CN1015091B - The trolley bus collector-block produced via iron-based powder metallurgy material - Google Patents
The trolley bus collector-block produced via iron-based powder metallurgy materialInfo
- Publication number
- CN1015091B CN1015091B CN 88106804 CN88106804A CN1015091B CN 1015091 B CN1015091 B CN 1015091B CN 88106804 CN88106804 CN 88106804 CN 88106804 A CN88106804 A CN 88106804A CN 1015091 B CN1015091 B CN 1015091B
- Authority
- CN
- China
- Prior art keywords
- collector
- powder metallurgy
- block
- based powder
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Abstract
The trolley bus collector-block produced via iron-based powder metallurgy material.The invention relates to the trackless trolley car made from the powder metallurgic method research of current collector element.Its collector-block material of developing adopts the new material prescription, and adopts powder metallurgy process to make.Mainly graphite and the lead that contains 5-10 in its material prescription, the molybdenum disulphide of 1-5% and the iron of surplus, the collector-block life-span that the trackless trolley car made from this material is used is long, the electric conductivity height.Resistance to abrasion is strong.Economical and practical.
Description
The invention belongs to the trackless trolley car current collector element made from powder metallurgic method.
At present, in China big and medium-sized cities on the trackless trolley car all collector-blocks all adopt whole graphite materials to make, also claim graphite slider, this graphite slider is because the raw material-graphite material friction coefficient height that is adopted, during electric conductivity becomes, and the electrical resistivity fluctuation range is big, make the graphite slider quality not good, not wear-resisting easily cracked, this according to investigations general life-span of graphite slider is three days, and this in addition slide block is also owing to being subjected to its weather effect to cause its performance variation, so when chance and sleety weather, the graphite slider abrasion are rapid, and the life-span only is one day.So just brought very big inconvenience, increased driver and conductor's work capacity to the driver and conductor, promptly impracticable also uneconomical.
In addition, based on the electric conductivity to current-collecting member, higher to the anti-attrition performance and the big performance requriements of life-spans three of lead, what abroad have at present has adopted metal graphite composite material, adopting iron powder as Japan is Main Ingredients and Appearance, in addition compounds such as lead, graphite, molybdenum disulphide in addition.But concrete proportioning is not quite clear, and all not ideal enough from self, the electric conductivity of slide block in life-span.
Purpose of the present invention for this reason just is to develop a kind of new sliding block material prescription.To replace existing not abrasion resistant sliding block material prescription, a kind of practicality, economy, the long metallurgical collector-block of novel powder of life-span are provided, and then solve existing practical problems in the prior art.
Technical essential of the present invention just is with iron to be fundamental component, graphitiferous, interpolation lead element, and molybdenum disulphide.Its base recipe is: (weight ratio)
Iron surplus
Graphite 5%-10%
Plumbous 5%-10%
Molybdenum disulphide 1%-5%
Produce partial metallurgy collector-block material of the present invention, its needed technology is roughly the same with other sintered metal products of production, mainly contains four procedures, that is: batch mixing-compacting-sintering-immersion oil.
Below in conjunction with embodiment, technology contents of the present invention is described:
84 kilograms of iron surplus
6% 6 kilograms in graphite
Plumbous 8% 8 kilograms
2% 2 kilograms of molybdenum disulphides
After several raw materials are assorted, be prepared by its batch mixing-compacting-sintering-immersion oil four procedures, several prepared using mechanical means mix in being about to fill a prescription, and make various element rectangular distributions.Its mechanical means can select for use V type batch mixer to carry out mechanical batch mixing.Utilize hydraulic compressor behind the batch mixing again, mixed raw material is packed in the punching block, make by pressure and utilize the mechanical engagement method to form slug press in the raw material between the particle; The sintering furnace of pressure-formed blank being put into gas shield formed under the high temperature about 1080 ℃ in sintering 2-2.5 hour, and the workpiece behind the sintering has had desired physical and mechanical properties; The hole that forms in the sintered body will be the warehouse of storage lubricating oil, utilize this characteristics, and sintered body is immersed in about 140 ℃ of-160 ℃ of lubricating oils of temperature, park about 2 hours under vacuum condition, make it sintered body and contain the 12%(volume ratio) lubricating oil.After above-mentioned processing, utilize the method for machine up to carry out the correction of blank surface at last again, coat anti-corrosion oil, the packing box of packing into.So far finish whole preparation process.
Prepared ferrous based powder metallurgical collector-block and the domestic existing graphite slider that comes out carried out performance ratio, and its result is as follows:
Kind self life-span (my god)
Graphite slider 3
Partial metallurgy slide block 30-44
Electric conductivity is to the abrasion mm/ day of lead
2.63×10
-2Ωm 0.09
1.35×10
-3Ωm 0.0016
As can be seen from the above table: (1) ferrous based powder metallurgical slide block life-span surpasses the graphite slider life-span more than 10 times.(2) electric conductivity of ferrous based powder metallurgical surpasses 19.4 times of graphite sliders.(3) the ferrous based powder metallurgical slide block is 56 times of graphite slider to lead anti-attrition performance.
In addition, the collector-block of collector-block of the present invention with Japan compared, the former is better than the latter on life-span, electric conductivity and anti-attrition performance.
Claims (1)
- A kind of ferrous based powder metallurgical collector-block material that contains iron, graphite, lead, molybdenum disulphide; It is characterized in that base recipe is: (weight ratio)Iron surplusGraphite 5%-10%Plumbous 5%-10%Molybdenum disulphide 1%-5%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88106804 CN1015091B (en) | 1988-09-16 | 1988-09-16 | The trolley bus collector-block produced via iron-based powder metallurgy material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88106804 CN1015091B (en) | 1988-09-16 | 1988-09-16 | The trolley bus collector-block produced via iron-based powder metallurgy material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1041135A CN1041135A (en) | 1990-04-11 |
| CN1015091B true CN1015091B (en) | 1991-12-18 |
Family
ID=4834384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88106804 Expired CN1015091B (en) | 1988-09-16 | 1988-09-16 | The trolley bus collector-block produced via iron-based powder metallurgy material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1015091B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061279C (en) * | 1996-06-21 | 2001-01-31 | 李琎 | Method for producing Fe-Al or Fe-3Al metal meta-compound elements |
| CN102764892A (en) * | 2011-05-04 | 2012-11-07 | 山东金聚粉末冶金有限公司 | Slider block and production method thereof |
| CN102904145A (en) * | 2012-10-26 | 2013-01-30 | 海门市通达碳业有限公司 | Production process of wear-resistant electric brush |
| CN103332120B (en) * | 2013-07-04 | 2016-08-24 | 南车株洲电力机车有限公司 | A kind of pantograph carrying static big electric current and bow thereof |
| CN107856541B (en) * | 2017-11-09 | 2020-09-01 | 重庆懿虹科技发展有限责任公司 | Preparation method of main carbon strip structure of pantograph carbon slide plate |
| CN107878205B (en) * | 2017-11-09 | 2020-09-01 | 重庆懿虹科技发展有限责任公司 | Oil-immersed pantograph carbon slide plate main carbon strip structure |
| CN107878211A (en) * | 2017-11-10 | 2018-04-06 | 国网四川雅安电力（集团）股份有限公司 | It is a kind of suitable for city and fastlink without restricted type trolleybus dynamical system |
| CN111269021B (en) * | 2018-12-05 | 2021-12-07 | 深圳市比亚迪锂电池有限公司 | Copper-iron-carbon composite sliding plate and preparation method and application thereof |
-
1988
- 1988-09-16 CN CN 88106804 patent/CN1015091B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1041135A (en) | 1990-04-11 |
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| GR02 | Examined patent application | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |