Guide tube end-piece, assembly and method
AssigneeAffival
InventorsJames Schwadron, Leslie Niemi, Gregory Marzec
Life of this patent
Estimating the term…
Abstract
An end-piece for an additive guide tube is disclosed. Such an end piece may have a durable sleeve and a sloughable sleeve. The sloughable sleeve may have a channel through which an additive may be delivered, and the sloughable sleeve may reside in the through-hole of the durable sleeve and may be secured to the durable sleeve. When molten metal contacts the sloughable sleeve, the sloughable sleeve burns or melts and sloughs off, thereby preventing the molten metal and slag from sticking to the end-piece, which in turn prevents buildup of metal and slag.
Claims32
An additive guide tube end-piece, comprising:
- a durable sleeve having a first end and a second end, and having an inner surface defining a through-hole extending from the first end to the second end;
- a sloughable sleeve having a channel through which an additive may be delivered, the sloughable sleeve residing in the through-hole of the durable sleeve and being secured to the durable sleeve.
An additive guide tube assembly, comprising:
- a durable sleeve having a receiving end and a dispensing end, and having an inner surface defining a through-hole extending from the receiving end to the dispensing end;
- a sloughable sleeve having a channel through which an additive may be delivered, the sloughable sleeve residing in the through-hole of the durable sleeve and being secured to the durable sleeve;
- an additive guide tube residing in the channel of the sloughable sleeve and being secured to the sloughable sleeve.
A method of dispensing an additive, comprising:
- providing a guide-tube assembly having:
- (a) a durable sleeve having a receiving end and a dispensing end, and having an inner surface defining a through-hole extending from the receiving end to the dispensing end;
- (b) a sloughable sleeve having a channel through which an additive may be delivered, the sloughable sleeve residing in the through-hole of the durable sleeve and being secured to the durable sleeve;
- (c) an additive guide tube residing in the channel of the sloughable sleeve and being secured to the sloughable sleeve;
- positioning the durable sleeve proximate to molten metal;
- providing an additive to the molten metal by feeding the additive through the sleeves from the receiving end toward the dispensing end.
Dependencies are inferred from the claim text.