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 discs

Info

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
Application number
GB2393646A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BRITISH PISTON RING Co LT
THOMAS RALPH TWIGGER
Monochrome Ltd
Original Assignee
BRITISH PISTON RING Co LT
THOMAS RALPH TWIGGER
Monochrome Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BRITISH PISTON RING Co LT, THOMAS RALPH TWIGGER, Monochrome Ltd filed Critical BRITISH PISTON RING Co LT
Priority to GB2393646A priority Critical patent/GB620705A/en
Publication of GB620705A publication Critical patent/GB620705A/en
Expired legal-status Critical Current

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.
GB2393646A 1946-08-13 1946-08-13 Electro-deposition of metal on the peripheral surfaces of rings or discs Expired GB620705A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
US3083424A (en) Method for producing coated die castings
GB620705A (en) Electro-deposition of metal on the peripheral surfaces of rings or discs
GB561788A (en) Improvements in or relating to chromium surface layers on cylinder bores, shafts andthe like
US2370970A (en) Abrasive article
US1441569A (en) Collector for dynamos and the like and process for making such collectors
US2218612A (en) Mold for battery grids
DE552428C (en) Cage winding for electrical machines manufactured by casting or injection molding
US985032A (en) Method of forming type-rings and other articles.
GB540990A (en) Improvements in and relating to pistons
FR2417555A1 (en) CHUCKS FOR ELECTRODEPOSITION AND NICKEL PRODUCTION ON THESE CHUCKS
GB551842A (en) Method of separating ingots in a continuous casting process
GB980789A (en) Method for the production of forged light metal pistons with ring carriers
GB542758A (en) Improvements in or relating to piston rings
US3709458A (en) Mold for casting a weighted treble fishing hook
GB145250A (en) Improved process for the production of plates and sheets by electrodeposition
DE563561C (en) Brush holders for electrical machines
US1561233A (en) Method of die casting
GB532727A (en) Improvements in method of making dies
US4130A (en) Improvement in preparing matrices for type by the electrotyping process
SU46333A1 (en) Method of making casting molds
DE623084C (en) Electric salt bath oven
GB1252875A (en)
Knop The Production of Dies for Brass Castings- Technology and Material Selection
GB825443A (en) Improvements in or relating to electrolytic three-layer cells for the refining of aluminium
GB626906A (en) Improved process of casting metals