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.

The difference between titanium and titanium alloy plates

Titanium is a refractory metal of a light metal, a density of 4.5 g / cm3, 57% only of iron. Strength titanium alloy with high strength comparable to steel, but also has good heat resistance and low temperature performance, long-term work at certain alloy between 450 ℃ ~ 550 ℃ and minus 250 ℃. Titanium has good salt tolerance classes, the ability to seawater and nitric acid corrosion, Ti-30M alloy is resistant to high concentrations of hydrochloric acid and sulfuric acid corrosion. These advantages of titanium, grade 2 titanium wire deserved to be called a "space" metal, "Ocean" and the following metal steel, aluminum metal after the third and so on.
Titanium and titanium alloy material at room temperature forming plant, due to the forming force, a small amount of deformation limit and great resilience, which gave the manufacturing process brings a lot of difficulties, especially resilient, so that the hand injury the entire amount of labor large batch production can not meet the requirements.
The hot press forming is generally used in the manufacture of seamless titanium tube metal pieces and effective process methods, this method can be at room temperature (or heated state F) molded item, reheat Shaping: pull the materials can be directly used to form a heat and Hot school shape. Whether it is hot forming and heat were collapsed to form the school principle creep and relaxation of effort.
Thermoforming mainly take advantage of the softening and creep properties of the material in a heated state, and to improve the plastic to reduce and improve the molding forming force than to avoid cracking, but also reduce some rebound. Thermal Shaping mainly using the principle of stress relaxation in the heated state, in order to eliminate the springback, solve the problem of the precision of the parts due to the problems caused by springback.
In order to understand the mechanism of heat and hot forming shaped school must master creep and stress relaxation of principle. Month away, but this rationale Mrs perish only the right to development, but more with ten design chemical, atomic, gas and gas turbine boil, supersonic aircraft, spacecraft and other buildings of the structure of the product.
Titanium and its alloys as popular as the reason for the absence of aluminum, mainly due to high prices. To reduce costs, the new process for anyone conducting research abroad titanium alloys, such as electrolysis and direct reduction method, once the breakthrough will significantly decrease the cost of titanium sponge, will greatly stimulate the development of titanium grade 2 industry, we can only trace of such studies , can ensure China's titanium industry invincible. Besides the lack of significant capital investment in the processing of titanium and its alloys and titanium forming technology processing technology and applications, thus limiting the vigorous development of titanium industry.

titanium bar stockist Titanium is a chemical element with the symbol

Titanium is a chemical element with the symbol Ti, atomic number 22 , is a silvery-white transition metal , characterized by light weight , high strength , with a metallic luster , have a good corrosion resistance ( including sea water, aqua regia and chlorine ) . [ 1 ] Due to its chemical stability , excellent high temperature, low temperature resistance, anti- acid, anti- alkali and high-strength , low density , Known as "space metal ." Titanium in 1791 in Cornwall, England discovered by titanium rod stock Gregor by Klaproth for the Titans of Greek mythology with the name .
Titanium is considered a rare metal , which is due to the presence of a dispersion in nature and difficult to extract . But its relative abundance ranks tenth in all elements. Titanium ores ilmenite and rutile are mainly widely distributed in the earth's crust and lithosphere being . Titanium also exists in almost all living organisms , rocks, water , and soil. The main ore extracted from the need to use titanium Kroll process or the Hunter process . The most common compounds are titanium dioxide, a white pigment can be used in the manufacture . Other compounds include titanium tetrachloride (TiCl4) ( as a catalyst for the manufacture of smoke or air and text ) and titanium trichloride (TiCl3) ( for the catalytic production of polypropylene ) . [ 2 ]
The two most useful properties of titanium , the corrosion resistance , the highest intensity and metal - weight ratio. In unalloyed condition, titanium strength comparable with some of the steel , but also 45% lighter . There are two allotropes and five natural isotopes from Ti to Ti, which is the highest abundance of Ti (73.8%). Chemical and physical properties similar to titanium and zirconium , which is the same as the number of valence electrons of the two, and belong to a family in the periodic table .