DE613585C - Process for vulcanizing sponge rubber - Google Patents

Process for vulcanizing sponge rubber

Info

Publication number
DE613585C
DE613585C DEL82960D DEL0082960D DE613585C DE 613585 C DE613585 C DE 613585C DE L82960 D DEL82960 D DE L82960D DE L0082960 D DEL0082960 D DE L0082960D DE 613585 C DE613585 C DE 613585C
Authority
DE
Germany
Prior art keywords
vulcanizing
sponge rubber
steam
boiler
pressure
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
DEL82960D
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
Priority to BE400958D priority Critical patent/BE400958A/xx
Application filed by Individual filed Critical Individual
Priority to DEL82960D priority patent/DE613585C/en
Application granted granted Critical
Publication of DE613585C publication Critical patent/DE613585C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping 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)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Description

Verfahren zum Ausvulkanisieren von Schwammgummi Die Erfindung betrifft ein Verfahren zum Ausvulkanisieren von Schwammgummi. Während bei der Vorvulkanisation bei verhältnismäßig niedriger Temperatur ein höherer Druck aufrechterhalten werden muß, damit das Blähmittel nicht zur Wirkung kommt, muß bei dem Ausvulkanisieren die Wirkung des Blähmittels begünstigt und unterstützt werden. Erfindungsgemäß erfolgt zu diesem Zwecke die Ausvulkanisation in Gegenwart von Wasserdampf, der durch im Kessel befindliche elektrische Heizkörper ohne Druckerhöhung überhitzt oder der mit dem in den Kessel eingeleiteten oder dort erzeugten Dampf einer höher als Wasser siedenden Flüssigkeit vermischt wird. Auf diese Weise gelingt es, dem Dampf eine höhere Temperatur zu geben, als sie gesättigtem Wasserdampf entspricht, ohne daß eine Druckerhöhung eintritt. Durch die Erhöhung der Temperatur wird die Blähwirkung des Blähmittels ganz beträchtlich vergrößert und insbesondere eine größere Ausdehnung der Poren an den äußeren Teilen oder Kanten des vorvulkanisierten Schwammgummis herbeigeführt, die gewöhnlich klein ausfallen.Method of Vulcanizing Sponge Rubber The invention relates to a method of vulcanizing sponge rubber. During the pre-vulcanization a higher pressure can be maintained at a relatively low temperature must, so that the blowing agent does not come into effect, must during the vulcanization the effect of the blowing agent is favored and supported. Takes place according to the invention for this purpose the vulcanization in the presence of water vapor, which by im Electric radiators located in the boiler overheated or the with the steam introduced into the boiler or generated there, a higher level than water boiling liquid is mixed. In this way it is possible to give the steam a to give higher temperature than it corresponds to saturated water vapor without a pressure increase occurs. Increasing the temperature increases the bloating effect of the blowing agent is enlarged quite considerably, and in particular a greater extent the pores on the outer parts or edges of the pre-vulcanized sponge rubber which are usually small.

Es ist an sich für andere Zwecke bereits bekannt, Dampf auf elektrischem Wege oder aber durch Zuführen eines Gases oder Gasdampfgemisches von höherer Temperatur zu überhitzen. Ferner ist bereits vorgeschlagen worden, elektrische Heizkörper im Vulkanisierkessel anzuordnen und darin eine Flüssigkeit zu verdampfen. Dabei erfolgte jedoch keine Überhitzung des Dampfes ohne Druckerhöhung.It is already known per se for other purposes, steam on electric Ways or by supplying a gas or gas vapor mixture of higher temperature to overheat. It has also been proposed to use electric radiators in the To arrange vulcanizing kettle and evaporate a liquid in it. It took place however, no overheating of the steam without increasing the pressure.

Gegebenenfalls kann das Überhitzen des Dampfes mit Hilfe der elektrischen Heizkörper auch unter gleichzeitiger Senkung des Druckes erfolgen.If necessary, the steam can be superheated with the help of the electric Radiators can also be carried out with a simultaneous reduction in pressure.

Als höher als Wasser siedende Flüssigkeiten, die gemäß der Erfindung Verwendung finden können, kommen in erster Linie solche in Frage, welche den Gummi nicht angreifen, wie z. B. höher als Wasser siedende Alkohole. Als Ausgangsrohstoff der zu vulkanisierenden Schwammgummimischung kann auch Kautschukmilch Verwendung finden.As higher than water boiling liquids according to the invention Can be used, those primarily come into question, which the rubber do not attack, such as B. higher than water boiling alcohols. As a raw material rubber milk can also be used for the sponge rubber compound to be vulcanized Find.

Claims (1)

PATENTANSPRUCH: Verfahren zum Ausvulkanisieren von Schwammgummi, dadurch gekennzeichnet, daß nach vollendeter Vorvulkanisation der im Vulkanisierkessel befindliche Dampf durch elektrische Heizkörper ohne Druckerhöhung überhitzt oder mit dem in den Kessel eingeleiteten oder dort erzeugten Dampf einer höher als Wasser siedenden Flüssigkeit vermischt wird. Claim: A method for vulcanizing sponge rubber, characterized in that after the pre-vulcanization is complete, the steam in the vulcanizing boiler is overheated by electric heating elements without increasing the pressure or is mixed with the steam of a liquid that boils higher than water and which is introduced into the boiler or generated there.
DEL82960D 1933-01-19 1933-01-19 Process for vulcanizing sponge rubber Expired DE613585C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE400958D BE400958A (en) 1933-01-19
DEL82960D DE613585C (en) 1933-01-19 1933-01-19 Process for vulcanizing sponge rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL82960D DE613585C (en) 1933-01-19 1933-01-19 Process for vulcanizing sponge rubber

Publications (1)

Publication Number Publication Date
DE613585C true DE613585C (en) 1935-05-21

Family

ID=7285366

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL82960D Expired DE613585C (en) 1933-01-19 1933-01-19 Process for vulcanizing sponge rubber

Country Status (2)

Country Link
BE (1) BE400958A (en)
DE (1) DE613585C (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

Also Published As

Publication number Publication date
BE400958A (en)

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