JPS6360617U - - Google Patents

Info

Publication number
JPS6360617U
JPS6360617U JP15511186U JP15511186U JPS6360617U JP S6360617 U JPS6360617 U JP S6360617U JP 15511186 U JP15511186 U JP 15511186U JP 15511186 U JP15511186 U JP 15511186U JP S6360617 U JPS6360617 U JP S6360617U
Authority
JP
Japan
Prior art keywords
valve
coating layer
utility
model registration
seat
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.)
Granted
Application number
JP15511186U
Other languages
English (en)
Other versions
JPH043778Y2 (ja
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 filed Critical
Priority to JP15511186U priority Critical patent/JPH043778Y2/ja
Publication of JPS6360617U publication Critical patent/JPS6360617U/ja
Application granted granted Critical
Publication of JPH043778Y2 publication Critical patent/JPH043778Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)

Description

【図面の簡単な説明】
第1図は逆流防止弁周辺の構造概要を示す断面
図である。 1……スクリユー、2……シート、3……リン
グバルブ、4……トピード型ヘツド、5……加熱
シリンダー、6……ノズル。

Claims (1)

  1. 【実用新案登録請求の範囲】 1 逆流防止弁付樹脂用スクリユー式射出成形機
    において、リングバルブとシートの表面に硬質被
    覆層を設けたことを特徴とする逆流防止弁。 2 実用新案登録請求の範囲第1項記載の逆流防
    止弁において、上記被覆層が元素周期律表の4a
    ,5a,6a族金属と珪素の炭化物、窒化物若し
    くは炭窒化物或は硬質炭素(含ダイヤモンド)等
    の物質より選ばれた少なくとも一種類の被覆層が
    一層又は多層に設けられていることを特徴とする
    逆流防止弁。
JP15511186U 1986-10-09 1986-10-09 Expired JPH043778Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15511186U JPH043778Y2 (ja) 1986-10-09 1986-10-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15511186U JPH043778Y2 (ja) 1986-10-09 1986-10-09

Publications (2)

Publication Number Publication Date
JPS6360617U true JPS6360617U (ja) 1988-04-22
JPH043778Y2 JPH043778Y2 (ja) 1992-02-05

Family

ID=31075520

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15511186U Expired JPH043778Y2 (ja) 1986-10-09 1986-10-09

Country Status (1)

Country Link
JP (1) JPH043778Y2 (ja)

Also Published As

Publication number Publication date
JPH043778Y2 (ja) 1992-02-05

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