DE97787C - - Google Patents
Info
- Publication number
- DE97787C DE97787C DENDAT97787D DE97787DA DE97787C DE 97787 C DE97787 C DE 97787C DE NDAT97787 D DENDAT97787 D DE NDAT97787D DE 97787D A DE97787D A DE 97787DA DE 97787 C DE97787 C DE 97787C
- Authority
- DE
- Germany
- Prior art keywords
- molds
- container
- objects
- air
- hermetically sealed
- 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.)
- Active
Links
- 238000004073 vulcanization Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- 239000011800 void material Substances 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 230000000254 damaging Effects 0.000 description 1
- 230000001627 detrimental Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D22/00—Producing hollow articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Bei der Vulkanisirung hohler Gummigegenstände in der Form hat man bisher chemische Reagentien, wie beispielsweise kohlensaures Ammoniak, angewendet, um den nöthigen Ueberdruck innerhalb der Waare zu erzeugen, mittelst dessen letztere ausgedehnt und zur gehörigen Ausfüllung der Form veranlafst wurde. ■Diese Chemikalien sind jedoch nachtheilig, da sie eine zerstörende Wirkung auf den Gummi ausüben.In the vulcanization of hollow rubber objects in the mold one has hitherto used chemical substances Reagents, such as, for example, carbonate of ammonia, are used to remove the necessary To produce overpressure within the commodity, by means of the latter expanded and belonging to it Completion of the form was initiated. ■ However, these chemicals are detrimental because they have a damaging effect on the rubber.
Nach vorliegendem Verfahren ist die Verwendung chemischer Reagentien bei der oben erwähnten Vulkanisirung dadurch vermieden, dafs man die Vulkanisirung in einem luftleeren bezw. theilweise luftleeren Raum vornimmt, so dafs die in dem zu behandelnden Gegenstand befindliche Luft durch die äufsere Luftleere zur Ausdehnung veranlafst wird und das Anpressen der Wandung des Gegenstandes gegen die inneren Formwände verursacht.In the present procedure, the use of chemical reagents is in the above The vulcanization mentioned above is avoided by the vulcanization in a vacuum respectively partially evacuated space, so that those in the object to be treated The air is caused to expand by the outer air void and the pressing caused the wall of the object against the inner mold walls.
Auf den beiliegenden Zeichnungen ist ein Apparat veranschaulicht, welcher zur Ausführung, des Verfahrens verwendet werden kann, und zwar in Fig. 1 in Seitenansicht, theilweise im Schnitt. Die Fig. 2 zeigt eine abgeänderte Ausführungsform eines Formkastens.On the accompanying drawings an apparatus is illustrated which is used to carry out, of the method can be used, in part in Fig. 1 in side view on average. Fig. 2 shows a modified embodiment of a molding box.
Die Formen A werden in einem luftdicht abgeschlossenen Behälter B aufgestellt, welcher durch Leitung C mit einer Luftpumpe verbunden sein kann. Der Behälter B ist vortheilhaft mit Rollen b versehen, mittelst deren sich derselbe längs der in einem Dampfkessel D angeordneten Schienen bewegen kann. Die Formkasten A, welche zweitheilig sein können, dürfen nicht ganz dicht abschliefsen, damit der Behälter B mit dem Innern der Formen in Verbindung steht.The molds A are placed in an airtight container B , which can be connected to an air pump via line C. The container B is advantageously provided with rollers b , by means of which it can move along the rails arranged in a steam boiler D. The molding box A, which can be two-part, must not close completely tightly so that the container B is in contact with the interior of the molds.
Bei der Vulkanisirung wird eine Luftleere bezw. Luftverdünnung in dem Behälter B und den Formen A erzeugt, so dafs die in den zu behandelnden Gegenständen vorhandene Luft sich ausdehnt, wodurch die Gegenstände gegen die Formwände angeprefst werden.During the vulcanization an air void is resp. Air dilution is created in the container B and the molds A , so that the air present in the objects to be treated expands, whereby the objects are pressed against the mold walls.
Der Formkasten der Fig. 2, dessen Hälften ff mittels Abdichtungsringes e luftdicht abgeschlossen sind, erhält einen besonderen Kanal h zur Herstellung der Verbindung zwischen den · beiden Formen gg. Dieser Kanal kann mit der Luftleitung verbunden sein und ist durch ein Ventil i verschliefsbar. Bei dieser Anordnung der Formkasten würde der Behälter B entbehrlich, da man die Formen unmittelbar in dem Kessel D aufstellen kann.The molding box of FIG. 2, the halves ff of which are hermetically sealed by means of sealing ring e , has a special channel h for establishing the connection between the two molds . This channel can be connected to the air line and can be closed by a valve i . With this arrangement of the molding box, the container B would be superfluous, since the molds can be set up directly in the kettle D.
Die Vulkanisirung findet in der üblichen Weise statt und bedarf hier keiner weiteren Erwähnung.Vulcanization takes place in the usual way and does not need any further here Mention.
Claims (1)
Ausführungsform des unter i. gekennzeichneten Verfahrens, wonach die Formen (A) entweder in einem im Vulkanisirkessel befindlichen gemeinschaftlichen Behälter (B) untergebracht werden, welcher luftdicht abgeschlossen und mit einer Vacuumleitung C verbunden ist, oder aber sämmtliche Formen luftdicht abgeschlossen und einzeln mit der Vacuumleitung verbunden sind, in welch letzterem Falle der Behälter (B) in Fortfall kommen kann.the latter against the mold walls is caused by the expansion of the amount of air present in the same.
Embodiment of the under i. characterized method, after which the molds (A) are either housed in a common container (B) located in the vulcanization vessel, which is hermetically sealed and connected to a vacuum line C, or all of the molds are hermetically sealed and individually connected to the vacuum line, in which in the latter case, the container (B) can be omitted.
Publications (1)
Publication Number | Publication Date |
---|---|
DE97787C true DE97787C (en) |
Family
ID=368806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT97787D Active DE97787C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE97787C (en) |
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0
- DE DENDAT97787D patent/DE97787C/de active Active
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