titanium foundry casting titanium and titanium alloy pressure

Good melting of titanium with a certain degree of superheat liquid by turning the crucible, casting by pouring cup was sent to the room, under the effect of pressure die-casting rod, casting type liquid titanium foundry into the cavity from the casting room, die casting good at casting type inner packing, cooling, and then removed. To eliminate casting surface may produce cold traps, flow marks or other defects due to cast, especially the thin edge. Die-casting should be preceded by the type of warm-up. Arc melting is used as a heating source, in addition, a vacuum aerospace titanium may also be used in induction heating, electron beam heating, or the suspension smelting. Heat-resistant steel casting-type material used in severe erosion by liquid titanium foundry molybdenum or special places may be inlaid graphite block. Casting chamber die casting machine uses heat-resistant alloy. Pressing the piston head with a molybdenum alloy or heat-resistant alloy. Type casting surface roughness should not be less than Ra≈0.6μm, otherwise, it should affect the surface quality precision castings. To improve the life of the mold and die casting part, a lubricant may be sprayed on their work surface.

Titanium sponge and impact on the future development of the market

In a recent meeting of experts of titanium and titanium alloy Thirteenth National Symposium confirmed: From the perspective of cities across the country , in addition to outside Luoyang , China does not have a region or city has a complete industrial chain of titanium , however Luoyang City can titanium sponge production of titanium ingots , but Titanium castings also can produce titanium sponge into titanium mill until the production of titanium equipment. China is currently the only city which has a complete industrial chain of titanium - " Titanium City ."It is understood that , after 40 years of development, China has become after the United States , Japan, Russia and the fourth has a complete industrial system titanium sponge titanium country . Experts, a complete industrial chain of titanium sponge , the main components products are: titanium sponge ( base material ) - titanium cast ( casting ) , semi-finished products , titanium processing material ( sheet, strip, tube , rod ) - titanium parts and titanium equipment manufacture. Although the country as a whole , China's titanium industry with complete system , but on a city or a region, titanium foundry currently has only met the requirement of Luoyang whole industry chain.Titanium sponge as materials research and application of marine focal point, located in Luoyang, China Shipbuilding Industry Corporation Institute is one of the seven two five research institutes to carry out a few handful of domestic titanium systems research , applied research in titanium areas represent the national level.

Use titanium sponge instead of stainless steel high pressure

 As another example, the SR - 71 high speed scout (flight Mach number is 3, altitude 26212 meters), titanium accounted for 93% of the plane structure weight, so-called "titanium sponge" aircraft. When aeroengine in esteem than increased from 4 to 6 to 8 ~ 10, compressor outlet temperature accordingly increased to 500 from 200 ~ 300 ° C to 600 ° C, originally made of aluminium low-pressure compressor disk and blade must use titanium alloy material, or use titanium sponge instead of stainless steel high pressure compressor disk and blade, in order to reduce the structure weight. In the 70 s, the dosage of titanium alloy in the aircraft engine generally accounts for 20% ~ 30% of total weight structure, mainly used in the manufacture of compressor parts, such as forging of titanium fan, compressor disk and blade, titanium compressor casing, intermediate Titanium casting, bearing housing, etc. Spacecraft, which make use of the specific strength of titanium alloy, corrosion resistance and low temperature resistance to manufacture all kinds of pressure vessel, fuel tank, fasteners, instrument strap, architecture and rocket shell. Artificial earth satellite, the lunar module, manned spacecraft and space shuttle USES titanium alloy plate weldments. Titanium‬ precision castings,‪#‎Titanium_castings‬ Sunrui‪ Titanium‬ precision castings,‪Titanium castings‬  www.sunrui-titanium.com

Future of titanium sponge powder

Strategic metals - titanium (Titanium): element symbol Ti, atomic number 22, atomic weight 47.88, located on the 4th cycle ⅣB family in the periodic table. Titanium is one of the most widely distributed crustal abundance of elements in high (6320 × 10-6), accounting for 0.61% by weight of the crust columns ranked 9; resources are second only to iron and titanium sponge, aluminum, magnesium and column ranks section 4, is an important raw material preparation slag, synthetic rutile, titanium dioxide, titanium sponge, titanium metal and titanium, welding rod coatings. Because titanium silvery white, with a high melting point (1727 ℃), light weight (4.5), high mechanical strength (5), low temperature (ultra low temperature resistivity is almost zero), abrasion resistance, good plasticity titanium wire (can thin-walled use), easy to oxidation, reduction and other characteristics; titanium oxide - titanium dioxide (titanium dioxide), with non-toxic, good physical and chemical stability (after 1000 ℃ calcination does not melt at any acid and alkali) , the refractive index is high (2.55 to 2.70), as well as a strong whiteness, color strength (1150 to 1650), hiding (40 ~ 50g / m2), temperature resistance, anti-chalking and other characteristics, is called "paint the king. "