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<li ><a href="/index.php?case=archive&act=list&catid=6" title="技术支持" target="" class="one">技术支持</a> </li> <li ><a href="/index.php?case=archive&act=list&catid=9" title="联系我们" target="" class="one">联系我们</a> </li> </ul> <div class="nav_btn"><span></span></div> </div> <div class="clear"></div> </div> </div> </div> </header> <div class="banner_nei"> <div class="banner_nei_center"> <div class=bg> <img src="https://www.xipaiyb.com//cn/upload/images/202107/16267491394741.jpg" /> </div> <div class=txt> <h1>行业新闻 </h1> <p></p> </div> </div> </div> <div class="box box2"> <div class="box2_t"></div> <div class="box2_b"></div> <div class="left"> <!--只展开当前栏目所在一级栏目下的分类--> <div class="left1" > <div id="catalog" > <ul class="topmenu"> <li ><a title="公司新闻" href="/index.php?case=archive&act=list&catid=22" ><span class="figure mr5"></span>公司新闻</a> <ol class="submenu"> <i></i> </ol> </li> <li class="on" ><a title="行业新闻" href="/index.php?case=archive&act=list&catid=23" class="on"><span class="figure mr5"></span>行业新闻</a> <ol class="submenu"> <i></i> </ol> </li> </ul> </div> <!--只展开当前栏目所在一级栏目下的分类--> </div> </script></div> <div class="right"> <div class="right1 news_lists"> <div id="content"> <div class="wz_title"><h3>强酸、强碱、高温、低温工况的液位、压力变送器膜片选型</h3></div> <div class="contentinfo pc_show">作者：<a>xpyb</a> 添加时间：2025-05-23 08:38:08 </div> <!-- 正文 --> <p>在压力变动器的选型中，膜片材质的选择需根据具体工况(如:介质腐蚀性、温度)进行优化。</p><p>一、强酸与强碱环境下的膜片材质选择</p><p>1、强酸环境(如:硫酸、盐酸、硝酸等)推荐材质</p><p><section><img class="rich_pages wxw-img" src="https://mmbiz.qpic.cn/sz_mmbiz_png/lO12hXEOPcUXr1mCrbxA6ImibYTmnbZaUwokVj9PfSicHLiasL7gVosnlVPxDqoluKr7Hr1kavIgatefdm0xsdjjA/640?wx_fmt=png&from=appmsg"/></section></p><p><br/></p><p>2、强碱环境(如:NaOH、KOH等)推荐材质</p><p><section><img class="rich_pages wxw-img" src="https://mmbiz.qpic.cn/sz_mmbiz_png/lO12hXEOPcUXr1mCrbxA6ImibYTmnbZaUs62KLAVW7knCFMvzhmaeHbqQqlAVufNV3ONqib6HFInPu4MNCqknHDQ/640?wx_fmt=png&from=appmsg"/></section></p><p><br/></p><p>二、高温与低温环境下的注意事项</p><p>1、高温环境(>150°C)材质推荐选择</p><p><section><img class="rich_pages wxw-img" src="https://mmbiz.qpic.cn/sz_mmbiz_png/lO12hXEOPcUXr1mCrbxA6ImibYTmnbZaUib9dngUL3HgawkXyejbVpOLYkO9miaxiaYf4LQSvGjvpoXsz8NSCZwQOw/640?wx_fmt=png&from=appmsg"/></section></p><p><br/></p><p>2、低温环境(<-50°C)材质推荐选择</p><p><section><img class="rich_pages wxw-img" src="https://mmbiz.qpic.cn/sz_mmbiz_png/lO12hXEOPcUXr1mCrbxA6ImibYTmnbZaUvVpt21GoibdD22ukicxHX8iacPRbPgSVvibw2TcPbn1g224vtl2FXrIC6w/640?wx_fmt=png&from=appmsg"/></section></p><p><br/></p><p>注意事项:</p><p>避免材料低温脆性断裂，需选择面心立方结构金属(FCC)密封材料需选用低温弹性体(如:氟胶 FKM 或全氟醚 FFKM)防止冷凝或结冰影响膜片灵敏度。<br/></p><p>三、综合选型建议</p><p><section><p style="text-align:center"><img src="/cn/upload/images/202505/17479607857312.png" title="17479607857312.png" alt="微信图片_20250523083916.png"/></p></section></p><p>1、腐蚀性介质与温度协同考虑</p><p>(1)高温强酸</p><p><section><img class="rich_pages wxw-img" src="https://mmbiz.qpic.cn/sz_mmbiz_png/lO12hXEOPcUXr1mCrbxA6ImibYTmnbZaUGEOr5qqZpfS3hcdtljPicmrlSlWb6svlZfl4aFln3MATk5DlLw0hvvw/640?wx_fmt=png&from=appmsg"/></section></p><p><br/></p><p>2、成本与可行性</p><p><section><img class="rich_pages wxw-img" src="https://mmbiz.qpic.cn/sz_mmbiz_png/lO12hXEOPcUXr1mCrbxA6ImibYTmnbZaUQ9IFtYnib99wNq775yBlIzLWECpuD40pmbJYRdXKjyiaWrI6erfY5pbA/640?wx_fmt=png&from=appmsg"/></section></p><p><br/></p><p>3、验证与测试</p><p><section><img class="rich_pages wxw-img" src="https://mmbiz.qpic.cn/sz_mmbiz_png/lO12hXEOPcUXr1mCrbxA6ImibYTmnbZaUnF2HZJIgPnuo7x5BYO09VwyGOskMuqAPKIo4qShaNdX0ib6mQDQ4p1A/640?wx_fmt=png&from=appmsg"/></section></p><p><br/></p><p><section><p style="text-align:center"><img src="/cn/upload/images/202505/17479607946065.png" title="17479607946065.png" alt="2.png"/></p></section><section><p style="text-align:center"><img src="/cn/upload/images/202505/17479607994992.png" title="17479607994992.png" alt="3.png"/></p></section><section>通过综合考虑腐蚀性介质的类型、浓度、温度范围及压力条件，结合成本与维护需求，可优化膜片选型以确保压力变动器的可靠性和寿命。(具体可以查表选择膜片材质)</section><section><p style="text-align: center;"><img src="/cn/upload/images/202505/17479607176850.jpg" title="17479607176850.jpg" alt="17370144765546.jpg"/></p><p style="text-align: center;"><img src="/cn/upload/images/202505/17479607173828.jpg" title="17479607173828.jpg"/></p><p style="text-align: center;"><img src="/cn/upload/images/202505/17479607173907.jpg" title="17479607173907.jpg"/></p><br/></section></p><p><br/></p><div class="clear"></div> <div class="blank30"></div> <div class="blank30"></div> <!-- 投票 --> <script src="/index.php?case=vote&act=view&aid=2523"></script> <div class="view_n"> 浏览： <script src="/index.php?case=archive&act=view_js&aid=2523"></script></div> <div class="blank30"></div> <!-- 上下页开始 --> <div id="page"> <strong>上一篇：</strong><a 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