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<p style="text-align: left;">国家重大科技基础设施——浙江大学超重力离心模拟与实验装置（简称CHIEF）正在加紧建设中。</p>
<p style="text-align: left;">4月21日，在超重力实验大楼主机厅内，一座两层楼高的金属球冠形穹顶正在进行精密焊接。该穹顶是CHIEF项目中重载机CHIEF1900的真空容器的核心部件。它底部的密封法兰直径达22米，面积可容纳近30辆小轿车。真空容器按照太空环境模拟舱的标准建造，为超重力离心机提供一个低气压环境，气压仅为3000Pa~5000Pa，相当于标准大气压的3%-5%，比珠峰峰顶的气压还要低一个数量级。</p>
<p style="text-align: left;">建成后，它将成为全世界最大的真空容器之一。这一目标对穹顶的加工、安装提出了严苛要求，穹顶底面密封法兰的平面度需控制在4毫米以内，穹顶焊缝不允许有丝毫裂纹。</p>
<p style="text-align: left;">目前，CHIEF项目的模型机CHIEF1300已启用并陆续开展各项超重力科学实验，重载机CHIEF1900、高速机CHIEF1500也已进入调试阶段。</p>
<p style="text-align: left;"><img src="https://meizi-chao-pub.8531.cn/2046548293016764416_1280px.jpg?width=1280&amp;height=843" width="550" mediaid="20465464168039219203" type="app_image" style="display: inline; clear: both; margin: 0px;"></p>
<p style="text-align: left;"><img src="https://meizi-chao-pub.8531.cn/2046548293016764419_1280px.jpg?width=1280&amp;height=853" width="550" mediaid="20465464220635791363" type="app_image" style="display: inline; clear: both; margin: 0px;"></p>
<p style="text-align: left;"><img src="https://meizi-chao-pub.8531.cn/2046548293016764422_1280px.jpg?width=1280&amp;height=872" width="550" mediaid="20465464274162442243" type="app_image" style="display: inline; clear: both; margin: 0px;"></p>
<p style="text-align: left;"><img src="https://meizi-chao-pub.8531.cn/2046548293016764425_1280px.jpg?width=1280&amp;height=879" width="550" mediaid="20465464326332252163" type="app_image" style="display: inline; clear: both; margin: 0px;"></p>
<p style="text-align: left;"><img src="https://meizi-chao-pub.8531.cn/2046548293016764428_1280px.jpg?width=1280&amp;height=951" width="550" mediaid="20465464377754419203" type="app_image" style="display: inline; clear: both; margin: 0px;"></p>
<p style="text-align: left;"><img src="https://meizi-chao-pub.8531.cn/2046548293016764431_1280px.jpg?width=1280&amp;height=951" width="550" mediaid="20465464431700500483" type="app_image" style="display: inline; clear: both; margin: 0px;"></p><div class="moreInfo2"><p>“转载请注明出处”</p></div><p class="zrbja">责任编辑：袁龙海</p>

CHIEF超重力离心机真空容器穹顶进入精密焊接阶段

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