Shield tail sealing grease and manufacturing method thereof
A shield tail seal and manufacturing method technology, applied in chemical instruments and methods, petroleum industry, mixers, etc., can solve problems such as unsatisfactory sealing and water resistance, reduced product pumping performance, grease pump wear, etc., to achieve saving Effect of mixing time, enhanced water resistance and integrity, good pumpability
Active Publication Date: 2021-02-26
杭州德瑞新型材料科技有限公司
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Problems solved by technology
At present, the pumpability of domestic oil is low, and the sealing and water resistance cannot meet the construction requirements in an environment with abundant groundwater and high pressure; at the same time, large-sized sheets such as mica sheets are used as leak-proof materials in China, and long-term use will cause damage. Grease pumps create wear and reduce product pumpability
Method used
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[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0028] A shield tail sealing grease, which includes a shield tail sealing grease, which is characterized in that it consists of the following components by weight percentage: 26% to 28% of base oil, 0.5% to 1.5% of lubricant, and 15% of tackifier ~20%, fiber 11%~16%, adhesion promoter 2%~4%, powder filler balance.
[0029] The present invention also provides a method for manufacturing shield tail sealing grease, the steps are as follows:
[0030] Step 1: First, add the base oil and tackifier into the stirring equipment for stirring, and at the same time, heat the stirring equipment to 85°C-90°C and keep the constant temperature until the base oil and the tackifier are completely mixed evenly;
[0031] Step 2, after the mixture of base oil and tackifier is cooled to 50-55°C, keep constant temperature and add lubricant, adhesion promoter and pow...
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The invention discloses shield tail sealing grease and a manufacturing method thereof. The shield tail sealing grease is composed of the following components in percentage by weight: 26-28% of base oil, 0.5-1.5% of lubricant, 15-20% of tackifier, 11-16% of fiber, 2-4% of adhesion promoter and the balance of powder filler. With the shield tail sealing grease and the manufacturing method thereof adopted, a grease pump can be prevented from being abraded; a mixture in a stirring barrel can be fully stirred, so that the stirring time is saved while the stirring quality is improved, and the workingefficiency is improved; the cleaning of the inner side wall of the stirring barrel is facilitated, so that the utilization rate and proportioning quality of raw materials are improved; and the designof the shield tail sealing grease is reasonable .
Description
technical field [0001] The invention relates to the technical field of grease, in particular to shield tail sealing grease and a manufacturing method thereof. Background technique [0002] At present, with the massive construction of underground projects such as subways and tunnels and the wide application of shield construction, shield tail sealing grease is one of the main supporting materials for the shield tail of shield tunneling machines in tunnels constructed by shield method, and has a broad market prospect. [0003] The lubricating and sealing function of the shield tail sealing grease can effectively protect the shield tail and isolate the mud, prevent the infiltration of muddy water and grout, and ensure the smooth advancement of the shield. At present, the pumpability of domestic oil is low, and the sealing and water resistance cannot meet the construction requirements in an environment with abundant groundwater and high pressure; at the same time, large-sized sh...
Claims
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IPC IPC(8): C10M169/04B01F7/00B01F7/18B01F15/00B01F15/02C10N50/10C10N30/02C10N30/06
CPCC10M169/048C10M2203/1006C10M2205/022C10M2205/024C10M2205/026C10M2215/102C10M2227/04C10M2201/062C10M2209/12B01F27/091B01F35/123B01F27/90B01F35/31B01F35/3204B01F35/717
Inventor 黄霄震黄河
Owner 杭州德瑞新型材料科技有限公司