DE870348C - Piston rings suitable for high pressure oxygen compressors - Google Patents
Piston rings suitable for high pressure oxygen compressorsInfo
- Publication number
- DE870348C DE870348C DEG5702A DEG0005702A DE870348C DE 870348 C DE870348 C DE 870348C DE G5702 A DEG5702 A DE G5702A DE G0005702 A DEG0005702 A DE G0005702A DE 870348 C DE870348 C DE 870348C
- Authority
- DE
- Germany
- Prior art keywords
- piston rings
- oxygen
- rings according
- high pressure
- binder
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims description 15
- 239000001301 oxygen Substances 0.000 title claims description 15
- 229910052760 oxygen Inorganic materials 0.000 title claims description 15
- 239000011230 binding agent Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910021382 natural graphite Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 claims description 2
- 150000004760 silicates Chemical class 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims 1
- 239000004568 cement Substances 0.000 claims 1
- 239000011507 gypsum plaster Substances 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Compressor (AREA)
Description
Für Sauerstoff-Hochdruckkompressoren geeignete Kolbenringe Die Erfindung betrifft die Herstellung von Kolbenringen für Sauerstoff-Hochdruckkomprebsoren.Piston rings suitable for high pressure oxygen compressors The invention relates to the manufacture of piston rings for high pressure oxygen compressors.
Es ist bekannt, hei der Verdichtung von Sajuerstoff in Kolbenkompressoren bis 5 atü Kolbenringe aus künstlichem Graphit (Elektrographit) zu verwenden. Dabei machen die schmierenden Eigenschaften des Graphits den Gebrauch eines besonderen Schmiermittels, wie Wasser oder 01, entbehrlich.It is known to use piston rings made of artificial graphite (electrographite) for the compression of hydrogen in reciprocating compressors up to 5 atmospheres. The lubricating properties of graphite make the use of a special lubricant, such as water or oil, unnecessary.
Zur Kompression von Sauerstoff auf höheren Druck, z. B. i5o atü, können Ringe aus Elektrographit nicht verwendet werden, weil Elektrographit bei dem hohen im Kompressor auftretenden Druck im Sauerstoff bereits zünden kann.To compress oxygen to higher pressure, e.g. B. i5o atü, can Electrographite rings are not used because electrographite is high pressure occurring in the compressor in the oxygen can already ignite.
Es wurde nun gefunden, daß es unter den Naturgraphiten, z. B. Bayerischem Flockengraphit, Flinzgraphit und Ceylongraphit, solche gibt, die selbst bei einer Anfangstemperatur von 230° nicht .durch adiubati.sche Sauerstoffdruckstöße von i5o atü gezündet werden können.It has now been found that among the natural graphites, e.g. B. Bavarian Flake graphite, flake graphite and Ceylon graphite, there are those that even with one Initial temperature of 230 ° not due to adiubatic oxygen pressure surges of 150 atü can be ignited.
Erfirdungsgemäß werden derartige sauerstoffunempfindliche Naturgraphite zum Herstellen von Kolbenringen für Hochdrucksauerstoffkompressoren verwendet.According to the invention, such oxygen-insensitive natural graphites are made used to make piston rings for high pressure oxygen compressors.
Dem Graphit muß als weiterer Bestandteil ein Bindemittel zugesetzt werden, damit -die im Kolbenring erforderliche mechanische Festigkeit erzielt wird.A binder must be added to the graphite as a further component so that -the mechanical strength required in the piston ring is achieved.
Als Bindemittel, mit denen der Naturgraphit gemischt wird, sind nur solche Stoffe geeignet, die nicht wesentlich empfindlicher gegen Sauerstoff als Naturgraphit sind und die eine geringere Härte als das Zylindermaterial des Verdichters aufweisen. Solche Bindemittel sind z. B. Metalle in Form feinster Pulver. Sie müssen praktisch unbrennbar sein, d. h. adiabatischen Sauerstofdruckstößen bei hoher Temperatur und hohem Druck widerstehen und geringere Härte als die Zylinderwand :des Verdichters aufweisen, z. B. Aluminium, Kupfer, Silber, .deren @IIischungen und Legierungen.The only binders with which the natural graphite is mixed are suitable substances that are not significantly more sensitive to oxygen than Are natural graphite and have a lower hardness than the cylinder material of the compressor exhibit. Such binders are e.g. B. Metals in the form of the finest Powder. They must be practically incombustible, i. H. adiabatic oxygen surges withstand high temperature and high pressure and lower hardness than the cylinder wall : of the compressor, e.g. B. aluminum, copper, silver, their mixtures and alloys.
Auch nicht metallische unbrennbare Stoffe; wie Oxyde; Sulfate; Silicate, können als Bindemittel verwendet werden, sofern sie nicht härter als die Zylinderwand sind , z. B. Talkum oder Gips.Also non-metallic, non-combustible materials; like oxides; Sulfates; Silicates, can be used as a binder, provided it is not harder than the cylinder wall are e.g. B. talc or gypsum.
Zur Herstellung der Kolbenringe werden Naturgraphit und Bindemittel in Pulverform gemischt und bei Drücken über ioofo kg/cm2 gepreßt, wobei die Mischung bereits eine ausreichende Festigkeit erhält und durch Abdrehen leicht in -die gewünschte Form gebracht werden kann. Durch Pressen in einer Form kann die gewünschte Gestalt auch ohne Nachbearbeitung erreicht werden.Natural graphite and binders are used to manufacture the piston rings mixed in powder form and pressed at pressures above ioofo kg / cm2, the mixture Already has sufficient strength and can easily be turned into the desired one by twisting it off Form can be brought. Pressing in a mold can produce the desired shape can also be achieved without post-processing.
Die Festigkeit kann unter Umständen noch weiter durch zusätzliches Sintern erhöht werden, das bei einer Temperatur unterhalb des Schmelzpunktes des Bindemittels erfolgt.The strength can possibly be further increased by additional Sintering can be increased at a temperature below the melting point of the Binder takes place.
Für die Herstellung der Ringe seien einige Beispiele angeführt: r. ioTeilegemahlenerBayerischerFlockengraphit werden mit go Teilen Aluminiumpulver vermischt und in einer Stahlform bei 40oo. kg/cm2 zu einen i Ring der gewünschten Abmessungen gepreßt. Der Ring kann in dieser Form in .den Verdichterkolben eingebaut werden.A few examples are given for the production of the rings: r. io parts of ground Bavarian flake graphite are mixed with go parts of aluminum powder mixed and in a steel mold at 40oo. kg / cm2 to an i ring of the desired Dimensions pressed. The ring can be built into the compressor piston in this form will.
2. 4o Teile gemahlener Ceylongraphit werden mit 6o Teilen elektrolytisch abgeschiedenen Kupferpulvers gemischt, mit 2oo:o kg/cm2 gepreßt und anschließend unter Sauerstoffabschluß bei 5oo° C gesintert. Der Werkstoff läßt sich leicht durch Drehen bearbeiten.2. 40 parts of ground Ceylon graphite are electrolytic with 60 parts deposited copper powder mixed, pressed with 2oo: o kg / cm2 and then sintered with the exclusion of oxygen at 500 ° C. The material can be easily passed through Edit turning.
Man setzt bei großen Kolbendurchmessern die Ringe aus einzelnen Segmenten zusammen. Um eine dauerhafte Verbindung der Segmente zu erzielen, werden erfindungsgemäß ihre Enden verkupfert. Man verlötet sie dort mit einem Lot ausreichend hohen Schmelzpunktes, z. B. reinem Blei (Schmelzpunkt 327°) oder einem Messinglot.For large piston diameters, the rings are made from individual segments together. In order to achieve a permanent connection of the segments, according to the invention their ends copper-plated. They are soldered there with a solder with a sufficiently high melting point, z. B. pure lead (melting point 327 °) or a brass solder.
Man kann für die Verbindung der Segmente erfindungsgemäß auch Bindemittel verwenden"die bei der Kompressionsendtemperabur, z. B. i8o°, nicht plastisch werden und nicht sauerstoffempfindlicher sind als die Segmente selbst, z. B. Kitte, wie Bleiglätte, Glycerinkitt oder auf Wasserglasbasis aufgebaute Kitte.According to the invention, binders can also be used for connecting the segments use "which do not become plastic at the final compression temperature, e.g. 180 ° and are no more sensitive to oxygen than the segments themselves, e.g. B. putties, like Black lead, glycerine putty or putty based on water glass.
Die Erfindung bringt wesentliche Vorteile wirtschaftlicher Art: Sauerstoff kann trocken ohneVerwendung von Wasser als Schmiermittel auf hohe Drucke komprimiert werden, so daß es überflüssig ist, den Sauerstoff nach der Kompression zu trocknen. Die Kolbengeschwindigkeit kann gegenüber der bei bisher gebräuehlichen wassergeschmierten Verdichtern üblichen erhöht- werden: Die Laufzeiten der erfindungsgemäßen Kolbenringe sind größer ,als die der bei wassergeschmierten Verdichtern üblichen Leder- oder Kunststoffmanschetten.The invention brings essential advantages of an economical kind: Oxygen can be compressed dry to high pressures without using water as a lubricant so that there is no need to dry the oxygen after compression. The piston speed can be compared to the previously used water-lubricated Compressors are usually increased: The running times of the piston rings according to the invention are larger than the leather or leather seals commonly used in water-lubricated compressors Plastic sleeves.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG5702A DE870348C (en) | 1951-04-19 | 1951-04-19 | Piston rings suitable for high pressure oxygen compressors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG5702A DE870348C (en) | 1951-04-19 | 1951-04-19 | Piston rings suitable for high pressure oxygen compressors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE870348C true DE870348C (en) | 1953-03-12 |
Family
ID=7117888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEG5702A Expired DE870348C (en) | 1951-04-19 | 1951-04-19 | Piston rings suitable for high pressure oxygen compressors |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE870348C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1056423B (en) * | 1954-08-18 | 1959-04-30 | Philips Nv | Displacer for hot gas piston engines |
| DE102012112643A1 (en) * | 2012-12-19 | 2014-06-26 | Ald Vacuum Technologies Gmbh | Graphite matrix, useful for the preparation of a molded body to store radioactive waste, comprises graphite and a metallic binder |
-
1951
- 1951-04-19 DE DEG5702A patent/DE870348C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1056423B (en) * | 1954-08-18 | 1959-04-30 | Philips Nv | Displacer for hot gas piston engines |
| DE102012112643A1 (en) * | 2012-12-19 | 2014-06-26 | Ald Vacuum Technologies Gmbh | Graphite matrix, useful for the preparation of a molded body to store radioactive waste, comprises graphite and a metallic binder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3234376C1 (en) | Sealing ring | |
| DE2256326B2 (en) | Process for the production of a shaped body from a mixture of alpha silicon carbide, graphite and a binder | |
| DE1227373B (en) | Process for the production of fine-pored carbon molded bodies | |
| DE870348C (en) | Piston rings suitable for high pressure oxygen compressors | |
| DE1696715C (en) | ||
| DE2443769A1 (en) | SLIP RINGS FOR ELECTRIC MACHINERY | |
| DE1302877C2 (en) | Process for the production of a heat-resistant material containing carbon and boron | |
| AT159112B (en) | Process for improving the compressibility of metal powders. | |
| DE928151C (en) | Process for the production of molded hard coal bodies | |
| DE677996C (en) | Process for improving the compressibility of powder mixtures | |
| AT203223B (en) | Alloy for flints | |
| AT134710B (en) | Method and device for the production of seamless tubes or other molded articles from fiber material. | |
| DE2240884A1 (en) | Space between blast furnace wall and lining - filled with compacted graphite expandate | |
| DE2502517A1 (en) | METHOD OF PROCESSING FLUORINATED CARBON | |
| AT145606B (en) | Non-conductive support body for the electrodes of electrical discharge vessels. | |
| DE974882C (en) | Process for the production of fired compacts from non-plastic mineral raw materials | |
| DE372451C (en) | Process for the production of dynamo brushes made of metal and finely divided, infusible material, especially graphite | |
| AT217941B (en) | Process for the production of bodies from pure corundum | |
| DE902678C (en) | Process for the production of aluminum-silicon alloys | |
| DE2043406C3 (en) | Process for the production of limestone cinder blocks with the use of fly ash | |
| AT295382B (en) | Process for the production of a shaped body from refractory material | |
| AT115080B (en) | Process for the production of insulating walls. | |
| DE1671360B1 (en) | Process for hardening briquettes | |
| AT230333B (en) | Process for the production of carbon or graphite bodies made up of interconnected parts | |
| DE759209C (en) | Process for the production of stuffing box packing rings from flake graphite, especially for high temperatures |