EP0899349A1 - Heat-resistant zinc alloy and molded article thereof - Google Patents
Heat-resistant zinc alloy and molded article thereof Download PDFInfo
- Publication number
- EP0899349A1 EP0899349A1 EP98115159A EP98115159A EP0899349A1 EP 0899349 A1 EP0899349 A1 EP 0899349A1 EP 98115159 A EP98115159 A EP 98115159A EP 98115159 A EP98115159 A EP 98115159A EP 0899349 A1 EP0899349 A1 EP 0899349A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alloy
- heat
- weight
- zinc alloy
- resistant 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.)
- Withdrawn
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
Definitions
- the present invention relates to a creep-resistant zinc alloy and a molded article thereof and more specifically to a heat-resistant zinc alloy exhibiting good creep resistance even at a temperature of not less than 100 °C and a molded article consisting of the heat-resistant zinc alloy.
- the zinc alloy has widely been used for producing parts of motorcars, parts of electrical apparatuses and metallic materials for construction according to the die-casting technique and the zinc alloys used in these applications are mainly composed of zinc-aluminum alloys.
- These zinc alloys can ensure excellent mechanical strength in the vicinity of room temperature, but they suffer from such a problem that they undergo severe creep at a temperature of not less than 100 °C and therefore, they cannot be used under such severe conditions. Accordingly, this greatly limits the use of die-casting molded article consisting of zinc alloys.
- the inventors of this invention have conducted various investigations to accomplish the foregoing objects, have found that the creep resistance of ILZRO 14 and ILZRO 16 at a temperature of not less than 100°C can significantly be improved by substituting at least one of nickel and manganese for the copper component thereof and have thus completed the present invention.
- a heat-resistant zinc alloy exhibiting good creep resistance at a temperature of not less than 100 °C , which comprises at least one of nickel and manganese in a total amount of not more than 3.5% by weight on the basis of the total weight of the alloy and the balance of zinc and inevitable impurities.
- heat-resistant zinc alloy of the present invention may optionally comprise at least one of the following component (a) to (d):
- a molded article which comprises the foregoing heat-resistant zinc alloy.
- Fig. 1 is a graph showing the results of the creep tests (changes in creep strain with time) observed for the zinc alloys produced in Example 1 and Comparative Example 1.
- the nickel and/or manganese components improve the creep resistanceof the zinc alloy at a temperature of not less than 100 °C .
- the total amount of nickel and/or manganese exceeds 3.5% by weight, the flowability of the molten metal of such an alloy is liable to be considerably impaired and this makes the die casting thereof very difficult.
- at least one of nickel and manganese is added to the heat-resistant zinc alloy of the present invention in a total amount of not more than 3.5% by weight and preferably from 0.7 to 3% by weight.
- the heat-resistant zinc alloy of the invention may optionally comprise copper.
- the copper component can improve the creep resistance of the resulting alloy at a temperature of not less than 100°C in combination with at least one of nickel and manganese. If the amount of copper incorporated into the alloy is not more thanabout 2% by weight, it in occluded in the zinc phase to thus reinforce the resulting zinc alloy, but if it exceeds 2% by weight, any further improvement in the effect of the addition thereof cannot be expected at all and if it exceeds 3% by weight, the resulting zinc alloy causes separation of an ⁇ -phase and this is liable to make the zinc alloy brittle. Accordingly, the amount of copper to be incorporated into the heat-resistant zinc alloy of the invention is not more than 2% by weight.
- the heat-resistant zinc alloy according to the present invention may optionally comprise at least one of titanium and zirconium.
- the titanium and/or zirconium components can significantly improve the creep strength of the resulting zinc alloy, but this effect of these metals reaches its maximum at an added amount of 2% by weight and any further improvement of the effect is not expected. Therefore, the heat-resistant zinc alloy of the present invention may comprise titanium and/or zirconium in a total amount of not more than 2% by weight.
- the heat-resistant zinc alloy of the invention may further comprise, if necessary, aluminum.
- the addition of aluminum in a small amount on the order of not more than 0.5% by weight is effective for inhibiting any oxidation of the zinc alloy molten metal.
- the zinc alloy of the present invention may comprise aluminum in an amount of not more than 0.5% by weight.
- the heat-resistant zinc alloy of the present invention may optionally comprise at least one member selected from the group consisting of chromium, scandium, beryllium, lithium, yttrium, lanthanoid and magnesium. These alloy components permit the improvement of the mechanical strength of the resulting zinc alloy. However, the addition of these metal components to the zinc alloy in a total amount of more than 0.5% by weight is liable to reduce the impact strength of the resulting zinc alloy. Accordingly, the zinc alloy of the present invention may comprise at least one of these metals in a total amount of not more than 0.5% by weight.
- the heat-resistant zinc alloy of the present invention is favorable for the cold chamber die casting, thixotropic casting and injection molding. Moreover, the zinc alloy of the present invention may likewise be applied to the usual sand molding, die casting, low pressure casting and various kinds of precision investment casting.
- the molded article of the present invention can be produced according to these casting techniques.
- thixotropic casting (thixocasting) herein used means a method which comprises the steps of precast-forming a raw zinc alloy in a cylinder of an injection molding machine such as that disclosed in Japanese Examined Patent Publication No. Hei 2-15620; realizing a thixotropy condition thereof under the influence of the shearing action by the screw of the machine to thus form an article.
- injection molding technique used herein is similar to the thixocasting method and means a method comprising the steps of heating a raw zinc alloy at a temperature of immediately above the melting point of the alloy and casting the alloy in its molten condition.
- the heat-resistant zinc alloy of the invention can be molded, for instance, by hot chamber die casting, cold chamber die casting, injection molding, thixocasting.
- Electrolytic zinc as a base metal and desired amounts of Ni, Mn, Cu, Al, Ti, Zr, Cr, Sc, Be, Li, Y, lanthanoid (Mishmetals, Mm) and/or Mg were introduced into a graphite crucible.
- the metals i. e., Ni, Mn, Cu, Al, Ti, Zr, Cr, Sc, Y, Mm and/or Mg were added to the crucible in the form of a master alloy, while Li and Be were directly added to the crucible and these metals were molten to thus prepare zinc alloys each containing the alloy components listed in the following Table 1 in amounts (% by weight) given in Table 1 and the balance of zinc and inevitable impurities.
- the zinc alloy of Comparative Example 1 corresponds to an existing zinc alloy, ILZRO 14.
- Cold chamber die casting was carried out using the molten metals of these zinc alloys.
- the casting were carried out under the following conditions: molten metal temperature: 470 to 550 °C ; mold temperature: 150 °C ; locking force: 35 tons; filling pressure: 80 kgf/cm 2 , to thus produce each piece for creep test having an original gauge length of 50 mm and a diameter of parallel portion of 6 mm ⁇ .
- Creep tests were carried out using these test pieces at an atmospheric temperature of 175 °C and a test load of 25 MPa, according to JIS Z 2271 to thus determine creep strains (%). The creep strains observed after 100 hours were determined. The results obtained are listed in Table 1. Moreover, the zinc alloys produced in Example 1 and Comparative Example 1 each were inspected for any change in creep strains with time. The results obtained are plotted on Fig. 1.
- the zinc alloys of Comparative Examples 2and 3 whose compositions are beyond the limits of the present invention have poor castability and do not form acceptable castings, since the content of nickel and manganese thereof are high and accordingly, the flowability of the molten metals thereof are low.
- the data plotted on Fig. 1 also clearly indicate that the zinc alloy of Example 1 is significantly improved in the creep characteristics as determined under a test temperature of 175°C and a test load of 25 MPa as compared with those observed for the zinc alloy of Comparative Example 1.
- the heat-resistant zinc alloy of the present invention is excellent in the creep resistance at a high temperature and thus the present invention can considerably expand the fields of application of molded articles of zinc alloys.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
A heat-resistant zinc alloy exhibiting good creep resistance even at a
temperature of not less than 100°C comprises at least one of nickel and
manganese in a total amount of not more than 3.5% by weight based on the
total weight of the alloy, titanium and/or zirconium by not more than
2%wt, optionally alluminium by not more than 0.5%wt, copper by not more
than 2%wt as well as one or more of Cr, Sc, Be, Li, Y and lanthanoids
by not more than 0.5%wt in total and the balance of zinc and inevitable
impurities. A molded article comprises the heat-resistant zinc alloy
defined above. The heat-resistant zinc alloy is excellent in the creep
resistance even at a high temperature and thus the heat-resistant zinc alloy
can considerably expand the fields of application of the molded articles
produced from the alloy.
Description
- The present invention relates to a creep-resistant zinc alloy and a molded article thereof and more specifically to a heat-resistant zinc alloy exhibiting good creep resistance even at a temperature of not less than 100 °C and a molded article consisting of the heat-resistant zinc alloy.
- Up to this time, the zinc alloy has widely been used for producing parts of motorcars, parts of electrical apparatuses and metallic materials for construction according to the die-casting technique and the zinc alloys used in these applications are mainly composed of zinc-aluminum alloys. These zinc alloys can ensure excellent mechanical strength in the vicinity of room temperature, but they suffer from such a problem that they undergo severe creep at a temperature of not less than 100 °C and therefore, they cannot be used under such severe conditions. Accordingly, this greatly limits the use of die-casting molded article consisting of zinc alloys.
- As zinc alloys developed for solving the foregoing problem, there have been proposed, for instance, heat-resistant zinc alloyssubstantially free of any aluminum component such as ILZRO 14 (Zn-1.2Cu-0.3Ti-0.02Al) and ILZRO 16 (Zn-1.2Cu-0.3(Ti+Cr)-0.02Al), but there has been desired for the development of a zinc alloy having further improved creep resistance even at a high temperature.
- In general, it is an object of the present invention to develop a heat-resistant zinc alloy which can satisfy the foregoing conventional requirements and which permits the solution of the foregoing problem and more specifically, it is an object of the present invention to provide a zinc alloy which exhibits high strength, good heat-resistant and good creep resistance even at a temperature of not less than 100°C and which can accordingly substantially expand the fields of application of molded articles thereof.
- It is another object of the present invention to provide a molded article consisting of the heat-resistant zinc alloy.
- The inventors of this invention have conducted various investigations to accomplish the foregoing objects, have found that the creep resistance of ILZRO 14 and ILZRO 16 at a temperature of not less than 100°C can significantly be improved by substituting at least one of nickel and manganese for the copper component thereof and have thus completed the present invention.
- According to an aspect of the present invention, there is provided a heat-resistant zinc alloy exhibiting good creep resistance at a temperature of not less than 100 °C , which comprises at least one of nickel and manganese in a total amount of not more than 3.5% by weight on the basis of the total weight of the alloy and the balance of zinc and inevitable impurities.
- Furthermore, the heat-resistant zinc alloy of the present invention may optionally comprise at least one of the following component (a) to (d):
- (a) not more than 2% by weight, based on the total weight of thealloy, of copper;
- (b) at least one of titanium and zirconium in a total amount of not more than 2% by weight based on the total weight of the alloy;
- (c) not more than 0.5% by weight, based on the total weight of the alloy, of aluminum; and
- (d) at least one member selected from the group consisting of chromium, scandium, beryllium, lithium, yttrium, lanthanoid and magnesium in a total amount of not more than 0.5% by weight based on the total weight of the alloy.
-
- According to another aspect of the present invention, there is also provided a molded article which comprises the foregoing heat-resistant zinc alloy.
- Fig. 1 is a graph showing the results of the creep tests (changes in creep strain with time) observed for the zinc alloys produced in Example 1 and Comparative Example 1.
- In the heat-resistant zinc alloy of the present invention, the nickel and/or manganese components improve the creep resistanceof the zinc alloy at a temperature of not less than 100 °C . In this respect, it is preferred to use a combination of nickel and manganese since the effect of the addition thereof is higher than that expected when they are used separately. If the total amount of nickel and/or manganese is not more than about 3.5% by weight, they are occluded in the zinc phase to thus reinforce the resulting zinc alloy, but if it exceeds 3.5% by weight, the resulting zinc alloy causes separation of an ε-phase and this is liable to make the zinc alloy brittle. Moreover, if the total amount of nickel and/or manganese exceeds 3.5% by weight, the flowability of the molten metal of such an alloy is liable to be considerably impaired and this makes the die casting thereof very difficult. For this reason, at least one of nickel and manganese is added to the heat-resistant zinc alloy of the present invention in a total amount of not more than 3.5% by weight and preferably from 0.7 to 3% by weight.
- The heat-resistant zinc alloy of the invention may optionally comprise copper. The copper component can improve the creep resistance of the resulting alloy at a temperature of not less than 100°C in combination with at least one of nickel and manganese. If the amount of copper incorporated into the alloy is not more thanabout 2% by weight, it in occluded in the zinc phase to thus reinforce the resulting zinc alloy, but if it exceeds 2% by weight, any further improvement in the effect of the addition thereof cannot be expected at all and if it exceeds 3% by weight, the resulting zinc alloy causes separation of an ε-phase and this is liable to make the zinc alloy brittle. Accordingly, the amount of copper to be incorporated into the heat-resistant zinc alloy of the invention is not more than 2% by weight.
- The heat-resistant zinc alloy according to the present invention may optionally comprise at least one of titanium and zirconium. The titanium and/or zirconium components can significantly improve the creep strength of the resulting zinc alloy, but this effect of these metals reaches its maximum at an added amount of 2% by weight and any further improvement of the effect is not expected. Therefore, the heat-resistant zinc alloy of the present invention may comprise titanium and/or zirconium in a total amount of not more than 2% by weight.
- The heat-resistant zinc alloy of the invention may further comprise, if necessary, aluminum. The addition of aluminum in a small amount on the order of not more than 0.5% by weight is effective for inhibiting any oxidation of the zinc alloy molten metal. For this reason, the zinc alloy of the present invention may comprise aluminum in an amount of not more than 0.5% by weight.
- The heat-resistant zinc alloy of the present invention may optionally comprise at least one member selected from the group consisting of chromium, scandium, beryllium, lithium, yttrium, lanthanoid and magnesium. These alloy components permit the improvement of the mechanical strength of the resulting zinc alloy. However, the addition of these metal components to the zinc alloy in a total amount of more than 0.5% by weight is liable to reduce the impact strength of the resulting zinc alloy. Accordingly, the zinc alloy of the present invention may comprise at least one of these metals in a total amount of not more than 0.5% by weight.
- The heat-resistant zinc alloy of the present invention is favorable for the cold chamber die casting, thixotropic casting and injection molding. Moreover, the zinc alloy of the present invention may likewise be applied to the usual sand molding, die casting, low pressure casting and various kinds of precision investment casting. The molded article of the present invention can be produced according to these casting techniques. The term "thixotropic casting (thixocasting)" herein used means a method which comprises the steps of precast-forming a raw zinc alloy in a cylinder of an injection molding machine such as that disclosed in Japanese Examined Patent Publication No. Hei 2-15620; realizing a thixotropy condition thereof under the influence of the shearing action by the screw of the machine to thus form an article. In addition, the term "injection molding technique" used herein is similar to the thixocasting method and means a method comprising the steps of heating a raw zinc alloy at a temperature of immediately above the melting point of the alloy and casting the alloy in its molten condition.
- The heat-resistant zinc alloy of the invention can be molded, for instance, by hot chamber die casting, cold chamber die casting, injection molding, thixocasting.
- The present invention will hereinafter be described in more detail with reference to the following working Examples, but the present invention is not restricted to these specific Examples at all.
- Electrolytic zinc as a base metal, and desired amounts of Ni, Mn, Cu, Al, Ti, Zr, Cr, Sc, Be, Li, Y, lanthanoid (Mishmetals, Mm) and/or Mg were introduced into a graphite crucible. The metals, i. e., Ni, Mn, Cu, Al, Ti, Zr, Cr, Sc, Y, Mm and/or Mg were added to the crucible in the form of a master alloy, while Li and Be were directly added to the crucible and these metals were molten to thus prepare zinc alloys each containing the alloy components listed in the following Table 1 in amounts (% by weight) given in Table 1 and the balance of zinc and inevitable impurities. In this regard, the zinc alloy of Comparative Example 1 corresponds to an existing zinc alloy, ILZRO 14.
- Cold chamber die casting was carried out using the molten metals of these zinc alloys. The casting were carried out under the following conditions: molten metal temperature: 470 to 550 °C ; mold temperature: 150 °C ; locking force: 35 tons; filling pressure: 80 kgf/cm2, to thus produce each piece for creep test having an original gauge length of 50 mm and a diameter of parallel portion of 6 mm ⊘ .
- Creep tests were carried out using these test pieces at an atmospheric temperature of 175 °C and a test load of 25 MPa, according to JIS Z 2271 to thus determine creep strains (%). The creep strains observed after 100 hours were determined. The results obtained are listed in Table 1. Moreover, the zinc alloys produced in Example 1 and Comparative Example 1 each were inspected for any change in creep strains with time. The results obtained are plotted on Fig. 1.
- The data listed in Table 1 clearly indicate that the zinc alloys produced in Examples 1 to 16 according to the present invention have low creep strains as determined at a test temperature of 175°C as compared with that observed for the zinc alloy produced in Comparative Example 1, i.e., an existing zinc alloy ILZRO 14.
- On the other hand, the zinc alloys of Comparative Examples 2and 3 whose compositions are beyond the limits of the present invention have poor castability and do not form acceptable castings, since the content of nickel and manganese thereof are high and accordingly, the flowability of the molten metals thereof are low.
- The data plotted on Fig. 1 also clearly indicate that the zinc alloy of Example 1 is significantly improved in the creep characteristics as determined under a test temperature of 175°C and a test load of 25 MPa as compared with those observed for the zinc alloy of Comparative Example 1.
- As has been explained above in detail, the heat-resistant zinc alloy of the present invention is excellent in the creep resistance at a high temperature and thus the present invention can considerably expand the fields of application of molded articles of zinc alloys.
Claims (8)
- A heat-resistant zinc alloy exhibiting good creep resistanceat a temperature of not less than 100 °C, comprising at least one of nickel and manganese in a total amount of not more than 3.5% byweight based on the total weight of the alloy and the balance of zinc and inevitable impurities.
- The heat-resistant zinc alloy of claim 1 wherein it comprises at least one of nickel and manganese in a total amount ranging from 0.7 to 3% by weight based on the total weight of the alloy.
- The heat-resistant zinc alloy of claim 1 wherein it further comprises not more than 2% by weight, based on the total weight ofthe alloy, of copper.
- The heat-resistant zinc alloy of claim 1 wherein it further comprises at least one of titanium and zirconium in a total amountof not more than 2% by weight based on the total weight of the alloy.
- The heat-resistant zinc alloy of claim 1 wherein it further comprises not more than 0.5% by weight, based on the total weight of the alloy, of aluminum.
- The heat-resistant zinc alloy of claim 1 wherein it further comprises at least one member selected from the group consisting of chromium, scandium, beryllium, lithium, yttrium, lanthanoid and magnesium in a total amount of not more than 0.5% by weight based on the total weight of the alloy.
- The heat-resistant zinc alloy of claim 1 wherein it further comprises at least two of the following components (a) to (d):(a) not more than 2% by weight, based on the total weight of thealloy, of copper;(b) at least one of titanium and zirconium in a total amount of not are than 2% by weight based on the total weight of the alloy;(c) not more than 0.5% by weight, based on the total weight of the alloy, of aluminum; and(d) at least one member selected from the group consisting of chromium, scandium, beryllium, lithium, yttrium, lanthanoid and magnesium in a total amount of not more than 0.5% by weight based on the total weight of the alloy.
- A molded article comprising the heat-resistant zinc alloy asset forth in any one of claims 1 to 7.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21839397A JPH1161299A (en) | 1997-08-13 | 1997-08-13 | Heat resistant zinc alloy and formed part |
JP218393/97 | 1997-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0899349A1 true EP0899349A1 (en) | 1999-03-03 |
Family
ID=16719212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98115159A Withdrawn EP0899349A1 (en) | 1997-08-13 | 1998-08-12 | Heat-resistant zinc alloy and molded article thereof |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0899349A1 (en) |
JP (1) | JPH1161299A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015031509A1 (en) | 2013-08-27 | 2015-03-05 | Jarden Zinc Products, LLC | Reduced conductivity and unique electromagnetic signature zinc alloy |
WO2015192279A1 (en) * | 2014-06-17 | 2015-12-23 | 宁波博威合金材料股份有限公司 | High-strength creep-resistant low-copper alloy material and application thereof |
CN108165797A (en) * | 2017-12-27 | 2018-06-15 | 洛阳神佳窑业有限公司 | A kind of preparation method of Zn-base alloy |
US10926312B2 (en) | 2013-12-20 | 2021-02-23 | Artazn Llc. | Nickel plated zinc alloys for coinage |
CN115874084A (en) * | 2022-12-23 | 2023-03-31 | 北京大学 | Zn-Li series creep-resistant zinc alloy and preparation method and application thereof |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100373959B1 (en) * | 1999-06-24 | 2003-02-26 | 미츠이 긴조쿠 고교 가부시키가이샤 | Zinc alloy casting and process for preparing the same |
KR101133775B1 (en) * | 2009-09-21 | 2012-08-24 | 한국생산기술연구원 | Magnesium mother alloy, manufacturing method thereof, Metal alloy using the same, and Metal alloy manufacturing method thereof |
CN114075634B (en) * | 2020-08-18 | 2022-08-12 | 上海交通大学 | Medical degradable Zn-Cu-Li ternary alloy and preparation and application thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2083866A5 (en) * | 1970-03-07 | 1971-12-17 | Metallgesellschaft Ag | Castable zinc alloy |
BE775207A (en) * | 1971-11-10 | 1972-05-10 | Centre Rech Metallurgique | Zinc-based alloys - with improved hot-creep resistance |
FR2366370A1 (en) * | 1976-10-01 | 1978-04-28 | Centre Rech Metallurgique | Zinc alloy with high creep strength - used for pressure die casting |
GB2066853A (en) * | 1979-12-03 | 1981-07-15 | Centre Rech Metallurgique | Zinc-based alloys |
JPH0941057A (en) * | 1995-08-02 | 1997-02-10 | Mitsui Mining & Smelting Co Ltd | Zinc alloy for thixocasting and injection molding |
-
1997
- 1997-08-13 JP JP21839397A patent/JPH1161299A/en active Pending
-
1998
- 1998-08-12 EP EP98115159A patent/EP0899349A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2083866A5 (en) * | 1970-03-07 | 1971-12-17 | Metallgesellschaft Ag | Castable zinc alloy |
BE775207A (en) * | 1971-11-10 | 1972-05-10 | Centre Rech Metallurgique | Zinc-based alloys - with improved hot-creep resistance |
FR2366370A1 (en) * | 1976-10-01 | 1978-04-28 | Centre Rech Metallurgique | Zinc alloy with high creep strength - used for pressure die casting |
GB2066853A (en) * | 1979-12-03 | 1981-07-15 | Centre Rech Metallurgique | Zinc-based alloys |
JPH0941057A (en) * | 1995-08-02 | 1997-02-10 | Mitsui Mining & Smelting Co Ltd | Zinc alloy for thixocasting and injection molding |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 097, no. 006 30 June 1997 (1997-06-30) * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015031509A1 (en) | 2013-08-27 | 2015-03-05 | Jarden Zinc Products, LLC | Reduced conductivity and unique electromagnetic signature zinc alloy |
US20160168664A1 (en) * | 2013-08-27 | 2016-06-16 | The United States Playing Card Company | Reduced Conductivity and Unique Electro-Magnetic Signature Zinc Alloy |
EP3039165A1 (en) * | 2013-08-27 | 2016-07-06 | Jarden Zinc Products, LLC | Reduced conductivity and unique electromagnetic signature zinc alloy |
EP3039165A4 (en) * | 2013-08-27 | 2017-08-23 | Jarden Zinc Products, LLC | Reduced conductivity and unique electromagnetic signature zinc alloy |
US10926312B2 (en) | 2013-12-20 | 2021-02-23 | Artazn Llc. | Nickel plated zinc alloys for coinage |
WO2015192279A1 (en) * | 2014-06-17 | 2015-12-23 | 宁波博威合金材料股份有限公司 | High-strength creep-resistant low-copper alloy material and application thereof |
CN108165797A (en) * | 2017-12-27 | 2018-06-15 | 洛阳神佳窑业有限公司 | A kind of preparation method of Zn-base alloy |
CN115874084A (en) * | 2022-12-23 | 2023-03-31 | 北京大学 | Zn-Li series creep-resistant zinc alloy and preparation method and application thereof |
CN115874084B (en) * | 2022-12-23 | 2024-02-06 | 北京大学 | Zn-Li creep-resistant zinc alloy and preparation method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
JPH1161299A (en) | 1999-03-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5855697A (en) | Magnesium alloy having superior elevated-temperature properties and die castability | |
AU2006246965B2 (en) | Aluminium alloy | |
JP4204650B2 (en) | High strength heat-resistant zinc alloy and molded product | |
CN102994835A (en) | Heatproof magnesium alloy | |
EP1308531B1 (en) | High strength and creep resistant magnesium alloys | |
US6342180B1 (en) | Magnesium-based casting alloys having improved elevated temperature properties | |
EP1967600B1 (en) | Creep-resistant magnesium alloy for casting | |
EP0899349A1 (en) | Heat-resistant zinc alloy and molded article thereof | |
JP4526768B2 (en) | Magnesium alloy | |
US7169240B2 (en) | Creep resistant magnesium alloys with improved castability | |
CN102994840A (en) | MgAlZn heat resistance magnesium alloy | |
JP4526769B2 (en) | Magnesium alloy | |
AU601939B2 (en) | Hot working aluminium-base alloys | |
US4919736A (en) | Aluminum alloy for abrasion resistant die castings | |
US3718460A (en) | Mg-Al-Si ALLOY | |
KR100343309B1 (en) | Hot chamber castable zinc alloy | |
JP7475330B2 (en) | Heat-resistant magnesium alloy for casting | |
JPH0941057A (en) | Zinc alloy for thixocasting and injection molding | |
JPH09272932A (en) | Heat resistant zinc alloy for die casting and die-cast parts using the same | |
US20230043878A1 (en) | Cast Alloy | |
Radtke | New Alloys and Plating Systems Through Zinc Research | |
JP2001316746A (en) | Aluminum alloy having high strength, wear resistance and slidability |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
AKX | Designation fees paid | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19990904 |