Clad rolling mill for joining one or more profiles
AssigneeLuvata Oy
InventorsMark Irwin, Hans Keife
Life of this patent
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Abstract
A clad-rolling mill adapted to produce a metal tube. The clad-rolling mill includes a first and a second clad-roll arranged to jointly form a nip for clad-rolling. The first and the second clad-rolls are adapted to clad-roll one or more metal profiles arranged to form at least one channel for conduction of a fluid. The first and the second clad-rolls are shaped to clad-roll a first and a second portion of the one or more metal profiles to each other, so that the first and the second portions are joined with each other, wherein the first and the second portions form a seal that holds the one or more metal profiles together.
Claims29
A method for producing a metal tube, comprising:
- arranging one or more metal profiles (3, 5) to form at least one channel (7a-c) for conduction of a fluid,
- feeding the one or more metal profiles into a clad-rolling mill, and
- clad-rolling at least a first (9) and a second portion (11) of the one or more metal profiles to each other, so that the first and the second portions are joined with each other, wherein the first and the second portions form a seal (13) that holds the one or more metal profiles together.
A method according to any of the previous claims, characterized in that the metal profiles are clad-rolled so that the thickness of the material of the first (9) and second portions (11) decreases to less than 60% of the original thickness after the clad-rolling.
A method according to any of the previous claims, characterized in that the method comprises transferring a sec- and form of energy to the first and second portions in connection with the clad-rolling of the first and second portions.
A method according to any of the previous claims, characterized in that the method comprises shaping a section of at least one metal profile to bulge, in order to form a channel from the bulging section (19a-c, 21a-c;
- 67).
A method according to any of the previous claims, characterized in that the method comprises flattening of a wall section of the channel.
A method according to any of the previous claims, characterized in that the method comprises heating the at least one metal profiles (3, 5) to a temperature of at least 200° C.
A clad-rolling mill comprising a first and a second clad-roll (37) arranged to jointly form a nip (39) for clad-rolling, characterized in that the first and the second clad-rolls (37) are adapted to clad-roll one or more metal profiles arranged to form at least one channel for conduction of a fluid, wherein the first and the second clad-rolls are shaped to clad-roll a first (9) and a second portion (11) of the one or more metal profiles to each other, so that the first and the second portions are joined with each other, wherein the first and the second portions form a seal that holds the one or more metal profiles together.
A metal tube comprising one or more metal profiles (3, 5) arranged so that the one or more metal profiles form at least one channel (7a-c) for conduction of a fluid, characterized in that the one or more metal profiles comprise a first (9) and a second portion (11) joined with each other by clad-rolling, wherein the clad rolled portions jointly form a clad-rolled seal (13), that holds the at least one metal profiles together.
Dependencies are inferred from the claim text.