Tide type hi a tha zawk .

Wet type hian table dry sand type, dry sand type emaw sand type dang emaw hmanna atana thil tulte a tlin theih loh chuan.
Wet type hman dan ngaihtuah hian a hnuaia condition te hi hriat tur a ni:
(1) Casting a sang lutuk a, metal static pressure chuan wet type compressive strength a pelh chuan dry sand type emaw self-hard sand type emaw ngaihtuah tur a ni.
To specific analysis: Casting wall chu a te deuh a nih chuan, casting chu a sang hle nachungin, mahse rising sand, sticky sand, running fire tendency chu a te deuh thin. He khapna hi a remchan dan angin a relax thei bawk. A chhan chu leih chhuah a nih hma chuan, a casting hnuai lam a metal shell sang ber pawh a condensed tawh a ni. Chu bakah, high quality sodium bentonite sand emaw activated bentonite sand emaw hman a nih chuan a sand type wet pressure strength a sang zawk a, a lian zawk casting atan chuan zawi zawiin condition a siam thei bawk.
(2) Casting-ah hian casting position-a horizontal wall lian tak a awm chuan wet type chu sand clamp defects thlen awlsam a nih avangin sand type dang ngaihtuah a ngai a ni.
(3) Sand type modeling process rei tak emaw, pouring nghah rei tak emaw chu a hnim tur a ni lo. Entirnan, complex casting conditions, sand core tam tak, lower core time rei tak leh casting lian tham tak tak te hnuaiah chuan wet type chu rei lutuk a vawt ang a, a chunglam chakna a ti tlem ang a, sand flushing defects a thlen awlsam ang. Chuvangin, wet type chu a tlangpuiin ni khatah theh tur a ni. A tuk zingah i leih a ngai a nih chuan, tui hloh loh nan box hrui hring chunglam leh hnuai lam chanve chu siam tur a ni. A tuk lama i leih hmain box chu hawng la, a hnuai lam chu hawng la, chutah chuan box chu leih leh rawh. Sand chi dang tan chuan process rei zawk ngaihtuah tur a ni.
(4) Type-a iron lum tam zawk dah a nih chuan wet type chu pumpelh tur a ni. Wet type-a ling iron a awm chuan, iron lum chu a lum hmasa tur a ni a, a hun takah a chi chhungah dah tur a ni a, chutiang chuan iron lum leh condensing "tui tla" te chu pumpelh tur a ni a, leih chhuah hnuah air hole defect a awm thei bawk.
Wet type chu rintlak loh anga ngaih a nih chuan, table dry sand type, sand type chauh surface drying, casting leh wall thickness lian leh te a zirin, drying depth chu 15~18mm a ni. Wet type hian a thatna tam tak a nei a, mahse wet type aiin a performance a tha zawk a, pores, sand, sand, sand te tendency a ti tlem. a bik takin manual emaw machine ang maia siam medium leh lian tak tak atan hman a ni.
Casting lian tak tak tan chuan resin hi hard sand type, water glass sand type leh clay dry sand type atang hian hnawih theih a ni. Size dik tak, smooth casting chu resin hmangin kan hmu thei a, mahse a man erawh a sang hle.