JPH0475167B2 - - Google Patents
Info
- Publication number
- JPH0475167B2 JPH0475167B2 JP4672385A JP4672385A JPH0475167B2 JP H0475167 B2 JPH0475167 B2 JP H0475167B2 JP 4672385 A JP4672385 A JP 4672385A JP 4672385 A JP4672385 A JP 4672385A JP H0475167 B2 JPH0475167 B2 JP H0475167B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- radio wave
- density
- ferrite
- wave absorber
- 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
- 239000000843 powder Substances 0.000 claims description 80
- 239000002245 particle Substances 0.000 claims description 42
- 229910000859 α-Fe Inorganic materials 0.000 claims description 37
- 239000006096 absorbing agent Substances 0.000 claims description 35
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 30
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 239000011701 zinc Substances 0.000 description 29
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 14
- 238000010521 absorption reaction Methods 0.000 description 11
- 238000010304 firing Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000010298 pulverizing process Methods 0.000 description 9
- 239000000654 additive Substances 0.000 description 8
- 238000000465 moulding Methods 0.000 description 7
- 239000011787 zinc oxide Substances 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920006328 Styrofoam Polymers 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
Landscapes
- Compounds Of Iron (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Aerials With Secondary Devices (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4672385A JPS61205627A (ja) | 1985-03-09 | 1985-03-09 | 電波吸収体材料用粉末の製造法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4672385A JPS61205627A (ja) | 1985-03-09 | 1985-03-09 | 電波吸収体材料用粉末の製造法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61205627A JPS61205627A (ja) | 1986-09-11 |
| JPH0475167B2 true JPH0475167B2 (enrdf_load_stackoverflow) | 1992-11-30 |
Family
ID=12755257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4672385A Granted JPS61205627A (ja) | 1985-03-09 | 1985-03-09 | 電波吸収体材料用粉末の製造法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61205627A (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0374795B1 (en) * | 1988-12-19 | 1995-10-18 | Matsushita Electric Industrial Co., Ltd. | Radio wave absorbing material |
| JP2713483B2 (ja) * | 1989-12-29 | 1998-02-16 | 新日本製鐵株式会社 | Ｔｖ周波数帯域用電波吸収体 |
| JP5549063B2 (ja) * | 2007-08-31 | 2014-07-16 | 日立金属株式会社 | フェライト材料及びフェライト材料の製造方法 |
-
1985
- 1985-03-09 JP JP4672385A patent/JPS61205627A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61205627A (ja) | 1986-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |