Die casting production-ah chuan mold chhiatna chi khat ber chu cracking leh cracking a ni. stress hi mold chhiatna thlentu ber a ni. thermal, mechanical, chemical, leh operational shocks te hi stress source an ni a, mechanical leh thermal stresses te pawh a tel a, chungte chu: by:
In mold siamna kawngah .
1) Quality lama harsatna awm thei rough forging .
Mold thenkhat chuan crack an siam chhuak a, chu chu za tlemte a siam chhuah a nih chauhvin a ni a, crack te chu a lo thang chak hle. chu chu forging laiin a pawn lam dimension chauh a awm theih a, chu chu dendrites, inclusions, shrinkage cavities, leh steel-a bubble te ang chi defect loose te chu processing method zawh a, streamline siam turin a inzawm a, a sei a, he streamline hi a ni a, he streamline hi a tawp ber atan chuan brief, a tawp ber atan brief, a tawp ber atan brief, a tawp ber atan brief, a tawp berah chuan brief, a tawp ber atan brief, a tawp ber atan brief, a tawp ber atan brief, a tawp ber atan brief, bribried A hman laiin ruh tliak, leh hlawhchhamna tendency hian nghawng lian tak a nei.
2) Final machining-a stress lo chhuak, turning, milling, planing, etc. ang chi, intermediate annealing. hmanga tihbo theih tur tihtlem.
3) Grinding stress hi steel hardening laiin a awm a, grinding laiin friction heat a lo chhuak a, grinding lai chuan layer leh decarburization layer a lo chhuak a, thermal fatigue strength a tlahniam a, thermal cracking leh early cracking te chu awlsam takin a lo awm a ni. H13 steel fine grinding hnuah {{3}℃C-ah a lum thei a, a thickness chu 25 mm a ni a, chu chu 25 mm a ni.
4) EDM hian stress a siam chhuak. Mold chunglam chuan electrode element leh dielectric element tam tak awmna white bright layer a siam chhuak a, chu chu a khauh a, a brittle. He layer ngei pawh hian crack leh stress a nei bawk. EDM hian high frequency a hmang tur a ni a, chu chuan white layer{/4}} chu polishing leh tempered a nih chuan a paih chhuah a ngai a ni{{5} the tempering at the tempering tertiary tempering at the tempering at the tempering
Mold processing laiin 2. .
Heat treatment dik lo chuan mold chu a ti chhe ang a, a bik takin a hun hmain a scrapped ang., quenching leh tempering chauh, quenching a awm lo ang, leh surface nitriding a awm ang a, surface cracking leh cracking a awm ang a, die casting sang tam tak a awm ang.
Steel quench a nih huna stress lo chhuak chu cooling process chhunga thermal stress superposition atanga lo chhuak a ni a, phase change lai a structural stress awm dan. quenching stress hi deformation leh cracking thlentu a ni a, solid te chu stress awm lohna turin tempered a ngai a ni.
