不銹鋼封頭的熱沖壓成型工藝過程說明
在封(feng)(feng)頭(tou)(tou)沖(chong)(chong)壓(ya)成(cheng)型(xing)(xing)時(shi)，為了降低(di)坯料與模(mo)具間(jian)的(de)摩擦(ca)力(li)(li)(li)，沖(chong)(chong)壓(ya)成(cheng)型(xing)(xing)時(shi)大都在下模(mo)的(de)表(biao)面涂(tu)以(yi)潤(run)滑(hua)劑(ji)。不銹鋼(gang)封(feng)(feng)頭(tou)(tou)沖(chong)(chong)壓(ya)成(cheng)型(xing)(xing)，一(yi)般使(shi)用的(de)潤(run)滑(hua)劑(ji)為55%石墨＋45%機(ji)油。封(feng)(feng)頭(tou)(tou)沖(chong)(chong)壓(ya)設(she)備及成(cheng)型(xing)(xing)過程見圖4-30. 壓(ya)力(li)(li)(li)機(ji)噸(dun)(dun)位的(de)選(xuan)擇：毛坯厚度8=30~40mm,壓(ya)力(li)(li)(li)機(ji)噸(dun)(dun)位應≤400噸(dun)(dun)，毛...
