Nickel-based titanium nitride metal ceramic coating material and preparation method and application thereof

A metal-ceramic coating and ceramic coating technology are applied in the field of nickel-based titanium nitride metal-ceramic coating materials and their preparation, which can solve problems such as poor corrosion resistance of coatings, achieve strong corrosion resistance, increase service life, High bonding strength

Inactive Publication Date: 2019-03-29
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method for preparing a nickel-based titanium nitride cermet coating material in order to overcome the defect of poor corrosion resistance of the coating described in the prior art.

Method used

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  • Nickel-based titanium nitride metal ceramic coating material and preparation method and application thereof
  • Nickel-based titanium nitride metal ceramic coating material and preparation method and application thereof
  • Nickel-based titanium nitride metal ceramic coating material and preparation method and application thereof

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Effect test

Embodiment 1

[0059] A nickel-based titanium nitride cermet coating material comprises the following components in mass percentage: 75% of titanium nitride, 20% of nickel, and the rest is high-purity graphite powder with a particle size of 20 μm.

[0060] The preparation method of the above-mentioned nickel-based titanium nitride cermet coating material comprises the following steps:

[0061] S1. Mixing ball mill: Add the mixed powder of TiN powder, nickel powder and high-purity graphite powder into the planetary ball mill with a hard alloy inner layer embedded inside, add 500g of absolute ethanol to every 1000g of mixed powder, the ratio 8:1, the rotating speed is 260r / min, and the grinding time is 60h;

[0062] S2. Mixing agent: Prepare 5wt.% polyethylene glycol solution at a temperature of 90°C. After the ball milling is completed, mix the prepared polyethylene glycol solution into the mixture liquid, then roll the ball mill to mix evenly, and mix in 5wt. The quality of % polyethylene g...

Embodiment 2

[0067] A nickel-based titanium nitride cermet coating material comprises the following components in mass percentage: 85% of titanium nitride, 12% of nickel, and the rest is high-purity graphite powder with a particle size of 20 μm.

[0068] The preparation method of the above-mentioned nickel-based titanium nitride cermet coating material comprises the following steps:

[0069] S1. Mixing ball mill: Add the mixed powder of TiN powder, nickel powder and high-purity graphite powder into the planetary ball mill with a hard alloy inner layer embedded inside, add 500g of absolute ethanol to every 1000g of mixed powder, the ratio 8:1, the rotating speed is 260r / min, and the grinding time is 60h;

[0070] S2. Mixing agent: Prepare 4wt.% polyethylene glycol solution at a temperature of 90°C. After the ball milling is completed, mix the prepared polyethylene glycol solution into the mixture liquid, and then roll the ball mill to mix evenly. The mixed 4wt. The quality of % polyethylen...

Embodiment 3

[0075] A nickel-based titanium nitride cermet coating material comprises the following components in mass percent: 65% of titanium nitride, 28% of nickel, and the rest is high-purity graphite powder with a particle size of 20 μm.

[0076] The preparation method of the above-mentioned nickel-based titanium nitride cermet coating material comprises the following steps:

[0077] S1. Mixing ball mill: Add the mixed powder of TiN powder, nickel powder and high-purity graphite powder into the planetary ball mill with a hard alloy inner layer embedded inside, add 500g of absolute ethanol to every 1000g of mixed powder, the ratio 8:1, the rotating speed is 260r / min, and the grinding time is 60h;

[0078] S2. Mixing agent: Prepare 5wt.% polyethylene glycol solution at a temperature of 90°C. After the ball milling is completed, mix the prepared polyethylene glycol solution into the mixture liquid, then roll the ball mill to mix evenly, and mix in 5wt. The quality of % polyethylene glyc...

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Abstract

The invention discloses a nickel-based titanium nitride metal ceramic coating material and preparation method and application thereof. The preparation method comprises the following steps that S1, mixing and ball milling, carrying out ball milling on a mixed raw material and a ball milling solvent; the mixed raw materials are calculated according to the mass ratio of 60%-85% of a titanium nitride,10-30% of nickel and 0.5-10% of carbon; S2, mixed forming agent, after the ball milling is finished, adding the mixed forming agent into the ball mill to carry out rolling ball milling, and a mixed material liquid is obtained; S3, spray granulation, carrying out spray granulation on the mixed material liquid in the step S2, so as to obtain mixed materials; S4, carbonizing to prepare the powder, drying the mixed material granules in the step S3, then carrying out carbonization and solid solution reaction in a high-temperature carbonization furnace to obtain (Ti, Ni) (C,N) solid solution powder; S5, screening particles, the (Ti, Ni) (C,N) solid solution powder is sieved by a mesh sieve, so as to obtain the nickel-based titanium nitride metal ceramic coating material with the average grain diameter of 60-100 microns. The nickel-based titanium nitride metal ceramic coating material prepared by the preparation method has high wear resistance and strong corrosion resistance.

Description

technical field [0001] The invention relates to the field of electric fittings, more specifically, to a nickel-based titanium nitride cermet coating material and a preparation method and application thereof. Background technique [0002] The existing structural surface coatings of electrical hardware tools usually cannot protect the inner layer material well or are not provided with coatings. All electrical fittings are usually in a complex physical and chemical environment. Over time, mechanical wear, oxidation corrosion, chemical corrosion, etc. will appear on the surface of the fittings, seriously interfering with the normal operation of electrical equipment. Each electrical fitting is usually in a complex physical and chemical environment. [0003] Taking the grounding body of power transmission towers in my country as an example, the grounding body is generally flat steel, which is buried in the soil for a long time, and the surface is prone to mechanical wear and oxid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/16B22F9/04B22F9/02B22F1/00C23C24/08
CPCB22F1/0003B22F9/026B22F9/04C22C29/16C23C24/085
Inventor 李晓斌肖琪关华深文洪兵景行王建宏李保国刘宝军张红阳李子新叶智杰郑日平修宇翔王锡森
Owner GUANGDONG POWER GRID CO LTD
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