A cooling plate ( 1 ) made of copper or a copper alloy for blast furnaces has a plurality of bore holes ( 6 ) for accommodating a cooling medium. The bore holes ( 6 ) are connected to a cooling medium intake ( 12 ) and a cooling medium outlet via connecting pipes ( 9 ) that are welded onto the cold side of the plate ( 5 ). Connecting pipes ( 9 ), at their plate ends ( 14 ), are furnished with flanges ( 15 ) that are formed by being flanged open. These flanges ( 15 ) are set into recesses ( 17 ) in the cold side of the plate ( 5 ), and are welded at their circumference by V seams ( 19 ) to the cold side of the plate ( 5 ).
1. A cooling plate made of copper or a copper alloy for blast furnaces, comprising a plurality of bore holes for accommodating a cooling medium, the bore holes being connected to a cooling medium intake and a cooling medium outlet via connecting pipes that are welded onto a cold side of the plate, wherein the connecting pipes are furnished with flanges at their plate ends, have their flanges set into the recesses of the cold side of the plate, and are welded at an outer circumference of the flanges to the cold side of the plate,
wherein the flanges on the connecting pipes are provided with bevels at their outer circumference and the recesses in the cold side of the plate are provided at with bevels at an inner circumference of the recesses.
2. The cooling plate according to claim 1 , wherein the flanges on connecting pipes are formed by flanging open the plate ends of the connecting pipes.
3. The cooling plate according to claim 1 , wherein the flanges on connecting pipes are formed by flanging open the plate ends of the connecting pipes.
4. The cooling plate according to claim 2 , wherein the connecting pipes are blasted in concave transitional regions of the flanges.
5. The cooling plate according to claim 3 , wherein the connecting pipes are blasted in concave transitional regions of the flanges.
6. The cooling plate according to claim 1 , wherein each bore hole is connected to the cooling medium intake and the cooling medium outlet via the connecting pipes.
7. The cooling plate according to claim 1 , wherein each bore hole is connected to the cooling medium intake and the cooling medium outlet via the connecting pipes.
8. The cooling plate according to claim 2 , wherein each bore hole is connected to the cooling medium intake and the cooling medium outlet via the connecting pipes.
9. The cooling plate according to claim 1 , wherein at least two adjacent bore holes are connected to the cooling medium intake and the cooling medium outlet by one connecting pipe, respectively.
10. The cooling plate according to claim 1 , wherein at least two adjacent bore holes are connected to the cooling medium intake and the cooling medium outlet by one connecting pipe, respectively.
11. The cooling plate according to claim 2 , wherein at least two adjacent bore holes are connected to the cooling medium intake and the cooling medium outlet by one connecting pipe, respectively.
12. The cooling plate according to claim 1 , wherein the plate ends of the connecting pipes are shaped to be oval.
13. The cooling plate according to claim 1 , wherein the plate ends of the connecting pipes are shaped to be oval.
14. The cooling plate according to claim 2 , wherein the plate ends of the connecting pipes are shaped to be oval.
15. The cooling plate according to claim 1 , wherein the connecting pipes, that are made of one of copper and a copper alloy, are furnished with collars of steel, at a distance from the flanges.
16. The cooling plate according to claim 1 , wherein the connecting pipes, that are made of one of copper and a copper alloy, are furnished with collars of steel, at a distance from the flanges.
17. The cooling plate according to claim 2 , wherein the connecting pipes, that are made of one of copper and a copper alloy, are furnished with collars of steel, at a distance from the flanges.
18. The cooling plate according to claim 1 , wherein in the case of the connecting pipes that are made of one of a steel and a steel alloy, one of the bevels on the connecting pipes and the bevels in the recesses are coated with nickel.
19. The cooling plate according to claim 1 , wherein the connecting pipes are furnished with flanges that are welded on.