DE2552071A1 - Rubber sheet for cladding metallic tubes or containers - esp. in chemical plant - Google Patents
Rubber sheet for cladding metallic tubes or containers - esp. in chemical plantInfo
- Publication number
- DE2552071A1 DE2552071A1 DE19752552071 DE2552071A DE2552071A1 DE 2552071 A1 DE2552071 A1 DE 2552071A1 DE 19752552071 DE19752552071 DE 19752552071 DE 2552071 A DE2552071 A DE 2552071A DE 2552071 A1 DE2552071 A1 DE 2552071A1
- Authority
- DE
- Germany
- Prior art keywords
- containers
- rubber sheet
- rubber
- coal
- carbon
- 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.)
- Withdrawn
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 12
- 239000005060 rubber Substances 0.000 title claims abstract description 12
- 239000000126 substance Substances 0.000 title description 2
- 238000005253 cladding Methods 0.000 title 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 3
- 239000002245 particle Substances 0.000 claims abstract description 3
- 239000010959 steel Substances 0.000 claims abstract description 3
- 239000003245 coal Substances 0.000 claims abstract 5
- 229920001875 Ebonite Polymers 0.000 claims abstract 2
- 239000000945 filler Substances 0.000 claims description 9
- 150000002739 metals Chemical class 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 abstract description 5
- 239000010439 graphite Substances 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 3
- 239000006229 carbon black Substances 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Kautschukfolie zum Auskleiden von Behältern oder Rohren aus MetallRubber sheeting for lining containers or pipes of metal
Die Erfindung betrifft eine kohlenstoffhaltige Füllstoffe enthaltende Kautschukfolie, insbesondere aus natürlichem oder synthetischem Kautschuk, zum Auskleiden von Behältern oder Rohren aus Stahl oder anderen Metallen.The invention relates to a carbonaceous filler Rubber sheeting, in particular made of natural or synthetic rubber, for lining of containers or pipes made of steel or other metals.
Diese bekannten Kautschukfolien, die als Füllstoffe Graphit oder Ruß enthalten, werden insbesondere in der chemischen Industrie verwendet, um Behälter oder Rohre gegen korrodierende Angriffe zu schützen. Sie haben sich hierfür gut bewährt, weil Ruß und Graphit chemisch sehr beständig sind.These well-known rubber sheets, which are used as fillers, are graphite or carbon black contain, are used in particular in the chemical industry to make containers or to protect pipes against corrosive attacks. You did this well proven, because soot and graphite are chemically very resistant.
Ein Nachteil dieser bekannten, Graphit oder RuB als Füllstoffe enthaltenden Folien besteht aber darin, daß die aus ihnen hergestellten Auskleidungen sich nicht mit Hilfe eines Hochspannungsprüfgerät auf Dichtigkeit oder auf das Vorhandensein von Poren prüfen lassen. Graphit und Ruß haben eine so hohe elektrische leitfähigkeit, daß eine Prüfung mit e einem Hochspannungsprüfgerät nur bei Anwendung besonderer Bedingungen oder gar nicht möglich ist. Andere Prüfverfahren sind aufwendiger und unsicher.A disadvantage of these known ones containing graphite or carbon black as fillers But foils consists in the fact that the linings made from them are not with the help of a high-voltage tester for leaks or the presence have pores checked. Graphite and soot have such a high electrical conductivity that that a test with a high-voltage tester is only possible when using special Conditions or not possible at all. Other test methods are more complex and unsure.
Aufgabe der Erfindung ist eine Folie der eingangs erwähnten Zusammensetzung, die eine derartig geringe elektrische Leitfähigkeit hat, daß aus ihr hergestellte Auskleidungen sich ohne weiteres auch bei einem hohen Gehalt an Füllstoffen elektrisch, z.B. mit einem Fgnkenprüfgerät, auf das Vorhandensein von Undichtigkeiten oder Poren prüfen lassen, ohne daß die anderen Eigenschaften, wie die gute Korrosionsbeständigkeit beeinträchtigt werden.The object of the invention is a film of the composition mentioned at the outset, which has such a low electrical conductivity that produced from it Linings are easily electrical even with a high content of fillers, e.g. with a paint tester, for the presence of leaks or pores can be tested without affecting the other properties, such as good corrosion resistance be affected.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die Folie als Füllstoff fein verteilte Kohle enthält. Die Leitfähigkeit solcher Folien ist gering.According to the invention this object is achieved in that the film as Filler contains finely divided charcoal. The conductivity of such films is low.
Vorzugsweise enthält die erfindungsgemäße Folie auf 100 Gewichtsteile Kautschuk 50 bis 90 Gewichtsteile Kohlenstaub. Wegen der schlechten teitfähigkeit des Kohlestaubes kann die Folie einen derartig hohen Gehalt an Füllstoffen enthalten, ohne daß hierdurch die elektrische Prüfbarkeit eingeschränkt wird.The film according to the invention preferably contains per 100 parts by weight Rubber 50 to 90 parts by weight coal dust. Because of the poor conductivity of the coal dust, the film can contain such a high content of fillers, without thereby restricting the electrical testability.
Als erfindungsgemäßer Füllstoff gut geeignet ist eine Kohle mit einem Kohlenstoffgehalt von 70 bis 90 %.A carbon with a is well suited as filler according to the invention Carbon content from 70 to 90%.
Gut herzustellen und zu verwenden sind Kautschukfolien, die ein Pulver aus Kohle mit Teilchendurchmessern bis 90 Mikron enthalten.Rubber sheeting, which is a powder, is good to manufacture and use made of carbon with particle diameters up to 90 microns.
Beispiel: Eine Kautschukfolie, die außer den üblichen Bestandteilen, wie Vulkanisationshilfsmitteln, Vulkanisationsbeschleunigern, Verarbeitungshilfsmitteln und dergleichen auf 100 Gewichtsteile Isoprenkautschuk 75 Gewichtsteile einer Anthrazitkohle mit 71,2 % Kohlenstoff und einer Körnung bis 90 Mikron enthielt, hat sich bei sehr guter Korrosionsbeständigkeit als gut mittels eines Funkenprüfgeräts prüfbar erwiesen.Example: A rubber sheet which, in addition to the usual components, such as vulcanization aids, vulcanization accelerators, processing aids and the like per 100 parts by weight of isoprene rubber, 75 parts by weight of an anthracite charcoal with 71.2% carbon and a grain size of up to 90 microns, has proven to be very good good corrosion resistance has been shown to be testable by means of a spark tester.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752552071 DE2552071A1 (en) | 1975-11-20 | 1975-11-20 | Rubber sheet for cladding metallic tubes or containers - esp. in chemical plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752552071 DE2552071A1 (en) | 1975-11-20 | 1975-11-20 | Rubber sheet for cladding metallic tubes or containers - esp. in chemical plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2552071A1 true DE2552071A1 (en) | 1977-05-26 |
Family
ID=5962203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752552071 Withdrawn DE2552071A1 (en) | 1975-11-20 | 1975-11-20 | Rubber sheet for cladding metallic tubes or containers - esp. in chemical plant |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2552071A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4477611A (en) * | 1983-09-07 | 1984-10-16 | Uniroyal, Inc. | Reinforced rubber composition containing ground coal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2116417A1 (en) * | 1971-04-03 | 1972-10-26 | Bergwerksverband Gmbh | Carbon mouldings - by moulding mixt of carbon and elastomer under pressure at 100-250c |
| DE2124555A1 (en) * | 1971-05-18 | 1973-01-04 | Bergwerksverband Gmbh | Carbon mouldings - by moulding mixt of carbon and elastomer under pressure at 100-250c |
-
1975
- 1975-11-20 DE DE19752552071 patent/DE2552071A1/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2116417A1 (en) * | 1971-04-03 | 1972-10-26 | Bergwerksverband Gmbh | Carbon mouldings - by moulding mixt of carbon and elastomer under pressure at 100-250c |
| DE2124555A1 (en) * | 1971-05-18 | 1973-01-04 | Bergwerksverband Gmbh | Carbon mouldings - by moulding mixt of carbon and elastomer under pressure at 100-250c |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4477611A (en) * | 1983-09-07 | 1984-10-16 | Uniroyal, Inc. | Reinforced rubber composition containing ground coal |
| TR22909A (en) * | 1983-09-07 | 1988-11-01 | Uniroyal Inc | REINFORCED RUBBER COMPUTER |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OB | Request for examination as to novelty | ||
| OC | Search report available | ||
| OD | Request for examination | ||
| 8127 | New person/name/address of the applicant |
Owner name: KERAMCHEMIE GMBH, 5433 SIERSHAHN, DE |
|
| 8139 | Disposal/non-payment of the annual fee |