workshop green sand casting

8/20/2019 Workshop Green Sand Casting

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APPARATUS

Material Function

AluminiumMaterial that use to create the

product.

Green sand As core material to create themold.`

Parting agent used to make sure the mold

does not attach with the

pattern and easy to remove

the mold from the pattern.


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Equipment Function

Flask used to produced drag and

cope which putted the greensand inside of it.

Pattern used to pattern theshape of the product.

Furnace used to make the moltenmetal of aluminium.


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Crucible used to transfer the moltenmetal of aluminium after it

was produced from thefurnace and then poured into

the mold.

ands separator used to separate a bulk of sand to the finer particle

and Muller also known as sands mi!er that was used to produce

green sand which containedsilica sand" bentonite" coal

dust and water

and rammer machine used to compress and

compacted the green sand

into the mold. #n the

machine" it has air compressor to clean the

e!cesses green sand on the

machine and vibrator to

make green sand filled up the

space in the flask.


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Hand Tools Function

pure pin used to make a hole to flow

the molten metal of aluminium into the mold.

$eart trowel used to dig the green sand to

make hole and pulled out the

spure pin from the mold.

%rowel used to transfer the greensand into the lifter.


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&ifter used for removing the sand

particles from the mould

repaired the mold.

criber used to make air vent at the

upper of the cope.

Aluminium plate used to hold the flask and themold in order to make sure

the mold does not break


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INDUSTRIAL APPARATUS

Figure '.()* +ouble arm resin sand mi!er

Figure '.() showed that the machine mi!ed in the short time and the rotation of the double

arms was fle!ible. %he operation and maintenance were easy and simply besides improved

the ,uality of molding sand to get good economic efficiency. -t used plc control" running

stable and reliable.

Figure '.( * Automatic pouring machine F/01

Figure '.( showed that it transfer from hot molten metals and bringing the melt securely to

the mold.

Figure !"#$ $igh precision rubber compression molding machine

Figure '.(2 used for various re,uirements like rubber" 3akelite" melamine dishes and urea

product forming use.

E%PERIMENTAL PR&'EDURE


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(. -n order to ensure that green sand mold easy to split from pattern" parting agent was

put around the pattern in the drag part as shown in figure 4.(.

Figure 4.(* Parting agent stew process

5. %hen green sand was filled in the drag part. Green sand was filled until it fulfills the

drag part as shown in figure 4.5.

Figure 4.5* Green sand was filled in drag part

6. %hen" the green sand being compacted by using sand rammer. -t is being rammed for

five seconds in order to ensure green sand was compressed.'. 3eside" to ensure that green sand was compacted it also was compressed by a

compressor as shown in figure 4.6.


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Figure 4.6* Mold was compress by compressor

4. After it was compressed" the green sand mold will going through vibrating process toensure that the pattern and flask were easier to remove from green sand mold.

7. After the drag part were finished" the cope take place. prue was build by using sprue

pin in cope part as shown in figure 4.'.

Figure 4.'* prue pin was marked

). After that" green sand was fulfilled the cope part and it was compress by compressor

to ensure that green sand was really compacted.. %hen" green sand mold in cope part will going through vibrating process to ensure that

sprue and flask were easier to remove from green sand mold.2. 0e!t" air vent was build in the cope part to make sure there is air ventilation in the

mold to minimi8e the defect in casting. Air vent was build by using scriber as shown

in figure 4.4. 3esides" pouring cup99p was build by using trowel to make pouring

process more easier.


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Figure 4.4* Air vent was build by using scriber

(:. After that" flasks were removed from mold" cope and drag part were ;oining together as shown in figure 4.7.

Figure 4.7* Cope and drag part were ;oined together

((. 0e!t" the mold was compacted parting line with a green sand as shown in figure 4.) to

ensure that there is no leaking between cope and drag. 3esides" it also to make sure

that there is no molten metal flow out from the mold.


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Figure 4.)* Green sand was put at parting line

(5. %hen" aluminum metal was heated until it reaches melting temperature. After that"molten metal were pour into crucible as shown in figure 4. to easier the process of

pouring molten metal into the mold.

Figure 4. * Molten aluminum was poured into crucible

(6. %he mold was left around 5' hours in a room temperature for ensure that the

aluminum is fully solidified.

('. After that" the mold was broke and the product was cleaned.

(4. Finally" the product of casting process can be observed as shown in figure 4.2. All the

defects were known by observing the product.


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workshop green sand casting

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