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美孚潤滑油系列 > 潤滑脂 > Mobil Polyrex EP 2/美孚寶力達EP 2
Mobil Polyrex EP 2/美孚寶力達EP 2 詳細說明 (瀏覽1368次)

美孚寶力達EP 2

多用途潤滑脂

產品描述

美孚寶力達EP 2是一種剪切穩定的聚脲基潤滑脂具有優異的極壓(EP)和承載特性。專有的聚脲增稠劑體系表現出優良的耐氧化和油分離,在高的工作溫度為350°F。美孚寶力達EP 2隨著其優秀的高溫氧化穩定性,承載能力,剪切穩定性,耐水性和工作溫度范圍寬,是一個優秀的多用途潤滑脂,適用于廣泛的工業和建筑應用。

特點和優點

極端壓力保護及熱穩定性

美孚寶力達EP 2包含一個專有的極壓(EP)添加劑包,提供了承載能力不降低潤滑脂在高溫下的熱穩定性。常規的含硫和磷基抗極壓添加劑,使用在其他多用途潤滑脂開始迅速氧化在溫度高于250°F。美孚寶力達EP 2,另一方面,繼續提供高水平的抗磨和極壓保護到350°F無快速氧化的抗磨損或EP添加劑。

美孚寶力達EP 2出色的高溫潤滑壽命赫然展現在ASTM D 3336潤滑脂壽命測試 - 平均ASTM D 3336壽命為490小時,高溫潤滑壽命的3?5倍優于競爭多通用鋰基潤滑脂。

精湛的剪切穩定性

美孚寶力達EP 2專有的聚脲增稠劑體系中顯示出優異的耐久性和穩定性時,受到機械剪切力。例如,在ASTM D 217圓錐貫入試驗,約一NLGI級后,被工作了10萬招 - 高品質的復合鋰基潤滑脂的性能相似,這是基準的一致性美孚寶力達EP 2改變優良的剪切穩定性。與此相反,有競爭力的聚脲潤滑脂含有剪切不穩定的增稠劑技術可以由三個NLGI年級軟化,在相同的試驗條件下。良好的機械剪切穩定性在滾子軸承中的應用是很重要的,可能導致過多的油脂軟化從軸承潤滑脂泄漏或清除。

優異的耐水性

美孚寶力達EP 2配方增強防水聚合物,使得它形成了頑強的保護膜的應用程序中嚴重污染水。美孚寶力達EP 2中的抗水沖洗(ASTM D 1264)和水噴霧關閉測試(ASTM D 4049)獲得了優異的成績表明油脂的能力,留在原處,即使是在存在的壓水噴霧。

綜上所述,美孚寶力達EP 2提供了以下特點和優勢:

  • 杰出的高溫氧化穩定性
  • 優良的機械剪切穩定性
  • 熱穩定的極壓(EP)保護
  • 寬工作溫度范圍(-40°F至350°F)
  • 優異的抗水噴霧關閉和抗水沖洗

應用

美孚寶力達EP 2是一個優秀的多用途潤滑脂,適用于廣泛的工業和建筑應用。


典型屬性

美孚寶力達EP 2
稠化劑類型 聚脲
NLGI等級 2
顏色 綠色
基礎油粘度,ASTM D 445  
CST 40°C 235
CST @ 100℃ 18.4
礦物油粘??度指數,ASTM D 2270 85
滲透,ASTM D217工作,60X度,mm/10 280
錐入度,ASTM D217工作,10萬度,mm/10 310
滴點,ASTM D 2265,°C(°F) 280(535)
高溫潤滑脂壽命,ASTM D 3336,小時@ 177℃ 490
四球焊接ASTM D 2596公斤 500
四球磨損@ 1200轉,40千克75℃,1小時后,瘢痕直徑毫米 0.4
鐵姆肯OK承載能力,ASTM D 2509磅 45
低溫扭矩,ASTM D 4693,-40°C,NM 12.2
油分離試驗,AS??TM D 1742,% <0.3
噴水關閉,ASTM D 4049,% 15
水沖蝕,ASTM D 1264,@ 79°C,% 2.7
防銹保護,ASTM D 1743 通過


健康與安全

健康的皮膚狀況取決于清潔。油和油脂與皮膚接觸可能會導致汗腺和毛囊堵塞。這可能會導致皮膚過敏或皮炎。因此,防護手套,服裝和設備應該被磨損,應始終實踐和良好的個人衛生習慣。應及時從皮膚除去油,油脂和其他異物。沾污的衣服不應該停留在與皮膚接觸。美孚寶力達EP 2很容易從皮膚除去無水洗手劑洗滌用肥皂,溫水,和皮膚刷。它可以被刪除從服裝干洗溶劑或洗滌劑洗滌。如果美孚寶力達EP 2與眼睛接觸,用清水沖洗眼睛,直到刺激消退。

的所有油脂中的情況下,如果有一個與油脂污染,其中油脂注入身體組織,如“油脂槍損傷或損傷的穿刺傷,”及時的醫療援助應通過以下方式獲得。

警告:“空”的容器中保留有殘余物(液體和/或蒸汽),可能會有危險。不要增壓,切割,焊接,銅焊,焊焊,鉆,磨,或揭露這種容器受熱,火焰,火花或其他火源,可能會發生爆炸,造成人身傷害或死亡。不要試圖清理,因為殘留物難以去除,連一絲剩下的材料構成的爆炸性危險。“空”鼓應完全倒掉,正確遲鈍,并及時返回到桶維修。所有其他容器應棄置在環境安全的方式,并依照政府法規。

根據現有資料顯示,該產品預計不會對健康產生不利影響,使用時的用途和材料安全數據表(MSDS)中提供的建議遵循。MSDS可根據要求通過你的銷售合同辦公室,或通過互聯網。此產品不應該被用于其擬定用途以外的其他用途。如果處理用過的產品,照顧,以保護環境。


美孚字型,飛馬圖樣及Delvac MX均為埃克森美孚公司或其子公司之一,其附屬公司的注冊商標。  

 

版權所有?2001-2013埃克森美孚公司。保留所有權利。

   

Mobil Polyrex EP 2

Multi-purpose Grease

Product Description

Mobil Polyrex EP 2 is a shear-stable polyurea grease with excellent extreme-pressure (EP) and load-carrying characteristics. The proprietary polyurea thickener system exhibits excellent resistance to oxidation and oil separation at operating temperatures as high as 350°F. With its outstanding high-temperature oxidation stability, load-carrying capability, shear stability, water resistance and wide operating temperature range, Mobil Polyrex EP 2 is an excellent multi-purpose grease for a wide array of industrial and construction applications.

Features and Benefits

EXTREME-PRESSURE PROTECTION AND THERMAL STABILITY

Mobil Polyrex EP 2 contains a proprietary extreme-pressure (EP) additive package that provides load-carrying capability without degrading the thermal stability of the grease at high temperatures. Conventional sulfur- and phosphorus-base EP additives used in other multi-purpose greases begin to oxidize rapidly at temperatures above 250°F. Mobil Polyrex EP 2, on the other hand, continues to provide a high level of wear and extreme-pressure protection up to 350°F without rapid oxidation of the anti-wear or EP additives.

The outstanding high temperature lubrication life of Mobil Polyrex EP 2 is impressively demonstrated in the ASTM D 3336 grease life test - with an average ASTM D 3336 life of 490 hours, 3 to 5 times better than the high-temperature lubrication life of competitive multi-purpose lithium-base greases.

SUPERB SHEAR STABILITY

The proprietary polyurea thickener system in Mobil Polyrex EP 2 exhibits excellent durability and stability when subjected to a mechanical shearing force. For example, in the ASTM D 217 cone penetration test, the consistency of Mobil Polyrex EP 2 changed by approximately one NLGI grade after being worked for 100,000 strokes - similar to the performance of high-quality lithium-complex greases, which are the benchmark for excellent shear stability. By contrast, competitive polyurea greases containing shear-unstable thickener technology can soften by three NLGI grades under the same test conditions. Good mechanical shear stability is important in roller bearing applications where excessive grease softening may lead to grease leakage or purging from the bearing.

EXCELLENT WATER RESISTANCE

The Mobil Polyrex EP 2 formulation is enhanced with water-resistant polymers that enable it to form a tenacious protective film in applications that are heavily contaminated with water. The excellent results obtained for Mobil Polyrex EP 2 in the water washout (ASTM D 1264) and water spray-off (ASTM D 4049) tests demonstrate the grease's ability to stay in place, even in the presence of a pressurized water spray.

In summary, Mobil Polyrex EP 2 offers the following features and benefits:

  • Outstanding high-temperature oxidation stability
  • Excellent mechanical shear stability
  • Thermally stable extreme-pressure (EP) protection
  • Wide operating temperature range (-40 F to 350 F)
  • Exceptional resistance to water spray-off and water washout

Applications

Mobil Polyrex EP 2 is an excellent multi-purpose grease for a wide array of industrial and construction applications.


Typical Properties

Mobil Polyrex EP 2
Thickener Type Polyurea
NLGI Grade 2
Color Green
Base Oil Viscosity, ASTM D 445  
cSt @ 40°C 235
cSt @ 100°C 18.4
Mineral Oil Viscosity Index, ASTM D 2270 85
Penetration, ASTM D217 worked, 60x, mm/10 280
Penetration, ASTM D217 worked, 100,000, mm/10 310
Dropping Point, ASTM D 2265, °C (°F) 280 (535)
High Temperature Grease Life, ASTM D 3336, Hours @ 177°C 490
4-Ball Weld, ASTM D 2596, kg 500
4-Ball Wear Scar Diameter, @1200 rpm, 40kg, 75°C, 1 Hour, mm 0.4
Timken OK Load, ASTM D 2509, lb 45
Low Temperature Torque, ASTM D 4693, -40°C, Nm 12.2
Oil separation test, ASTM D 1742, % ?0.3
Water Spray-off, ASTM D 4049, % 15
Water Washout, ASTM D 1264, @ 79°C, % 2.7
Rust Protection, ASTM D 1743 Pass


Health and Safety

Healthy skin condition depends on cleanliness. Oils and greases in contact with skin can result in plugging of sweat glands and hair follicles. This may lead to skin irritation or dermatitis. Accordingly, protective gloves, clothing and equipment should be worn and good personal hygiene should always be practiced. Oils, greases, and other foreign materials should be removed from the skin promptly. Soiled clothing should not remain in contact with the skin. Mobil Polyrex EP 2 is readily removed from the skin by waterless hand cleaners followed by washing with soap, warm water, and a skin brush. It can be removed from clothing by dry-cleaning with solvents or by washing with laundry detergents. If Mobil Polyrex EP 2 comes in contact with the eyes, flush the eyes with fresh water until the irritation subsides.

As in the case of all greases, if there is a puncture wound with grease contamination, or an injury where grease is injected into body tissue, such as a "grease gun injury," prompt medical assistance should be obtained.

WARNING: "Empty" containers retain residue (liquid and/or vapor) and can be dangerous. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose such containers to heat, flame, sparks or other sources of ignition; they may explode and cause injury or death. Do not attempt to clean since residue is difficult to remove, and even a trace of remaining material constitutes an explosive hazard. "Empty" drums should be completely drained, properly bunged, and promptly returned to a drum reconditioner. All other containers should be disposed of in an environmentally safe manner and in accordance with governmental regulations.

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed.  MSDS's are available upon request through your sales contract office, or via the Internet.  This product should not be used for purposes other than its intended use.  If disposing of used product, take care to protect the environment.


The Mobil logotype, the Pegasus design and Delvac are trademarks of ExxonMobil Corporation, or one of its subsidiaries.  

 

Copyright ? 2001-2013 Exxon Mobil Corporation. All rights reserved.

   

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