Upload
mahesh-deivasiga-mani-d
View
218
Download
0
Embed Size (px)
Citation preview
7/29/2019 Shrinkage Table
1/6
(in./in.)min
range
(in/in)
maxrange
(in/in)
(mm./mm.)min range
(mm/mm)
1 ABS- High Impact .005 - .007 0.005 0.007 0.127 - 0.178 0.127
2 ABS- Medium Impact .005 - .008 0.005 0.008 0.127 - 0.203 0.127
3 ABS-High Heat .004 - .006 0.004 0.006 0.102 - 0.152 0.102
4 ACETAL .020 - .035 0.02 0.035 0.508 - 0.889 0.508
5 ACRYLIC- General Purpose .002 - .009 0.002 0.009 0.051 - 0.229 0.051
6 ACRYLIC- High Flow .002 - .007 0.002 0.007 0.051 - 0.178 0.051
7 ACRYLIC- High Heat .003 - .010 0.003 0.01 0.076 - 0.254 0.076
8 ACRYLIC- Impact .004 - .008 0.004 0.008 0.102 - 0.203 0.102
9 NYLON- 6,6 .010 - .025 0.01 0.025 0.254 - 0.635 0.254
10NYLON- 6 .007 - .015 0.007 0.015 0.178 - 0.381 0.178
11 NYLON- Glass Reinforced .005 - .010 0.005 0.01 0.127 - 0.254 0.127
12 POLYCARBONATE .005 - .007 0.005 0.007 0.127 - 0.178 0.127
13 POLYESTER .025 - .050 thick .006 - .0012 0.006 0.0012 0.152 - 0.03 0.152
14 POLYESTER .050 - .100 thick .012 - .017 0.012 0.017 0.305 - 0.432 0.305
15 POLYESTER .100 - .180 thick .016 - .022 0.016 0.022 0.406 - 0.559 0.406
16 POLYETHERIMIDE .005 - .007 0.005 0.007 0.127 - 0.178 0.127
17 POLYETHYLENE- LDPE .015 - .035 0.015 0.035 0.381 - 0.889 0.381
18 POLYETHYLENE- HDPE .015 - .030 0.015 0.03 0.381 - 0.762 0.381
19 POLYPROPYLENE .010 - .030 0.01 0.03 0.254 - 0.762 0.254
20 PPO/HIPS (NORYL) .005 - .007 0.005 0.007 0.127 - 0.178 0.127
21 POLYSTYRENE- Crystal .002 - .008 0.002 0.008 0.051 - 0.203 0.051
22 POLYSTYRENE- Impact .003 - .006 0.003 0.006 0.076 - 0.152 0.076
23 POLYURETHANE .010 - .020 0.01 0.02 0.254 - 0.508 0.254
24 PVC-RIGID .002 - .004 0.002 0.004 0.051 - 0.102 0.051
25 PVC-FLEXIBLE .015 - .030 0.015 0.03 0.381 - 0.762 0.381
26 SAN .002 - .006 0.002 0.006 0.051 - 0.152 0.051
MATERIAL
SHRINKAGE (per ASTM D955)
Sl.No
7/29/2019 Shrinkage Table
2/6
max range
(mm/mm)
0.178
0.203
0.152
0.889
0.229
0.178
0.254
0.203
0.635
0.3810.254
0.178
0.030
0.432
0.559
0.178
0.889
0.762
0.762
0.178
0.203
0.152
0.508
0.102
0.762
0.152
7/29/2019 Shrinkage Table
3/6
Material Types and Trade Names Density
Abbreviations g/cm
Acetal POM 1.42Delrin / Hostaform / Lucel
Acrylic PMMA 1.18
Diakon / Oroglas / Plexiglas
Acrylonitrile Butadiene Styrene ABS 1.06
Lustran / Magnum / Starex
Cellulose Acetate CA 1.2
Cellidor / Dexel / Setilithe
Polyamide 6 (Nylon) PA6 1.14
Akulon / Grilon / Ultramid
Polyamide 6.6 (Nylon) PA6.6 1.14
Radilon / Vydyne / Zytel
Polyamide 11+12 (Nylon) PA11 1.18
Grilamid / Rilsan PA12
Polyester - Thermoplastic PBT 1.42
Celanex / Crastin / Rynite PET 1.34
Polycarbonate PC 1.2
Calibre / Lexan / Makrolon
Polyethylene - Low Density LDPE 0.92
Alkathene / Escorene / Novex
Polyethylene - High Density HDPE 0.96
Eraclene / Hostalen / Stamylan
Polyether Sulphone PES 1.37
Udel / Victrex
Polypropylene PP 0.91
Appryl / Escorene / Novolen
Polyphenylene Oxide PPO 1.07
Noryl / Thermocomp / Vamporan
Polyphenylene Sulphide PPS 1.65
Fortron / Ryton
Polystyrene - General Purpose GPPS 1
Lacqrene / Styron / SolarenePolystyrene - High Impact HIPS 1.05
Kostil / Polystar / Polystyrol
Rigid Polyvinyl Chloride UPVC 1.4
Polycol / Trosiplast
Plasticised Polyvinyl Chloride PVC 1.3
Varlan / Welvic
7/29/2019 Shrinkage Table
4/6
Styrene Acrylonitrile SAN 1.07
Arpylene / Luran / Starex
Thermoplastic Elastomer / Rubbe TPE 1.1
Hytrel / Santoprene / Sarlink TPR
7/29/2019 Shrinkage Table
5/6
Description and Details
Typical Applications
Natural - opaque white, very tough, low-med.costGears and bearing; taps and aerosol valves
Transparent and brittle, low - medium cost
Lenses; car light housings and reflectors
Natural opaque and tough, low - medium cost
Telephone handsets + vacuum cleaner housings
Transparent, tough, flexible to rigid, high cost
Spectacles frames and screwdriver handles
Almost opaque/white, very tough, med-high cost
Bushes, bearings, curtain runners + combs
Almost opaque/white, rigid+tough, med-high cost
Levers, housings, handles etc
Opaque to clear, rigid + tough, very high cost
Air filters, safety masks, spectacle frames etc
Rigid + stable, medium - high cost
Electrical sockets, housings and parts
Transparent, very tough and resilient, high cost
Street lamp covers and safety helmets
Natural waxy look, tough+flexible, low cost
Kitchenware and many sealing lids + closures
Natural waxy look, tough + stiff, low cost
Chair seats and milk crates
Clear, tough, v.high chemical resistance+cost
Valve seat linings, metal replacement parts etc
Natural waxy look; tough + stiff, low cost
Beer crates and spade handles
Tough + stable, high cost
Electrical parts requiring tight tolerances
Brown, v.good heat resist., v.high strength+cost
Fuel system parts, guides, bearings etc
Transparent and brittle, low cost
Cosmetics packaging and ball-point barrel pensNatural translucent and tough, low cost
Food containers; cotton reels; toys - model kits
Transparent to opaque; tough, low cost
Outdoor applications - gutters, drainpipes+fittings
Transparent to opaque; tough + flexible, low cost
Shoe soles and electrical insulation
7/29/2019 Shrinkage Table
6/6
Transparent and brittle, low cost
Table and picnicware
Tough & flexible, high cost
Electrically insulated parts, seals + bushes