GB879590A - Improvements relating to the forming of sintered articles - Google Patents
Improvements relating to the forming of sintered articlesInfo
- Publication number
- GB879590A GB879590A GB684259A GB684259A GB879590A GB 879590 A GB879590 A GB 879590A GB 684259 A GB684259 A GB 684259A GB 684259 A GB684259 A GB 684259A GB 879590 A GB879590 A GB 879590A
- Authority
- GB
- United Kingdom
- Prior art keywords
- container
- powder
- extrusion
- tube
- shoulder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/32—Burning methods
- C04B33/326—Burning methods under pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/26—Extrusion presses; Dies therefor using press rams
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/32—Burning methods
Abstract
879,590. Powder metallurgy. CHESTERFIELD TUBE CO. Ltd. Jan. 28, 1960 [Feb. 27, 1959], No. 6842/59. Class 82(1) [Also in Group XXII] A sintered extruded article is formed by charging sinterable powders such as a boron bearing steel powder into an open ended container 10, closing the open end with a disc 11, heating the powder and container which is then compacted in an extrusion press at a temperature high enough to sinter the powder, and then applying further pressure to extrude the container and sintered body through the extrusion die. The steel powder may contain 4% to 11% of boron and may be precompacted before charging into the container. The disc 11 which may be stainless steel can either have its outer end flush with the end of the container 10 (Fig. 1) in which case an intermediate pad 13 having a shoulder 15 effects the initial compaction until the shoulder 15 engages the container wall, further pressure then resulting in extrusion of the powder and container, or a thicker disc 17 (Fig. 4) and an intermediate pad 18 with no shoulder may be used. A tubular article may be produced by securing an internal tube in the container, packing the powder around the tube so that a mandrel on the press ram enters the tube on compaction and extrusion. After extrusion the outer sheath of the container material e.g. mild steel and the inner lining of the tube material can be removed from the sintered compact by pickling or machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB684259A GB879590A (en) | 1959-02-27 | 1959-02-27 | Improvements relating to the forming of sintered articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB684259A GB879590A (en) | 1959-02-27 | 1959-02-27 | Improvements relating to the forming of sintered articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB879590A true GB879590A (en) | 1961-10-11 |
Family
ID=9821746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB684259A Expired GB879590A (en) | 1959-02-27 | 1959-02-27 | Improvements relating to the forming of sintered articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB879590A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3384481A (en) * | 1967-07-06 | 1968-05-21 | Mallory & Co Inc P R | Method of forming composites of thermally unstable materials |
| US4575450A (en) * | 1983-07-21 | 1986-03-11 | Pechiney | Process for obtaining extruded semifinished products from high resistance aluminum alloy powder |
| CN109262931A (en) * | 2018-09-06 | 2019-01-25 | 陈烈 | A kind of high voltage bearing lining of pipe line molding machine and its forming method |
-
1959
- 1959-02-27 GB GB684259A patent/GB879590A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3384481A (en) * | 1967-07-06 | 1968-05-21 | Mallory & Co Inc P R | Method of forming composites of thermally unstable materials |
| US4575450A (en) * | 1983-07-21 | 1986-03-11 | Pechiney | Process for obtaining extruded semifinished products from high resistance aluminum alloy powder |
| CN109262931A (en) * | 2018-09-06 | 2019-01-25 | 陈烈 | A kind of high voltage bearing lining of pipe line molding machine and its forming method |
| CN109262931B (en) * | 2018-09-06 | 2023-06-02 | 陈烈 | High-pressure-resistant pipeline lining forming device and forming method thereof |
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