?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 汽R机a知识 - 无锡戴福斯润滑a销售有限公?/title> <meta name="Keywords" content=""/> <link rel="stylesheet" type="text/css" href="/template/NEST60029/lib/css.css"/> <link rel="stylesheet" type="text/css" href="/template/NEST60029/lib/css_com.css"/> <script type="text/javascript" src="/template/NEST60029/lib/jquery-1.7.2.min.js"></script> <script type="text/javascript" src="/template/NEST60029/lib/jquery.js"></script> <script type="text/javascript" src="/template/NEST60029/lib/foucsbox.js"></script> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> </head> <body> <div style="position:fixed;left:-9000px;top:-9000px;"><sup id="jha7w"></sup><tt id="jha7w"><s id="jha7w"><option id="jha7w"><td id="jha7w"></td></option></s></tt><wbr id="jha7w"><font id="jha7w"><tt id="jha7w"><li id="jha7w"></li></tt></font></wbr><tbody 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"font-size:17px;text-align:justify;background-color:#FFFFFF;"> <span style="font-family:SimSun;font-size:14px;color:#666666;">机a一直是很多汽R用户熟知的一个词汇,那到底机Ҏq什么用的呢Q那些标号代表什么意思?什么R适合用什么机Ҏ合适?今天编为您q行详细的讲解:(本文仅以汽a发动机用的机油作Z要讨论目?</span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;"><strong>?机a的作用:</strong></span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">发动机是汽R的心脏,发动机内有许多相互摩擦运动的金属表面Q这些部件运动速度快、环境差Q工作温度可?00C?00C。在q样恶劣的工况下面,只有合格的润滑a才可降低发动机零件的损Qg长用寿命,那么合格的润滑a要满_些要求呢Q也是说润滑a的六大作用是什么?</span> </p> <p style="color:#333333;font-family:-apple-system-font, BlinkMacSystemFont, "font-size:17px;text-align:justify;background-color:#FFFFFF;"> <span style="font-family:SimSun;font-size:14px;color:#666666;"><strong>1、润滑减:</strong></span><span style="font-family:SimSun;font-size:14px;color:#666666;">zd和汽~怹_主u和u瓦之间均存在着快速的相对滑动Q要防止零gq快的磨损,则需要在两个滑动表面间徏立a膜。有_厚度的a膜将相对滑动的零件表面隔开Q从而达到减磨损的目的?/span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;"><strong>2、冷却降温:</strong></span><span style="color:#666666;font-family:SimSun;">机a能够热量带回机油箱再散发至I气中帮助水冷却发动机?/span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#974806;"><span style="color:#666666;font-family:SimSun;"> </span><strong><span style="color:#666666;font-family:SimSun;">3、清z清z:</span></strong></span><span style="color:#666666;font-family:SimSun;">好的机a能够发动机零g上的_物、a泥、磨损金属颗_通@环带回机油箱Q通过润滑油的动Q冲z了零g工作面上产生的脏物?/span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;"><strong>4、密防漏:</strong></span><span style="color:#666666;font-family:SimSun;">机a可以在活塞环与活塞之间Ş成一个密圈Q减气体的泄漏和防止外界的污染物进入?/span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;"><strong>5、防锈防蚀Q?/strong></span><span style="color:#666666;font-family:SimSun;">润滑油能吸咐在零件表面防止水、空气、酸性物质及有害气体与零件的接触?/span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;"><strong>6、减震缓Ԍ</strong></span><span style="color:#666666;font-family:SimSun;">当发动机气口压力急剧上升Q突然加剧活塞、活塞屑、连杆和曲u轴承上的负荷很大Q这个负Lqu承的传递润滑,使承受的冲击负荷起到~冲的作用?/span> </p> <p style="color:#333333;font-family:-apple-system-font, BlinkMacSystemFont, "font-size:17px;text-align:justify;background-color:#FFFFFF;"> <strong><span style="color:#666666;font-family:SimSun;">?机a的分c:</span></strong> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">目前市场上的机a因其基础油之不同可简分ؓ矿物油及合成油两U?植物油因产量E故不计)。合成a中又分ؓQ全和成及半合成。全合成机a是最高等U的?/span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#974806;"><span style="color:#666666;font-family:SimSun;"> </span><span style="color:#666666;font-family:SimSun;"><strong>二者差别在于:</strong></span><span style="color:#666666;font-family:SimSun;">合成油用的温度更广Q用期限更长,以及成本更高;同样的a膜要求,合成油可用较低的黏度可达成Q而矿物a需用相对于合成油较的黏度才可辑ֈ如此要求?/span></span><span style="color:#666666;font-family:SimSun;">在相同的工作环境里,合成油因Z用期限比矿物沚w很多Q因此成本较高,但是比较换aơ数之后Qƈ不比矿物沚w多少?/span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;"><strong>?机a的标?/strong></span><strong><span style="color:#666666;font-family:SimSun;">Q?/span></strong> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">润滑油的黏度多用SAE{别标识,SAE是英文“美国汽车工E师协会”的~写。例如:SAE15W-40、SAE5W-40Q“W”表C?winter(冬季)Q?/span><span style="color:#666666;font-family:SimSun;">其前面的数字小说明机a的低温流动性越好,代表可供使用的环境温度越低,在冷启动时对发动机的保护能力好Q“W”后?一横后?的数字则是机油耐高温性的指标Q数D大说明机油在高温下的保护性能好?/span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <strong><span style="color:#666666;font-family:SimSun;">QSAEQ?适用的环境温度(CQ?/span></strong> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <br /> </p> <p style="color:#333333;font-family:-apple-system-font, BlinkMacSystemFont, "font-size:17px;text-align:justify;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">5w耐外部低?30C</span> </p> <p style="color:#333333;font-family:-apple-system-font, BlinkMacSystemFont, "font-size:17px;text-align:justify;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">10w耐外部低?25C</span> </p> <p style="color:#333333;font-family:-apple-system-font, BlinkMacSystemFont, "font-size:17px;text-align:justify;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">15w耐外部低?20C</span> </p> <p style="color:#333333;font-family:-apple-system-font, BlinkMacSystemFont, "font-size:17px;text-align:justify;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">20w耐外部低?15C</span> </p> <p style="color:#333333;font-family:-apple-system-font, BlinkMacSystemFont, "font-size:17px;text-align:justify;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">30耐外部高?0C</span> </p> <p style="color:#333333;font-family:-apple-system-font, BlinkMacSystemFont, "font-size:17px;text-align:justify;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">40耐外部高?0C</span> </p> <p style="color:#333333;font-family:-apple-system-font, BlinkMacSystemFont, "font-size:17px;text-align:justify;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">50耐外部高?0C</span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">q样看来Q?W-40机a的适用外部温度范围?30C?0C;?0W-30机a适用外部温度范围?25C?0C?/span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <strong><span style="color:#666666;font-family:SimSun;">?机a的分U:</span></strong> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">"S" 开头系列代表汽油发动机用aQ规格有Q?/span><span style="color:#666666;font-family:SimSun;">SA,SB,SC,SD,SE,SF,SG,SH,SJ,SL,SM?/span><span style="color:#666666;font-family:SimSun;">"C"开头系列代表柴油发动机用aQ规格有Q?/span><span style="color:#666666;font-family:SimSun;">CA, CB, CC, CD, CE, CF, CF-2, CF-4,CG-4, CH-4, CI-4?/span><span style="color:#666666;font-family:SimSun;">?S"?C"两个字母同时存在Q则表示此机油ؓ?柴通用型?/span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">从“SA”一直到“SL”,每递增一个字母,机a的性能都会优于前一U,机a中会有更多用来保护发动机的添加剂。字母越靠后Q质量等U越高,</span><span style="color:#666666;font-family:SimSun;">国际品牌中机油别多是SFU别以上的?/span><strong></strong> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">前面看完了机油的基本知识Q大家肯定有很多疑问Q我们下面开始答疑解惑:</span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <strong><span style="color:#666666;font-family:SimSun;">★问?Q是不是什么R都适用的全合成机a?</span></strong> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">刚才说了那么多,全合成机油的性能非常好,动性上佻I不管是冬日冷启动q是夏天的耐闹高温性都非常Qƈ且换油周期长Q可以对发动机程度保护?/span><span style="color:#666666;font-family:SimSun;">但是全合成机油ƈ不适合几万元的微型、小型R......</span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">几万的经型车,因ؓ发动机加工精度相Ҏ较低Q汽~和zd环之间的间隙密封性ƈ不是最_的,q种发动机经常出现在车h成本较低的R型上Q要比较_稠的机Ҏ起到汽和活塞环之间的密作用?/span> </p> <p style="color:#333333;font-family:-apple-system-font, BlinkMacSystemFont, "font-size:17px;text-align:justify;background-color:#FFFFFF;"> <span style="font-family:SimSun;font-size:14px;color:#666666;">如果使用了比较稀的全合成机aQ这U发动机的密就会存在些许小问题Q开h总觉得没有力量。ƈ且停车之后,全合成会大部分流回到油底壻I发动机的润滑和密受C破坏Q所以清晨v床启动后Q发动机会受到较大磨损。如果是较ؓ_稠的中档次机a在这U发动机内就不会出现q种问题?/span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">所以,全合成机Ҏ好aQ但是ƈ不适合低成本的l济性R发动机?/span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <strong><span style="color:#666666;font-family:SimSun;">★问?Q增压发动机如何选机?-如果L脑了使用全合成机?/span></strong> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">如果普通涡轮增压RQ那使用原厂机a矣Q但是如果你L脑了Q请把下面这D늜完:</span> </p> <p style="color:#333333;text-align:justify;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;">涡轮增压器因为工作{速太高,M滚珠轴承也承受不了每分钟10万{的强度,所以主转u不是滚珠轴承和涡轮本体连接的Q而是采用动式设计,</span><span style="color:#666666;font-family:SimSun;">主{轴是动在机油中的,涡轮本体和主转u之间的极为狭H空间内充满动的机油,既v到润滑的作用、又能在主{轴和涡轮本地之间带走杂质qv到散热作用?/span> </p> <p style="text-align:center;color:#333333;font-size:14px;font-family:Tahoma, Arial, 宋体;background-color:#FFFFFF;"> <span style="color:#666666;font-family:SimSun;"><img src="/uploads/image/20180604/20180604144438_3476.jpg" alt="" /><br /> </span> </p></p> <div class="pagess"><div>上一?<a href="4.html">润滑油的废a处理原则</a></div> <div>下一?<a href="2.html">润滑油的颜色与润滑a的品质有关么Q?/a></div> </div> <div class="info_key"> <span>相关标签Q?/span> </div> </div> <div class="clear"></div> </div> <div class="zklist"> <div class="zklist-T"> 相关新闻</div> <div class="zklist-C"> <ul> <li> <a href="/news/61.html" title="车用润滑沚w用的因?" rel="nofollow">车用润滑沚w用的因?</a> <span>2019-04-26</span> </li> <li> <a href="/news/60.html" title="润滑油加盟的生意好不好做?" rel="nofollow">润滑油加盟的生意好不好做?</a> 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