JPS5524738A - Method of casting sliding surface of valve - Google Patents

Method of casting sliding surface of valve

Info

Publication number
JPS5524738A
JPS5524738A JP9719678A JP9719678A JPS5524738A JP S5524738 A JPS5524738 A JP S5524738A JP 9719678 A JP9719678 A JP 9719678A JP 9719678 A JP9719678 A JP 9719678A JP S5524738 A JPS5524738 A JP S5524738A
Authority
JP
Japan
Prior art keywords
valve
casting
inner peripheral
nonferrous metal
sliding surface
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
JP9719678A
Other languages
Japanese (ja)
Inventor
Sanetsugu Onishi
Shunichi Kuwano
Kenji Iwasaki
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 Construction Machinery Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Construction Machinery Co Ltd
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 Construction Machinery Co Ltd, Hitachi Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP9719678A priority Critical patent/JPS5524738A/en
Publication of JPS5524738A publication Critical patent/JPS5524738A/en
Pending legal-status Critical Current

Links

Landscapes

  • Sliding Valves (AREA)

Abstract

PURPOSE: To form recessions and projections each having a suitable contour on the inner peripheral surface of each of iron valves, and thereafter pouring a molten nonferrous metal therein thereby to obtain a slide surface of casting faults and excellent in mechanical and physical properties.
CONSTITUTION: A recessed and projected part 1a having a suitable contour in the peripheral direction, such as a triangle or a semi-circle in cross section, is provided on the inner peripheral surface of an iron valve 1. Then, a molten nonferrous metal 2 is poured in the valve 1, and deposited. After hardening said valve, the inner part thereof is subjected to a cutting operation to make the valve have a predetermined thickness to form a slide surface 2a, whereby casting cracks are prevented and defects such as shrinkage cavities are eliminated.
COPYRIGHT: (C)1980,JPO&Japio
JP9719678A 1978-08-11 1978-08-11 Method of casting sliding surface of valve Pending JPS5524738A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9719678A JPS5524738A (en) 1978-08-11 1978-08-11 Method of casting sliding surface of valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9719678A JPS5524738A (en) 1978-08-11 1978-08-11 Method of casting sliding surface of valve

Publications (1)

Publication Number Publication Date
JPS5524738A true JPS5524738A (en) 1980-02-22

Family

ID=14185832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9719678A Pending JPS5524738A (en) 1978-08-11 1978-08-11 Method of casting sliding surface of valve

Country Status (1)

Country Link
JP (1) JPS5524738A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489952A (en) * 1980-02-29 1984-12-25 Eagle Industry Co., Ltd. Mechanical seal
US7226667B2 (en) * 2002-05-13 2007-06-05 Honda Giken Kogyo Kabushiki Kaisha Cast-iron insert and method of manufacturing same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489952A (en) * 1980-02-29 1984-12-25 Eagle Industry Co., Ltd. Mechanical seal
US7226667B2 (en) * 2002-05-13 2007-06-05 Honda Giken Kogyo Kabushiki Kaisha Cast-iron insert and method of manufacturing same

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