| 摘要 |
PROBLEM TO BE SOLVED: To obtain a controlling method capable of determining thermal spraying conditions excellent in reproducibility for obtaining desired sprayed coatings by obtaining any one among the required adhesion strength. film strength, and film wear amount which are represented, respectively, by quadratic regression expressions by the use of oxygen flow rate, propane flow rate, and thermal spraying distance as control factors. SOLUTION: For example, required adhesion strength (Yσ) can be easily obtained on the basis of an equation by using oxygen flow rate (X1 ), propane flow rate (X2 ), and thermal spraying distance (X3 ) [where respective units of adhesion strength, oxygen flow rate, propane flow rate, and thermal spraying distance are Mpa, slpm, slpm, and m, respectively] as control factors at the time of forming a CrsCz-NiCr film by high speed gas flame spraying. In this way, thermal spraying capable of providing required adhesion strength can be performed, and also a film excellent in reproducibility can be obtained. By using similar techniques with respect to film strength and film wear amount, desired films can be obtained. |
