GB949553A - Method and arrangement for preparing heated short pieces of steel rod and feeding the same to a hot forming plant - Google Patents
Method and arrangement for preparing heated short pieces of steel rod and feeding the same to a hot forming plantInfo
- Publication number
- GB949553A GB949553A GB579162A GB579162A GB949553A GB 949553 A GB949553 A GB 949553A GB 579162 A GB579162 A GB 579162A GB 579162 A GB579162 A GB 579162A GB 949553 A GB949553 A GB 949553A
- Authority
- GB
- United Kingdom
- Prior art keywords
- workpieces
- tube
- billet
- heated
- ram
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/40—Direct resistance heating
-
- 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
- B21B45/004—Heating the product
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0004—Devices wherein the heating current flows through the material to be heated
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
949,553. Making billets for forging or rolling. BROWN, BOVERI & CO. Ltd. Feb. 15, 1962 [Feb. 17, 1961], No. 5791/62. Headings B3A, B3H and B3M. A method of making hot steel workpeices 6<SP>1</SP> comprises electric resistance heating a billet 4 whose length is a multiple of the length L of a workpiece and dividing the billet into workpieces 6, the billet or the workpieces being passed through an insulated and/or heated tube 8 where the temperature is equalized. The billet 4 is heated between electrodes 2 connected to a transformer 1 and is then divided by a set of flame cutters 5. The workpieces 6 are pushed by a ram 7 through a steel tube 8 insulated externally and fitted with a liner of wear resistant ceramic or sintered material; the tube is electric resistance heated to produce a workpiece temperature of 1100‹ C. and may be supplied with a protective gas. A second tube 8<SP>1</SP> and ram 71 are used alternately with the first tube 8 and ram 7 to provide continuous operation. The workpieces 6<SP>1</SP> are discharged from the respective tubes by the rams and passed to a forging press. Alternatively the billet 4 may be passed through the equalization tube before being divided into workpieces. In another embodiment, Fig. 3 (not shown), the heated workpieces are fed on a roller conveyer to a rolling mill. Certain types of workpieces may by-pass the equalization tube. Reference is made to workpieces of high alloy steel.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB61332A DE1178452B (en) | 1961-02-17 | 1961-02-17 | Method and device for resistance heating of steel, relatively short rods |
Publications (1)
Publication Number | Publication Date |
---|---|
GB949553A true GB949553A (en) | 1964-02-12 |
Family
ID=6973159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB579162A Expired GB949553A (en) | 1961-02-17 | 1962-02-15 | Method and arrangement for preparing heated short pieces of steel rod and feeding the same to a hot forming plant |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH416877A (en) |
DE (1) | DE1178452B (en) |
GB (1) | GB949553A (en) |
SE (1) | SE301202B (en) |
-
1961
- 1961-02-17 DE DEB61332A patent/DE1178452B/en active Pending
-
1962
- 1962-02-15 SE SE167462A patent/SE301202B/xx unknown
- 1962-02-15 GB GB579162A patent/GB949553A/en not_active Expired
- 1962-02-16 CH CH191862A patent/CH416877A/en unknown
Also Published As
Publication number | Publication date |
---|---|
CH416877A (en) | 1966-07-15 |
DE1178452B (en) | 1964-09-24 |
SE301202B (en) | 1968-05-27 |
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