JPH0381236U - - Google Patents

Info

Publication number
JPH0381236U
JPH0381236U JP14206189U JP14206189U JPH0381236U JP H0381236 U JPH0381236 U JP H0381236U JP 14206189 U JP14206189 U JP 14206189U JP 14206189 U JP14206189 U JP 14206189U JP H0381236 U JPH0381236 U JP H0381236U
Authority
JP
Japan
Prior art keywords
die
molding
engine valve
plug
thin film
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
JP14206189U
Other languages
English (en)
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 JP14206189U priority Critical patent/JPH0381236U/ja
Publication of JPH0381236U publication Critical patent/JPH0381236U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Chemical Vapour Deposition (AREA)
  • Forging (AREA)
  • Physical Vapour Deposition (AREA)

Description

【図面の簡単な説明】
第1図は、本考案の一実施例を示すダイの縦断
正面図、第2図は、従来のポンチ及びダイを用い
て、コツタを成形する要領を略示する斜視図、第
3図は、成形しようとするコツタの斜視図である
。 1……コツタ、2……外周面、3……内周面、
4……ビード、5……ポンチ、6……ダイ、7…
…帯鋼材、8……ダイ、8a……基材、8b……
厚肉部、8c……支持部、8d……成形部、8e
……成形面、9……窒化チタニユーム薄膜。

Claims (1)

  1. 【実用新案登録請求の範囲】 予め異形断面に成形した帯鋼材を、プレス加工
    することにより、外周面が截頭円錐形をなす半円
    筒形のエンジンバルブ用コツタを成形する際に用
    いられるダイであつて、 前記ダイを構成する基材における、少なくとも
    前記コツタの内周面と補形をなす成形面に、チタ
    ニユーム薄膜をコーテイングしたことを特徴とす
    るエンジンバルブ用コツタのプレス成形用ダイ。
JP14206189U 1989-12-11 1989-12-11 Pending JPH0381236U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14206189U JPH0381236U (ja) 1989-12-11 1989-12-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14206189U JPH0381236U (ja) 1989-12-11 1989-12-11

Publications (1)

Publication Number Publication Date
JPH0381236U true JPH0381236U (ja) 1991-08-20

Family

ID=31688912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14206189U Pending JPH0381236U (ja) 1989-12-11 1989-12-11

Country Status (1)

Country Link
JP (1) JPH0381236U (ja)

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