Structural changes of titanium rods and titanium alloy rods during hot extrusion

Titanium plates made of titanium and titanium alloys. Titanium processed products such as titanium rods, titanium tubes, and titanium wires have excellent performance, high specific strength, and corrosion resistance. They are important metals in aerospace, offshore oil industry, medical equipment and other fields. However, due to the high cost of titanium alloy manufacturing, In order to reduce its cost, the competitiveness of titanium alloys in the entire metal material market is increased at a lower price. It is generally believed that titanium has superior properties that other materials cannot match, but the price of titanium often discourages consumers (especially car manufacturers). The emergence of high-quality and low-cost titanium alloys will certainly help expand the application of titanium and titanium alloys.

Judging from the application status at home and abroad and the development of titanium processing technology, the plastic processing technology of titanium and titanium alloys will develop in the following directions in the future:

(1) High performance, that is, the development of alloys with higher service temperature, higher specific strength, higher specific modulus, better corrosion resistance and wear resistance.

(2) Multifunctionalization, that is, the development of titanium alloys with various special functions and uses, such as high damping, low expansion, constant resistance, high resistance, resistance to electrolytic passivation and hydrogen storage, shape memory, superconductivity, and low modulus biology Titanium alloys such as medical use to further expand the application of titanium and titanium alloys.

(3) Deepen the research of traditional alloys, improve the practical performance of existing alloys through equipment and process improvements, and expand the scope of use of traditional alloys.

(4) Adopt advanced processing technology, large-scale and continuous processing equipment, and develop continuous processing technology, direct rolling technology, cold forming technology and near net forming technology to improve the production efficiency, yield and product performance of titanium alloys .

(5) Low cost, develop alloys that do not contain or contain precious metal elements, and add cheap elements such as iron, oxygen, and nitrogen, and develop titanium alloys that are easy to process, easy to cut, alloy elements, and master alloys. Develop titanium alloys that maximize the use of waste materials and increase the recycling rate of waste titanium. This is particularly important for reducing the cost of civilian titanium alloys.

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Smelting and casting process of titanium and 6al 4v titanium plates

Titanium is stable in the air at room temperature; because titanium has a low density and high strength, the density is only half that of steel, but the strength is similar to steel, high-temperature resistance, low-temperature resistance, and corrosion resistance. The strength of titanium alloy is higher than steel. Titanium is known as "space metal" and can maintain high strength and mechanical properties in a wide temperature range of -253°C to 500°C. Since the 1950s, its proportion in aerospace has become larger and larger, and titanium alloys have become necessary materials for rocket engine shells, artificial satellites, and spacecraft.

Titanium maintains its own color tone for life at room temperature, and its unique silver-grey tone is highly polished and mercerized. Matte has a very good performance. It is the most suitable jewelry metal except platinum and gold. It is often used in modern foreign jewelry designs. However, due to the high processing technology requirements of titanium, it is difficult to cast it with ordinary equipment, and it is difficult to weld it with ordinary tools, so it is difficult to form a production scale. Titanium is light but extremely strong. It is an internationally popular jewelry material. In terms of design, its minimalist and clean-cut, high design and low-key avant-garde style are highly respected by young white-collar workers.

A titanium rod is a special metal. It has a small density and lightweight but has high specific strength and strong corrosion resistance. It will not turn black like silver and will maintain its silvery-white tone for life at room temperature. Titanium has a high melting point and is often used in aerospace. Military precision parts. In terms of chemical reaction, the strong corrosive "Aqua regia" can swallow silver and gold, and even erode the so-called "stainless" stainless steel. However, "Aqua regia" has no alternative to titanium. It has been immersed in "Aqua regia" for several years. Titanium is still shining! Titanium is also added to stainless steel to resist acid and alkali.

Titanium plate has a unique purpose in medical doctors. When titanium metal comes in contact with substances, there will be no chemical reaction. In other words, because of the high corrosion resistance and stability of titanium, it will not affect its essence after long-term contact with people, so it will not cause human allergies. It is the only one that has no effect on human autonomic nerves and taste. metal. Titanium is also called "biophilic metal". In the bone damage, fix it with a titanium splint and a titanium bone nail. After a few months, the bone will grow on the titanium splint and the thread of the titanium bone nail, and the new muscle will be wrapped in the titanium splint. "Titanium bone" is just like real bone, and even titanium artificial bone can be used instead of bone to treat fractures.

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