vacuum oven
2.MATERIALS: The experiment was carried out in the Shandong Key Laboratory for Biopharmaceutics, Shandong Institute of Biopharmaceutics from February 2003 to January 2004. Experimental instrument: Mettler AE240 electronic analytical balance and ZK-40AB electrothermal vacuum drying oven were provided by Mettler-Toledo Instruments Co. , Ltd.
4.Aiming at a typical type of vacuum quenching furnaces , i. e. a horizontal and air-cooled vacuum quenching furnace with single oven, the 3-D parameterization design system (VQF-PDS) was developed as an application software to meet the requirements for parameterization design of such serial products.

