The parametric design of serial pumps for raising slurry based on Inventor was introduced. Pump for raising slurry can be divided into the components and the parts as a whole. First, established the assembly of the part model, and determined the part's specification through the parameter list and the procedure. Then modeled the components and finally composed again the assembly drawing. This method raised the efficiency of design ; carried out the movement simulation design according to the assembly modeling's design result ; examined the accuracy of the design; and finally the designer and the user can intuitively see the work process of this product.

A lot of design data are described in the form of curves in engineering design. Solubility curve is one of typical engineering curves and has the characteristics of engineering curves. Solubility curve was taken for an example. Methods of data sampling, data extraction, data sorting and storage of curves were put forward, and recognition of curves was realized during data extraction. Meanwhile, data sampling of curves were fitted by using Cardinal curve. Furthermore, digitizing of engineering curves was performed by using parabolic interpolation.