Hot strip rolling mill stand
AssigneeMesta Machine Company
InventorRonald D. Pizzedaz
Life of this patent
Estimating the term…
Abstract
A hot strip rolling mill stand, and more particularly a mill stand for use in the hot rolling process of a continuous strip casting system for aluminum, aluminum alloys and other metals, and which includes an improved means for the discrete applications of coolant for cooling rolls and to maintain thermostability and also for applying direct application lubricant for the strip being reduced.
Claims15
In a rolling mill wherein at least upper and lower mill rolls are rotatably mounted in window means of a mill housing to reduce strip passed therebetween and wherein a direct application lubricant is applied to said mill roll on the entry side of such a rolling mill, the improvement comprising:
- applying means to continuously apply such direct application lubricant to adjacent peripheral portions of said mill rolls prior to said adjacent peripheral portions engaging such strip for the reduction thereof;
- and smoothing means spaced from said applying means, of at least said upper mill roll, in the direction of rotation of said upper mill roll and operable to direct a flow of air to said upper mill roll to smooth and control the thickness of such direct application lubricant applied by said applying means to respective adjacent peripheral portions of said at least said upper mill roll prior to said respective adjacent peripheral portions engaging such strip for the reduction thereof.
In a rolling mill having entry and delivery sides for strip passing therethrough and wherein at least upper and lower rolls are rotatably mounted on respective upper and lower bearing chocks in window means of a housing to reduce such strip passed therebetween, said bearing chocks and mill rolls being removable, as a unit, from said window means for roll changing and wherein coolant is applied to said mill rolls on the delivery side of such a rolling mill for cooling said mill rolls, the improvement comprising:
- coolant applying means to apply such coolant to said mill rolls;
- coolant draining and sealing means operable to drain and to seal such coolant into a confined area to prevent any substantial portion of such coolant from contacting such strip;
- said draining and sealing means including a first coolant sealing assembly in wiping engagement with said upper mill roll adjacent the delivery side thereof at a location spaced, in a direction opposite the direction of rotation of said upper mill roll, from the portion of said applying means which applies coolant to said upper mill roll;
- and said first sealing assembly being carried by said upper bearing chock and being removable, as a unit, with said chocks and said mill rolls during roll changing.
In a rolling mill wherein at least upper and lower rolls are rotatably mounted on respective upper and lower bearing chocks in a window of a housing to reduce strip therebetween and said bearing and mill rolls are removable, as a unit, from said window during roll changing, the improvement comprising:
- first applying means to apply coolant to said mill rolls to cool said rolls;
- second applying means to apply direct application lubricant to upper and lower surfaces of such a strip;
- separating means operable to prevent the commingling of such direct application lubricant and such coolant;
- first portions of said separating means being carried by said chocks and being removable with said chocks and said rolls during roll changing;
- and all other portions of said separating means being movably carried by said housing for the selective translation or pivoting thereof to clear said window during said roll changing.
Dependencies are inferred from the claim text.