统一工程机械润滑油介绍.pptVIP

* * * * * * * This deal is an opportunity for two organisations that are very similar in many ways to come together… A common team will oversee the overall strategy in China, and ensure we deliver our goals and live up to our dreams and aspirations. Other than that, there will be minimal organisational changes as a result of this deal. Day-to-day management responsibility for Shell and Tongyi brands will remain separate. Emma Fitzgerald, who has been running Shell operations in China with great success for the past years will continue to lead Shell brands. While Li Jia, who has run Tongyi for over a decade will also remain responsible for the future success of Tongyi brands. I will now turn over to them to share with us a little more about each company, the incredible journeys they’ve had to get where we are today and share with you some of the excitement about the way forward. * 稠化剂对润滑脂性能的影响 0% 50% 100% 润滑脂 = 基础油 + 稠化剂 + 添加剂 滴点 剪切稳定性 抗水性 油分离 腐蚀保护 泵送性能 氧化稳定性 抗腐性能 极压性能 外观 软硬 - 针入度 抗水性能 - 水冲洗 基础油粘度 - 40°C运动粘度, 粘度指数 泵送性 - 表观粘度测试 低温性能 - 低温针入度 氧化稳定性 - SKF ROF轴承寿命测试 防锈性能 - SKF EMCOR 动力学腐蚀测试 极压及抗磨性能 - TIMKEN OK 负荷, 4球磨损, FZG 润润滑脂性能 高温性能 -滴点 测试方法 针入度测试 针入度随温度和剪切力而变化，受如下两因素影响 基础油粘度 增稠剂的化学性能 针入度大小用1/10 毫米表示( 25℃时 )，分工作前和工作后稠度 针入度范围－NLGI 分类( NLGI 000－6) NLGI 分类 000 00 0 1 2 3 4 5 6 445-475 400-430 355-385 310-340 265-295 220-250 175-205 130-160 85-115 半流体 半流体 软 较软 中软性 中软性 较硬 非常硬 非常硬 针入度 WORKED x 60 (mm-1) NLGI 级别 润滑脂的滴点  可以鉴别稠化剂的类型 大概的操作范围 复合皂基的滴点高于简单皂基 并不是 最高操作温度 滴点与操作温度 类型 滴点,C 最高操作 温度, C 简单锂基 175 120- 135 复合锂基 250+ 150 - 175 聚脲基 250+ 180 - 200 钙基 90 60 - 70 水合钙基 140 90 -110 复合钙基 260+ 190 - 220