Biobased Lubricants for Tunnel Boring Machines

机译：隧道掘进机用生物基润滑剂

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Special seal compounds have been developed over the last two decades based on the requirements of major Tunnel Boring Machine (TBM) manufacturers to help protect major rotating elements such as the TBM main bearing (front end of TBM) from water, mud and dust and to seal off the tail end of the TBM from the ingress of water. The main features of seal compounds are good water resistance and tackiness for maximum sealing capabilities as well as good pumpability and ease of product distribution. In addition, environmental friendliness along with fire resistance properties are highly desired. Front seal compounds provide also a lubrication function for the extra protection of the elastomer lip seals used for the rotary elements of most TBMs. Two products, based on biodegradable base oils, were developed for this purpose. Tested against conventional polymeric compounds in a major city subway tunneling system as well as in urban sewage networks, these products showed excellent sealing capabilities and outstanding lubrication performance leading to a tangible reduction in product consumption.

机译：在过去的二十年中，根据主要的隧道掘进机（TBM）制造商的要求开发了特殊的密封剂，以帮助保护主要的旋转元件（例如TBM主轴承（TBM的前端））免受水，泥土和灰尘的侵害。将TBM的末端从进水处密封。密封胶的主要特征是具有良好的耐水性和粘性，可最大程度地提高密封性能，并具有良好的泵送性和易于分配的产品。另外，非常需要环境友好性和耐火性。前密封胶还提供润滑功能，以额外保护大多数TBM旋转元件所用的弹性体唇形密封。为此目的，开发了两种基于可生物降解基础油的产品。这些产品在主要城市地铁隧道系统和城市污水网络中经过了常规聚合物化合物的测试，显示出出色的密封性能和出色的润滑性能，从而切实减少了产品消耗。

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来源
《National Lubricating Grease Institute 2007 Annual Meeting; 20070609-12; Scottsdale,AZ(US)》|2007年|P.1-216|共3页
会议地点 ScottsdaleAZ(US)
作者
Hocine Faci; Bob Cisler;
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作者单位

BP/Castrol 150W. Warrenville Rd Naperville, IL 60563;

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原文格式 PDF
正文语种 eng
中图分类机械摩擦、磨损与润滑;
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Biobased Lubricants for Tunnel Boring Machines

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