JPS5557700A - Rotary fluid machine - Google Patents
Rotary fluid machineInfo
- Publication number
- JPS5557700A JPS5557700A JP12854178A JP12854178A JPS5557700A JP S5557700 A JPS5557700 A JP S5557700A JP 12854178 A JP12854178 A JP 12854178A JP 12854178 A JP12854178 A JP 12854178A JP S5557700 A JPS5557700 A JP S5557700A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- chrome
- thick
- stainless steel
- treated
- 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
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To provide fluid rotary machines in which the smallest vibrations may be absorbed or the anti-vibration effect improved by forming a metal layer over at least 15% of the fluid contacting surfaces in the vibration-generaling portions.
CONSTITUTION: In the proposed fluid rotary machine, for example, a centrifugal pump usually made of cast steel and having a mouth of 150mm in diameter and a discharge volume of 2m3/min of fluids, about 80% of the fluid contacting surfaces within an inlet cover and a main case are treated with shot blasting to be roughtened. Thereupon, molten molybdenum material is applied over the roughened surfaces to form a layer 0.5mm thick as the primer. Overlaying the molybdenum layer another layer about 2.0mm thick of 13% chrome-stainless steel is similarly formed. It is evidently noticed that the pumps with the casings thus treated produce less vibrations and consequently reduce the occurrence of noises, compared to those consisting only and entirely of 13% chrome-stainless steel.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12854178A JPS5557700A (en) | 1978-10-20 | 1978-10-20 | Rotary fluid machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12854178A JPS5557700A (en) | 1978-10-20 | 1978-10-20 | Rotary fluid machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5557700A true JPS5557700A (en) | 1980-04-28 |
Family
ID=14987299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12854178A Pending JPS5557700A (en) | 1978-10-20 | 1978-10-20 | Rotary fluid machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5557700A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1213116A2 (en) * | 2000-12-05 | 2002-06-12 | Tokai Rubber Industries, Ltd. | Process for manufacturing soundproof cover |
-
1978
- 1978-10-20 JP JP12854178A patent/JPS5557700A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1213116A2 (en) * | 2000-12-05 | 2002-06-12 | Tokai Rubber Industries, Ltd. | Process for manufacturing soundproof cover |
EP1213116A3 (en) * | 2000-12-05 | 2003-03-05 | Tokai Rubber Industries, Ltd. | Process for manufacturing soundproof cover |
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