GB1231242A - - Google Patents
Info
- Publication number
- GB1231242A GB1231242A GB1231242DA GB1231242A GB 1231242 A GB1231242 A GB 1231242A GB 1231242D A GB1231242D A GB 1231242DA GB 1231242 A GB1231242 A GB 1231242A
- Authority
- GB
- United Kingdom
- Prior art keywords
- barrel
- workpieces
- blacking
- caustic
- bath
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
- C23C22/62—Treatment of iron or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
1,231,242. Blackening iron or steel. THOMAS WALKER Ltd. June 2, 1969 [April 5, 1968], No.16380/68. Heading C7U. In the "blacking" of small iron or steel workpieces in bulk involving treatment in a caustic blacking bath for a predetermined time at 280‹F. to 320‹F. the workpieces are first loaded into a rotatably mounted perforated barrel which is then pre-heated and immersed in the caustic blacking bath whilst being caused to revolve to ensure uniform mixing of the workpieces with the treating solution. In Fig. 1, the first of three tanks, all of which are gas-heated at 14 as shown, is filled with water, and acts as a pre-heater for perforated barrel 15 and the workpieces. Barrel 15 is transferred by hoist 26 to blacking tank 11, and carrier frame 18 seats on bracket 19 such that motor 25, via 23 and 20, rotates the barrel, and on completion of treatment, e.g. with caustic alkali and an oxidizing agent, the barrel 15 is transferred by hoist 26 to rinsing bath 12.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1638068 | 1968-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1231242A true GB1231242A (en) | 1971-05-12 |
Family
ID=10076277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1231242D Expired GB1231242A (en) | 1968-04-05 | 1968-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1231242A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104498930A (en) * | 2014-12-06 | 2015-04-08 | 苏州欣航微电子有限公司 | Surface passivation device of front mesh enclosure of fan |
| WO2018210377A1 (en) * | 2017-05-17 | 2018-11-22 | Schaeffler Technologies AG & Co. KG | Method for the surface modification of at least one component and reactor device for carrying out the method |
| CN117246710A (en) * | 2023-11-13 | 2023-12-19 | 宁波勋辉电器有限公司 | Feeding and discharging mechanism for passivation of display screen backboard |
-
1968
- 1968-04-05 GB GB1231242D patent/GB1231242A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104498930A (en) * | 2014-12-06 | 2015-04-08 | 苏州欣航微电子有限公司 | Surface passivation device of front mesh enclosure of fan |
| WO2018210377A1 (en) * | 2017-05-17 | 2018-11-22 | Schaeffler Technologies AG & Co. KG | Method for the surface modification of at least one component and reactor device for carrying out the method |
| CN117246710A (en) * | 2023-11-13 | 2023-12-19 | 宁波勋辉电器有限公司 | Feeding and discharging mechanism for passivation of display screen backboard |
| CN117246710B (en) * | 2023-11-13 | 2024-03-15 | 宁波勋辉电器有限公司 | Feeding and discharging mechanism for passivation of display screen backboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |