DE654787C - Process for rolling out billets etc. from welded steel - Google Patents
Process for rolling out billets etc. from welded steelInfo
- Publication number
- DE654787C DE654787C DEE47776D DEE0047776D DE654787C DE 654787 C DE654787 C DE 654787C DE E47776 D DEE47776 D DE E47776D DE E0047776 D DEE0047776 D DE E0047776D DE 654787 C DE654787 C DE 654787C
- Authority
- DE
- Germany
- Prior art keywords
- welded steel
- rolling
- rolling out
- steel
- billets etc
- 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
Links
- 238000005096 rolling process Methods 0.000 title claims description 13
- 229910000831 Steel Inorganic materials 0.000 title claims description 11
- 239000010959 steel Substances 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 239000002893 slag Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Description
Verfahren zum Auswalzen von Knüppeln usw. aus Schweißstahl Beim Auswalzen von Schweißstahl ergeben sich Schwierigkeiten, die bedingt sind durch die Schlackeneinschlüsse dieses Stoffes. Insbesondere wenn sehr dünne oder unregelmäßige Querschnitte hergestellt werden, ist infolge der Abkühlung bei der Berührung mit den Walzen die Temperatur des Materials stellenweise unter dem Erstarrungspunkt der eingeschlossenen Schweißschlacke, und das Material kommt dadurch teilweise zum Aufplatzen oder schiefert ab. Das Walzgut wird dadurch in seiner Gebrauchsfähigkeit und seinem Wert vermindert.Method of rolling out billets, etc. from welded steel Welding steel creates difficulties due to the slag inclusions of this substance. Especially when making very thin or irregular cross-sections is the temperature due to the cooling on contact with the rollers of the material in places below the solidification point of the enclosed welding slag, and the material partly cracks open or flakes off. The rolling stock is thereby reduced in its usability and its value.
Erfindungsgemäß werden diese Nachteile dadurch umgangen, d. h. es wird der Walzvorgang erleichtert und eine dabei auftretende Verschlechterung des Walzgutes vermied; n, daß der Schweißstahl selbst vor dem Auswalzen mit einem Überzug aus Flußstahl versehen wird. Die kalten Walzen kommen darin nur noch mit dem Flußstahl in Berührung, der schlackenfrei ist und dessen Temperatur tiefer als beim Schweißstahl gehalten werden kann, ohne daß Beschädigungen zu befürchten sind. Es verläuft der Walzvorgang also ähnlich wie beim Flußstahl. Der temperaturempfindliche, aus Schweißstahl bestehende Kern wird durch den Flußstahlmantel vor rascher Abkühlung bewahrt und bleibt einwandfrei walzbar.According to the invention, these disadvantages are circumvented, d. H. it the rolling process is facilitated and the resulting deterioration of the Rolling stock avoided; n that the welding steel itself is coated with a coating before rolling made of mild steel. The cold rollers only come in with the mild steel in contact, which is free of slag and whose temperature is lower than with welded steel can be held without fear of damage. It runs the The rolling process is similar to that of mild steel. The temperature-sensitive, made of welding steel The existing core is protected from rapid cooling by the mild steel jacket and remains flawlessly millable.
Um etwas gänzlich anderes als bei der Erfindung handelt es sich auch bei dein bekannten Verfahren, spröde Metalle oder Metallegierungen dadurch walzbar ztt machen, daß man sie mit einer Schicht aus leicht ztt walzendem Stoff, z. B. aus Flußstahl, umgibt. Hier liegt die zu vermeidende Schwierigkeit in den Eigenschaften der metallischen Stoffe. deren Sprödigkeit oder Bröcklichkeit durch E1nSChluß des Walzgutes in eine allseitig umgebende Hülle unschädlich gemacht wird. Für die Behandlung von Schweißstahl gemäß der Erfindung ist darin kein Vorbild zu linden, denn einerseits ist -es nicht nötig, den zu walzenden Schweißstahl ringsum in eine Hülle einzuschließen, und andererseits ist Schweißstahl auch kein spröder oder bröckliger Stoff. Die Walzschwierigkeiten bei Schweißstahl rühren vielmehr von den Schlakkeneinschlüssen her, deren Vorhandensein sich in der eingangs erwähnten Weise auswirkt. - Daß es schließlich an sich bekannt ist, irgendwelche auszuwalzenden Baustoffe, z. B. Flußstahlbleche, Zinkbleche usw., mit einem Überzug aus einem Fremdstoff (z. B. Aluminium) zu versehen, um besondere Wirkungen zu erzielen, sei der Vollständigkeit halber erwähnt.Something completely different from the invention is also involved With your known process, brittle metals or metal alloys can be rolled make ztt that you can with a layer of slightly ztt rolling fabric, z. B. made of mild steel, surrounds. Here the difficulty to be avoided lies in the properties of metallic substances. their brittleness or friability due to the closure of the Rolled stock is rendered harmless in a shell surrounding it on all sides. For the treatment of welding steel according to the invention is no model to be found in this, because on the one hand it is not necessary to enclose the welding steel to be rolled all around in a shell, and on the other hand, welded steel is not a brittle or crumbly material. The rolling difficulties in the case of welded steel, it is rather the slag inclusions that result from their presence affects itself in the manner mentioned at the beginning. - That it is finally known in and of itself is, any building materials to be rolled out, e.g. B. Mild steel sheets, zinc sheets, etc., to be provided with a coating of a foreign substance (e.g. aluminum) in order to achieve special To achieve effects, should be mentioned for the sake of completeness.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEE47776D DE654787C (en) | 1934-09-30 | 1934-09-30 | Process for rolling out billets etc. from welded steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEE47776D DE654787C (en) | 1934-09-30 | 1934-09-30 | Process for rolling out billets etc. from welded steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE654787C true DE654787C (en) | 1937-12-30 |
Family
ID=7080537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEE47776D Expired DE654787C (en) | 1934-09-30 | 1934-09-30 | Process for rolling out billets etc. from welded steel |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE654787C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE757622C (en) * | 1940-07-13 | 1950-10-03 | Wieland Werke Ag | Process for rolling light metal blocks, in particular made of aluminum alloys |
| DE927742C (en) * | 1949-06-05 | 1955-05-16 | Schmidt Gmbh Karl | Process for pressing metal alloys |
| DE1073989B (en) * | 1953-06-24 | 1960-01-28 |
-
1934
- 1934-09-30 DE DEE47776D patent/DE654787C/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE757622C (en) * | 1940-07-13 | 1950-10-03 | Wieland Werke Ag | Process for rolling light metal blocks, in particular made of aluminum alloys |
| DE927742C (en) * | 1949-06-05 | 1955-05-16 | Schmidt Gmbh Karl | Process for pressing metal alloys |
| DE1073989B (en) * | 1953-06-24 | 1960-01-28 |
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