A clad material includes a first layer made of stainless steel and a second layer made of Cu or a Cu alloy and roll-bonded to the first layer. In the clad material, a grain size of the second layer measured by a comparison method of JIS H 0501 is 0.150 mm or less.

A method for preparing an alternating arrangement silver-copper lateral composite ingot, including: using a concave roller set; manufacturing a copper frame having a fixed width according to a negative tolerance of a width of the grooves of the concave roller, and corresponding copper bars and silver bars, and performing a surface treatment on the copper frame, the copper bars, and the silver bars; and then arranging different number of copper bars and silver bars at internals as needed and tightly placing into the copper frame to form a composite blank, i.e., a composite ingot. A method for preparing an alternating arrangement silver-copper lateral composite strip is further provided, and the silver-copper lateral composite ingot prepared by the method for preparing the alternating arrangement silver-copper lateral composite ingot is used to prepare the silver-copper lateral composite strip.

A roll-bonded clad metal sheet and a method for producing a roll-bonded clad metal sheet is provided. The roll-bonded clad sheet includes a metallic base material layer and a metallic cladding material layer which are joined to one another by a metallurgical bond. The metallic cladding material layer includes a nickel-based material whose chemical composition includes, in % by mass, a proportion of more than 50% of Ni and a proportion of 3.1% of Nb. The metallurgical bond is obtained by a thermomechanical rolling process including a first rolling phase for prerolling, a second rolling phase for final forming and a cooling time between the first rolling phase and the second rolling phase, wherein a final rolling temperature of the second rolling phase is set to a value equal to or less than 880 C.

A roll-bonded clad metal sheet and a method for producing a roll-bonded clad metal sheet is provided. The roll-bonded clad sheet includes a metallic base material layer and a metallic cladding material layer which are joined to one another by a metallurgical bond. The metallic cladding material layer includes a nickel-based material whose chemical composition includes, in % by mass, a proportion of more than 50% of Ni and a proportion of 3.1% of Nb. The metallurgical bond is obtained by a thermomechanical rolling process including a first rolling phase for prerolling, a second rolling phase for final forming and a cooling time between the first rolling phase and the second rolling phase, wherein a final rolling temperature of the second rolling phase is set to a value equal to or less than 880 C.

A clad material (30) includes a first layer (31) made of stainless steel, a second layer (32) made of Cu or a Cu alloy and roll-bonded to the first layer, and a third layer (33) made of stainless steel and roll-bonded to a side of the second layer opposite to the first layer. The clad material has an overall thickness of 1 mm or less, and in a cross-sectional view along a stacking direction, a minimum thickness of the first layer in the stacking direction and a minimum thickness of the third layer in the stacking direction are 70% or more and less than 100% of an average thickness of the first layer in the stacking direction and an average thickness of the third layer in the stacking direction, respectively.

A clad material (30) includes a first layer (31) made of stainless steel, a second layer (32) made of Cu or a Cu alloy and roll-bonded to the first layer, and a third layer (33) made of stainless steel and roll-bonded to a side of the second layer opposite to the first layer. The clad material has an overall thickness of 1 mm or less, and in a cross-sectional view along a stacking direction, a minimum thickness of the first layer in the stacking direction and a minimum thickness of the third layer in the stacking direction are 70% or more and less than 100% of an average thickness of the first layer in the stacking direction and an average thickness of the third layer in the stacking direction, respectively.

A method for producing a metal plate having at least one embedded temperature sensor and to a metal plate produced by the method. The metal plate is produced from a plurality of layers or plate bodies, which are diffusion-connected to each other by thermal pretreatment and subsequent rolling. A sheathed thermocouple is rolled, as the temperature sensor, into the metal plate during the production of the metal plate, or a protective tube made of metal is rolled into the metal plate, into which protective tube a sheathed thermocouple can be inserted after the metal plate has been processed further to form a cooking vessel.

A clad material includes a first layer made of stainless steel and a second layer made of Cu or a Cu alloy and roll-bonded to the first layer. In the clad material, a grain size of the second layer measured by a comparison method of JIS H 0501 is 0.150 mm or less.

A clad material includes a first layer made of stainless steel and a second layer made of Cu or a Cu alloy and roll-bonded to the first layer. In the clad material, a grain size of the second layer measured by a comparison method of JIS H 0501 is 0.150 mm or less.

A metal foil bonding device (50) for bonding pieces of metal foil (2) on the successively conveyed sheet-shaped electrodes (1) on the conveyor plates (20) is provided. When it is detected that there is an abnormality in a piece of metal foil (2) to be bonded to the sheet-shaped electrode (1) on the conveyor plate (20) next conveyed to the metal foil bonding device (50), the conveyor plate (20) next conveyed to the metal foil bonding device (50) is temporarily stopped right before the metal foil bonding device (50).