随着汽车工业对复杂曲折的管道制造的需求，推动了离轴挤出吹塑技术的发展。 该技术被称为3D吹塑或三维吹塑（在一些国家也称为多维挤出吹塑MES）。 因为废料边缘是在减少的过程中产生的，所以它也被称为较少的废物或没有废边吹塑。

       三维（3D）挤吹中空塑料的比较常用的一种成型方法是，塑料型坯被挤出后，被预吹涨并贴紧在一边模具壁上，挤出头或模具按成型编制的程序进行第二轴或第三轴的转动，当类似肠形的型坯充满膜腔时，另一边模具闭合并抱紧型坯，使之与后续的型坯分离，这是整个型坯被吹胀并贴紧在膜腔的壁上成型。用这种方式生产类似汽车上的空气导管或输油管，不但飞边少，而且制品上无合模线并且可顺序挤出，使很多复杂形状的制件很容易地用三维吹塑成型法来加工成型。

      DIERZHONGCHENGXINGFANGFAZHUYAOSHICAIYONGLEKEYISHUNXUKAIHEMO，FUYACHENGXINGGONGYI。TASHIJIANGMOJUDESHANGXIADUANZUOCHENGKEYIDANDUKAIHEMODEHUADONGKUAI，SHENGCHANSHIXIANHEMO，GUANZHUANGXINGPISHOUDAOFUYAKONGQIDEXIYINZAIMOJUNEIBUYANZHENEIQIANGDEQUXIANYIDONG，XINGPIDAOWEIHOU，MOJUSHANGXIADEHUAKUAIBIHEBINGQIECHUISUCHENGXING；ZHEIZHONGCHENGXINGFANGFABIJIAOSHIHEGUANDAOWAIXINGBIJIAOGUIZEZHIPINCHENGXING。

       DISANZHONGCHENGXINGFANGFAZHUYAOSHICAIYONGJIQIRENHUOZHEJIXIESHOUJIACHISULIAOXINGPIBINGQIEFUZAIMOJUZHONG，CHUIQISHIZHICHENGXING，YEKEYISHIXIANSANWEICHUISUCHENGXING。

NUOYONGCHANGGUIDECHUISUSHENGCHANGONGYISHENGCHANWANQULEIGUANJIAN，YOUYUXINGPIDEPINGZHEKUANDUYUANYUANDAYUZHIPINDETOUYINGKUANDU，YINCIHUICHANSHENGDALIANGDEFEIBIAN（YOUXIEGAODU50%YISHANG），QIEJIAPIFENGJIAOZHANG，BUJINYINGXIANGWAIGUAN，ERQIEYINGXIANGZHIPINDEQIANGDU。

       由于三维吹塑的特殊工艺性，与常规有废边的吹塑工艺相比，其具有以下优点。

1.YOUHEMOLIDEXUANZEGONGSHI，HEMOLIPHEMO=1.2P，P=qs,ZEKEYIZHIDAOSANWEICHUISUDETOUYINGMIANJIYUANXIAOYUCHANGGUICHUISUDEPINGZHEKUANDU，QIZHONGPWEIZHANGMOLI，qWEICHUIQIYALI，sWEIHEMOMIANSHANGTOUYINGMIANJI，GUHEMOLIYUANXIAOYUCHANGGUICHUISUGONGYISUOXUDEHEMOLI。

2.QIECHUBIANLIAODEGONGZUOLIANGDADAJIANSHAO。

3.BUBIDUICHENGXINGWUPINDEWAIJINGZHONGXINXIUZHENG。

4.CHENGXINGWUPINDEPINZHIYOUSUOTIGAO，YINWEIBIHOUFENPEISHEJI，BUJIAOSHAOHEMOQIANGDU。

5.YOUYUBIANJIAOLIAODEJIANSHAO，JICHUSHIJIANJIAOSHAO，SHIREMINXINGCAILIAODEJIANGJIEGAILVJIANSHAO。

6.YOUYUFEIBIANDALIANGJIANSHAO，KEYICAIYONGGENGXIAODEJICHUJISHENGCHAN。

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