JPS60258457A - Titanium alloy knockout pin - Google Patents
Titanium alloy knockout pinInfo
- Publication number
- JPS60258457A JPS60258457A JP11413184A JP11413184A JPS60258457A JP S60258457 A JPS60258457 A JP S60258457A JP 11413184 A JP11413184 A JP 11413184A JP 11413184 A JP11413184 A JP 11413184A JP S60258457 A JPS60258457 A JP S60258457A
- Authority
- JP
- Japan
- Prior art keywords
- knockout pin
- corrosion resistance
- alloy
- titanium alloy
- heat treatment
- 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
Links
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
のであり、とくに難燃性プラスチックの型成形装置用押
出ビ／に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates in particular to an extrusion molding device for flame-retardant plastic molding equipment.
プラスチック用押出ビンとしては、一般に、使用中折損
しないよう充分の強靭性を有すること、摺動面の耐摩耗
性の大きいこと、耐食性の良好なこと、使用中に寸法変
化を生じないことなどの性質が要求される。In general, extruded bottles for plastics must have sufficient toughness so as not to break during use, have high abrasion resistance on the sliding surface, have good corrosion resistance, and do not cause dimensional changes during use. nature is required.
従来、プラスチック用押出ピンとしては， ＳＫ８、：
２／、８ＫＤ／／などの高炭素工具鋼をＨＲＯ乙θ前後
の硬さに焼入・焼もどししたものが広く用いられてきた
が、プラスチックの用途が拡大され、難燃性プラスチッ
クが電気、電子機器用に使用されるようになって、これ
ら８に８ ２ ／、ＳＫＤ／／製押出ピンでは耐食性が
不足することが明らかとなった。Conventionally, the extrusion pin for plastics is SK8:
High carbon tool steels such as 2/, 8KD//, which have been quenched and tempered to a hardness of around HRO Otsu θ, have been widely used, but the uses of plastics have expanded, and flame-retardant plastics are being used in electrical, electrical, electrical, etc. When these pins were used for electronic devices, it became clear that the extruded pins made by 8 2 / and SKD // lacked corrosion resistance.
難燃性プラスチックは、従来のプラスチックにハロゲン
化合物を生体とする難燃剤を添加しているため、射出成
形時に塩素ガスなどのハロゲン系腐食ガスを発生し、押
出ピンを腐食させるという問題を生ずるようになった。Flame-retardant plastics are made by adding a flame retardant based on a halogen compound to conventional plastics, which can cause problems such as halogen-based corrosive gases such as chlorine gas being generated during injection molding and corroding the extrusion pins. Became.
腐食対策として、ＳＵＳグ２θＪ、２、Ｓ ’Ｕ Ｓグ
グθＣなどのマルテンサイト系ステンレス鋼を焼入・焼
もどしして、ＨＲ０４’に〜Ｓｊの硬さに調質した押出
ピンが用いられているが、耐食性が完全ではなく、ピッ
ト状の腐食が発生するので、充分な対策とはいえない。As a countermeasure against corrosion, extruded pins made of martensitic stainless steel such as SUS 2θJ, 2, and S'US GUGS θC are quenched and tempered to a hardness of ~Sj for HR04'. However, the corrosion resistance is not perfect and pit-like corrosion occurs, so it is not a sufficient countermeasure.
本発明は、これらの問題に鑑みてなされたものであシ、
従来の押出ピンよシも耐食性が優れておシ、耐摩耗性も
良好でちり、難燃性プラスチック用として使用できる押
出ピンを提供することを目的とするものである。The present invention has been made in view of these problems.
The object of the present invention is to provide an extrusion pin that has excellent corrosion resistance and wear resistance compared to conventional extrusion pins, and can be used for dust and flame retardant plastics.
すなわち、本発明は、重量％でＣθ／θチ以下、Ａｎ！
ｊ−／、７ｊ％、Ｖ３！ 〜Ｑｊ％、ＦｅθＦ％以下、
残部Ｔｉおよび若干の不純物よシなる合金の棒材を、と
５０〜９５９℃から油冷または水冷の溶体化処理をほど
こしたのち加工し、ひきつづきｊθθ〜ｊ５θ℃で時効
処理をして、ＨＲＯｆθ以上に析出硬化させたことを特
徴とする耐食性の優れたチタン合金製押出ピンであシ、
ハロゲン系腐食ガスにたいする耐食性が著しく優れてい
る。That is, in the present invention, Cθ/θ is less than or equal to An! in weight%.
j-/, 7j%, V3! ~Qj%, FeθF% or less,
An alloy bar with the remaining Ti and some impurities is processed after being subjected to oil-cooling or water-cooling solution treatment from 50 to 959 degrees Celsius, followed by aging treatment at jθθ to j5θ℃ to obtain HROfθ or higher. Extruded pin made of titanium alloy with excellent corrosion resistance, characterized by precipitation hardening.
Excellent corrosion resistance against halogen-based corrosive gases.
次に、本発明押出ピンの組成限定理由を述べる。Next, the reasons for limiting the composition of the extrusion pin of the present invention will be described.
Ｃは■と炭化物を形成し、靭性を低下するので、θ／θ
チ以下に限定した。Ｆｅもまた、θグθチをこえると加
工性ならびに靭性を低下するので、θグθチ以下に限定
した。Ａλおよび■は、チタンのβ固溶体中へのα固溶
体の溶解度を大きくし、溶体化処理後の時効硬化処理に
際してのα粒子の析出硬化を増大させる効果を有するが
、八βおよび■がそれぞれｉｊ、％および３５％未満で
は析出硬化が不十分であシ、また、Ａ２および■がそれ
ぞれ＆７’５％およびＱ５％ｉこえると靭性全低下する
ので、Ａ２はぶ５〜６７５％に、またＶは３ｊ−グｊチ
に限定した。C forms carbides with ■ and reduces toughness, so θ/θ
Limited to less than 1. Fe also decreases workability and toughness when it exceeds θ, so it was limited to less than θ. Aλ and ■ have the effect of increasing the solubility of the α solid solution in the β solid solution of titanium and increasing the precipitation hardening of α particles during the age hardening treatment after solution treatment, but , % and 35%, precipitation hardening is insufficient, and if A2 and was limited to 3j-gujchi.
次に、本発明を実施例によって具体的に説明する。第１
表は本発明に係る押出ピン（記号Ａ）と従来製押出ピン
（記号Ｂ％Ｃ）の化学組成を示す。Next, the present invention will be specifically explained using examples. 1st
The table shows the chemical composition of the extrusion pin according to the present invention (symbol A) and the conventional extrusion pin (symbol B%C).
第２表は、押出ピンの熱処理硬さ、ならびに耐食性をＡ
％Ｂ及びＣの押出ピンについて比較したものである。記
号人は、２００℃油冷の溶体化処理後ｊ２θ℃ＸＱｈ（
時間）の時効硬化処理をほどこしたもので、ＨＲＯ＜ｉ
ｑの硬さを示した。Table 2 shows the heat treatment hardness and corrosion resistance of the extrusion pin.
%B and C extrusion pins are compared. The symbol is j2θ℃XQh(
HRO < i
It showed a hardness of q.
これらのビンの耐食性の比較を行なうため、押出ピンと
同じ条件で製作したφ乙岨×ｊθ祁試片を用いて腐食試
験を行なった。即ち、２５℃の５％Ｈ２ＳＯ４水溶液お
よびＳ％ＨＣ２水溶液中に試片を浸漬させて腐食減量を
測定した。この結果は、第２表に示すが、本発明に係る
ビン（Ａ）は、記号ＢおよびＣで示される従来の押出ピ
ンよシも、著しく優れた耐食性を示した。In order to compare the corrosion resistance of these bottles, a corrosion test was conducted using a φ Etsu x j θ Q specimen manufactured under the same conditions as the extrusion pin. That is, the specimen was immersed in a 5% H2SO4 aqueous solution and a S% HC2 aqueous solution at 25° C., and the corrosion loss was measured. The results are shown in Table 2, and the bottle (A) according to the present invention showed significantly superior corrosion resistance compared to the conventional extruded pins indicated by symbols B and C.
第１表 化学成分
第２表 熱処理硬さおよび腐食試験結果以上説明した如
く、本発明は、Ｃθ／θ−以下、ＡＱ４ｊ−ｔ！、７ｊ
％、ｖＪｊ 〜’Ａ６％、ＦｅθＱ％以下、残部Ｔｉお
よび若干の不純物よシなる合金の棒材を、ｇｊθ〜２５
０℃から溶体化処理したのち、所定の形状に加工し、つ
いで５００〜５３０℃で時効処理をほどこしＨｖｔ’
Ｏ’ ４１０以上に析出硬化させたものであり、塩酸な
らびに硫酸に対する耐食性が非常に良好であるので、難
燃性プラスチック用押出ピンとして好適である。Table 1 Chemical composition Table 2 Heat treatment hardness and corrosion test results As explained above, the present invention has Cθ/θ- or less, AQ4j-t! ,7j
%, vJj ~'A6%, FeθQ% or less, balance Ti and some impurities, gjθ ~ 25
After solution treatment from 0℃, processing into a specified shape, and then aging treatment at 500 to 530℃ to obtain Hvt'
It is precipitation hardened to O' 410 or higher and has very good corrosion resistance against hydrochloric acid and sulfuric acid, making it suitable as an extrusion pin for flame-retardant plastics.
Claims (1)
’Ｌ、Ｓ ％、 Ｆｅ （２グー以下、残部Ｔｉおよび
若干の不純物よシなる合金の棒材を、と５０〜９５０℃
から油冷または水冷の溶体化処理をほどこしたのち加工
し、ひきつづきｊθθ〜３．５θ℃で時効処理をして、
ＨＲＯ＆θ以上に析出硬化させたことを特徴とする耐食
性の優れたチタン合金製押出ピン。Cθ/θchi or less in weight%, Bjj~mu7jchi, VJj-
' L, S %, Fe (less than 2 gou, balance Ti and some impurities), and the bar material of the alloy is heated at 50 to 950℃.
After being subjected to oil-cooling or water-cooling solution treatment, it is processed, followed by aging treatment at jθθ~3.5θ℃,
An extruded titanium alloy pin with excellent corrosion resistance that is precipitation hardened to HRO&θ or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11413184A JPS60258457A (en) | 1984-06-04 | 1984-06-04 | Titanium alloy knockout pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11413184A JPS60258457A (en) | 1984-06-04 | 1984-06-04 | Titanium alloy knockout pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60258457A true JPS60258457A (en) | 1985-12-20 |
| JPS62227B2 JPS62227B2 (en) | 1987-01-06 |
Family
ID=14629908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11413184A Granted JPS60258457A (en) | 1984-06-04 | 1984-06-04 | Titanium alloy knockout pin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60258457A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5759484A (en) * | 1994-11-29 | 1998-06-02 | Director General Of The Technical Research And Developent Institute, Japan Defense Agency | High strength and high ductility titanium alloy |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01170337U (en) * | 1988-05-17 | 1989-12-01 |
-
1984
- 1984-06-04 JP JP11413184A patent/JPS60258457A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5759484A (en) * | 1994-11-29 | 1998-06-02 | Director General Of The Technical Research And Developent Institute, Japan Defense Agency | High strength and high ductility titanium alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62227B2 (en) | 1987-01-06 |
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