2015年1月28日星期三

Although titanium sponge material in the Second

Secondary smelting produce consumable content of impurities TA2 pure milled raw material ingot Table relationship , which is the average of 100 titanium ingots . As can be seen from the table, iron , titanium ingot and the nitrogen concentration of the titanium sponge plant has not changed , the purification effect of sky ; silicon, carbon and oxygen titanium sponge increased slightly , and no purification effect, but in the smelting process is increased impurity contamination volume ; Lee hydrogen chloride purification obvious effect , do not hold the product in a reduced number of chlorine and level . It also shows that the main role of vacuum distillation . Both the total amount of impurities from the point of view , slightly lower titanium sheet metal than the titanium ingot of titanium sponge plant impurities, by lowering the melting sponge drink chlorine , and slightly increases the oxygen and other impurities. In short , a slight increase in the purity of titanium , but it remains in a substantially horizontal magnitude .State Reserve policy affected by early December , some titanium sponge plant titanium sponge enterprises to improve the sales price,so despite favorable policies , but did not titanium alloy plates change the current market downturn titanium sponge plant trend.Some titanium sponge plant enterprises raise product prices , but signs of recovery as the market did not like before . Since downstream firms reflect flat, high offer titanium sponge plant enterprises become castles in the air , and soon dropped back to previous levels. And during the bidding , some companies did not follow the big companies with price increases.

2015年1月24日星期六

Scene of titanium sponge

Improve pouring liquid metal mold in pressure but also by the electromagnetic force to the liquid metal to achieve, this approach is the magnetic casting. Its basic principle isto cast off the magnetic titanium pumps is installed in the liquid metal to pass, in order to establish the magnetic field; at the same time, DC are also introduced into thissegment has established the field of liquid metal flow, in alternating magnetic and electric fields, the formation of the electromagnetic force direction and the liquid metalflow the same, in order to improve the liquid metal mold filling pressure. This method can be used to make the metal in the mould cavity flow than static casting by directvelocity metal indenters the runner to increase 2~2.5 times. 1 liquid metal is poured into the runner must maintain the continuity of liquid metal flow, intermediate cannotappear to flow.
So we must pay great attention to the sprue size design and electromagnetic Titanium alloy valves and current value choice. The 2 magnetic pump should be placed in the water outside the level, thereby reducing the consumption of metal casting system.
The 2 magnetic pump should be placed in the water outside the level, thereby reducing the consumption of metal casting system.
3 liquid metal mold filling should be carried out in magnetic pump pressure 0.01~0.05MPa, so as to ensure the liquid metal to flow speed requirements in the cavity, avoiding intermediate drying. In the mold is filled, we should raise the magnetic pump pressure to 0.12~0.3MPa, to improve the feeding ability of castings, castings appear to prevent hole.

2015年1月20日星期二

titanium sponge powder is mainly used in which a few respects

In the production process of titanium to toxic chemical medium chlorine (chemical weapons in World War II oh) and noble metal magnesium, and the reaction process requires a lot of energy, which is why titanium expensive. The smelting process oftitanium is not to be used for production, because it is porous shape, resembling asponge, called titanium sponge, titanium alloy pump will be placed in vacuum consumable electrode arc furnace smelting titanium ingots, plates, rods, tubes and for other formsof titanium production. Titanium is rich in resources, mineral resources are relatively concentrated, converted into TiO2 total reserves of 90 million tons, is the first in the world. The main distribution of titanium ore, the reserves accounted for 35% of the world's total reserves. However, compared with the world's major mineral producing area, natural Jin Hongshi (TiO2) less resources, easy exploitation of placer less.Titanium, titanium iron ore more symbiotic, smelting high initial cost. Here also need to refer to a story, the original iron and steel smelting steel slag after stacked in a cornerfor a long time to climb, we did not find this kind of slag inside unexpectedly containprecious metal titanium. Later proposed to buy our slag, concrete truth that make our national attention on the Panzhihua Iron and steel slag, of course rejected japan.
titanium sponge industry started in twentieth Century 1954 50 years, non-ferrous metalbegan to research on the preparation of sponge titanium, titanium metal as thestrategy on the 12 year development plan, in 1958 in the industrial test of spongetitanium, founded the first titanium sponge production workshop, at the same time,non-ferrous metal processing plant was established the first titanium processing material trial production workshop. Before and after 1980, the titanium spongeproduction reached 2800 tons, but because most of them were lack of knowledge on the titanium, titanium pumps high prices also limit the application of titanium, titanium processing material production is only 200 tons, titanium industry in trouble.

2015年1月16日星期五

Titanium sponge, packaging and storage

In the production process of titanium to toxic chemical medium chlorine (chemical weapons in World War II oh) and noble metal magnesium, and the reaction process requires a lot of energy, which is why titanium expensive. The smelting process oftitanium is not to be used for production, because it is porous shape, resembling asponge, called titanium sponge, titanium alloy pump will be placed in vacuum consumable electrode arc furnace smelting titanium ingots, plates, rods, tubes and for other formsof titanium production. Titanium is rich in resources, mineral resources are relatively concentrated, converted into TiO2 total reserves of 90 million tons, is the first in the world. The main distribution of titanium ore, the reserves accounted for 35% of the world's total reserves. However, compared with the world's major mineral producing area, natural Jin Hongshi (TiO2) less resources, easy exploitation of placer less.Titanium, titanium iron ore more symbiotic, smelting high initial cost. Here also need to refer to a story, the original iron and steel smelting steel slag after stacked in a cornerfor a long time to climb, we did not find this kind of slag inside unexpectedly containprecious metal titanium. Later proposed to buy our slag, concrete truth that make our national attention on the Panzhihua Iron and steel slag, of course rejected japan.
titanium sponge industry started in twentieth Century 1954 50 years, non-ferrous metalbegan to research on the preparation of sponge titanium, titanium metal as thestrategy on the 12 year development plan, in 1958 in the industrial test of spongetitanium, founded the first titanium sponge production workshop, at the same time,non-ferrous metal processing plant was established the first titanium processing material trial production workshop. Before and after 1980, the titanium spongeproduction reached 2800 tons, but because most of them were lack of knowledge on the titanium, titanium pumps high prices also limit the application of titanium, titanium processing material production is only 200 tons, titanium industry in trouble.

2015年1月12日星期一

Sponge titanium and titanium sponge powder is mainly used in which a few respects

The strength of titanium, titanium tensile strength up to 180kg/mm2. Some of the strength of the steel is higher than that of titanium alloy, but the titanium alloy than strength (tensile strength and density ratio) was more than the high quality steel. Titanium alloy with heat resistant strength, low temperature toughness and fracture toughness is good, so it is much used for aircraft engine parts and rocket, missile structure. Titanium alloy can also be used as a fuel and oxidizer tank and high pressure vessel. Now has a titanium alloy for manufacturing automatic rifle, the launch tube of mortar base plate and recoilless gun. In the oil industry mainly for various vessel, reactor, heat exchanger, distillation tower, pipe, pump and valve etc.. Titanium can be used as electrode and a power station condenser and environmental pollution control device. Titanium nickel shape memory alloy has been widely used in instruments. In the medical treatment, Sunrui Titanium Casting Golf Heads can be used as artificial bones and various utensils. Titanium or steelmaking deoxidizer and stainless steel and alloy steel components. Titanium dioxide pigment and paint is a good raw material. Titanium carbide, carbon (hydrogen) is a new type of titanium carbide materials. Titanium nitride color close to gold, widely used in decoration. Titanium and titanium alloys used in large quantities for the aviation industry, "space metal" known; in addition, is widely used in the shipbuilding industry, chemical industry, machinery parts manufacturing, telecommunications equipment, hard alloy, etc.. In addition, because the titanium alloy also has good compatibility with the human body, so the titanium alloy can also be used for artificial bone. The corrosion resistance of Sunrui titanium golf clubs zirconium nitrate and hydrogen titanium zirconium oxide is a kind of application in the atomic energy industry and used as a corrosion resistant chemical materials under high temperature and pressure, but in the lively after sodium solution. Then, the titanium hydroxide solution added live wave zirconium nitrate solution, will find that to shut sb. titanium zirconium nitrate. As you can see, there are the obvious layered graph, the above is zirconium nitrate, below is the titanium hydroxide. We know, titanium hydroxide is less than the density of zirconium nitrate, but can still maintain the obvious stratification, and zirconium nitrate stay in the upper, which proves that the corrosion resistance of titanium. According to the experiment, titanium into the ocean of annual 20~50 won't be corroded.

2015年1月8日星期四

Titanium alloy plate prices

Titanium alloy plate at the current price trend is not particularly good, the recent domestic titanium plate market demand are relatively sluggish, prices remain low stage, the short term, the market price will be difficult to recover, the current 2mm pure titanium plate price in the 105-115 yuan / kg (15.51-16.99 dollars / kg). titanium alloy casting is a metallic element, grey, atomic number 22, relative atomic mass 47.87. Combustion in nitrogen, high melting point. Blunt titanium and titanium based alloy is a structure with new materials, mainly for the aerospace industry and marine industry.
Titanium density of 4.506-4.516 g / cubic centimeters (20 DEG C), higher than that of aluminum and iron, copper, nickel below. But in the first than the strength of the metal, is 3 times of stainless steel, is the aluminum alloy [colored business: 1.3 times of the aluminum alloy plate]. The melting point of 1668 - 4 DEG C, the latent heat of fusion of 3.7-5.0 kcal / atom, the boiling point of 3260 plus or minus 20 DEG C, the latent heat of vaporization of 102.5-112.5 kcal / atom, the critical temperature of 4350 DEG C, the critical pressure of 1130 atm. Poor thermal conductivity and conductive properties of Titanium Golf Club Heads , similar to or slightly lower than stainless steel, titanium superconductor, superconducting critical temperature of pure titanium 0.38-0.4K. At 25 DEG C, titanium heat capacity is 0.126 cards / atom and degree, 1149 card / molecular enthalpy, entropy is 7.33 cards / atom and degree, metal titanium is paramagnetic material, permeability is 1.00004. Titanium has plasticity, extending high pure titanium rate can reach 50-60%, section shrinkage rate of 70-80%, but low strength, not as structure material. Titanium in the presence of impurities, a great influence on the mechanical properties, especially the interstitial impurities (oxygen, nitrogen, carbon) can greatly improve the strength of titanium, significantly reduced its plastic. Good mechanical properties with titanium as a structural material, through strict control of the impurity content is appropriate and adding alloy elements and to achieve.

2015年1月4日星期日

Titanium alloy

Titanium alloy is with titanium alloy added other elements. There are two kinds of different titanium crystal: 882 DEG C for close packed six party structure titanium pumps , 882 DEG C beta titanium as the body centered cubic. Alloy elements according to their influence on the phase transition temperature can be divided into three categories:
A stable alpha phase, increase the phase transition temperature of the element as the alpha stable elements, aluminum, carbon, oxygen and nitrogen. The aluminum is the main alloy titanium alloy elements, it is to reduce the quality of the alloy at room temperature and high temperature strength, elastic modulus, increase proportion has obvious effect.
The stability of beta phase, reduce the transition temperature element for beta stable elements, can divide again isomorphous and eutectoid type two. The application of titanium alloy pump alloy products, the former are molybdenum, niobium, vanadium; the latter with chromium, manganese, copper, iron, silicon, etc..
The phase transition temperature has little effect on the element as the neutral element, a zirconium, tin etc.. Oxygen, nitrogen, carbon and hydrogen are the main impurities in titanium alloy. Oxygen and nitrogen has greater solubility in the alpha phase, there are significant strengthening effect of titanium alloy, but the plasticity decreased. Usually the provisions of oxygen and nitrogen in titanium content in 0.15 ~ 0.2% and 0.04 ~ 0.05% below. The solubility of hydrogen in the alpha phase is very small, too much dissolved in titanium alloy hydride hydrogen will be produced, the alloy brittle. Usually in titanium alloy hydrogen content of 0.015% control in the following. Dissolved hydrogen in titanium is reversible and can be used to remove the vacuum annealing.