Titanium and titanium alloy materials in medical applications introduced

As a new titanium metal material, is to support cutting-edge scientific and technological progress of important raw materials, is the economic development and industrial upgrading of basic industries. A focus on producing large quantities of medical surgical implants method for manufacturing high-precision titanium and titanium alloy bars, especially in diameter h8-h7 tolerance levels between 3-3.5m length within the range of, placed on the working platform does not allow a gap medical precision titanium and titanium alloy rod manufacturing method, wherein, for the implementation of a method of manufacturing:

a) blank preparation, selected in line with titanium or titanium alloy ingot GB / T13810-2007 standard requirements as blank:

b) Forging of blanks for Forging, forged grinding, deburring and crack

Surface defects; forging deformation rate of 50-65%, pure titanium billet heating temperature of 950-1050 ℃, titanium materialHeating temperature alloy billets of 1000-1200 ℃, holding time is calculated after the heating temperature reached by the following formula:

D / 2 + 30 - 50 minutes (where D is the diameter of the ingot rod, in mm)

c) deformation processing, re-forging of the blank, followed by grinding, and finally rolling, forging deformation rate of 50-65%, pure titanium billet heating temperature of 850-1000 ℃, titanium billet heating temperature of 1000 -1150 ℃, the heating temperature is calculated to achieve the holding time after step (b) with the same formula.

d) heat, bars made of after step (c) for the recrystallization annealing, eliminate stress axis machining and grain structure formation, in which titanium rods annealing temperature 650-700 ℃, annealed titanium plates for sale rod temperature of 800-850 ℃, holding time to reach the heating temperature after step (b) is calculated with the same;

e) finishing on bars for drawing return first round, and then make oblique roll straightener straightening conduct cutting head, and finally polished; the heating temperature is 500-600 ℃, cut head and oblique roller leveler straightener straightening rods at both ends of the head is a defective part after straightening cut off;

f) inspection of the finished product tolerance levels, surface finish, surface quality inspection.