Method for predicting dilution rate of single pass plasma cladding coating

Abstract

The application is applied to the prediction method of single-channel plasma cladding coating dilution rate, belongs to the technical field of plasma cladding, in order to solve the problem that the molten pool numerical model prediction molten pool depth-width ratio, dilution rate and actual working condition result exist deviation, the invention content includes the following steps: matching material and equipment parameter calculation total mass flow rate, the establishment of unit length arc total energy and metal melting energy quantitative relationship, deduce dilution rate theoretical prediction formula;Orthogonal experiment iteration optimization correction parameter, substitute formula calculation and prediction dilution rate and get average error, the present application is through the energy utilization efficiency analysis of incomplete melting of powder, and introduces the heat and mass transfer coupling mechanism of molten pool, solves the problem of insufficient prediction accuracy of existing model, realizes the high-precision prediction of molten pool morphology and dilution rate, and provides theoretical support for the forward design and optimization of plasma cladding process parameters.

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