CS259258B1 - Metal-graphite material with film's polishing capacity for 12 v starters - Google Patents
Metal-graphite material with film's polishing capacity for 12 v starters Download PDFInfo
- Publication number
- CS259258B1 CS259258B1 CS864601A CS460186A CS259258B1 CS 259258 B1 CS259258 B1 CS 259258B1 CS 864601 A CS864601 A CS 864601A CS 460186 A CS460186 A CS 460186A CS 259258 B1 CS259258 B1 CS 259258B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- film
- starters
- metal
- graphite material
- graphite
- Prior art date
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 7
- 239000007858 starting material Substances 0.000 title claims description 8
- 239000007770 graphite material Substances 0.000 title description 2
- 239000000463 material Substances 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims 1
- 238000005555 metalworking Methods 0.000 abstract 2
- 238000004870 electrical engineering Methods 0.000 abstract 1
- 238000011089 mechanical engineering Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
Účelom riešenia je zabezpečit vysokú tvrdost a pevnosť kovografitového materiálu s leštiacou schopnosťou filmu. Uvedeného účelu sa dosiahne zabezpečením kryštalickej štruktúry kovografitu kombináciou východzích surovin a technologického postupu. Kovografit s leštiacou schopnosťou filmu sa može využívať v elektrotechnickom a strojárskom priemysleThe purpose of the solution is to ensure high hardness and the strength of the metalworking material s polishing ability of the film. That purpose is achieved by providing crystalline structure of metalworking by a combination of starting points raw materials and technological process. Kovografit with the polishing ability of the film can be used in electrical and mechanical engineering industry
Description
Vynález sa týká kovografitového materiálu s leštíacou schopnosťou filmu na 12 V spúšťačoch.BACKGROUND OF THE INVENTION The present invention relates to a metallographic material having a film polishing capability of 12V starters.
Doteraz používaný kovografitový materiál pre 12 V spušťače obsahuje velké množstvo médi a malý obsah grafitu. Použitý grafit je vločkový s nízkým obsahom popola. Obsah popola je menší ako 6—7 %. Nevýhodou doteraz používaného materiálu je malá tvrdost a pevnosť vzhladom na použitie velkého množstva kovu a vločkových krystalických zřn prírodného grafitu.The metal-graphite material used so far for 12 V starters contains a large amount of media and low graphite content. The graphite used is a flake with a low ash content. The ash content is less than 6-7%. A disadvantage of the material used so far is the low hardness and strength due to the use of large amounts of metal and flake crystalline grains of natural graphite.
Uvedené nedostatky odstraňuje kovografitový materiál s leštiacou schopnosťou filmu na 12 V spúšťačoch podlá vynálezu, ktorého podstatou je, Že materiál pozostáva z 55 až 70 °/o médi, 6—12 % olova, 0,5—3 °/o koksovacieho zvyšku a obsahuje 15—38,5 % grafitu s obsahom popola nad 10 % s malými krystalickými zrnami, kde 80 °/o krystalických častíc je menších ako 100 mikrometrov. Vynález zabezpečuje vysakú tvrdost a pevnosť materiálu. Krystalická konfigurácia jednotlivých komponentov a zvolený obsah popola v grafite zaisťujú tvorbu filmu na komutátore startéra a jeho hladký povrch. Kovografitový materiál aj pri menšom obsahu kovu zabezpečuje přenos elektrického prúdu z kief do komutátora a výkon spúšťača.The above-mentioned drawbacks are eliminated by a metallographic material having a film-polishing capability of the 12-volt starters of the invention, which consists in that the material consists of 55-70% of the medium, 6-12% lead, 0.5-3% of the coke residue and contains 15-38.5% graphite with an ash content above 10% with small crystalline grains, where 80% of the crystalline particles are less than 100 microns. The invention ensures high hardness and strength of the material. The crystalline configuration of the individual components and the selected ash content in the graphite ensure film formation on the starter commutator and its smooth surface. Even with a lower metal content, the metallographic material ensures the transfer of electrical current from the brushes to the commutator and the starter output.
Kovografitový materiál s leštiacou schopnosťou filmu na 12 V spúšťačoch možno využiť v elektrotechnickom priemysle.Metallographic material with film polishing capability on 12 V starters can be used in the electrical industry.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS864601A CS259258B1 (en) | 1986-06-23 | 1986-06-23 | Metal-graphite material with film's polishing capacity for 12 v starters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS864601A CS259258B1 (en) | 1986-06-23 | 1986-06-23 | Metal-graphite material with film's polishing capacity for 12 v starters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS460186A1 CS460186A1 (en) | 1988-02-15 |
| CS259258B1 true CS259258B1 (en) | 1988-10-14 |
Family
ID=5389149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS864601A CS259258B1 (en) | 1986-06-23 | 1986-06-23 | Metal-graphite material with film's polishing capacity for 12 v starters |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS259258B1 (en) |
-
1986
- 1986-06-23 CS CS864601A patent/CS259258B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS460186A1 (en) | 1988-02-15 |
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