Cov txheej txheem molding tuaj yeem raug faib ua peb pawg, uas yog, theem molding txoj kev, ntuj molding txoj kev thiab sawv cov menyuam muaj pes tsawg leeg txoj kev.
1. Lub sij hawm tsim txoj kev: Phase forming method yog ib txoj kev tsim longitudinal uas muaj cov txheej txheem ntawm khub-pair-type rollers. Nws tuaj yeem raug cais raws li cov yam ntxwv ntawm cov kab rov tav kab rov tav thiab cov yam ntxwv ntawm txoj kab ntev ntev ntawm txoj hlua.
(1) Kev faib tawm raws li cov yam ntxwv ntawm kab rov tav molding: Nqa cov hlau Thaum lub sij hawm nruam molding txheej txheem, raws li txoj kev ntawm kab rov tav cross-section yas dabtsi yog khoov trajectory, nws muaj peev xwm muab faib ua ntug dabtsi yog khoov txoj kev khoov ntawm ntug steel ntug. Lub hauv paus nkhaus txoj kev tsim, lub voj voog bending molding txoj kev khoov ntawm tag nrho qhov dav ntawm txoj siv, thiab ob lub voj voos qhov-hom dabtsi yog khoov molding txoj kev.
(2) Kev faib tawm raws li cov yam ntxwv ntawm ntsug molding ntawm lub raj: Sib faib raws li daim ntawv faib ntawm cov kab hauv qab ntawm cov yeeb nkab sib sau, thiab kev tsim cov yeeb nkab welded kuj tuaj yeem muab faib ua plaub hom, uas yog lub roob sib sau. method, downhill forming method, theem kab hauv qab txoj kev, thiab ntug kab theem txoj kev. Lub stretching generated los ntawm sab sauv moulding txoj kev yog qhov siab tshaj plaws: lub ntsug stretching strain generated los ntawm downhill molding txoj kev yog tusyees faib nyob rau hauv cov kev taw qhia ntawm qhov dav ntawm lub raj xa dej, thiab ntug extension yog minimized.
(3) Kev nce qib ntawm cov txheej txheem molding: Tam sim no, hauv kev tsim cov kav hlau ncaj ncaj, xws li W anti-curved dabtsi yog khoov txoj kev (thawj ob peb ntawm cov neeg ua haujlwm raug cai siv W anti-curved roller), FF molding txoj kev ( sab pem hauv ntej ntawm kev tsim yog los ntawm 4 kev sib txuas los ntawm 4 kev sib xyaw ua ke Cov txheej txheem tsim ntau tshaj plaws xws li cov menyuam yaus tiaj tus thiab rau pawg chais) tau ua lub luag haujlwm zoo hauv kev txhim kho qhov zoo ntawm molding.
2. Ntuj molding txoj kev: Lub ntuj tsim txoj kev kuj hu ua cov txheej txheem rau cov menyuam txoj kev (CFE). Cov yam ntxwv ntawm txoj kev molding no yog hais tias nyob rau hauv tus txheej txheem ntawm kev tsim, cov yob pawg yog configured raws ntsug daim ntawv cog lus ntug ntawm lub billet los tswj lub ntug extension. Nyob rau tib lub sijhawm, cov pab pawg yob raug txwv los ntawm sab nraud
Extend the edge as a compressed deformation form to absorb, so that the forming process of the tanded steel is close to the forming method of natural bending shape. Therefore, it is a forming method that can prevent the edge extension and absorb marginal extension, which is suitable for the inhabitant medium -caliber thin wall tube (D>400 mm).
3. Tsim kom muaj cov txheej txheem ntawm cov menyuam muaj pes tsawg leeg: Nyob rau hauv txoj kev ntsug ntawm ib txheej ntawm cov menyuam, qhov deformation ntawm cov txheej txheem molding yog txwv. Nws yog ib txoj kev tsim uas tau sib xws nrog cov yam ntxwv ntawm theem molding thiab cov menyuam sib sau. Nws cov yam ntxwv yog:
(1) Cov yob ntawm cov yob ntawm lub tander steel tsim cov nyhuv stretching longitudinal yog me me, ua rau sab stretch nyob rau hauv lub xeev yam tsawg kawg nkaus.
(2) Cov pab pawg neeg cov menyuam tuaj yeem siv los tsim ntau yam tshwj xeeb ntawm cov kav dej tsis tas yuav hloov cov menyuam, uas yog qhov zoo sib xws.
(3) Cov menyuam pawg yog cov menyuam tsis muaj zog, thiab kev sib txhuam siv me me, yog li lub zog xav tau rau kev tsim yog me me.
