GB1234463A - - Google Patents
Info
- Publication number
- GB1234463A GB1234463A GB1234463DA GB1234463A GB 1234463 A GB1234463 A GB 1234463A GB 1234463D A GB1234463D A GB 1234463DA GB 1234463 A GB1234463 A GB 1234463A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- cutting
- boring
- electrolyte
- anode
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
1,234,463. Working a metal or metal alloy. STATE OF ISRAEL ATOMIC ENERGY COMMISSION. Aug. 21, 1968 [Feb. 29, 1968], No.40025/68. Heading C7B. A method of working a metal or metal alloy body comprises (a) establishing an electrolytic circuit including an electrolyte with an anode and a cathode immersed therein, in which circuit the electrolyte is HNO 3 and the electrodes are inert to the electrolyte under the operating conditions provided that the cathode is of a different material from the body, (b) introducing the body into the electrolyte in a proximity relationship with the cathode (i.e. so that it either directly physically contacts the cathode or is spaced not more than 10 mms therefrom), (c) flowing unidirectional electric current through the circuit thereby to bring about dissolution of the body only in the zone in proximity relationship with the cathode, (d) maintaining the proximity relationship of the body with the cathode until the desired degree of dissolution is achieved, and then (e) withdrawing the body from the electrolyte. The Fig. shows a body 5 being worked using a cathode 3 and anode 4. More than one cathode may be used. The body and cathode may be gradually moved towards each other. The method may be used in boring, widening bores, cutting or engraving. In cutting or engraving, a pointed cathode may be moved along a predetermined line or a flexible cathode may be wound around the line and be gradually tightened as cutting proceeds. The Examples are of (1) cutting a uranium rod, (2) boring a uranium rod, (3) and (4) cutting and boring a non oxidizable steel pipe, (5) cutting and boring Ni base alloy pipes and (6) boring a uranium rod. Examples 1 to 5 employ a Pt anode and Pt cathode. Example 6 employs a Pt anode and an Al cathode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL2798668 | 1968-02-29 | ||
| IL2954768A IL29547A (en) | 1968-02-29 | 1968-02-29 | Working of metal bodies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1234463A true GB1234463A (en) | 1971-06-03 |
Family
ID=26320431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1234463D Expired GB1234463A (en) | 1968-02-29 | 1968-08-21 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3635805A (en) |
| BE (1) | BE722485A (en) |
| CH (1) | CH508054A (en) |
| DE (1) | DE1790053A1 (en) |
| FR (1) | FR1586334A (en) |
| GB (1) | GB1234463A (en) |
| NL (1) | NL6815325A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5035780A (en) * | 1988-03-25 | 1991-07-30 | Agency Of Industrial Science And Technology | Method of manufacturing a platinum tip |
| US5102520A (en) * | 1990-10-31 | 1992-04-07 | Behr Omri M | Electrolytic etching process and apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2990282A (en) * | 1958-10-29 | 1961-06-27 | Warner C Wicke | Method of etching and composition therefor |
| US3139394A (en) * | 1962-06-20 | 1964-06-30 | North American Aviation Inc | Method and apparatus for electrochemical milling |
| GB1153535A (en) * | 1966-05-09 | 1969-05-29 | Matsushita Electronics Corp | Bath and Process for Electrolytically Etching Indium Arsenide |
-
1968
- 1968-08-12 US US751925A patent/US3635805A/en not_active Expired - Lifetime
- 1968-08-21 GB GB1234463D patent/GB1234463A/en not_active Expired
- 1968-08-29 CH CH1291768A patent/CH508054A/en not_active IP Right Cessation
- 1968-09-03 DE DE19681790053 patent/DE1790053A1/en active Pending
- 1968-10-15 FR FR1586334D patent/FR1586334A/fr not_active Expired
- 1968-10-18 BE BE722485D patent/BE722485A/xx unknown
- 1968-10-25 NL NL6815325A patent/NL6815325A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1790053A1 (en) | 1972-04-13 |
| BE722485A (en) | 1969-04-01 |
| FR1586334A (en) | 1970-02-13 |
| US3635805A (en) | 1972-01-18 |
| CH508054A (en) | 1971-05-31 |
| NL6815325A (en) | 1969-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1300477A (en) | An x-ray tube | |
| ES451238A1 (en) | Electrochemical cell with clovoborate salt in electrolyte and method of operation and composition of matter | |
| FR2410684A1 (en) | SOLAR ENERGY STORAGE PROCESS | |
| GB1435130A (en) | Bipolar electrode connections in bipolar electrolytic filter press cell structures | |
| GB1329811A (en) | Method of forming electrode for alkaline cell | |
| JPS5233824A (en) | Electrolytic cell | |
| JPS51144381A (en) | An electrode | |
| GB1129750A (en) | Electrolytic dissolution of electro-negative metals | |
| GB1234463A (en) | ||
| GB1257022A (en) | ||
| ES432602A1 (en) | Welding method | |
| JPS5451459A (en) | Cathode of electron tube | |
| ES8705050A1 (en) | Process for the electrolytic preparation of rare-earth elements or their alloys, and apparatus for carrying out the process. | |
| GB1325685A (en) | Neutron generators | |
| ES287883A1 (en) | Procedure and apparatus for the obtaining of metallic uranium or an alloy thereof (Machine-translation by Google Translate, not legally binding) | |
| GB1142776A (en) | Decontamination of radioactively contaminated equipment | |
| GB971351A (en) | High power output primary battery | |
| ES455866A1 (en) | Uranium isotopic enrichment | |
| GB1101807A (en) | Electrodes for fuel cells and electrochemical measuring cells | |
| JPS51117182A (en) | Material for bar form electrode for electrolysis of excellent conducti vity and corroston resistance and its manufacture | |
| JPS57200582A (en) | Anode for electrolysis of water | |
| Ross et al. | The nature of the contact in cathodic protection by means of dispersed anodes | |
| GB1219733A (en) | Device for electrochemically marking workpieces | |
| Lyubimov et al. | Experimental Study of the Anodic Solution Mechanism in Metals Under Pulsed Voltage Conditions | |
| GB1253100A (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 416 | Proceeding under section 16 patents act 1949 | ||
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |