作为一名塑料管材行业的忠实民工，我们除了要懂得塑料管材的分类之外，我们更需要学习塑料管材的一些专业术语，因为做管材我们是专业的。

公称直径(DN)

RESUXINGSULIAOGUANDAOXITONGGUANCAIDEBIAODINGZHIJING，BIAOSHIGUANDAONEIJING、WAIJINGDEDAXIAOHUOQIJINSIZHI。

环向弯曲刚度 / 环刚度

GUANDAODIKANGHUANXIANGBIANXINGNENGLIDELIANGDU。KECAIYONGCESHIFANGFAHUOJISUANFANGFADINGZHI，DANWEIWEIN/m2HUOKN/m2。

弹性直径变形率

GUANCAIZAIWAIYAHEZAIZUOYONGXIA，GUANJINGSHUXIANGDANXINGBIANXINGDEZHIYUJIAHEQIANGUANBIJIEMIANZHONGXINZHOUZHIJINGDEBIZHI。YONGBAIFENSHUBIAOSHI，YOUYABIANSHIYANQUEDING。 

公称压力 

ZAIGUANZI、GUANCAIDENGZAIGUIDINGWENDUXIAYUNXUCHENGSHOUDEYIYALIDENGJIBIAOSHIDEGONGZUOYALI。

标准尺寸比（SDR） 

GUANCAIDEGONGCHENGWAIJINGYUGONGCHENGBIHOUDEBIZHI。SDR=DN / en。

最Da工作压力（MOP）

GUANDAOXITONGZHONGYUNXULIANXUSHIYONGDELIUTIDEZUIDaYOUXIAOYALI，DANWEISHIMPa。

公称壁厚en 

GUANCAIBIHOUDEGUIDINGZHI，DANWEIWEImm。

总使用（设计）系数C

YIGESHUZHIDAYU1DEZONGXISHU，TAKAOLVLEWEIZAIYUCEXIAXIANZHONGTIXIANDESHIYONGTIAOJIANHEGUANDAOXITONGZHONGPEIJIANDENGZUCHENGBUFENDEXINGZHI。

YUCEJINGYEYAQIANGDUZHIXINXIAXIAN（σLPL）

ZHIXINDUWEI97.5%SHI，DUIYINGYUWENDUTHESHIJIANtDEJINGYEYAQIANGDUYUCEZHIDEXIAXIAN，σLPL=σ（T，T,0.975），DANWEIWEIMPa。

最小要求强度（MRS）

JIANG20℃、50NIANZHIXINXIAXIANσLPLDEZHIANR10HUOR20XILIEXIANGXIAYUANZHENGDAOZUIJIEJINDEYIGEYOUXIANSHUDEDAODEYINGLIZHI，DANWEIWEIMPa。DANGσLPLXIAOYU10MPa, ANR10XILIEYUANZHENG，DANGσLPLDAYUDENGYU10MPaSHIANR20XILIEYUANZHENG。

设计应力σs

ZAIZHENGCHANGCAOZUOGUOCHENGZHONG，XIANGYINGSHEJIWENDUXIA，GUANDAOKENENGCHENGSHOUDEZUIGaoGONGZUOYALI，MRSCHUYIXISHUC，YUANZHENGDAOYOUXIANSHUR20XILIEZHONGXIAYIGEJIAOXIAOZHI，JIσs=[MRS] / C。

允许偏差 / 极限偏差

YUNXUJIXIANSHUZHIYUGUIDINGSHUZHIZHIJIANDEPIANCHA。ZUIDaYUNXUZHIYUGUIDINGZHIZHICHACHENGWEISHANGPIANCHA，ZUIXIAOYUNXUZHIYUGUIDINGZHIPIANCHACHENGWEIXIAPIANCHA。

公差

GUIDINGLIANGZHIYUNXUDEPIANCHA，YONGZUIDaYUNXUZHIHEZUIXIAOYUNXUZHIZHICHABIAOSHI。DENGYUSHANG、XIAPIANCHAZHIJIANDECHAZHI。

强度实验压力 

GUANDAOQIANGDUSHIYANDEGUIDINGYALI。

平均直径

DUIYINGYUGUANBIJIEMIANZHONGXINYUANDEZHIJING。PINGJUNZHIJINGDENGYUPINGJUNWAIJINGYUPINGJUNBIHOUZHICHA，HUOPINGJUNNEIJINGYUPINGJUNBIHOUZHIHE，DANWEIWEImm。 

20℃、50年置信下限(σLCL) 

YIGEYONGYUPINGJIACAILIAOXINGNENGDEYINGLIZHI，ZHIGAICAILIAOZHIZAODEGUANCAIZAI20℃、50NIANDENEISHUIYAXIA，ZHIXINDUWEI97.5%SHI，YUCEDEZHANGQIQIANGDUDEZHIXINXIAXIAN，DANWEIWEIMPa。 

长期静液压强度（σLTHS）  

BIAOSHIZAIWENDUTHESHIJIANtYUCEDEPINGJUNQIANGDU（PINGJUNQIANGDUZHIZHIXINDUWEI50%SHICAILIAOQIANGDUDEZHIXINXIAXIAN），DANWEIWEIMPa。 

管道系统（管系）

DANDUYIZUSHEJITIAOJIANXIANGHULIANXIDEGUANDAO 。

环境应力开裂

YOUYUHUANJINGTIAOJIANDEYINGXIANGERJIASUYINGLIKAILIEDEXIANXIANG。CAILIAODENAIHUANJINGYINGLIKAILIEXINGNENGCHANGYONGESCRBIAOSHI。

交联度 

BIAOSHIJIAOLIANCHENGDUDEWULILIANG。ZAIJUHEWULIANJIANFASHENGJIAOLIANSHI，YIMEIYIJUHEWUFENZIJIAOLIANDANWEIDEPINGJUNSHUBIAOSHI。YICHENGJIAOLIANDIANMIDU、JIAOLIANZHISHU。TONGCHANGYONGNINGJIAOHANLIANGBIAOSHI。 

韧性破坏  

BANSUIMINGXIANCAILIAODEQIANGDUJIXIANBIANXINGDEPOHUAI。 

脆性破坏

POLIEQUYUMEIYOUMINGXIANSUXINGBIANXINGDEPOHUAI。 

渗透破坏

GUANNEIJIAYALIUTISHENCHUGUANBIXINGCHENGKEJIANLIUSHIDANWEIFASHENGMINGXIANKAILIEDEPOHUAIXINGSHI。

环向应力

NEIYAZAIGUANBIZHONGYINQIDEYANGUANCAIYUANZHOUFANGXIANGDEYINGLI。 

爆破压力

ZAIGUANCAIJINGYEYABAOPOSHIYANZHONGGUANCAIPOLIEQIANDEZUIDaYALI。 

故障温度  

GUANDAOXITONGCHAOCHUKONGZHIJIXIANSHICHUXIANDEZUIGaoWENDU。 

结构壁管 

YOUDUOCENGCAIZHIZUCHENGDEFUHEGUANBIJIEGOUHEGUANBIWEIKAIKOULEIXING、FENGBILEIXING（ZHONGKONG）DENGYIXINGGUANBIJIEGOUGUANCAIDETONGCHENG。

异型壁管

NEIBIPINGHUA、WAIBIWEILUOXUANZHUANG、HUANZHUANGHUOXUANZHUANGLEIGUANBIJIEGOUGUANCAIDETONGCHENG。

双壁波纹管

NEIBIGUANGHUAPINGZHENG，WAIBIWEITIXINGHUOHUXINGBOWENZHUANGLEI，NEIBIHEWAIBIBOWENJIANWEIZHONGKONGDEYIXINGGUANBIGUANCAI。

环形肋管

GUANNEIBIGUANGHUAPINGZHENG，WAIBIYOUHUANXINGJIAQIANGLEIDEYIXINGGUANBIGUANCAI。

螺旋肋管

GUANNEIBIGUANGHUAPINGZHENG，WAIBIJIAQIANGLEICHENGLUOXUANXING，YOULUOXUANJUANRAOGONGYIZHICHENGDEYIXINGGUANBIGUANCAI。 

平壁管 

GUANNEIBIWAIBIGUANGHUADEJUNZHIGUANBIGUANCAI。

机械连接管件 

TONGGUOJIXIELIANJIEFANGSHI（RULUOWENLIANJIE、KAYALIANJIEDENG）SHIXIANLIANJIEDEGUANJIAN。

弹性密封式管件

YONGDANXINGMIFENGQUANSHIXIANMIFENGLIANJIEDEGUANJIAN。TONGCHANGBUNENGCHUANDIZHOUXIANGZAIHE。

溶剂粘接式管件

TONGGUORONGJIXINGZHANJIEJILAISHIXIANLIANJIEDEGUANJIAN。

电熔管件

ZAILIANJIEBIAOMIAN（XIA）YUSHEDIANJIAREYUANJIANDEGUANJIAN。

热熔对接管件 

JUYOUYUDAILIANJIEGUANCAICHICUNXIANGTONGDEDUANKOU，TONGGUORERONGDUIJIEHANSHIXIANLIANJIEDEGUANJIAN。