DE614129C - Process for vulcanizing sponge rubber compounds - Google Patents

Process for vulcanizing sponge rubber compounds

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Publication number
DE614129C
DE614129C DEL82735D DEL0082735D DE614129C DE 614129 C DE614129 C DE 614129C DE L82735 D DEL82735 D DE L82735D DE L0082735 D DEL0082735 D DE L0082735D DE 614129 C DE614129 C DE 614129C
Authority
DE
Germany
Prior art keywords
vulcanizing
sponge rubber
water
rubber compounds
cake
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
Application number
DEL82735D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DEL82735D priority Critical patent/DE614129C/en
Application granted granted Critical
Publication of DE614129C publication Critical patent/DE614129C/en
Expired legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Description

Verfahren zum Vulkanisieren von Schwammgummimischungen Beim Vulkanisieren von Schwammgummimischungen muß eine bestimmte Temperatur innegehalten werden, unter welcher das Vulkanisieren des Gummikuchens beginnt, während gleichzeitig dafür zu sorgen ist, daß der Kuchen mit einem bestimmten Druck belastet ist, welcher das Hochgehen des Kuchens, d. h. die Bildung von Dämpfen des Treibmittels, so lange verhindert, bis der Kuchen einerseits völlig durchwärmt und anderseits eine eine gewisse Festigkeit gewährende Vorvulkanisation erreicht ist.Method of vulcanizing sponge rubber compounds During vulcanizing of sponge rubber compounds a certain temperature must be maintained, below which begins the vulcanizing of the rubber cake, while at the same time for it to is to ensure that the cake is loaded with a certain pressure, which the Rising of the cake, d. H. the formation of vapors of the propellant for so long prevented until the cake is completely warmed on the one hand and a one on the other Pre-vulcanization, which ensures a certain strength, has been reached.

Es wurde diesen Bedingungen bisher in der Weise entsprochen, daß der Gummikuchen in ein Wasserbad gebracht wurde, über dem sich Wasserdampf von dem notwendigen Überdruck befand. Die Anwendung des als Zwischenmittel dienenden Wassers hat jedoch u. a. den Nachteil, daß ein sehr großer Wärmeaufwand erforderlich ist, weil außer dem Gummikuchen auch das Wasser auf die gewünschte Temperatur gebracht werden muß.So far, these conditions have been met in such a way that the Gum cake was placed in a water bath, over which water vapor from the necessary Overpressure. However, the application of the water serving as an intermediate agent has i.a. the disadvantage that a very large amount of heat is required because besides the rubber cake, the water must also be brought to the desired temperature.

Erfindungsgemäß wird der Mangel des bekannten Verfahrens nun dadurch behoben, daß wenigstens das Vorvulkanisieren in Gegenwart von Dampf, z. B. Dampf einer niedriger als Wasser siedenden Flüssigkeit oder Wasserdampf in Mischung mit dem Dampf einer solchen Flüssigkeit oder in Mischung mit einem ,unter Druck stehenden indifferenten Gas, erfolgt.According to the invention, the shortcoming of the known method is now thereby fixed that at least the pre-vulcanization in the presence of steam, e.g. B. Steam a liquid boiling lower than water or water vapor mixed with the vapor of such a liquid or mixed with one under pressure indifferent gas.

Durch das Verfahren gemäß der Erfindung soll man große Wärmemengen sparen und außerdem die Möglichkeit haben, sehr große -Kesselräume auf vollständig gleichmäßige Temperatur zu bringen, was bei Anwendung von Wasser sich als nicht durchführbar erwiesen 'haben soll.The method according to the invention should produce large amounts of heat save and also have the option of very large boiler rooms on completely Bringing an even temperature, which turns out to be not when water is used feasible 'should have proven.

Bei dem Vulkanisieren dicker Schwammgummiplatten ist es ebenso wie zum Vermeiden harter Ecken und Kanten an dem Schwammgummi wünschenswert, mit verhältnismäßig niedriger Vulkanisierungstemperatur zu arbeiten. Auch dies ermöglicht die Erfindung, zumal ein Dampf- oder Dampfgasgemisch sich ohne Schwierigkeit dauernd auf der gewünschten Temperatur halten läßt, wenn der Druck und das Mischungsverhältnis konstant bleiben. Bei Verwendung von Wasser ist demgegenüber ein Schwanken der Wassertemperaturen unvermeidbar, da die Wassertemperatur ausschließlich von der zugeführten Wärme abhängt und man somit nur eine verhältnismäßig unsichere Regelgröße zur Verfügung hat.In the case of vulcanizing thick sheets of sponge rubber, it is the same as to avoid hard corners and edges on the sponge rubber desirable, with relatively to work at a lower vulcanization temperature. This also enables the invention especially since a steam or steam gas mixture can be continuously adjusted to the desired one without difficulty Can hold temperature if the pressure and the mixing ratio remain constant. When using water, on the other hand, there is a fluctuation in the water temperature unavoidable, as the water temperature depends exclusively on the heat supplied and therefore only a relatively uncertain controlled variable is available.

Es ist an sich zum Regeln der Drucktemperaturbeziehung bekannt, Dampf einer niedriger als Wasser siedenden Flüssigkeit in Mischung mit einem unter geeignetem Druck stehenden indifferenten Gas zu verwenden. Von dieser Maßnahme soll jedoch bisher bei dem Herstellen von Schwamnxgummi noch kein Gebrauch gemacht worden sein.It is known per se to regulate the pressure-temperature relationship, steam a liquid with a lower boiling point than water mixed with a suitable liquid To use pressurized inert gas. Of this measure, however, should so far no use has been made in the manufacture of sponge rubber.

Nach dem Verfahren gemäß der Erfindung kann das Aufgehen des Kuchens genügend lange verhindert werden, ohne daß eine Überhitzung der Kuchenoberfläche eintritt. Das Verfahren gemäß der -Erfindung eignet sich auch zum Herstellen von Gummi; schwämmen aus Kautschukmilch, da hier die Behandlungstemperaturen sehr niedrig sein müssen. Als niedrigsiedende, die Dämpfe liefernde Flüssigkeit kommt z. B. Alkohol, als indifferentes Gas z. B. Luft in Betracht.According to the method according to the invention, the rising of the cake can be prevented long enough without a Overheating of the Cake surface occurs. The method according to the invention is also suitable for Manufacture of rubber; sponges from rubber milk, since the treatment temperatures are here must be very low. As a low-boiling liquid that delivers vapors comes z. B. alcohol, as an inert gas z. B. Air into consideration.

Claims (1)

PATENTANSPRUCH: Verfahren zum Vulkanisieren von Schwammgunimimischungen in zwei Abschnitten, deren _erst-er ein Vorvulkani; sieren und deren zweiter das Aufgehen und Ausvulkanisieren der Schwamm,-gummimischung zum Ziele hat, dadurch gekennzeichnet, daß wenigstens das Vorvulkanisieren in Gegenwart von Dampf, z. B. Dampf einer niedriger als Wasser siedenden Flüssigkeit öder Wasserdampf in Mischung mit dem Dampf einer solchen Flüssigkeit oder in Mischung mit einem unter Druck stehenden indifferenten Gas, erfolgt. PATENT CLAIM: Process for vulcanizing sponge guni mixes in two sections, the first of which is a Vorvulkani; sieren and the second the rising and vulcanizing the sponge rubber mixture has the goal, characterized in that at least the pre-vulcanization in the presence of steam, for. B. Vapor of a liquid boiling lower than water or water vapor mixed with the vapor of such a liquid or mixed with a pressurized inert gas.
DEL82735D 1932-12-20 1932-12-20 Process for vulcanizing sponge rubber compounds Expired DE614129C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL82735D DE614129C (en) 1932-12-20 1932-12-20 Process for vulcanizing sponge rubber compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL82735D DE614129C (en) 1932-12-20 1932-12-20 Process for vulcanizing sponge rubber compounds

Publications (1)

Publication Number Publication Date
DE614129C true DE614129C (en) 1935-06-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEL82735D Expired DE614129C (en) 1932-12-20 1932-12-20 Process for vulcanizing sponge rubber compounds

Country Status (1)

Country Link
DE (1) DE614129C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE914318C (en) * 1942-07-10 1954-07-01 Vorwerk & Sohn Process for the production of light materials with closed, gas-filled cells made of rubber or plastics using heat and high-tension gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE914318C (en) * 1942-07-10 1954-07-01 Vorwerk & Sohn Process for the production of light materials with closed, gas-filled cells made of rubber or plastics using heat and high-tension gas

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