JPS6063355A - Nonmagnetic pin for extruding plastic - Google Patents
Nonmagnetic pin for extruding plasticInfo
- Publication number
- JPS6063355A JPS6063355A JP58172644A JP17264483A JPS6063355A JP S6063355 A JPS6063355 A JP S6063355A JP 58172644 A JP58172644 A JP 58172644A JP 17264483 A JP17264483 A JP 17264483A JP S6063355 A JPS6063355 A JP S6063355A
- Authority
- JP
- Japan
- Prior art keywords
- hardness
- magnetic
- pin
- prescribed
- wear resistance
- 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
- Moulds For Moulding Plastics Or The Like (AREA)
- Hard Magnetic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、粉末状のフェライト・マグネッ１〜を添加し
たプラスデックの成形に用いられる非磁性押出ピンに関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a non-magnetic extrusion pin used for molding a plus deck to which powdered ferrite magnets 1 to 1 are added.
フエライ１〜・マグネットの粉末を添加したプラスデッ
ク、いわゆるブラマグは磁石となっているため、これに
使用される成形金型および押出ピンは非磁性で高硬度の
ものが要求される。すなわち、非磁性押出ピンとしては
、使用中変形や折損の生じないよう充分な強度を右する
こと、摺動面の耐摩耗性の大ぎいこと、耐焼イ」性の良
好なこと、長時間使用中に寸法変化を生じないことのほ
かに、透磁率が１．０１以下の完全非磁性であることが
要求される。Since PLUSDEC, so-called BRAMAG, to which magnetic powder is added is a magnet, the molding die and extrusion pin used therein are required to be non-magnetic and highly hard. In other words, non-magnetic extruded pins must have sufficient strength to avoid deformation or breakage during use, have high abrasion resistance on the sliding surface, have good resistance to burning, and must be used for long periods of time. In addition to not causing any dimensional change inside the material, it is also required to be completely non-magnetic with a magnetic permeability of 1.01 or less.
非磁性押出ピンとしては、従来、５ＵＳ３０４を冷間引
抜によって硬ざをＨＲＣ３０〜３５に高めたものが用い
られているが、５ＵＳ３０４は冷間加工によって、オー
ステナイトが一部マルチンサイトに変態するため完全非
磁性ではなく、透磁率は１．３〜１．５と大きくなるた
め、マグネツトにある程度吸引される結果となり、作業
に支障をきたづ欠点がある。またＳ Ｕ Ｓ ３０ ／
ｌ 製押出ピンは硬さが１１［マＧ３０〜３５と低いた
め、使用中に曲りを生じたり、早期に厚耗したりりる欠
点もある。Conventionally, non-magnetic extruded pins are made of 5US304, which has been cold-drawn to increase the hardness to HRC30-35. Since it is not non-magnetic and has a high magnetic permeability of 1.3 to 1.5, it is attracted to the magnet to some extent, which has the disadvantage of complicating work. Also SUS 30/
The hardness of extruded pins made from aluminum is as low as 11 [G30 to 35], so they have the disadvantage of bending during use and premature wear.
本発明は、これらの問題に鑑みてなされたものであり、
透磁率１．０１以下の完全非磁性であって、しかも５Ｕ
Ｓ３０４製押出ピンよりも硬さが高く、耐摩耗性が＋９
れており、ブラマグ用に適した押出ピンを提供すること
を目的とり−るものである。The present invention was made in view of these problems, and
Completely non-magnetic with magnetic permeability of 1.01 or less, and 5U
Harder than S304 extruded pin, wear resistance +9
The purpose of this invention is to provide an extrusion pin suitable for use in Bramag.
ずなわら、本発明はｍｍ％で、Ｃ０１４〜０．７％、３
ｉ ０．１〜２．０％、Ｍ ｎ １０，０〜１８．０
％、Ｃｒ１０゜０〜１５．０％、■１．５〜３．０％、
残部鉄及び若干の−）：種物からなる鋼の棒材を、溶体
化処理状態で加■して所定の形状にした後、７５０℃前
後で時効処理を行なってＨ’Ｐ Ｃ４５前後の硬さに析
出硬化させたことを特徴とするプラスデック用非磁性押
出ビンである。而して溶体化処理は約１１５０°Ｃに加
熱急冷して行ない、Ｈｐ ０２０前後に軟化した棒材を
加工して所定の形状にしたのら、７００〜７５０ ’Ｃ
で２〜６時間（１１）時効処理してｌ−Ｉ ＰＣ４５前
後の硬さに析出硬化させたものであり、当透磁率は１．
０１の完全非磁性で、また硬さもＨＲＣ４５と高いため
、Ｓ ｔＪ Ｓ ３０４製押出ビンよりも透磁率ならび
に耐摩耗性が著しく優れている。したがって本発明は、
プラマグ用非磁性押出ビンとして好適のものである。However, the present invention is mm%, C014~0.7%, 3
i 0.1~2.0%, Mn 10.0~18.0
%, Cr10゜0~15.0%, ■1.5~3.0%,
Remaining iron and some -): A steel bar consisting of seed material is solution-treated and shaped into a specified shape, and then aged at around 750℃ to give it a hardness of around H'P C45. This is a non-magnetic extruded bottle for Plus Deck, which is characterized by precipitation hardening. Solution treatment is carried out by heating and rapidly cooling to approximately 1150°C, and after processing the softened bar material to a Hp of around 020 and shaping it into the desired shape, it is heated to 700 to 750°C.
It is aged for 2 to 6 hours (11) and precipitation hardened to a hardness of around l-I PC45, and its magnetic permeability is 1.
Since it is completely non-magnetic as 01 and has a high hardness of HRC45, it has significantly better magnetic permeability and wear resistance than extruded bottles made of S tJ S 304. Therefore, the present invention
It is suitable as a non-magnetic extrusion bottle for plastic mags.
次に、本発明押出ビンの組成限定理由を述べる。Next, the reasons for limiting the composition of the extrusion bottle of the present invention will be described.
Ｃはｃｒ 、ｖなどと炭化物を形成するとどもに、Δ−
ステナイｊ〜中に固溶して強度を高くザるが、Ｃが０．
４％未満では、オース７ナイトが不安定となり、強度も
不足し、また０、７％をこえると靭性が低下する。Ｓｌ
は脱酸剤として添加づるが、０．１％未満ではその効果
少なく、また２ 、＋１ ％をこえると靭性が低下する
ので０．１〜２，０％とした。Ｍｎはオースデナイ１〜
を安定にするために添加覆るが、１０．０％未満ではオ
ーステナイト絹械が不安定となり、また１８．０％をこ
えると靭性４丁らびに耐酸化性を低下するので１０．０
〜１８．０％とした。Ｃｒは、Ａ−ステナイトの強１哀
を高め、また耐酸化１（１を向上するのに有効であるが
Ｏｒが１０．０％未満ではその効果が不十分であり、ま
た１５％をこえると靭性を低下りるので１０．０〜１５
．０％どした。■は結晶粒を微細化して靭性を向上する
とともに■炭化物の析出効果を生じて強度を高めるのに
有効であるが、■が１．５％未満ではその効果少なく、
また３、０％をこえると靭性を古びるので１．５〜３．
０％としたものである。C forms carbides with cr, v, etc., and Δ-
Stainless steel is dissolved in solid solution to increase strength, but C is 0.
If it is less than 4%, aus7ite becomes unstable and the strength is insufficient, and if it exceeds 0.7%, the toughness decreases. Sl
is added as a deoxidizing agent, but if it is less than 0.1%, its effect will be small, and if it exceeds 2.+1%, the toughness will decrease, so the content was set at 0.1 to 2.0%. Mn is Ausdenai 1~
However, if it is less than 10.0%, the austenite silk will become unstable, and if it exceeds 18.0%, the toughness and oxidation resistance will decrease.
~18.0%. Cr is effective in increasing the strength of A-stenite and improving the oxidation resistance (1), but the effect is insufficient when Or is less than 10.0%, and when it exceeds 15%. 10.0 to 15 as it reduces toughness.
．． 0% What happened? ■ is effective in improving toughness by refining crystal grains and increasing strength by causing precipitation of carbides; however, if ■ is less than 1.5%, the effect is small;
Also, if it exceeds 3.0%, the toughness will deteriorate, so it should be 1.5 to 3.
It is set as 0%.
以下、本発明の効果を実施例によって説明する。Hereinafter, the effects of the present invention will be explained using examples.
第１表は、本発明押出ビンと従来製５ＵＳ３０４押出ピ
ンの化学組成を示゛す。表中、記号Ａは本発明押出ビン
、記号Ｂは５ＵＳ３０４製押出ビンを示す。第２表は押
出ピンにほどこした熱処理ならびに熱処理硬さおＪ：び
透磁率を測定した結果を示づ。本発明押出ピンは、溶体
化処理どしては１１５０℃空冷がほどこされてＪ３す、
この状態で所定の形状に加工した後、７５０℃ｘ３１＋
（時間）時効処理をほどこすと硬さはｌ−１ｐ Ｃ４６
に硬化１゛る。一方、記号Ｂの５ＵＳ３０／Ｉ製押出ピ
ンは、溶体化処理としては、１０５０℃空冷が【Ｊ：ど
こされてＪ５す、これを３０％冷間引１反加■すること
によつ−Ｃ加工硬化づるが硬ざはＨｎ Ｃ３３、５であ
った。また透磁率は、本発明合金４．ｌ１１．０１であ
り、完全非磁１η−を示したが、記５づ［３は冷間加■
によってＡ−スデナイ１〜の一部がマルテンサイトに変
態り−るため、透磁率は１．３５ど大きくなり、ある程
瓜、磁石に吸引される結果とｈ−、）だ。Table 1 shows the chemical composition of the extrusion bottle of the present invention and the conventional 5US304 extrusion pin. In the table, symbol A indicates an extrusion bottle of the present invention, and symbol B indicates an extrusion bottle made of 5US304. Table 2 shows the heat treatment applied to the extrusion pin and the results of measuring the heat treatment hardness, J: and magnetic permeability. The extrusion pin of the present invention has been subjected to solution treatment and air cooling at 1150°C.
After processing into the specified shape in this state, 750℃ x 31+
(hours) After aging, the hardness is l-1p C46
There is 1 degree of hardening. On the other hand, for the extrusion pin made of 5US30/I with symbol B, air cooling at 1050°C is performed as a solution treatment, and by adding one reaction of 30% cold thinning to -C. The work hardening strength was Hn C33.5. The magnetic permeability of the alloy of the present invention is 4. l11.01 and showed completely non-magnetic 1η-.
As a result, a part of A-Sdenai1~ is transformed into martensite, so the magnetic permeability increases by 1.35, which is the result of being attracted to the magnet to some extent.
第１表 化学成分（チ）
第２表 熱処理硬さおよび透磁率
第３表 摩耗試験結果
第４表 シトルビー衝撃試験結果
第３表は、第２表に示した前処１ｊｌをほどこした試験
片を用い、ＳＣＭ４．２０焼なまし材を相手材として、
大越式摩耗試験機により、最終荷車６゜５ ｋｇ、１情
擦速Ｉｆｆ １ 、５ｍ ／ｓｅｃ 、１情擦距離４０
０ｍの場合の耐摩耗性の比較を行なった結果で記号へは
記号Ｂよりも著しく耐摩耗性が（つれていることを示す
。Table 1 Chemical composition (H) Table 2 Heat treatment hardness and magnetic permeability Table 3 Wear test results Table 4 Sittleby impact test results Table 3 shows the test pieces subjected to the pretreatment of 1 jl shown in Table 2. using SCM4.20 annealed material as the mating material,
Using the Ohkoshi type abrasion tester, the final cart weighed 6°5 kg, the friction speed per cycle Iff 1, 5 m/sec, and the friction distance per cycle 40.
The results of comparing the abrasion resistance in the case of 0 m indicate that the abrasion resistance of the symbol B is significantly lower than that of the symbol B.
また第４表は、第２表に示した熱処理をほどこした試片
を用いて、シトルビー衝撃試験を行なった結果であり、
記号Ａはシ１フルピー衝撃値３．５ｋｇ ｎｌ ／ ｃ
ｕｔを示してＪ３す、靭性が良ｊｌｒ ｒあることがわ
かる。Table 4 shows the results of a Sittleby impact test using the heat-treated specimens shown in Table 2.
Symbol A is 1 Shuffle Rupee Impact Value 3.5kg nl/c
It can be seen that the toughness of J3 is good.
つさ゛に、第２表に承り熱処理をはとｊニした白径２．
０都のストレー１へ・ピンをブラング用金型に使用した
ところ、記号ＢのＳ Ｕ Ｓ ３０４ ！１＃押出ピン
は１０．０００シヨツト後、曲りおにび摩耗を生じたが
、記号Ａの本発明押出ピンは、変形皆無であり、また耐
摩耗性も優れており、成形作業能率もＳＵＳ製在来品よ
りも良好であった。Finally, the white diameter 2. has been heat treated according to Table 2.
When I used the pin to Stray 1 of 0 capital in the mold for Brang, it was SUS 304 with symbol B! The 1# extrusion pin suffered bending and abrasion after 10,000 shots, but the extrusion pin of the present invention with symbol A shows no deformation, has excellent wear resistance, and has superior molding efficiency compared to that made of SUS. It was better than conventional products.
以上説明したｊ：うに、本発明押出ピンは、合金組成と
してＣＯ，４〜０．７％、３ｉ０．ｉ〜２．０％、Ｍｎ
１０，０〜１８．０％、Ｃｒ１０．０〜１５．０％、■
１．５〜３．０％残部鉄および若干の不純物からなる鋼
の棒材を１１５０’Ｃ望冷の溶体化処理状態で加工して
所定の形状にした後、７５０℃前後で時効処理を行なっ
てｈｌ ｐ ０４５前後の硬さに析出硬化ざＵ−たもの
であり、透磁率は１．０１を示し、完全非磁性であり、
また耐摩耗性も優れているので、プラスデック用非磁性
押出ビンとして最適のものである。The extruded pin of the present invention described above has an alloy composition of CO, 4 to 0.7%, 3i0. i~2.0%, Mn
10.0~18.0%, Cr10.0~15.0%, ■
A steel bar consisting of 1.5 to 3.0% balance iron and some impurities is processed into the desired shape by solution treatment at 1150'C, and then aged at around 750°C. It has been precipitation hardened to a hardness of around HL P 045, has a magnetic permeability of 1.01, and is completely non-magnetic.
It also has excellent abrasion resistance, making it ideal as a non-magnetic extrusion bottle for Plus Deck.
Claims (1)
、Ｍ ｎ １０．０〜１８．０％、Ｃｒ １０．０〜１
５．０％、■１．５〜３．０％、残部鉄及び若干の不純
物ノ〕冒うなる鋼の棒拐を、溶体化処理状態で加工し゛
Ｃ所定の形状にした後、７５０℃前後で時効処理を行な
ってト１１−２０４５前後の硬さに析出硬化させたこと
を特徴とするプラスデック用非磁性押出ピン。Vehicle distance %: CO, 4-0.7%, Si 0.1-2.0%
, Mn 10.0-18.0%, Cr 10.0-1
5.0%, ■1.5-3.0%, balance iron and some impurities] A steel bar containing 1.5% to 3.0%, balance iron and some impurities was processed in a solution treatment state to form a predetermined shape, and then heated at around 750℃. A non-magnetic extruded pin for a plastic deck, characterized in that it is precipitation hardened to a hardness of about 11-2045 by aging treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58172644A JPS6063355A (en) | 1983-09-19 | 1983-09-19 | Nonmagnetic pin for extruding plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58172644A JPS6063355A (en) | 1983-09-19 | 1983-09-19 | Nonmagnetic pin for extruding plastic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6063355A true JPS6063355A (en) | 1985-04-11 |
| JPS6212303B2 JPS6212303B2 (en) | 1987-03-18 |
Family
ID=15945701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58172644A Granted JPS6063355A (en) | 1983-09-19 | 1983-09-19 | Nonmagnetic pin for extruding plastic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6063355A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005123365A1 (en) * | 2004-06-15 | 2005-12-29 | The Timken Company | Worm gear assembly having improved physical properties and method of making same |
-
1983
- 1983-09-19 JP JP58172644A patent/JPS6063355A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005123365A1 (en) * | 2004-06-15 | 2005-12-29 | The Timken Company | Worm gear assembly having improved physical properties and method of making same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6212303B2 (en) | 1987-03-18 |
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