DE29702033U1 - Molded body - Google Patents
Molded bodyInfo
- Publication number
- DE29702033U1 DE29702033U1 DE29702033U DE29702033U DE29702033U1 DE 29702033 U1 DE29702033 U1 DE 29702033U1 DE 29702033 U DE29702033 U DE 29702033U DE 29702033 U DE29702033 U DE 29702033U DE 29702033 U1 DE29702033 U1 DE 29702033U1
- Authority
- DE
- Germany
- Prior art keywords
- molded body
- shaped body
- body according
- polyurethane
- composition
- 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 - Lifetime
Links
- 229920001971 elastomer Polymers 0.000 claims description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 7
- 239000011707 mineral Substances 0.000 claims description 7
- 239000005060 rubber Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000806 elastomer Substances 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims 1
- 239000013536 elastomeric material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B21/00—Track superstructure adapted for tramways in paved streets
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B13/00—Arrangements preventing shifting of the track
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/11—Embedded tracks, using prefab elements or injecting or pouring a curable material
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Glass Compositions (AREA)
- Organic Insulating Materials (AREA)
- Inorganic Insulating Materials (AREA)
Description
9*6 SD* 12 9 ODEG9*6 SD* 12 9 ODEG
Die Erfindung bezieht sich auf Formkörper, insbesondere als Schienenkammerfüllelement.The invention relates to shaped bodies, in particular as rail chamber filling elements.
Es gibt Schienengleise ohne einen Bahnkörper, insbesondere als Straßenbahnschienen, die in einer existierenden Straße verlegt sind. Die Straßenbahnschienen weisen seitliche Hohlräume auf, die als Kammern bezeichnet werden und mit sogenannten Kammerfüll-"Steinen" befüllt sind. Neuerdings gibt es solche Kammerfüllelemente auch aus recyceltem Gummi, vornehmlich aus Altreifen (DE 40 04 208), welche gute schwingungsdämpfende und -dämmende Eigenschaften ausweisen.There are rail tracks without a track bed, especially as tram tracks, which are laid in an existing street. The tram tracks have hollow spaces on the sides, which are called chambers and are filled with so-called chamber filling "stones". Recently, such chamber filling elements have also been made from recycled rubber, primarily from old tires (DE 40 04 208), which have good vibration-damping and vibration-insulating properties.
Der Erfindung liegt die Aufgabe zugrunde, Formkörper bereitzustellen, die als Kammerfüllelemente mit ähnlich guten Eigenschaften wie solche aus komplett recycelten Gummi aufweisen, jedoch preiswerter herstellbar sind.The invention is based on the object of providing molded bodies which, as chamber filling elements, have properties similar to those made of completely recycled rubber, but can be produced more inexpensively.
Die gestellte Aufgabe wird aufgrund der Merkmale des Hauptanspruchs gelöst und durch die weiteren Merkmale der Unteransprüche ausgestaltet und weiterentwickelt.The stated problem is solved on the basis of the features of the main claim and is developed and refined by the further features of the subclaims.
Im einzelnen wird körniges Mineral und Gummi oder Kunststoffgranulat verwendet, das mit Polyurethan gebunden wird. Das Mineral ist vorwiegend grob, während die Lücken mit elastomerem Material so weit gefüllt sind, daß der Formkörper sich insgesamt wasserdicht verhält. Das elastomere Material {Gummi und Polyurethan) bildet gewissermaßen Häute zwischen dem körnigen Mineral, wodurch der Formkörper genügende Elastizität erhält, um sich den Schienenkammern anzupassen, auch wenn die Schienen entsprechend den vorgesehenen Kurven gebogen sind.Specifically, granular mineral and rubber or plastic granulate are used, which are bound with polyurethane. The mineral is predominantly coarse, while the gaps are filled with elastomeric material to such an extent that the molded body is watertight overall. The elastomeric material (rubber and polyurethane) forms a kind of skin between the granular mineral, which gives the molded body sufficient elasticity to adapt to the rail chambers, even if the rails are bent according to the intended curves.
Nachfolgend wird ein Ausführungsbeispiel beschrieben. Für die Herstellung des Formkörpers wurde folgende Zusammensetzung gewählt:An example of implementation is described below. The following composition was chosen to produce the molded body:
• ··
• <• <
• ··
Material Körnung Gew.%Material Grain Weight%
(mm)(mm)
MineralsplittMineral grit
aus Kalkstein, 1-8 50-80made of limestone, 1-8 50-80
Marmor, Quarz odgl.Marble, quartz or similar
Elastomergranulat
(Gummi,
Kabelabfälle) 0,1-10 15-40Elastomer granulate
(Rubber,
Cable waste) 0.1-10 15-40
Polyurethan alsPolyurethane as
Binder - 5-10Binders - 5-10
Die Zusammensetzung wird innig gemischt und in geeigneten Formen unter hohem Druck und Hitze bei etwa 60 bis 7O0C während 5 bis 10 Minuten verpreßt, um daraus die gewünschten Formkörper zu erhalten. Wenn relativ wenig feines Material vorhanden ist, ist der Formkörper porig und damit wasserdurchlässig. Während es auch Anwendungen für wasserdurchlässige Formkörper gibt, wird bei der Anwendung als Kammerfüllelement relative Wasserundurchlässigkeit angestrebt. Deshalb sollte der Anteil "Elastomergranulat" einen hohen Prozentsatz feines Material enthalten, beispielsweise 10 bis 15 Gew.% Gummimehl, bezogen auf die Gesamtzusammensetzung. Wenn eine gewisse Gashaltigkeit des Formkörpers angestrebt wird, ohne die Wasserdichtigkeit zu gefährden, kann man dem Polyurethan ein geringes Treibmittel zusetzen, so daß sich geschlossene Bläschen in dem Formkörper zwischen dem körnigen Mineral bilden.The composition is thoroughly mixed and pressed in suitable molds under high pressure and heat at about 60 to 70 0 C for 5 to 10 minutes to obtain the desired molded body. If there is relatively little fine material, the molded body is porous and thus permeable to water. While there are also applications for water-permeable molded bodies, relative water impermeability is the aim when using it as a chamber filling element. The "elastomer granulate" portion should therefore contain a high percentage of fine material, for example 10 to 15% by weight of rubber powder, based on the total composition. If a certain gas content of the molded body is desired without endangering its watertightness, a small amount of blowing agent can be added to the polyurethane so that closed bubbles form in the molded body between the granular mineral.
Es ist auch möglich, den Formkörper zweischichtig aufzubauen, beispielsweise in der Anlagezone mit der Schienenkammer aus Material einer Zusammensetzung mit höherem Elastomergehalt.It is also possible to construct the molded body in two layers, for example in the contact zone with the rail chamber made of material with a composition with a higher elastomer content.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29702033U DE29702033U1 (en) | 1997-02-06 | 1997-02-06 | Molded body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29702033U DE29702033U1 (en) | 1997-02-06 | 1997-02-06 | Molded body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29702033U1 true DE29702033U1 (en) | 1997-04-03 |
Family
ID=8035560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29702033U Expired - Lifetime DE29702033U1 (en) | 1997-02-06 | 1997-02-06 | Molded body |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29702033U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2045063A1 (en) * | 2007-10-02 | 2009-04-08 | Casei Eco System S.R.L. | Process for producing a weight-increased manufactured article made of rubber granules |
| DE102017127585A1 (en) * | 2017-11-22 | 2019-05-23 | Het Elastomertechnik Gmbh | Fire retardant rail chamber filling element and elastomer molding |
-
1997
- 1997-02-06 DE DE29702033U patent/DE29702033U1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2045063A1 (en) * | 2007-10-02 | 2009-04-08 | Casei Eco System S.R.L. | Process for producing a weight-increased manufactured article made of rubber granules |
| DE102017127585A1 (en) * | 2017-11-22 | 2019-05-23 | Het Elastomertechnik Gmbh | Fire retardant rail chamber filling element and elastomer molding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19970515 |
|
| R156 | Lapse of ip right after 3 years |
Effective date: 20001201 |