一种盾尾密封油脂的配方研究与性能表征

王德乾

doi:10.3973/j.issn.1672-741X.2013.04.004

隧道建设 >

2013 , Vol. 33 >Issue 4: 277 - 280

DOI: https://doi.org/10.3973/j.issn.1672-741X.2013.04.004

研究与探索

一种盾尾密封油脂的配方研究与性能表征

王德乾

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（中铁第五勘察设计院集团有限公司，北京 102600）

王德乾（1981—），男，山东潍坊人，2011年毕业于中国科学院化学研究所高分子化学与物理专业，博士，工程师，从事隧道工程高分子材料制品的研发工作。

收稿日期: 2012-12-10

修回日期: 2013-01-30

网络出版日期: 2013-04-12

基金资助

中铁五院科技创新基金资助项目（23077011）

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Formulation Research and Property Characterization of a Kind ofShield Tail Sealing Grease

WANG Deqian

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(China Railway 5th Survey and Design Institute Group Co., Ltd., Beijing 102600, China)

Received date: 2012-12-10

Revised date: 2013-01-30

Online published: 2013-04-12

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摘要

采用正交试验法获得了WY盾尾密封油脂的优化配方，其配方组成为性能优异的基础油、复合黏度指数改进剂、天然可降解纤维和颗粒填充剂等。采用自制抗水压密封装置和熔融流动速率仪表征其抗水压密封性和泵送性，并将其与国内外同类产品进行比较。结果表明，该产品的抗水压密封性能与CONDAT产品一致，在3.5 MPa下，不漏水；泵送性是国内某品牌油脂的2~3倍，使该性能指标进一步接近国际水平。

关键词： 盾尾密封油脂; 配方; 抗水压密封性; 熔融流动速率; 泵送性

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王德乾 . 一种盾尾密封油脂的配方研究与性能表征[J]. 隧道建设, 2013 , 33(4) : 277 -280 . DOI: 10.3973/j.issn.1672-741X.2013.04.004

Abstract

An optimized formulation of WY shield tail sealing grease is obtained by means of orthogonal test. The shield tail sealing grease is composed of highquality base oil, compound viscosity index improver, natural biodegradable fiber and particulate filling medium. Hereafter, the watertightness and pumpability of the mentioned grease are characterized by using selfmade watertightness test device and melt flow rate device. Comparison and contrast is made between the property of the mentioned grease and that of similar products made in China and abroad. The results show that the watertightness of the mentioned grease is consistent with that of CONDAT product and no water leakage occurs under 3.5 MPa pressure, while the pumpability of the mentioned grease is 2~3 times of that of a kind of grease made in China.

Key words： shield tail sealing grease; formulation; watertightness under high pressure; melt flow rate; pumpability

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