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US2870008A - Zinc-aluminium alloys and the method for producing same - Google Patents

Zinc-aluminium alloys and the method for producing same Download PDF

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Publication number
US2870008A
US2870008A US547045A US54704555A US2870008A US 2870008 A US2870008 A US 2870008A US 547045 A US547045 A US 547045A US 54704555 A US54704555 A US 54704555A US 2870008 A US2870008 A US 2870008A
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Prior art keywords
zinc
alloy
aluminium
alloys
resistant
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US547045A
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Neu Willi
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Main Alloy Co Establishment
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Main Alloy Co Establishment
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Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/02Alloys based on aluminium with silicon as the next major constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C18/00Alloys based on zinc
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C20/00Alloys based on cadmium

Definitions

  • the present invention relates to zinc-aluminium alloys and the production thereof.
  • the silicon may be'chosen from the ranges 0.15 to 1.5
  • the zinc content is from 38 to 60% and the aluminium content from 60% to 38%.
  • the zinc content is always'above"- 28% save where the copper content is tent iseve'n-then at least
  • the alloy may include nickel, chromium, magnesium, boron, tungsten or titanium up to 6%..
  • Alloys according to the present invention consist essentially of from 20% to 75% of aluminium, from 0.15% to 16% ofsilicon, from traces up to 10% of beryllium and zinc, the content of zinc being at least 20%.
  • Corrosion-resistant bearings for ball tearmgs.
  • the zinc and aluminium may form the initial melt and the other elements be added thereto, either as free elements or as key alloys or chemical compounds.
  • Certain of the elements and particularly the optional elements, notable calcium, sodium or strontium, may be added in hereof is intended to mean that the alloy may include one the form of hydrides of the metals.
  • the silicon may be wholly or in part replaced by phosphorus or one or more other nonmetals, e. g., carbon (preferably in the form of graphite).
  • the improved alloy has good acid-resisting and alkali in known small quantities in connection with zincresisting properties and is particularly suitable when a aluminium alloys, save that the sum of the said optional elements does not exceed 6%, and save that preferably light-weight alloy is required which shall have these properties.
  • the alloy may be employed in the construction of pumps .or .partsof pumps, especially .for pumping acids or alkalis, and for such and other purposes may replace steel, cast iron and bronzeswith advantage.
  • the alloy may be employed advantageously for bearings, bearing linings, and sliding, e. g., reciprocating, parts. It can be used as a key alloy or for workpieces, of various kinds and can be produced in sheetor wire form.
  • the melt may be cast by conventional methods in sand or chill moulds, or ;a :bar-or ingot may. bepartiallylchillcast .or semi-chill-cast, ve. g., the molten alloy material maybe caused to run down :directly from .a sand mould into a metal mould which is chilled sothat a baror ingot is formed which is contained partly .in the .metalmould and partlyin the sand mould soaszto cause aprogressively sive chilling from the bottom of thebar ,orjngot to the top, orin other'words, ,a-quickisolidification realised over the IOWCI'IBglOIISliH particularofthebaroringot.
  • T I IOWCI'IBglOIISliH particularofthebaroringot.
  • Alloys according to the invention are amenable .topressure casting, centrifugal casting rorvibration castirrg, v e. ,g,, 20
  • the mould may be subjected to ultra-sonic .osc'illation. High compression characteristics can thereby :be produced in the casting process.
  • the alloy may be made as a concentrate, e. g., with a high beryllium and silicon content, or beryllium-siliconcopper content, and diluted with aluminium a'n'dyzinc to form the required alloy.
  • The'alloy No. 14 of the foreging table is one suitable .example.
  • I Graphite may be added, e. g., to the zinc-aluminiumi H 4 What I claimis: 1.;An .alloy consisting essentially of from 20% to aluminium, from 0.15 to 16% silicon, from 0.005% up to 10% of beryllium, and zinc at least 38% 2. An alloy consisting essentially of aluminium at least 20%; silicon from 0.15% to 16%; beryllium from 0.005
  • An alloy consisting essentially of from 20% to aluminium, from 0.15% to 16% silicon, from 0.005% up to 10% beryllium, copper from 2.20 :to 8% .and zinc at least 20%.
  • composition according to claim 1 containing copperinthe range of ;05% 106%,.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)

Description

United Statesv ice.
. I 2,870,008 7 ZINC-ALUMINIUM'ALLOYS AND THE METHOD FOR PRODUCING SAME I l .1
Willi Neu, S aarbrucken, Saarlaud, "assignor to Main Alloy Company Establishment (Mace), Vaduz, Liechteustein I 4 No Drawing. Application November 15, 1955 p s n n 547,045
(Ilaims priority, application Great asis -November 18, 1954: s l
The present invention relates to zinc-aluminium alloys and the production thereof.
relatively high, viz'."from"2.20%' to 8%, but the zinc conasiaoos I: neither iron nor lead'is present except as an impurity. The silicon may be'chosen from the ranges 0.15 to 1.5
from more than 1.5% to 2.3% or from more than 2.3% to 16% and the beryllium from traccs up to 0.45 from more than 0.45% to 3.0% and from more than 3.0% to 10%. Copper is advantageously also present in an amount from 0.05 to 6%. i v I Preferably the zinc content is from 38 to 60% and the aluminium content from 60% to 38%. The zinc content is always'above"- 28% save where the copper content is tent iseve'n-then at least The alloy may include nickel, chromium, magnesium, boron, tungsten or titanium up to 6%.. v p 1 1 I l The following able lists a number'o'f alloys according to the invention and theirus I Be- -A1 zn 'ou s1" Nl Other ses metals Remainden- CA9 sacs Alloys according to the present invention consist essentially of from 20% to 75% of aluminium, from 0.15% to 16% ofsilicon, from traces up to 10% of beryllium and zinc, the content of zinc being at least 20%. The term consisting essentially of used herein and in the claims .Remainder..
can
Mg 0.01--. Casting and malleable alloys;
, corrosion-resistant bearings,
' cocks, possibly wires with subsequent treatment, good surface formation.
} Casting and malleable alloys,
corrosion-resistant bearings resistant to sea water, plates,
rapidly moving machine parts. Corrosion-resistant bearings, injection moulding, chill casting, cages for ball tearmgs.
Fine-grained, ductile, hard,
pressable, bars, plates, bearings, wire, corrosion-resistant 0 03 machine parts.
Castmgand malleable alloys, corrosion-resistant hearing and machine parts resistant to sea water.
Bearings, corrosion-resistant pump parts, parts resistant to weak organic and weak inorganic acids and bases.
}.....' 0.12 B0.15. Pressure-cast bearings, ('orroslon-resistant plates, electrical parts, wires.
} MG Concentrated a1l0ys,'bearings,
traces. key alloys for corrosionresistant machine and pump parts. 6.5 0.12 GB 0.6 Concentrated alloys for bear ings, key alloys for machine and pump parts, corrosionresistant and sea water resistant material. 0.33 Bars, sleeves, wires, rollers sheets. 0.65 0.06 Bars, sleeves, wire, bearings,
pump parts.
The zinc and aluminium may form the initial melt and the other elements be added thereto, either as free elements or as key alloys or chemical compounds. Certain of the elements and particularly the optional elements, notable calcium, sodium or strontium, may be added in hereof is intended to mean that the alloy may include one the form of hydrides of the metals.
or more of the following optional elements, viz., calcium, sodium, strontium, barium, cadmium, tin, vanadium, molybdenum, manganese, cerium, potassium and/ or incidental ingredients such as iron up to 3% which are used In preparing the melt, the silicon may be wholly or in part replaced by phosphorus or one or more other nonmetals, e. g., carbon (preferably in the form of graphite).
The improved alloy has good acid-resisting and alkali in known small quantities in connection with zincresisting properties and is particularly suitable when a aluminium alloys, save that the sum of the said optional elements does not exceed 6%, and save that preferably light-weight alloy is required which shall have these properties.
Patented Jan. 20, 1959 pump parts, rapidly moving The alloy may be employed in the construction of pumps .or .partsof pumps, especially .for pumping acids or alkalis, and for such and other purposes may replace steel, cast iron and bronzeswith advantage. The alloy may be employed advantageously for bearings, bearing linings, and sliding, e. g., reciprocating, parts. It can be used as a key alloy or for workpieces, of various kinds and can be produced in sheetor wire form.
The melt may be cast by conventional methods in sand or chill moulds, or ;a :bar-or ingot may. bepartiallylchillcast .or semi-chill-cast, ve. g., the molten alloy material maybe caused to run down :directly from .a sand mould into a metal mould which is chilled sothat a baror ingot is formed which is contained partly .in the .metalmould and partlyin the sand mould soaszto cause a progres sive chilling from the bottom of thebar ,orjngot to the top, orin other'words, ,a-quickisolidification realised over the IOWCI'IBglOIISliH particularofthebaroringot. T I
Alloys according to the invention are amenable .topressure casting, centrifugal casting rorvibration castirrg, v e. ,g,, 20
the mould may be subjected to ultra-sonic .osc'illation. High compression characteristics can thereby :be produced in the casting process.
The alloy may w ith advantage be used toreplace screwthreaded parts of steel, cast iron or=b r onze. l
The alloy may be made as a concentrate, e. g., with a high beryllium and silicon content, or beryllium-siliconcopper content, and diluted with aluminium a'n'dyzinc to form the required alloy. The'alloy No. 14 of the foreging table is one suitable .example.
melt, to promote the sliding propertiesofihealloy;
The percentages ,given herein and in the claims hereof are by-weight.
I Graphite may be added, e. g., to the zinc-aluminiumi H 4 What I claimis: 1.;An .alloy consisting essentially of from 20% to aluminium, from 0.15 to 16% silicon, from 0.005% up to 10% of beryllium, and zinc at least 38% 2. An alloy consisting essentially of aluminium at least 20%; silicon from 0.15% to 16%; beryllium from 0.005
to 10%; zinc at least 28%; copper from 0.05% to 6%,
iron 0% to 3.5% and not including lead save as an impurity.
3. An alloy consisting essentially of from 20% to aluminium, from 0.15% to 16% silicon, from 0.005% up to 10% beryllium, copper from 2.20 :to 8% .and zinc at least 20%.
4. .A composition according to claim 1, containing copperinthe range of ;05% 106%,.
' 5. An alloy consisting essentially 'of 0.50% berylluim, 26.5% aluminium, 0.55% copper, 0.45% silicon, traces of magnesium andthe'remaindenzinc.
References Cited in the file of this patent 'UNITElB STATES .PATENTS 1,879,748 Horsfield. Sept. 27, 1932 .EOREIGN PATIENTS 448,929 Great Britain June 17,, 1936 537,312 Great Britain June 17, 1941 638,733 Great Britain June 14, 1950 0,001,105 France Feb. 20, 1952 408,097 Italy Dec. 19, 1944 OTHER REFERENCES Ie'tferies: Aluminum Industry, pages 307-308, vol, II, McGraw-Hill, New York, N. Y., 31930,

Claims (1)

  1. 2. AN ALLOY CONSISTING ESSENTIALLY OF ALUMINIUM AT LEAST 20%; SILICON FROM 0.15% TO 16%; BERYLLIUM FROM 0.005% TO 10%; ZINC AT LEAST 28%; COPPER FROM 0.05% TO 6%, IRON 0% TO 3.5% AND NOT INCLUDING LEAD SAVE AS AN IMPURITY.
US547045A 1954-11-18 1955-11-15 Zinc-aluminium alloys and the method for producing same Expired - Lifetime US2870008A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137642A (en) * 1960-04-13 1964-06-16 Winthrop A Johns Method and means for protecting structures, machinery containers, etc. made of steel, copper, brass, bronze or similar materials against corrosion
US3343930A (en) * 1964-07-14 1967-09-26 Bethlehem Steel Corp Ferrous metal article coated with an aluminum zinc alloy
US3393089A (en) * 1964-07-14 1968-07-16 Bethlehem Steel Corp Method of forming improved zinc-aluminum coating on ferrous surfaces
US3773502A (en) * 1969-12-03 1973-11-20 Voest Ag Aluminum-zinc-alloy
US3790373A (en) * 1970-02-05 1974-02-05 Voest Ag Alloy on aluminum-zinc-basis
US3811177A (en) * 1969-12-15 1974-05-21 Vaw Ver Aluminium Werke Ag Process for brazing workpieces of aluminum containing material
US3952120A (en) * 1974-05-31 1976-04-20 Bethlehem Steel Corporation Aluminum-zinc coated low-alloy ferrous product and method
US4241148A (en) * 1969-12-15 1980-12-23 Vereinigte Aluminium-Werke Aktiengesellschaft Composite aluminum-containing workpieces
WO1996002682A1 (en) * 1994-07-18 1996-02-01 N.V. Union Miniere S.A. Hot chamber castable zinc alloy

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1879748A (en) * 1930-01-15 1932-09-27 Aluminum Co Of America Aluminum-silicon alloy
GB448929A (en) * 1934-11-17 1936-06-17 Tennyson Fraser Bradbury A new aluminium alloy
GB537312A (en) * 1940-02-21 1941-06-17 Alfred William Dinerman Improvements in or relating to aluminium zinc alloys
GB638733A (en) * 1947-04-10 1950-06-14 British Thomson Houston Co Ltd Improvements in and relating to zinc casting alloys
FR1001105A (en) * 1949-12-08 1952-02-20 Process for making zinc aluminum alloys with additions, such as si, ni, cr and other metals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1879748A (en) * 1930-01-15 1932-09-27 Aluminum Co Of America Aluminum-silicon alloy
GB448929A (en) * 1934-11-17 1936-06-17 Tennyson Fraser Bradbury A new aluminium alloy
GB537312A (en) * 1940-02-21 1941-06-17 Alfred William Dinerman Improvements in or relating to aluminium zinc alloys
GB638733A (en) * 1947-04-10 1950-06-14 British Thomson Houston Co Ltd Improvements in and relating to zinc casting alloys
FR1001105A (en) * 1949-12-08 1952-02-20 Process for making zinc aluminum alloys with additions, such as si, ni, cr and other metals

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137642A (en) * 1960-04-13 1964-06-16 Winthrop A Johns Method and means for protecting structures, machinery containers, etc. made of steel, copper, brass, bronze or similar materials against corrosion
US3343930A (en) * 1964-07-14 1967-09-26 Bethlehem Steel Corp Ferrous metal article coated with an aluminum zinc alloy
US3393089A (en) * 1964-07-14 1968-07-16 Bethlehem Steel Corp Method of forming improved zinc-aluminum coating on ferrous surfaces
US3773502A (en) * 1969-12-03 1973-11-20 Voest Ag Aluminum-zinc-alloy
US3811177A (en) * 1969-12-15 1974-05-21 Vaw Ver Aluminium Werke Ag Process for brazing workpieces of aluminum containing material
US4241148A (en) * 1969-12-15 1980-12-23 Vereinigte Aluminium-Werke Aktiengesellschaft Composite aluminum-containing workpieces
US3790373A (en) * 1970-02-05 1974-02-05 Voest Ag Alloy on aluminum-zinc-basis
US3952120A (en) * 1974-05-31 1976-04-20 Bethlehem Steel Corporation Aluminum-zinc coated low-alloy ferrous product and method
WO1996002682A1 (en) * 1994-07-18 1996-02-01 N.V. Union Miniere S.A. Hot chamber castable zinc alloy
BE1008479A3 (en) * 1994-07-18 1996-05-07 Union Miniere Sa Zinc alloy castable room hot.

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