FIELD: mechanical engineering; methods of manufacture of the plates of the molybdenum alloy "ЦМ2А" used for the press forming.
SUBSTANCE: the invention is pertaining to the field of mechanical engineering and may be used at manufacture of the details of the electro-vacuum production (EVP) made out of the molybdenum alloy plates, in particular, of "ЦМ2А" brand by the press forming. The method provides for realization of the control over their mechanical properties during manufacture process, chipping of the samples, the vacuum annealing for removal of the strains caused by shipping. At that the annealing is fulfilled at the temperature of 650°С, and the control over the mechanical properties of the "ЦМ2А" plates is fulfilled by the random inspection of the samples hardness before and after the vacuum annealing and confirm preservation of the mechanical properties defined by the specification for the "ЦМ2А" plates by the calculations in compliance with the set dependences:δt =-174 + 3.745·HV, δ = 37.456 - 0.0848·HV, whereδt - the temporary resistance, n/mm2, δ - the relative elongation, %, HV - Vickers hardness (HV10). The technical result of the invention is conservation of the mechanical properties of the metallurgists delivered metal - the "ЦМ2А" plates till the moment of the press forming - draw, the possibility of stabilization and optimization of the production process for the metallurgists and the customers of the plates, the increased output of the suitable plates at the press forming, saving of the deficient metal, the increased reliability of the articles of the electro-vacuum production.
EFFECT: the invention ensures preservation of the metallurgists delivered metal mechanical properties till the moment of the press forming and draw, the possibility of stabilization and optimization of the production process for the metallurgists and the customers of the plates, the increased output of the suitable plates at the press forming, saving of the deficient metal, the increased reliability of the articles of the electro-vacuum production.
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