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Powder metallurgical gear

A technology of powder metallurgy and gears, which is applied in the field of powder metallurgy, can solve the problems of powder metallurgy gears such as uneven density, wear resistance, poor strength and hardness, small elongation and reduction of area, etc., and achieve good strength and hardness. Effect of high density, high elongation and reduction of area

Inactive Publication Date: 2016-10-12
黄宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a powder metallurgy gear to solve the problems of uneven overall density, low density, small elongation and area reduction, poor wear resistance, strength and hardness, low material utilization rate and low production cost of existing powder metallurgy gears. advanced questions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0048] The cutting agent is based on weight and is made of the following raw materials: 12-14 parts of cutting oil, 8-10 parts of tripropyl phosphate, 4-6 parts of calcium dinonylnaphthalenesulfonate, 2,6-di-tert-butyl 5-9 parts of p-cresol, 5-7 parts of dodecenyl succinic acid, 8-10 parts of triethanolamine borate, 6-10 parts of polyacrylamide, 7-9 parts of sodium dodecyl benzene sulfonate Parts, 5-8 parts of benzoic acid, 3-7 parts of oleic acid amide, 2-6 parts of tetrasodium edetate, 1-2 parts of amino carboxylic acid chelating agent, 7-13 parts of polyethylene glycol; The preparation method of the cutting agent includes the following steps:

[0049] Step 1. Combine cutting oil, tripropyl phosphate, calcium dinonylnaphthalenesulfonate, 2,6-di-tert-butyl p-cresol, dodecenyl succinic acid, triethanolamine borate, polyacrylamide, Sodium dodecylbenzene sulfonate and benzoic acid are mixed uniformly, and then the mixture is heated to 52-58°C;

[0050] Step 2: Add the remaining com...

Embodiment 1

[0068] A powder metallurgy gear, based on weight, made of the following raw materials: 560 parts of water atomized iron powder, 4 parts of copper powder, 4 parts of molybdenum powder, 4 parts of vanadium powder, 2 parts of nickel powder, 2.5 parts of yttrium powder, 2.5 parts of aluminum powder, 1.5 parts of magnesium powder, 1.2 parts of cobalt powder, 1.4 parts of lead powder, 2 parts of steel slag powder, 1.5 parts of iron slag powder, 1.5 parts of ferroalloy slag powder, 1 part of modified tree ash powder, 0.9 part of graphite powder , 0.8 part of amino resin, 0.7 part of polyether modified silicone oil, 0.7 part of hydroxypropyl methylcellulose, 0.7 part of zinc stearate, 0.6 part of polyethylene glycol, 0.3 part of ethylene bis-stearic acid amide, stearic acid 0.7 part of acid, 0.6 part of carbon fiber, 0.4 part of glass fiber, 0.2 part of boron nitride, 0.1 part of glycidoxypropyltrimethoxysilane, 0.08 part of silica, 0.04 part of manganese sulfide, 0.02 part of acrylate,...

Embodiment 2

[0098] A powder metallurgy gear, based on weight, made of the following raw materials: 280 parts of water atomized iron powder, 2 parts of copper powder, 2 parts of molybdenum powder, 3 parts of vanadium powder, 1 part of nickel powder, 2 parts of yttrium powder, 2 parts of aluminum powder, 1 part of magnesium powder, 1 part of cobalt powder, 1 part of lead powder, 1.5 parts of steel slag powder, 1 part of iron slag powder, 1 part of ferroalloy slag powder, 0.8 part of modified tree ash powder, 0.6 part of graphite powder , 0.6 part of amino resin, 0.4 part of polyether modified silicone oil, 0.6 part of hydroxypropyl methylcellulose, 0.3 part of zinc stearate, 0.4 part of polyethylene glycol, 0.2 part of ethylene bis-stearic acid amide, stearic acid 0.5 part of acid, 0.4 part of carbon fiber, 0.3 part of glass fiber, 0.2 part of boron nitride, 0.1 part of glycidoxypropyltrimethoxysilane, 0.05 part of silica, 0.03 part of manganese sulfide, 0.01 part of acrylate, 0.02 part of i...

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Abstract

The invention discloses a powder metallurgical gear. The powder metallurgical gear is prepared from water atomization iron powder, copper powder, molybdenum powder, vanadium powder, nickel powder, yttrium powder, aluminum powder, magnesium powder, cobalt powder, lead powder, steel slag powder, iron-melted furnace slag powder, ferroalloy slag powder, modified tree ash powder, graphite powder, amino resin, polyether modified silicone, hydroxypropyl methyl cellulose, zinc stearate, polyethylene glycol, ethylene bisstearamide, stearic acid, carbon fibers, glass fibers, boron nitride, epoxypropoxy propyl trimethoxysilane, silicon dioxide, manganese sulfide, acrylate, an inhibitor, a binder, an enhancer, a cutting agent, a lubricant, a coupling agent and a dispersing agent. According to the powder metallurgical gear, by means of specific composition proportion, the overall density is uniform, the compactness is high, the elongation and reduction of cross section are high, the abrasion resistance, strength and hardness are good, the material utilization rate is high, and the materials are suitable for rapidly producing high-performance gears on large scale.

Description

【Technical Field】 [0001] The invention belongs to the technical field of powder metallurgy, and specifically relates to a powder metallurgy gear. 【Background technique】 [0002] Gears are wheel-shaped mechanical parts that rely on tooth meshing to transmit torque reliably and noiselessly. Gears can be transmitted with other tooth-shaped mechanical parts to achieve functions such as changing speed and torque, changing the direction of motion, and changing the form of motion. Gear transmission has become the most widely used transmission method. [0003] Powder metallurgy technology can produce parts that require high dimensional accuracy and complex shapes in a shape that is very similar to the shape of the product, and can greatly reduce cutting costs. Especially in the field of gear manufacturing, the powder metallurgy method for manufacturing gears is an efficient, precise and flexible metal processing technology, suitable for mass production of high-strength, high-precision tol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F3/02B22F3/10B22F3/24B22F5/08C23C8/22C23C8/18
CPCB22F1/0003B22F3/02B22F3/1007B22F3/24B22F5/08B22F2003/248B22F2999/00C23C8/18C23C8/22B22F2201/02B22F2201/013
Inventor 黄宇
Owner 黄宇
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