Ho hlahisa hot-rolled seamless tube perforation ke mohato oa bohlokoa ka ho fetisisa oa deformation, morero oa eona ke ho roala tube e tiileng e kentsoeng ka har'a tube e se nang letho.Ho ea ka sebopeho le litšobotsi tsa deformation mokhoa oa ho phunya mochine oa ho phunya o ka aroloa ka mokhoa o tloaelehileng oa ho phunya: ho phunya oblique, ho phunya ho sutumetsa le ho phunyeletsa khatello, ho phunya le oblique e sebelisoang ka ho fetisisa, sebopeho sa meqolo ea mochine oa rotary e na le moqolo, foromo ea baktheria. cone) le disc ke mefuta e meraro ea ho phunya leloala rolling leloala meqolo bakeng sa ho sebelisoa tse nyenyane, ha diyuniti tse khōlō sebelisa libaktheria mofuta piercer meqolo.Disc punch ha e sebelisoe hangata.Ho sa tsotellehe sebopeho sa moqolo joang, e le ho etsa bonnete ba hore tube e loma le ho finyella ts'ebetso ea ho phunya e na le perforated khoune (moqolo o kenang ka har'a khoune), ho sila khoune ea leloala (moqolo o pharalletseng) le khoele e kolobisitsoeng (karolo e feteletseng ea khoune e kenang le khoune ea ho tsoa pakeng tsa) tlhamo.

Moqolo oa Piercer o sebelisa motsoako oa lirolara le sebopeho sa letsoho la rolara, ka bobeli ba tšitiso e tobileng kapa motsoako oa tšitiso hammoho le motsoako oa senotlolo.Kahoo, ha sekhechana sa moqolo, li-rollers li ka tsoela pele ho sebelisa hape, ho fokotsa litšenyehelo tsa lisebelisoa.Lisebelisoa tse nyane tsa "punch roller" khetho e eketsehileng ea 45 kapa 40Cr, e tingoe ebile e halefile.Lirolara tse kholo tsa li-punch tse ngata tse 42CrMo, tse timang ebile lia chesa.Baetsi ba thepa ea rolls hajoale ba sebelisa ho rarahana ho feta, bahlahisi ba bang ba sebelisa 45, 55 joalo-joalo ho etsa tšepe ea boleng bo holimo ea carbon.Baetsi ba bang ba sebelisa 50Mn, 65Mn, 70Mn, 70Mn2Mo, 60CrMnMo alloy cast kapa forged;Litlhoko tsa mefuta e thata ha li lumellane, 'me tse ling li hloka HB180-220, tse ling li hloka HB220-260.E le ho eketsa ho loma ha rolara e kholo ea perforated ka kakaretso ea ts'ebetso ea botebo ba 0.8 ~ 1.2mm letlooeng paterone ea khoune e kenang.

Bahlahisi ba phethahetseng ba malapeng le ba kantle ho naha ba khethang thepa le ho e sebelisa, ke nahana: khetho ea ho lahlela punch 50Mn, 60CrMnMo carbon steel le lisebelisoa tse ling tse loketseng, o na le matla a matle le ho hanyetsa, ea bobeli e sebelisoa ho mofuta o mong le o mong oa phala ea thepa. .Taolo ea boima ka HB200-240 e utloahala haholoanyane.