JPS6395154A - Squeeze mold - Google Patents
Squeeze moldInfo
- Publication number
- JPS6395154A JPS6395154A JP61240017A JP24001786A JPS6395154A JP S6395154 A JPS6395154 A JP S6395154A JP 61240017 A JP61240017 A JP 61240017A JP 24001786 A JP24001786 A JP 24001786A JP S6395154 A JPS6395154 A JP S6395154A
- Authority
- JP
- Japan
- Prior art keywords
- zro
- mold
- die
- present
- drawing die
- 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
- 239000000919 ceramic Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、金属板のプレス加工において絞り成形品を製
造する際に用いられる金型に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a mold used in manufacturing a drawn product in press working of a metal plate.
従来、絞り型の型材として超硬合金が用いられている。 Conventionally, cemented carbide has been used as the material for drawing dies.
しかしながら、被成形材と型が金属同志のため焼付が生
じやすく、型の焼付摩耗及び焼付による製品不良が発生
するという問題点を有していた。係る問題点を解決する
ために潤滑油を使用して焼付防止を図っていた。However, since the material to be formed and the mold are made of metal, seizure is likely to occur, resulting in problems such as wear of the mold and product defects due to seizure. In order to solve this problem, lubricating oil has been used to prevent seizure.
しかしながら、潤滑油を使用した場合には、潤滑油内に
被成形物のパリ粉等が混入し被成形物を疵付けるため、
無潤滑でかつ焼付の生じない絞り型が要求されている。However, when lubricating oil is used, the powder of the molded object gets mixed into the lubricating oil and causes scratches on the molded object.
A drawing die that does not require lubrication and does not cause seizure is required.
本発明の目的は、無潤滑であっても焼付の生じない絞り
型を提供することにある。An object of the present invention is to provide a drawing die that does not cause seizure even without lubrication.
本発明は、ＺｒＯ，系セラミックスからなることを特徴
とする絞り型である。The present invention is a drawing die characterized by being made of ZrO-based ceramics.
本発明の絞り型を構成するＺｒＯ□系セラミックスは金
属との化学的結合が生じにくいため、従来の超硬製型の
ように被成形物と焼付を生ずることを防止することがで
きる。Since the ZrO□-based ceramics constituting the drawing die of the present invention is less likely to form a chemical bond with metal, it can be prevented from seizing with the object to be formed, unlike conventional carbide molds.
本発明にかかるＺｒＯ□系セラミックスとしては、ｙ、
ｏ、を１〜５ｍｏ１％含有するＺｒＯ□セラミックス、
又はＹ２Ｏ２を１〜５ｍｏ１％含有するｚｒＯｔ４０〜
９０ｗｔ％、残部Ａβｇｏ３からなるＺｒＯ，系セラミ
ックスが望ましい。特に強度、硬度の点からＡｌｔ０３
２０〜４０ｗｔ％、残部Ｙ２Ｏ３を約３ｍｏ１％含有す
るＺｒ０ｚからなるＺｒＯ□系セラミックスであって、
原料粉としてＺｒ０ｔ −ｈｏｓ Ａ ｊ！ ｇｏｓ
Ｏ共沈粉を用い、熱間静水圧プレス処理を施したものが
望ましい。ここでＺｒＯ，に含有されるｙｚｏ：＋の量
は゛、１ｍｏ１％未満では単斜晶、または５ｍｏ１％を
越えると立方晶が増加するため強靭化に必要な正方晶の
割合が低下する。またＡ ｌ ｇｏｓ量は１０ｗｔ％未
満では強度の向上に十分な効果がなく、また６０ｗｔ％
を越えると硬度は向上するが、逆に抗折強度が上昇する
。The ZrO□-based ceramics according to the present invention include y,
ZrO□ ceramics containing 1 to 5 mo1% of
Or zrOt40~ containing 1-5 mo1% of Y2O2
ZrO-based ceramics consisting of 90 wt% and the remainder Aβgo3 are desirable. Especially from the point of strength and hardness, Alt03
ZrO□-based ceramics consisting of Zr0z containing 20 to 40 wt% and the balance Y2O3 about 3 mo1%,
Zr0t -hos A j! as raw material powder. gos
It is preferable to use O co-precipitated powder and apply hot isostatic pressing. Here, the amount of yzo:+ contained in ZrO, is less than 1 mo1%, monoclinic crystal, and when it exceeds 5 mo1%, cubic crystal increases, so that the proportion of tetragonal crystal necessary for toughening decreases. In addition, if the amount of Al gos is less than 10 wt%, it will not have a sufficient effect on improving the strength, and if the amount is less than 10 wt%,
If it exceeds this, the hardness will improve, but on the contrary, the bending strength will increase.
〔実施例〕 以下本発明を実施例に基づき説明する。〔Example〕 The present invention will be explained below based on examples.
Ａ ｌ ２０３を２０ｗｔ％含有する市販のＺｒＯ□粉
末（Ｙ２Ｏ２は、Ｚｒ０ｚに対し３ｍｏ１％含有）を、
ラバープレスで３ｔｏｎ／ｃｄの圧力で圧粉した後、所
定の形状に加工し、１４００℃で大気中で焼結した。さ
らに、この焼結体に、１４５０℃、 １１０００ａｔの
条件下でＨＩＰを適用し緻密化した。そして、第１図（
１ダイス、２ダイケース）の様に仕上げ加工し絞り型と
した。これと耐久性を比較するために、従来から用いら
れてきた超硬材（Ｋ−３０）で同形状の型を作成した。Commercially available ZrO□ powder containing 20 wt% of Al 203 (Y2O2 contains 3 mo1% of Zr0z),
After compacting with a rubber press at a pressure of 3 tons/cd, the powder was processed into a predetermined shape and sintered at 1400° C. in the air. Further, HIP was applied to this sintered body under conditions of 1450° C. and 11000 at to make it dense. And Figure 1 (
1 die, 2 die cases) were finished and made into drawing dies. In order to compare the durability with this, a mold of the same shape was made from a conventionally used carbide material (K-30).
テスト方法は、厚さＩＨの鋼板（ＳＵＳ ３０４）をプ
レス機で、深さが９鶴となるようにパンチで成形した（
無潤滑）。５万個成形した後、ダイス側面で最も深く摩
耗した箇所の深さで評価を行った。その結果、本試作品
の場合１２μｍであるのに対し、超硬の場合３１μｍで
あった。そして、超硬の方は３万個ぐらいから、製品の
肌に疵が発生したのに対し、本試作品による製品の肌は
、５万個成形した後も光沢があった。The test method was to form a steel plate (SUS 304) with an IH thickness using a press machine and punching it to a depth of 9 mm.
(no lubrication). After molding 50,000 pieces, the depth of the most deeply worn part on the side of the die was evaluated. As a result, it was 12 μm in the case of this prototype, while it was 31 μm in the case of carbide. In contrast to the carbide product, where scratches appeared on the skin of the product after 30,000 pieces, the skin of this prototype product remained glossy even after 50,000 pieces were molded.
以上説明のように、本発明絞り型は潤滑油を使用しなく
とも被成形材との焼付が生じることもなく、工業上有益
である。As explained above, the drawing die of the present invention does not use lubricating oil and does not seize with the material to be formed, and is industrially useful.
第１図は、実施例に用いたダイスの断面図である。 FIG. 1 is a cross-sectional view of the die used in the example.
Claims (3)
る絞り型。(1) A drawing die characterized by being made of ZrO_2 ceramic.
４ｍｏｌ％含有するＺｒＯ＿２である特許請求の範囲第
１項記載の絞り型。(2) ZrO_2 ceramics have Y_2O_3 from 2 to
The drawing die according to claim 1, which is ZrO_2 containing 4 mol%.
４ｍｏｌ％含有するＺｒＯ＿２４０〜９０ｗｔ％、残部
Ａｌ＿２Ｏ＿３である特許請求の範囲第１項記載の絞り
型。(3) ZrO_2 ceramics have Y_2O_3 from 2 to
The drawing die according to claim 1, which contains 4 mol% of ZrO_240 to 90 wt%, and the balance is Al_2O_3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61240017A JPS6395154A (en) | 1986-10-08 | 1986-10-08 | Squeeze mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61240017A JPS6395154A (en) | 1986-10-08 | 1986-10-08 | Squeeze mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6395154A true JPS6395154A (en) | 1988-04-26 |
Family
ID=17053223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61240017A Pending JPS6395154A (en) | 1986-10-08 | 1986-10-08 | Squeeze mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6395154A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045946C (en) * | 1991-01-24 | 1999-10-27 | 合肥工业大学 | Ceramic drawing die with precise structure and its production process |
-
1986
- 1986-10-08 JP JP61240017A patent/JPS6395154A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045946C (en) * | 1991-01-24 | 1999-10-27 | 合肥工业大学 | Ceramic drawing die with precise structure and its production process |
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