簡 介
美孚高溫滑脂是以非皂基增稠劑制成之高溫滑脂,專用于工業上一般滑脂無法抵受之長期高溫,或溫度循環變化於常溫以至極高溫之間的情況。本系列滑脂對因高溫而引起之氧化、硬化或軟化引致泄漏，有特出的抵抗能力，在潮濕的環境下，亦能防止腐蝕。美孚高溫滑脂78含有二硫化鉬。
優點
·對鋼鐵及有色金屬均能提供良好的防腐蝕保護
·減低高溫泄漏現象
·保持良好的低溫使用性能
·與一般滑脂比較，適用之溫度范圍較大而使用壽命亦較長
用 途
美孚高溫滑脂適用於長期操作於攝氏150度至175度的滑動軸承及滾動軸承。火爐輸送帶、窯車、紙廠的烘乾機及起紋機之軸承，因其溫度經常循環變化於常溫及高溫之間，故應采用本系列滑脂。軸承內滑脂之清除、更換、及添補滑脂之頻率，要視乎滑脂暴露于高溫的程度而定。
性質
·應用溫度范圍廣闊，并能維持原有之結構及硬度能抵抗水、蒸氣、溫和酸性或堿性液體的沖洗
·揮發性低，減低因受高溫而硬化之程度
·防蝕及抗氧化
·容易泵送
Product Descr1ption
Mobiltemp 78 grease is a non-soap thickened, high temperature greases for industrial applications where the capability of conventional greases may be exceeded by either continuous high temperature or cyclic conditions ranging from normal to extremely high temperatures. It is remarkably resistant to high temperature oxidation, to high temperature hardening or softening (and subsequent leakage) and provide
good protection from corrosion in humid atmospheres. Mobiltemp 78 contains Molybdenum Disulfide.
Benefits
· Provides good corrosion protection for both steel and non-ferrous metals
· Minimizes leakage at high temperature
· Maintains good low temperature dispensability
· Provides longer service life over a wider temperature range than conventional greases
Application
The Mobiltemp 78 grease is recommended for the lubrication of plain and antifriction bearings operating continuously in the 150 ℃ to 175 ℃ range or under conditions where bearings are repeatedly cycled from normal ambient temperatures to the range encountered in equipment such as oven conveyors, kiln car bearing and paper mill dryers and corrugators. The frequency of purging and relubrication of bearings is a function of the extent of exposure of the grease to high temperature and can only be determined on a case by case basis.
Properties
· Highly resistant to changes in structure and consistency over a wide temperature range
· Resistant to washout by water, steam and mild acidic or alkaline washes
· Exhibit low volatility to minimize hardening at high temperature
· Corrosion and oxidation inhibited
· Good pumpability
| Characteristics 特 性 | 以 下 所 列 數 據 除 特 別 注 明 外， 均 為 典 型 值
Typical values unless otherwise stated | Mobiltemp 78
美 孚 高 溫 滑 脂 78 | NLGI Grade
NLGI 編 號 | 1 | Structure
結 構 | Smooth
光 滑 | Soap type 皂 基
Percent 百 分 比 | Modified Clay 改 良 粘 土
8 | Penetration, 25 ℃
Worked 60 x
操 作 60 次 后 針 入 度 25 ℃ | 290 / 340 | Dropping Point, ℃ min.
最 低 滴 點 ℃ | 260 | Mineral Oil Viscosity 礦 物 油 粘 度
cSt @ 40 ℃
@40 ℃ 厘 斯
cSt @ 100 ℃
@100 ℃ 厘 斯 | 471
31.7 | Four-Ball Wesr Scar
mm, Max., ASTM D-2266
4 球 壓 試 驗，最 大 磨 損 疤 痕 直 徑, 毫 米 | 0.6 | Corrosion Protection 防 腐 蝕 試 驗
Copper Strip, FTM 5309
24 hrs. @ 99 ℃
@ 銅 片，在 99 ℃ 下 24 小 時
Steel Strip, FTM 5309
24 hrs. @ 99 ℃
@ 鋼 片，在 99 ℃ 下 24 小 時 | Pass
通 過
Pass
通 過 |
|
