Tide amyu hpe grau ra sharawng ai

Dai hka lim ai amyu gaw, table dry sand amyu, dry sand amyu (sh) kaga sand amyu hpe lang na matu ra ai lam ni hpe n lu galaw ai.
Wet amyu hpe jai lang ai lam hpe myit yu ai shaloi lawu na masa ni hpe sadi ra ai:
(1) Casting grai law nna, metal static pressure gaw wet amyu a compressive n-gun hta grau ai shaloi, dry sand amyu (sh) tinang hkum hpe sha ai sand amyu hpe myit yu ra ai.
Specific sawk sagawn na matu: casting a bunghku gaw n-gun n rawng ai rai yang, casting gaw grai galu ai raitim, rawt jat wa ai nhpu, n-gun ja ai nhprang rai ni a myit jasat gaw kaji ai. Ndai pat shingdang ai lam hpe hkrak hkra shim lum hkra galaw mai ai. Hpa majaw nga yang, hka n htum shi yang, tsaw dik htum ai nlung n-gun pyi, casting a lawu na ntsa kaw shinggrup da ai. Dai hta n-ga, n-gun ja ai sodium bentonite nhpu (sh) n-gun rawng ai bentonite hka n-gun hpe jai lang ai, shi a sand amyu hka lim ai n-gun grau law ai, grau kaba ai masa ni hpe n-gun n rawng hkra galaw na matu.
(2) Casting hta casting galaw ai shara hta horizontal bunghku kaba langai mi nga ai shaloi, wet amyu gaw sand clamp n kaja ai lam ni hpe byin shangun na matu loi ai, dai majaw kaga sand amyu ni hpe myit yu ra ai.
(3) Hka htung galu ai (sh) hka lim na hpe la nga ai aten galu ai sand amyu hpe n mai hka ai. Ga shadawn, complex casting a masa hta, sand core law law, npu na core time hte casting a galu kaba ai lam kaba ni gaw, hka lim ai amyu hpe grai na hkra katsi mat na re, dai gaw ntsa na n-gun hpe shayawm ya lu nna, sand flushing n kaja ai lam ni hpe mung shayawm ya lu ai. Dai majaw, wet amyu hpe general hku nna shani langai hta sha ru kau ra ai. Hpang shani hta ru bang ra ai rai yang, hka n htum mat hkra, n-gun n rawng ai sumpu a ntsa hte lawu daw hpe gawgap ra ai. Hpang shani n ru shi yang, box hpe hpaw nna, lawu na core hpe hpaw nna, box hpe ru bang u. Kaga sand amyu ni a matu grau galu ai process ni hpe myit yu ra ai.
(4) Hka katsi ai iron grau law ai hpe type hta bang da ai shaloi, hka lim ai hpe koi ra ai. Hka lim ai amyu hta ling iron nga yang, katsi ai magri hpe tau hkrau katsi shangun ra ai, aten dep amyu de bang ra ai, dai hku nna katsi ai magri hpe koi nna "hka n-gun" hpe condensing galaw na matu, hka lim ngut ai hpang nbung hka htung n kaja ai lam ni hpe byin shangun na matu.
Hka lim ai amyu hpe n kam sham mai ai ngu sawn la ai shaloi, table dry nhpu amyu, nhpu amyu sha, n-gup magap hte bunghku a n-gun daram kaba ai hte maren, htum mat ai sung ai gaw 15~18mm rai nga ai. Shi gaw hka lim ai amyu a akyu law law nga ai, raitim, bungli galaw ai lam gaw hka lim ai amyu hta grau kaja ai, pores, nhpu, nhpu, nhpu ni a myit jasat hpe shayawm ya ai. Madung hku nna manual (sh) jak hkrang bung ai n-gun hte kaba ai daw ni a matu lang ai.
Casting kaba ni a matu, n-gun ja ai nhpu amyu, hka htung sand amyu hte ga nhpu htum ai nhpu amyu kaw na resin hpe bang mai ai. Precise size, smooth casting hpe resin hte lu la mai ai, raitim manu grai law ai.