FLASHING FINNING
WATER / POWDER RATIO
WITHIN RECOMMEND
RANGE (38 – 40/100)
MECHANICAL – MIX 3 - 4 MIN.
TOO HOT
FLASK TEMPERATURES
ENOUGH AFTER SET
1 – 2 HOURS BEFORE
STARTING BURNOUT
AVAILABLE WORKING TIME
THAN 8 – 9 MIN.
WATER / POWDER RATIO
TEMPERATURE RISE
IMPROPER STORAGE
WITHIN RECOMMEND
STORE IN COOL, DRY AREA
AIR BUBBLES
MECHANICAL MIXING
WATER / POWDER RATIO
2.5 - 3 MINUTES
DO NOT PROCESS PAST
9 MINUTES
NON-FILLS
TOO COLD
TEMP. HIGHER
NON-FILLS, Cont.
COMPLETE FILLS ARE ACHIEVED
(Casting with Centrifuge)
INCREASE G-FORCE
/ LEAK IN VACUUM SYSTEM
REPAIR LEAK IN SYSTEM
CARBON PRESENT IN MOLD CAVITY
UNTIL MOLD CAVITY IS WHITE
SHRINKAGE POROSITY
POUR BUTTON
BOTTOM ROW AND BUTTON
OF DESIGN
OF DESIGN. USE LARGER GATE
GAS POROSITY
MIX NEW METAL WITH REMELT
INVESTMENT RESIDUE STICKS TO CASTINGS
CASTING INCLUSIONS
METAL OXIDES
REFINE METAL
CASTING INCLUSIONS, Cont.
MODIFY DESIGN
ROUGH CASTING SURFACE
TO MIX
FOR MIXING.
REMAKE RUBBER MOLD
TALC MOLD RELEASE
SILICONE, OR TALC USED
LESS THAN ONE HOUR
ENOUGH BEFORE BURNOUT
OF 1- 2 HOURS
DARK, OXIDISED CASTINGS
EXCEEDED
MANY TIMES
FOR CASTING