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A kind of preparation method of iron-based composite material for automobile gear

An iron-based composite material, automotive gear technology, applied in metal material coating process, liquid chemical plating, coating and other directions, can solve the problems of reducing the working reliability of gears, shortening the service life of gears, slow transmission response, etc. Good vibration and sound absorption performance, reduce vibration and noise, and fully dissipate heat

Active Publication Date: 2018-11-27
宁波新睦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing automobile gears wear more seriously, the transmission response is relatively slow, and the noise of the gears during transmission is relatively large, which shortens the service life of the gears and greatly reduces the reliability of the gears.

Method used

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  • A kind of preparation method of iron-based composite material for automobile gear

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Experimental program
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Effect test

Embodiment 1

[0029] Preparation of embodiment one copper-coated carbon fiber

[0030] The copper-plated carbon fiber is prepared by performing copper-plating treatment on the carbon fiber through the following steps, which include in turn:

[0031] Step A: Carbon Fiber Pretreatment

[0032] Surface degumming: soak in the boiling acetone solution in the Soxhlet extractor and stir continuously with a stirring porcelain, the temperature is controlled at 70°C, and the stirring time is 240min to ensure that the acetone degumming is complete;

[0033] Surface degreasing: put the degummed carbon fiber in 10% NaOH solution, stir at room temperature for 30 minutes, wash the taken out carbon fiber with ethanol and deionized water successively, and dry it for later use;

[0034] Surface roughening: Use potassium persulfate solution with a mass fraction of 10% as the roughening solution, immerse the degreased carbon fiber, and stir continuously for 60 minutes; the roughened carbon fiber is cleaned wi...

Embodiment 2

[0039] Embodiment 2 A kind of preparation method of iron-based composite material for automobile gear

[0040] In this embodiment, a method for preparing an iron-based composite material for automobile gears comprises the following steps in sequence:

[0041] Step 1, weighing the following ingredients in parts by weight: 5 parts of copper-plated carbon fiber prepared in Example 1, 5 parts of tantalum nitride, 2.2 parts of nickel powder, 2 parts of copper powder and 200 parts of Fe powder; The nickel powder particle size is 150-200 mesh, the Fe powder particle size is 250-300 mesh, and the copper powder particle size is 150-200 mesh; then add 5 parts by weight of zinc stearate for ball milling, mixing Time is 5 hours; Obtain mixture;

[0042] Step 2, pressing the mixture prepared in the step 1 under a pressure of 1000Mpa; obtaining a blank;

[0043] Step 3, sintering the blank prepared in the step 2, the sintering includes early sintering and later sintering: the early sinter...

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Abstract

The invention discloses a preparation method of an iron-based composite material for an automobile gear. The preparation method sequentially comprises the following steps of 1, weighing ingredients by weight part to obtain a mixture; 2, performing pressing to obtain a workblank; 3, sintering the prepared workblank to obtain a sintered alloy block; 4, performing thermal treatment on the alloy block obtained after being treated in the third step and obtaining the iron-based composite material for the automobile gear. The method adopts the specific formula and technology, and the obtained iron-based composite material for the automobile gear is good in mechanical property, has the functions of sound absorption and vibration reduction and is particularly suitable for preparing the automobile gear.

Description

technical field [0001] The invention relates to the technical field of materials for auto parts, in particular to a method for preparing an iron-based composite material for auto gears. Background technique [0002] A gear is a mechanical element with teeth on the rim that can continuously mesh to transmit motion and power. The gear is an important part of the car. The life of automotive gears is mainly evaluated by two indicators, one is the contact fatigue strength of automotive gears, the other is the bending fatigue strength of automotive gears, and the contact fatigue strength and bending fatigue strength are mainly determined by the properties of automotive gear materials. There are many steel grades for gears of medium and heavy trucks in my country. The existing automobile gear wears seriously, the transmission response is relatively slow, and the noise of the gear during transmission is relatively large, which shortens the service life of the gear and greatly reduc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C47/14C22C47/04C22C49/08C22C49/14C23C18/40C23C18/18C22C101/10C22C121/02
CPCC22C47/04C22C47/14C22C49/08C22C49/14C23C18/1879C23C18/405
Inventor 姚国强
Owner 宁波新睦科技有限公司
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