Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1988-12-12
1990-04-17
Yee, Deborah
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
428683, 428682, 428679, 148 115Q, 228107, 228158, 228231, B32B 1500, B23H 2000
Patent
active
049179691
ABSTRACT:
The invention comprises a process for the production of clad hot rolled strip. A steel slab as base material is cladded with a layer material of a corrosion-resistnt material. The slab is of a low-alloy steel having a carbon content of up to 0.25% by weight, the layer material preferably is stainless, more particularly a stainless austenitic steel or a wrought alloy on a nickel basis. The steel slab and the layer material are connected by explosive cladding, the resulting composite body being heated to rolling temperature and is subsequently rolled down to one quarter of the initial thickness with a high reduction of pass of phi greater than 0.10 and then rolled to final thickness of the hot rolled strip. The finish rolling temperature is in the range of 900.degree. C. The clad hot rolled strip is subjected to a cooling rate in the core of at least 8.degree. C./s to a cooling temperature of below 650.degree. C. After cooling to this temperature range the clad hot rolled strip is coiled and cooled to room temperature.
REFERENCES:
patent: 4645720 (1987-02-01), Pircher et al.
Kawalla Rudolf
Pircher Hans
Sussek Gerd
Wilms Walter
Wolpert Waldemar
Thyssen Stahl AG
Yee Deborah
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