Kupanga zakufa kumayenera kudalira nkhonya (atolankhani) kuti ipatse mphamvu, kukula kwakufa kosiyanasiyana, mtundu wamapangidwe ayenera kusankha nkhonya zosiyana kuti zigwirizane. Kusankha nkhonya koyenera kumatha kuchepetsa mtengo ndikupulumutsa zinthu.
Muyeso waukulu wa nkhonya yosankha kufa imayesedwa ndi tonnage, yomwe nthawi zambiri imapezeka ndi kuchuluka kwa mphamvu zopanda kanthu, kupanga mphamvu, kukakamiza ndi kufunkha mphamvu. Chachikulu ndi blanking mphamvu.
Mphamvu yosalemba sikukhazikika, ndipo kusintha kwake pakupondaponda ndi motere: nkhonya ikayamba kulumikizana ndi chinthu chomwe chimapondaponda, gulu losowekera limakhala likuwonjezeka nthawi zonse. Nkhonya ikalowa pafupifupi 1/3 ya makulidwe azinthuzo, mphamvu yopanda kanthu imafika pachimake. Kenako, chifukwa cha kuwonekera kwa zinthu zosweka, mphamvuyo icheperachepera. Chifukwa chake, kuwerengera kwa mphamvu yopanda kanthu ndikuwerengera mphamvu yayikulu yoperewera.

Kuwerengetsa za blanking mphamvu
Kuwerengetsa chilinganizo cha wamba blanking mphamvu: P = L * t * KS kg
Chidziwitso: P ndiye mphamvu yofunikira yopumira, mu kg
L ndilozungulira gawo lonse lazinthu zopanda kanthu, mu mm
T ndi makulidwe azinthu, mm
KS ndiye mphamvu yakumeta ubweya wazinthuzo, mu kg / mm 2
Mwambiri, pomwe chovala chosavalacho chimapangidwa ndi chitsulo chofatsa, kufunikira kwakutenga mphamvu zakuthupi ndi izi: KS = 35kg / mm2
Chitsanzo:
Tiyerekeze kuti makulidwe ake ndi t = 1.2, nkhaniyo ndi yofewa yachitsulo, ndipo chinthucho chimayenera kukhomerera mbale yaying'ono yokhala ndi 500mmx700mm. Kodi blanking mphamvu ndi chiyani?
Yankho: malinga ndi njira yowerengera: P = l × t × KS
L = (500 + 700) × 2 = 2400
T = 1.2, Ks = 35Kg / mm²
Chifukwa chake, P = 2400 × 1.2 × 35 = 100800kg = 100t
Posankha tonnage, 30% iyenera kuwonjezeredwa pasadakhale. Choncho, tonnage ndi pafupifupi matani 130.