Traditional powder metallurgy material iron base powder metallurgy iron-based powder metallurgy material is one of the most important material of powder metallurgy, in particular the rapid development of automobile industry of iron-based powder metallurgy industry plays a big role. As parts of the world by single car use of powder metallurgy parts statistics. According to the national bureau of statistics statistical data, China's auto production reached more than 400 units in 2003, 5.07 million vehicles in 2004, 5.75 million vehicles in 2005, by 2010, will break through 10 million. Visible cars with powder metallurgy parts have great market demand.

In addition, such as home appliances, agricultural machinery, electric tools, style recreational equipment is widely used in such fields as iron-base powder metallurgy parts. As conventional iron base powder metallurgy materials in the base of, the United States, Japan, Western Europe on average every car use of powder metallurgy parts usage statistics conventional iron base powder metallurgy materials basic use applications use general machinery of seeder with floating slave, 36 tooth of sprocket; Drill the slot forced two assembly for seeds of roller and closer and planetary gear components; The oil pump gear in tractor; Balance of the 195 diesel engine gear, gear, CAM shaft gear speed regulation, starting gear, crankshaft timing gear household appliances household refrigerator and air conditioner compressor in the connecting rod, piston, valve plate, inlet and exhaust valve catheter, upper and lower bearings, balance block, block, the blade; Such as washing machines, dryers used in the eccentric gear and rack and pinion; Pump in the washing machine impeller CAM used in electric tools, electric tools, bars, balance block, bearings, bearing, clutch, rotor, cylinder liner, side plate, blade and chuck clamping jaw; Hand electric drill, jigsaw, trimming machine, impact hammer instead of the straight gear, bevel gear, end face gear and small gear, helical gear, gear components, hydraulic ratchet other applications, such as all kinds of gear pump, rotor pump, axial plunger pump, vane pump, torque motor, etc. Many of the gears, interior and exterior rotor trochoid YueYa gear form; Axial piston pump cylinder, pressure plate, ball seat and the sliding boots; Vane pump valve plate, the CAM ring, etc. This purpose.

Sintered bronze oil bearing application field of application of auto parts, lighting generator, starter motor oil pump and water pump, windshield wiper, shields and window lifter, heater, air conditioner, electric antenna, electric seats regulator tray home appliances washing machine, dryer, refrigerator, washing machine, sewing machine, vacuum filter farm tractors, combine harvesters and lawn equipment, machine pick up cotton, lawnmower, wire saw cutting machine, chain saw consumer electronics juke box, automatic change disc, tape recorder client printer, computer, copier business machinery industrial equipment, packaging machines, electric fans, portable power tools, drilling machine, sawing machine, refractory metal and cemented carbides 21113 (1) refractory metal refractory metal (tungsten, molybdenum, tantalum, niobium, etc.) and its alloys, composite materials, with its high melting point, high hardness, high strength of unique physical and mechanical properties and is widely used in national defense, aerospace, electronic information, energy, chemical defense, metallurgy and nuclear industry and other fields.

Refractory metal tungsten earliest for the filament of an incandescent light bulb, gradually developed into cemented carbide, tungsten copper contact materials, W2Ni2Fe, W2Ni2Cu high density tungsten alloy, tungsten single crystal, tungsten wire, tungsten rod, tungsten bar, tungsten plate, formed a relatively complete system of tungsten products.

Molybdenum - used as a heating element, heat insulation screen, shuttle skin and guide plate, etc. In addition, has the very good high temperature properties of doped molybdenum (HTM), the recrystallization temperature up to 1800 ℃, even after recrystallization still has certain strength and plasticity. Tungsten, molybdenum as excellent high temperature furnace heating element, heat shield, smelting of rare earth with crucible and support has been widely used. Large tungsten, molybdenum tube and rod, molybdenum electrode, core material boat, etc has been successfully replaced platinum in glass and glass fiber industry has achieved great social and economic benefits. Tantalum and niobium, corrosion resistant, high temperature stability, oxidation film performance is good, good cold working performance, are widely used as a capacitor, alloy steel and carbide additive; Niobium alloy has a good ability to resist corrosion of blood, a stent can be made up.

(2) cemented carbide cemented carbide is hailed as \"the teeth of modern industry\".

With tungsten carbide carbide cobalt binder is the most typical category, first in 1926 by the German krupp company production. In addition, the steel bonded carbide also got rapid development, it first appeared in the early 1960 s in the United States, its organization characteristic is hard and wear resistant uniform distribution in the steel matrix, hard phase of steel alloy matrix gives good processing properties, while the hard phase make the alloy's hardness and wear resistance increased significantly. Steel bonded carbide, therefore, both hard phase and the advantages of steel, its comprehensive performance in common between carbide and steel.

Powder metallurgy technology, meanwhile, also is the main technical way of manufacturing high performance rare-earth permanent magnet materials, using the technology to manufacture high performance ndfeb, samarium cobalt at high temperature has won a wide application in two fields: the military and civilian; Our country has become one of the world's major producer of rare earth permanent magnet materials.

Energy use of powder metallurgy material energy refers to those who are in the process of development, may support the establishment of the new energy system, meet all kinds of new energy and energy-saving new technology required by the type of material. According to the purpose can be divided into new energy materials and energy saving materials and energy storage materials.

Hydrogen storage is the precondition of hydrogen energy application, since the 1990 s, the study of hydrogen storage material is very importance to many countries. For example, the U.S. department of energy in all the hydrogen research funding, about 50% is used for hydrogen storage technology. Japan has included the development of hydrogen storage materials and using the technology in 1993 ~ 2020 \"new sunshine plan\", including the hydrogen generating technology (efficient decomposition water technology, hydrogen storage, hydrogen fuel cell power generation technology) reached $3 billion at a time. At present has the practical value of the hydrogen storage alloy material mainly have rare earth series series, titanium iron series, magnesium, nickel, titanium, manganese series and so on.

Including a battery, secondary battery and fuel cell.

One battery is mainly zinc - manganese batteries, zinc, mercury, zinc, silver, zinc air battery and lithium battery. Secondary battery mainly include lead-acid battery, chrome - nickel battery, nickel - hydrogen battery and lithium ion battery, etc. Fuel cells are mainly hydrogen - oxygen fuel cell, hydrazine - air batteries, etc. Most of the material are made of powder metallurgy method. MH Π Ni batteries, for example, the anode material is nickel hydroxide, anode materials is the hydrogen storage alloy, nickel electrode substrate material is foam < 15 >.

As the shortage of natural resources such as oil, coal, nuclear energy has become an important clean energy, countries to develop, 10 years ago the world's nuclear power accounted for about 17% of the total generating capacity. However, now is nuclear power reactor thermal reactor or neutron reactor (fast reactor).

Boron neutron capture cross-section is high, no secondary contamination, low prices, is commonly used neutron absorption material. According to statistics, 83 published 1965 years ago, power reactor used in boron carbide as control materials of 43, about 50%; Established 1971 years ago in 282 of 282 power reactor using boron carbide, accounted for about 4316% of 16 or 17 > <.

New energy material is the core and basis of the development of new energy industry, its development direction is to develop green secondary batteries, hydrogen fuel cells, solar cells and nuclear energy, the key of materials. Current research hot spot and the technological frontier including high energy hydrogen storage material, polymer lithium ion battery materials, proton exchange membrane fuel cell materials, polycrystalline silicon thin film solar cell materials. In this series of materials research and development, preparation technology of powder metallurgy occupies very important position. Military interests are centered in the powder metallurgy steel preform forging into nearly forming weapon components and high performance gear. As early as 30 years ago, people used AISI4640 estimate of powder metallurgy parts forging 015 calibre M85 gun accelerator. Is more suitable in addition, a large number of weapons parts made by powder metallurgy method, especially in recent years the rapid development of technology, powder injection molding in small to medium sized parts of mass production complex shape has great advantages, some of which have been used in aviation, weapons parts manufacturing. The development of this technology will greatly broaden the powder metallurgy in military application in the field of high technology.