Page 490 - Injection Molding Advanced Troubleshooting Guide

490 Index

stress concentrations 228 toggle wear 295
stress risers 224 tonnage 292, 477
string 450 tonnage per square inch 292
stringers 288, 443 TPE 341, 441
stringing 168, 184, 262 TPO 144, 149, 221, 328
stuck plastic 387 TPU 90, 341–343, 352, 415, 417, 441, 442
styrene-butadiene copolymer 196 tracer pellets 155
styrenic 204 training 342
sub gate 35, 36, 108, 235, 277, 279, 408 transfer 243, 322, 463
sub gated 359 transfer position 250, 284, 322, 379
suicide/crash condition 44 transfer pressure 301, 411
support pillars 289 transferring 267, 305
surface area 42 transparent 171, 191, 456
surface finish 229 trapped plastic 288
switches 45 travel 229, 350
systematic 3 trimming 373
T-slot coupler 42, 44
T tuning 70, 74
turbulent flow 126, 259, 351, 403
talc 328, 462 turbulent water flow 460
TCU 128
Teflon thread tape 404 U
temperature 76
temperature control 425 unbalanced flow 303
template 382, 453 uncovered containers 237
texture 47, 321, 324, 328, 342, 358, 373 undercut 228, 280, 339, 342, 435
texture depth 340, 374 uniformity 168
thermal control 229 uniform melt 201
thermal image 259, 327, 403 uniform nominal wall stock 240, 303
thermal imaging 434, 461 unmelted 250
thermal imaging camera 25, 106, 258 unmelted pellets 269
thermally stable 190 unmelts 172, 272, 395
thermocouple 83, 95, 99, 147, 167, 184, 388, unmelt test 395
422 unsupported length 365
thermocouples 76, 78, 111, 118, 156, 159, 229, UV stabilizers 179
446, 448
thermolator 106, 257, 311, 365, 454, 459, 461 V
thermoplastic elastomers 50
thermoplastic polyurethane 50 vacuum 166, 177, 263, 339, 341, 451
thick wall sections 398 vacuum cups 217, 371
thin sections 302 vacuum venting 58
thin wall 293, 303 valve gate 95, 96, 119, 247, 405, 447, 448
thin wall sections 257 valve gate control 122
throughput 237 valve gating 477
tie bar 293, 294 valve pin 194, 405
timing out 379 valve pin actuation 303
TiO 221 valve tuning 410
2
tip radius 440 vapor locks 402
toggle links 295 velocity 65
toggle machine 285 velocity linearity 66, 314
velocity to pressure response 409