Process method of producing high-grade TC4 alloy hot rolled plate with high material-obtaining rate and low cost
A process method and technology of material yield, applied in the field of high-quality TC4 alloy hot-rolled plate production at low cost with high material yield, can solve the problems of large amount of grinding of hot-rolled billets or finished plates, low material utilization rate, and high production cost. Achieve the effect of improving material yield, easy process and low production cost
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 The 14×1000×1600mm specification TC4 plate prepared by the above-mentioned process method has no cracks after the finished product is rolled; the raw material slab yield rate reaches 92%, and the raw material finished product yield rate reaches 72%. The structure of the finished plate is relatively uniform, consisting of equiaxed α+flaky α and intergranular β, with a grain size of 12.5; the yield strength of the finished plate is 905 MPa, the tensile strength is 940 MPa, and the elongation is 16%, which is better than the national standard of TC4 plate and American standard related standards. Its metallographic structure is as figure 1 shown.
 The 4 × 1000 × 2000mm TC4 plate prepared by the above process method has no cracks after rolling the finished product; the raw material slab yield rate reaches 92%, and the raw material finished product yield rate reaches 70%. The finished plate has a uniform structure, consisting of primary equiaxed and elongated α + secondary flake α + intergranular β, with a grain size of 12; the yield strength of the finished plate is 945 MPa, the tensile strength is 990 MPa, and the elongation is 19.5%, which is better than TC4 sheet national standard and American standard related standards. Its metallographic structure is as figure 2 shown.
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