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DE666547C - Cast iron for composite chilled cast iron rolls - Google Patents

Cast iron for composite chilled cast iron rolls

Info

Publication number
DE666547C
DE666547C DEG85316D DEG0085316D DE666547C DE 666547 C DE666547 C DE 666547C DE G85316 D DEG85316 D DE G85316D DE G0085316 D DEG0085316 D DE G0085316D DE 666547 C DE666547 C DE 666547C
Authority
DE
Germany
Prior art keywords
cast iron
rolls
composite
chilled
composite chilled
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
DEG85316D
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.)
GONTERMANN PEIPERS AKT GES
Original Assignee
GONTERMANN PEIPERS AKT GES
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 DEG81253D external-priority patent/DE657579C/en
Application filed by GONTERMANN PEIPERS AKT GES filed Critical GONTERMANN PEIPERS AKT GES
Priority to DEG85316D priority Critical patent/DE666547C/en
Application granted granted Critical
Publication of DE666547C publication Critical patent/DE666547C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Description

Gußeisen für Verbundhartgußwalzen Die Erfindung betrifft eine weitere Ausbildung der Walzwerkswalzen nach Patent Nr. 657 579; nach diesem Patent wird eine zur Verarbeitung von Metall zu verwendende Verbund'hartgußwalze mit einem mantelförmigen gegossenen Arbeitsteil und mit einem eingegossenen zähen und biegefesten Kern dadurch gekennzeichnet, daß der Hartgußmantel aus einem sorbitisch-martensitisch erstarrenden weißen Gußeisen mit 1,8 bis 3,3 % Kohlenstoff, bis 1,5 % Silicium, 6 bis 15% Mangan sowie geringen Gehalten an Chrom und Nickel, dagegen der Kern aus einem so niedrig geko'hlten grauen Gußeisen besteht, daß die Werkstoffe des Mantels und des Kerns übereinstimmende Ausdehnungskoeffizienten haben.Cast iron for composite chilled cast iron rolls The invention relates to another Formation of the rolling mill rolls according to patent no. 657 579; according to this patent will a composite chilled cast iron roller with a jacket-shaped one to be used for processing metal cast working part and with a cast tough and rigid core thereby characterized in that the chilled cast iron jacket consists of a sorbitic-martensitic solidifying white cast iron with 1.8 to 3.3% carbon, up to 1.5% silicon, 6 to 15% manganese and low levels of chromium and nickel, while the core of one is so low Cooled gray cast iron consists of the materials of the jacket and the core have matching expansion coefficients.

Vorliegende Erfindung richtet sich auf eine Heraufsetzung der oberen Grenze des Kohlenstoffgehalts.The present invention is directed to upgrading the above Limit of carbon content.

So wurde z. B. festgestellt, daß bei möglichst kaltem Vergießen des Kernmaterials, das z. B. bei einer Walze von 700 mm ur erst mindestens 5 Minuten nach dem Gießen des Mantelmaterials nachgeschüttet wird, der Kohlenstoffgehalt des Mantelwerkstoffes bis zu 4,2 % gesteigert werden kann, ohne Gefahr zu laufen, den Mantel aufzuspülen und damit die Walze unbrauchbar zu machen.So was z. B. found that when pouring the core material as cold as possible, the z. B. with a roller of 700 mm ur is refilled at least 5 minutes after pouring the jacket material, the carbon content of the jacket material can be increased up to 4.2% without running the risk of flushing the jacket and thus making the roller unusable .

Claims (1)

PATRNTAXSPRUCH Verbundhartgußwalze nach Patent Nr. 657 579, dadurch gekennzeichnet, daß der Kohlenstoffgehalt des Mantelwerkstoffes über 3,3 bis zu q.,2% beträgt.PATRN TAX CLAIM Compound chilled cast iron roller according to patent no. 657 579, thereby characterized in that the carbon content of the jacket material over 3.3 up to q., 2%.
DEG85316D 1931-11-26 1933-04-13 Cast iron for composite chilled cast iron rolls Expired DE666547C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG85316D DE666547C (en) 1931-11-26 1933-04-13 Cast iron for composite chilled cast iron rolls

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG81253D DE657579C (en) 1931-11-26 1931-11-26 Cast iron for composite chilled cast iron rolls
DEG85316D DE666547C (en) 1931-11-26 1933-04-13 Cast iron for composite chilled cast iron rolls

Publications (1)

Publication Number Publication Date
DE666547C true DE666547C (en) 1938-10-22

Family

ID=29585214

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG85316D Expired DE666547C (en) 1931-11-26 1933-04-13 Cast iron for composite chilled cast iron rolls

Country Status (1)

Country Link
DE (1) DE666547C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE955240C (en) * 1953-05-23 1957-01-03 Deutsche Edelstahlwerke Ag Cold roll and process for its manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE955240C (en) * 1953-05-23 1957-01-03 Deutsche Edelstahlwerke Ag Cold roll and process for its manufacture

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