GB620705A - Electro-deposition of metal on the peripheral surfaces of rings or discs - Google Patents
Electro-deposition of metal on the peripheral surfaces of rings or discsInfo
- Publication number
- GB620705A GB620705A GB2393646A GB2393646A GB620705A GB 620705 A GB620705 A GB 620705A GB 2393646 A GB2393646 A GB 2393646A GB 2393646 A GB2393646 A GB 2393646A GB 620705 A GB620705 A GB 620705A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rings
- wax
- discs
- metal
- spaces
- 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
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/04—Tubes; Rings; Hollow bodies
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
620,705. Electrodeposition of metals. BRITISH PISTON RING CO., Ltd., TWIGGER, T. R., MONOCHROME, Ltd., and HALL, H. C. Aug. 13, 1946, No. 23936. [Class 41] Metal such as chromium is electrodeposited on the peripheral surfaces of rings or discs, e.g. piston rings, by stacking the rings or discs one upon the other, interposing therebetween spacing washers which are of such size and shape as to leave peripheral spaces between the rings, filling these spaces with a removable material such as wax which is non-receptive to the deposition of the metal, electroplating the stack and subsequently removing the wax. The stack of piston rings 7 with spacing washers 9 therebetween may be formed between end plates 1, 11 within a hollow shell 5 and clamped together by means of tie-rods 3 connecting the end plates. The stack is removed from the shell 5 and dipped in molten wax which after solidification is removed as by a machining operation from the peripheral surfaces, leaving the wax in the spaces 15. After electrodeposition, the remaining wax is removed as by heating. The spacing washers 9 may each be provided with, e.g. six, notches 17 which extend inwardly to a depth slightly greater than that of the piston rings so that wax will also be deposited in the spaces 19 behind the rings and have a keying effect to retain the wax within recesses 15. The rings or discs may be subsequently heated to remove occluded gas from the deposited layer of metal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2393646A GB620705A (en) | 1946-08-13 | 1946-08-13 | Electro-deposition of metal on the peripheral surfaces of rings or discs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2393646A GB620705A (en) | 1946-08-13 | 1946-08-13 | Electro-deposition of metal on the peripheral surfaces of rings or discs |
Publications (1)
Publication Number | Publication Date |
---|---|
GB620705A true GB620705A (en) | 1949-03-29 |
Family
ID=10203713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2393646A Expired GB620705A (en) | 1946-08-13 | 1946-08-13 | Electro-deposition of metal on the peripheral surfaces of rings or discs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB620705A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2761828A (en) * | 1954-08-16 | 1956-09-04 | Univ Leland Stanford Junior | Method of forming internally flanged structures |
US2846379A (en) * | 1951-06-14 | 1958-08-05 | Gen Motors Corp | Plating equipment and method of plating piston rings |
DE3902057A1 (en) * | 1989-01-25 | 1990-07-26 | Goetze Ag | Appliance for electroplating annular workpieces |
CN101899698A (en) * | 2010-08-12 | 2010-12-01 | 李冰 | Plating process of slip rings |
CN103243363A (en) * | 2012-02-07 | 2013-08-14 | 中山市盈科轴承制造有限公司 | Locally-electroplating mold |
-
1946
- 1946-08-13 GB GB2393646A patent/GB620705A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2846379A (en) * | 1951-06-14 | 1958-08-05 | Gen Motors Corp | Plating equipment and method of plating piston rings |
US2761828A (en) * | 1954-08-16 | 1956-09-04 | Univ Leland Stanford Junior | Method of forming internally flanged structures |
DE3902057A1 (en) * | 1989-01-25 | 1990-07-26 | Goetze Ag | Appliance for electroplating annular workpieces |
CN101899698A (en) * | 2010-08-12 | 2010-12-01 | 李冰 | Plating process of slip rings |
CN103243363A (en) * | 2012-02-07 | 2013-08-14 | 中山市盈科轴承制造有限公司 | Locally-electroplating mold |
CN103243363B (en) * | 2012-02-07 | 2016-01-20 | 中山市盈科轴承制造有限公司 | Locally-electroplatimold mold |
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