CN115261101B - 一种轴承润滑脂及其制备方法 - Google Patents
一种轴承润滑脂及其制备方法 Download PDFInfo
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- CN115261101B CN115261101B CN202210820456.7A CN202210820456A CN115261101B CN 115261101 B CN115261101 B CN 115261101B CN 202210820456 A CN202210820456 A CN 202210820456A CN 115261101 B CN115261101 B CN 115261101B
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- lubricating grease
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- 239000004519 grease Substances 0.000 title claims abstract description 60
- 230000001050 lubricating effect Effects 0.000 title abstract description 41
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000002199 base oil Substances 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 11
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 claims description 48
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 39
- 229940114072 12-hydroxystearic acid Drugs 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 20
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000003921 oil Substances 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 239000000920 calcium hydroxide Substances 0.000 claims description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 5
- SZRLKIKBPASKQH-UHFFFAOYSA-M dibutyldithiocarbamate Chemical compound CCCCN(C([S-])=S)CCCC SZRLKIKBPASKQH-UHFFFAOYSA-M 0.000 claims description 4
- 238000004090 dissolution Methods 0.000 claims description 2
- 239000000344 soap Substances 0.000 abstract description 31
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 19
- 229910052744 lithium Inorganic materials 0.000 abstract description 19
- 239000002480 mineral oil Substances 0.000 abstract description 17
- 239000003795 chemical substances by application Substances 0.000 abstract description 15
- 235000010446 mineral oil Nutrition 0.000 abstract description 15
- 239000002131 composite material Substances 0.000 abstract description 14
- 239000002562 thickening agent Substances 0.000 abstract description 12
- USOPFYZPGZGBEB-UHFFFAOYSA-N calcium lithium Chemical compound [Li].[Ca] USOPFYZPGZGBEB-UHFFFAOYSA-N 0.000 abstract description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052791 calcium Inorganic materials 0.000 abstract description 9
- 239000011575 calcium Substances 0.000 abstract description 9
- 238000005461 lubrication Methods 0.000 abstract description 9
- 239000000243 solution Substances 0.000 description 18
- 239000000654 additive Substances 0.000 description 6
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 150000004665 fatty acids Chemical class 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 239000000306 component Substances 0.000 description 5
- PQVSTLUFSYVLTO-UHFFFAOYSA-N ethyl n-ethoxycarbonylcarbamate Chemical compound CCOC(=O)NC(=O)OCC PQVSTLUFSYVLTO-UHFFFAOYSA-N 0.000 description 5
- ZHVGLSPRBOXEPD-UHFFFAOYSA-N hexadecoxyboronic acid Chemical compound CCCCCCCCCCCCCCCCOB(O)O ZHVGLSPRBOXEPD-UHFFFAOYSA-N 0.000 description 5
- GLXDVVHUTZTUQK-UHFFFAOYSA-M lithium hydroxide monohydrate Substances [Li+].O.[OH-] GLXDVVHUTZTUQK-UHFFFAOYSA-M 0.000 description 5
- 229940040692 lithium hydroxide monohydrate Drugs 0.000 description 5
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000007866 anti-wear additive Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
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- 230000000052 comparative effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- XBBHFQNIEJGGIG-UHFFFAOYSA-N dibutyllead Chemical compound CCCC[Pb]CCCC XBBHFQNIEJGGIG-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 239000012990 dithiocarbamate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 2
- 239000004533 oil dispersion Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000005069 Extreme pressure additive Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- OOSPDKSZPPFOBR-UHFFFAOYSA-N butyl dihydrogen phosphite Chemical compound CCCCOP(O)O OOSPDKSZPPFOBR-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- OSPSWZSRKYCQPF-UHFFFAOYSA-N dibutoxy(oxo)phosphanium Chemical compound CCCCO[P+](=O)OCCCC OSPSWZSRKYCQPF-UHFFFAOYSA-N 0.000 description 1
- SZRLKIKBPASKQH-UHFFFAOYSA-N dibutyldithiocarbamic acid Chemical compound CCCCN(C(S)=S)CCCC SZRLKIKBPASKQH-UHFFFAOYSA-N 0.000 description 1
- JWHFYIKVRLMUCH-UHFFFAOYSA-N dipentylcarbamodithioic acid Chemical compound CCCCCN(C(S)=S)CCCCC JWHFYIKVRLMUCH-UHFFFAOYSA-N 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- GIWKOZXJDKMGQC-UHFFFAOYSA-L lead(2+);naphthalene-2-carboxylate Chemical compound [Pb+2].C1=CC=CC2=CC(C(=O)[O-])=CC=C21.C1=CC=CC2=CC(C(=O)[O-])=CC=C21 GIWKOZXJDKMGQC-UHFFFAOYSA-L 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound 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 1
- 238000011160 research Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- 238000007039 two-step reaction Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
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- C10M2207/10—Carboxylix acids; Neutral salts thereof
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- C10M2207/122—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms monocarboxylic
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- C10M2207/10—Carboxylix acids; Neutral salts thereof
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Abstract
本发明涉及润滑脂技术领域,具体涉及一种轴承润滑脂及其制备方法。所述轴承润滑脂按照重量份计,包括以下组分:基础油40~80份、稠化剂8~41份、极压抗磨剂12~27份;所述基础油为100℃粘度6~20mm2/s的低粘度矿物油和100℃粘度20~40mm2/s的高粘度矿物油的混合物;所述稠化剂选自锂皂、锂钙皂、复合锂皂、复合钙皂和复合锂钙皂中的一种或多种。本发明提供的润滑脂具有摩擦系数低以及优异的极压抗磨性能,可用于轴承、齿轮、铰链等处润滑,特别适合有低噪音要求的轴承润滑。
Description
技术领域
本发明涉及润滑脂技术领域,具体涉及一种轴承润滑脂及其制备方法。
背景技术
轴承是装备制造业的核心零部件。轴承列在12种机械基础件的首位。轴承的科研属于工程摩擦学范畴。摩擦学是研究摩擦、磨损、润滑与密封等相关理论与技术的工程技术学科。在滚动轴承精度、性能、寿命及可靠性的检测试验与考核、故障检测与诊断、寿命预测与评估等相关领域中,轴承寿命、可靠性及预估问题是最实用,也是最复杂的集科学、技术与工程、管理于一体的综合性实用课题,而轴承润滑技术与此密切相关,其性能的好坏直接影响着轴承的使用寿命。轴承一般是由滚动体、保持架、内圈和外圈四大部件组成,由于润滑脂在轴承润滑中具有不可代替的作用,人们通常将润滑脂列为轴承的第五大部件,可见润滑脂对轴承润滑的重要性。据统计,超过90%的轴承采用润滑脂润滑。
在高端装备制造产业中,高性能轴承属于关键基础零部件,对国民经济发展、和国防建设起着重要的支撑作用。而轴承的高可靠性、长寿命运转离不开良好的润滑环境。轴承在工作过程中滚动体和滚道接触会发生弹塑性变形,加大摩擦和磨损而造成运转精度降低,导致轴承和设备的使用寿命减少。轴承的良好润滑是减小摩擦磨损,提高能量利用率,保证机械设备长寿命、高可靠性稳定运行,提高工作效率和保证制造业高质量生产的重要一环。轴承润滑脂在担负润滑功能的同时面临的主要问题是极压、重载、高温、高冲击震荡所造成的轴承早期磨损和失效。随着轴承行业的迅速发展,要求润滑脂具有良好的极压抗磨性能以减少托辊的旋转阻力,从而降低设备的驱动功率,减少能耗而降低运营成本,提高设备的使用寿命。
在国内外的相关发明中,CN200410036957中稠化剂采用磺酸钙与聚脲复合,没有考虑决定润滑脂最终极压耐磨性能的固体添加剂和其他功能添加剂的合理配伍问题,使整个润滑脂的综合性能不能满足极压耐磨功能,存在着单一性能突出而整体性能不足的问题。US20030087768采用添加比表面积为150m2/g-300m2/g的金属氧化物添加剂,添加量为0.1%-5%,但由于比表面积过大表面能高,导致颗粒之间团聚,形成颗粒大小不等、分散范围很大的颗粒团,在润滑脂中难以分散均匀,降低润滑脂摩擦系数不佳。US5589443在添加剂的选择上,没有选择对轴承密封圈进行磨损修复功能的添加剂,大多选择二硫化钼固体添加剂作为固体极压添加剂从而导致所得润滑脂摩擦系数高、耐磨性较差。
综上所述,轴承润滑脂到目前为止仍然是使用最为广泛的润滑脂品种,但是目前市售工业轴承用润滑脂普遍存在极压抗磨性不足和寿命不长的缺陷。所以,如何提供在润滑脂轴承润滑的基础上提升其极压抗磨性和润滑寿命,减少润滑脂使用量,进而减少对环境的污染,延长换脂周期降低综合应用成本,是目前亟待解决的技术问题,对整个社会具有十分重要的实际意义和经济价值。
发明内容
为了解决上述技术问题,本发明提供一种轴承润滑脂及其制备方法。
第一方面,本发明提供的轴承润滑脂,按照重量份计,包括以下组分:基础油40~80份、稠化剂8~41份、极压抗磨剂12~27份;所述基础油为100℃粘度6~20mm2/s的低粘度矿物油和100℃粘度20~40mm2/s的高粘度矿物油的混合物;所述稠化剂选自锂皂、锂钙皂、复合锂皂、复合钙皂和复合锂钙皂中的一种或多种。本发明所提供的润滑脂具有优异的流动性、粘附性和极压抗磨性能,摩擦系数低,同时具有长使用寿命的轴承润滑脂,解决了现有轴承润滑剂易流失的问题,能够满足轴承自润滑和对润滑剂抗磨损性能优异的要求,起到降低振动,抗磨、防护的作用,本发明提供的润滑脂能够用于轴承、齿轮、铰链等处润滑,特别适合有低噪音要求的轴承润滑。
作为优选,所述低粘度矿物油的100℃粘度为8~15mm2/s,所述高粘度矿物油的100℃粘度为27~35mm2/s。本发明中,采用上述优选粘度的低粘度矿物油和高粘度矿物油,不仅有利于本发明润滑脂各组分间更好的发挥作用,利于综合性能的提高,尤其是能够更有效解决轴承部位摩擦力增大,温度升高,功耗加大的问题,使得润滑脂的润滑性能得到改善,进一步提高了润滑脂的有效利用率。
作为优选,所述低粘度矿物油与所述高粘度矿物油的重量比为1:0.1~10。
进一步优选,所述低粘度矿物油与所述高粘度矿物油的重量比为1:0.4~2.5。
本发明中,基础油采用特定重量比的低粘度矿物油和高粘度矿物油的混合物使得该润滑脂体系综合性能更佳,尤其是在优选比例及粘度条件下的低粘度矿物油和高粘度矿物油能够更好地发挥协同作用,降低润滑脂之间的内摩擦力,使其在轴承中的流动性得到明显改善。
根据本发明,润滑脂组合物中稠化剂是从由锂皂、锂钙皂、复合锂皂、复合钙皂、复合锂钙皂组成的组中选择的至少一种。这种组合可以是单皂,例如:锂皂,也可以是混合皂,例如:锂钙皂,还可以是复合皂,例如:复合锂、复合钙、复合锂钙皂。
作为优选,所述稠化剂选自锂皂、复合锂皂和复合钙皂中的一种或多种。
作为优选,所述极压抗磨添加剂选自磷酸三苯酯、亚磷酸正丁酯、环烷酸铅、二戊基二硫代氨基甲酸铅、二丁基二硫代氨基甲酸铅、磷酸酯、二烷基二硫代磷酸锌、二硫化钼、三氧化二锑十六烷基硼酸酯和纳米二氧化钛中的一种或多种。
进一步优选,所述极压抗磨剂选自二丁基二硫代氨基甲酸铅、三氧化二锑、十六烷基硼酸酯和纳米二氧化钛中的一种或多种;优选的,所述极压抗磨剂为二丁基二硫代氨基甲酸铅和三氧化二锑复配,二丁基二硫代氨基甲酸铅和三氧化二锑的质量比例为1:0.5~2。本发明中,在上述基础油和稠化剂体系中通过添加特定极压抗磨添加剂能够显著降低摩擦系数,减少托辊的旋转阻力,进一步提升润滑脂的抗磨性能。
进一步优选,所述轴承润滑脂按照重量份计的组分如下:基础油64~72份,稠化剂9~15份,极压抗磨剂17~23份。本发明中,在上述用量的基础油、稠化剂和极压抗磨添加剂能够进一步改善润滑脂综合性能,还能够进一步提高润滑脂的极压抗磨性能,减少能耗,降低运营成本,提高设备的使用寿命。
第二方面,本发明提供的所述轴承润滑脂的制备方法,包括:在基础油存在的情况下,进行皂化反应,制备所述稠化剂,加入余量的所述基础油,然后加入极压抗磨剂,进行搅拌和研磨。
作为优选,包括如下步骤:将所用的脂肪酸投入基础油中充分溶化,得到脂肪酸油溶液;将所用的碱溶于水中形成水溶液,或所用的碱与无机酸反应后分散形成油水分散液;将所述水溶液或所述油水分散液加入所述脂肪酸油溶液中进行反应;升温至最高炼制温度,加入余量基础油进行冷却,加入所述极压抗磨剂,进行后处理。本发明中,通过对制备工艺进行优化,尤其是在上述基础油比例和特定极压抗磨剂经本发明工艺制备,能够更有效改善摩擦学性能,减少摩擦阻力,最终使机械得到更充分润滑,显著提高机械效率。
进一步优选,包括如下步骤:将所用的脂肪酸投入部分基础油中在80~90℃温度下充分溶化,得到脂肪酸油溶液;将所用的碱在90~105℃温度下溶于水中形成水溶液,或所用的碱与无机酸反应后分散形成油水分散液;将所述水溶液或所述油水分散液加入所述脂肪酸油溶液中,在100~120℃温度下进行反应;当所述轴承润滑脂为复合皂基润滑脂时,需加入二元酸进行二步反应;反应完成后升温至最高炼制温度200~220℃,加入余量基础油进行冷却;冷却至100~120℃加入所述极压抗磨剂,研磨,得到润滑脂成品。本发明中,通过对制备工艺参数进行优化,在上述炼制条件下,能够进一步有效降低磨损和擦伤,有效提高润滑脂的载荷性能,减少能源消耗,延长机械的使用寿命。
本发明的有益效果至少在于:本发明提高的特定基础油、稠化剂、特定极压抗磨剂组合的轴承润滑脂,可以明显提升锂皂、锂钙皂、复合锂皂、复合钙皂基润滑脂的极压抗磨性和高温润滑寿命等综合性能,并可以明显提升锂皂、锂钙皂基润滑脂的滴点,采用SH/T0428标准试验方法进行测试与现有技术相比可提升润滑寿命3倍以上。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将对本发明实施例中的技术方案进行清楚、完整地描述,以下实施例用于说明本发明,但不用来限制本发明的范围。实施例中未注明具体技术或条件者,按照本领域内的文献所描述的技术或条件,或者按照产品说明书进行。实施例中的实施条件可以根据具体的实验条件或者工厂条件进一步的调整,未注明实施条件的通常为常规实验中的条件。
下述实施例中所用的材料、试剂等,如无特殊说明,均可从商业途径得到。
以下实施例用于说明本发明,但不用来限制本发明的范围。
实施例1
将130g12-羟基硬脂酸将入400g基础油中,基础油为250g500SN(100℃粘度为11mm2/s)和150g150BS(100℃粘度为29mm2/s)的混合物,升温至87℃使12-羟基硬脂酸完全溶化于基础油中。将10g氢氧化锂加入50g水中,加热至100℃使一水合氢氧化锂完全溶化。将氢氧化锂溶液缓慢加入已制备好12-羟基硬脂酸油溶液中进行反应,同时进行搅拌。加料完毕将物料温度升至110℃,持续反应60min。随后将物料升温至215℃,加入200g500SN和100g150BS,使物料快速降温。降温至107℃时。加入200g极压抗磨剂三氧化二锑,搅拌均匀。经过三辊机研磨三遍后得到锂基润滑脂。
实施例2
将130g12-羟基硬脂酸将入430g基础油中,基础油为230g500SN(100℃粘度为11mm2/s)和200g150BS(100℃粘度为29mm2/s)的混合物,升温至85℃使12-羟基硬脂酸完全溶化于基础油中。将10g氢氧化锂加入50g水中,加热至97℃使一水合氢氧化锂完全溶化。将氢氧化锂溶液缓慢加入已制备好12-羟基硬脂酸油溶液中进行反应,同时进行搅拌。加料完毕将物料温度升至110℃,持续反应60min。随后将物料升温至210℃,加入130g500SN和120g150BS,使物料快速降温。降温至110℃时,加入180g极压抗磨剂十六烷基硼酸酯,搅拌均匀。经过三辊机研磨三遍后得到锂基润滑脂。
实施例3
将110g12-羟基硬脂酸将入400g基础油中,基础油为250g500SN(100℃粘度为11mm2/s)和150g150BS(100℃粘度为29mm2/s)的混合物,升温至85℃使12-羟基硬脂酸完全溶化于基础油中。将9g一水合氢氧化锂加入45g水中,加热至100℃使氢氧化锂完全溶化。将氢氧化锂溶液缓慢加入已制备好12-羟基硬脂酸油溶液中进行反应,同时进行搅拌。加料完毕将物料温度升至115℃,持续反应60min。随后将物料升温至210℃,加入200g500SN和100g150BS,使物料快速降温。降温至115℃时,加入极压抗磨剂120g三氧化二锑和100g纳米二氧化钛,搅拌均匀。经过三辊机研磨三遍后得到锂基润滑脂。
实施例4
将120g12-羟基硬脂酸将入300g基础油中,基础油为200g500SN(100℃粘度为11mm2/s)和100g150BS(100℃粘度为29mm2/s)的混合物,升温至86℃使12-羟基硬脂酸完全溶化于基础油中。将7g氢氧化锂和3g氢氧化钙加入60g水中,加热至102℃充分溶解。将氢氧化锂、氢氧化钙溶液缓慢加入已制备好12-羟基硬脂酸油溶液中进行反应,同时进行搅拌。加料完毕将物料温度控制至113℃,持续反应60min。随后将物料升温至217℃,加入200g500SN和150g150BS,使物料快速降温。降温至113℃时,加入80g二丁基二硫代氨基甲酸铅和120g三氧化二锑的混合物,搅拌均匀。经过三辊机研磨三遍后得到锂基润滑脂。
实施例5
用11g氢氧化钙将入70g水中搅拌形成悬浊液。将上述悬浊液加入330g基础油中,保持搅拌,基础油为200g500SN(100℃粘度为11mm2/s)和130g150BS(100℃粘度为29mm2/s)的混合物。向上述混合物中加入20g醋酸,反应40min。对上述物料进行升温,升温至100℃加入110g硬脂酸,反应40min。随后加入10g丙酸,反应40min。升温至215℃,加入250g500SN和100g150BS,降温至至115℃时,加入230g极压抗磨剂纳米二氧化钛,搅拌均匀。经过三辊机研磨三遍后得到复合钙基润滑脂。
实施例6
将130g12-羟基硬脂酸将入450g基础油中,基础油为250g500SN(100℃粘度为11mm2/s)和200g150BS(100℃粘度为29mm2/s)的混合物,升温至88℃使12-羟基硬脂酸完全溶化于矿物油中。将10g氢氧化钙加入70g水中,加热至80~85℃使氢氧化钙完全溶化。将氢氧化钙溶液缓慢加入已制备好12-羟基硬脂酸油溶液中进行反应,同时进行搅拌。加料完毕将物料温度升至95℃,持续反应60min。随后将物料升温至210℃,加入150g500SN和100g150BS,使物料快速降温。降温至110℃时,加入110g二丁基二硫代氨基甲酸铅和90g十六烷基硼酸酯的混合物,搅拌均匀。经过三辊机研磨三遍后得到钙基润滑脂。
实施例7
将150g12-羟基硬脂酸将入380g基础油中,基础油为210g500SN(100℃粘度为11mm2/s)和170g150BS(100℃粘度为29mm2/s)的混合物,升温至88℃使12-羟基硬脂酸完全溶化于基础油中。将10g氢氧化锂加入70g水中,加热至95℃使一水合氢氧化锂完全溶化。将氢氧化锂溶液缓慢加入已制备好12-羟基硬脂酸油溶液中进行反应,同时进行搅拌。加料完毕将物料温度升至115℃,持续反应60min。随后将物料升温至210℃,加入220g500SN和200g150BS,使物料快速降温。降温至105℃时,加入140g十六烷基硼酸酯和90g纳米二氧化钛的混合物,搅拌均匀。经过三辊机研磨三遍后得到锂基润滑脂。
对比例1
将130g12-羟基硬脂酸将入350g基础油中,基础油为350g150BS(100℃粘度为29mm2/s),升温至87℃使12-羟基硬脂酸完全溶化于基础油中。将10g氢氧化锂加入50g水中,加热至95℃使一水合氢氧化锂完全溶化。将氢氧化锂溶液缓慢加入已制备好12-羟基硬脂酸油溶液中进行反应,同时进行搅拌。加料完毕将物料温度升至110℃,持续反应60min。随后将物料升温至210℃,加入550g150BS,使物料快速降温。降温至115℃时,加入220g极压抗磨剂亚磷酸二正丁酯,搅拌均匀。经过三辊机研磨三遍后得到锂基润滑脂。
实验例1
对实施例1~7和对比例1得到的润滑脂进行性能测试(测试结果见表1)。
表1润滑脂性能测试结果
从表1数据中可看出,本发明实施例制备的润滑脂表现出优异的机械安定性能,良好的极压抗磨性、以及良好的减摩性能等。完全符合轴承润滑脂的要求和工况条件。
虽然,上文中已经用一般性说明及具体实施方案对本发明作了详尽的描述,但在本发明基础上,可以对之作一些修改或改进,这对本领域技术人员而言是显而易见的。因此,在不偏离本发明精神的基础上所做的这些修改或改进,均属于本发明要求保护的范围。
Claims (1)
1.一种轴承润滑脂,其特征在于,将120g 12-羟基硬脂酸将入300g基础油中,基础油为200g 100℃粘度为11mm2/s的500SN和100g 100℃粘度为29mm2/s的150BS的混合物,升温至86℃使12-羟基硬脂酸完全溶化于基础油中;将7g氢氧化锂和3g氢氧化钙加入60g水中,加热至102℃充分溶解;将氢氧化锂、氢氧化钙溶液缓慢加入已制备好12-羟基硬脂酸油溶液中进行反应,同时进行搅拌;加料完毕将物料温度控制至113℃,持续反应60min;随后将物料升温至217℃,加入200g500SN和150g 150BS,使物料快速降温;降温至113℃时,加入80g二丁基二硫代氨基甲酸铅和120g三氧化二锑的混合物,搅拌均匀;经过三辊机研磨三遍。
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