订阅最新相关文献

The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and an ashless antioxidant. The ashless antioxidant may be selected from phenolic compounds, aryl amine compounds, and sulfurized olefins, especially 2,6-hindered phenols and diarylamine compounds.

The present invention relates to a lubricant composition suitable for use in an electric vehicle. The lubricant composition comprises a traction coefficient additive and wherein the traction coefficient additive is an ester, said ester being the reaction product of at least one saturated branched-chain aliphatic monohydric alcohol having between 12 and 32 carbon atoms and at least one aliphatic carboxylic acid having between 6 and 32 carbon atoms. The lubricant composition as described herein provides an electric vehicle gear oil and imparts desirable coefficient of traction properties when in use.

[Problem] To provide a metalworking oil composition. [Solution] The present invention is a metalworking oil composition which contains: (a1) an ester of a fatty acid and a linear aliphatic monoalcohol; (a2) a base oil other than the component (a1); and (b) a pour- point depressant containing a sulfurized oil, where the component (a1) content is within a range from 20 to 75 wt% in terms of the total amount of the composition.

本发明公开了一种抗斑渍防锈油复合剂组合物及其制备方法，其中，该抗斑渍防锈油复合剂组合物的组分及含量按质量百分比计为：复合酸钙防锈剂5～40％；磺酸钡防锈剂20～70％；有机羧酸类防锈剂5～20％；成膜剂5～20％；有色金属缓蚀剂0.1～3％；抗氧剂0.3～1.0％；助溶剂5～15％；基础油5～15％。本发明提供的抗斑渍防锈油复合剂组合物，在保持抗盐雾性能和抗湿热性能不下降的同时，还具有优秀的抗斑渍性能。

Embodiments of lubricant compositions that may comprise a lubricant oil and a corrosion inhibitor, wherein the corrosion inhibitor may comprise a polymerizable-acid graft polymer that may comprise from about 3.0% to about 35% by weight of an unsaturated grafting acid and an alkylene oxide polymer backbone, the alkylene oxide polymer backbone having the formula: Rx2033;x2014;[(OCnH2n)zx2014;ORx2032;]a wherein each Rx2032; in the formula may be independently selected from the group consisting of a hydrogen atom, hydrogen radicals, and acyl radicals, wherein each Rx2033; in the formula may be independently selected from the group consisting of a hydrogen atom, hydrogen radicals, amine-containing radicals, and acyl radicals, wherein each “n” in the formula may independently have a value of from 2 to 4, wherein each “Z” in the formula may independently have a value of from 4 to about 1800, and wherein “a” may have a value of from 1 to 4.

本申请属于润滑油技术领域，具体涉及一种润滑油组合物及其制备方法。本申请所述润滑油组合物，包括线性硅氧烷、有机改性聚硅氧烷和季戊四醇酯。本申请的有益效果包括：本申请所述润滑油组合物中线性硅氧烷和有机改性聚硅氧烷拥有较低的低温黏度，并且具有较强的相容性，可与季戊四醇酯互溶改善其低温下黏度较大的特性；本申请制备方法得到的混合润滑体系具有混合方式简单、均一性优良、可混合量大等特点，适合工业化生产。

To provide a new water-soluble metal working fluid improved in various performances so as to be more easily applicable to metal working than conventional ones even as an emulsion type or soluble type oil agent.SOLUTION: The water-soluble metal working fluid comprises a base oil (A) containing an oil-soluble polyalkylene glycol (A1) and has a total content of water-soluble polyalkylene glycol and methoxypolyethylene glycol of less than 60 mass% based on the total amount excluding water.SELECTED DRAWING: None

本发明涉及一种具有焊渣飞溅防止功能的防锈油及其使用方法，其组分及各成分质量百分比为：石油磺酸盐5‑20%，羊毛脂及其衍生物0.5‑1%，乳化剂0.1‑1.0%，焊渣飞溅防止凝胶1‑10%，矿物油余量。本发明与其他焊渣飞溅防止产品的创新点在于本产品为矿物油基产品，具有工序防锈效果，同时兼备焊渣飞溅防止性，其焊渣飞溅防止效果可达100%。本发明具有很好的去除性，涂在车身零件表面用一般的碱性清洗剂即可去除，不影响后续涂装工艺。

The present invention relates to a method for manufacturing a liquid additive comprising an amine of the formula (1) where the method comprises the steps of alkylating phenyl-alpha-naphthylamine with an olefin selected from linear or branched C8-C12 alkenes to obtain a first raw product comprising the amine of the formula (1); distilling off unreacted olefin from the first raw product to obtain a second raw product; and distilling off unreacted phenyl-alpha-naphthylamine from the second raw product to obtain the liquid additive. The invention also relates to a liquid additive comprising an amine of the formula (1) and phenyl-alpha-naphthylamine, where the liquid additive comprises at least 95 wt % of the amine of the formula (1), and where the concentration of the phenyl-alpha-naphthylamine in the liquid additive is below 0.2 wt %, preferably below 0.1 wt %. It further relates to a use of the liquid additive as in lubricants.

本发明公开了一种界面耦合型二维材料润滑添加剂及其制备方法。该润滑剂由黑磷纳米片、表面功能化改性六方氮化硼纳米片及含氮杂环硼酸酯组成，其中含氮杂环硼酸酯作为桥连单元，一方面与表面功能化改性六方氮化硼表面活性位点发生化学键合或强化界面相互作用，另一方面与黑磷表面磷原子形成配位相互作用，从而构建稳定的三相界面耦合结构。所述复合润滑添加剂在润滑油体系中具有良好的分散稳定性，能够在摩擦界面形成稳定的复合边界润滑膜，显著提升润滑体系的减摩抗磨性能及承载能力，适用于变压器油、矿物油等润滑体系。