JP5325438B2 - 非鉄金属管加工用潤滑油組成物 - Google Patents
非鉄金属管加工用潤滑油組成物 Download PDFInfo
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- JP5325438B2 JP5325438B2 JP2008073846A JP2008073846A JP5325438B2 JP 5325438 B2 JP5325438 B2 JP 5325438B2 JP 2008073846 A JP2008073846 A JP 2008073846A JP 2008073846 A JP2008073846 A JP 2008073846A JP 5325438 B2 JP5325438 B2 JP 5325438B2
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- oil
- lubricating oil
- acid
- ether
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- 239000000203 mixture Substances 0.000 title claims description 35
- 239000010687 lubricating oil Substances 0.000 title claims description 33
- 229910052751 metal Inorganic materials 0.000 title claims description 33
- 239000002184 metal Substances 0.000 title claims description 33
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title claims description 20
- 238000012545 processing Methods 0.000 title claims description 17
- -1 alkylene glycol Chemical compound 0.000 claims description 26
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 125000002947 alkylene group Chemical group 0.000 claims description 22
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 21
- 125000000217 alkyl group Chemical group 0.000 claims description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 14
- 150000005215 alkyl ethers Chemical class 0.000 claims description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 45
- 235000019198 oils Nutrition 0.000 description 45
- 238000000137 annealing Methods 0.000 description 29
- 125000004432 carbon atom Chemical group C* 0.000 description 26
- 150000002148 esters Chemical class 0.000 description 23
- 239000002199 base oil Substances 0.000 description 22
- 229920005862 polyol Polymers 0.000 description 18
- 101001124867 Homo sapiens Peroxiredoxin-1 Proteins 0.000 description 17
- 238000005057 refrigeration Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 14
- 239000010695 polyglycol Substances 0.000 description 14
- 238000012360 testing method Methods 0.000 description 14
- 239000010721 machine oil Substances 0.000 description 13
- 239000003507 refrigerant Substances 0.000 description 13
- 239000000654 additive Substances 0.000 description 12
- 150000004996 alkyl benzenes Chemical class 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- 229920001577 copolymer Polymers 0.000 description 11
- 150000003077 polyols Chemical class 0.000 description 11
- 239000002253 acid Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 230000000996 additive effect Effects 0.000 description 9
- 150000001336 alkenes Chemical class 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 239000000178 monomer Substances 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 150000002430 hydrocarbons Chemical class 0.000 description 7
- 239000002480 mineral oil Substances 0.000 description 7
- 235000010446 mineral oil Nutrition 0.000 description 7
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- 239000000047 product Substances 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 7
- JRZJOMJEPLMPRA-UHFFFAOYSA-N 1-nonene Chemical group CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 6
- WWZKQHOCKIZLMA-UHFFFAOYSA-N Caprylic acid Natural products CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 6
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 6
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 6
- 229920001083 polybutene Polymers 0.000 description 6
- 229920000098 polyolefin Polymers 0.000 description 6
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 238000005219 brazing Methods 0.000 description 5
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 5
- 239000000194 fatty acid Substances 0.000 description 5
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- 150000004665 fatty acids Chemical class 0.000 description 5
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- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 5
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical group CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 4
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- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 4
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 description 4
- 150000002170 ethers Chemical class 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 239000003112 inhibitor Substances 0.000 description 4
- 229920001451 polypropylene glycol Polymers 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 4
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- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical group CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 3
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical group CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 3
- GHVNFZFCNZKVNT-UHFFFAOYSA-N Decanoic acid Natural products CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 3
- 229920001774 Perfluoroether Polymers 0.000 description 3
- 229920005603 alternating copolymer Polymers 0.000 description 3
- 229920001400 block copolymer Polymers 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 235000011187 glycerol Nutrition 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- UJMWVICAENGCRF-UHFFFAOYSA-N oxygen difluoride Chemical compound FOF UJMWVICAENGCRF-UHFFFAOYSA-N 0.000 description 3
- 229920013636 polyphenyl ether polymer Polymers 0.000 description 3
- 229920005604 random copolymer Polymers 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- NKJOXAZJBOMXID-UHFFFAOYSA-N 1,1'-Oxybisoctane Chemical compound CCCCCCCCOCCCCCCCC NKJOXAZJBOMXID-UHFFFAOYSA-N 0.000 description 2
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 2
- UJPMYEOUBPIPHQ-UHFFFAOYSA-N 1,1,1-trifluoroethane Chemical compound CC(F)(F)F UJPMYEOUBPIPHQ-UHFFFAOYSA-N 0.000 description 2
- WXGNWUVNYMJENI-UHFFFAOYSA-N 1,1,2,2-tetrafluoroethane Chemical compound FC(F)C(F)F WXGNWUVNYMJENI-UHFFFAOYSA-N 0.000 description 2
- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical compound CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 description 2
- 125000004815 1,2-dimethylethylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([*:2])C([H])([H])[H] 0.000 description 2
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 2
- UJEGHEMJVNQWOJ-UHFFFAOYSA-N 1-heptoxyheptane Chemical compound CCCCCCCOCCCCCCC UJEGHEMJVNQWOJ-UHFFFAOYSA-N 0.000 description 2
- BPIUIOXAFBGMNB-UHFFFAOYSA-N 1-hexoxyhexane Chemical compound CCCCCCOCCCCCC BPIUIOXAFBGMNB-UHFFFAOYSA-N 0.000 description 2
- 125000004806 1-methylethylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- DKZRLCHWDNEKRH-UHFFFAOYSA-N 1-nonoxynonane Chemical compound CCCCCCCCCOCCCCCCCCC DKZRLCHWDNEKRH-UHFFFAOYSA-N 0.000 description 2
- AOPDRZXCEAKHHW-UHFFFAOYSA-N 1-pentoxypentane Chemical compound CCCCCOCCCCC AOPDRZXCEAKHHW-UHFFFAOYSA-N 0.000 description 2
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- SZSSMFVYZRQGIM-UHFFFAOYSA-N 2-(hydroxymethyl)-2-propylpropane-1,3-diol Chemical compound CCCC(CO)(CO)CO SZSSMFVYZRQGIM-UHFFFAOYSA-N 0.000 description 2
- WMYINDVYGQKYMI-UHFFFAOYSA-N 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol Chemical compound CCC(CO)(CO)COCC(CC)(CO)CO WMYINDVYGQKYMI-UHFFFAOYSA-N 0.000 description 2
- 125000004813 2-ethylethylene group Chemical group [H]C([H])([H])C([H])([H])C([H])([*:2])C([H])([H])[*:1] 0.000 description 2
- 125000004807 2-methylethylene group Chemical group [H]C([H])([H])C([H])([*:2])C([H])([H])[*:1] 0.000 description 2
- JMMZCWZIJXAGKW-UHFFFAOYSA-N 2-methylpent-2-ene Chemical group CCC=C(C)C JMMZCWZIJXAGKW-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
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- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
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- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 2
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- 125000002958 pentadecyl 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])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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Landscapes
- Lubricants (AREA)
Description
また、HFC冷媒に対する相溶性を改善するために、ポリアルキレングリコールを基油とし、潤滑性を付与するために多価アルコールの部分エーテル化合物を配合する方法も行われている(例えば、特許文献5,6を参照)。
とくに、特許文献6では、ポリアルキレングリコールを基油として、アルコール油性剤を配合してなる、アルミニウム管加工用潤滑油が開示されているが、その実施例でのアルコールの配合量は10%もの多量の配合である(特許文献6、表1、実施例7および9(添加剤A3(ラウリルアルコール) 10%)。添加剤A3(ラウリルアルコール)は、他の基油でも10%を配合されており(実施例3および10)、いずれにしろ多量の配合である。
ここで、上記特許文献6では、一価アルコールの炭素数はより潤滑性に優れる点から6以上が好ましいとしており(特許文献6、段落0054)、この点から、その実施例でも前述のように炭素数12のラウリルアルコールを使用している。
しかしながら、このような従来の概念による基油と油性剤との組み合わせではその使用量の低減は難しいことが認識される。
ここで、本発明者らは、低分子量のポリアルキレングリコールを油性剤として採用し、その分子量を低分子量とすることで、該油性剤の加工対象の金属への吸着が大となり、それから、その使用量が低減できることが判明した。これは単に低分子量油性剤の採用というよりも、油性剤発想の転換によるものである。
R1−O−(R2−O)m−R3 (1)
(式中、R1,R3は、同一でも異なっていてもよく、それぞれ水素原子又はアルキル基を示し、R2は、アルキレン基を示し、mは10〜100の整数であり、m個のR2は同一でも異なっていてもよい。)
一般式(1)中、R1又はR3のいずれか一方あるいは双方がアルキル基である場合、このアルキル基の炭素数は任意に選択することができるが、炭素数が18を超えると、焼鈍後に潤滑油が管内に残存することがある。従って、アルキル基の炭素数は1〜18であることが好ましく、炭素数が1〜10であるとより一層好ましい。また、このアルキル基は直鎖状であっても、分枝状であってもよく、具体的には、メチル基、エチル基、n−プロピル基、イソプロピル基、n−ブチル基、イソブチル基、scc−ブチル基、tert−ブチル基、直鎖状又は分枝状のペンチル基、直鎖状又は分枝状のヘキシル基、直鎖状又は分枝状のへプチル基、直鎖状又は分枝状のオクチル基、直鎖状又は分枝状のノニル基、直鎖状又は分枝状のデシル基、直鎖状又は分枝状のウンデシル基、直鎖状又は分枝状のドデシル基、直鎖状又は分枝状のトリデシル基、直鎖状又は分枝状のテトラデシル基、直鎖状又は分枝状のペンタデシル基、直鎖状又は分枝状のヘキサデシル基、直鎖状又は分枝状のヘプタデシル基、及び直鎖状又は分枝状のオクタデシル基等が挙げられる。
次に、配合剤として、油性剤成分であるアルキレングリコールまたはポリアルキレングリコール(以下、「PAG系油性剤」ともいう。)について詳述する。
HO−(R4−O)n−H (2)
(但し、R4は、アルキレン基を示し、nは1〜6の整数であり、n個のR4は同一でも異なっていてもよい。)
一般式(2)中、R4で示されるアルキレン基の炭素数は2〜4とすることが好ましい。炭素数が2〜4のアルキレン基としては、具体的には、エチレン基、プロピレン基(1−メチルエチレン基及び2−メチルエチレン基を含む)、トリメチレン基、ブチレン基(1−エチルエチレン基及び2−エチルエチレン基を含む)、1,2−ジメチルエチレン基、2,2−ジメチルエチレン基、1−メチルトリメチレン基、2−メチルトリメチレン基、3−メチルトリメチレン基、テトラメチレン基等が挙げられる。
これらの中でも、R4としては、吸湿性が低く、潤滑性が優れており、加水分解が起こりにくい等の点から、炭素数3以上のアルキレン基が好ましく、炭素数4のアルキレン基がより一層好ましい。
ジオールとして、具体的には、例えばエチレングリコール、1,3−プロパンジオール、プロピレングリコール、1,4−ブタンジオール、1,2−ブタンジオール、2−メチル−1,3−プロパンジオール、1,5−ペンタンジオール、ネオペンチルグリコール、1,6−ヘキサンジオール、2−エチル−2−メチル−1,3−プロパンジオール、1,7−ヘプタンジオール、2−メチル−2−プロピル−1,3−プロパンジオール、2,2−ジエチル−1,3−プロパンジオール、1,8−オクタンジオール、1,9−ノナンジオール、1,10−デカンジオール、1,11−ウンデカンジオール、及び1,12−ドデカンジオール等がある。
更に、ポリビニルエーテルとしては、下記一般式(3)で表される構成単位を有するものを使用することができる。
実施例1〜8及び比較例1〜3においては、それぞれ以下に示す基油及び添加剤を用いて表1に示す組成を有する潤滑油組成物を調製した。
基油1:ポリブチレングリコール(40℃における動粘度:580mm2/s、数平均分子量:4800)
基油2:ポリプロピレングリコール(40℃における動粘度:470mm2/s,数平均分子量:4000)
基油3:ポリプロピレングリコールモノアルキルエーテル(40℃における動粘度:620mm2/s,数平均分子量:3000)
基油4:鉱油(40℃における動粘度:460mm2/s)
(添加剤)
A1:ポリプロピレングリコール(数平均分子量:200)
A2:ポリエチレングリコール(数平均分子量:200)
A3:グリセリンモノオクチルエーテル
(潤滑性:バウデン試験)
以下の試験条件でボール・オン・プレート往復動摺動試験(バウデン試験)を実施し、摩擦係数を測定した。得られた結果を表1に示す。
試験条件
送り速度:50mm/min
荷重:500gf
ボール(上側試験球):5/32inch鋼球(SUJ−2)
プレート(下側試験板):A5052材板(アルミニウム)
試験温度:室温。
示差熱天秤装置を用いて窒素雰囲気下で試験し、試料油の熱分解時の残渣物の質量を元試料に対する残分(質量%)として測定すると共に、残渣物の外観を観察した。外観は、変化ないものを「○」、スラッジ化するものを「×」として評価した。
試験条件
元試料:0.025g
昇温速度:10℃/min
窒素流量:50mL/min
金属管加工用潤滑油の焼鈍残渣物の冷凍機油に対する安定性を評価するため、以下の試験を実施した。まず、JIS K 2211「冷凍機油」の附属書2「冷媒との化学安定性試験方法(シールドグラスチューブ試験)」に準拠した触媒(太さ1.6mm、長さ50mmの鉄線、銅線及びアルミニウム線)を準備した。その触媒を金属管加工用潤滑油の試料油に浸漬して触媒表面に試料油を付着させ、300℃の恒温槽に入れて30分間保持して焼鈍した。この焼鈍した触媒を、内径10mm、肉厚1mmのガラス管に入れ、冷凍機油(ポリプロピレングリコール、40℃における動粘度:46mm2/s)1mL、試料油1mL及び冷媒(HFC−134a)1mLを採取して、ガラス管を溶融して密閉した。この密閉したガラス管を175℃で14日保持した後、触媒の外観及びスラッジの有無を観察した。得られた結果を表1に示す。表1の「触媒外観」の欄中、Aは「変化なし」、Bは「変色が認められた」、Cは「腐食した」をそれぞれ意味する。また、試験後の油剤の外観を観察した。表1の「油剤の外観」の欄中、Aは「変化なし」、Bは「沈殿が認められた」を意味する。
Claims (1)
- 下記一般式(1)で示されるポリアルキレングリコール及びポリアルキレングリコールのアルキルエーテルからなる群から選択された少なくとも1種を基油とし、下記一般式(2)で表されるアルキレングリコールまたはポリアルキレングリコールからなる油性剤を、組成物全量基準で、0.05質量%〜10質量%を含有することを特徴とする非鉄金属管加工用潤滑油組成物。
R1−O−(R2−O)m−R3 (1)
(但し、R1,R3は、同一でも異なっていてもよく、それぞれ水素原子又はアルキル基を示し、R2は、アルキレン基を示し、mは10〜100の整数であり、m個のR2は同一でも異なっていてもよい。)
HO−(R4−O)n−H (2)
(但し、R4は、アルキレン基を示し、nは1〜6の整数であり、n個のR 4 は同一でも異なっていてもよい。)
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