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EP0198237A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Refractory component

Assignee: Gr Stein Refractories Ltd
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Filing: 1986-03-14
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Granted: —
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Expires: 2006-03-14
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Abstract

Abstract @ In a slide gate valve for a ladle/tundish two refractory members are provided each with an aperture, one fixed and with the aperture in line with an aperture in the bottom of the vessel, and the other slidably mounted to allow the discharge of molten metal from the vessel when the apertures in the refractory members are aligned. Particularly with the bottom slidable member, conventionally it is formed from a refractory plate against which abutts a separate collector nozzle. The object of the invention is to provide an improvement to such a member, which objective is met by a construction comprising a pre-formed apertured member serving as an exposed plate, and a second member formed as a casting around said apertured member, the second member being formed with an integral nozzle the bore of which is in alignment with the aperture in the said apertured member.

Inventors

  • 👤 James Kenneth Forster
  • 👤 Eric George Tucker

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 13:26
CPC Classifications
B; B22; B22D; B22D41/00; B22D41/14; B22D41/22; B22D41/28

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 60 words
A composite plate/nozzle component for use in a slide gate valve characterised by a pre-formed apertured member (2) serving as an exposed plate, and a second member (3) formed as a casting around said apertured member, the second member being formed with an integral nozzle the bore of which is in alignment with the aperture in the said apertured member.
Claim 2
Dependent Claim 60 words
A composite plate/nozzle component for use in a slide gate valve characterised by a pre-formed apertured member (2) serving as an exposed plate, and a second member (3) formed as a casting around said apertured member, the second member being formed with an integral nozzle the bore of which is in alignment with the aperture in the said apertured member.
Claim 3
Dependent Claim 25 words
A composite component as in Claim 1, characterised in that the component constitutes a slide plate and integral collector nozzle for a slide gate valve.
Claim 4
Dependent Claim 21 words
A composite component as in Claim 1 or Claim 2, characterised in that the apertured member (2) is an annular ring.
Claim 5
Dependent Claim 31 words
A composite component as in Claim 1 or Claim 2, characterised in that the apertured member (2) is elongate and the aperture located centrally of the major axis of the member.
Claim 6
Dependent Claim 30 words
A composite component as in Claim 1 or Claim 3, characterised in that the apertured member (2) is elongate, and the aperture offset along the major axis of the member.
Claim 7
Dependent Claim 34 words
A composite component as in any one of Claims 1 to 5, characterised in that the apertured member is formed with a stem (5) the bore of which is an extension of the aperture.
Claim 8
Dependent Claim 27 words
A composite component as in Claim 6, characterised in that the outer periphery of the head of the apertured member and/or the stem is stepped or tapered.
Claim 9
Dependent Claim 24 words
A composite component as in any of Claims 1 to 7, characterised in that the component is provided with a metal casing (1a, 1b).
Claim 10
Independent Claim 83 words
A method of making a composite component as in any of Claims 1 to 8, characterised by mounting a metal casing (1a , 1b) within a jig having a central mandrel with the "plate" uppermost, pouring a castable refractory (3) into the casing, vibrating the casing to ensure compaction of the castable locating a pre-formed insert on the mandrel and pressing the insert (2) into the mix to a degree such that it lies in substantial alignment with the top of the plate.
Claim 11
Independent Claim 53 words
A method of making a composite component in any of Claims 1 to 8, characterised by locating a pre-formed insert (2) around a mandrel upstanding from a vibrating table placing a casing (1a, 1b) over the insert and pouring a castable refractory (3) into the casing and around the insert and the mandrel.

References Cited (Backward Citations)

DE1935424A1 Cited
AT304782B Cited
DE2727742A1 Cited
DE2844951A1 Cited
EP0080248A1 Cited

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