如何判断球管故障？

admin · 发表于 2020-10-19 23:01:41

<img class="__bg_gif" data-ratio="0.10555555555555556" src="http://mmbiz.qpic.cn/mmbiz/M2H0aGBjWUTRia7nqkArYeKZUqEfdmpNibMPiaZk4gvlWk5v5lUKyXhjJP4CENKQeQt5HI8zwcTCWJOkicfWJiatdJQ/0?wx_fmt=gif" data-type="gif" data-w="720" width="auto" style="font-size: 16px;white-space: normal;line-height: 25.6px;font-family: Arial, Verdana, Helvetica, sans-serif, 宋体;color: rgb(63, 63, 63);text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;visibility: visible !important;width: auto !important;" /> <p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">现场判断球管好坏，请按负载调试连接好球管组件。按下续6点检查球管是否正常：<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">1.移除球管铅窗，检查开机后大小灯丝点亮及切换情况。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">2.观察铅窗内玻璃有无变色，玻壳有无裂纹，氧化物沉着，灯丝发光颜色是否正常。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">3.观察旋转阳极钯面有无坑洞、龟裂、熔蚀，旋阳电机驱动线有无拧紧。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">4.按下手匣一档，察看旋转阳极钯盘转动是否启动，是否有晃动，停转时间是否超过2分钟，转动有无异响。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">5.球管朝上静置，玻璃内是否有气泡，是否存在漏油现象。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">6.曝光监测KV，MA是否与控制台一致，波形有无异常。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">首先：明确球管为易损件，培训医生时强调，曝光间隔时间与球管热容量有限。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">现场我们在曝光不出射线和曝光不中止(E08)时，一般都将球管放在最后端，实际不一定在曝光不出射线和E08、E03、E04、E05报错时才有怀疑检查球管的必要，即能出射线不代表球管没有问题。通过先期去除铅窗观察球管外观，如有先发现一些异常征象，如更换球管前先看玻璃窗朝上是否有气泡，灯丝点亮切换不正常，球管旋阳靶盘静止时可看到有坑、管芯有裂纹，内发黑蒸发镜面，均即可判断球管有问题，而不必空等示波表来排除高压发生系统的问题。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">X射线管完全失效，不出射线的情况：击穿与漏气。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">首先安装球管时，必须保证旋转阳极线螺丝拧紧，接触良好，避免旋阳不启动情况下曝光对球管旋阳靶面的破坏。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">目前高压只检测球管旋阳线圈的电压和电流。灯丝-MA，只限高，不限低。注意当曝光不中止的情况下，尽量在MS模式下曝光，以免损伤球管灯丝。另外发生e04E05后需常规检查球管的旋阳靶面损坏情况。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">球管的常见故障及表现：<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">一、阳极靶面损坏<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">表现：去除铅碗，打开高压，不要按手匣，使旋阳处于静止状态，通过点亮的灯丝光观察阳极靶面，有坑污不平，斑痕，龟裂可判断异常。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">继发现象：<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"> 因焦点面出现不平或玻璃壁上附着大量焦点融化后飞溅的金属粉末，使X射线散射和X射线被吸收，影像清晰度降低。此时去除铅窗观察灯丝加热时，其灯丝的亮度较往常变暗，呈“茶色”由于阳极金属的蒸发，玻璃壁上可见到被镀上了一种薄薄灰白暗亮的金属层，严重者呈热水瓶样，同时可见靶面有龟裂、裂纹及熔蚀等现象。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">靶面损坏原因分析：<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">1.卡轴，主要通过观察，手一后，旋阳转动会很快变慢。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">此处需澄清一点，品质在检测新球管的时时候用了停转时间3分钟来判断旋阳的转动性能是否良好。停转时间长说明球管旋阳转起来的速度很快，同时转动阻力不高，实际球管使用一段时间过后，性能会下降，不能再用3分钟来判断。一般判断是否否卡轴，主要看旋紧阳转动后是否有很快变慢的情况。打开铅窗，钯面启动后旋转看上去跟静止一样(很平稳)，停转时间在1分钟以上，说明转速应该没什么问题。同时注意听声音，一般只要不是明显的异响，新装机1个月内不超过60分贝，声音大点没什么坏处。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">2.过负荷使用。有两种可能：一种是过载保护电路失灵使一次曝光过载;另一种是多次曝光，造成累积性过载而熔化蒸发。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">3.或旋转阳极板或控制电路出现故障，常见的E04/E05情况。在阳极不转动或转速过低的情况下曝光，导致阳极靶面瞬间熔化蒸发，镀钨层损坏。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">4.电路正常，但转速明显下降，静转时间短，曝光时阳极不转动等。这种情一口气下曝光时，管电流剧增，阳极靶面某点被熔化,在灯丝点亮时可看到靶面有斑痕，龟裂。另外X射线管阳极靶转动时严重抖动、晃动，也会产生射线剂量不够的情况。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">判断：主要通过目测阳极靶面和听阳极启动声音来判断。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">二、灯丝烧毁<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">表现：<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">无X射线，高压报错E03。一般可直接通过观察球管灯丝点亮情况发现。<p style="font-size: 16px;white-space: normal;line-height: 25.6px;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><strong style="max-width: 100%;font-size: 16px;letter-spacing: 1px;line-height: 25.6px;white-space: pre;color: rgb(68, 68, 68);font-family: 宋体;box-sizing: border-box !important;word-wrap: break-word !important;"><img data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdYC8aJhpufaoJlExySicbIpP7cQdXHXXfcuLQiclaSxv3314cyibibzgG3NwVMWooAPT68bENSyIWSZQ/0?wx_fmt=jpeg" data-copyright="0" style="width: 100%;height: auto;" class="" data-ratio="0.7686703096539163" data-w="549" data-backw="549" data-backh="422" /><p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: center;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">灯丝损坏示波表现：有KV，无MA<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">损坏原因分析：<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">1.X射线球管使用年久灯丝蒸发变细，X射线量减少，调试时为使其发射量不变，必须提高灯丝电压，加载超过规定值因而烧断灯丝。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">2.X射线管漏气后，真空度被破坏，大量的进气使灯丝通电后迅速氧化烧断，此时灯丝边阴对应玻壳内壁处有明显蒸发物。     <p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">3.灯丝变压器一侧短路电压升高。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">4.灯丝引线接触不好，焊接不良,或灯丝短路。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">5.高压电缆异常，有发现过大小灯丝一起亮的情况。由于KV的三根线是并接，此时可将阴阳极电缆对调以排除。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">判断：灯丝板有无输出电压，高压电缆空载能否测到电压, 没有则更换高压电缆看灯丝是否亮。X射线管窗口可见灯丝不亮。具体参见维修手册E03处理。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">三、管芯破裂<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">表现：这个需要看破裂部位，一般在铅窗后能看到裂纹可直接判断，其他部位管芯厂商才能看到，需要取出管芯，但可通过观察示波表波形来判断，示波表检测多为无高压，无KV，有MA。 <p style="font-size: 16px;white-space: normal;line-height: 25.6px;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><strong style="max-width: 100%;font-size: 16px;letter-spacing: 1px;line-height: 25.6px;white-space: pre;color: rgb(68, 68, 68);font-family: 宋体;box-sizing: border-box !important;word-wrap: break-word !important;"><img data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdYC8aJhpufaoJlExySicbIpnR5Rc1U1ERiaINtNxl3ltsyGoa7wzRJOVLWV73ApQ5gcCmz55SqrwTg/0?wx_fmt=jpeg" data-copyright="0" style="width: 425px;height: auto;" class="" data-ratio="0.88" data-w="425" /><p style="font-size: 16px;white-space: normal;line-height: 25.6px;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><strong style="max-width: 100%;font-size: 16px;letter-spacing: 1px;line-height: 25.6px;white-space: pre;color: rgb(68, 68, 68);font-family: 宋体;box-sizing: border-box !important;word-wrap: break-word !important;">球管管芯玻壳破裂<p style="font-size: 16px;white-space: normal;line-height: 25.6px;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><strong style="max-width: 100%;font-size: 16px;letter-spacing: 1px;line-height: 25.6px;white-space: pre;color: rgb(68, 68, 68);font-family: 宋体;box-sizing: border-box !important;word-wrap: break-word !important;"><img data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdYC8aJhpufaoJlExySicbIp1YEibmgBSobNkCfhN7jsEJMGsdMy0acfeH0n4QT1X0Ore8Fk3eUa39A/0?wx_fmt=jpeg" data-copyright="0" style="width: 411px;height: auto;" class="" data-ratio="1.170316301703163" data-w="411" /><p style="font-size: 16px;white-space: normal;line-height: 25.6px;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">管芯玻壳有氧化痕迹<strong style="max-width: 100%;font-size: 16px;letter-spacing: 1px;line-height: 25.6px;white-space: pre;color: rgb(68, 68, 68);font-family: 宋体;box-sizing: border-box !important;word-wrap: break-word !important;"> <p style="font-size: 16px;white-space: normal;line-height: 25.6px;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><img data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdYC8aJhpufaoJlExySicbIpVcNgu9Qp4vGLwbpWFIpSibMZFoLMLTFxwyicnE1a8NAubic5kJ6AQyt2Q/0?wx_fmt=jpeg" data-copyright="0" style="" class="" data-ratio="0.7867647058823529" data-w="408" /><p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: center;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">　示波表图<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">　损坏原因：<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">　1.厂家玻壳应力未消除，X射线管冷炸，厂家原因。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">　2.运输过程中外力损坏，主要出现在玻壳最大直径区，阳极封口区，裂纹不齐整，<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">　3.内击穿，X射线管残余气体多。客服现场见到的以此种情况为多。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">　4.外击穿，绝缘油耐压低或有导电质。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">　四、进气<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">　现象：表现为高压打火，MA不稳或下降。<p style="font-size: 16px;white-space: normal;line-height: 25.6px;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><img data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdYC8aJhpufaoJlExySicbIpr2dotHMXOhibF0T8zgicw5zQAa6dicuxq3ia0lt6SnmFVEZLn7pRyMzBRw/0?wx_fmt=jpeg" data-copyright="0" style="" class="" data-ratio="0.8" data-w="430" /><p style="font-size: 16px;white-space: normal;line-height: 25.6px;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">　图4.1<img data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdYC8aJhpufaoJlExySicbIpxhwBKRd5oq4iaXhjTspr88WEZm911keibveetN6rWe9Pwqr55uft8BWw/0?wx_fmt=jpeg" data-copyright="0" style="" class="" data-ratio="0.7546296296296297" data-w="432" /><p style="font-size: 16px;white-space: normal;line-height: 25.6px;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">　　图4.2<img data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdYC8aJhpufaoJlExySicbIpvVVibw26DCKMXVu3sTU4icib4lkE0yOBjcUI5HWsc9kHU46vQV90IAUSA/0?wx_fmt=jpeg" data-copyright="0" style="width: 455px;height: auto;" class="" data-ratio="0.734065934065934" data-w="455" /><p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: center;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">图4.3<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">进气更严重者会出现无KV，有MA的现象。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">轻微进气时，图像效果不好，穿透力不足，加管电压时图像影像清晰度反而下降。管芯真空度下降时，加高压管内有明显的淡绿，淡黄或蓝紫色辉光，MA指示异常。完全进气而引起的管内真空度破坏，加高压后两电极间有明显击穿放电现象，见管芯破裂漏气。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">损坏原因：<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">1.生产球管抽真空时有残留所体;<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">2.由于超大规模负荷使用或散热不好导致旋转阳极过热，使阳极铜柱与玻璃焊缝处胀裂进气。焦点严重熔化时溅落的金属钨可能使X射线管爆裂损坏，真空度降低。<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">五、球管漏油<p style="margin-bottom: 18px;max-width: 100%;min-height: 1em;white-space: normal;text-indent: 30px;color: rgb(85, 85, 85);font-size: 15px;line-height: 25px;text-align: justify;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);">由于密封件的损坏导致，此现象一般根据客户描述就可确认。如果明显的话，球管内有气泡，会产生高压打火。<p style="font-size: 16px;white-space: normal;line-height: 25.6px;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"> <p style="font-size: 16px;white-space: normal;line-height: 25.6px;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><strong style="max-width: 100%;font-size: 16px;letter-spacing: 1px;line-height: 25.6px;white-space: pre;color: rgb(68, 68, 68);font-family: 宋体;box-sizing: border-box !important;word-wrap: break-word !important;">赞是一种友谊 | 分享传递智慧 <p style="font-size: 16px;white-space: normal;line-height: 25.6px;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><strong style="max-width: 100%;font-size: 16px;letter-spacing: 1px;line-height: 25.6px;white-space: pre;color: rgb(68, 68, 68);font-family: 宋体;box-sizing: border-box !important;word-wrap: break-word !important;"> <p style="font-size: 16px;white-space: normal;line-height: 25.6px;max-width: 100%;min-height: 1em;color: rgb(62, 62, 62);text-align: center;font-family: 微软雅黑;box-sizing: border-box !important;word-wrap: break-word !important;background-color: rgb(255, 255, 255);"><strong style="max-width: 100%;font-size: 16px;letter-spacing: 1px;line-height: 25.6px;white-space: pre;color: 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