JP5731170B2 - アルミニウム系材料を備えた摺動部用潤滑油組成物及び潤滑方法 - Google Patents
アルミニウム系材料を備えた摺動部用潤滑油組成物及び潤滑方法 Download PDFInfo
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- JP5731170B2 JP5731170B2 JP2010259584A JP2010259584A JP5731170B2 JP 5731170 B2 JP5731170 B2 JP 5731170B2 JP 2010259584 A JP2010259584 A JP 2010259584A JP 2010259584 A JP2010259584 A JP 2010259584A JP 5731170 B2 JP5731170 B2 JP 5731170B2
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- Prior art keywords
- lubricating oil
- lubricating
- molybdenum
- oil composition
- carbon atoms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000203 mixture Substances 0.000 title claims description 70
- 239000010687 lubricating oil Substances 0.000 title claims description 61
- 229910052782 aluminium Inorganic materials 0.000 title claims description 38
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 38
- 230000001050 lubricating effect Effects 0.000 title claims description 31
- 239000000463 material Substances 0.000 title claims description 30
- 238000000034 method Methods 0.000 title claims description 10
- -1 carboxylic acid compound Chemical class 0.000 claims description 87
- 125000004432 carbon atom Chemical group C* 0.000 claims description 60
- 229910052698 phosphorus Inorganic materials 0.000 claims description 37
- 239000011574 phosphorus Substances 0.000 claims description 37
- 239000002199 base oil Substances 0.000 claims description 33
- 229910052751 metal Chemical class 0.000 claims description 27
- 239000002184 metal Chemical class 0.000 claims description 27
- 150000003839 salts Chemical class 0.000 claims description 26
- 150000001875 compounds Chemical class 0.000 claims description 23
- 229910052717 sulfur Inorganic materials 0.000 claims description 21
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 19
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 15
- 239000005078 molybdenum compound Substances 0.000 claims description 14
- 150000002752 molybdenum compounds Chemical class 0.000 claims description 14
- 238000002485 combustion reaction Methods 0.000 claims description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 10
- 229910052725 zinc Inorganic materials 0.000 claims description 10
- 239000011701 zinc Substances 0.000 claims description 10
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims description 9
- 239000011733 molybdenum Substances 0.000 claims description 9
- 125000004434 sulfur atom Chemical group 0.000 claims description 9
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 8
- KHYKFSXXGRUKRE-UHFFFAOYSA-J molybdenum(4+) tetracarbamodithioate Chemical compound C(N)([S-])=S.[Mo+4].C(N)([S-])=S.C(N)([S-])=S.C(N)([S-])=S KHYKFSXXGRUKRE-UHFFFAOYSA-J 0.000 claims description 6
- 125000005702 oxyalkylene group Chemical group 0.000 claims description 4
- RYYWUUFWQRZTIU-UHFFFAOYSA-N Thiophosphoric acid Chemical compound OP(O)(S)=O RYYWUUFWQRZTIU-UHFFFAOYSA-N 0.000 claims description 3
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 3
- 229910019142 PO4 Inorganic materials 0.000 claims 2
- 239000010452 phosphate Substances 0.000 claims 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 description 49
- 150000002430 hydrocarbons Chemical group 0.000 description 26
- 125000003342 alkenyl group Chemical group 0.000 description 19
- 125000003118 aryl group Chemical group 0.000 description 16
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 13
- 239000011593 sulfur Substances 0.000 description 13
- 239000002585 base Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 11
- 239000003921 oil Substances 0.000 description 11
- 239000003963 antioxidant agent Substances 0.000 description 10
- 239000003599 detergent Substances 0.000 description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 9
- 239000000654 additive Substances 0.000 description 9
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 9
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 9
- 239000011575 calcium Substances 0.000 description 9
- 229910052791 calcium Inorganic materials 0.000 description 9
- 230000001603 reducing effect Effects 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 239000002253 acid Substances 0.000 description 7
- 150000001342 alkaline earth metals Chemical class 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000002270 dispersing agent Substances 0.000 description 7
- 229960002317 succinimide Drugs 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 229910052783 alkali metal Inorganic materials 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 150000004678 hydrides Chemical class 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 6
- 239000003112 inhibitor Substances 0.000 description 6
- 239000002480 mineral oil Substances 0.000 description 6
- 235000010446 mineral oil Nutrition 0.000 description 6
- 239000003607 modifier Substances 0.000 description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 5
- 230000003078 antioxidant effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 5
- 150000005690 diesters Chemical class 0.000 description 5
- 239000012990 dithiocarbamate Substances 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 5
- 150000002751 molybdenum Chemical class 0.000 description 5
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 description 5
- 150000007524 organic acids Chemical class 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 description 5
- 239000001993 wax Substances 0.000 description 5
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- XYRMLECORMNZEY-UHFFFAOYSA-B [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S Chemical compound [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S XYRMLECORMNZEY-UHFFFAOYSA-B 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- 125000002877 alkyl aryl group Chemical group 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 150000001639 boron compounds Chemical class 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- NAGJZTKCGNOGPW-UHFFFAOYSA-N dithiophosphoric acid Chemical compound OP(O)(S)=S NAGJZTKCGNOGPW-UHFFFAOYSA-N 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 150000003018 phosphorus compounds Chemical class 0.000 description 4
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 4
- 150000003464 sulfur compounds Chemical class 0.000 description 4
- 239000004711 α-olefin Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 125000005037 alkyl phenyl group Chemical group 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 125000003710 aryl alkyl group Chemical group 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 125000000753 cycloalkyl group Chemical group 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000006078 metal deactivator Substances 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002530 phenolic antioxidant Substances 0.000 description 3
- 229920013639 polyalphaolefin Polymers 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 3
- 229960001860 salicylate Drugs 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 3
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 3
- 150000005691 triesters Chemical class 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- BVUXDWXKPROUDO-UHFFFAOYSA-N 2,6-di-tert-butyl-4-ethylphenol Chemical compound CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 BVUXDWXKPROUDO-UHFFFAOYSA-N 0.000 description 2
- SZAQZZKNQILGPU-UHFFFAOYSA-N 2-[1-(2-hydroxy-3,5-dimethylphenyl)-2-methylpropyl]-4,6-dimethylphenol Chemical compound C=1C(C)=CC(C)=C(O)C=1C(C(C)C)C1=CC(C)=CC(C)=C1O SZAQZZKNQILGPU-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- HZTZZGSVCLBQMX-UHFFFAOYSA-J N,N-dipentylcarbamodithioate molybdenum(4+) Chemical compound C(CCCC)N(C([S-])=S)CCCCC.[Mo+4].C(CCCC)N(C([S-])=S)CCCCC.C(CCCC)N(C([S-])=S)CCCCC.C(CCCC)N(C([S-])=S)CCCCC HZTZZGSVCLBQMX-UHFFFAOYSA-J 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229920002367 Polyisobutene Polymers 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 2
- 239000011609 ammonium molybdate Substances 0.000 description 2
- 235000018660 ammonium molybdate Nutrition 0.000 description 2
- 229940010552 ammonium molybdate Drugs 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 159000000007 calcium salts Chemical class 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000010725 compressor oil Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- VDTIMXCBOXBHER-UHFFFAOYSA-N hydroxy-bis(sulfanyl)-sulfanylidene-$l^{5}-phosphane Chemical compound OP(S)(S)=S VDTIMXCBOXBHER-UHFFFAOYSA-N 0.000 description 2
- 150000003949 imides Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 159000000003 magnesium salts Chemical class 0.000 description 2
- 229910001510 metal chloride Inorganic materials 0.000 description 2
- 229910000000 metal hydroxide Inorganic materials 0.000 description 2
- 150000004692 metal hydroxides Chemical class 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- BRESEFMHKFGSDY-UHFFFAOYSA-N molybdenum;pyrrolidine-2,5-dione Chemical compound [Mo].O=C1CCC(=O)N1 BRESEFMHKFGSDY-UHFFFAOYSA-N 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229910017464 nitrogen compound Inorganic materials 0.000 description 2
- 150000002830 nitrogen compounds Chemical class 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 125000002524 organometallic group Chemical group 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical class O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000001384 succinic acid Substances 0.000 description 2
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 2
- ITRFOBBKTCNNFN-UHFFFAOYSA-N tris(sulfanyl)-sulfanylidene-$l^{5}-phosphane Chemical compound SP(S)(S)=S ITRFOBBKTCNNFN-UHFFFAOYSA-N 0.000 description 2
- 239000010723 turbine oil Substances 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- BXLYEXBWCGDPPL-UHFFFAOYSA-N (2-butylphenoxy)-(2-butylphenyl)sulfanyl-hydroxy-sulfanylidene-lambda5-phosphane Chemical compound CCCCC1=CC=CC=C1OP(O)(=S)SC1=CC=CC=C1CCCC BXLYEXBWCGDPPL-UHFFFAOYSA-N 0.000 description 1
- IGLVTGYELORYGW-UHFFFAOYSA-N (2-butylphenyl) carbamodithioate Chemical compound CCCCC1=CC=CC=C1SC(N)=S IGLVTGYELORYGW-UHFFFAOYSA-N 0.000 description 1
- MUUTTYVDNWSSMK-UHFFFAOYSA-N (2-butylphenyl)sulfanylcarbothioyl-sulfidoazanium Chemical compound CCCCC1=CC=CC=C1SC(=S)[NH2+][S-] MUUTTYVDNWSSMK-UHFFFAOYSA-N 0.000 description 1
- YZOWUKPDBZGMPM-UHFFFAOYSA-N (2-nonylphenyl)sulfanylcarbothioyl-sulfidoazanium Chemical compound CCCCCCCCCC1=CC=CC=C1SC(=S)[NH2+][S-] YZOWUKPDBZGMPM-UHFFFAOYSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 1
- MBIZXFATKUQOOA-UHFFFAOYSA-N 1,3,4-thiadiazole Chemical compound C1=NN=CS1 MBIZXFATKUQOOA-UHFFFAOYSA-N 0.000 description 1
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical class C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 1
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 1
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- OPLCSTZDXXUYDU-UHFFFAOYSA-N 2,4-dimethyl-6-tert-butylphenol Chemical compound CC1=CC(C)=C(O)C(C(C)(C)C)=C1 OPLCSTZDXXUYDU-UHFFFAOYSA-N 0.000 description 1
- GSOYMOAPJZYXTB-UHFFFAOYSA-N 2,6-ditert-butyl-4-(3,5-ditert-butyl-4-hydroxyphenyl)phenol Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(C=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 GSOYMOAPJZYXTB-UHFFFAOYSA-N 0.000 description 1
- UDFARPRXWMDFQU-UHFFFAOYSA-N 2,6-ditert-butyl-4-[(3,5-ditert-butyl-4-hydroxyphenyl)methylsulfanylmethyl]phenol Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CSCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 UDFARPRXWMDFQU-UHFFFAOYSA-N 0.000 description 1
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- PDKHNCYLMVRIFV-UHFFFAOYSA-H molybdenum;hexachloride Chemical compound [Cl-].[Cl-].[Cl-].[Cl-].[Cl-].[Cl-].[Mo] PDKHNCYLMVRIFV-UHFFFAOYSA-H 0.000 description 1
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- ZKZAYPCZGZAZAG-UHFFFAOYSA-J n,n-dibutylcarbamodithioate;molybdenum(4+) Chemical compound [Mo+4].CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC ZKZAYPCZGZAZAG-UHFFFAOYSA-J 0.000 description 1
- KGKPJEPGZDJABF-UHFFFAOYSA-J n,n-diethylcarbamodithioate;molybdenum(4+) Chemical compound [Mo+4].CCN(CC)C([S-])=S.CCN(CC)C([S-])=S.CCN(CC)C([S-])=S.CCN(CC)C([S-])=S KGKPJEPGZDJABF-UHFFFAOYSA-J 0.000 description 1
- MGJYZNJAQSLHOL-UHFFFAOYSA-M n,n-dioctylcarbamodithioate Chemical compound CCCCCCCCN(C([S-])=S)CCCCCCCC MGJYZNJAQSLHOL-UHFFFAOYSA-M 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- CBFCDTFDPHXCNY-UHFFFAOYSA-N octyldodecane Natural products CCCCCCCCCCCCCCCCCCCC CBFCDTFDPHXCNY-UHFFFAOYSA-N 0.000 description 1
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- ZXRDVSMSMOZCPT-UHFFFAOYSA-N phosphorodithious acid Chemical compound OP(S)S ZXRDVSMSMOZCPT-UHFFFAOYSA-N 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 229940083082 pyrimidine derivative acting on arteriolar smooth muscle Drugs 0.000 description 1
- 150000003230 pyrimidines Chemical class 0.000 description 1
- 102200082816 rs34868397 Human genes 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- DUIOPKIIICUYRZ-UHFFFAOYSA-N semicarbazide Chemical compound NNC(N)=O DUIOPKIIICUYRZ-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- MBBWTVUFIXOUBE-UHFFFAOYSA-L zinc;dicarbamodithioate Chemical compound [Zn+2].NC([S-])=S.NC([S-])=S MBBWTVUFIXOUBE-UHFFFAOYSA-L 0.000 description 1
Classifications
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
- C10M137/10—Thio derivatives
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/042—Metal salts thereof
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/09—Complexes with metals
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/12—Groups 6 or 16
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
- C10N2040/042—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for automatic transmissions
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
- C10N2040/044—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for manual transmissions
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/12—Gas-turbines
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/30—Refrigerators lubricants or compressors lubricants
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
Description
従来、内燃機関や自動変速機などには、その作用を円滑にするために潤滑油が用いられる。潤滑油が関与する摩擦部分でのエネルギー損失が大きいため、摩擦損失低減や燃費低減対策として、摩擦調整剤(FM:フリクションモディファイヤ)を初め、各種添加剤を組み合わせた潤滑油が使用されている。これまでの各種添加剤による摩擦低減対策は、鉄系材料への効果を中心に検討が行われてきた。
しかしながら、アルミニウム系材料には十分な効果を示さないことがわかってきた。そのため、これらに代わる添加剤、配合技術の検討が必要になっており、近年、水酸基やカルボン酸基をもつ化合物が、アルミニウム系材料の潤滑に有効であることがわかってきた(非特許文献1等参照)。
本発明の別の課題は、摺動部の少なくとも一方にアルミニウム系材料を備えた潤滑部を、摩擦を低減して潤滑しうるアルミニウム系部材の潤滑方法を提供することにある。
本発明によれば、摺動部の少なくとも一方にアルミニウム系材料を備えた潤滑部に用いる潤滑油組成物であって、潤滑油基油に、(A)リン含有カルボン酸化合物およびその金属塩の少なくとも1種を、組成物全量基準で、リン量として0.001〜1質量%含むことを特徴とする、アルミニウム系材料を備えた摺動部用潤滑油組成物(以下、本発明の潤滑油組成物と称することがある)が提供される。
また本発明によれば、摺動部の少なくとも一方にアルミニウム系材料を備えた潤滑部を、本発明の潤滑油組成物を用いて潤滑することを特徴とするアルミニウム系部材の潤滑方法が提供される。
本発明の潤滑油組成物は、摺動部の少なくとも一方にアルミニウム系材料を備えた潤滑部に用いるものであって、該アルミニウム系材料は、摺動部表面にアルミニウムが存在しうる状態のものであれば特に制限はなく、アルミニウムだけでなく、アルミニウム合金、あるいは、アルミニウム又はアルミニウム合金を各種金属基材表面に被覆したアルミニウム含有金属材料等が挙げられる。
上記アルミニウム含有金属材料は、その表面に非アルミニウム含有金属材料が被覆されていても、使用過程においてその被覆面が摩耗して当該アルミニウム含有金属材料が露出する可能性があるものも、本発明の潤滑油組成物の潤滑対象に含まれる。
このようなアルミニウム系材料のいくつかの例は、例えば、特開2010−174374号公報、特開2010−5687号公報に具体的に示されている。
なお、金属表面のアルミニウム含有量が多いほど、本発明の潤滑油組成物は有用である。
鉱油系基油としては、例えば、原油を常圧蒸留して得られる常圧残油を減圧蒸留して得られた潤滑油留分を、溶剤脱れき、溶剤抽出、水素化分解、溶剤脱ろう、水素化精製等の処理を1つ以上行って精製したもの、あるいは鉱油系ワックスや、GTL WAX(ガストゥリキッドワックス)を異性化する手法で製造される基油が挙げられる。
上記飽和分は、ASTM D2549に準拠して測定した飽和分を意味する。
(A)成分としてのリン含有カルボン酸化合物としては、例えば、式(1)で表される化合物が好ましく挙げられる。
式(1)において、R4及びR5は、それぞれ個別に炭素数1〜30の炭化水素基を示す。該炭素数1〜30の炭化水素基としては、例えば、アルキル基、シクロアルキル基、アルケニル基、アルキル置換シクロアルキル基、アリール基、アルキル置換アリール基、又はアリールアルキル基を挙げることがでる。
式(1)において、R6〜R9は、それぞれ個別に水素原子又は炭素数1〜4の炭化水素基を示す。該炭化水素基としては、アルキル基又はアルケニル基が挙げられる。R6〜R9としては、少なくとも2つが水素原子であることが好ましく、全てが水素原子であることが特に好ましい。
上記金属としては、アルカリ金属、アルカリ土類金属、亜鉛、銅、アルミニウムまたはこれら金属の2種以上の混合物を用いることができる。
本発明における(A)成分としては、上記リン含有カルボン酸化合物の金属塩が、塩基価維持性により優れるため、より好ましい。
(B)成分としての有機モリブデン化合物としては、例えば、硫化モリブデンジチオカーバメート、硫化オキシモリブデンジチオカーバメート、硫化モリブデンジチオホスフェート、硫化オキシモリブデンジチオホスフェート、モリブデンのアミン錯体、モリブデンのコハク酸イミド錯体、有機酸のモリブデン塩、アルコールのモリブデン塩が挙げられる。
前記アミン化合物が有する炭化水素基の炭素数は、好ましくは4以上、より好ましくは4〜30、特に好ましくは8〜18である。アミン化合物の炭化水素基の炭素数が4未満であると、溶解性が悪化する傾向にある。また、アミン化合物の炭素数を30以下とすることにより、有機モリブデン化合物中におけるモリブデン含量を相対的に高めることができ、少量の配合で本発明の効果をより高めることができる。
該コハク酸イミドとしては、例えば、炭素数4〜30、好ましくは炭素数8〜18のアルキル基又はアルケニル基を有するコハク酸イミド等が挙げられる。該コハク酸イミドにおけるアルキル基又はアルケニル基の炭素数が4未満であると溶解性が悪化する傾向にある。また、炭素数が30を越え400以下のアルキル基又はアルケニル基を有するコハク酸イミドを使用することもできるが、当該アルキル基又はアルケニル基の炭素数を30以下とすることにより、モリブデン−コハク酸イミド錯体におけるモリブデン含有量を相対的に高めることができ、少量の配合で本発明の効果をより高めることができる。
前記カルボン酸のモリブデン塩を構成するカルボン酸としては、一塩基酸又は多塩基酸のいずれであってもよい。
(B)成分として、もっとも好ましい化合物はモリブデンジチオカーバメートである。
(C)成分のリン系化合物としては、例えば、式(4)で表されるリン化合物、式(5)で表されるリン化合物、又はそれらの金属塩、それらのアミン塩あるいはこれらの誘導体からなる群より選ばれる少なくとも1種の化合物が好ましく挙げられる。
上記R27〜R29で表される炭素数1〜30の炭化水素基としては、アルキル基、シクロアルキル基、アルケニル基、アルキル置換シクロアルキル基、アリール基、アルキル置換アリール基、及びアリールアルキル基を挙げることができる。
上記金属塩基における金属としては、例えば、リチウム、ナトリウム、カリウム、セシウム等のアルカリ金属;カルシウム、マグネシウム、バリウム等のアルカリ土類金属;亜鉛、銅、鉄、鉛、ニッケル、銀、マンガン等の重金属が挙げられる。これらの中ではカルシウム、マグネシウム等のアルカリ土類金属又は亜鉛が好ましい。
R3、R4、R5及びR6がとり得る前記炭化水素基の中でも、その炭化水素基が、直鎖状又は分枝状の炭素数1〜18のアルキル基である場合、若しくは炭素数6〜18のアリール基又は直鎖状若しくは分枝状アルキルアリール基である場合が特に好ましい。
本発明の潤滑油組成物において(C)成分のリン系化合物を用いる場合の含有量は、特に制限はないが、組成物全量基準でリン元素換算量として通常0.005質量%以上であり、好ましくは0.01質量%以上、特に好ましくは0.02質量%以上であり、一方、その含有量は、好ましくは0.12質量%以下、さらに好ましくは0.1質量%以下、特に好ましくは0.08質量%以下である。(C)成分のリン系化合物の含有量が、リン元素として0.005質量%未満の場合は、摩耗防止性に対して効果がなく好ましくなく、一方、その含有量が、リン元素として0.12質量%を超える場合は、排ガス後処理装置への悪影響が懸念される。
本発明の潤滑油組成物において、リン系化合物である(A)成分及び(C)成分を含む場合、これらの合計含有量は、組成物全量基準で、リン元素換算量として0.15質量%以下、好ましくは0.1質量%以下、さらに好ましくは0.08質量%以下である。0.15質量%を超える場合は、排ガス後処理装置への悪影響が懸念される。
前記サリシレート系清浄剤は、モノアルキル、ジアルキル等の構造を有するが、ジアルキル基のアルキル基は同一でも異なっていてもよい。上記アルキル基は、それぞれ炭素数1〜32の直鎖または分枝アルキル基が挙げられ、少なくとも炭素数8〜32、好ましくは14〜32の直鎖または分枝アルキル基を有することが好ましい。
サリシレート系清浄剤の金属としては、アルカリ金属又はアルカリ土類金属、具体的には例えば、ナトリウム、カリウム、カルシウム、マグネシウム等、好ましくはカルシウム、マグネシウム、特にカルシウムが挙げられる。
上記フェノール系酸化防止剤、アミン系酸化防止剤、有機金属酸化防止剤は組み合わせて配合してもよい。
なお、硫黄化合物はモリブデン化合物と併用することにより、摩擦低減とその持続性に効果があり、特にチアジアゾールが有効である。
これらの粘度指数向上剤の中でもエチレン−α−オレフィン共重合体又はその水素化物を用いた場合には、特にせん断安定性に優れた潤滑油組成物を得ることができる。上記粘度指数向上剤の中から任意に選ばれた1種あるいは2種以上の化合物を任意の量で含有させることができる。粘度指数向上剤の含有量は、通常潤滑油組成物基準で0.1〜20質量%である。
防錆剤としては、例えば、石油スルホネート、アルキルベンゼンスルホネート、ジノニルナフタレンスルホネート、アルケニルコハク酸エステル、又は多価アルコールエステルが挙げられる。
抗乳化剤としては、例えば、ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルキルフェニルエーテル、又はポリオキシエチレンアルキルナフチルエーテル等のポリアルキレングリコール系非イオン系界面活性剤が挙げられる。
なお、チアジアゾールは硫黄化合物の一種でもあり、モリブデン化合物と併用することにより、摩擦低減とその持続性に特に効果がある。
消泡剤としては、例えば、シリコーン、フルオロシリコール、又はフルオロアルキルエーテルが挙げられる。
実施例1〜6及び比較例1〜8(実施例1及び2は参考例1及び2とする)
表1及び表2に示す潤滑油基油に、表1及び表2に示す組成の添加剤を常法に従って混合して潤滑油組成物を調製した。得られた各潤滑油組成物を用いて以下に示す摩耗係数及びアルミ材摩耗量を測定した。結果を表1及び表2に示す。
試験に使用した装置、試験方法は以下のとおりである。
試験装置名称:木村・若林式トライボモジュラー(神鋼造機製)。
本試験機は回転する円盤上に一本のピンを押し付けるタイプの試験機である。
該ピンは材質がJIS S45C 調質材であり、形状は直径4mm、長さ6mmのものであり、また円盤ディスクは、材質がエンジンすべり軸受用 Al合金であり、形状が直径10mm、厚み1.2mmのものである。
試験条件は、すべり速度:0.3m/s、1.05m/s、荷重:29.4N(60分)、試験温度は室温の条件である。
なお、本試験においてアルミ材摩耗量は、10μm未満のものであれば耐摩耗性に問題ないと判断できるものであり、該アルミ材摩耗量が問題ない場合は、摩擦係数により潤滑性能を評価することができる。
Claims (6)
- 摺動部の少なくとも一方にアルミニウム系材料を備えた潤滑部に用いる潤滑油組成物であって、
潤滑油基油に、(A)リン含有カルボン酸化合物およびその金属塩の少なくとも1種を、組成物全量基準で、リン量として0.001〜1質量%、(B)有機モリブデン化合物を、組成物全量基準で、モリブデン量として50〜2000質量ppm、及び(C)式(5)で表されるリン化合物の金属塩を、組成物全量基準で、リン量として0.001〜1質量%含むことを特徴とする、アルミニウム系材料を備えた内燃機関摺動部用潤滑油組成物。
- (B)成分が、モリブデンジチオカーバメートである請求項1または2に記載の内燃機関摺動部用潤滑油組成物。
- (C)成分が、ジアルキルリン酸亜鉛系化合物である請求項1〜3のいずれかに記載の内燃機関摺動部用潤滑油組成物。
- (C)成分が、ジアルキルリン酸亜鉛、ジアルキルモノチオリン酸亜鉛から選ばれる一つ以上の化合物である請求項1〜3のいずれかに記載の内燃機関摺動部用潤滑油組成物。
- 内燃機関摺動部の少なくとも一方にアルミニウム系材料を備えた潤滑部を、請求項1〜5のいずれかに記載の内燃機関摺動部用潤滑油組成物を用いて潤滑することを特徴とする内燃機関のアルミニウム系部材の潤滑方法。
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US13/885,904 US9040470B2 (en) | 2010-11-19 | 2011-07-26 | Lubricating oil composition for sliding section comprising aluminum material, and lubricating method |
PCT/JP2011/066946 WO2012066823A1 (ja) | 2010-11-19 | 2011-07-26 | アルミニウム系材料を備えた摺動部用潤滑油組成物及び潤滑方法 |
CN2011800655116A CN103314089A (zh) | 2010-11-19 | 2011-07-26 | 用于包含铝系材料的滑动部的润滑油组合物及润滑方法 |
EP11841046.3A EP2653528A4 (en) | 2010-11-19 | 2011-07-26 | LUBRICATING OIL COMPOSITION FOR SLIDING SECTION COMPRISING ALUMINUM MATERIAL, AND LUBRICATION METHOD |
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CN105189718A (zh) * | 2013-03-08 | 2015-12-23 | 出光兴产株式会社 | 润滑油组合物 |
JP6373857B2 (ja) * | 2013-10-18 | 2018-08-15 | Jxtgエネルギー株式会社 | 潤滑油組成物 |
EP3077488B1 (en) | 2013-12-06 | 2023-11-01 | Basf Se | Composition and method of forming the same |
CN103725069B (zh) * | 2014-01-03 | 2016-05-25 | 泉州市德源轴承实业有限公司 | 一种固体自润滑涂层及其制备方法 |
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JP6513698B2 (ja) * | 2014-11-04 | 2019-05-15 | Jxtgエネルギー株式会社 | 冷凍機油 |
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