T16 Hot Runner Nozzles are for medium part applica- tions and are available with band heaters. In most cases one heater is required for operation. An installed spare may be installed if space allows. They are available in lengths from 75 to 375 (“J” dimension). Because the nozzles are threaded directly into the manifold pre-load in the cold condition is not required. Suitable for all materials and available with eight Synventive Controlled Ves- tige (CV) tip options includ- ing valve gates for zero gate vestige applications. T16-1 T16 Series Features J Ø8-16 Threaded Tips Thermocouple Heat Pipes Replaceable Heaters : s e r u t a e F m u m i x a m l e n n a h c w o l f m u m i x a m m m 6 1 ) n o i s n e m i d " J " ( h t p e d d l o m 5 7 3 - 5 7 e l p u o c o m r e h t d n a r e t a e h e f i l g n o l e l b a e c a l p e R s r e t a e h V 0 4 2 / W 0 0 6 r o W 0 0 5 s e l y t s p i t e g i t s e v d e l l o r t n o c 8 s p i t d e d a e r h t e l b a e c a l p e R y t i m r o f i n u e r u t a r e p m e t r o f s e p i p t a e h l a n r e t n I s r e l l i f h t i w e s o h t g n i d u l c n i s c i t s a l p l l a r o F a i d p i t 4 2 All Dimensions in mm
Transcript
T16 Hot Runner Nozzles arefor medium part applica-tions and are available withband heaters. In most casesone heater is required foroperation. An installed sparemay be installed if spaceallows. They are available inlengths from 75 to 375 (“J”dimension). Because thenozzles are threaded directlyinto the manifold pre-load inthe cold condition is notrequired.
Suitable for all materials andavailable with eightSynventive Controlled Ves-tige (CV) tip options includ-ing valve gates for zero gatevestige applications.
T16-1
T16 SeriesFeatures
J
Ø8-16
Threaded Tips
Thermocouple
Heat Pipes
ReplaceableHeaters
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elpuocomrehtdnaretaehefilgnolelbaecalpeR
sretaehV042/W006roW005
selytspitegitsevdellortnoc8
spitdedaerhtelbaecalpeR
ytimrofinuerutarepmetrofsepiptaehlanretnI
srellifhtiwesohtgnidulcniscitsalpllaroF
aidpit42
All Dimensions in mm
T16-2
T16 SeriesBand Heater
J
Ø8-16
18
48 (J 75 to 149.9)122 (J 150 to 375)
120
Ø46
Ø68
In most cases one heater isrequired for operation. If moldthickness allows a spare bandheater and thermocouple will beinstalled.
When the distance from themanifold center locator to the hotrunner nozzle center lineexceeds 650 the 46 diameterclearance hole must be increasedto 50 and the 68 diameter hole to72.
J Minimum = 75J Maximum = 375
Band Heater
T16-3
T16 SeriesOverview
Thermal GateNozzle
See page T16-5 toselect a tip that suitsyour application
CV10- Filled and unfilled materials- Open flow channel/higher flow- 1.5 to 5.2 orifice diameter- Patented seal- Easier mold geometryDimensional data on Pages T16-10, 11 & 12
CV11- Filled and unfilled materials- Cone point delivers more heat to gate- 1.0 to 3.5 orifice diameter- Patented seal- Reduced vestige- Easier mold geometryDimensional data on Pages T16-13, 14 & 15
CV21- Filled and unfilled materials- Cone point delivers more heat to the gate- 1.0 to 3.5 orifice diameter- Patented seal- Reduced vestige- No witness markDimensional data on Pages T16-19, 20 & 21
CV20- Filled and unfilled materials- Open flow channel/Higher flow- 1.5 to 5.2 orifice diameter- Patented seal- No witness mark- Easier color changeDimensional data on Pages T16-16, 17 & 18
T16-4
T16 SeriesOverview
Valve GateNozzle
See page T16-6 toselect a tip that suitsyour application
VG12- Filled and unfilled materials- “0” vestige- Tapered shut off- 3.9 orifice diameter- Patented seal- Easier mold geometryDimensional data on Pages T16-22 & 23
VG12S- Filled and unfilled materials- “0” vestige- Diametric shut off- Materials having glass fibers- 5.0 orifice diameter- Patented seal- Easier mold geometryDimensional data on Pages T16-24 & 25
VG23S- Filled and unfilled materials- “0” vestige- Diametric shut off- Materials having glass fibers- 5.0 orifice diameter- Patented seal- No witness markDimensional data on Pages T16-28 & 29
VG23- Filled and unfilled materials- “0” vestige- Tapered shut off- 3.9 orifice diameter- Patented seal- No witness markDimensional data on Pages T16-26 & 27
T16-5
T16 SeriesMaterial Compatibility
PE PP PEEK
PPS
PET
PBT
PPO
/PA
PA PPA
POM
PMM
A
ABS
ASA
SAN
PS PC/A
BS
PC PES
PSU
PEI
PPO
TPE
Add
itiv
es
Semi-crystalline Amorphous
A
B
C
D
Material
Tip Style
+ + - - - - - - - - + + + + + + + - - - + -
-++ ----- --+--- --++- -+-
-++ ++-+- --+-+- --++- -+-
-++ ----- --+--- --++- -+-
A
B
C
D
+ + - - - - - - - + - - - + ++ + + + + + +
------00 -++--++-+- - - + +
--00 - - - - -- + + + -- + + - +-- +
------++ -++++++++- - - + +
A
B
C
D
+ + - - - - - - - 0 - - - + -+ + + + + + +
------++ 0 +++-+++ -- -+--
--+---++ 0 +++--+- -- -+--
+-+ + ++ + + --- +0 - -+ + + - - + -
A
B
C
D
+ + - - - - - - - + - - - + +0 + + + + + +
------++ 0 00++-0 -+- ++--
--+ + - - - - -0- + 0 00 -+ + - - + +
--++ ---- 0+- 0 - +- -0 0 +-- +
The above table defines which tipstyles are best suited for a givenmaterial.
Note:The selection table is meantto be a guide for the initialselection of the tip style. It isbased on the more commongrades of material.Synventive will verify thecorrect tip selection as partof the quote/order process.
The above table defines which tipstyles are best suited for a givenmaterial.
Note:The selection table is meantto be a guide for the initialselection of the tip style. It isbased on the more commongrades of material.Synventive will verify thecorrect tip selection as partof the quote/order process.
Maximum flow rate of hot runnernozzles varies depending on themelt index of the material beingprocessed.
The flow rate of any hot runnernozzle is controlled by threefactors:
1) Flow bore size
2) Melt temperature, viscosity vs shear rate relationship.
3) The cavity wall thickness, flow length from the gate, mold temperature and required fill rate.
The last two factors can combineto change the maximum shotcapacity by a factor of 5 or more.Synventive uses computerizedflow analysis to assure thecorrect nozzle is chosen.
Example
Material: PE
Tip style: CV10
Maximum flow rate: 985 grams/second
Note:Values in the table do notinclude reinforced materialsor materials with fillers.
lairetaMelytSpiT
02VC/01VC -N(12VC/)SN(11VC)S )S(32GV/)S(21GV
SBA ces/mg584 ces/mg001 ces/mg012
CP ces/mg055 ces/mg001 ces/mg501
OPP ces/mg525 ces/mg001 ces/mg522
TBP ces/mg577 ces/mg051 ces/mg521
CP/TBP ces/mg023 ces/mg001 ces/mg052
SBA/CP ces/mg055 ces/mg001 ces/mg052
SP ces/mg525 ces/mg001 ces/mg522
PP ces/mg0001 ces/mg002 ces/mg524
AP ces/mg5201 ces/mg002 ces/mg004
MOP ces/mg043 ces/mg05 ces/mg041
EP ces/mg589 ces/mg002 ces/mg004
cilyrcA ces/mg575 ces/mg001 ces/mg002
CVP ces/mg043 ces/mg05 ces/mg041
RPT - ces/mg001 ces/mg522
T16-8
T16 SeriesOrifice Guidelines
This table lists the normal gateorifice required to fill an averagecavity of the listed wall thicknessand surface area.
The orifice diameter is based onthe flow and freeze characteris-tics of each type of plastic at itsnormal processing conditions. It isnot dependent on whether thecavity is fed by a hot or coldrunner.
Some of the listed wall thicknessand surface area combinations arenot applicable to all plasticsbecause of the flow length to wallratios of each material. Consultplastic supplier’s processingrecommendations.
Due to the gate limitations of eachhot runner nozzle, the actual gatemay be slightly smaller or largerthan the tabulated orifice.
Material FactorsUse tabulated orifice for PE, PP, PS,SAN and PUR.
Use tabulated orifice x 1.15 for POM,PC, PPO and ABS.
Use tabulated orifice x 1.30 for Acrylic,PA, PET, and PBT
Use tabulated orifice x 1.50 for PVC.
For non-reinforced PA, PET and PBT theminimum orifice diameter should be4.0. For reinforced PA, PET and PBTthe minimum orifice diameter shouldbe 4.0.
Part Area is total outside area and notthe projected area of the part.
T16 manifold systems do notrequire preload because they arethreaded directly into the mani-fold.The systems typically have aclearance between the thrust padsand mold plates in the cold condi-tion. As the manifolds heats andexpands the thrust pads contactthe plates.
The thrust pads are made of a lowconductivity material and should notbe changed or replaced.
Excessive contact with the mold willcause heat sinks and affect thesystem performance. Contact withthe mold must be limited tospecified areas.
T = Rail height - 18- 80 (manifold)
Minimum T = 10
Minimum rail height = 104 .
Threaded nozzles line up with thegate locations in the mold in thecold condition. As the manifoldheats and expands the nozzles flex.The distance from the centerlocator (RD) determines the amountof nozzle flex. The table to the rightdefines the maximum allowabledistance from the nozzle to thecenter locator.
elbairaV noitpircseD
T pagriapoT
J htpeddloM
PCT etalppmalcpoT
T16 Maximun Radial Distance From Nozzle Centerline to Center Locator
"RD"
150
200
250
300
350
400
450
500
550
0
100
200
300
400
500
600
84 97 109
122
133
143
153
162
170
Nozzle
J Length
Dis
tanc
e Fr
om L
ocat
or
RD M
axim
um
T16-10
T16 SeriesManifold Nozzle
15.9 6 Contact
J
18
Ø1.5-5.2
H6Ø24
Ref9.7
120°
30
1
Ø46
Filled and unfilled materials.
Easy orifice size changes bystraight reaming
Open flow bore
Heat pipes for isothermaloperation.
The front face of the tip must bein contact with plastic.
Cooling is required in the gatearea.
T16 CV10
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)gnol15(dnaB 051 573 2 )hcae(V042/W006
DR niMJ DR niMJ051 48 004 341
002 79 054 351
052 901 005 261
003 221 055 071
053 331 006 971
RD is the radial distance from themanifold center locator to themanifold nozzle center line.
T16-11
T16 SeriesCV10 Recess
Recessh
contact
D = 13 + 3.5hD
h Max = 32 Land
Ø13
30
Conical Recess
4 Min
Recessed gates are used to reducevestige height above the partsurface or keep the vestige belowthe part surface.
For most materials CV10 vestigeheight is equal to 2.0 + orifice/2. Ifthe vestige height relative to thepossible gate recess depth (h) is toogreat, use of a CV11 tip is recom-mended.
orifice2
orifice2
Orifice
2.0 +
Values in tables are for materialsnot having glass fibers. ConsultSynventive for vestige heightwhen using glass fillers.
Recessh
contact
D = 2 h(50-h)
Spherical Recess
D
R25
h Max = 32 Land
4 Min
sseceRlacinoC
h D
0.1 5.61
5.1 2.81
0.2 0.02
5.2 8.12
0.3 5.32
sseceRlacirehpS
h D
0.1 0.41
5.1 1.71
0.2 6.91
5.2 8.12
0.3 8.32
T16-12
T16 SeriesCV10 Angled Mold Contour
Angled Mold Contour
6°; K= 0
E = 12TAN
L = 2 - TANOrifice Dia.2
E = K + 12TAN
L = 2 + K - TANOrifice Dia.2
6° 26°; K= 4.2TAN + -2
K
contact
2 Land
L
Orifice Dia.L = 2 + K - TAN2
E = K + 12TAN
E4 Min
1.6 Min
6 Min
1.6COS 26°; K= 23TAN - 9.9
When gating onto an angled moldcontour the vestige height may beincreased depending on the angle.
K is the increase in vestige heightrequired to maintain 1.6 wall, 6 walland/or 4 minimum contact.
T16-13
T16 SeriesManifold Nozzle
15.9 6 Contact
J
18
H6Ø24
Ref9.7
120
30
1
0.08
2
0.13 Land
Ø1-3.5
45
Ø46
Filled and unfilled materials.
More heat in gate area for semi-crystalline materials
Heat pipes for isothermaloperation.
The front face of the tip must bein contact with plastic.
Cooling is required in the gatearea.
T16 CV11
RD is the radial distance from themanifold center locator to themanifold nozzle center line.
DR niMJ DR niMJ051 48 004 341
002 79 054 351
052 901 005 261
003 221 055 071
053 331 006 971
elytSretaeH niMJ xaMJ ytQretaeH /sttaWstloV
)gnol83(dnaB 57 9.941 1 V042/W005
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T16-14
T16 SeriesCV11 Recess
Recessh
contact4 Min
D = 13 + 3.5h
Conical Recess
D
h Max = 3Ø13
30
OrificeLand
0.130.08
2
Recessed gates are used to reducevestige height above the partsurface or keep the vestige belowthe part surface.
Values in tables are for materialsnot having glass fibers. ConsultSynventive for vestige heightwhen using glass fillers.
Recessh
contact4 Min
D = 2 h(50-h)
Spherical Recess
D R25
h Max = 3d
0.080.13
Land
45
d (flat)
Orifice
2
sseceRlacinoCecifirO h D
0.1 95.0 1.51
5.1 67.0 7.51
0.2 39.0 3.61
5.2 90.1 8.61
0.3 62.1 4.71
5.3 34.1 0.81
sseceRlacirehpSecifirO h d D
2.1-0.1 56.0 54.1 33.11
4.1-2.1 27.0 56.1 19.11
6.1-4.1 97.0 58.1 74.21
8.1-6.1 68.0 50.2 00.31
0.2-8.1 39.0 52.2 15.31
2.2-0.2 00.1 54.2 00.41
4.2-2.2 60.1 56.2 14.41
6.2-4.2 21.1 58.2 08.41
8.2-6.2 81.1 50.3 81.51
0.3-8.2 62.1 52.3 76.51
2.3-0.3 23.1 54.3 30.61
5.3-2.3 04.1 56.3 05.61
T16-15
T16 SeriesCV11 Angled Mold Contour
Angled Mold Contour
K
contact4 Min
1.6 Min
2
E
L
7° 27°; K= 4.2TAN + + Tan -2
L = 0.13 + K - TAN
E = K + 12TAN
L = 0.13
E = TAN
7°; K= TAN COS1.6
Orifice Dia.2
E = K + 12TAN
L = 0.13 + K - TANOrifice Dia.
27°; K= 23TAN - 9.9
2
Orifice Dia.2
24 + Orifice Dia.2
Orifice Dia. - 12
6 Min
When gating onto an angled moldcontour the vestige height may beincreased depending on the angle.
K is the increase in vestige heightrequired to maintain 0.13 land, 1.6wall, 6 wall and/or 4 minimumcontact.
T16-16
T16 SeriesManifold Nozzle
17.4
J
18
Ø1.5-5.2H6
Ø24
30
120
1
8.46
Ø46
4.5
2
R 0.8R 0.8
40
11.2Ref
Filled and unfilled materials.
Easy orifice size changes bystraight reaming .
No tip witness mark on part.
Open flow bore.
Heat pipes for isothermaloperation.
Cooling is required in the gatearea.
T16 CV20
RD is the radial distance from themanifold center locator to themanifold nozzle center line.
DR niMJ DR niMJ051 48 004 341
002 79 054 351
052 901 005 261
003 221 055 071
053 331 006 971
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T16-17
T16 SeriesCV20 Recess
30
RecesshD = 2 13 + 3.5h2 Land
Ø13
D
Conical Recess
h Max = 1.5
Recessed gates are used to reducevestige height above the partsurface or keep the vestige belowthe part surface.
For most materials CV10 vestigeheight is equal to 2.0 + orifice/2. Ifthe vestige height relative to thepossible gate recess depth (h) is toogreat, use of a CV11 tip is recom-mended.
orifice2
2.0 + orifice2
Orifice
Values in tables are for materialsnot having glass fibers. ConsultSynventive for vestige heightwhen using glass fillers.
RecesshD = 2 h(50-h)
Spherical Recess
D
R25
2 Landh Max = 1.5
sseceRlacinoC
h D
0.1 5.61
5.1 2.81
sseceRlacirehpS
h D
0.1 0.41
5.1 1.71
T16-18
T16 SeriesCV20 Angled Mold Contour
Angled Mold Contour
6°; K= 0
L = 2 - TANOrifice Dia.2
L = 2 + K - TANOrifice Dia.2
6° 16°; K= 4.2TAN + -21.6COS
K
2 Land
L
2
16°; K= 12TAN + - 4.5COS2
Orifice Dia.L = 2 + K - TAN
2 Min
1.6 Min
6 Min
When gating onto an angled moldcontour the vestige height may beincreased depending on the angle.
K is the increase in vestige heightrequired to maintain 1.6 wall, 2 wallor 6 wall thickness.
T16-19
T16 SeriesManifold Nozzle
17.4
J
18
H6Ø24
30
120
1
8.46
Ø46
4.5
R 0.8
40
11.2Ref
Ø1-3.5
R 0.8
45
2
0.080.13Land
Filled and unfilled materials.
No tip witness mark on part.
More heat in gate area for semi-crystalline materials.
Heat pipes for isothermaloperation.
Cooling is required in the gatearea.
T16 CV21
RD is the radial distance from themanifold center locator to themanifold nozzle center line.
DR niMJ DR niMJ051 48 004 341
002 79 054 351
052 901 005 261
003 221 055 071
053 331 006 971
elytSretaeH niMJ xaMJ ytQretaeH /sttaWstloV
)gnol83(dnaB 57 9.941 1 V042/W005
)gnol15(dnaB 051 573 2 )hcae(V042/W006
T16-20
T16 SeriesCV21 Recess
30
RecesshD = 13 + 3.5h
Ø13
D
Conical Recess
Orifice
0.080.13
Land
2
h Max = 1.5
Recessed gates are used to reducevestige height above the partsurface or keep the vestige belowthe part surface.
Maintain 0.13 land when machininggate recess.
Values in tables are for materialsnot having glass fibers. ConsultSynventive for vestige heightwhen using glass fillers.
Spherical Recess
Recessh
D
R25
D = 2 h(50-h)
Orifice 0.130.08 Land
2
d(flat)
h Max = 1.5
sseceRlacinoCecifirO h D
0.1 95.0 1.51
5.1 67.0 7.51
0.2 39.0 3.61
5.2 90.1 8.61
0.3 62.1 4.71
5.3 34.1 0.81
sseceRlacirehpSecifirO h d D
2.1-0.1 56.0 54.1 33.11
4.1-2.1 27.0 56.1 19.11
6.1-4.1 97.0 58.1 74.21
8.1-6.1 68.0 50.2 00.31
0.2-8.1 39.0 52.2 15.31
2.2-0.2 00.1 54.2 00.41
4.2-2.2 60.1 56.2 14.41
6.2-4.2 21.1 58.2 08.41
8.2-6.2 81.1 50.3 81.51
0.3-8.2 62.1 52.3 76.51
2.3-0.3 23.1 54.3 30.61
5.3-2.3 04.1 56.3 05.61
T16-21
T16 SeriesCV21 Angled Mold Contour
Angled Mold Contour
K
1.3 Min
2
Orifice Dia.
6° 16°; K= 4.2TAN + + TAN - 2
L = 0.13 + K - TAN
2 COS
L = 0.132
6°; K= TANOrifice Dia. 1.6COS2
L = 0.13 + K - TANOrifice Dia.2
16°; K= 12TAN + - 4.5Orifice Dia. - 1 2
Land
0.080.13
2
L
7 Min
When gating onto an angled moldcontour the vestige height may beincreased depending on the angle.
K is the increase in vestige heightrequired to maintain 0.13 land, 2and/or 7 minimum wall.
T16-22
T16 SeriesManifold Nozzle
15.9 6 Contact
J
18
H6Ø24
Ref9.7
120
30
1
0.13Pin protrusion
2 Land
Ø3.9
15
Ø5
R0.13
Ø46
Filled and unfilled materials.
Heat pipes for isothermaloperation.
Tapered valve pin to eliminategate flash.
The front face of the tip must bein contact with plastic.
Cooling is required in the gatearea.
T16 VG12 Tapered
RD is the radial distance from themanifold center locator to themanifold nozzle center line.
DR niMJ DR niMJ051 48 004 341
002 79 054 351
052 901 005 261
003 221 055 071
053 331 006 971
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T16-23
T16 SeriesVG12 Angled Mold Contour
Angled Mold Contour
K contact4 Min
1.6 Min
2 Land
Ø3.9
0.13
15
R0.13
6° 27°; K= 4.2TAN + -2
E = K + 12TANE = 12TAN
6°; K= 0 COS1.6
E = K + 12TAN
27°; K= 23TAN - 9.9
6 Min
E
When gating on an angled moldcontour the vestige height may beincreased depending on the angle.
K is the increase in land requiredto maintain 1.6 wall, 6 wall and/or 4minimum contact.
T16-24
T16 SeriesManifold Nozzle
15.9 6 Contact
J
18
H6Ø24
Ref9.7
120
30
1
0.13Pin protrusion
2 LandØ4.999
30
Ø5
R0.13
Ø5.009
0.3
Ø24
Filled and unfilled materials.
Heat pipes for isothermaloperation.
Straight valve pin in gate for non-adjustable actuators and glassfilled materials.
The front face of the tip must bein contact with plastic.
Cooling is required in the gatearea.
T16 VG12S Straight
RD is the radial distance from themanifold center locator to themanifold nozzle center line.
DR niMJ DR niMJ051 48 004 341
002 79 054 351
052 901 005 261
003 221 055 071
053 331 006 971
elytSretaeH niMJ xaMJ ytQretaeH /sttaWstloV
)gnol83(dnaB 57 9.941 1 V042/W005
)gnol15(dnaB 051 573 2 )hcae(V042/W006
T16-25
T16 SeriesVG12S Angled Mold Contour
Angled Mold Contour
K contact4 Min
1.6 Min
2 Land
E
30
0.13
Ø5.009R0.13
E = K + 12TANE = 12TAN
6°; K= 0 COS1.6
E = K + 12TAN
27°; K= 23TAN - 9.9
6 Min
Ø4.999
6° 27°; K= 4.2TAN + -2
When gating on an angled moldcontour the vestige height may beincreased depending on the angle.
K is the increase in land requiredto maintain 1.6 wall, 6 wall and/or 4minimum contact.
T16-26
T16 SeriesManifold Nozzle
J
18
0.13Pin protrusion
2 Land
Ø3.9
15
Ø5
R0.13
30
28.46
H6Ø24 11.2
Ref
4.5
R 0.8R 0.8
40
Ø46
120
1
17.4
Filled and unfilled materials.
No tip witness mark on part.
Heat pipes for isothermaloperation.
Tapered valve pin to eliminategate flash.
Cooling is required in the gatearea.
T16 VG23 Tapered
RD is the radial distance from themanifold center locator to themanifold nozzle center line.
