Massimo G
Guest
what type of injection is recommended on pa details with mirror polished matrix? I must absolutely avoid signs of flow (bladders, burns, streaks, etc...)
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TECNOMODEL
Guest
What do you mean, "What kind of injection"?
other thing, I deduce it is a particular aesthetic, given the mirror polishing.
a pa does not seem to me the best choice for a particular with those needs.
other thing, I deduce it is a particular aesthetic, given the mirror polishing.
a pa does not seem to me the best choice for a particular with those needs.
Massimo G
Guest
Let's talk about automotive details.... so yes, the piece is aesthetic.
for the type of injection I refer to the different types (film, tunnel, nail, direct, etc...... )
I needed to know if in these particular cases, a particular injection is recommended......made to avoid any problem of signs
for the type of injection I refer to the different types (film, tunnel, nail, direct, etc...... )
I needed to know if in these particular cases, a particular injection is recommended......made to avoid any problem of signs
TECNOMODEL
Guest
depends on the geometry of the piece, how the mold will be made, how many footprints, how many injection points, whether you use hot room or materozza etc,etc,etc.
with the few data you have listed it is impossible to give an answer.
with the few data you have listed it is impossible to give an answer.
Massimo G
Guest
mà.....son all points that can determine the type of mold but not the type of injection.....
hot room or cold compass you use............the injection is that...... .
and even the fingerprint number is not an important factor....
Well, I'm gonna need to say that I'm gonna do some tests.
Thank you very much
hot room or cold compass you use............the injection is that...... .
and even the fingerprint number is not an important factor....
Well, I'm gonna need to say that I'm gonna do some tests.
Thank you very much
TECNOMODEL
Guest
Absolutely not.
If I have a print mold I could choose a direct entry to the middle of the piece, for example.
if the mold is multi-print this I can only do it using a hot room with proper nozzles.
the cost of such a mold however is quite different from other types, so everything must be evaluated with the requirements of production.
Another very important thing to evaluate is the geometry of the piece in addition to customer requests.
often happens that the best point to inject is in a visible area and the customer would not accept the injection point in that area.
in brackets the phrase "hot chamber or cold compass using the injection is that" is a madornal error.
with hot room and relative nozzle torpedo I can manage to make an injection point of ø0.8, for example.
with a straightness a point like that, you'd forget it, it wouldn't even fit the material you need to fill the footprint, let alone compact it.
I repeat, from the few info you give it is impossible to give an answer as there is no unique rule.
It should be evaluated case by case and the appropriate choices must be made, which will be different from particular to particular.
If I have a print mold I could choose a direct entry to the middle of the piece, for example.
if the mold is multi-print this I can only do it using a hot room with proper nozzles.
the cost of such a mold however is quite different from other types, so everything must be evaluated with the requirements of production.
Another very important thing to evaluate is the geometry of the piece in addition to customer requests.
often happens that the best point to inject is in a visible area and the customer would not accept the injection point in that area.
in brackets the phrase "hot chamber or cold compass using the injection is that" is a madornal error.
with hot room and relative nozzle torpedo I can manage to make an injection point of ø0.8, for example.
with a straightness a point like that, you'd forget it, it wouldn't even fit the material you need to fill the footprint, let alone compact it.
I repeat, from the few info you give it is impossible to give an answer as there is no unique rule.
It should be evaluated case by case and the appropriate choices must be made, which will be different from particular to particular.
Meteor02
Guest
hi maximum pa you can print it with any type of injection, which will be chosen according to how the mold will be built. I have glossy molds with practically all types of injections mentioned, including submarine from 0.8 and all work more than well leaving the shiny parts without marks, to get this is more important the position of the injection and carefully calibrate the flow, not forgetting to insert the right gases in critical points. Many cads have a flow simulation module that helps a lot. the choice of the type of injection hardly affects the aestheticity of the details (as long as the flow is well sized) the removal of the matarozza instead leaves a sign, so if in visible position is preferable a system with hot channel
TECNOMODEL
Guest
I also agree, according to my experience, the choice of the type of entry should be made by evaluating the geometry of the piece.hi maximum pa you can print it with any type of injection, which will be chosen according to how the mold will be built. I have glossy molds with practically all types of injections mentioned, including submarine from 0.8 and all work more than well leaving the shiny parts without marks, to get this is more important the position of the injection and carefully calibrate the flow, not forgetting to insert the right gases in critical points. Many cads have a flow simulation module that helps a lot. the choice of the type of injection hardly affects the aestheticity of the details (as long as the flow is well sized) the removal of the matarozza instead leaves a sign, so if in visible position is preferable a system with hot channel
banal example, if I enter on a relatively large plane and injected against wall I would never choose a type of fan injection.
Otherwise, if I enter the small wall and inject in the direction of the long section of the piece I would opt for a fan or materozza injection with semicircular or trapezoidal point.