Method for manufacturing tungsten carbide hard alloy wear-resistant coating of rod and wire hot press roll

A technology of hard alloy and wear-resistant coating, which is applied in the coating process and coating of metal materials, which can solve the problems of difficult treatment of tungsten carbide hard alloy coating, contradiction between strength and wear resistance, and achieve resource efficiency Maximized, excellent thermal fatigue resistance and thermal wear resistance, environmental pollution-free effect

Active Publication Date: 2012-05-16
SHENYANG DALU LASER COMPLETE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The purpose of the present invention is to solve the problem of difficulty in preparing tungsten carbide coatings on the surface of hot rolling rolls for rods and wires in the prior art, and utilize the excellent performance of laser cladding technology to solve the problem of the strength and durability of the rolling rods and wires in the process of manufacturing and using. A new method of preparing tungsten carbide coatings on the surface of hot rolling rolls for rods and wires is given.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The laser cladding process for manufacturing rods and wires with tungsten carbide hard alloy wear-resistant coating for hot rolling rolls includes the following processes: 1. Preparation of tungsten carbide hard alloy laser cladding materials.

[0033] A. Nickel-based alloy is the chemical composition of the bonding phase, and its components are calculated by weight percentage: carbon 0.2% silicon 3.5% boron 2.5% chromium 6% iron 6% and the rest is nickel.

[0034] B. Tungsten carbide features: Spherical cast tungsten carbide.

[0035] C. Powder ratio: spherical cast tungsten carbide is 80% by weight; nickel-based alloy is 20% by weight of the binder phase.

[0036] Prepare on an electronic balance according to the above-mentioned materials and proportions, and mix in a special mixer for more than 4 hours.

[0037] The base material of rod and wire roll is medium nickel chromium molybdenum infinite chilled alloy cast iron roll.

[0038] 2. Machining and ...

Embodiment 2

[0044] The process of laser cladding manufacturing rod and wire hot rolling tungsten carbide wear-resistant coating includes the following process: 1. Preparation of tungsten carbide laser cladding material.

[0045] A. Nickel-based alloy is the chemical composition of the bonding phase, and its components are calculated by weight percentage: carbon 0.1% silicon 2.5% boron 1.5% chromium 2% iron 2% and the rest is nickel.

[0046] B. Tungsten carbide features: Spherical cast tungsten carbide.

[0047] C. Powder proportion: the weight percentage of spherical cast tungsten carbide is 60%; the weight percentage of nickel-based alloy as the binder phase is 40%.

[0048] Prepare on an electronic balance according to the above-mentioned materials and proportions, and mix in a special mixer for more than 4 hours.

[0049] The base material of the bar and wire roll is cast steel roll.

[0050] 2. Machining and surface cleaning of the working layer.

[0051] The purpo...

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Abstract

The invention relates to a method for manufacturing a tungsten carbide hard alloy wear-resistant coating of a rod and wire hot press roll. A laser cladding technical measure is adopted on an ordinary roll substrate so that a nickel base alloy about 0.1 to 1mm formed on the surface of the substrate is an adhesion phase tungsten carbide hard alloy coating. The method comprises the following technical processes that: firstly, the preparation of tungsten carbide hard alloy laser cladding materials is carried out; then, the work layer mechanical processing and the surface cleaning are carried out; and next, the laser cladding processing is carried out so that the tungsten carbide hard alloy coating is formed on the surface of the rod and wire hot press roll. The method has the advantages that the service life of the roll is greatly prolonged, the resource benefit maximization is realized, and the method has the characteristics that the production rate is high, the energy consumption is low, the working allowance of the cladding layer is small, the finished product rate is high, the integral cost is low, and the like.

Description

technical field [0001] The invention relates to a method for preparing wear-resistant and heat-resistant coatings on the surface of metallurgical equipment components, in particular to a method for preparing tungsten carbide hard alloy coatings on the surface of hot-rolled rods and wires using laser cladding technology, which belongs to laser melting covering technical fields. Background technique [0002] Since 2009, the state has successively invested 4 trillion yuan to strengthen the implementation of projects such as railway transportation construction, urban infrastructure construction, energy development and construction, water conservancy construction, real estate development, and various policies for benefiting farmers. In 2009, the output of bars and steel bars was 177.15 million tons, and the output of wire rods was 95.86 million tons. According to incomplete statistics, there are more than 500 sets of bar and wire rolling mill production lines in the country. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
Inventor 陶兴启陈海涛崔忠宝
Owner SHENYANG DALU LASER COMPLETE EQUIP
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