JPS6411809A - Production method of frp valve box or valve body - Google Patents

Production method of frp valve box or valve body

Info

Publication number
JPS6411809A
JPS6411809A JP16827187A JP16827187A JPS6411809A JP S6411809 A JPS6411809 A JP S6411809A JP 16827187 A JP16827187 A JP 16827187A JP 16827187 A JP16827187 A JP 16827187A JP S6411809 A JPS6411809 A JP S6411809A
Authority
JP
Japan
Prior art keywords
valve
mold
tube
valve body
frp
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
JP16827187A
Other languages
Japanese (ja)
Inventor
Koichiro Kakehashi
Takashi Onari
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP16827187A priority Critical patent/JPS6411809A/en
Publication of JPS6411809A publication Critical patent/JPS6411809A/en
Pending legal-status Critical Current

Links

Landscapes

  • Valve Housings (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To reduce the lowering of strength at the insertion hole portion of a valve stem by a method wherein a FRP tube is externally fitted onto a bar- like mold for forming the valve stem insertion hole before the pressure-filling of SMC so as to insert-mold the tube in a molded valve box or valve body. CONSTITUTION:An FRP tube 2 is externally fitted onto a bar-like mold 1A. SMC's 3 are laminated to the side of the bar-like mold 1A, onto which the tube 2 is fitted externally, so as to fill SMC's 3 in the space V at the periphery of the bar-like mold 1A under pressure. At this time, the tube 2 is inserted in a molded valve box or valve body so as to be made into an integral body with the valve box or valve body. By releasing the mold 1, the valve box or valve body having the valve stem insertion hole, the strength of which is high since the FRP tube 2 is located on the inner peripheral part of the hole.
JP16827187A 1987-07-06 1987-07-06 Production method of frp valve box or valve body Pending JPS6411809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16827187A JPS6411809A (en) 1987-07-06 1987-07-06 Production method of frp valve box or valve body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16827187A JPS6411809A (en) 1987-07-06 1987-07-06 Production method of frp valve box or valve body

Publications (1)

Publication Number Publication Date
JPS6411809A true JPS6411809A (en) 1989-01-17

Family

ID=15864925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16827187A Pending JPS6411809A (en) 1987-07-06 1987-07-06 Production method of frp valve box or valve body

Country Status (1)

Country Link
JP (1) JPS6411809A (en)

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