CN1032741C - Pantograph slide board of electric locomotive and its making method - Google Patents
Pantograph slide board of electric locomotive and its making method Download PDFInfo
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- CN1032741C CN1032741C CN 93111950 CN93111950A CN1032741C CN 1032741 C CN1032741 C CN 1032741C CN 93111950 CN93111950 CN 93111950 CN 93111950 A CN93111950 A CN 93111950A CN 1032741 C CN1032741 C CN 1032741C
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- slide plate
- basal body
- electric locomotive
- carbon
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Abstract
The present invention relates to a manufacture method of an electric locomotive pantograph slide plate, which comprises a carbon basal body, wherein the carbon basal body is made of carbon powder materials, in which a small amount of some kind of metallic oxide powder is added, then the basal body is impregnated with copper alloy which comprises a small amount of segregation preventing agents, and finally the basal body is processed into the required size by a machine. The used copper alloy can evenly and quickly impregnate into pores of the carbon basal body, so the physical mechanical properties of the slide plate is improved. The slide plate is suitable for being used as a current collecting element on a pantograph of an electric locomotive which is operated on various contact net conducting wire electric railway sections.
Description
The present invention is the special equipment field that belongs to the electric locomotive traction power plant about a kind of slide plate and manufacture method thereof that is used on the block of bow collector of electric locomotive.
The slide plate that uses on the railway block of bow collector of electric locomotive has the plain slide plate of pure carbon, partial metallurgy slide plate and impregnating metal carbon element slide plate now.The plain slide plate of pure carbon is good to the contact line conducting wire anti-attrition, particularly fine to the anti-attrition of copper contact line conducting wire, but because self intensity is lower, the crisp frangibility of property, so service life is shorter.The partial metallurgy slide plate, the intensity height, resistance to abrasion is good, long service life, but because self-lubricity is poor, to contact line conducting wire, particularly big to the abrasion of copper contact line conducting wire.And the dipping copper alloy carbon element slide plate that uses at present, because what use is ordinary copper lead alloy (containing Cu70% weight and Pb30% weight), easily segregation behind this alloy molten makes the properties of product inequality behind the dipping, is prone to crack defect.
The purpose of this invention is to provide a kind of intensity height, resistance to abrasion is good, and is good to all kinds of contact line conducting wire anti-attritions, particularly good to the anti-attrition of copper contact line conducting wire, and the railway electric locomotive pantograph sliding plate and the manufacture method thereof of performance homogeneous.
The object of the present invention is achieved like this: by weight, and 65～75% living pitch coke powder powder, 5～10% cryptocrystalline graphite powder, 5～10% channel black and 10% following Fe
2O
3Powder mixes with molten asphalt with respect to aforementioned solid powder total amount 30～40%, and incorporation time and temperature control are suitable.Mixture is shaped to the carbon bar of certain size with mold pressing or extrusion process, places moulding carbon bar 1250～1350 ℃ of roasting temperatures to be no less than 120h.Carbon bar after the roasting is packed in the black lead crucible, places preheating 30～60mim in the electric furnace more than 1000 ℃.Take out then, the copper alloy that fusion is good is poured in the crucible, and made molten metal submergence carbon bar.Immediately crucible is placed in the autoclave, to imposing the pressure of 23～30MPa in the still, and keep 2～5min with air.After the pressure release, pour out molten metal, take out the carbon bar and under secluding air, be cooled to room temperature.Be refined to the drawing dimensional characteristic at last.In case of necessity again at product bottom clad metal supporting plate with install and fix screw.The copper alloy of above-mentioned dipping usefulness, forming (by weight) is Pb15～20%, Sn8～10%, Si and Ni are 1～2%, and surplus is Cu.
Among the present invention, owing to added a spot of Fe in the solid powder prescription
2O
3Powder has improved the wellability of alloy to the carbon bar, and the performance that makes product is homogeneous more.Used alloy not only has the intensity height, the characteristics that resistance to abrasion is good, and overcome segregation defective behind the alloy molten.Therefore, the slide plate of manufacturing, anti-folding, resistance to compression and excellent in cushion effect are 4～5 times of the plain slide plate of pure carbon, and resistance to abrasion improves 4 times, and self lubricity is good, and is close with pure carbon element slide plate to the specific wearability of copper contact line conducting wire, but has only 1/4～1/6 of partial metallurgy slide plate.Anti-attrition to the contact line conducting wire of other materials is also fine.The slide plate that the inventive method is made can be widely applicable on the block of bow collector of electric locomotive that moves on all kinds of contact line conducting wire electric railway sections and make the afflux element.
Fig. 1 is the front view of the slide plate of the present invention bottom clad metal supporting plate.
Fig. 2 is the cutaway view of A among Fig. 1-A direction.
In order to further specify the present invention, be illustrated with embodiment and Comparative Examples below.
Embodiment 1:
By weight, 73% living pitch coke powder, 10% cryptocrystalline graphite powder, 9% channel black and 8% Fe
2O
3Powder is after the molten asphalt that is equivalent to above-mentioned solid powder total amount 35% mixes, at 150MP
aBe molded into the slide plate carbon basal body carbon bar of 290 * 40 * 30 (mm) under the pressure, the carbon bar is heated to 1300 ℃ in calciner, and total time is 120h.The bulk density of burning carbon bar is 1.6g/cm
3, apparent porosity 19.4%, compressive strength 101MP
aThen, the prtreatment of burning carbon bar is become the carbon bar of 275 * 38 * 26 (mm) after, be loaded in the black lead crucible, charcoal grain on the face loam cake is put into electric furnace in 1150 ℃ of following heating 40min together with one in crucible.Simultaneously, will form weight ratio is Pb17%, Sn7%, Si1.7% and Ni1.3%, and surplus is that the copper alloy of Cu places fusion under 1250 ℃ of temperature.Then, take out the good crucible that the carbon bar is housed of preheating, the copper alloy good fusion injects, and the carbon bar all is immersed in the alloy liquid.At this moment, immediately crucible is placed in the autoclave, with air to being forced into 30MP in the still
a, keep pressure 2.5min.At last, alloy liquid is removed in pressure release, and the carbon bar that takes out after flooding is cooled to room temperature under secluding air.Through performance testing, the copper alloy content that soaks back carbon bar is 41%, bulk density 2.85g/cm
3, apparent porosity 0.4%, compressive strength 359MP
a, rupture strength 110MPa, electrical resistivity 7 μ Ω m.Carbon bar behind the dipping is refined to the drawing requirement, and metal supporting plate and screw are loaded onto in the bottom.On-the-spot result on trial: use on the copper contact line conducting wire, slide plate self wear resistance ratio is 2mm/10
4Km is 0.19mm to the wear resistance ratio of copper contact line conducting wire
2/ 10
4Km.
Embodiment 2
Press the method for embodiment 1, Fe
2O
3Consumption is taken as 4%, and forming pressure is taken as 130MP
aPrepared burning carbon bar, bulk density are 1.54g/cm
3, apparent porosity 21%, compressive strength 117MP
aThen, be P with the composition weight ratio
b15%, S
n9%, Si1.4% and Ni1.7%, surplus is that the molten alloyed copper of Cu floods by the method for embodiment 1.The performance of gained dipping back carbon bar is: bulk density 3.0g/cm
3, apparent porosity 1%, compressive strength is 357MP
a, rupture strength is 95MP
a, copper alloy content is 42%.
Comparative example 1
Press the method for embodiment 1, solid powder does not add Fe in forming
2O
3Powder.Made burning carbon bar, bulk density are 1.52g/cm
3, apparent porosity is 23%, compressive strength is 68MP
aCarbon bar behind the dipping copper alloy, bulk density is 2.8g/cm
3, apparent porosity is 5%, compressive strength is 250MP
a, rupture strength is 80MP
a, alloy distributes and forms tangible gradient, performance heterogeneity from the inside to surface in the carbon bar.
Comparative example 2
By the burning carbon bar that the method for embodiment 1 is made, be the copper alloy dipping of Cu70% and Pb30% with the composition weight ratio.Carbon bar behind the dipping, bulk density are 3.1g/cm
3, apparent porosity is 4%, compressive strength is 260MP
a, rupture strength is 85MP
a, carbon bar performance heterogeneity, and have 20% carbon bar to have crack defect approximately.
Claims (7)
1. the first car pantograph slide plate of electric power comprises carbon basal body and the copper lead alloy that immerses this matrix, it is characterized in that containing in the carbon basal body the following Fe of 10% weight
2O
3, contain the tin (Sn) of 7～1O% weight, the block of bow collector of electric locomotive slide plate of the nickel (Ni) of silicon of 1～2% weight (Si) and 1～2% weight in the copper lead alloy.
2. slide plate according to claim 1 is characterized in that containing in the carbon basal body Fe of 4～8% weight
2O
3The block of bow collector of electric locomotive slide plate.
3. slide plate according to claim 1 and 2 is characterized in that containing in the copper lead alloy Sn of 7～9% weight, the block of bow collector of electric locomotive slide plate of the Ni of the Si of 1.4～1.7% weight and 1.3～1.7% weight.
4. a block of bow collector of electric locomotive comprises the manufacturing of carbon basal body with the manufacture method of slide plate, to the machine up of carbon basal body with molten copper lead alloy dipping and goods, it is characterized in that adding the Fe below 10% weight in carbon basal body manufacturing prescription
2O
3Powder dissolves the Sn that adds 7～10% weight in the copper lead alloy, the block of bow collector of electric locomotive of the Ni of the Si of 1～2% weight and 1～2% weight manufacture method of slide plate.
5. method according to claim 4 is characterized in that adding in the carbon basal body manufacturing prescription Fe of 4～8% weight
2O
3Block of bow collector of electric locomotive with the manufacture method of slide plate.
6. according to claim 4 or 5 described methods, it is characterized in that adding in the molten copper lead alloy 7～9% weight Sn, the block of bow collector of electric locomotive of the Ni of the Si of 1.4～1.7% weight and 1.3～1.7% weight manufacture method of slide plate.
7. according to claim 1,2 or 3 described slide plates, it is characterized in that being exclusively used in and make the afflux element on the railway dragging block of bow collector of electric locomotive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111950 CN1032741C (en) | 1993-08-24 | 1993-08-24 | Pantograph slide board of electric locomotive and its making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111950 CN1032741C (en) | 1993-08-24 | 1993-08-24 | Pantograph slide board of electric locomotive and its making method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1099343A CN1099343A (en) | 1995-03-01 |
| CN1032741C true CN1032741C (en) | 1996-09-11 |
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ID=4989699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93111950 Expired - Fee Related CN1032741C (en) | 1993-08-24 | 1993-08-24 | Pantograph slide board of electric locomotive and its making method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032741C (en) |
Cited By (1)
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|---|---|---|---|---|
| CN101863234B (en) * | 2009-04-20 | 2012-06-06 | 摩根新材料(上海)有限公司 | Metal-impregnated carbon slide for current collectors of maglev trains and current collector |
| CN102031440B (en) * | 2011-01-12 | 2012-06-27 | 武汉理工大学 | Modified copper-based pantograph sliding material and preparation method |
| CN102898143B (en) * | 2012-09-04 | 2014-05-07 | 天津锦美碳材科技发展有限公司 | Preparation method for carbon slider used for assembling pantograph of electric locomotive |
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| CN107557605A (en) * | 2016-06-30 | 2018-01-09 | 苏州东南佳新材料股份有限公司 | A kind of impregnating metal material of magnetic suspension train carbon sliding block |
| CN108340785A (en) * | 2018-03-26 | 2018-07-31 | 大同新成新材料股份有限公司 | A kind of air flue bracket integral type pantograph carbon slide and its production method |
| CN108358637A (en) * | 2018-04-02 | 2018-08-03 | 大同新成新材料股份有限公司 | A kind of bauxite beta-Sialon carbon slipper preparation process |
| 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 |
-
1993
- 1993-08-24 CN CN 93111950 patent/CN1032741C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480927B (en) * | 2009-03-02 | 2011-01-12 | 浙江师范大学 | Netted sintered carbon-copper composite material pantograph pan and method for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1099343A (en) | 1995-03-01 |
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