EP3638820A1 - Monotektische aluminium-gleitlagerlegierung und verfahren zu seiner herstellung und damit hergestelltes gleitlager - Google Patents
Monotektische aluminium-gleitlagerlegierung und verfahren zu seiner herstellung und damit hergestelltes gleitlagerInfo
- Publication number
- EP3638820A1 EP3638820A1 EP18730218.7A EP18730218A EP3638820A1 EP 3638820 A1 EP3638820 A1 EP 3638820A1 EP 18730218 A EP18730218 A EP 18730218A EP 3638820 A1 EP3638820 A1 EP 3638820A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alloy
- plain bearing
- aluminum
- bismuth
- weight
- 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- Withdrawn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
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 49
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000001996 bearing alloy Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title description 14
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 55
- 239000000956 alloy Substances 0.000 claims abstract description 55
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 46
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 29
- 239000010949 copper Substances 0.000 claims abstract description 23
- 239000010703 silicon Substances 0.000 claims abstract description 23
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 23
- 239000010936 titanium Substances 0.000 claims abstract description 23
- 239000011701 zinc Substances 0.000 claims abstract description 23
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 22
- 229910052802 copper Inorganic materials 0.000 claims abstract description 21
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 20
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 18
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000005275 alloying Methods 0.000 claims abstract description 16
- 229910052796 boron Inorganic materials 0.000 claims abstract description 12
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 14
- 238000007670 refining Methods 0.000 claims description 14
- 229910052718 tin Inorganic materials 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 12
- 229910052748 manganese Inorganic materials 0.000 claims description 11
- 239000011572 manganese Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 9
- 239000011651 chromium Substances 0.000 claims description 9
- 229910052720 vanadium Inorganic materials 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000009749 continuous casting Methods 0.000 claims description 8
- 229910052758 niobium Inorganic materials 0.000 claims description 8
- 239000010955 niobium Substances 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910052787 antimony Inorganic materials 0.000 claims description 6
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 6
- 229910052706 scandium Inorganic materials 0.000 claims description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- 239000010941 cobalt Substances 0.000 claims description 5
- 229910017052 cobalt Inorganic materials 0.000 claims description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- 229910052715 tantalum Inorganic materials 0.000 claims description 5
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052735 hafnium Inorganic materials 0.000 claims description 4
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 239000011265 semifinished product Substances 0.000 claims description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract description 11
- 239000000463 material Substances 0.000 description 18
- 230000015572 biosynthetic process Effects 0.000 description 16
- 238000012856 packing Methods 0.000 description 15
- 229910052749 magnesium Inorganic materials 0.000 description 14
- 239000011777 magnesium Substances 0.000 description 14
- 238000009826 distribution Methods 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 9
- 229910000838 Al alloy Inorganic materials 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 8
- 238000007792 addition Methods 0.000 description 8
- 238000002425 crystallisation Methods 0.000 description 8
- 230000008025 crystallization Effects 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000004781 supercooling Methods 0.000 description 8
- 239000013078 crystal Substances 0.000 description 7
- 239000000155 melt Substances 0.000 description 7
- 238000007711 solidification Methods 0.000 description 7
- 230000008023 solidification Effects 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 239000005300 metallic glass Substances 0.000 description 6
- 238000007747 plating Methods 0.000 description 6
- 230000009466 transformation Effects 0.000 description 5
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000005253 cladding Methods 0.000 description 4
- 230000005496 eutectics Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 238000000844 transformation Methods 0.000 description 4
- -1 aluminum-silicon-bismuth Chemical compound 0.000 description 3
- 229910052738 indium Inorganic materials 0.000 description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000006911 nucleation Effects 0.000 description 3
- 238000010899 nucleation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000012791 sliding layer Substances 0.000 description 3
- YVIMHTIMVIIXBQ-UHFFFAOYSA-N [SnH3][Al] Chemical compound [SnH3][Al] YVIMHTIMVIIXBQ-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000002318 adhesion promoter Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002631 hypothermal effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000010534 mechanism of action Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- 229910001152 Bi alloy Inorganic materials 0.000 description 1
- 229910020054 Mg3Bi2 Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000006023 eutectic alloy Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000006025 fining agent Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F16C33/122—Multilayer structures of sleeves, washers or liners
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/003—Alloys based on aluminium containing at least 2.6% of one or more of the elements: tin, lead, antimony, bismuth, cadmium, and titanium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/053—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/057—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/02—Sliding-contact bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
- F16C25/02—Sliding-contact bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/02—Sliding-contact bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2204/00—Metallic materials; Alloys
- F16C2204/20—Alloys based on aluminium
Definitions
- the invention relates to a monotectic aluminum sliding bearing alloy with bismuth inclusions, which is suitable for plastic deformation.
- the invention further relates to a process for producing a monotectic aluminum sliding bearing alloy with bismuth inclusions.
- the invention further relates to a slide bearing made with the sliding bearing alloy.
- Highly stressed plain bearings are constructed of several layers to meet the variety of requirements placed on the bearings and partly contradictory. There are often used steel-aluminum composites.
- the sliding bearing materials While the steel support shell ensures the absorption of the mechanical stress and the tight fit, the sliding bearing materials must withstand the manifold tribological stresses and be fatigue-proof. To meet this requirement, the sliding bearing materials in the aluminum matrix on the one hand contain hard phases, such as silicon and intermetallic precipitates, and on the other soft phases, such as lead or tin. Heavy-duty multilayer plain bearings often additionally have a sliding layer applied galvanically on the functional layer. This soft sliding layer ensures the good emergency running properties of the bearing. It can embed abrasion particles and thus remove from the sliding surface.
- an aluminum alloy comprises one or more of the components 1 to 50% by weight, preferably 5 to 30% by weight lead, 3 to 50% by weight, preferably 5 to 30% by weight.
- This alloy known from DE 4003018 A1 is cast in continuous casting vertically to a strip or wire of thickness 5 to 20 mm or diameter, the melt being cast at a cooling rate of 300 to 1500 K / s. Due to the rapid cooling rate, it is intended to prevent large-volume precipitations of a minority phase from being formed in the period between when the demixing temperature has fallen below and after complete solidification of the matrix metal. From the practice of continuous casting of aluminum alloys, however, it is known that, as a result of the very high cooling rates, there is a considerable risk of crack formation and the process stability required for series production is difficult to ensure.
- a cast aluminum difficult to control monotectic aluminum sliding bearing alloy with up to 15 wt .-% bismuth and with at least one element selected from the group silicon, tin, lead in total from 0.5 to 15 wt .-% and possible additions from the group copper, manganese, magnesium, nickel, chromium, zinc and antimony in a a total of up to 3% in reproducible quality by casting tapes.
- a homogeneous distribution of the minority phase is achieved in this case by intensive stirring of the melt in the electromagnetic field.
- grain refining agents moreover, the texture of this alloy is strained.
- EP 0 190 691 A1 discloses an alloy with 4 to 7% by weight bismuth, 1 to 4.5% by weight silicon, 0 to 1, 7% by weight copper, 0 to 2.5% by weight.
- % Lead and at least one element from the group nickel, manganese, chromium in a total amount of up to 1% and additionally at least one element from the group tin, zinc, antimony of a total of up to 5 wt .-% known.
- high silicon contents reinforce the aluminum matrix, they have a negative influence on the size of the minority phase and lead to a significant worsening of the droplet distribution in the strand.
- the originally spherical lead or bismuth phase is deformed into very thick threads, which considerably reduce the mechanical strength and the tribological properties of the material.
- One possible solution for setting the desired material properties is the transformation of the elongated precipitates of the minority phase into compact structural forms by a subsequent heat treatment.
- a monotectic aluminum-silicon-bismuth alloy is heat-treated at temperatures of 575 ° C. to 585 ° C. in order to achieve a fine distribution of the bismuth phase stretched in the form of a plate after rolling.
- the heat treatment offers the possibility of improving the strength values of the aluminum sliding bearing alloy by means of hardening effects.
- the elements suitable for achieving the possible curing effects are, for example, silicon, magnesium, zinc and zirconium.
- the addition of copper increases the cure rate and can be used in combination with these elements. From US Pat. No. 5,286,445 an aluminum sliding bearing alloy with a bismuth content of 2 to 15% by weight, 0.05 to 1% by weight of zirconium and a copper content and / or magnesium content of up to 1.5% is known.
- this alloy contains at least one element from the group of tin, lead and indium in the sum of 0.05 to 2 wt .-% or at least one element selected from the group silicon, manganese, vanadium, antimony, niobium, molybdenum, cobalt, iron, Titanium, chromium in the sum of 0.05 to 5 wt .-%.
- tin, lead and indium support the re-coagulation of stretched bismuth drops to finer precipitates at temperatures of 200 ° C to 350 ° C.
- the elements zirconium, silicon and magnesium cause the actual hardening effect after annealing in the temperature range 480 ° C to 525 ° C, which is carried out according to US 5,286,445 shortly before the Walzplattiervorgang.
- the transition elements should ensure an additional increase in the mechanical strength of the material.
- magnesium with bismuth preferably forms the intermetallic compound Mg3Bi2. This deposits itself in the bismuth drops and significantly reduces the embedding capacity of the bismuth drops for abrasion particles. By adding tin, the mechanical strength of the sliding bearing material is significantly impaired at higher temperatures.
- the heat treatment temperatures proposed in DE 4014430 A1 and in US Pat. No. 5,286,445 lead above 480 ° C., leading to the formation of brittle intermetallic phases between the steel support shell and the aluminum.
- the bismuth-containing alloys described above have all been of no practical significance, since the complex processes occurring during their production by continuous casting and subsequent further processing to the sliding bearing shell have not been sufficiently controlled to date.
- the prerequisite for an optimum property profile of the aluminum sliding bearing alloys is the possibility of being able to maintain a fine distribution of the minority phase even after the necessary forming and roll cladding processes.
- Other requirements are high strength, mechanical strength - including at high temperatures - wear resistance of the aluminum matrix and a good formability.
- the invention is therefore based on the object by appropriate combination of alloying elements to form an alloy which is characterized by a specific ultrafine-grained microstructure with small bismuth inclusions and makes it possible to achieve a uniform and fine distribution of the bismuth phase and this during subsequent processing the bands, for example, in the manufacturing phase to a plain bearing shell to maintain.
- a monotectic aluminum sliding bearing alloy with bismuth inclusions which consists of 1 to 20 wt.% Bismuth, at least one element selected from 0.05 to 7 wt.% Copper, 0.05 to 15 wt.% Silicon , 0.05 to 5 wt.% Of manganese and 0.05 to 5 wt.% Of zinc as the main alloying elements and 0.005 to 0.4 wt.% Of titanium, 0.005 to 0.7 wt.% Of zirconium and 0.001 to 0.1 wt. % Boron as additional elements and optionally one or more additional elements, balance aluminum.
- the aluminum plain bearing alloy according to the invention is ultrafine-grained and has a uniform and fine distribution of the bismuth phase. It has improved technological properties, such as rolling, weldability with steel and fatigue strength of the plain bearing metal. These properties are achieved by the peculiarities of the interaction of aluminum with manganese, silicon, zinc and / or copper as well as the combination of titanium, zirconium and boron in the liquid state and in the process of crystallization.
- the combination of the additional elements titanium, zirconium and boron surprisingly brings about the ultrafine-grained structure which is also retained in a subsequent post-processing.
- the combination of said additional alloy element leads in one Aluminum bismuth manganese (copper, silicon or zinc) Alloy to form a specific ultrafine-grained microstructure of approximately 100 to 20 pm with small bismuth inclusions of 50 to 1 pm.
- This structure is suitable for a high degree of plastic deformation.
- the alloy of the present invention exhibits a behavior resembling superplastic behavior and ensuring increased mechanical and tribological properties, namely good fatigue behavior, low scuffing limit, low relative wear, and high specific bearing capacity.
- the combination of titanium, zirconium and boron causes the grain refining of aluminum alloys containing copper, zinc, silicon or manganese or a combination of these elements as main alloying elements.
- the plain bearing alloy according to the invention has superplastic properties. Superplastic properties of aluminum alloy are known in principle.
- EP 0 297 035 B1 discloses that alloys containing 0.8-2.5% Si, 3.5-6.0% Mg, 0.1-0.6% Mn, 0.05-0.5% Zr, max. 6.0% Zn, max. 3.0% Cu, 0.3% Si, 0.05% Ti, 0.05% Cr, balance aluminum are suitable for superplastic formability.
- WO / 1983/001629 shows a superplastic aluminum alloy plate containing 1, 5 to 9.0% magnesium, 0.5 to 5.0% silicon, 0.05 to 1, 2% manganese, 0.05 to 0.3% Chromium and the balance of aluminum, and a method for producing a superplastic aluminum alloy plate by continuously casting a molten aluminum alloy containing 1, 5 to 9.0% magnesium, 0.5 to 5.0% silicon, 0.05 to 1, 2% manganese and 0.05 to 0.3% chromium to form a 3 to 20 mm thick strip, which is subjected to homogenization.
- Grain boundary slip (grain shape is retained (model: oily sand), rotation and displacement of individual grains)
- Dynamic recovery process recovery process, such as the transverse sliding of screw dislocations.
- the present invention is based on the finding that the combination of the additional elements titanium, zirconium and boron leads to an ultrafine-grained, superplastic-like monotectic aluminum sliding bearing alloy with small bismuth inclusions, which is suitable for highly plastic deformation.
- an increase in elemental concentrations above 7 wt% for copper or zinc, above 15 wt% for silicon, and above 3 wt% for manganese leads to coarsening of the structure and deterioration of alloy properties.
- the content of zinc is preferably up to 2.5% by weight, preferably between 0.5 and 2% by weight.
- the content of silicon is preferably between 1, 2 and 15 wt.%, With particular preference, the proportions 1, 5 to 5 wt.% And 10 to 15 wt.% Are.
- the ratio of atomic radii is
- MnTomradius / AlAtomradius 0.8881 [D.B. Miracle, Candidate Atomic Cluster Configurations in Metallic Glass Structures. Materials Transactions, Vol. 47, no. 7 (2006) pp. 1737 to 1742].
- manganese, copper and zinc, zirconium and titanium lead to the formation of particularly dense and stable clusters with aluminum with the coordination number 12, which can be decahedral, icosahedral or octahedral, FCC (face centered) or cuboctahedral.
- the decahedral or icosahedral packing on the one hand and the solid body on the other hand have distinctly different packings.
- Increasing the packing density under strong supercooling inhibits the diffusion of the atoms for crystallization and for other phase transformations.
- the melt In the case of large supercooling, the melt has a large excess of free energy which the system can use for multiple solidification paths far out of equilibrium in multiple metastable phases.
- metastable solids can arise, which may consist of supersaturated mixed phases, grain-fined alloys, disordered superlattice structures, metastable crystallographic phases.
- the grain refining achieved by the clustering leads to a change in the morphology from a coarse-grained dendritic structure to an equiaxial grain-fined microstructure with a typical grain size smaller than 100 micrometers. This also leads to a substantial refining of a bismuth phase to the average size of 20 microns.
- bismuth serves as the sole soft phase, d. H. There is no combination of bismuth with lead and / or tin for this purpose. Lead and / or tin should not occur in the plain bearing alloy according to the invention or at most in small amounts with a total content of less than 0.5% by weight.
- Group 1 The eligible additional alloying elements are subdivided into five groups: Group 1:
- Nickel, cobalt, iron, chromium with a total content of at most 1% by weight.
- Tin, lead with a total content of max. 0.5% by weight.
- lower limits are in each case 0.001% by weight, ie essentially the limit of detectability.
- the additional alloying elements of group 1 show two mechanisms of action. These mechanisms are generally simultaneous, but in some cases one is dominated by the other.
- the elements tantalum, niobium, hafnium, vanadium, tungsten, molybdenum, antimony, scandium, cerium have a larger or at least not significantly smaller atomic radius than aluminum and lead to the formation of particularly dense and stable clusters of the coordination number 12 - decahedral or octahedral and cuboctahedral clusters ,
- the decahedral packing on the one hand and the solid body on the other hand have significantly different packings. Increasing the packing density under strong supercooling inhibits the diffusion of the atoms for crystallization and for other phase transformations.
- metastable solids can arise, which may consist of supersaturated mixed phases, grain-fined alloys, disordered superlattice structures, metastable crystallographic phases.
- the grain refining achieved by the clustering leads to a change in the morphology from a coarse-grained dendritic structure to an equiaxial grain-fined microstructure with a typical grain size smaller than 100 micrometers. This also leads to a substantial refining of the bismuth phase to the average size of 20 microns.
- the elements tantalum, niobium, hafnium, vanadium, tungsten, molybdenum, scandium react peritectically with aluminum and lead to the formation of additional crystal nuclei from an AlxM1 phase, where M1 is one of the metals mentioned.
- the additional crystallization nuclei lead to the refining of the matrix ( ⁇ ). This also leads to a refining of the bismuth phase to the average size of 40 microns.
- the additional nuclei may be AbV, AbNb, AbTa phase type. Nucleation grain morphology changes from a coarse grained dendritic texture to a fine grained dendritic texture with a typical grain size greater than 100 microns.
- the bismuth phase is coarsened to a grain size of 100 microns. Since the increase in the AWV11 phase can also lead to a decrease in the plasticity and coarsening of the bismuth phase, the sum fraction (total proportion) should be limited to 0.5% by weight at the top.
- Sc, Hf, Nb, Zr, Ti, V, Mn form supersaturated ⁇ -mixed crystals, especially at high solidification rates.
- the solute Sc, Zr, Ti, V, Mn is targeted as a secondary AbXYZ, where XYZ - Sc, Hf, Nb, Zr, Ti, V, such as: Ab (Sc, Zr) or Ab (Ti , Zr) Ali2Mn2CU nanophases.
- the high density of these nano-structured phases leads to significant increases in strength combined with high toughness.
- These nano-structured phases inhibit the recrystallization process and lead to the formation and maintenance of ultrafine grain structures.
- the additional alloy elements of group 2 namely nickel, cobalt, iron, chromium, which have a much smaller atomic radius than aluminum, lead to the formation of particularly dense and stable clusters of the coordination numbers 12, 1 1, 10, 9 of icosahedral cluster type, with aluminum a eutectic Show conversion.
- the additional alloying elements of group 2 namely silicon, zinc, copper, nickel, cobalt, iron, chromium form the eutectic e with aluminum (aAI + Al x M2 y ), where M2 is one of the elements from this group.
- the eutectic thus consists of two phases, namely ⁇ -mixed crystal and the intermetallic phase Al x M2 y .
- metastable solids can form, which may consist of supersaturated mixed phases, grain-fined alloys, disordered superlattice structures, metastable crystallographic phases. This leads to a considerable hardening of the alloy. Since a high proportion of eutectic can contribute to the reduction of plasticity, the sum fraction should be limited to 1, 0 wt.% Upwards.
- These additional nucleation nuclei may be AITiC, AITiB, TaC, TiC phase. Since the increase of said phases can reduce the plasticity, the total content of these alloying elements is limited upwards by 0.1% by weight.
- the additional alloy elements of group 4 namely silver, germanium, lithium are soluble in the aluminum matrix and form ⁇ -mixed crystals. As a result, the solid solution hardening is effected.
- the total amount should be limited to 1, 0 wt.%. It has been found that the addition of titanium and boron can also be effected by the use of the commercial grain refining agent ⁇ 5 ⁇ 1 or AITi3C0.15 in addition amounts of about 0.3 to 2% by weight. As a result, a strong grain-fine effect is exerted on the alloy according to the invention and the formation of hot cracks during continuous casting at different cooling rates is reliably prevented.
- the addition of the mentioned grain refining agent also causes a significant reduction in the size of the minority phase. The maximum diameter of the bismuth drops could be reduced to less than 30 microns by using grain refining additives in the cast state even at relatively low cooling rates of about 5 K / s.
- the invention further comprises a method for producing an aluminum sliding bearing alloy using the composition according to the invention as described above.
- the alloying components are combined in a casting process to form an alloy in which the cooling rate is 5 to 300 K / s.
- the cooling rate can be increased up to 1000 K / s with the addition of the above-mentioned grain refining agents.
- the alloy can also be produced by other customary production methods, in particular by other casting methods.
- production by continuous casting is preferred.
- the conditions are then adapted so that preferably drop-shaped Bismuteinlagerungen arise.
- the take-off speed is preferably 2 to 15 mm / s.
- the alloy obtained by casting is subjected to at least one heat treatment at temperatures between about 230 and 400 ° C in the course of subsequent forming processes according to the preferred embodiment of this invention.
- Such heat treatment preferably follows a rolling and / or roll cladding operation whereby multiple rolling and / or plating operations may be performed within the manufacturing process between the casting of the alloy and the final product and at least one heat treatment at the final rolling and / or roll cladding operation or connect to several or all of these operations.
- the cast alloy can be provided with at least one support layer.
- the support layer may in particular be a steel layer. Further layers, eg adhesion promoter layers or coatings can be added.
- the invention further comprises a sliding bearing shell which contains or consists of an alloy according to the invention as one of the materials used therein.
- the invention comprises a sliding bearing with such a plain bearing shell or the use of the alloy according to the invention in a plain bearing.
- the sliding bearing material cast strips with a cross section of 10 mm x130 mm are produced in this example on a continuous casting plant.
- the take-off speed is 8 mm / s and the cooling rate is 100 K / s.
- the strands are milled horizontally on the broad sides to a thickness of about 8 mm.
- a brushed and degreased adhesion promoter from an aluminum alloy with the first roll pass on the also brushed and degreased
- AIBi7Mn1 4CuO, 5TiO, 15Zr0.3B0.005-AIBi7Mn2.3Cu1, 6CrO, 35TiO, 15ZrO, 15B0.003-,
- AISi1 1 Bi7Cu0,5Ti0, 17Zr0,22B0,009 alloy in the rolling mill stand In order to improve the plating capability of the aluminum bearing strip, it is subjected to a 370 ° C recovery anneal for up to 3 hours. The thickness of the plated starting material strip is 4 mm. This is then rolled to 1, 3 mm in only one roll pass and connected to steel strip on a plating mill.
- the produced material compound is subjected to a 3 hour heat treatment at a temperature of 360 ° C, wherein the bond between the steel and the aluminum bearing material is increased by a diffusion process and after plating in the aluminum-zinc-copper Matrix strongly stretched bismuth threads are predominantly remodeled to fine up to 20 pm large spherical drops.
- the also resulting from the heat treatment high hardness of at least
- the plated strip can be divided and formed into bearing shells.
- AISi1 1 Bi7Cu0,5Ti0, 17Zr0,22B0,009 shows that the developed alloys have the higher technological and mechanical properties.
- Table 1 Comparison of the technological and mechanical properties (Table 1) of the alloy AIZn5Cu3Bi7 alloy according to WO2006131 129A1 and the developed alloys Alloy hardness 2.5 / 62.5 / 30 after necessary rolling passes
- AIBi7Mn1 4Cu0,5Ti0,15Zr0,3B0, 55 1
- the plain bearing alloy according to the invention is preferably continuously cast and characterized in the cast already by a fine distribution of the bismuth phase, which is largely independent of the withdrawal and cooling rate.
- long bismuth plates may subsequently be completely re-coagulated by heat treatment at temperatures of 270 ° C to 400 ° C to finely divided spherical droplets, which are present at a corresponding process control less than 20 pm.
- the alloy contains between about 7 and 12 weight percent bismuth.
- the proportion of manganese is between 1 and 5 wt .-%, in particular between about 1, 3 and 4.5 wt .-%.
- the proportions of the different elements are independently variable within the given limits.
- the attached microstructures illustrate the structure of embodiments.
- Figures 1 and 2 show the structure of AIBi7Mn1, 4Cu0.5Ti0.15Zr0.3B0.005 and AIBi7Mn2.3Cu1, 6Cr0.35Ti0, 15Zr0, 15B0.003 alloys after casting and after plating on steel strip. Dark is the bismuth phase.
- Figure 3 shows the microstructure of the AIBi7Mn1, 4CuO, 5TiO, 15Zr0.3B0.005 alloy (etched) plated on steel strip.
- FIG. 4 shows the microstructure of the AlSil 1 Bi7CuO, 5TiO, 17ZrO, 22BO, 009-l-alloy (etched). It should be noted that the examples are illustrative only and not limiting of the invention. The person skilled in the art also knows how slide bearings and bearing shells are produced and how, thus, the production of the alloy according to the invention can be included in the usual bearing manufacturing processes.
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Abstract
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CN111057911A (zh) * | 2020-01-06 | 2020-04-24 | 高品质特殊钢冶金与制备国家重点实验室张家港产业中心 | 一种Al-Bi偏晶合金及其制备方法 |
CN112643021B (zh) * | 2020-12-09 | 2022-06-21 | 暨南大学 | 一种激光选区熔化成形高强高耐蚀铜基偏晶合金的铜基复合粉末 |
CN112921203B (zh) * | 2021-01-25 | 2021-11-19 | 广东工程职业技术学院 | 一种再生铝合金的晶粒细化剂及其制备方法和应用 |
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US4590133A (en) | 1985-02-01 | 1986-05-20 | D.A.B. Industries | Bearing material |
JPS62235436A (ja) * | 1986-04-04 | 1987-10-15 | Showa Alum Corp | 軸受用アルミニウム合金押出材の製造方法 |
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