JPS5243711A - Sound absorbing material and its unit having excellent weather resista nce, pressure resisting strength and heat resistance - Google Patents
Sound absorbing material and its unit having excellent weather resista nce, pressure resisting strength and heat resistanceInfo
- Publication number
- JPS5243711A JPS5243711A JP50119424A JP11942475A JPS5243711A JP S5243711 A JPS5243711 A JP S5243711A JP 50119424 A JP50119424 A JP 50119424A JP 11942475 A JP11942475 A JP 11942475A JP S5243711 A JPS5243711 A JP S5243711A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- absorbing material
- sound absorbing
- heat resistance
- pressure resisting
- 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
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Building Environments (AREA)
- Powder Metallurgy (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
PURPOSE: To develop a sound absorbing material and its unit having excellent pressure resisting strength against wind pressure, etc., weather resistance and incombustibility which can sufficiently absorb noise generated from engines of high speed trains and cars.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50119424A JPS5243711A (en) | 1975-10-03 | 1975-10-03 | Sound absorbing material and its unit having excellent weather resista nce, pressure resisting strength and heat resistance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50119424A JPS5243711A (en) | 1975-10-03 | 1975-10-03 | Sound absorbing material and its unit having excellent weather resista nce, pressure resisting strength and heat resistance |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5243711A true JPS5243711A (en) | 1977-04-06 |
Family
ID=14761100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50119424A Pending JPS5243711A (en) | 1975-10-03 | 1975-10-03 | Sound absorbing material and its unit having excellent weather resista nce, pressure resisting strength and heat resistance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5243711A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5390113A (en) * | 1977-01-20 | 1978-08-08 | Nippon Dia Clevite Co | Porous sintered material with excellent air permeability |
JPS5458401A (en) * | 1977-10-19 | 1979-05-11 | Japan National Railway | Sound absorbing plate structure having superior weather resistance and mechanical strength with preferable drainage |
JPS5466504U (en) * | 1977-10-19 | 1979-05-11 | ||
JPS54109009A (en) * | 1978-02-15 | 1979-08-27 | Kouichi Suematsu | Granule iron ingot having fused contact portions |
JPS558477A (en) * | 1978-07-05 | 1980-01-22 | N D C Kk | Production of porous body of aluminum or its alloy |
JPS57202281U (en) * | 1981-06-19 | 1982-12-23 | ||
JPS6168108U (en) * | 1985-08-15 | 1986-05-10 | ||
JPS61140138U (en) * | 1985-02-22 | 1986-08-30 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2444620A (en) * | 1944-06-23 | 1948-07-06 | Brush Dev Co | Damping means for mechanical vibratory devices |
JPS4825854A (en) * | 1971-08-10 | 1973-04-04 | ||
JPS4945832B1 (en) * | 1968-01-19 | 1974-12-06 | ||
JPS5091505A (en) * | 1973-12-14 | 1975-07-22 |
-
1975
- 1975-10-03 JP JP50119424A patent/JPS5243711A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2444620A (en) * | 1944-06-23 | 1948-07-06 | Brush Dev Co | Damping means for mechanical vibratory devices |
JPS4945832B1 (en) * | 1968-01-19 | 1974-12-06 | ||
JPS4825854A (en) * | 1971-08-10 | 1973-04-04 | ||
JPS5091505A (en) * | 1973-12-14 | 1975-07-22 |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5390113A (en) * | 1977-01-20 | 1978-08-08 | Nippon Dia Clevite Co | Porous sintered material with excellent air permeability |
JPS5618646B2 (en) * | 1977-01-20 | 1981-04-30 | ||
JPS5822239Y2 (en) * | 1977-10-19 | 1983-05-12 | 日本国有鉄道 | Sound-absorbing wall unit with excellent sound-absorbing properties and extremely good drainage |
JPS5458401A (en) * | 1977-10-19 | 1979-05-11 | Japan National Railway | Sound absorbing plate structure having superior weather resistance and mechanical strength with preferable drainage |
JPS5466504U (en) * | 1977-10-19 | 1979-05-11 | ||
JPS5825280B2 (en) * | 1977-10-19 | 1983-05-26 | 日本国有鉄道 | Sound-absorbing board structure with excellent weather resistance and mechanical strength, and good drainage |
JPS54109009A (en) * | 1978-02-15 | 1979-08-27 | Kouichi Suematsu | Granule iron ingot having fused contact portions |
JPS5620324B2 (en) * | 1978-07-05 | 1981-05-13 | ||
JPS558477A (en) * | 1978-07-05 | 1980-01-22 | N D C Kk | Production of porous body of aluminum or its alloy |
JPS57202281U (en) * | 1981-06-19 | 1982-12-23 | ||
JPS61140138U (en) * | 1985-02-22 | 1986-08-30 | ||
JPS6168108U (en) * | 1985-08-15 | 1986-05-10 | ||
JPH0312810Y2 (en) * | 1985-08-15 | 1991-03-26 |
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