Keeb kwm luv luv ntawm Hydraulic Xovxwm

Xyoo 1795, J. Bramer los ntawm Askiv tau siv lub hauv paus ntsiab lus Pascal los tsim cov xovxwm hydraulic, uas yog siv rau ntim, rho tawm cov roj zaub, thiab lwm yam. Los ntawm nruab nrab-19 xyoo pua, Tebchaws Askiv tau pib siv hydraulic presses rau forging, thiab hydraulic presses maj mam hloov ultra loj rauj. Thaum kawg ntawm lub xyoo pua 19th, Tebchaws Meskas tau tsim 126000 kilonewton dawb forging hydraulic presses. Tom qab ntawd, ntau tshaj 20 free forging hydraulic presses nrog lub peev xwm ntawm 100000 kilonewtons tau tsim thoob ntiaj teb, suav nrog 2 ua hauv Suav teb (saib cov duab xim). Nrog kev tshwm sim thiab kev txhim kho ntawm cov twj siv hluav taws xob siab, forging hydraulic presses tseem tab tom txhim kho rau me me tonnage. Tom qab xyoo 1950, me me ceev forging hydraulic presses tuaj yeem ua haujlwm sib npaug rau 30-50 kilonewton forging rauj. Nyob rau xyoo 1940, lub teb chaws Yelemees tau tsim ib qho loj forging hydraulic xovxwm nrog lub peev xwm ntawm 180000 kilonewtons. Txij thaum ntawd los, lub ntiaj teb tau tsim 18 forging hydraulic presses nrog lub peev xwm ntawm ntau tshaj 180000 kilonewtons, uas ib tug ua nyob rau hauv Tuam Tshoj yog 300000 kilonewtons.