Barrel rifling tau tsim nyob rau hauv Augsburg, Germany xyoo 1498 … rab phom siv cov hmoov dub tau teeb meem nrog phom phom vim yog cov fouling sab laug los ntawm cov hmoov combustion.
Leej twg invented khawm phom?
History. Gaspard Kollner, tus neeg tua phom xyoo pua 15th hauv Vienna, tau xav los ntawm ntau tus neeg tsim phom.
Thaum twg phom phom tau tsim?
phom phom hnub rov qab mus rau tsawg kawg yog xyoo pua 15. Raws li qee qhov ntxov tshaj plaws tau ncaj es tsis yog zawv zawg, nws xav tias lub hom phiaj thawj zaug yuav tau txais cov hmoov seem, lossis fouling, uas yog teeb meem nrog phom thaum ntxov.
Vim li cas rab phom tau ntxiv rau ntau rab phom?
Rifling imparts tig mus rau lub mos txwv raws tus tom kawg axis lengthwise. Qhov no pab cov mos txwv tswj kom ruaj khov trajectory thaum nws tawm ntawm rab phom thiab txhim kho qhov ntau thiab qhov tseeb ntawm rab phom. Qhov ntawd yog cov lus teb luv luv.
phom phom yog dab tsi?
Rifling marks yog tshwm sim los ntawm kauv zawj nyob rau hauv lub phom phomCov spirals no ua rau cov mos txwv tig, ua kom muaj kev ruaj khov dua. Txhua hom phom (piv txwv li a. … 45) yog tsim los nrog cov qauv phom sib txawv, tig mus rau sab xis lossis sab laug, ntawm tus nqi sib tw.
