2015年8月10日星期一

Titanium and titanium alloy wire as an important species Titanium series, titanium wires in terms of production, specifications and applications now have made great progress. The general sense of titanium and titanium alloy wire refers to the circular disk form supply titanium products, but also in the form of straight wire supply, the diameter, the division of the rod and wire is not critical, countries are also different. Titanium wire and titanium alloy materials as metal materials in the leader, with a series of other metals unparalleled performance, and therefore has developed rapidly in recent years, and is widely used in high-tech fields quickly aerospace and military industry. United States, Russia, Japan, China and other countries in the world have attached great importance to the research and development of titanium alloy, titanium wire and constantly develop new titanium alloy materials, to expand the application of titanium and titanium alloy. Due to the deepening of research and product range increase, and now a lot of titanium products, such as titanium wire etc. have also been more and more into a variety of civilian consumer goods.
 

2015年8月6日星期四

Titanium wire forming stable carbides with carbon a higher hardness. titanium wire Growth carbidelayer between titanium and carbon diffusion rate of titanium carbide layer to decide.
The solubility of carbon in titanium is small, at 850X: When the total is 0.3% at 600C and at approximately 0.1% B drops due to the small solubility of carbon in titanium, so that substantially only by titanium carbide layer and the lower fork domain deposited layer to achieve the purpose of surface hardening. Removal of the oxygen must be carried out under conditions of carburizing, the surface layer hardness as carburizing for steel powder used against carbon monoxide or oxygen to form carbon monoxide surface reaches 2700MPa and 8500MPa, and the head. It is easy to peel off.
In contrast to this, in the deoxidation or decarburization conditions, it may be formed in the charcoal thin carburized layer of titanium carbide. This layer hardness 32OUOMPa, conforming to the hardness of titanium carbide. Carburized layer is substantially greater than the depth of the nitrided layer under the same conditions when the nitriding depth with nitrogen. In the oxygen-rich conditions must take into account the effects of oxygen absorption hardening depth. Only under conditions of very thin thickness, titanium wires in a vacuum or argon - methane atmosphere before the toner may penetrate a sufficient adhesion strength comparison, using a gas carburizing agent may form hard and particularly good adhesion titanium carbide hardened layer. While the 950T: and 10201: temperature between the conditions for the formation of hardened exhibition in 50fim between and. With the increase of the thickness of the titanium carbide layer becomes more brittle and tend to flake t To avoid decomposition leaving Rui alkyl carbon inclusions invasion of titanium carbide layer, it should be used about 2% volume fraction Rui alkyl provisions dose additive gas carburizing in an inert gas. When using propane additive use methane is formed when carburizing low surface hardness. When the adhesive force reaches Wu Mao OkPa conditions when using propane gas carburizing, although the measured thickness of the hardened layer is very thin, but with the best wear resistance. Absorption of hydrogen in the gas type carburizer conditions using either, but had to remove it in the vacuum annealing.

2015年8月2日星期日

Titanium and titanium alloys because of corrosion resistance,titanium wire price  high strength, non-magnetic, high biocompatibility, ultrasound impedance smaller, higher sound transmission coefficient, hydrogen storage and better series of shape-memory function excellent characteristics important value, which in the aerospace, petrochemical, medical and health, automotive, construction, and sports and leisure goods and many other areas had an important purpose. But in recent years because of its continuous development of increasingly numerous varieties, which provide more choice in high-performance industrial supplies and consumer goods applications. The following aspects on the status of the application to the system introduced titanium and titanium alloy wire material.
1983 revision of the standard uniform of titanium into the national standards, simply cancel the name of titanium wire standards, and formulated the GB3623-83 "titanium and titanium alloy wire" standard, standard "chemical composition of the wire rod in line with GB3620-83 (titanium and titanium alloys and chemical composition) provides "that the chemical composition completely deformed titanium and titanium alloys and other materials the same. "Titanium and titanium alloy wire," states: "This standard applies to circular titanium and titanium alloy wire corrosion-resistant parts, electrode materials and welding materials and other uses." That is expressly ordinary wire structure used as the titanium wire.
From titanium standard, China's production of titanium in terms of chemical composition or mechanical properties of titanium have basically reached international advanced level. But no real standards and product titanium wire, titanium wire structure serving as titanium wire the wire, so that our titanium wire lowest in the world. The amount of titanium wire only about 2% of the amount of titanium, it is that 2% of low-quality titanium wire titanium pressure vessel to reduce the overall plasticity reserve, greatly lowered the level of quality titanium pressure vessel. For users titanium pressure vessel, the investment cost titanium pressure vessels eventually high quality using low-cost titanium wire does not make much of an investment savings, and has been low-quality titanium pressure vessel, it should be said, the economy is very uneconomical.