JP2001047158A - Columnar guide for die formed of corrosion resistant cemented carbide - Google Patents
Columnar guide for die formed of corrosion resistant cemented carbideInfo
- Publication number
- JP2001047158A JP2001047158A JP11249114A JP24911499A JP2001047158A JP 2001047158 A JP2001047158 A JP 2001047158A JP 11249114 A JP11249114 A JP 11249114A JP 24911499 A JP24911499 A JP 24911499A JP 2001047158 A JP2001047158 A JP 2001047158A
- Authority
- JP
- Japan
- Prior art keywords
- cemented carbide
- guide
- mirror
- corrosion
- sintered
- 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
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、打抜き加工、曲げ
加工、絞り加工、鍛造加工、射出成形加工、ダイカスト
加工、粉末成形加工等に用いる金型用柱状案内具に関す
る。特に、本発明は、半導体精密部品の製造に用いる打
抜き、曲げ金型のサブガイドへの利用や電気電子精密部
品の製造に用いるプラスチック射出成形金型のガイドピ
ンへの利用に適した金型用案内具である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column guide for a die used for punching, bending, drawing, forging, injection molding, die casting, powder molding, and the like. In particular, the present invention relates to a die suitable for use as a sub-guide for punching and bending dies used for manufacturing precision semiconductor components and a guide pin for plastic injection molding dies used for manufacturing electrical and electronic precision components. It is a guide.
【０００２】[0002]
【従来の技術】ストリッパーガイド方式の打抜き金型
は、図１に示すような構造になっている。ここで、下型
ダイプレート２の上面と上型ストリッパープレート３の
下面とが、平行を保ちながら繰返し上下動をする。この
上下動を案内するために、４本のサブガイドポスト６が
あり、上型ダイプレート１に、ポストホルダーを介して
取付け固定されている。これらのサブガイドポスト６
は、上型ストリッパープレート３及び下型ダイプレート
２の四隅を貫通している。上型ストリッパープレート３
には、ストリッパーブッシュ４がはめ込まれており、下
型ダイプレート２にも同様にダイプレートブッシュ５が
はめ込まれている。サブガイドポスト６は、これらの中
を貫通しており、これらの内面と摺り合いながら上下に
往復運動をする。2. Description of the Related Art A punching die of a stripper guide type has a structure as shown in FIG. Here, the upper surface of the lower die plate 2 and the lower surface of the upper stripper plate 3 repeatedly move up and down while keeping parallel. In order to guide this vertical movement, there are four sub-guide posts 6, which are attached and fixed to the upper die plate 1 via a post holder. These sub guide posts 6
Penetrate the four corners of the upper die stripper plate 3 and the lower die plate 2. Upper stripper plate 3
, A stripper bush 4 is fitted therein, and a lower die plate 2 is similarly fitted with a die plate bush 5. The sub guide post 6 penetrates through these, and reciprocates up and down while sliding on the inner surfaces thereof.
【０００３】従来の、打抜き金型用のサブガイドポスト
（金型用柱状案内具の一種）の素材には、高炭素クロム
軸受鋼鋼材（ＳＵＪ）が用いられ、必要に応じて焼入れ
処理を行なっていた。また、耐摩耗性が良いことや、熱
膨張率が小さいことの理由により、ＷＣ−Ｃｏ系等の超
硬合金も用いられていた（特開平６−１０６２５９）。[0003] Conventionally, a high carbon chromium bearing steel (SUJ) is used as a material for a sub-guide post (a type of columnar guide for a die) for a punching die. I was Further, a cemented carbide such as a WC-Co alloy has been used because of its good wear resistance and small thermal expansion coefficient (Japanese Patent Application Laid-Open No. 6-106259).
【０００４】[0004]
【発明が解決しようとする課題】しかし、従来の高炭素
クロム軸受鋼鋼材による金型用柱状案内具は、耐久性、
耐摩耗性が不充分であった。また、特開平６−１０６２
５９に示されている、ＷＣ−Ｃｏ系、ＷＣ−Ｃｏ−Ｔｉ
Ｃ系、ＷＣ−Ｃｏ−Ｎｉ系の超硬合金では、比較的耐食
性が劣るため、潤滑油や、作業者の汗や手垢等により表
面が腐食されやすいという欠点があった。However, conventional column guides for dies made of high-carbon chromium bearing steel are not suitable for durability and durability.
The abrasion resistance was insufficient. Also, Japanese Patent Application Laid-Open No. 6-1062
59, a WC-Co system, WC-Co-Ti
C-based and WC-Co-Ni-based cemented carbides have relatively poor corrosion resistance, and thus have the disadvantage that their surfaces are easily corroded by lubricating oils, sweat or grit of workers.
【０００５】[0005]
【課題を解決するための手段】上記の問題点は、請求項
１に記載の第１の発明、すなわちＷＣ−Ｎｉ系の超硬合
金からなり、略円柱形状に焼結成形し、摺動部表面を鏡
面研摩してなる金型用柱状案内具によって、解決され
る。SUMMARY OF THE INVENTION The above-mentioned problem is caused by the first aspect of the present invention, namely, a WC-Ni-based cemented carbide, which is sintered and formed into a substantially cylindrical shape, and a sliding portion is formed. The problem is solved by a column guide for a mold having a mirror-polished surface.
【０００６】また、上記の問題点は、請求項２に記載の
第２の発明、すなわちＷＣ−Ｎｉ−Ｃｒ−Ｍｏ系の超硬
合金からなり、略円柱形状に焼結成形し、摺動部表面を
鏡面研摩してなる金型用柱状案内具によっても、解決さ
れる。ここで、ＣｒとＭｏは、耐食性をさらに向上させ
る作用がある。[0006] The above-mentioned problem is also caused by the second aspect of the present invention, namely, a WC-Ni-Cr-Mo-based cemented carbide, which is sintered and formed into a substantially cylindrical shape, and a sliding portion is formed. The problem is also solved by a column guide for a mold having a mirror-polished surface. Here, Cr and Mo have an effect of further improving the corrosion resistance.
【０００７】さらに、上記の問題点は、請求項３に記載
の第３の発明、すなわちＷＣ−（Ｗ，Ｔｉ，Ｔａ）Ｃ−
Ｎｉ系の超硬合金からなり、略円柱形状に焼結成形し、
摺動部表面を鏡面研摩してなる金型用柱状案内具によっ
ても、解決される。ここで（Ｗ，Ｔｉ，Ｔａ）Ｃは、耐
摩耗性をさらに向上させる作用がある。Further, the above-mentioned problem is caused by the third aspect of the present invention, namely, WC- (W, Ti, Ta) C-.
It is made of Ni-based cemented carbide, sintered and formed into a substantially cylindrical shape,
The problem can also be solved by a column guide for a mold in which the surface of the sliding portion is mirror-polished. Here, (W, Ti, Ta) C has an effect of further improving the wear resistance.
【０００８】さらに、上記の問題点は、請求項４に記載
の第４の発明、すなわちＷＣ−（Ｗ，Ｔｉ，Ｔａ）Ｃ−
Ｎｉ−Ｃｒ−Ｍｏ系の超硬合金からなり、略円柱形状に
焼結成形し、摺動部表面を鏡面研摩してなる金型用柱状
案内具によっても、解決される。Further, the above-mentioned problem is caused by the fourth aspect of the present invention, namely, WC- (W, Ti, Ta) C-.
The problem can also be solved by a column guide for a mold, which is made of a Ni-Cr-Mo-based cemented carbide, sintered and formed into a substantially cylindrical shape, and the surface of the sliding portion is mirror-polished.
【０００９】ここで、前記のＷＣ−Ｎｉ−Ｃｒ−Ｍｏ系
およびＷＣ−（Ｗ，Ｔｉ，Ｔａ）Ｃ−Ｎｉ−Ｃｒ−Ｍｏ
系の超硬合金において、ＣｒとＭｏについては、両方で
はなく一方のみを含んでいてもよい。また、ＣｒとＭｏ
は、通常は原料粉末としてそれぞれＣｒ３Ｃ２、Ｍｏ２
Ｃを用いるが、これらに限定されるものではない。Here, the above-mentioned WC-Ni-Cr-Mo system and WC- (W, Ti, Ta) C-Ni-Cr-Mo
In the cemented carbide of the system, Cr and Mo may contain only one but not both. In addition, Cr and Mo
Is usually Cr 3 C 2 , Mo 2
C is used, but is not limited thereto.
【００１０】また、前記のＷＣ−（Ｗ，Ｔｉ，Ｔａ）Ｃ
−Ｎｉ系およびＷＣ−（Ｗ，Ｔｉ，Ｔａ）Ｃ−Ｎｉ−Ｃ
ｒ−Ｍｏ系の超硬合金において、（Ｗ，Ｔｉ，Ｔａ）Ｃ
中のＷ，ＴｉとＴａについては、３種すべてではなく１
または２種のみを含んでいてもよい。Further, the above-mentioned WC- (W, Ti, Ta) C
-Ni-based and WC- (W, Ti, Ta) C-Ni-C
In an r-Mo cemented carbide, (W, Ti, Ta) C
For W, Ti and Ta in the inside, not all three but 1
Alternatively, only two types may be included.
【００１１】なお、本発明による柱状案内具は、前記ス
トリッパーガイド方式の打抜き金型に限定されるもので
はなく、打抜き加工、曲げ加工、絞り加工、鍛造加工、
射出成形加工、ダイカスト加工、粉末成形加工等全般に
用いることができる。特に、半導体精密部品の製造に用
いる打抜き、曲げ金型のサブガイドへの利用や電気電子
精密部品の製造に用いるプラスチック射出成形金型のガ
イドピンへの利用に適している。The column guide according to the present invention is not limited to the stripper guide type punching die, but includes punching, bending, drawing, forging, and the like.
It can be used for injection molding, die casting, powder molding and the like. In particular, it is suitable for use as a sub-guide for punching and bending dies used for manufacturing precision semiconductor components and for use as guide pins for plastic injection molding dies used for manufacturing electrical and electronic precision components.
【００１２】[0012]
【作用】ＷＣ−Ｎｉ系の超硬合金、ＷＣ−Ｎｉ−Ｃｒ−
Ｍｏ系の超硬合金、ＷＣ−（Ｗ，Ｔｉ，Ｔａ）Ｃ−Ｎｉ
系の超硬合金、ＷＣ−（Ｗ，Ｔｉ，Ｔａ）Ｃ−Ｎｉ−Ｃ
ｒ−Ｍｏ系の超硬合金は、いずれも、硬さがロックウェ
ル硬さのＡスケールを用いて測定すると、８０ＨＲＡ以
上と大変に硬いので、たとえ柱状案内具とブッシュの間
に異物が混入しても柱状案内具に傷が生じ難い。また、
いずれも熱膨張率が小さいため、柱状案内具とブッシュ
とを繰返し摺動することによって発熱しても、柱状案内
具の外形寸法の増加量はわずかである。一方、銅合金製
のブッシュは熱膨張率が大きく、摺動により温度が上昇
すると、ブッシュの内径寸法が増加する。そのために、
温度が上昇しても、柱状案内具とブッシュとの熱かじり
が生じ難い。また、耐食性に優れるため、潤滑油や、作
業者の汗や手垢等により表面が腐食され難い。[Function] WC-Ni cemented carbide, WC-Ni-Cr-
Mo-based cemented carbide, WC- (W, Ti, Ta) C-Ni
Based cemented carbide, WC- (W, Ti, Ta) C-Ni-C
The hardness of each of the r-Mo cemented carbides is as high as 80 HRA or more when the hardness is measured using an A-scale of Rockwell hardness. Therefore, foreign matter is mixed between the columnar guide and the bush. However, the columnar guide is hardly damaged. Also,
Since the coefficient of thermal expansion of each is small, even if heat is generated by repeatedly sliding the columnar guide and the bush, the increase in the outer dimensions of the columnar guide is small. On the other hand, a bush made of a copper alloy has a large coefficient of thermal expansion, and when the temperature rises due to sliding, the inner diameter of the bush increases. for that reason,
Even if the temperature rises, it is difficult for the columnar guide and the bush to seize. In addition, since the surface is excellent in corrosion resistance, the surface is hardly corroded by lubricating oil, perspiration or dirt of an operator.
【００１３】[0013]
【実施例】以下、本発明の実施例について説明する。重
量％において、９０％ＷＣ−１０％Ｎｉ、８９％ＷＣ−
１０％Ｎｉ−０．５％Ｃｒ−０．５％Ｍｏ、７０％ＷＣ
−２０％（Ｔｉ，Ｔａ）Ｃ−１０％Ｎｉ、６９％ＷＣ−
２０％（Ｔｉ，Ｔａ）Ｃ−１０％Ｎｉ−０．５％Ｃｒ−
０．５％Ｍｏ組成の４種の超硬合金で、比較例のＷＣ−
１０％Ｃｏ超硬合金とともに、サブガイドポストを製作
し、使用試験を行なった。その結果、比較例では使用す
るにつれて腐食していき、特に手で直接触れた場所につ
いては甚だしかった。一方、本実施例の４種において
は、このようなことは全くなく、表面は鏡面のまま維持
された。Embodiments of the present invention will be described below. 90% WC-10% Ni, 89% WC-
10% Ni-0.5% Cr-0.5% Mo, 70% WC
-20% (Ti, Ta) C-10% Ni, 69% WC-
20% (Ti, Ta) C-10% Ni-0.5% Cr-
Four types of cemented carbides with a 0.5% Mo composition.
A sub guide post was manufactured together with a 10% Co cemented carbide, and a use test was performed. As a result, in the comparative example, it corroded as it was used, and it was particularly severe in a place directly touched by hand. On the other hand, in the four types of the present example, such a thing did not occur at all, and the surface was maintained as a mirror surface.
【００１４】[0014]
【発明の効果】本発明の効果は、以下の通りである。本
発明の柱状案内具を用いることによって、案内具の摩耗
および腐食を軽減でき、案内具が長寿命になるという効
果がある。The effects of the present invention are as follows. By using the columnar guide of the present invention, wear and corrosion of the guide can be reduced, and there is an effect that the guide has a long life.
【００１５】[0015]
【図１】ストリッパーガイド方式の打抜き金型の概略図
である。FIG. 1 is a schematic view of a punching die of a stripper guide type.
１ 上型ダイプレート ２ 下型ダイプレート ３ 上型ストリッパープレート ４ ストリッパーブッシュ ５ ダイプレートブッシュ ６ サブガイドポスト 1 Upper die plate 2 Lower die plate 3 Upper stripper plate 4 Stripper bush 5 Die plate bush 6 Sub guide post
Claims (4)
り、摺動部表面を鏡面研摩してなる金型用柱状案内具。1. A column guide for a metal mold made of a corrosion-resistant WC-Ni-based cemented carbide and having a sliding portion surface mirror-polished.
硬合金からなり、摺動部表面を鏡面研摩してなる金型用
柱状案内具。2. A column guide for a metal mold made of a corrosion-resistant WC-Ni-Cr-Mo-based cemented carbide and having a sliding portion surface mirror-polished.
Ｎｉ系の超硬合金からなり、摺動部表面を鏡面研摩して
なる金型用柱状案内具。3. The corrosion-resistant WC- (W, Ti, Ta) C-
A column guide for molds made of a Ni-based cemented carbide and having the sliding portion surface mirror-polished.
Ｎｉ−Ｃｒ−Ｍｏ系の超硬合金からなり、摺動部表面を
鏡面研摩してなる金型用柱状案内具。4. Corrosion-resistant WC- (W, Ti, Ta) C-
A columnar guide for molds made of a Ni-Cr-Mo-based cemented carbide and having the sliding portion surface mirror-polished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11249114A JP2001047158A (en) | 1999-07-30 | 1999-07-30 | Columnar guide for die formed of corrosion resistant cemented carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11249114A JP2001047158A (en) | 1999-07-30 | 1999-07-30 | Columnar guide for die formed of corrosion resistant cemented carbide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001047158A true JP2001047158A (en) | 2001-02-20 |
Family
ID=17188168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11249114A Pending JP2001047158A (en) | 1999-07-30 | 1999-07-30 | Columnar guide for die formed of corrosion resistant cemented carbide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001047158A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011527952A (en) * | 2008-07-02 | 2011-11-10 | ビーエーエスエフ ソシエタス・ヨーロピア | Method for producing geometric oxide compact |
| WO2013166175A3 (en) * | 2012-05-03 | 2013-12-27 | Us Synthetic Corporation | Superhard components for injection molds |
| US8678801B2 (en) | 2011-01-12 | 2014-03-25 | Us Synthetic Corporation | Injection mold assembly including an injection mold cavity at least partially defined by a polycrystalline diamond material |
| US8702412B2 (en) | 2011-01-12 | 2014-04-22 | Us Synthetic Corporation | Superhard components for injection molds |
-
1999
- 1999-07-30 JP JP11249114A patent/JP2001047158A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011527952A (en) * | 2008-07-02 | 2011-11-10 | ビーエーエスエフ ソシエタス・ヨーロピア | Method for producing geometric oxide compact |
| US8678801B2 (en) | 2011-01-12 | 2014-03-25 | Us Synthetic Corporation | Injection mold assembly including an injection mold cavity at least partially defined by a polycrystalline diamond material |
| US8702412B2 (en) | 2011-01-12 | 2014-04-22 | Us Synthetic Corporation | Superhard components for injection molds |
| US9193103B2 (en) | 2011-01-12 | 2015-11-24 | Us Synthetic Corporation | Methods of injection molding |
| US9199400B2 (en) | 2011-01-12 | 2015-12-01 | Us Synthetic Corporation | Methods of injection molding an article |
| US9868229B2 (en) | 2011-01-12 | 2018-01-16 | Us Synthetic Corporation | Methods of injection molding an article |
| WO2013166175A3 (en) * | 2012-05-03 | 2013-12-27 | Us Synthetic Corporation | Superhard components for injection molds |
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