Elements of the powder exercise design
    
　　(i) Powder process (liú chéng)
    Metal powder is a mixture of powder — cold-pressed — sintering — heating — exercise (mocking) — heat treatment (ch ⁇ l go) — machine-processed — finished products.
    The current state-of-the-art method allows one heating, combining the sintering (the process of converting powder material into a condensation) and the heating process into one heating. But some are justified by the fact that the sintering temperature and the build-up-heating-heating temperature are very different, or by the rules of the process, such as sintering-heating-heat-preventing. attention) Oxidizing () oxidation (b) Measures.
    
　　(ii) Design of powder exercise
    The powder smelting metal can get preforms of various complex shapes and then exercise to form parts, which is more sophisticated than others. precise (b) the superior aspects of the pressure process.Hard-noodle gear brakes.In order to achieve a particularly low rate of output rotation, this can be achieved by linking two gear-reducing machines. When this is used, the power of the configured power must depend on the speed-reducing machine ' s maximum output twist, rather than the power of the power of the machine to calculate the output-reverse of the speed-reducing machine. Thus, the key to the design of the powder exercise is the design of pre-forming hairs, with the following principles to be noted in the design:
    
　　(1) Prefabricated shapes ensure a three-way pressure pressure on the hair when it is shaped by exercise, in the form of a cuddle-crowded combination, to avoid a pull-on of the hair, and to the extent possible, the shape () maybe) Approaching the final exercise shape, which should be as smooth as possible to avoid the dead end of the movement.Planetary gear decelerator.(b) Power consumption is low, performance is high, and speed-reducing machines are above 95 per cent; 5. The selection of high-quality exercise steel materials, steel cast iron containers, high-frequency thermal processing of gear surfaces, and the precision process to ensure axle parallelity and positioning bearing requirements, the formation of an agglomerated speed-reducing machine equipped with a variety of types of electric power, combined with a combination of electron integration, fully assures the quality of product use.
    
　　(2) A two-way approach to pre-fabricated plume-pressure would be preferable in order to ensure that the density of each department is even, the amount of powder and the amount of pressure that it wants to control (A/AC.254/5/Add.1, para. control) Consistency, with the use of weight and volume automatic monitoring devices; the pressure process should be well conditioned for lubrication in order to be fully demodelled.

　　(3) The sintering process is an important link in increasing the combination and exerciseability of pre-fabricated wool, which enables alloys to be formed by sintering. alloy) Equilibrium (j ⁇ n yún) diffusion and reduction of the gas content of the work.
    
　　(4) Powder exercise density (in g/cm3 or kg/ m3 (j ⁇ n yún) should be even, and prefabricateds should avoid, to the extent possible, the presence of sharp angles, which are not possible in exercise because of their low density (j ⁇ n yún) maybe Improved, with the design of the exercise being designed with a straight angle or a round angle transition () transition) Upon formation, the density and performance are even.
       
　　(iii) The exercise process (groom chéng)
    
　　(1) The exercise equipment (shèbèi) is generally powdered by friction pressure, mechanical pressure or high-speed hammers.
    
　　(2) There is a general requirement for heating in a protective atmosphere, with the use of an electrical retardator or medium-frequency induction heater; in some cases, with glass-based lubricants (effects: can reduce or avoid friction) and aerobics (which can reduce or avoid friction). Oxygen The heating temperature is consistent with normal modelling.
    
　　(3) Modulars (name: industrial mother) need to be preheated to a higher temperature (temperature The exercise requires cooling in a protective atmosphere.
    
　　(iv) Post-treatment
    Powder exercise is used as a general model to repulse the fire. annealing), modulation or statute of limitations () Prescription Treatment (ch ⁇ l) and various surface treatments. Following a break in the fire, the individual high-demand exercise also requires a recompression (the process of converting powder into a condensation) or a heat-like static treatment, so that its alloy composition is sufficiently diffused and combined, and the exercise's mechanics, especially resilience, are enhanced.