DE1127545B - Process for casting iron and steel under pressure - Google Patents

Process for casting iron and steel under pressure

Info

Publication number
DE1127545B
DE1127545B DEW27693A DEW0027693A DE1127545B DE 1127545 B DE1127545 B DE 1127545B DE W27693 A DEW27693 A DE W27693A DE W0027693 A DEW0027693 A DE W0027693A DE 1127545 B DE1127545 B DE 1127545B
Authority
DE
Germany
Prior art keywords
casting
iron
under pressure
compressed air
steel under
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.)
Pending
Application number
DEW27693A
Other languages
German (de)
Inventor
Otto Weber
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 claimed from DEF14922A external-priority patent/DE1080303B/en
Application filed by Individual filed Critical Individual
Priority to DEW27693A priority Critical patent/DE1127545B/en
Publication of DE1127545B publication Critical patent/DE1127545B/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/10—Connection to driving members
    • F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
    • F16J1/22—Connection to driving members with connecting-rods, i.e. pivotal connections with universal joint, e.g. ball-joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02—Ethene

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Casting Devices For Molds (AREA)

Description

DEUTSCHESGERMAN

PATENTAMTPATENT OFFICE

INTERNAT. EL. B 22 dINTERNAT. Tbsp. B 22 d

W 27693 VIa/31cW 27693 VIa / 31c

ANMELDETAG: 30. JULI 1959REGISTRATION DATE: JULY 30, 1959

BEKANNTMACHUNG
DER ANMELDUNG
UNDAOSGABEDER
AUSLEGESCHRIFT: 12. APRIL 1962 NOTICE
THE REGISTRATION
UNDAUSGABEDER
EDITORIAL: APRIL 12, 1962

Gegenstand der Erfindung ist ein Verfahren, Gußstücke aus Eisen und Stahl unter Verwendung von Druckluft zu gießen. Durch das Verfahren gelingt es, Gußstücke aus Gußeisen zu erzeugen, die bei sehr niedrigem Sättigungsgrad des Eisens ein grau erstarrtes Gefüge zeigen, demzufolge leicht bearbeitbar sind und sehr hohe Festigkeiten aufweisen im Gegensatz zu dem bisher bekannten Gießverfahren, bei dem Eisen mit derart niedrigem Sättigungsgrad ein weiß erstarrendes Gefüge zeigt und nicht bearbeitbar ist.The invention relates to a method, castings made of iron and steel using Pour compressed air. The process makes it possible to produce castings from cast iron that are very close to show a gray solidified structure with a low degree of saturation of the iron, which makes them easy to work with and have very high strengths in contrast to the previously known casting process in which Iron with such a low degree of saturation shows a white solidifying structure and cannot be processed.

Die Möglichkeit einer Beeinflussung der Gefügeausbildung des späteren Gußstückes durch eine Druckbehandlung des flüssigen Gießmetalls vor dem Vergießen ist bisher nicht bekanntgeworden.The possibility of influencing the structure of the later casting by a Pressure treatment of the liquid casting metal prior to casting has not yet become known.

Es ist zwar bekannt, flüssiges Eisen unter Anwendung von Druckluft, Druckgas oder Vakuum zu vergießen. Diese Verfahren haben aber bei ihrer Anwendungsart eine Beeinflussung des Gefüges im Sinne einer Güteverbesserung nicht herbeigeführt, da das flüssige Eisen erst in der bereits gefüllten Form der Druckluft oder dem Vakuum ausgesetzt und hier nicht mehr die Gefügeausbildung beeinflußt wird. Andererseits ist vorgeschlagen, flüssiges Eisen unter Druck in Kokillen bzw. in Sand zu vergießen. Dieses Eisen ist so naheutektisch, daß es in jedem Fall nach dem stabilen System Eisen—Graphit erstarrt.It is known to cast liquid iron using compressed air, compressed gas or vacuum. However, with their type of application, these methods have an influence on the structure in the sense of a Improvement in quality not brought about, since the liquid iron is only in the already filled form of the compressed air or exposed to the vacuum and the structure formation is no longer influenced here. on the other hand it is proposed to cast liquid iron under pressure in molds or in sand. This iron is so near-eutectic that it solidifies in any case according to the stable iron-graphite system.

Im vorliegenden Fall wird ein Gußeisen verwendet, das beim Gießen in Kokille oder Sand ohne Druck nach bekannten Verfahren nach dem metastabilen System Eisen—Karbid erstarren würde, beim Gießen in Kokille oder Sand unter Druck nach dem stabilen System erstarrt.In the present case, a cast iron is used, which when pouring in mold or sand without pressure would solidify according to known methods according to the metastable iron-carbide system during casting solidified in mold or sand under pressure according to the stable system.

Gemäß dem neuen Verfahren wird das flüssige Eisen in einem von der Gießform getrennten Gießzylinder einer Vorverdichtung mittels Druckluft unterworfen. Diese Vorverdichtung wird dadurch erreicht, daß eine von einem Tragrost gestützte feuerfeste Staufolie das flüssige Eisen im oberen Zylinder anstaut und erst bei einem Druckluftstoß zerreißt und so daß flüssige Eisen unter Druck in die darunterliegende Form eindringen läßt.According to the new method, the liquid iron is in a casting cylinder that is separate from the casting mold subjected to pre-compression by means of compressed air. This pre-compression is achieved by that a fireproof damming foil supported by a support grate accumulates the liquid iron in the upper cylinder and only ruptures with a blast of compressed air and so that liquid iron under pressure into the underlying Form can penetrate.

Die Abbildung zeigt im Schema die hierzu benötigte Apparatur. Durch den Einlauf 1 gelangt das flüssige Eisen in den Gießzylinder 2, welcher mittels Deckel 3 und 4 dicht verschlossen wird. Durch den Deckel 3 Verfahren zum Gießen von Eisen und Stahl unter DruckThe diagram shows the equipment required for this. The liquid passes through the inlet 1 Iron into the casting cylinder 2, which is tightly closed by means of lids 3 and 4. Through the lid 3 Method of casting iron and steel under pressure

Anmelder:Applicant:

Otto Weber,
Düsseldorf-Eller, Gertrudisplatz 16Otto Weber,
Düsseldorf-Eller, Gertrudisplatz 16

Otto Weber, Düsseldorf-Eller, ist als Erfinder genannt wordenOtto Weber, Düsseldorf-Eller, has been named as the inventor

führt ein Anschlußstutzen für Preßluft 5. Der Gießzylinder ist durch eine feuerfeste Staufolie 6 von der darunterliegenden Gießform getrennt. Um einer vorzeitigen Zerstörung der Staufolie durch das Eisengewicht entgegenzuwirken, liegt diese auf einem Tragrost 7. Durch Einleiten von Druckluft in den oberen Zylinderraum wird das flüssige Eisen vorverdichtet, und durch den nun absichtlich herbeigeführten, zusätzlichen Druckstoß zerreißt die Staufolie, und das flüssige Eisen dringt unter Druck sehr schnell durch den Tragrost in den Formraum 8 ein.leads a connection piece for compressed air 5. The casting cylinder is through a fireproof damming film 6 from the underlying mold separated. To avoid premature destruction of the dunnage sheet by the weight of the iron to counteract this, it lies on a support grid 7. By introducing compressed air into the the upper cylinder space, the liquid iron is pre-compressed, and through the now intentionally created, additional pressure surge tears the damming sheet, and the liquid iron penetrates very much under pressure quickly through the support grid into the mold space 8.

Claims (2)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Verfahren zum Gießen von Eisen mit niedrigem Sättigungsgrad und Stahl unter Druckeinwirkung, dadurch gekennzeichnet, daß das Gießmetall in einem durch eine feuerfeste Staufolie von der Gießform getrennten Gießzylinder einer Vorverdichtung mittels Druckluft unterworfen und im Augenblick des Gießens ein zusätzlicher Druck aufgebracht wird.1. A method for casting iron with a low degree of saturation and steel under the action of pressure, characterized in that the casting metal is subjected to precompression by means of compressed air in a casting cylinder separated from the casting mold by a refractory damming film and an additional pressure is applied at the moment of casting. 2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß die den Gießzylinder von der Form trennende Staufolie erst nach erfolgter Vorverdichtung des Gießmetalls durch einen zusätzlichen Druckluftstoß zerstört wird.2. The method according to claim 1, characterized in that the casting cylinder of the Form-separating damming film only after the casting metal has been pre-compressed by an additional one Compressed air surge is destroyed. In Betracht gezogene Druckschriften: Österreichische Patentschrift Nr. 194548.Publications considered: Austrian patent specification No. 194548. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEW27693A 1954-02-25 1959-07-30 Process for casting iron and steel under pressure Pending DE1127545B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW27693A DE1127545B (en) 1954-02-25 1959-07-30 Process for casting iron and steel under pressure

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DEF14922A DE1080303B (en) 1954-02-25 1954-02-25 Process for the production of solid polyethylenes
DEG14781A DE1091711B (en) 1954-02-25 1954-02-25 Apparatus and method for casting iron and steel under pressure
DEB38412A DE1000801B (en) 1954-02-25 1954-07-02 Process for the preparation of terephthalic acid
DEG15460A DE1133510B (en) 1954-02-25 1954-07-02 Method and device for casting iron and steel under pressure
DEG0014922 1954-10-08
DEF15877A DE1154631B (en) 1954-02-25 1954-10-08 Process for the polymerization of ethylene
DE825958X 1955-12-30
DEW27693A DE1127545B (en) 1954-02-25 1959-07-30 Process for casting iron and steel under pressure

Publications (1)

Publication Number Publication Date
DE1127545B true DE1127545B (en) 1962-04-12

Family

ID=27570663

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW27693A Pending DE1127545B (en) 1954-02-25 1959-07-30 Process for casting iron and steel under pressure

Country Status (1)

Country Link
DE (1) DE1127545B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT194548B (en) * 1954-07-02 1958-01-10 Goetzewerke Device for casting iron and non-ferrous metals under pressure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT194548B (en) * 1954-07-02 1958-01-10 Goetzewerke Device for casting iron and non-ferrous metals under pressure

Similar Documents

Publication Publication Date Title
DE1133510B (en) Method and device for casting iron and steel under pressure
DE1936153B2 (en) PROCESS AND CASTING FORM FOR PRODUCING CASTINGS WITH BALL GRAPHITE
DE966737C (en) Device for the production of explosive bodies, in particular projectile charges
DE1127545B (en) Process for casting iron and steel under pressure
DE688927C (en) Process for preparing cast blocks from unkilled steel that are subsequently subjected to deformation
DD294200A5 (en) METHOD AND DEVICE FOR LIQUID METAL SUPPLY OF A CASTING FORM
DE1135619B (en) Method and device for producing castings in sand molds using pressurized gas
DE720556C (en) Pressure stamp for casting liquid metal under explosion pressure for dental purposes
DE853942C (en) Process for the production of void-free and segregation-free steel blocks
DE664540C (en) Method and device for the production of dense castings using a gaseous pressure medium
DE2127769A1 (en) Method and device for the manufacture of light metal pistons
WO1982000786A1 (en) Metal molding process using sand hollow forms
DE712231C (en) Process for producing thick-walled hollow bodies
DE2119265C2 (en) Casting mold for large crank strokes and casting processes
DE635189C (en) Process for the production of gray pig iron with a low silicon content not exceeding 0.6%
DE2624610A1 (en) Wheel disc pressure die castings - made of aluminium wrought alloy with roller burnishing of rim outsides
DE634120C (en) Mold
DE510497C (en) Process for the production of segregation-free, cast hollow bodies
AT224825B (en) Process for making high yield steel blocks
DE355882C (en) Process for casting shaped steel blocks in horizontal molds
AT61676B (en) Process for improving the properties of fluoro-iron and the like blocks.
DE557370C (en) Method of joining refractory substances, e.g. B. tungsten carbide, with easily melting, z. B. steel or bronze
DE140284C (en)
EP0254680A1 (en) Low pressure die casting method
DE328916C (en) Process for the production of cast blocks with different hard and rustproof layers