Abrasion-resistant gear and preparation method

A gear and gear material technology, applied in belts/chains/gears, mechanical equipment, components with teeth, etc., can solve casting difficulties, reduce sintering activation energy and other problems, achieve high strength and hardness, good wear resistance and impact resistance

Inactive Publication Date: 2016-11-09
WUHU SANDAO MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Powder metallurgy is a process technology that uses metal powder (or a mixture of metal powder and non-metal powder) as raw material, after forming and sintering, to manufacture metal materials, composite materials and various types of products, mechanical parts manufactured by powder metallurgy method, and Sintered mechanical parts, usually including mechanical structural parts, oil bearings and friction parts, are widely used in agricultural machinery, automobiles, machine tools, instruments, textiles, light industry and other fields. At the same time, the melting temperature of high-temperature melting point metals is quite high. Traditional casting has difficult, and the use of powder metallurgy can significantly reduce its sintering activation energy (such as tungsten, zirconium, chromium, molybdenum and other metals), so

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A wear-resistant gear and a preparation method thereof, the main preparation steps of which are as follows:

[0017] (1) Raw material weighing: According to the performance requirements of the gear material, weigh the appropriate amount of the following component materials according to the ratio: iron: 82.1%, manganese dioxide: 0.3%, molybdenum disulfide: 0.5%, nickel oxide: 0.1%, Cobalt carbide: 0.3%, silicon carbide: 1%, silicon dioxide: 1%, chromium: 0.2%, tin: 1.5%, copper: 12%, phosphorus: 0.1%, zirconium: 0.1%, graphite: 0.3%, lanthanum Cerium alloy: 0.5%;

[0018] (2) Pretreatment: According to the physical properties of each component, dry the above powder in a clean oven at 50 degrees Celsius for 2 hours;

[0019] (3) Component mixing: add the above-mentioned dried powders into the powder mixer one by one, and fully stir and mix for 0.5 hours, then add 0.5% of the auxiliary agent, the auxiliary agent is zinc stearate , continue stirring and mixing for 1 hour;...

Embodiment 2

[0024] A wear-resistant gear and a preparation method thereof, the main preparation steps of which are as follows:

[0025] (1) Raw material weighing: according to the performance requirements of the gear material, weigh the appropriate amount of the following component materials according to the ratio: iron: 65%, manganese dioxide: 1.2%, molybdenum disulfide: 1.6%, nickel oxide: 0.9%, Cobalt carbide: 1.2%, silicon carbide: 3%, silicon dioxide: 3%, chromium: 0.8%, tin: 3.5%, copper: 15%, phosphorus: 0.3%, zirconium: 0.5%, graphite: 2%, lanthanum Cerium alloy: 2%;

[0026] (2) Pretreatment: According to the physical properties of each component, dry the above powder in a clean oven at 200 degrees Celsius for 2-48 hours;

[0027] (3) Component mixing: add the above-mentioned dried powders to the powder mixer one by one, and fully stir and mix for 5 hours, and then add 0.8% additives, the additives are zinc stearate , continue stirring and mixing for 3 hours;

[0028] (4) Pref...

Embodiment 3

[0032] A wear-resistant gear and a preparation method thereof, the main preparation steps of which are as follows:

[0033] (1) Raw material weighing: According to the performance requirements of the gear material, weigh the appropriate amount of the following component materials according to the ratio: iron: 71.2%, manganese dioxide: 0.3%, molybdenum disulfide: 0.5%, nickel oxide: 0.1%, Cobalt carbide: 0.3%, silicon carbide: 1%, silicon dioxide: 3%, chromium: 0.8%, tin: 3.5%, copper: 15%, phosphorus: 0.3%, zirconium: 0.5%, graphite: 2%, lanthanum Cerium alloy: 1.5%;

[0034] (2) Pretreatment: According to the physical properties of each component, dry the above powder in a clean oven at 80 degrees Celsius for 48 hours;

[0035] (3) Mixing of components: add the above-mentioned dried powders into the powder mixer one by one, and fully stir and mix for 5 hours, then add 0.2% additives, the additives are zinc stearate , continue stirring and mixing for 3 hours;

[0036] (4) P...

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PUM

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Abstract

The invention discloses an abrasion-resistant gear and a preparation method. A gear material comprises, by mass, 65%-85% of ferrum, 0.3%-1.2% of manganese dioxide, 0.5%-1.6% of molybdenum disulfide, 0.1%-0.9% of nickel oxide, 0.3%-1.2% of cobalt carbide, 1%-3% of silicon carbide, 1%-3% of silicon dioxide, 0.2%-0.8% of chromium, 1.5%-3.5% of tin, 3%-15% of copper, 0.1%-0.3% of phosphorus, 0.1%-0.5% of zirconium, 0.3%-2% of graphite, 0.5%-2% of lanthanum-cerium alloy, 0.2%-0.8% of auxiliaries and the balance inevitable microelements and impurities. The preparation method mainly comprises the steps of weighing of raw materials, pretreatment, component mixing, preforming, high-temperature sintering and aftertreatment. The produced gear material has high strength and hardness and also has good abrasion resistance and impact resistance.

Description

technical field [0001] The invention relates to the field of powder metallurgy, in particular to a wear-resistant gear and a preparation method. Background technique [0002] Powder metallurgy is a process technology that uses metal powder (or a mixture of metal powder and non-metal powder) as raw material, after forming and sintering, to manufacture metal materials, composite materials and various types of products, mechanical parts manufactured by powder metallurgy method, and Sintered mechanical parts, usually including mechanical structural parts, oil bearings and friction parts, are widely used in agricultural machinery, automobiles, machine tools, instruments, textiles, light industry and other fields. At the same time, the melting temperature of high-temperature melting point metals is quite high. Traditional casting has difficult, and the use of powder metallurgy can significantly reduce its sintering activation energy (such as tungsten, zirconium, chromium, molybden...

Claims

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Application Information

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IPC IPC(8): C22C38/18C22C38/04C22C38/12C22C38/10C22C38/08C22C38/02C22C38/16C22C38/14C22C32/00C22C33/02B22F5/08B22F1/00F16H55/06
CPCC22C38/18B22F1/0003B22F5/08C22C32/0005C22C33/0257C22C38/002C22C38/005C22C38/008C22C38/02C22C38/04C22C38/105C22C38/12C22C38/14C22C38/16F16H55/06
Inventor 程叙毅
Owner WUHU SANDAO MATERIAL TECH CO LTD
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