1. Kev kam rau siab
(1) Qhov tsis muaj cim qhov siab ntev yuav tsum ua raws li qhov xav tau ntawm GB1184-80.
(2) Qhov tso cai sib txawv ntawm qhov tsis muaj qhov ntev ntev yog ±0.5mm.
(3) Qhov kev kam rau siab ntawm qhov casting yog symmetrical rau qhov loj me me configuration ntawm qhov dawb paug casting.
2. Yuav tsum tau txiav workpieces
(1) Cov khoom yuav tsum raug kuaj xyuas thiab lees txais raws li tus txheej txheem, thiab tsuas yog tom qab dhau qhov kev tshuaj xyuas ntawm cov txheej txheem dhau los lawv tuaj yeem xa mus rau cov txheej txheem tom ntej.
(2) Cov khoom ua tiav tsis raug tso cai kom muaj burrs.
(3) Cov khoom tiav yuav tsum tsis txhob muab tso ncaj qha rau hauv av, thiab kev txhawb nqa thiab kev tiv thaiv yuav tsum tau ua. Lub machined nto tsis raug tso cai kom muaj xeb, pob, khawb thiab lwm yam tsis xws luag uas cuam tshuam rau kev ua haujlwm, lub neej lossis qhov tsos.
(4) Yuav tsum tsis txhob tev tawm tom qab dov rau ntawm qhov chaw ntawm dov tiav.
(5) Yuav tsum tsis muaj oxide nplai rau ntawm qhov chaw tom qab kev kho cua sov hauv cov txheej txheem kawg. Ua tiav mating nto thiab hniav nto yuav tsum tsis txhob annealed
(6) Qhov saum npoo ntawm cov xov ua tiav tsis raug tso cai kom muaj qhov tsis xws luag xws li daim tawv nqaij dub, pob, random buckles thiab burrs.