清明快到了，三杯茶柔肝养肺2018年04月18日2018/4/18 0:04:16
http://www.838668.com/video/av22091998/index_470745.html
http://www.838668.com/video/av22083763/index_066229.html
http://www.838668.com/video/av22093223/index_068862.html
http://www.838668.com/video/av22091846/index_876131.html
http://www.838668.com/video/av22083608/index_653421.html
http://www.838668.com/video/av22092868/index_647622.html
http://www.838668.com/video/av22092013/index_062592.html
http://www.838668.com/video/av22091921/index_444611.html
http://www.838668.com/video/av22093242/index_485748.html
http://www.838668.com/video/av22091798/index_988852.html
http://www.838668.com/video/av22084241/index_155944.html
http://www.838668.com/video/av22085188/index_428046.html
http://www.838668.com/video/av22091960/index_754556.html
http://www.838668.com/video/av22084138/index_687209.html
http://www.838668.com/video/av22091783/index_871721.html
http://www.838668.com/video/av22091826/index_406169.html
http://www.838668.com/video/av22092272/index_448906.html
http://www.838668.com/video/av22085226/index_899119.html
http://www.838668.com/video/av22091952/index_253129.html
http://www.838668.com/video/av22092194/index_988659.html
http://www.838668.com/video/av22083985/index_186803.html
http://www.838668.com/video/av22085635/index_378993.html
http://www.838668.com/video/av22085487/index_961950.html
http://www.838668.com/video/av22085394/index_733455.html
http://www.838668.com/video/av22092143/index_229199.html
http://www.838668.com/video/av22085769/index_008854.html
http://www.838668.com/video/av22092063/index_024797.html
http://www.838668.com/video/av22093263/index_720126.html
http://www.838668.com/video/av22093218/index_032537.html
http://www.838668.com/video/av22091804/index_402667.html
http://www.838668.com/video/av22091998/index_823821.html
http://www.838668.com/video/av22085864/index_385579.html
http://www.838668.com/video/av22083628/index_630388.html
http://www.838668.com/video/av22091804/index_360888.html
http://www.838668.com/video/av22092898/index_387189.html
http://www.838668.com/video/av22085249/index_130430.html
http://www.838668.com/video/av22091815/index_401589.html
http://www.838668.com/video/av22084197/index_119558.html
http://www.838668.com/video/av22083558/index_582540.html
http://www.838668.com/video/av22092112/index_468464.html
http://www.838668.com/video/av22085353/index_190943.html
http://www.838668.com/video/av22091859/index_614730.html
http://www.838668.com/video/av22083578/index_842102.html
http://www.838668.com/video/av22091804/index_510302.html
http://www.838668.com/video/av22085588/index_356194.html
http://www.838668.com/video/av22083951/index_594700.html
http://www.838668.com/video/av22084081/index_375884.html
http://www.838668.com/video/av22092117/index_127445.html
http://www.838668.com/video/av22084014/index_581150.html
http://www.838668.com/video/av22085575/index_243446.html
http://www.838668.com/video/av22083658/index_272820.html
http://www.838668.com/video/av22085489/index_776277.html
http://www.838668.com/video/av22085682/index_313248.html
http://www.838668.com/video/av22092250/index_331044.html
http://www.838668.com/video/av22091804/index_454246.html
http://www.838668.com/video/av22085820/index_958524.html
http://www.838668.com/video/av22085244/index_159598.html
http://www.838668.com/video/av22085780/index_098966.html
http://www.838668.com/video/av22083709/index_553786.html
http://www.838668.com/video/av22083551/index_480358.html
http://www.838668.com/video/av22092067/index_935704.html
http://www.838668.com/video/av22093242/index_867863.html
http://www.838668.com/video/av22092989/index_955253.html
http://www.838668.com/video/av22085188/index_957767.html
http://www.838668.com/video/av22083725/index_342598.html
http://www.838668.com/video/av22084081/index_045587.html
http://www.838668.com/video/av22085472/index_520965.html
http://www.838668.com/video/av22085800/index_290477.html
http://www.838668.com/video/av22091761/index_705521.html
http://www.838668.com/video/av22084090/index_794915.html
http://www.838668.com/video/av22083791/index_587968.html
http://www.838668.com/video/av22092858/index_106520.html
http://www.838668.com/video/av22092898/index_067535.html
http://www.838668.com/video/av22083580/index_917994.html
http://www.838668.com/video/av22083525/index_282937.html
http://www.838668.com/video/av22092858/index_328669.html
http://www.838668.com/video/av22091824/index_892544.html
http://www.838668.com/video/av22092206/index_709481.html
http://www.838668.com/video/av22085378/index_435238.html
http://www.838668.com/video/av22093238/index_723154.html

1.什么是铝合金切削液


        在和大家解释什么是[url=http://www.cy-industry.com/webone/products.asp?lx=big&anid=90http://][b]铝合金切削液[/b][/url]之前小编先来和大家说说什么是切削液。切削液主要应用在金属制品中，在对金属进行切、削和打磨过程中用来对金属进行冷却和其润滑作用的一种液体。而铝合金切削液就是专为铝合金这种材料而研制的能够起到润滑、防锈的一种切削液。


        2.铝合金切削液的配方


        (1)油或油基液体：属于ASTM D 2881分类中的Ⅰ-A、Ⅰ-B、Ⅰ-C，习惯称为切削油(也称净切削油)，主体为矿物油，含或不含添加剂。     


        (2)[url=https://shop1387904230829.1688.com/?spm=0.0.0.0.aC1fBG]乳液[/url]：属于ASTM D 2881分类中的Ⅱ-A、Ⅱ-B、Ⅱ-C，有时称为溶解油。     


        根据矿物油含量和油滴粒度可分为3种：


        粗乳液：含油65%~80%,油滴粒度2~10 μm；     


        微乳液：含油40%~50%，油滴粒度＜1 μm；


        半合成乳液：含油5%~40%，油滴粒度约0.1 μm；     


        (3)合成液体：含油或不含油，以溶于水的高分子有机物为主要润滑剂。     


        (4)化学溶液：不含油，属ASTM D 2881分类中的Ⅲ。