The present invention relates to a method and a device for manufacturing plate part blanks for a heat exchanger. A sheet material (2) in the form of continuous sheeting is worked between two rolls (5, 6) with opposite surface patterns (7, 7′, 8) to form profiled plate part blanks (3, 3′,3″) into the sheet material (2) so that the rolls (5, 6) are synchronized to rotate at substantially same rate by controlling the rotation of them in relation to each other with common synchronization gear (9), which gear is coupled to the rolls (5, 6) by means of shafts (10, 11) with disk pack or gear couplings.

The invention relates to a method for producing tailored sheet-metal strips, in which at least one sheet-metal strip having a substantially planar surface is integrally connected along its longitudinal edge to at least one further web-shaped semifinished product made of metal, wherein the at least one further web-shaped semifinished product differs from the at least one sheet-metal strip in terms of at least one of its properties, and wherein the at least one sheet-metal strip and the at least one further web-shaped semifinished product are fed continuously to at least one joining station, characterized in that a web-shaped semifinished product having a three-dimensional structure, a hollow profile and/or a multiplicity of recesses and/or holes in succession along its longitudinal edge is used as the at least one further web-shaped semifinished product which is fed to the joining station. An apparatus for carrying out the method is furthermore claimed.

The present invention discloses a method for rolling a metal composite plate/strip, comprising the following steps: 1) selecting a metal base plate and a metal cladding plate, cleaning the surfaces of the base plate and the cladding plate to be composited until the metal matrixes are exposed; 2) sequentially laminating the base plate and the cladding plate to obtain a composite plate slab; 3) rolling the composite plate slab through a composite rough rolling mill having a corrugated roll to obtain a composite plate having a corrugated mating surface on its composite surface; and 4) flattening the composite plate having a complete corrugated cladding plate by a composite finish rolling mill to a desirable thickness to obtain a composite plate/strip.

The present invention discloses a method for rolling a metal composite plate/strip, comprising the following steps: 1) selecting a metal base plate and a metal cladding plate, cleaning the surfaces of the base plate and the cladding plate to be composited until the metal matrixes are exposed; 2) sequentially laminating the base plate and the cladding plate to obtain a composite plate slab; 3) rolling the composite plate slab through a composite rough rolling mill having a corrugated roll to obtain a composite plate having a corrugated mating surface on its composite surface; and 4) flattening the composite plate having a complete corrugated cladding plate by a composite finish rolling mill to a desirable thickness to obtain a composite plate/strip.

In the present invention, when synchronization is lost due to backlash, and deviation between the rotational phases of a first processing roll and a second processing roll occurs, deviation between the rotational phases of dummy rotating bodies also occurs, and dummy blade parts of the dummy rotating bodies interfere with each other before blade parts of cutting blades of the first processing roll and the second processing roll (40) interfere with each other. Thus, interference between the blade parts is prevented.

In the present invention, when synchronization is lost due to backlash, and deviation between the rotational phases of a first processing roll and a second processing roll occurs, deviation between the rotational phases of dummy rotating bodies also occurs, and dummy blade parts of the dummy rotating bodies interfere with each other before blade parts of cutting blades of the first processing roll and the second processing roll (40) interfere with each other. Thus, interference between the blade parts is prevented.

Provided is a method of manufacturing a metal catalyst support including: transferring a plate member of the same size along a transfer unit; aligning the plate member so that a front portion of the plate member is located at a start point when the plate member reaches a set position; forming a corrugated plate by alternately forming a first corrugated portion and a second corrugated portion on the plate member which is aligned at the start point; and laminating the fabricated corrugated plates and the flat plates alternately in a case.

Provided is a method of manufacturing a metal catalyst support including: transferring a plate member of the same size along a transfer unit; aligning the plate member so that a front portion of the plate member is located at a start point when the plate member reaches a set position; forming a corrugated plate by alternately forming a first corrugated portion and a second corrugated portion on the plate member which is aligned at the start point; and laminating the fabricated corrugated plates and the flat plates alternately in a case.

An elongate profile (1) having a first portion (2) and a second portion (3), the first and second portions (2, 3) being joined together at a first joining portion (JP1), the first and second portions (2, 3) being non collinear, the joining portion (JP1) comprising an array of raised or rebated formations (10a), each formation extending across the joining portion (JP1) in a direction which is non-parallel to the principal axis of the profile and flat lands being provided between successive formations in an array (10A) and the pitch (P) between successive formations in an array being from 2 to 20 times, for example from 5 to 15 times, the thickness (G) of the flatlands.

An elongate profile (1) having a first portion (2) and a second portion (3), the first and second portions (2, 3) being joined together at a first joining portion (JP1), the first and second portions (2, 3) being non collinear, the joining portion (JP1) comprising an array of raised or rebated formations (10a), each formation extending across the joining portion (JP1) in a direction which is non-parallel to the principal axis of the profile and flat lands being provided between successive formations in an array (10A) and the pitch (P) between successive formations in an array being from 2 to 20 times, for example from 5 to 15 times, the thickness (G) of the flatlands.