JPS5680565A - Valve plate for automatic valve - Google Patents

Valve plate for automatic valve

Info

Publication number
JPS5680565A
JPS5680565A JP15802979A JP15802979A JPS5680565A JP S5680565 A JPS5680565 A JP S5680565A JP 15802979 A JP15802979 A JP 15802979A JP 15802979 A JP15802979 A JP 15802979A JP S5680565 A JPS5680565 A JP S5680565A
Authority
JP
Japan
Prior art keywords
valve plate
hardness
valve
life
corrosive
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
Application number
JP15802979A
Other languages
Japanese (ja)
Inventor
Keiichiro Noda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15802979A priority Critical patent/JPS5680565A/en
Publication of JPS5680565A publication Critical patent/JPS5680565A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable prevention of the wear of a valve plate even in a corrosive atmospheric condition, by applying heat treatment to the valve palte for an automatic valve used in a reciprocating compressor to the specific shore hardness and processing nitridation treatment to the surface of said valve plate.
CONSTITUTION: A valve plate 5 shall be polished, after heat treatment to hardness in Shore hardness of HS35W47 and nitridation treatment to its surface. The relation between hardness and life of the valve plate in a corrosive atmospheric condition is as shown in the drawing. For instance, for low hardness the scattering of life of the valve plate is not present, but for high hardness the wide scattering is produced according to the kind and quantity of a corrosion factor in a corrosive atmosphere C, in comparison with the case of a clean atmosphere B. Life of the valve plate is about 3,000hr even if its hardness is lowered to HS40 in a corrosive atmosphere, but prolonged to about four times when the surface is softly nitrided.
COPYRIGHT: (C)1981,JPO&Japio
JP15802979A 1979-12-07 1979-12-07 Valve plate for automatic valve Pending JPS5680565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15802979A JPS5680565A (en) 1979-12-07 1979-12-07 Valve plate for automatic valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15802979A JPS5680565A (en) 1979-12-07 1979-12-07 Valve plate for automatic valve

Publications (1)

Publication Number Publication Date
JPS5680565A true JPS5680565A (en) 1981-07-01

Family

ID=15662710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15802979A Pending JPS5680565A (en) 1979-12-07 1979-12-07 Valve plate for automatic valve

Country Status (1)

Country Link
JP (1) JPS5680565A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5857839A (en) * 1993-08-10 1999-01-12 Sanden Corporation Compressor having noise and vibration reducing reed valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5857839A (en) * 1993-08-10 1999-01-12 Sanden Corporation Compressor having noise and vibration reducing reed valve

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