Production, which carries powder metallurgy, is possible only on specialized equipment.Their range of products can be divided into structural, frictional and special purpose.The latter is made of materials with special properties.Specialty products can not be made by alternative methods.
Powder metallurgy involves the production of metal powders.Such details are surprisingly accurate and does not require further processing.
However, the technology of production does not apply to complex.It is based on the old method of making pottery, the difference is only in the raw materials used.Because this method is economical and simple, it rapidly rose to one step in competition with forging, casting, stamping, and other methods of manufacturing metal parts.
Along with the fact that production is constantly being improved and developed, develop new technologies and materials, and the growing range of products, which include products Powder Metallurgy.
If the plant receives an order for the production of a new part, it must develop a drawing of future products based on the drawings of the customer, drawing equipment and a press tool, the accompanying documentation.If necessary, the same plant performs research and experimental features that provide the initial development and testing of a new product.Also it made Options and press tool.
process of manufacturing parts
powders are different.It should be noted that this species is steel powder is not very hard.Certain properties are imparted to the powders according to the further use.The process itself takes place in a special apparatus or a ball mill, in which pieces of metal shavings, scraps are crushed, and the force caused by the airflows these pieces fray.Metals which are fusible, sprayed in liquid form, which is carried out by means of compressed air that directs the spatter on circling drive.Frozen metal droplets are broken down into even smaller particles.As a result, powders obtained in the electrolytic cell or by chemical reactions.
powder is then poured into a mold of steel and it is exposed to high pressure.Its particles are interconnected, and it turns out the finished part.Further, the sintering is carried out.The furnace is heated to high temperature resulting elements.The particles seem to merge and form a sufficiently dense and smooth.Thus, the product is considered to be fully prepared.Sometimes, the two processes are joined together, it saves time.In this case, the powder is heated to the desired temperature and is pressed into a current corresponding shape.
Scope products
Powder metallurgy provides ample opportunity for the production of parts for various makes of cars.This method produced:
- transmission parts and steering;
- locking hardware components;
- spools, rotors, pump housings;
- rotors for electric motors;
- bushings, bearings, bearings;
- sprockets, gears, flanges, and much more.
In addition, the hardness of the powder allows to produce parts of these cutting tools, heat resistance allows their use in the brake system of the aircraft, agricultural equipment and vehicles.To get items corresponding to different characteristics, it is sufficient to mix the powders of several metals.These parts are used in rocket engines, gas turbines, nuclear reactors.
Powder metallurgy permits such metal compounds that can not be obtained by using furnaces.Its development is due to the fact that some metals can not be processed by standard methods.Currently metal powders are mixed even with analogues of plastic, glass and minerals.This method allows more versatile on the properties of the product.
