Lost mold casting galaw ai lam hpe galaw ai ni a hkrang shapraw ai tara ni
Hka lim ai aten hta type cavity gas backinjection hpe pat shingdang na matu, transverse ru ai hka htung gaw gas rung hpe galaw na matu shara law law nga ra ai, transverse hka htung a cross-sectional area hpe grau kaba hkra galaw ra ai.
Kata de ru bang ai hkrang masa npawt tara: galu kaba ai hte kadun ai n-gun. Kata na hka htung chyinghka a bungli gaw, n-gun rawng ai hka htung kata de magri ntsin bang na matu re.
Hpa majaw nga yang, n nga mat wa ai die casting a hkrang gaw, link mali hpe myit maju jung ra ai:
1) N-gup n-gu hpe htum hkra htu ai shara gaw, hkam la mai ai lam rai ra ai;
2) Kata kata na n-gup hta n-gun n law ai;
3) Kata na hka htung chyinghka a cutting way gaw, n kaja ai n-gun atsam hte rau dingyang rai ra ai;
4) Kata lam a cross-sectional area hpe n mai pat kau ai. Dai majaw, kata de ru bang ra ai lam: galu kaba ai hte kadun ai n-gun.
Htunghking hku sand liquid metal hpring ai hka htung gaw, n-gun n rawng ai sha, n-gun n rawng ai hpe lu la mai ai. Hpa majaw nga yang, dai hkrang gaw law malawng gaw n-gun n rawng ai (horizontal classification), rawt jat ai lam n law ai, lawu na note lapran na nbung laru shai hkat ai lam gaw n kaba ai.
Dai mat mat wa ai die casting gaw htunghking nhprang wan htu ai hte tsep kawp shai ai. Dai hka htung hpe foam ni zing madu da nna, kata chyinghka a hkrang shapraw ai lam gaw foam si ai a yaw shada ai lam hpe myit yu ra ai. Dai majaw, n-gun n rawng ai nhprang wan n-gun hpe hka ja ai lam a n-gun atsam hpe sawk sagawn ai shaloi, foam mold gasification a n-gun n nga mat ai lam hta, hka n-gun hpe jahpring ai lam a akyu hpe mung sawk sagawn ra ai —— Ndai lam lahkawng gaw, langai hte langai matut mahkai nna garan n mai ai, laksan ladat lahkawng rai nga ai. Foam mold a endothermal decomposition gaw, n-gun n law ai nbung hte n-gun n-gun galai shai ai lam hpe hkra machyi shangun nna, liquid metal jahpring ai lam hta lwi ai hkrang hpe hkra machyi shangun nna, dai hpang thermal field garan ginhka ai lam hte ngang kang ai lam hpe hkra machyi shangun na re. Dai majaw, hka lim ai shara hte thermal field hpe hkrak hkrak tau hkrau tsun dan ai gaw, hka lim ai, n-gun yawm ai hte katsi ai hpe garan ginhka ai lam a n kaja ai lam ni hpe pat shingdang na hte yeng seng kau na matu ahkyak ai lam rai nga ai.
Liquid metal hpring ai lam hta nbung katsi ai hte katsi ai hpe sum mat ai hte katsi ai gaw foam die a hkrang, lawan ai hte n nga mat ai hpe hkrak hkra hkra machyi shangun ai. Dai majaw, hka lim ai lam, carbon marang hte carbon jat wa ai lam ni a n kaja ai lam ni hpe makawp maga na hte yeng seng kau na matu ahkyak ai lam rai nga ai, dai gaw foam mold a mat mat ai atsam ni hpe hkrak chye na nna, gas n-gun n nga mat ai lam hpe atsawm sha lam madun nna, tara shang masat da ai, dai hta, foam mold a gasification process a majaw byin pru wa ai pores, carbon marang hte carbon jat wa ai lam ni lawm ai.
