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margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; vertical-align: baseline; list-style: none; color: rgb(51, 51, 51); font-family: "Microsoft YaHei", simsun, "Helvetica Neue", Arial, Helvetica, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); text-align: center;"><img src="http://www.tfyqchina.cn/upload/images/201802/15194407827794.jpg" title="化妆品冻干粉" alt="化妆品冻干粉" style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; outline: 0px; vertical-align: bottom; list-style: none; background: url("../images/base/loader.gif") center center no-repeat; max-width: 98%; overflow: hidden;"/></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; outline: 0px; vertical-align: baseline; list-style: none; color: rgb(51, 51, 51); font-family: "Microsoft YaHei", simsun, "Helvetica Neue", Arial, Helvetica, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); text-align: center;">化妆品冻干粉</p><p> 医用冻干机：冻干粉生产工艺流程！主要工艺流程：分装好药液的安瓿或西林瓶→预冻→升华干燥→再干燥 </p><p>1、预冻：预冻是恒压降温的过程。 </p><p>2、升华干燥：冷冻干燥的主要过程，升华的条件：1、保证冰不熔化2、冰周围的水蒸气压低于饱和蒸汽压（有两种方法：一次升华法和反复冷冻升华法）</p><p>3、再干燥：升华完成后，物料内留下许多空穴，单物料的机制内还留有残余的未冻结水分10%左右，温度继续升高至0℃或室温，并保持一段时间，可使升华的水蒸气或残留水分被抽尽。在干燥可保证冻干制品含水量＜1%，并有防止回潮的作用。</p><p style="box-sizing: border-box; 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