不銹鋼封頭的熱沖壓成型工藝過程說明
在封(feng)頭沖(chong)壓(ya)成(cheng)(cheng)(cheng)型(xing)時,為了(le)降低坯(pi)(pi)料與模具間的摩擦力,沖(chong)壓(ya)成(cheng)(cheng)(cheng)型(xing)時大都在下模的表面涂以潤滑(hua)劑。不銹鋼(gang)封(feng)頭沖(chong)壓(ya)成(cheng)(cheng)(cheng)型(xing),一般使(shi)用的潤滑(hua)劑為55%石墨+45%機(ji)油。封(feng)頭沖(chong)壓(ya)設備及成(cheng)(cheng)(cheng)型(xing)過程見圖4-30. 壓(ya)力機(ji)噸(dun)位的選擇:毛坯(pi)(pi)厚度8=30~40mm,壓(ya)力機(ji)噸(dun)位應≤400噸(dun),毛...