JPS5589903A - Head shell and its manufacture - Google Patents
Head shell and its manufactureInfo
- Publication number
- JPS5589903A JPS5589903A JP16122778A JP16122778A JPS5589903A JP S5589903 A JPS5589903 A JP S5589903A JP 16122778 A JP16122778 A JP 16122778A JP 16122778 A JP16122778 A JP 16122778A JP S5589903 A JPS5589903 A JP S5589903A
- Authority
- JP
- Japan
- Prior art keywords
- graphite powder
- resin
- head shell
- shell
- carbonization
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 5
- 239000011347 resin Substances 0.000 abstract 4
- 229920005989 resin Polymers 0.000 abstract 4
- 238000003763 carbonization Methods 0.000 abstract 3
- 238000004898 kneading Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 238000005245 sintering Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
Abstract
PURPOSE: To obtain the head shell light in weight and high in the rigidity and performance, by kneading resin and graphite powder in mixture, forming the shape with the material orientating the graphite powder and performing carbonization or graphiting.
CONSTITUTION: After heating and kneading in mixture for 30% of resin such as polyvinylchloride and 70% of graphite powder of scaly shape 20μ or less in average particle diameter, for example, the flat plate 3 in which the graphite powder 2 is oriented in the resin 3 in parallel with the flat 3 and the thickness is in matching with the thickness of the given head shell is made with rolling. This plate 3 is pressed to form the head shell 4. The graphite powder 2 is molded with oriented in resin as shown in the cross section of TV-TV, V-V. The temperature of the shell 4 is increased to 250°C under oxidized atmosphere and the shell 4 is carbonized at 1200°C under non-oxidized atmosphere or vacuum after preparatory sintering, or graphited with temperature to 2500°C further. Thus, the specific elasticity is greater several times than that of Al and Ti, and the rigidity is 4 times at carbonization than the preparatory sintering and further 1.5 times greater at graphiting than that after carbonization. Accordingly, the reproduction less in noise and good in audio quality can be made.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16122778A JPS5589903A (en) | 1978-12-28 | 1978-12-28 | Head shell and its manufacture |
| US06/063,532 US4269416A (en) | 1978-08-04 | 1979-08-03 | Head shell for record player tonearms |
| GB7927324A GB2037053B (en) | 1978-08-04 | 1979-08-06 | Head shell for record player tonearms |
| DE19792933434 DE2933434C2 (en) | 1978-08-18 | 1979-08-17 | Audio head housings for tonearms of record players and processes for the production of the audio head housings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16122778A JPS5589903A (en) | 1978-12-28 | 1978-12-28 | Head shell and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5589903A true JPS5589903A (en) | 1980-07-08 |
| JPS6114564B2 JPS6114564B2 (en) | 1986-04-19 |
Family
ID=15731038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16122778A Granted JPS5589903A (en) | 1978-08-04 | 1978-12-28 | Head shell and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5589903A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0159182U (en) * | 1987-10-09 | 1989-04-13 |
-
1978
- 1978-12-28 JP JP16122778A patent/JPS5589903A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6114564B2 (en) | 1986-04-19 |
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