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$(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p style="text-align:center"></p><p> 为空载开�?*时真石漆搅拌机设备调速阀的特性，此时调速阀两端压差即为泵的供油压力。Ap，为调速阀�?小压差，当压差超过Ap后，真石漆设备通过阀的流量就不再随压差的改变而变化。如果液压缸上有载荷以及回油路上有背压阀等，其形成的压力差总则调速回路中泵的供油压力必须超过才能在调速阀两端形成压差。考虑到这点，真石漆搅拌机设备词速阀的特性曲线，应向右移动Ap限压式变量泵的特性。曲�?�?的交点既是回路的工作点。调节调速阀的开口（曲线1向下移位而转折点橫坐标不变），而通过流量仍由调速阀决定。真石漆设备载荷的变化只使调速阀两端压差变化，即沿着横坐标左右平移，但与曲线2的交点仍保持不变，即进入液压缸的流量不变。应该注意，在限压式变量泵的特性曲线时，务必要使斜线部分与曲线1的水平交，否则就不能在载荷变化时保证速度稳定。回路工作时，泵的流量自动节阀的开口相适应，真石漆设备也就是说回路是没有流量损失的、�br/></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; font-size: 14px; margin: 10px 0 0; line-height: 26px;"> 我厂可根据客户的需求来提供不同的配置方案及设计方案 </p> </div>  <div class="xgfa"> <div class="xgfa_tit"> <div> <span></span>相关方案 </div> </div> <div class="xgfa_box" style="display: block;"><div style="padding:10px;">暂无相关方案、�/div> </div> </div> <script> $(function(){ // 切换 $(".xgfa_tit_ul li").hover(function(){ $(".xgfa_tit_ul li").css({"color":"#4F5862","border-bottom-color":"transparent"}); 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