Yuav ua li cas xaiv cov txheej txheem rau hmoov metallurgy qhov chaw?

Yuav ua li cas xaiv cov txheej txheem rau hmoov metallurgy qhov chaw?

Peb paub tias feem ntau muaj ob txoj hauv kev rau kev tsim cov hmoov metallurgy qhov chaw: txhaj tshuaj molding thiab compression molding. Feem ntau, peb yuav ua li cas xaiv cov txheej txheem rau kev tsim cov hmoov metallurgy qhov chaw. Qhov tseeb, nws yooj yim heev. Cia peb qhia luv luv hauv qab no:

Kev txhaj tshuaj molding ua ntej yuav tsum sib xyaw cov hmoov sib xyaw nrog cov organic binder, granulating, thiab tom qab ntawd txhaj rau hauv cov pwm kab noj hniav kom ruaj khov hauv qab cua sov thiab plasticization (~ 150 degree) siv lub tshuab txhaj tshuaj molding. Tom qab ntawd, lub binder nyob rau hauv lub tsim billet yog tshem tawm los ntawm cov tshuaj los yog thermal decomposition txoj kev, thiab thaum kawg, cov khoom kawg yog tau los ntawm sintering thiab densification. Feem ntau, kev txhaj tshuaj molding siv cov hmoov zoo heev, ua ke nrog ntau cov thermoplastic binder txhaj rau hauv pwm molding.

Powder compression forming, tseem hu ua hmoov molding, yog ib txoj kev ua thaum ntxov siv hauv cov hmoov metallurgy ntau lawm. Nyob rau hauv lub lig 18th thiab thaum ntxov 19th centuries, Russia thiab teb chaws Aas Kiv siv steel pwm los nias thiab manufacture platinum khoom. Tom qab ntawd, cov hmoov sib sau ua ke maj mam txhim kho thiab tau siv los nias ntau yam roj bearing, hmoov metallurgy antifriction khoom, hmoov metallurgy tshuab structural qhov chaw, thiab lwm yam pressed blanks. Txij li thaum xyoo 1930s, hmoov nias thiab tsim tau dhau los ua kev txhim kho ntau dua, nrog rau kev txhim kho txuas ntxiv ntawm cov xovxwm thiab pwm tsim, muaj peev xwm nias qhov zoo li qub nrog qib siab ntawm kev siv tshuab thiab automation. Nyob rau hauv txoj kev thov tiag tiag, nias yog dav siv, xws li peb txias kaw steel pwm nias, txias isostatic nias, Kub isostatic nias, thiab sov so.