001] The invention belongs to the technical field of metal surface engineering, and in particular relates to a method for preparing iron-based amorphous and nanocrystalline coatings. Background technique [0002] The loss caused by material wear and corrosion is as high as 9.5% of the gross output value of the national economy, and obtaining amorphous and nanocrystalline coatings on the surface of traditional materials through surface engineering technology can significantly improve the wear resistance and corrosion resistance of materials, and its application potential is huge. It has become a research hotspot in the field of surface engineering technology. Iron-based amorphous and nanocrystalline coatings are widely used in petroleum, natural gas, chemical industry, hydropower, nuclear power, automobile Anti-corrosion, wear-resistant and repair in the fields of mining machinery, marine engineering and so on. At present, laser cladding, plasma cladding, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10B22F1/00C22C45/02C22C38/32C22C38/26C22C38/02
CPCC22C38/02C22C38/26C22C38/32C22C45/02C23C24/103C22C2200/02C22C2200/04B22F1/10
Inventor 孟君晟史晓萍王永东金国王振廷
Owner 无锡海韵新材料科技有限公司
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