(1) Qhov ntsuas kub ntawm txhua ntu ntawm lub thoob ntawm cov khoom siv ntawm cov ntawv yas nce zuj zus los ntawm ntu pub mis mus rau qhov sib txuas ntawm lub thoob thiab cov molding tuag.
(2) Lub molding pwm kub yog me ntsis siab dua lub chim kub. Qhov kub siab dua yog tswj tau ntawm 5---10 degree . Qhov kub ntawm ob qho kawg ntawm pwm yog me ntsis siab dua qhov kub ntawm cov pwm, thiab qhov kub siab dua yog tswj ntawm 5-10 degree .
(3) Nyob rau hauv daim ntawv daim ntawv, lub Upper yob nto ntawm nruab nrab yob ntawm peb yob yuav tsum nyob rau tib theem raws li lub dav hlau qis ntawm lub puab di ncauj; qhov kawg ntawm daim di ncauj yog sib npaug rau cov kab nruab nrab ntawm qhov nruab nrab yob, nrog qhov deb ntawm 50 ~ 100mm.
(4) Qhov sib txawv ntawm daim di ncauj tuag yuav tsum me ntsis me dua los yog sib npaug ntawm cov khoom tuab ntawm cov khoom phaj, thiab qhov sib txawv ntawm daim di ncauj tuag yuav tsum me ntsis me dua qhov sib txawv ntawm daim di ncauj tuag ntawm ob sab.
(5) Nco ntsoov tias qhov roughness R ntawm peb-yob ua hauj lwm nto yuav tsum tsis txhob siab tshaj 0.2pm. Thaum ntxuav lub yob nto, nws tsis raug tso cai los khawb lub yob nto nrog ib tug tawv steel riam, thiab ib rab riam tooj liab yuav tsum tau siv los ntxuav cov khoom seem ntawm cov yob nto.
