Akyi no mu ade titiriw-UP roll no ne sɛ ɛbɛboa adwuma roll no, a ebetumi atew adwuma nhoma mmobɔwee no ntwemu so na ama adwuma nhoma mmobɔwee no ayɛ den denam rolling piece no a wobɛka so. Akyi-UP roll no yɛ ɔfa a ɛho hia wɔ rolling mill no mu, a wɔde boa adwuma roll anaa intermediate roll no de siw adwuma roll no ano sɛ ɛrenkotow na anya mprɛte ne strip no output ne ne su so nkɛntɛnso. Su no su su a ɛwɔ akyi-UP roll no yɛ sorosoro den, hardness pa a ɛyɛ pɛ, deep hardening layer of roll nipadua, ahoɔden pa ne toughness a ɛwɔ roll kɔn ne nipadua ne nipadua mu. Back-UP rolls no su su ahorow no yɛ nea ɛko tia ɔbrɛ a ɛkorɔn, spalling ahoɔden pa ne akwanhyia a ɛyɛ den a ɛko tia.
Akyi-UP roll no yɛ ɔfa a ɛho hia wɔ rolling mill no mu, a wɔde boa adwuma roll anaa intermediate roll no de siw adwuma roll no ano sɛ ɛrenkotow na aka mprɛte ne strip no output ne ne su. Su no su su a ɛwɔ akyi-UP roll no yɛ sorosoro den, hardness pa a ɛyɛ pɛ, deep hardening layer of roll nipadua, ahoɔden pa ne toughness a ɛwɔ roll kɔn ne nipadua ne nipadua mu. Back-UP rolls no su su ahorow no yɛ nea ɛko tia ɔbrɛ a ɛkorɔn, spalling ahoɔden pa ne akwanhyia a ɛyɛ den a ɛko tia. Ɛnam sɛ awɔw ne ɔhyew rolling mill anya nkɔso a ɛkɔ ahoɔhare kɛse, kɛse ne pɛpɛɛpɛyɛ a ɛkorɔn nti, ahwehwɛde a ɛfa akyi-up rolls ho no nso rekɔ soro. Efi nnɛyi awɔw ne ɔhyew rolling mill akyi-Up rolls wɔ nneɛma, roll nipadua den, uniformity, bun a hardened layer ne residual stress, ɛfata kɛse sɛ wobɛpaw forged dade akyi-up rolls. Sɛ wode toto composite cast steel back-UP roll ho a, steel back-UP roll a wɔayɛ no atoro no wɔ nneɛma a ɛyɛ pɛ no su, ɛyɛ papa sɛ ɛbɛhyɛ no yiye ne anti-spalling. Large forged steel back-Up roll is a high value-Added product, esiane ne mfiridwuma ho ahwehwɛde a ɛkorɔn, adeyɛ a ɛyɛ den, nneɛma a wɔyɛ a ɛyɛ den, adeyɛ a ɛyɛ den, kyinhyia tenten ne nneɛma afoforo nti, nnwuma kakraa bi pɛ na ebetumi ayɛ, nea wɔyɛ no ntumi nni gua so ahwehwɛde ho dwuma, na ɛde nnɛyi awɔw ne ɔhyew tandem mill nnwuma a wɔde di dwuma wɔ dade a wɔde di dwuma kɛse akyi no aba import roll{17} so{17}.
