Preparation method for wear-resistant coating of traction wheel of high-speed elevator

A technology for high-speed elevators and traction wheels, applied in coatings, metal material coating processes, etc., can solve problems such as the application of structural materials that cannot be large, and achieve the effects of effective mechanical protection, rich edges, and fine grains

Active Publication Date: 2021-01-15
XIAN SPECIAL EQUIP INSPECTION INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in practice, amorphous materials have not been widely used. The main reason is that the shape of amorphous materials (strip, wire and powder) limits its application as a large-scale structural material.

Method used

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  • Preparation method for wear-resistant coating of traction wheel of high-speed elevator
  • Preparation method for wear-resistant coating of traction wheel of high-speed elevator
  • Preparation method for wear-resistant coating of traction wheel of high-speed elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing a high-speed elevator traction sheave wear-resistant coating according to this embodiment comprises the following steps:

[0027] Step 1, tungsten oxide powder (WO 3 Mass content greater than 99%, average particle size 2 / g~280m 2 / g, C content is 70% ~ 80%, average particle size <10μm) placed in a ball mill, with absolute ethanol and silicon carbide balls as the medium, ball milled for 8 hours; the ball milled material was dried at 80°C 6h, then sintering under vacuum conditions, the heating rate of sintering is 10°C / min, the sintering temperature is 1400°C, the holding time is 4h, and the vacuum degree is 400Pa to obtain tungsten carbide powder; the quality of the tungsten oxide powder is tungsten oxide 80% of the total mass of powder and graphene powder;

[0028] Step 2. Prepare tungsten-molybdenum-based amorphous alloy powder with a particle size of 10 μm by gas atomization. The specific method is: according to the nominal composition of tun...

Embodiment 2

[0034] A method for preparing a high-speed elevator traction sheave wear-resistant coating according to this embodiment comprises the following steps:

[0035] Step 1, tungsten oxide powder (WO 3 Mass content greater than 99%, average particle size 2 / g~280m 2 / g, C content is 70% ~ 80%, average particle size <10μm) placed in a ball mill, with absolute ethanol and silicon carbide balls as the medium, ball milled for 10h; the ball milled material was dried at 100°C 7h, then sintering under vacuum conditions, the heating rate of sintering is 15°C / min, the sintering temperature is 1600°C, the holding time is 5h, and the vacuum degree is 600Pa to obtain tungsten carbide powder; the quality of the tungsten oxide powder is tungsten oxide 82% of the total mass of powder and graphene powder;

[0036] Step 2. Prepare tungsten-molybdenum-based amorphous alloy powder with a particle size of 15 μm by gas atomization. The specific method is: according to the nominal composition of tungst...

Embodiment 3

[0041] A method for preparing a high-speed elevator traction sheave wear-resistant coating according to this embodiment comprises the following steps:

[0042] Step 1, tungsten oxide powder (WO 3 Mass content greater than 99%, average particle size 2 / g~280m 2 / g, C content is 70% ~ 80%, average particle size <10μm) placed in a ball mill, using absolute ethanol and silicon carbide balls as the medium, ball milled for 12h; the ball milled material was dried at 120°C 8h, then sintering under vacuum conditions, the heating rate of sintering is 20°C / min, the sintering temperature is 1800°C, the holding time is 6h, and the vacuum degree is 800Pa to obtain tungsten carbide powder; the quality of the tungsten oxide powder is tungsten oxide 84% of the total mass of powder and graphene powder;

[0043] Step 2. Prepare tungsten-molybdenum-based amorphous alloy powder with a particle size of 20 μm by gas atomization. The specific method is: according to the nominal composition of tungs...

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Abstract

The invention discloses a preparation method for a wear-resistant coating of a traction wheel of a high-speed elevator, comprising: 1, performing ball milling on tungsten oxide powder and graphene powder, drying and sintering to obtain tungsten carbide powder; 2, preparing tungsten-molybdenum-based amorphous alloy powder through a gas atomization method; 3, mixing the tungsten carbide powder and the tungsten-molybdenum-based amorphous alloy powder, adding a polyvinyl alcohol binder, and stirring uniformly to obtain mixed slurry; spraying, drying and screening the mixed slurry in a vacuum atomization furnace to obtain tungsten carbide/tungsten molybdenum-based amorphous alloy mixed powder; and 4, bonding and laying the tungsten carbide/tungsten-molybdenum-based amorphous alloy mixed powderon the groove surface of the traction wheel through environment-friendly glue, and then performing laser cladding to obtain the abrasion-resistant coating on the groove surface of the traction wheel of the high-speed elevator. The coating prepared by the method has excellent wear resistance, has a good microstructure beneficial to display of the coating performance, and can effectively prolong theservice life of the traction wheel of the high-speed elevator.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a preparation method of a wear-resistant coating for a traction sheave of a high-speed elevator. Background technique [0002] As a kind of "electromechanical special equipment" related to the safety of life and property, the application of elevators in modern life is becoming more and more common, and it also shows diversity in types and functions. According to the operating speed of the elevator, the elevator can be divided into: (1) low-speed elevator: its rated operating speed is often lower than 2m / s (2) high-speed elevator: its rated operating speed is 4-8m / s, or even 12.5m / s; (3) Medium-speed elevator: its rated operating speed is between low-speed elevator and high-speed elevator; (4) ultra-high-speed elevator: its rated operating speed is higher than 12.5m / s. With the increasing number of high-rise buildings and the continuous progress in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10B22F9/08C22C45/10B22F9/02C04B35/56C04B35/626
CPCC23C24/103B22F9/082B22F9/002C22C45/10B22F9/026C04B35/5626C04B35/62605Y02P10/25
Inventor 鲁元杨旭毕成张建龙李德标宁涛孙福洋杨阳曹博
Owner XIAN SPECIAL EQUIP INSPECTION INST
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