The list of titanium benefits is lengthy

The list of titanium benefits is lengthy. This makes it incredibly useful for a number of different industries, including the automotive, aerospace and architectural worlds. But because titanium resists corrosion, is biocompatible and has an innate ability to join with human bone, it has become a staple of the medical field, as well. From surgical titanium instruments to orthopedic titanium rods, pins and titanium plate, medical and dental titanium has truly become the fundamental material used in medicine.

Titanium is a new structural material

Titanium is a new structural material, it has excellent performance, such as low density (4.5gcm-3), high specific strength and fracture toughness, fatigue strength and resistance to crack growth, good low-temperature toughness, corrosion resistance excellent, the maximum operating temperature of some titanium alloys for 550 / C, is expected to reach 700 / C. So it gets increasingly widely used in aviation, aerospace, chemical, shipbuilding and other industrial sectors, is developing rapidly. Light alloy, steel, etc. (σ0.2 / density) versus temperature, stronger than the titanium alloy is higher than other light metals, steel and nickel alloys, and this advantage can be maintained to 500 / C or so, so some titanium suitable for manufacturing gas turbine components.

The production of titanium and titanium military profile

Titanium has many obvious superior characteristics: density (4.5kg / m3), high melting point (1660 ℃), corrosion resistance, high strength, good plasticity, but also through alloying and heat treatment methods to produce high mechanical properties the variety of alloys, is an ideal material for aerospace engineering structures. With a certain amount of oxygen, nitrogen, carbon, silicon, iron and other elements α phase titanium impurities. Stamping process with excellent performance, good weldability, and heat treatment is not sensitive to the type of tissue has a certain strength at a satisfactory plasticity conditions. Commercially pure titanium content of impurity elements in accordance with the division level. Its main strength depends on the content of oxygen interstitial elements, nitrogen. It has a high corrosion resistance in sea water, but poor in mineral acid. Generally used for manufacturing at a temperature -253 ~ 350 ℃ work discontinuity large variety of sheet metal parts or forgings, can also be manufactured rivets, wire and tubing. Application examples: Industrial use of commercially pure titanium in addition to manufacturing parts, extensive use of titanium alloy. It gets in the aviation, aerospace, chemical, shipbuilding and other industries increasingly wide range of applications, gas turbine component manufacturing, production of biological materials such as prosthetic devices. The density of titanium is generally about 4.5g / cm3, only 60% of steel, titanium's strength was close to the strength of ordinary steel, some high-strength titanium alloy structural strength than a lot of steel. Therefore, the ratio of titanium strength (strength / density) is much larger than other metal structures can be made out of high unit strength, rigidity, lightweight parts and components. At present, aircraft engine components, skeleton, skin, so the use of titanium fasteners and landing gear.

The use of titanium in the military industry, primarily titanium and titanium alloys have excellent performance based on: (1) reduce the structural quality, improve structural efficiency. Tactical and technical performance requirements of advanced aircraft structure has a relatively low quality factor (ie, the quality of the body structure / aircraft normal takeoff weight), low density powdered metal suppliers alloy, high strength, instead of structural steel and high temperature alloys, can greatly reduce the structural quality. Heat resistance (2) meet the temperature requirements of a titanium alloy. Currently hot strength titanium alloy by alloying the maximum temperature up to 500 ° C ~ 600 ° C, the temperature structure of the Titanium Flange Screwalloy also use up to 300 ° C ~ 400 ° C, the TI-64V can be used at 350 ° C under the long-term work, not at the high temperature of the plane (such as the rear fuselage, etc.) can be replaced by high-temperature performance does not meet the requirements of aluminum, TC11 long-term work at 500 ° C under the engine compressor components can be replaced by high-temperature alloys and stainless steel. (3) can be matched to the composite structure. To reduce the structural quality and meet the requirements of stealth, advanced aircraft extensive use of composite materials, the strength of titanium and composite materials, better match the stiffness, can get a good weight loss, and because both potential closer, easy to produce electricity Galvanic corrosion. (4) excellent in corrosion resistance. Titanium tube fittings is more excellent than other metallic materials and corrosion resistance in neutral oxidizing atmosphere and many harsh environments, small extent constrained by environmental conditions.

Preparation of titanium machining process in the rough

       Titanium is a very active metal elements, and can effect all the elements, titanium during heating, can interact and oxygen, the oxide film formed on the surface. At different heating temperatures, the structure and properties of the oxide film is different. Thermoforming titanium complex, each batch is different mechanical properties, in order to ensure the quality of materials, manufacturers are available certificate and test report.
       1. Preparation of titanium raw material supply state requirements
       A titanium plate deformation - in metallurgy factory rolled into sheets of poor performance repeatability. Domestic and foreign production of titanium same composition, mechanical properties of the difference is not small; domestic different sheet metal factory production, performance is not the same, even if a plant product, different furnace number of its mechanical properties are not the same. Therefore, in order to ensure the quality of the parts, you should first make sure that the quality of raw materials. Treasury requisitioned from titanium and titanium sheet, should be equipped with the manufacturer factory certification and factory re-inspection certificate. In order to facilitate future verification, certification should be saved. When necessary, the basic situation of each plant can manufacture sheet metal parts to make records to future reference.
       All the plates were annealed condition require supply. To ensure the quality of the parts should be removed oxide and other pollutants plate surface. Titanium surface may not have cracks, peeling, crimping, inclusions and other defects, as well as through the traces of pickling. Sheet should be straight and wrapping paper out of the library. In the material after forming, assembly, transport and storage process, should be taken to prevent surface scratches.
       2, titanium rough cutting
       Wool preparation methods used in a variety of sheet metal parts, there are many similarities. Since the titanium plate thickness generally used in less than 2 mm, and a thickness of 1.5 mm or more parts so few titanium plate cutting can utilize existing equipment at room temperature.
       When cutting, should pay attention to try to make the edges smooth wool, particularly to prevent the edges of cracks, bite wounds and cut marks and other defects, in the cut planks should pay attention.
       Before forming wool deburring and removal should be sharp edges. Because of the sensitivity of titanium crack growth is strong, this work is extremely important, in order to eliminate the stress concentration to prevent cracking and scratches wool die during forming. Available cutting and filing, or sandpaper belt grinding deburring or polish.
       It should be noted that regardless of which method is used under the material, when crossed, only use non-polluting ink and pen, is not allowed to play in the wool stamp, offset or specially equipped only play tag.
       3, before forming degreasing and cleaning
       Before any thermoforming, should remove surface grease, or other contaminants, in order to avoid contamination of the titanium produced when heated. In addition, the surface of the oxide wool reduces plastic material, should be removed prior to forming. Therefore, in order to reduce the impact of various types of atmosphere environment, generally using a vacuum hardening furnace and vacuum annealing furnace heating, vacuum furnace inert gas can protect titanium and titanium alloy materials in the heating process from contamination.