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 Wysłany: Pon 2:40, 14 Lut 2011 Temat postu: nike air max On some problems in the hydraulic flu |
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On some problems in the hydraulic fluid
Leaving a large oil heat loss. I reasonable measures designed pipe, tube length as short as possible to reduce the bending and cross-section changes. (2) pipe is not clean and maintain long-term, the hole wall attached to the dirt, increasing the flow of oil pressure loss. Measures: on the line to regular maintenance,[link widoczny dla zalogowanych], cleaning. (3) misuse of the high viscosity of hydraulic oil measures: a reasonable choice of hydraulic oil, choose the appropriate viscosity of hydraulic oil, hydraulic equipment for the different precision, but also pay attention to the quality of hydraulic oil and viscosity-temperature characteristics of a good choice as far as possible hydraulic oil. (4) pipe diameter is too small, causing high oil flow rate, pressure loss increases,[link widoczny dla zalogowanych], the oil temperature rise. Measures - the hydraulic system of the pipeline,[link widoczny dla zalogowanych], the flow rate should allow the rational design of the pipe diameter. Diameter but not too much, otherwise it will waste materials, resulting structure is not compact and so on. 3.2.2 cause excessive loss of fluid volume causes of fever: hydraulic pump,[link widoczny dla zalogowanych], the connections, with the gap at the other too much to make oil heat leakage. (Continued on page l7) Section 19 of Handan Agricultural College 17TheTheinkingAboutOrgmcChemistryTeachingQiShuangchun (ChenistryDepartment, HengshuiNormalCollege,[link widoczny dla zalogowanych], Hengshui, Hebei, 053000) Abstract: Teachersshouldhavenewwayofthinkingingivingtheirlectures. Theyshouldgraspthemainpointsandusetheheuristicmethodandexpressthemeaningclearlywiththeleastwords. Atthesallletime, teachersshouldpreparetheirlessonscarefullyandhaveafullycommandofthecotentsoftheirteachingmaterials. Theyshouldputemphasisonteachingmethod, andimprovetheteachingquality. KeyWords: OrgnicChemistry; Classroominstrucitondesign; heuristicteaching (on the next page 14) to exclude: decrease volume loss, to prevent the leakage is too large.
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