JPS57114656A - External part for portable watch and its production - Google Patents
External part for portable watch and its productionInfo
- Publication number
- JPS57114656A JPS57114656A JP18816080A JP18816080A JPS57114656A JP S57114656 A JPS57114656 A JP S57114656A JP 18816080 A JP18816080 A JP 18816080A JP 18816080 A JP18816080 A JP 18816080A JP S57114656 A JPS57114656 A JP S57114656A
- Authority
- JP
- Japan
- Prior art keywords
- parts
- alloy layer
- porous
- polymer
- abrasion resistance
- 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.)
- Pending
Links
Landscapes
- Chemically Coating (AREA)
Abstract
PURPOSE: To produce titled parts of superior abrasion resistance and durability by forming a porous Ni-P alloy layer on the surfaces of the external parts for portable watches, and melt sticking and joining flourohydrocarbon polymer on the alloy layer.
CONSTITUTION: External parts for portable watches are immersed in an electroless Ni plating bath using hypophosphorous acid as a reducing agent, whereby a porous Ni-P alloy layer contg. 5W15% P on the surfaces of the parts. Next, the surfaces of said porous Ni-P alloy layer are impregnated with an aq. dispersion of a fluorohydrocarbon polymer of ≤2μ particle sizes, after which a heat treatment is applied. According to this method, the hard and porous Ni-P alloy layer and the transparent film of the fluorohydocarbon polymer melt stuck and joined thereto are obtained on the surfaces of the parts. In this way, the higher abrasion resistance of the external parts, the less friction of their sliding parts and higher durability and quality are achieved.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18816080A JPS57114656A (en) | 1980-12-30 | 1980-12-30 | External part for portable watch and its production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18816080A JPS57114656A (en) | 1980-12-30 | 1980-12-30 | External part for portable watch and its production |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57114656A true JPS57114656A (en) | 1982-07-16 |
Family
ID=16218799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18816080A Pending JPS57114656A (en) | 1980-12-30 | 1980-12-30 | External part for portable watch and its production |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57114656A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107523815A (en) * | 2017-07-11 | 2017-12-29 | 长安大学 | A kind of three-dimensional porous foams nickel and preparation method thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS496019A (en) * | 1972-04-21 | 1974-01-19 |
-
1980
- 1980-12-30 JP JP18816080A patent/JPS57114656A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS496019A (en) * | 1972-04-21 | 1974-01-19 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107523815A (en) * | 2017-07-11 | 2017-12-29 | 长安大学 | A kind of three-dimensional porous foams nickel and preparation method thereof |
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