Twin-belt continuous casting apparatus
US3955615A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 1974 |
| Grant date | May 11, 1976 |
| Priority date | — |
| Expiry date | Nov 11, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/066
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Improved casting side dam apparatus for use in twin-belt continuous metal casting machines is described particularly adapted for casting rectangular copper bar providing a casting speed almost double that obtained in prior twin-belt machines and a damblock lifetime which is more than doubled, while producing a more homogeneous and symmetrical casting structure. The side dams are formed by stringing slotted damblocks along the entire length of a flexible metal strap, except for end portions of the strap. An end-to-end weld forms an endless strap loop of accurately predetermined length, and special damblocks having two mating interlocking halves are inserted into the remaining space along the strap, whereby all blocks are free to slide on the strap but with little cumulative space between blocks, which are preferably made of a bronze alloy presenting better resistance to heat cracking and higher heat conductivity than in previous damblocks. During return travel from the output end of the machine to the input, the side dams are passed by tension apparatus which deflects them along a smoothly curved arc convex toward the interior of the side dam loop to take up any available slack, for…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.