Questionnaire - diecasting
Q. 1 What are the check point of housing after diecasting? Ans.
Housing broken, housing bend or crack & housing non filling
Q. 2 If housing bend or crack during burr cutting then what is
reason? Ans. Housing may not kept proper in bottom jig, wastage
material not cleaned by air gun &
store in bottom jig from this reason housing will not sit proper
& we press the it will become bend or crack
Q. 3 Have you any idea for control the rejection if yes then
how? Ans. The quality of aluminium should be ok. During process of
every stage(like diecasitng
grinding/runner broken/burr cutting) time to time care should be
taken Q. 4 What is melting point of aluminium Ans. Between 6000 C
to 8000 C
Q. 5 Where do you keep the rejection material whether directly
melt or keep separately? Ans. Keep separately & next day melt
during processing
Q. 6 What is precaution taken by you during loading or unloading
the die? Ans. Following precautions should be taken
a) eye bolt should be fully tight in die b) hook of chain should
be fill insert in eye bold & tight with bolt & nut c)
nobody should stand or walk nearby the die when die goes up or
comes down d) Operate the remote of crane & keep away from die
yourself Q. 7 What is application of cooling tower Ans. Cooling
tower control the temperature of water & keep to cool oil tank
of machine, die
& also plunger Q. 8 If cooling not proper & machine
gives alarm then what will have to do? Ans. OFF the machine for
some time for cooling
Q. 9 What is the check point before operating the die casting
machine? Ans. All setting parameter should be as per chart, the
melting temperature of material should
be between 6000 C to 8000 C Q.10 If rejection increases due to
non filling then what is possible reason Ans. Possible reason are
following :
a) the % of oil increases which spray on die b) air gun not use
to die
Questionnaire - diecasting
c) less quantity aluminium poured in plunger sleeve Q.11 How do
you identify the Lmo & ALSI132 ? Ans. We keep the following
color for identification of material :
For LM-0 yellow color
ALSI 132 black color
Q.12 What is meaning of accepted label & rejection label
& why this label pasted on box Ans. Accepted label used only
for OK material which is ready for dispatch, but rejected label
use only for rejected material which are neither suitable for
production & not for dispatch This above label are pasted on
box for identification of material, model, quantity etc, &
what is condition of material
