Lost Mold Casting Process Runner Design Principles .
Pouring laiin type cavity gas backinjection awm loh nan transverse pouring channel hian gas chamber tih theihna tur hmun a nei tur a ni a, transverse pouring channel-a cross-sectional area pawh a lian zawka design tur a ni.
Design principle of inner pouring: A zau zawng leh a thuk tawi. Inner pouring gate hnathawh chu type cavity chhungah metal liquid inject a ni.
Die casting bo tawh design hian link pali a ngaihven tur a ni:
1) Inner pouring mouth-a cutting position chu a dik tur a ni;
2) Inner pouring mouth-a heat loss tlem zawk;
3) Inner pouring gate-a cutting direction chu negative pressure field nen a inmil tur a ni;
4) Inner channel cross-sectional area chu a block theih loh. Chuvangin inner pouring way mamawhna chu: zau zawng leh thickness tawi.
Traditional sand cast liquid metal filling cavity hian turbulence awm lovin smooth filling a thleng thei a ni. A lan dan hi a tam zawk chu flat (horizontal classification) a nih avangin, rise distance a sang lo va, bottom note inkar temperature danglamna pawh a lian lo.
Die casting bo chu traditional sand casting nen a danglam vek. Cavity chu foam-in a luah a, inner gate design-ah chuan foam die objective existence chu ngaihtuah a ngai a ni. Foam mode gasification characteristics-in liquid metal filling-a nghawng a neih dan zirchian laiin, liquid metal filling-in foam mold gasification bo chungchanga nghawng a neih dan zir chian a ngai bawk —— hengte hi process condition bik pahnih, binding together-a then theih loh a ni. Foam mold-a endothermal decomposition hian liquid metal-in a phurh lumna leh temperature tlemte inthlak danglamna a nghawng ang a, liquid metal filling kalpui danah flow form a nghawng ang a, chutah chuan thermal field distribution leh solidification process a nghawng ang. Chuvangin, liquid metal filling type flow field leh thermal field dik taka sawi lawk leh shrinkage, shrinkage leh cold separation-a defect awm lohna tur leh tihbo theihna tur key a ni.
Liquid metal filling kalpui danah hian temperature leh heat hloh leh hman hian foam die awm dan, speed leh bo dan a nghawng nghal vek a ni. Chuvangin, porosity, carbon precipitation leh carbon enhancement chhiatna ven leh tihbo nan foam mold-a bo ziarang dik taka hriatthiam theihna tur leh gas mold bo dan tur chu tha taka kaihruaitu leh tihfel theihna tur key a ni a, chutah chuan pores, carbon precipitation leh carbon enhancement avanga gasification process avanga carbon enhancement te pawh a tel a ni.
