Question

With the help of a diagram, describe the (7) major features of a sand-casting mould?

Answer 1

Gate Vest Rider Pousing Cup Com Postition Line Baca Mold Core Runnes Schemare Set-up of Band Moldung lasting Poros I features & Sand Moulday i love. It is used for making hallow Corities in Casting Pousing Basuh lup: a small funnel shaped Cority at top of the mould usto which the moltes melal is poured passage through which the mettent metal persing basich reaches the mould Carity in metal into the mould many cases, it conted the flow of 4) Runner: The passage way in the posting plane Though which molter metal flow is regulated before they reach the mould earity 3 ) form The

which The flask 3) Gale! The actual eshy pount through molten metal enless the mould eority. 6 Rises! It is the reservois of moltes metal in The casting so that hot model can flow back into the moulat carity when there is a reduction & volume of metal due to soledification 7 Plook! A moulday flask is one which holds the sand mould ustact. Depending upon the position of on the mould structure. It is made up of word for temporang applications moe genesally & melal for long tom use. 8 Chaplet: Chaplet are used to support cores inside The mould cority to take care of its own • weight and ovescomes the metallestate forces & Chills Chills are metallic eject which are placed enade The mould meaty to increase The cooley role of easting to joonde uniform a desised cooly sate. Pottem. A pattern to o seplica of objed to be made by the easky process wow some modifications They may be of wood, plastic metal. The selection of patton depend usor size & shape of casting 10

piece sebesyo Sand Casting Process :- The quality of sand casting depends, on the quality & uniformity of green and matenal that is used for making mould The melken metal is feused through presang eup & it fits the modd evnity afts parry through dansand I gate. The cove refest to loose placed uside the mold conity to create enternal holes a ofen section the sides sooves as excess wellen melal That facilitades additonal Filling & meld conity to comparsake for Volunane shankage during solidification Sand Casting process has several advantage It employed for all types of tooky Cast is land & can be used to Cast very complex shopes it here some disadvantage also poses surface fashi types of metals. demensione accuracy poons