British Steel Plc.

George Jackson

Terence Fieldsend

John Wooddisse

For the production of strip material particulate metalliferous material is fed from a hopper into and through the roll gap formed between a pair of contra-rotating compaction rolls. The ends of the roll gap are closed off by means of endless belts which engage the opposite end faces of the compaction rolls and in order to counteract the tendency of particulate material to be drawn into the end zones of the roll gap by the endless belts means are provided for restricting the flow of particulate material to these end zones. By the provision of such restricting means the rate at which particulate material enters the roll gap is substantially uniform along its entire length.

Apparatus for production of metal strip

A furnace for continuously heat treating metallic strip comprises a substantially flat horizontal entry floatation table having a trailing portion which inclines downwardly towards the base of a floatation trough. The trough extends along substantially the full length of the heating zone furnace. An exit table includes a leading portion which inclines upwardly from the base of the trough to a generally horizontal flat floatation surface. Entry and exit seals are positioned above the entry and exit tables respectively.

Hover furnaces

Metal strip is continuously produced by compacting metal powder to form a green strip, feeding the green strip to a sinter furnace and supporting the strip on a gaseous cushion as it is transported through the furnace, the strip transport being controlled to maintain the tensile stress applied to the strip as it passes through the furnace substantially zero. The strip may be fed through the furnace by means of pinch rolls located at entry to and exit from the furnace, the respective speeds of rotation of the pinch rolls being interrelated to accommodate shrinkage of the strip as it passes through the furnace.

Growing community of inventors

Sheffield, United Kingdom

George Jackson