datalist:8数据库“tempdb”的事务日志已满，原因为“ACTIVE_TRANSACTION”。   在 System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   在 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   在 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   在 System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   在 System.Data.SqlClient.SqlDataReader.get_MetaData()
   在 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader()
   在 B2b.Shop.ShopBase.GetDataList(Int32 iValue, Int32 iSize, List`1& loValues) 位置 f:\mywork\b2b168\b2bweb\B2bBase\ShopBase.cs:行号 4543datalist:2数据库“tempdb”的事务日志已满，原因为“ACTIVE_TRANSACTION”。   在 System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   在 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   在 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   在 System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   在 System.Data.SqlClient.SqlDataReader.get_MetaData()
   在 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader()
   在 B2b.Shop.ShopBase.GetDataList(Int32 iValue, Int32 iSize, List`1& loValues) 位置 f:\mywork\b2b168\b2bweb\B2bBase\ShopBase.cs:行号 4543datalist:2数据库“tempdb”的事务日志已满，原因为“ACTIVE_TRANSACTION”。   在 System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   在 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   在 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   在 System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   在 System.Data.SqlClient.SqlDataReader.get_MetaData()
   在 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader()
   在 B2b.Shop.ShopBase.GetDataList(Int32 iValue, Int32 iSize, List`1& loValues) 位置 f:\mywork\b2b168\b2bweb\B2bBase\ShopBase.cs:行号 4543datalist:5数据库“tempdb”的事务日志已满，原因为“ACTIVE_TRANSACTION”。   在 System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   在 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   在 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   在 System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   在 System.Data.SqlClient.SqlDataReader.get_MetaData()
   在 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader()
   在 B2b.Shop.ShopBase.GetDataList(Int32 iValue, Int32 iSize, List`1& loValues) 位置 f:\mywork\b2b168\b2bweb\B2bBase\ShopBase.cs:行号 4543<!DOCTYPE html>
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<ul class="jieshao animated zoomIn"><h1>4WE10JA31/CW220Z5L 换向阀</h1>
<li class="price_con  animated zoomIn">    价格：￥<i>98.00</i> 元/个 起</li>

<li class="two animated zoomIn"><font>产品数量：</font><span>9999.00个</span></li>
<li class="two animated zoomIn"><font>发货地址：</font><span>江苏省无锡锡山区   &nbsp;</span></li>
<li class="two animated zoomIn linex"><font>关键词：</font><span>4WE10JA31/CW220Z5L</span></li>
<li class="two animated zoomIn"><font>发布日期：</font><span>2024-06-22</span></li>
<li class="two animated zoomIn linex"><font>阅 读 量：</font><span>49</span></li>
<li class="san animated zoomIn"><font>销售电话：</font><a class="xsdh">13382243221</a></li>
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<div class="shuxing2020">
<span class="ssx01">工作压力</span><span class="ssx02">31.5Mpa</span>
<span class="ssx01">介质</span><span class="ssx02">液压油</span>
<span class="ssx01">工作电压</span><span class="ssx02">DC24/AC220V</span>
<span class="ssx01">安装方式</span><span class="ssx02">板式</span>
<span class="ssx01">工作温度</span><span class="ssx02">85</span>
<span class="ssx01">类型</span><span class="ssx02">电磁阀、方向控制阀</span>
<span class="ssx01">连接方式</span><span class="ssx02">湿式、板式连接</span>
<span class="ssx01">用途</span><span class="ssx02">用于控制液体的通断和流动方向</span>
<span class="ssx01">复位形式</span><span class="ssx02">弹簧式</span>
<span class="ssx01">阀体</span><span class="ssx02">铸造流道</span>
<span class="ssx01">公称通径</span><span class="ssx02">NG6、NG10</span>
<span class="ssx01">公称压力</span><span class="ssx02">31.5MPa</span>
<span class="ssx01">额定流量</span><span class="ssx02">20～80L/min</span>
<span class="ssx01">额定换向频率</span><span class="ssx02">60次/min</span>
<span class="ssx01">油液温度范围</span><span class="ssx02">-30～+80℃</span>
<span class="ssx01">介质粘度</span><span class="ssx02">10—350cst</span>
<span class="ssx01">介质精度</span><span class="ssx02">＜25</span>
<span class="ssx01">额定电流</span><span class="ssx02">＜1.2A</span>
</div>
换向阀分类<br/>（1）机动换向阀，机动换向阀又称行程阀。<br/>（2）电磁换向阀，电磁换向阀是利用电磁吸引力操纵阀芯换位的方向控制阀。<br/>（3）电液换向阀，电液换向阀是由电磁换向阀和液动换向阀组成的复合阀。<br/>（4）手动换向阀，手动换向阀是用手推杠杆操纵阀芯换位的方向控制阀。<br/>换向阀分类<br/>（1）机动换向阀，机动换向阀又称行程阀。<br/>（2）电磁换向阀，电磁换向阀是利用电磁吸引力操纵阀芯换位的方向控制阀。<br/>（3）电液换向阀，电液换向阀是由电磁换向阀和液动换向阀组成的复合阀。<br/>（4）手动换向阀，手动换向阀是用手推杠杆操纵阀芯换位的方向控制阀。<br/><img style="margin: auto;clear: both;display: block" src="//l.b2b168.com/2021/01/26/15/202101261507580993354.jpg" alt="4WE10JA31/CW220Z5L"/><br/>滑阀的液压卡紧现象<br/>滑阀的液压卡紧现象不仅在换向阀中有，其他的液压阀也普遍存在，在高压系统中更为**，特别是滑阀的停留时间越长，液压卡紧力越大，以致造成移动滑阀的推力（如电磁铁推力）不能克服卡紧阻力，使滑阀不能复位。<br/>引起液压卡紧的原因，有的是由于脏物进入缝隙而使阀芯移动困难，有的是由于缝隙过小在油温升高时阀芯膨胀而卡死，但是主要原因是来自滑阀副几何形状误差和同心度变化所引起的径向不平衡液压力。为了减小径向不平衡力，应严格控制阀芯和阀孔的制造精度，在装配时，尽可能使其成为顺锥形式，另一方面在阀芯上开环形均压槽，也可以大大减小径向不平衡力。<br/><img style="margin: auto;clear: both;display: block" src="//l.b2b168.com/2021/01/26/15/202101261509010412454.jpg" alt="4WE10JA31/CW220Z5L"/><br/>优点<br/>动作准确、自动化程度高、工作稳定可靠，但需附设驱动和冷却系统，结构较为复杂；阀瓣式结构则较简单，多用于流量较小的生产工艺上。<br/>在石油、化工、矿山和冶金等行业中，六通换向阀是一种重要的流体换向设备。该阀安装在稀油润滑系统输送润滑油的管道中。通过变换密封组件在阀体中的相对位置，使阀体各通道连通或断开，从而控制流体的换向和启停。<br/><img style="margin: auto;clear: both;display: block" src="//l.b2b168.com/2021/01/26/15/20210126150816961524.jpg" alt="4WE10JA31/CW220Z5L"/><br/>以电磁阀的项目为多，它主要包括下面几项：<br/>1.工作可靠性<br/>指电磁铁通电后能否可靠地换向，而断电后能否可靠地复位。电磁阀也只有在一定的流量和压力范围内才能正常工作。这个工作范围的极限称为换向界限。<br/>2.压力损失<br/>由于电磁阀的开口很小，故液流流过阀口时产生较大的压力损失。<br/>3.内泄漏量<br/>在各个不同的工作位置，在规定的工作压力下，从高压腔漏到低压腔的泄漏量为内泄漏量。过大的内泄漏量不仅会降低系统的效率，引起过热，而且还会影响执行机构的正常工作。<br/>4.换向和复位时间<br/>交流电磁阀的换向时间一般为0.03～0.05s，换向冲击较大;而直流电磁阀的换向时间为0.1～0.3s，换向冲击较小。通常复位时间比换向时间稍长。<br/>5.换向频率<br/>换向频率是在单位时间内阀所允许的换向次数。目前单电磁铁的电磁阀的换向频率一般为60次/min。<br/>6.使用寿命<br/>电磁阀的使用寿命主要取决于电磁铁。湿式电磁铁的寿命比干式的长，直流电磁铁的寿命比交流的长。<br/>无锡弘德昇液压机械有限公司是一家集研发、生产、销售和技术服务为一体的高新企业。公司拥有科学、完整的质量管理体系，高精度的生产设备和认真负责的员工。主要生产销售，液压站及其附件、液压阀、液压泵、冷却器、过滤器及气动元器件。适用于锻压、剪折机床，金属回收、工程、建筑、矿山机械，冶金设备及船舶、水利、机械等领域。公司秉承“诚实守信，品质为先”的文化理念。高质价比的产品、丰富的实践经验和完整的系统解决方案、服务于客户需求。欢迎各界朋友莅临参观、和业务洽谈。<br /><a href="http://hondsun.b2b168.com/">http://hondsun.b2b168.com</a>

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