Shield tail seal grease suitable for high-temperature and low-temperature environments and preparation method thereof
A low-temperature environment, shield tail sealing technology, applied in the petroleum industry, lubricating compositions, etc., can solve the problems of shield tail seal grease thinning, poor water resistance and pressure-holding performance, shield tail seal grease hardening, etc., to achieve enhanced Adhesiveness, good water-resistance sealability, enhanced stability effect
Active Publication Date: 2019-05-10
湖北坤能科技有限公司
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Problems solved by technology
[0006] The technical problem to be solved is: the existing shield tail sealing grease is greatly affected by temperature, the shield tail sealing grease will harden at low temperature, and the pumpability will become poor, and the shield tail sealing grease will become thinner at hig
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The invention relates to the technical field of shield tail seal grease, and discloses shield tail seal grease suitable for high-temperature and low-temperature environments and a preparation method thereof. The shield tail seal grease comprises the following ingredients in parts by weight: 35-70 parts of powdery filler, 10-25 parts of base oil, 10-25 parts of a thickening agent, 10-20 parts of atackifier, 3-5 parts of fiber, 1-5 parts of a fire retardant and 3-5 parts of a thixotropic agent. According to the shield tail seal grease, the ingredients are simple, the cost is low, the preparation is easy, and the sealing performance is good.
Description
technical field [0001] The invention relates to the technical field of shield tail sealing grease, in particular to a shield tail sealing grease suitable for high temperature and low temperature environments and a preparation method thereof. Background technique [0002] In recent years, the number of tunnel projects has gradually increased. In order to meet people's needs, more and more large-depth tunnel projects have been constructed. The key factor of the whole tunnel construction quality, therefore, tunnel engineering construction must pay attention to shield tail waterproof sealing construction. [0003] Shield construction is the main method of urban rail transit tunnel construction. Shield tail sealing grease is the main material for sealing and waterproofing in shield construction. During the tunneling process of the shield machine, there is a gap between the shield shell and the outer wall of the segment. When water and sediment outside the shield shell enter the ...
Claims
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Login to view more IPC IPC(8): C10M169/00C10N30/08C10N40/34
Inventor 魏清宝许亮孙艳徐鹏舒海高心星蔡珩
Owner 湖北坤能科技有限公司
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