CN101386537B - Preparation method of ceramic commutator material - Google Patents
Preparation method of ceramic commutator material Download PDFInfo
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- CN101386537B CN101386537B CN200810137375A CN200810137375A CN101386537B CN 101386537 B CN101386537 B CN 101386537B CN 200810137375 A CN200810137375 A CN 200810137375A CN 200810137375 A CN200810137375 A CN 200810137375A CN 101386537 B CN101386537 B CN 101386537B
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Abstract
The invention provides a ceramic commutator material and a manufacture method thereof, which relate to a commutator material and the manufacture method thereof. The invention solves the problem that the prior commutator is not matched with the prior ceramic electric brush. The material is prepared from Cu powder, carbon soot, Si powder and Ti powder. The method comprises the following steps: adding absolute ethanol to mixture of the Cu powder, the carbon soot, the Si powder and the Ti powder; carrying out ball milling and drying on the mixture; placing the dried powder into a metal mold to produce a preformed blank; then applying pressure on the preformed blank for 28 to 32 seconds after the preformed blank is quickly combusted for 7 to 13 seconds; and finally, cooling the preformed blankto room temperature in a quartz sand box so as to obtain the ceramic commutator material. The ceramic commutator material produced by the method has the advantages of short production period, low cost, simple preparation process, energy conservation and environmental protection.
Description
Technical field
The present invention relates to a kind of method of manufacture of commutator material.
Background technology
Now, employed commutator material is a red copper in the industry, but red copper is softer; Do not match with existing ceramic electric brush, wear resistance is relatively poor, and constantly riseing along with the metallic substance price; Cause the cost of reverser constantly to increase, make the price increase of whole set equipment.
Summary of the invention
The objective of the invention is provides a kind of method of manufacture of ceramic commutator material in order to solve existing reverser and the unmatched problem of existing ceramic electric brush.
Ceramic commutator material of the present invention is processed by the Cu powder of 3-6 part, the carbon black of 11.5-12 part, the Si powder of 13-14 part and the Ti powder of 68-71 part by weight.
The method of manufacture of ceramic commutator material of the present invention is following: one, the Cu powder of 3-6 weight part, the carbon black of 11.5-12 weight part, the Si powder of 13-14 weight part and the Ti powder of 68-71 weight part are mixed; Be immersed in the absolute ethyl alcohol then; Absolute ethyl alcohol liquid level height is 4/3～7/5 times of mixed powder height, dries powder after ball milling 12-24 hour again; Two, the powder after will drying is put into the metal die that diameter is 55mm-210mm, at room temperature, hydropress pressure is to process the preform that specific density is 50%-55% under the condition of 15MPa-16.5MPa; Three, preform is put into metallic reactors; Make precast billet rapid combustion with the instantaneous priming mixture that ignites of the heat of short circuited resistance silk, after waiting to burn 7 seconds-13 seconds, apply the pressure 28 seconds-32 seconds of 65MPa-75MPa; In quartzy sandbox, be cooled to room temperature then, promptly get ceramic commutator material; Wherein the space of preform described in the step 3 and metallic reactors inwall is filled up with silica sand.
Ceramic commutator material of the present invention is to have the self-lubricating material Ti of laminate structure
3SiC
2Be the main body framework structure, carry out the space with copper and supply.This structure decrease the consumption of copper in the reverser, increased the hardness of reverser simultaneously again, improved wear resistance.The frictional coefficient of the ceramic commutator material that employing the inventive method obtains is about 0.002-0.005; And ceramic commutator material exposed some months in air after; This value is still constant, under high-speed condition, and the ceramic commutator material and the Al that adopt the inventive method to obtain
2O
3Wear rate to being obtained after grinding is merely 3 * 10
-4Mm
3/ Nm adopts to reach 6 months the work-ing life of the ceramic commutator material that the present invention produces, and does not have friction noise, adopt the inventive method produce ceramic commutator material with short production cycle, with low cost, preparation technology is simple, and energy-saving and environmental protection.
Embodiment
Technical scheme of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: ceramic commutator material is processed by the Cu powder of 3-6 part, the carbon black of 11.5-12 part, the Si powder of 13-14 part and the Ti powder of 68-71 part by weight in this embodiment.
Embodiment two: what this embodiment and embodiment one were different is that ceramic commutator material is processed by the Cu powder of 3-6 part, the carbon black of 11.5-11.9 part, the Si powder of 13.4-13.9 part and the Ti powder of 68.5-70 part by weight.
Embodiment three: what this embodiment and embodiment one were different is that ceramic commutator material is processed by 6 parts Cu powder, 11.5 parts carbon black, 13.5 parts Si powder and 70 parts Ti powder by weight.
Embodiment four: what this embodiment and embodiment one were different is that ceramic commutator material is processed by 3 parts Cu powder, 11.9 parts carbon black, 13.9 parts Si powder and 71 parts Ti powder by weight.
Embodiment five: the method for manufacture of ceramic commutator material is following in this embodiment: one, the Cu powder of 3-6 weight part, the carbon black of 11.5-12 weight part, the Si powder of 13-14 weight part and the Ti powder of 68-71 weight part are mixed; Be immersed in the absolute ethyl alcohol then; Absolute ethyl alcohol liquid level height is 4/3～7/5 times of mixed powder height, dries powder after ball milling 12-24 hour again; Two, the powder after will drying is put into the metal die that diameter is 55mm-210mm, at room temperature, hydropress pressure is to process the preform that specific density is 50%-55% under the condition of 15MPa-16.5MPa; Three, preform is put into metallic reactors; Make precast billet rapid combustion with the instantaneous priming mixture that ignites of the heat of short circuited resistance silk, after waiting to burn 7 seconds-13 seconds, apply the pressure 28 seconds-32 seconds of 65MPa-75MPa; In quartzy sandbox, be cooled to room temperature then, promptly get ceramic commutator material; Wherein the space of preform described in the step 3 and metallic reactors inwall is filled up with silica sand.
Embodiment six: what this embodiment and embodiment five were different is in the step 1 Cu powder of 3-6 weight part, the carbon black of 11.5-11.9 weight part, the Si powder of 13.4-13.9 weight part and the Ti powder of 68.5-70 weight part to be mixed.Other is identical with embodiment five.
Embodiment seven: what this embodiment and embodiment five were different is in the step 1 Cu powder of 6 weight parts, the carbon black of 11.5 weight parts, the Si powder of 13.5 weight parts and the Ti powder of 70 weight parts to be mixed.Other is identical with embodiment five.
Embodiment eight: what this embodiment and embodiment five were different is in the step 1 Cu powder of 3 weight parts, the carbon black of 11.9 weight parts, the Si powder of 13.9 weight parts and the Ti powder of 71 weight parts to be mixed.Other is identical with embodiment five.
Embodiment nine: what this embodiment and embodiment five were different is that hydropress pressure is 15.5MPa in the step 2.Other is identical with embodiment five.
Embodiment ten: this embodiment and embodiment five are different is that the specific density of preform in the step 2 is 50.5%-54.5%.Other is identical with embodiment five.
Embodiment 11: this embodiment and embodiment five are different is that the specific density of preform in the step 2 is 51%-54%.Other is identical with embodiment five.
Embodiment 12: this embodiment and embodiment five are different is that the specific density of preform in the step 2 is 51.5%-53.5%.Other is identical with embodiment five.
Embodiment 13: the specific density of preform is that 52%-53% is in the different step 2 of this embodiment and embodiment five.Other is identical with embodiment five.
Embodiment 14: this embodiment and embodiment five are different is that the specific density of preform in the step 2 is 52.5%.Other is identical with embodiment five.
Embodiment 15: what this embodiment and embodiment five were different is that applied pressure is 66MPa-74MPa in the step 3.Other is identical with embodiment five.
Embodiment 16: what this embodiment and embodiment five were different is that applied pressure is 67MPa-73MPa in the step 3.Other is identical with embodiment five.
Embodiment 17: what this embodiment and embodiment five were different is that applied pressure is 68MPa-72MPa in the step 3.Other is identical with embodiment five.
Embodiment 18: what this embodiment and embodiment five were different is that applied pressure is 70MPa in the step 3.Other is identical with embodiment five.
Claims (6)
1. the method for manufacture of a ceramic commutator material; The method of manufacture that it is characterized in that ceramic commutator material is following: one, the Cu powder of 3-6 weight part, the carbon black of 11.5-12 weight part, the Si powder of 13-14 weight part and the Ti powder of 68-71 weight part are mixed; Be immersed in the absolute ethyl alcohol then; Absolute ethyl alcohol liquid level height is 4/3～7/5 times of mixed powder height, dries powder after ball milling 12-24 hour again; Two, the powder after will drying is put into the metal die that diameter is 55mm-210mm, at room temperature, hydropress pressure is to process the preform that specific density is 50%-55% under the condition of 15MPa-16.5MPa; Three, preform is put into metallic reactors; Make precast billet rapid combustion with the instantaneous priming mixture that ignites of the heat of short circuited resistance silk, after waiting to burn 7 seconds-13 seconds, apply the pressure 28 seconds-32 seconds of 65MPa-75MPa; In quartzy sandbox, be cooled to room temperature then, promptly get ceramic commutator material; Wherein the space of preform described in the step 3 and metallic reactors inwall is filled up with silica sand.
2. the method for manufacture of ceramic commutator material according to claim 1 is characterized in that in the step 1 Cu powder of 3-6 weight part, the carbon black of 11.5-11.9 weight part, the Si powder of 13.4-13.9 weight part and the Ti powder of 68.5-70 weight part being mixed.
3. the method for manufacture of ceramic commutator material according to claim 1 is characterized in that in the step 1 Cu powder of 6 weight parts, the carbon black of 11.5 weight parts, the Si powder of 13.5 weight parts and the Ti powder of 70 weight parts being mixed.
4. the method for manufacture of ceramic commutator material according to claim 1 is characterized in that in the step 1 Cu powder of 3 weight parts, the carbon black of 11.9 weight parts, the Si powder of 13.9 weight parts and the Ti powder of 71 weight parts being mixed.
5. the method for manufacture of ceramic commutator material according to claim 1 is characterized in that hydropress pressure is 15.5MPa in the step 2.
6. the method for manufacture of ceramic commutator material according to claim 1, the specific density that it is characterized in that preform in the step 2 is 50.5%-54.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810137375A CN101386537B (en) | 2008-10-24 | 2008-10-24 | Preparation method of ceramic commutator material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810137375A CN101386537B (en) | 2008-10-24 | 2008-10-24 | Preparation method of ceramic commutator material |
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| Publication Number | Publication Date |
|---|---|
| CN101386537A CN101386537A (en) | 2009-03-18 |
| CN101386537B true CN101386537B (en) | 2012-09-19 |
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| CN200810137375A Expired - Fee Related CN101386537B (en) | 2008-10-24 | 2008-10-24 | Preparation method of ceramic commutator material |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817082A (en) * | 2010-05-17 | 2010-09-01 | 李忠杰 | Direct current motor commutator made from metal powder |
| CN104752934A (en) * | 2013-12-25 | 2015-07-01 | 苏州工业园区安固电器有限公司 | Novel commutator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1419985A (en) * | 2001-11-21 | 2003-05-28 | 中国科学院金属研究所 | Method for mfg. Cu/Ti3SiC2 composite material by chemical copper plating |
| JP2005281084A (en) * | 2004-03-30 | 2005-10-13 | Tungaloy Corp | Sintered compact and manufacturing method therefor |
| CN1824815A (en) * | 2006-02-08 | 2006-08-30 | 哈尔滨工业大学 | Self-spreading quasi-thermo-isostatic pressing method for preparing large size high-pure Ti3A1C2 |
-
2008
- 2008-10-24 CN CN200810137375A patent/CN101386537B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1419985A (en) * | 2001-11-21 | 2003-05-28 | 中国科学院金属研究所 | Method for mfg. Cu/Ti3SiC2 composite material by chemical copper plating |
| JP2005281084A (en) * | 2004-03-30 | 2005-10-13 | Tungaloy Corp | Sintered compact and manufacturing method therefor |
| CN1824815A (en) * | 2006-02-08 | 2006-08-30 | 哈尔滨工业大学 | Self-spreading quasi-thermo-isostatic pressing method for preparing large size high-pure Ti3A1C2 |
Non-Patent Citations (2)
| Title |
|---|
| 张毅 等.Ti3SiC2弥散强Cu：一种新的弥散强化铜合金.《金属学报》.2000,第36卷(第6期),662-666. * |
| 韩桂泉 等.钛碳化硅陶瓷制备方法综述.《甘肃科技》.2007,第23卷(第10期),62-65. * |
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| CN101386537A (en) | 2009-03-18 |
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Granted publication date: 20120919 Termination date: 20131024 |