Material of projection material for shot-ball peening, finished line, production method and projection material for shot-ball peening

摘要

Draw wiring, it finishes and preventing broken wire with the process which obtains the line, it offers the projection material by the material finished line of the projection material for shot-ball peening where you can obtain the improvement of productivity and the production method and the manufacturing method of the projection material for shot-ball peening where you can obtain the improvement of productivity. Process and the said wire rod which draw wire in the wire rod the annealing and the cold drawn are over again finished and the area which the carbide which is below grain size 2 millimicron with the said finished line the process which is made the line and, with, occupies finishes and the finished line of the projection material for shot-ball peening which is 80% or more of the area of the whole line. The material of the projection material for shot-ball peening which mass % with, carbon 0.95 - 1.10%, silicon 0.15 - 0.30%, manganese 0.40% or less, phosphorus 0.020% or less, the sulfur 0.010% or less, the chrome 1.40 - 1.60%, 0.0015% or less, contains oxygen, the remainder the iron and the inevitable impurity and consists of. The projection material by the production method and the manufacturing method of the projection material for shot-ball peening which uses this. Selective figure Figure 1