grease润滑油基本知识介绍.pptx

April, 99
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MAPPL grease presentation 1
Definition定义
A lubricating grease is a firm to semi-fluid product obtained by the dispersion of 2 to 15% of a thickening agent into a lube base oil.
润滑脂是一种在基础油中加入2-15%稠化剂的
硬至半流体的产品。
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MAPPL grease presentation 1
Composition 组成
What is grease 滑脂是什么?
90% oil + additives 90%的基础油和添加剂
10% thickener 10%的稠化剂
Grease is typically 90% Oil plus Additives and
10% Thickener.
滑脂的典型组成是90%的基础油和添加剂加上10%的稠化剂
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MAPPL grease presentation 1
Composition 组成
Types of Thickeners 稠化剂种类
Soap 皂基
Non-soap 非皂基
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MAPPL grease presentation 1
Composition 组成
Thickeners used by Mobil 美孚使用的稠化剂
Lithium (Soap) 锂(皂基)
plex (Soap) 复合锂(皂基)
Clay (Non-soap) 粘土(非皂基)
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MAPPL grease presentation 1
Composition 组成
Soap Thickener 皂基稠化剂
碱+ 脂肪酸皂基+水
Alkali + Fatty Acid Soap + Water
Saponification
皂化
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MAPPL grease presentation 1
Composition 组成
Non Soap Thickener 非皂基
Clay 粘土
Polar
Activator
Clay Platelet Stack
粘土片堆
Polar Activator极性和性剂
Partially Separated Platelet
Stack Trapping Oil
部分分离的粘土片间充满油品
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MAPPL grease presentation 1
Properties Of Grease Thickeners滑脂稠化剂性能
Maximum最高使用
Usage 癈温度
Mechanical
Stability稳定性
Lithium * 锂
120
Excellent极佳
plex * 复合锂
175
Excellent
Clay * 粘土
175
Good 好
Sodium 钠
125
Good
Polyurea 聚脲
175
Poor - Good
plex 复合钙
175
Poor - Good
plex 复合铝
175
Good
*
Used in Mobil Products
April, 99
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MAPPL grease presentation 1
Composition组成
Base fluids used by Mobil 美孚使用的基础油
Mineral Paraffinic 石蜡基
矿物 Naphthenic 环烷基
Synthetic Polyalphaolefin聚α烯烃
合成 Ester 酯
Polyglycol 聚多元醇
Alkylated Aromatics 烷化芳香烃
Vegetable Natural Esters植物油天然酯
Viscosity Range : ISO VG 22 to ISO VG 1500粘度范围
April, 99
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MAPPL grease presentation 1
Composition组成
Additives used by Mobil美孚使用的添加剂
Soluble : Antioxidant 抗氧化剂
溶液 Antirust 防锈剂
Antiwear / extreme pressure 抗磨/ 极压添加剂
Antifatigue 抗疲劳添加剂
Friction modifiers 摩擦改良剂
Polymers 聚合物
Solid : Molybdenum disulfide 二硫化