Preparation method of titanium steel composite plate
A clad plate, titanium steel technology, applied in metal rolling, manufacturing tools, metal rolling, etc., can solve problems such as poor bonding effect, and achieve the effect of preventing diffusion, improving bonding strength of composite interface, and high shear strength
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[0020] Such as figure 1 The preparation method of the titanium-steel clad plate includes the following steps: a. First, roughen the surface of the steel plate 1 and the titanium plate 3 to be compounded, and clean the steel plate 1 and the titanium plate 3 with acid to remove the stains on the surface and oxide layer; b, secondly, insert the niobium foil 2 between the steel plate 1 and the titanium plate 3, and assemble the blanks in the order of the steel plate 1, the niobium foil 2 and the titanium plate 3, wherein the blank parts around the blank are filled with side frames, and then Weld the gaps to obtain the combined billet; c. Vacuum the combined billet, then heat the combined billet at 875±15°C and then roll it, wherein the total rolling deformation is >78%, and the final rolling temperature range is 700-900°C; d, air cooling to room temperature to obtain the product.
[0021] The invention cleverly uses niobium as the intermediate transition layer, which effectively ...
Embodiment 1
[0028] Firstly, put the titanium-steel composite plate assembly with niobium-titanium-nickel double intermediate layer into the heating furnace for heating, the heating temperature is 875±10°C, and keep it warm for 4 hours; secondly, take out the combined billet that has completed the heating process, and carry out rolling. The pass deformation is 26%, after 11 rolling passes, the cumulative deformation is 83%, the rolling speed is 1.0m / s, and the final rolling temperature is 780°C; it is air-cooled to room temperature to obtain the product.
[0029] The shear strength of the titanium-steel composite plate obtained in this example is as high as 280 MPa.
Embodiment 2
[0031] Put the titanium-steel composite plate assembly billet with the niobium intermediate layer into the heating furnace for heating, the heating temperature is 900±10°C, and the heat preservation is 4.5 hours; the combined billet that has completed the heating process is taken out and rolled, and the deformation is 30% in the first pass. Rolling for 9 passes, with a cumulative deformation of 80%, a rolling speed of 0.5m / s, and a final rolling temperature of 790°C; air cooling to room temperature to obtain the product.
[0032] The shear strength of the titanium-steel composite plate obtained in this example is as high as 265 MPa.
[0033] It can be concluded from the above examples that the present invention effectively improves the bonding strength of the composite interface of the titanium-steel composite plate, improves the bonding effect of the titanium-steel composite interface to a certain extent, and especially effectively prevents the formation of titanium carbide, a...
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