DE2114301A1 - Surface cleaning of continuously cast strip - Google Patents
Surface cleaning of continuously cast stripInfo
- Publication number
- DE2114301A1 DE2114301A1 DE19712114301 DE2114301A DE2114301A1 DE 2114301 A1 DE2114301 A1 DE 2114301A1 DE 19712114301 DE19712114301 DE 19712114301 DE 2114301 A DE2114301 A DE 2114301A DE 2114301 A1 DE2114301 A1 DE 2114301A1
- Authority
- DE
- Germany
- Prior art keywords
- removal
- smoothing
- cast
- cast skin
- workpiece
- 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.)
- Ceased
Links
- 238000004140 cleaning Methods 0.000 title 1
- 238000005266 casting Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000003801 milling Methods 0.000 claims abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 4
- 238000000227 grinding Methods 0.000 claims abstract description 3
- 238000009499 grossing Methods 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 210000000056 organ Anatomy 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- 238000002679 ablation Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
-
- 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
- B21B2003/001—Aluminium or its alloys
Abstract
Description
"Verfahren und Vorrichtung zum kontinuierlichen Bearbeiten der Obereflächen gegossener Metallbänder" Priorität: 24. März 1970; Schweiz; Anmelde-Nr.: 4371/70 Die Erfindung bereicht sich auf ein Verfahren zum Bearbeiten der Oberflächen kontinuierlich gegossener Bänder insbesondere aus Aluminium und Aluminiumlegierungen und eine Vorrichtung zur Durchführung dieses Verfahrens."Method and device for the continuous processing of the surface cast metal strips "Priority: March 24, 1970; Switzerland; registration no .: 4371/70 The invention relates to a method for machining the surfaces continuously cast strips, in particular made of aluminum and aluminum alloys, and a device to carry out this procedure.
Diese Bänder, die mit den heutigen Eiirichtungen in Breiten von bis zu 2 m und Dicken von 5 bis 50 mm vergossen werden, weisen an ihren Oberflächen die bekannte Gusshaut auf, die Oxide, Seigerungen und Poren enthält. Bei der Weiterverarbeitung z.B. zu dünnen Blechen, Bändern oder Folien, bei denen an die Oberflächenbeschaffenheit erhöhte Anforderungen gestellt werden wirkt sich diese Gusshaut störend aus und muss deshalb vor der Weiterverarbeitung entfernt werden.These bands, which with today's devices in widths of up to to 2 m and thicknesses of 5 to 50 mm are cast on their surfaces the well-known cast skin, which contains oxides, segregations and pores. During further processing E.g. too thin sheets, strips or foils, which affect the surface quality If increased requirements are made, this cast skin has a disruptive effect and must therefore be removed before further processing.
Das Abwalzen der kontinuierlich gegossenen Bänder auf die geforderte Endstärke erfolgt direkt anschliessend an den Giessvorgang unter Srtlsnutzung der Giesswärme. Damit sich aber beim Abwalzen die Gusshaut nicht in der erwähnten, störenden ISeise bemerkbar macht, muss sie vorher abg ragen werden. Bisher ist aber kein Verfahren bekannt, das ein befriedigendes Ergebnis, d.h. eine einwandfreie Oberfläche des fertigen Erzeugnisses gewährleitet hätte.The rolling of the continuously cast strips to the required level The final thickness takes place directly after the casting process using the Srtls Casting heat. However, so that the casting skin does not move in the above-mentioned, disturbing Iis noticeable, it must be checked beforehand. So far there is no procedure known that a satisfactory result, i.e. a perfect surface of the would have guaranteed the finished product.
Die der vorliegenden Erfindung zugrundeliegenden Untersuchungen haben nun überraschenderweise ergeben, dass es möglich ist, eine den Anforderungen entsprechende Oberfläche zu erezielen, wenn mehrere Massnahmen miteinander kombiniert werden. Deren wichtigste ist es dafür zu sorgen, dass die Breitflächen der Bänder genau parallel zueinander verlaufen und dass diese Flächen absolut plan sind.The studies on which the present invention is based have now surprisingly show that it is possible to use a Surface to be achieved when several measures are combined with one another. Their most important is to make sure that the broad areas of the belts are accurate run parallel to each other and that these surfaces are absolutely flat.
Das Verfahren ist dadurch gekennzeichnet, dass das gegossene Band im Anschluss an den Austritt aus der Giessmaschine zunächst geglättet und dann die Gusshaut abgetragen wird.The method is characterized in that the cast tape following the exit from the casting machine, initially smoothed and then the Cast skin is removed.
Dementsprechend ist die Vorrichtung zur Durchführung des Verfahrens dadurch gekennzeichnet, dass anschliessend an die Giessmaschine nacheinander eine Glättvorrichtung, eine Vorrichtung zum Abtragen der Gusshaut sowie Spanentfernungs-und Vorschubvorrichtungen angeordnet sind.The device for carrying out the method is accordingly characterized in that subsequent to the casting machine one after the other Smoothing device, a device for removing the cast skin as well as chip removal and Feed devices are arranged.
Die Glättvorrichtung kann z.B. aus oszillierenden Schmiedewerkzeugen bestehen, welche die Band flächen durch Hammerschläge ausebnen und dadurch die für die Weiterbearbeitung notwendige, plane Oberfläche erzeugen. Derselbe Effekt kann aber auch erreicht werden, wenn das Band anstelle des Schmiedewerkzeugs einb Walzwerk durchläuft. Die Glättung erfolgt vorzugsweise am noch armer. Band. Bander aus Aluminium und Aluminiumlegierungen haben z.B. nach Verlassen der Giessmaschine eine Temperatur von 300 - 600°C.The smoothing device can, for example, consist of oscillating forging tools exist, which level the band surfaces with hammer blows and thereby the for produce the necessary, flat surface for further processing. Can have the same effect but can also be achieved if the strip is a rolling mill instead of the forging tool passes through. The smoothing is preferably done on the poorer. Tape. Aluminum bands and aluminum alloys have a temperature, e.g. after leaving the casting machine from 300 - 600 ° C.
Vor dem Abtragen der Gusshaut wird das Band vorteilhafterweise gekühlt, um seine Oberflächentemperatur herabzusetzen.Before the casting skin is removed, the strip is advantageously cooled, to lower its surface temperature.
Dies kann durch Besprühen mit einer Kühlflüssigkeit oder durch Anblasen mit kalter Luft geschehen. Für die Vorrichtung zum Abtragen der Gusshaut stehen verschiedene Möglichkeiten zur Verfügung: Es können umlaufende Schleifbänder, Schabmesser aus Hartraetall, Walzenfräser mit senkrecht zur Bewegungsrichtung des Bandes liegender Achse, oder Scheibenfräser angeordnet werden. Die Abtragorgane können so angeordnet sein, dass sie einander gerade gegenüberliegen, so dass das Werkstück dazwischen durchläuft. Sie können aber auch in der Bewegungsrichtung -des Werkstücks verset-zt angeordnet sein. Dies bedingt dann, dass gegenüber jedem Abtragorgan ein Stützorgan für das durchlaufende Werkstück vorgesehen wird.This can be done by spraying a coolant or by blowing on it done with cold air. Stand for the device for removing the cast skin Various options are available: Circumferential grinding belts, scraping knives Made of hard metal, cylindrical milling cutter with a perpendicular to the direction of movement of the belt Axis, or side milling cutters can be arranged. The removal organs can be arranged be that they are straight opposite each other so that the workpiece is in between passes through. But they can also be offset in the direction of movement of the workpiece be arranged. This then requires that a support member opposite each removal member is provided for the workpiece passing through.
Durch die Abtragorgane wird eine Oberflächenschicht von etwa 0,2 - 3 mm entfernt.A surface layer of about 0.2 - 3 mm away.
Im Anschluss an die Abtragvorrichtung sorgt eine weitere Vorrichtung für die Entfernung der vom Abtragvorgang auf der Bandoberfläche zurückgebliedenen Metallspäne Diese können mit Luft abgesogen werden, oder es können rotierende Bürsten mit oder.ohne Zufuhr einer Spülflüssigkeit verwendet werden. Jedenfalls ist es wiclltig) dass die Späne restlos entfernt werden, da: sie sonst beim Weiterwalzen in die Bandoberfl'lche eingepresst werden und damit Oberflächen fehler verursachen.Another device takes care of the removal device for the removal of the from the ablation process the belt surface Metal shavings left behind These can be sucked off with air, or it can rotating brushes with or without supply of a rinsing liquid can be used. In any case, it is important that the chips are completely removed, otherwise they will are pressed into the strip surface during further rolling and thus surfaces cause errors.
Dass in einer solchen Bearbeitungsstrasse Vorschubeinrichtungen, z. B. Förderwalzen, angeordnet sein müssen, versteht sich von selbst. Die Vorschubgeschwindigkeit richtet sich nach der Giessgeschwindigkeit und beträgt etwa 1 - 10 m pro Minute.That in such a processing line feed devices, z. B. conveyor rollers, must be arranged, of course. The feed rate depends on the casting speed and is around 1 - 10 m per minute.
Patentansprüche Claims
Claims (9)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH437170A CH497937A (en) | 1970-03-24 | 1970-03-24 | Method and device for the continuous processing of the surfaces of cast metal strips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2114301A1 true DE2114301A1 (en) | 1971-10-14 |
Family
ID=4274850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712114301 Ceased DE2114301A1 (en) | 1970-03-24 | 1971-03-24 | Surface cleaning of continuously cast strip |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE764644A (en) |
| CH (1) | CH497937A (en) |
| DE (1) | DE2114301A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2202735A1 (en) * | 1972-10-17 | 1974-05-10 | Metallurgie Hoboken | |
| DE2418642A1 (en) * | 1974-04-18 | 1975-11-13 | Metallgesellschaft Ag | Continuously cast rolled metal strips esp. aluminium - with continuous alkali surface-treatment, pickling, rinsing and brushing |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2572967B3 (en) * | 1984-11-09 | 1986-12-26 | Siderurgie Fse Inst Rech | PROCESS FOR PREVENTING THE CREATION OF CRACKS ON METAL PRODUCTS PRODUCED BY HORIZONTAL CONTINUOUS CASTING |
| DE4419387C1 (en) * | 1994-05-30 | 1995-08-31 | Mannesmann Ag | Mfr. of continuously cast, closely dimensioned profiles |
-
1970
- 1970-03-24 CH CH437170A patent/CH497937A/en not_active IP Right Cessation
-
1971
- 1971-03-22 BE BE764644A patent/BE764644A/en unknown
- 1971-03-24 DE DE19712114301 patent/DE2114301A1/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2202735A1 (en) * | 1972-10-17 | 1974-05-10 | Metallurgie Hoboken | |
| DE2418642A1 (en) * | 1974-04-18 | 1975-11-13 | Metallgesellschaft Ag | Continuously cast rolled metal strips esp. aluminium - with continuous alkali surface-treatment, pickling, rinsing and brushing |
Also Published As
| Publication number | Publication date |
|---|---|
| CH497937A (en) | 1970-10-31 |
| BE764644A (en) | 1971-08-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| 8131 | Rejection |