JPH11279673A - Zinc alloys for molds, molds and mold blocks - Google Patents
Zinc alloys for molds, molds and mold blocksInfo
- Publication number
- JPH11279673A JPH11279673A JP8436598A JP8436598A JPH11279673A JP H11279673 A JPH11279673 A JP H11279673A JP 8436598 A JP8436598 A JP 8436598A JP 8436598 A JP8436598 A JP 8436598A JP H11279673 A JPH11279673 A JP H11279673A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- mold
- zinc alloy
- porosity
- zinc
- 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.)
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Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
(57)【要約】
【課題】耐久性が向上しており、鋳造の際の注湯温度が
下がり、エネルギーコストが下がり、鋳造、加工が容易
であり、溶解ポットの寿命が延伸され、注湯後の凝固時
間が短縮しており、しかもポロシティの発生が抑制され
た金型用亜鉛合金及びこれを用いて鋳造で製作された金
型及び金型ブロックを提供すること。
【解決手段】マグネシウム１．５〜２．５重量％、アル
ミニウム３〜５重量％及び銅２〜４重量％を含み、所望
によりチタン０．０３〜０．２重量％、ジルコニウム
０．０３〜０．２重量％、ポロン０．０３〜０．２重量
％及びランタノイド０．０３〜０．２重量％のいずれか
１種以上を含み、残部が亜鉛と不可避の不純物からな
り、凝固開始温度が３９０度以下、ビッカース硬さが１
５０以上で、ポロシティの発生の抑制された、金型用亜
鉛合金、並びに該合金からなる金型又は金型用ブロッ
ク。(57) [Summary] [PROBLEMS] To improve the durability, to lower the temperature of pouring at the time of casting, to lower the energy cost, to facilitate casting and processing, to extend the life of the melting pot, and to pouring the molten metal. To provide a zinc alloy for a mold in which the subsequent solidification time is reduced and generation of porosity is suppressed, and a mold and a mold block manufactured by casting using the same. SOLUTION: The composition contains 1.5 to 2.5% by weight of magnesium, 3 to 5% by weight of aluminum and 2 to 4% by weight of copper, and optionally 0.03 to 0.2% by weight of titanium and 0.03 to 0% by weight of zirconium. 0.2% by weight, 0.03 to 0.2% by weight of polon and 0.03 to 0.2% by weight of a lanthanoid, the balance consisting of zinc and unavoidable impurities, and a solidification start temperature of 390%. Degree, Vickers hardness is 1
A zinc alloy for a mold having a porosity of 50 or more, in which generation of porosity is suppressed, and a mold or a mold block made of the alloy.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車業界、家電
業界等で広く利用されている少量生産用金型の製作に用
いる亜鉛合金及びその合金からなる金型及び金型用ブロ
ックに関し、より詳しくは、硬度が向上しており、凝固
開始温度が低下しており、且つポロシティの発生の抑制
された金型用亜鉛合金及びこの合金を用いて鋳造で製作
された金型及び金型用ブロックに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a zinc alloy, a mold made of such an alloy, and a mold block used for manufacturing a mold for small-quantity production widely used in the automobile industry, the home appliance industry, and the like. The present invention relates to a zinc alloy for a mold in which hardness is improved, a solidification start temperature is lowered, and porosity is suppressed, and a mold and a mold block manufactured by casting using this alloy. .
【０００２】[0002]
【従来の技術】従来、プラスチックの射出成形及び鋼板
のプレス成形に用いられる金型としては、鋳鉄製、鋳鋼
製の数十万ショットを越える大量生産に適した金型、及
び亜鉛基合金を４１０〜４５０℃で砂型鋳造することに
より製作された量産前の少量試作に適した金型が知られ
ている。この亜鉛基合金としてはＺＡＳ（Ｚｎ−４．１
Ａｌ−３．０Ｃｕ−０．０４Ｍｇ）が一般的であるが、
最近、更に高強度化した亜鉛基合金も開発されている
（特公平６−７５８１４号公報、特公平６−１５６９８
号公報、特公平７−４１３９９号公報、特公平７−７２
３１３号公報等）。しかしながら、これらの高強度化亜
鉛基合金はいずれも汎用のＺＡＳと比べて鋳造性が微妙
に変化、特に融点が僅かにせよ上昇する方向に変化する
という問題があった。2. Description of the Related Art Conventionally, molds used for injection molding of plastics and press molding of steel sheets include cast iron and cast steel molds suitable for mass production exceeding hundreds of thousands of shots, and zinc-based alloys of 410 or more. 2. Description of the Related Art There is known a mold manufactured by sand casting at -450 ° C and suitable for small-scale trial production before mass production. As the zinc-based alloy, ZAS (Zn-4.1)
Al-3.0Cu-0.04Mg) is common,
Recently, further strengthened zinc-based alloys have been developed (JP-B-6-75814, JP-B-6-15698).
JP, JP-B-7-41399, JP-B-7-72
No. 313). However, all of these high-strength zinc-based alloys have a problem in that the castability slightly changes, especially in the direction in which the melting point increases even slightly, as compared with general-purpose ZAS.
【０００３】一方、本出願人は、先に、アルミニウムを
含有する亜鉛合金又はアルミニウム及び銅を含有する亜
鉛合金にマグネシウムを添加することによって融点を下
げ、硬度を上げた合金（Ｚｎ−３〜１０．５Ａｌ−０〜
１０．５Ｃｕ−１〜４Ｍｇ）を提案した（特開平４−１
４３２３８号公報）。しかし、この先に提案した合金
は、融点が下がるものの引けの発生状況等が変化するの
で使い易い合金とは言えず、同時に衝撃強さが大幅に低
下し、またポロシティが発生するという問題があった。
それでこの先に提案した合金は肉盛等により表面硬質層
の形成に用いるという方向で検討されてきた（特開平５
−８４５９１号公報、特開平５−１２３８５８号公
報）。[0003] On the other hand, the present applicant has previously disclosed an alloy (Zn-3 to 10) in which the melting point is reduced and the hardness is increased by adding magnesium to a zinc alloy containing aluminum or a zinc alloy containing aluminum and copper. .5Al-0
10.5Cu-1 to 4Mg).
No. 43238). However, the alloy proposed earlier is not an easy-to-use alloy because the melting point is lowered but the occurrence of shrinkage changes. .
Therefore, it has been studied to use the previously proposed alloy for forming a hard surface layer by overlaying or the like (Japanese Unexamined Patent Publication No. Hei 5
-84591, JP-A-5-123858).
【０００４】[0004]
【発明が解決しようとする課題】本発明は、より硬質に
することで耐久性が向上しており、より凝固開始温度を
下げることで鋳造の際の注湯温度が下がり、エネルギー
コストが下がり、鋳造、加工が容易であり、また溶解ポ
ットの寿命が延伸され、加えて注湯後の凝固時間が短縮
しており、しかもポロシティの発生が抑制された金型用
亜鉛合金及びこれを用いて鋳造で製作された金型及び金
型ブロックを提供することを課題としている。According to the present invention, the durability is improved by making the material harder, and the pouring temperature during casting is lowered by lowering the solidification starting temperature, and the energy cost is reduced. It is easy to cast and process, the life of the melting pot is extended, the solidification time after pouring is shortened, and the generation of porosity is suppressed. It is an object of the present invention to provide a mold and a mold block manufactured by the method described above.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、マグネシ
ウムを添加したＺｎ−Ａｌ−Ｃｕ系亜鉛合金は硬質であ
ると共に融点が低下する傾向にあることに着目して、Ｚ
ｎ−Ａｌ−Ｃｕ−Ｍｇ系亜鉛合金の鋳造性、耐衝撃性が
改善でき、ポロシティの発生が抑制される成分組成範囲
を探索した。その結果、アルミニウム含有量が３〜５重
量％であり、銅含有量が２〜４重量％であり、マグネシ
ウム含有量が１．５〜２．５重量％である場合に限り、
凝固開始温度がＺＡＳの４１０℃から３９０℃以下に低
下するにも関わらず、型の形状再現性が向上すると共に
ポロシテイの発生が著しく減少すること、即ち、ＺＡＳ
以上の鋳造性が得られること、また、この範囲では亜共
晶となることもあり、ＺｎＭｇ化合物が微細化する傾向
にあり、衝撃強さはＺＡＳに比べて１／２程度に低下す
るものの金型用途に問題ない程度に押さえられることを
見いだし、本発明を完成した。SUMMARY OF THE INVENTION The present inventors have focused on the fact that a Zn-Al-Cu-based zinc alloy to which magnesium is added is hard and has a low melting point.
We searched for a component composition range in which the castability and impact resistance of the n-Al-Cu-Mg based zinc alloy can be improved and the generation of porosity is suppressed. As a result, only if the aluminum content is 3-5 wt%, the copper content is 2-4 wt%, and the magnesium content is 1.5-2.5 wt%,
Despite the solidification start temperature dropping from 410 ° C. of ZAS to 390 ° C. or less, the reproducibility of the shape of the mold is improved and the occurrence of porosity is remarkably reduced.
Although the above castability is obtained, and in this range, it may become hypoeutectic, the ZnMg compound tends to be finer, and although the impact strength is reduced to about 1/2 as compared with ZAS, gold The present inventors have found that it can be held down to a level that does not cause any problem in mold use, and completed the present invention.
【０００６】即ち、本発明の金型用亜鉛合金は、マグネ
シウム１．５〜２．５重量％、アルミニウム３〜５重量
％及び銅２〜４重量％を含み、残部が亜鉛と不可避の不
純物からなり、凝固開始温度が３９０度以下、ビッカー
ス硬さが１５０以上で、ポロシティの発生の抑制され
た、金型用亜鉛合金である。また、本発明の金型用亜鉛
合金は、更に、チタン０．０３〜０．２重量％、ジルコ
ニウム０．０３〜０．２重量％、ポロン０．０３〜０．
２重量％及びランタノイド０．０３〜０．２重量％のい
ずれか１種以上を含むことができる。That is, the zinc alloy for a mold according to the present invention contains 1.5 to 2.5% by weight of magnesium, 3 to 5% by weight of aluminum and 2 to 4% by weight of copper, and the balance is zinc and unavoidable impurities. This is a zinc alloy for molds having a solidification start temperature of 390 ° C. or less, a Vickers hardness of 150 or more, and suppressed generation of porosity. Further, the zinc alloy for a mold of the present invention further comprises titanium 0.03 to 0.2% by weight, zirconium 0.03 to 0.2% by weight, and polon 0.03 to 0.
Any one or more of 2% by weight and 0.03 to 0.2% by weight of a lanthanoid can be contained.
【０００７】[0007]
【発明の実施の形態】本発明の亜鉛合金において、アル
ミニウムは亜鉛合金の引張強さ等の機械的強度を増大さ
せる働きがあり、その添加効果を発揮させるためには３
重量％以上含有することが好ましい。しかし、その添加
量が５重量％を超えると逆引け等の鋳造性の問題が生じ
やすく、また、マグネシウム含有量との関連でポロシテ
ィ発生の原因となる傾向があるので好ましくない。BEST MODE FOR CARRYING OUT THE INVENTION In the zinc alloy of the present invention, aluminum has the function of increasing the mechanical strength such as the tensile strength of the zinc alloy.
It is preferred that the content be at least 10% by weight. However, if the addition amount exceeds 5% by weight, castability problems such as reverse shrinkage tend to occur, and porosity tends to be generated in relation to the magnesium content, which is not preferable.
【０００８】本発明の亜鉛合金において、銅は亜鉛合金
の引張強さ等の機械的強度を更に増大させる働きがあ
り、その添加効果を発揮させるためには２重量％以上含
有することが好ましい。しかし、その添加量が４重量％
を超えると逆引け等の鋳造性の問題が生じやすく、ま
た、マグネシウム含有量との関連でポロシティ発生の原
因となる傾向があるので好ましくない。[0008] In the zinc alloy of the present invention, copper has a function of further increasing the mechanical strength such as tensile strength of the zinc alloy, and is preferably contained in an amount of 2% by weight or more in order to exert the effect of its addition. However, the amount added was 4% by weight.
Exceeding the range tends to cause castability problems such as reverse shrinkage, and tends to cause porosity in relation to the magnesium content.
【０００９】本発明の亜鉛合金において、マグネシウム
は亜鉛合金の硬さを上昇させる働きがあり、１重量％以
上の添加で硬さが急上昇し、１５０以上のビッカース硬
さを得ることできる。また、マグネシウムは亜鉛合金の
凝固開始温度、実用鋳造温度を低下させる働きがあり、
その添加効果を発揮させるためには１重量％以上含むこ
とが必要である。しかし、マグネシウムの添加量が１．
５重量％以下である場合には、共晶点から遠いためポロ
シテイが発生しやすくなる。一方、その添加量を共晶の
２．５重量％以上にした場合はＺｎＭｇ系化合物が粗大
になり衝撃強さが極端に低下する。また、こうした化合
物の存在がポロシテイの原因になりやすい。従って、ポ
ロシティの発生を抑制するためにはマグネシウム含有量
が１．５〜２．５重量％である必要がある。In the zinc alloy of the present invention, magnesium has the function of increasing the hardness of the zinc alloy, and when added in an amount of 1% by weight or more, the hardness sharply increases, and a Vickers hardness of 150 or more can be obtained. Also, magnesium has the function of lowering the solidification start temperature of zinc alloy and the practical casting temperature,
In order to exert the effect of the addition, it is necessary to contain 1% by weight or more. However, when the amount of magnesium added is 1.
If the content is 5% by weight or less, porosity is likely to be generated since it is far from the eutectic point. On the other hand, when the addition amount is set to 2.5% by weight or more of the eutectic, the ZnMg-based compound becomes coarse and the impact strength is extremely reduced. Also, the presence of such compounds tends to cause porosity. Therefore, in order to suppress the occurrence of porosity, the magnesium content needs to be 1.5 to 2.5% by weight.
【００１０】本発明の亜鉛合金においては、亜鉛合金の
機械的強度を更に増大させるためにチタン０．０３〜
０．２重量％、ジルコニウム０．０３〜０．２重量％、
ポロン０．０３〜０．２重量％及びランタノイド０．０
３〜０．２重量％のいずれか１種以上を含むことができ
る。それらの添加量が０．０３重量％未満の場合には添
加効果が不十分であり、また０．２重量％を超えて添加
してもそれ以上の添加効果は得られない。[0010] In the zinc alloy of the present invention, in order to further increase the mechanical strength of the zinc alloy, 0.03 to 1.0% of titanium is used.
0.2% by weight, zirconium 0.03-0.2% by weight,
Polon 0.03-0.2% by weight and lanthanoid 0.0
Any one or more of 3 to 0.2% by weight can be contained. If the amount of addition is less than 0.03% by weight, the effect of addition is insufficient, and if it exceeds 0.2% by weight, no further effect is obtained.
【００１１】本発明の金型用亜鉛合金は凝固開始温度が
３９０度以下であり、ビッカース硬さが１５０以上であ
り、ポロシティの発生が抑制されたものであるので、鋳
造の際の注湯温度が低くてすみ、エネルギーコストが低
減され、また溶解ポットの寿命が延長され、加えて注湯
後の凝固時間が短縮され、更に、この亜鉛合金を用いて
鋳造で製作された金型は耐久性が向上している。The zinc alloy for molds according to the present invention has a solidification starting temperature of 390 ° C. or less, a Vickers hardness of 150 or more, and suppresses the occurrence of porosity. And the energy cost is reduced, the life of the melting pot is prolonged, the solidification time after pouring is shortened, and the mold made by casting using this zinc alloy is durable. Is improving.
【００１２】[0012]
【実施例】以下に、実施例及び比較例に基づいて本発明
を説明する。実施例１及び比較例１〜５下記組成の亜鉛
合金を用意した。 Ｚｎ−４．１Ａｌ−３．０Ｃｕ−０．０４Ｍｇ（比較例
１） Ｚｎ−４．１Ａｌ−３．０Ｃｕ−０．５Ｍｇ（比較例
２） Ｚｎ−４．１Ａｌ−３．０Ｃｕ−１．０Ｍｇ（比較例
３） Ｚｎ−４．１Ａｌ−３．０Ｃｕ−２．０Ｍｇ（実施例
１） Ｚｎ−４．１Ａｌ−３．０Ｃｕ−３．０Ｍｇ（比較例
４） Ｚｎ−４．１Ａｌ−３．０Ｃｕ−５．０Ｍｇ（比較例
５）The present invention will be described below based on examples and comparative examples. Example 1 and Comparative Examples 1 to 5 A zinc alloy having the following composition was prepared. Zn-4.1Al-3.0Cu-0.04Mg (Comparative Example 1) Zn-4.1Al-3.0Cu-0.5Mg (Comparative Example 2) Zn-4.1Al-3.0Cu-1.0Mg ( Comparative Example 3) Zn-4.1Al-3.0Cu-2.0Mg (Example 1) Zn-4.1Al-3.0Cu-3.0Mg (Comparative Example 4) Zn-4.1Al-3.0Cu- 5.0 Mg (Comparative Example 5)
【００１３】上記の各亜鉛合金を４３０℃で、引け量測
定用のコニカルシェルモールドに鋳造して鋳物を得た。
それらの鋳物の縦断面の状態を図１〜図６の写真に示
す。実施例１の鋳物の写真は図４であり、比較例１〜５
の鋳物の写真はそれぞれ図１、図２、図３、図５及び図
６である。図１〜図６から明らかなように、マグネシウ
ム添加量が２重量％である実施例１においてはポロシテ
ィの発生は観察されなかったが、マグネシウム添加量が
０．０４重量％、０．５重量％、１．０重量％、３．０
重量％、５．０重量％である場合にはポロシテイの発生
が観察された。Each of the above zinc alloys was cast at 430 ° C. in a conical shell mold for measuring shrinkage to obtain a casting.
The state of the longitudinal section of those castings is shown in the photographs of FIGS. The photograph of the casting of Example 1 is shown in FIG.
1, 2, 3, 5, and 6 are photographs of the casting, respectively. As is clear from FIGS. 1 to 6, no porosity was observed in Example 1 in which the added amount of magnesium was 2% by weight, but the added amount of magnesium was 0.04% by weight and 0.5% by weight. , 1.0% by weight, 3.0%
When the amount was 5.0% by weight, generation of porosity was observed.
【００１４】実施例２及び比較例６下記組成の亜鉛合金
を用意した。 Ｚｎ−４．１Ａｌ−３．０Ｃｕ−２．０Ｍｇ（実施例
２） Ｚｎ−４．１Ａｌ−３．０Ｃｕ−０．０４Ｍｇ（比較例
６） 上記の各亜鉛合金について、凝固開始温度、ビッカース
硬さ、ブリネル硬さ、圧縮強度、引張強度及びシャルピ
ー衝撃値を求めた。それらの測定結果を第１表に示す。Example 2 and Comparative Example 6 A zinc alloy having the following composition was prepared. Zn-4.1Al-3.0Cu-2.0Mg (Example 2) Zn-4.1Al-3.0Cu-0.04Mg (Comparative Example 6) For each of the above zinc alloys, solidification start temperature and Vickers hardness. , Brinell hardness, compressive strength, tensile strength and Charpy impact value. Table 1 shows the measurement results.
【００１５】 第１表から明らかなように、本発明の亜鉛合金（実施例
２の亜鉛合金）はＺＡＳ合金（比較例６の亜鉛合金）に
比べて衝撃値と引張強度は少し低下するものの硬さ、圧
縮強度はＺＡＳを上回っている。[0015] As is evident from Table 1, the zinc alloy of the present invention (the zinc alloy of Example 2) has a slightly lower impact value and tensile strength than the ZAS alloy (the zinc alloy of Comparative Example 6), but has a lower hardness and compression. Strength is above ZAS.
【００１６】実施例３及び比較例７下記組成の亜鉛合金
を用意した。 Ｚｎ−４．１Ａｌ−３．０Ｃｕ−２．０Ｍｇ（実施例
３） Ｚｎ−４．１Ａｌ−３．０Ｃｕ−０．０４Ｍｇ（比較例
７） 上記の各亜鉛合金を用いてＲ部が３ｍｍ、５ｍｍ又は７
ｍｍとなるプレス用金型を製作した。それらの金型を用
いて１ｍｍ厚の鋼板をそれぞれ１００枚プレス成形した
後、それらの金型のＲ部の形状の変化を調べて磨耗量を
測定した。磨耗量の測定は図７に示す部分についての値
である。それらの測定結果を第２表に示す。Example 3 and Comparative Example 7 A zinc alloy having the following composition was prepared. Zn-4.1Al-3.0Cu-2.0Mg (Example 3) Zn-4.1Al-3.0Cu-0.04Mg (Comparative Example 7) Using each of the above zinc alloys, the R portion was 3 mm and 5 mm. Or 7
mm was manufactured for the press. After 100 sheets of 1 mm thick steel plates were press-formed using these molds, the change in the shape of the R portion of each mold was examined to measure the amount of wear. The measurement of the wear amount is a value for the portion shown in FIG. Table 2 shows the measurement results.
【００１７】 第２表から明らかなように、本発明の亜鉛合金（実施例
３の亜鉛合金）はＺＡＳ合金（比較例７の亜鉛合金）に
比べて６倍から１２倍のプレス耐久性を有している。[0017] As is clear from Table 2, the zinc alloy of the present invention (the zinc alloy of Example 3) has 6 to 12 times the press durability as compared with the ZAS alloy (the zinc alloy of Comparative Example 7). .
【００１８】[0018]
【発明の効果】本発明の金型用亜鉛合金は凝固開始温度
が低く、ビッカース硬さが高く、ポロシティの発生が抑
制されたものであるので、鋳造の際の注湯温度が低くて
すみ、エネルギーコストが低減され、また溶解ポットの
寿命が延長され、加えて注湯後の凝固時間が短縮され、
更に、この亜鉛合金を用いて鋳造で製作された金型は耐
久性が向上していて型寿命が長い。The zinc alloy for dies according to the present invention has a low solidification starting temperature, a high Vickers hardness and a suppressed occurrence of porosity, so that the pouring temperature during casting can be low, Energy costs are reduced, the life of the melting pot is extended, and the solidification time after pouring is reduced,
Furthermore, a mold manufactured by casting using this zinc alloy has improved durability and a long mold life.
【図１】 比較例１の亜鉛合金鋳物の縦断面の状態を示
す写真である。FIG. 1 is a photograph showing a state of a vertical section of a zinc alloy casting of Comparative Example 1.
【図２】 比較例２の亜鉛合金鋳物の縦断面の状態を示
す写真である。FIG. 2 is a photograph showing a state of a vertical section of a zinc alloy casting of Comparative Example 2.
【図３】 比較例３の亜鉛合金鋳物の縦断面の状態を示
す写真である。FIG. 3 is a photograph showing a state of a vertical section of a zinc alloy casting of Comparative Example 3.
【図４】 実施例１の亜鉛合金鋳物の縦断面の状態を示
す写真である。FIG. 4 is a photograph showing a state of a vertical section of the zinc alloy casting of Example 1.
【図５】 比較例４の亜鉛合金鋳物の縦断面の状態を示
す写真である。5 is a photograph showing a state of a vertical section of a zinc alloy casting of Comparative Example 4. FIG.
【図６】 比較例５の亜鉛合金鋳物の縦断面の状態を示
す写真である。FIG. 6 is a photograph showing a state of a vertical section of a zinc alloy casting of Comparative Example 5.
【図７】 金型のＲ部の磨耗量の測定を説明する概略図
である。FIG. 7 is a schematic diagram for explaining measurement of the amount of wear at the R portion of the mold.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松田 文憲 愛知県豊田市トヨタ町１番地 トヨタ自動 車株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Fuminori Matsuda 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation
Claims (3)
ミニウム３〜５重量％及び銅２〜４重量％を含み、残部
が亜鉛と不可避の不純物からなり、凝固開始温度が３９
０度以下、ビッカース硬さが１５０以上で、ポロシティ
の発生の抑制された、金型用亜鉛合金。1. The composition contains 1.5 to 2.5% by weight of magnesium, 3 to 5% by weight of aluminum and 2 to 4% by weight of copper, and the balance consists of zinc and inevitable impurities.
A zinc alloy for molds having a Vickers hardness of 0 ° or less, a Vickers hardness of 150 or more, and suppressed generation of porosity.
ミニウム３〜５重量％及び銅２〜４重量％を含み、更
に、チタン０．０３〜０．２重量％、ジルコニウム０．
０３〜０．２重量％、ポロン０．０３〜０．２重量％及
びランタノイド０．０３〜０．２重量％のいずれか１種
以上を含み、残部が亜鉛と不可避の不純物からなり、凝
固開始温度が３９０度以下で、ビッカース硬さが１５０
以上で、ポロシティの発生の抑制された、金型用亜鉛合
金。2. It contains 1.5 to 2.5% by weight of magnesium, 3 to 5% by weight of aluminum and 2 to 4% by weight of copper, and further contains 0.03 to 0.2% by weight of titanium and 0.1 to 0.2% by weight of zirconium.
Contains at least one of 03-0.2% by weight, 0.03-0.2% by weight of polon and 0.03-0.2% by weight of lanthanoid, and the balance consists of zinc and unavoidable impurities, and solidification starts Temperature below 390 degrees, Vickers hardness 150
As described above, a zinc alloy for a mold in which porosity is suppressed.
金型用ブロック。3. A mold or a mold block comprising the alloy according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08436598A JP3800575B2 (en) | 1998-03-30 | 1998-03-30 | Zinc alloy for mold, mold and mold block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08436598A JP3800575B2 (en) | 1998-03-30 | 1998-03-30 | Zinc alloy for mold, mold and mold block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11279673A true JPH11279673A (en) | 1999-10-12 |
| JP3800575B2 JP3800575B2 (en) | 2006-07-26 |
Family
ID=13828511
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08436598A Expired - Fee Related JP3800575B2 (en) | 1998-03-30 | 1998-03-30 | Zinc alloy for mold, mold and mold block |
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| Country | Link |
|---|---|
| JP (1) | JP3800575B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816195A (en) * | 2017-02-27 | 2017-06-09 | 东北大学 | Gamma ray shielding material and preparation method thereof |
| WO2018159890A1 (en) * | 2017-02-28 | 2018-09-07 | 창원대학교 산학협력단 | Grain-oriented zinc-aluminum alloy and manufacturing method therefor |
-
1998
- 1998-03-30 JP JP08436598A patent/JP3800575B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816195A (en) * | 2017-02-27 | 2017-06-09 | 东北大学 | Gamma ray shielding material and preparation method thereof |
| WO2018159890A1 (en) * | 2017-02-28 | 2018-09-07 | 창원대학교 산학협력단 | Grain-oriented zinc-aluminum alloy and manufacturing method therefor |
| CN108779516A (en) * | 2017-02-28 | 2018-11-09 | 昌原大学校产学协力团 | Zn-Al alloy and preparation method thereof with directionality crystal grain |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3800575B2 (en) | 2006-07-26 |
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