EP0176200A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Production of metal strip and sheet by slip casting
Assignee: Mixalloy Ltd
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Filing: 1985-08-07
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Granted: —
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Expires: 2005-08-07
Abstract
Abstract A process for producing strip from particulate metallic material in which a slurry (2) comprising a suspension of particulate metallic material in a solution of water containing a film forming binder material is deposited as a coating onto a support surface (4) and is heated to gel the binder and to dry the slurry coating, the dried strip subsequently being removed from the support surface and rolled to effect compaction thereof. The ratio of particulate metallic material to water content of the slurry lies within the range 3.4 : 1 and 4.2 : 1 to ensure good flowability of the slurry coatings and to produce the required flat profile in the rolled strip.
Inventors
- 👤 Roy Mathers
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 00:06
CPC Classifications
B; B22; B22F; B22F5/00; B22F5/006; B22F3/00; B22F3/22; B22F2998/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
86 words
1 A process for producing strip from particulate metallic material which comprises forming a slurry comprising a suspension of particulate material in a solution of water containing a film forming binder material, the ratio of particulate metallic material to water of the slurry lying in the range of 3.4:1 and 4.2:1, depositing a coating of the slurry onto a support surface, removing the dried slurry coating from the support surface in the form of a self-supporting green strip, and rolling the strip to effect compaction thereof.
Claim 2
Dependent Claim
86 words
1 A process for producing strip from particulate metallic material which comprises forming a slurry comprising a suspension of particulate material in a solution of water containing a film forming binder material, the ratio of particulate metallic material to water of the slurry lying in the range of 3.4:1 and 4.2:1, depositing a coating of the slurry onto a support surface, removing the dried slurry coating from the support surface in the form of a self-supporting green strip, and rolling the strip to effect compaction thereof.
Claim 3
Dependent Claim
39 words
2 A process as claimed in claim 1 wherein the particulate metallic material is a nickel-containing metallic powder and wherein the ratio of this metallic powder to water content of the slurry lies in the range 3.85:1 and 4.20:1.
Claim 4
Dependent Claim
37 words
3 A process as claimed in claim 2 wherein the particulate metallic material comprises a pre-alloyed nickel chrome powder containing approximately 80% nickel and 20% chromium, the powder to water ratio being of the order of 4.17:1.
Claim 5
Dependent Claim
39 words
4 A process as claimed in claim 1 wherein the particulate metallic material is a cobalt-containing metallic powder and wherein the ratio of this metallic powder to water content of the slurry lies in the range 3.40:1 and 3.60:1.
Claim 6
Dependent Claim
27 words
5 A process as claimed in claim 4 wherein the particulate metallic material comprises a pre-alloyed cobalt/iron powder or a mixture of elemental cobalt and iron powders.
Claim 7
Dependent Claim
37 words
6 A process as claimed in claim 1 wherein the prticulate metallic material consists of pure iron powder and wherein the ratio of this powder to water content of the slurry is of the order of 3.60:1.
Claim 8
Dependent Claim
26 words
7 A process as claimed in claim 1 or claim 2 wherein material trimmed from the roll compacted strip is recycled for re-use in the process.
Claim 9
Dependent Claim
16 words
8 Metal strip produced by a process as claimed in any one of the preceeding claims.
References Cited (Backward Citations)
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