User manual HUSKY HRDC-NOZZLE-SELECTION-061117

[. . . ] Nozzle Size Nozzle Throughput Notes · Designed for molding smaller parts and restricted access. · 3-year leakproof guarantee · Targeted for closures and small parts requiring excellent gate quality and rapid color change · 11 gating options available · 3-year leakproof guarantee · PRONTO Hot Runners are available. · Improved thermal profile and wider operating window · Suitable for a wide variety of engineering and commodity resins · 10 gating options available · 3-year leakproof guarantee · PRONTO Hot Runners are available. [. . . ] The gate is sheared upon mold separation; gate quality is affected by the ability to shear gate cleanly. Edge Gate Small Pitch · Ideal for sidewall gating applications · Minimal Gate Vestige Edge Gate Large Pitch · Ideal for sidewall gating applications · Minimal Gate Vestige Contact Husky for more information Please confirm all dimensions and nozzle/gating suitability with Husky prior to machining. 16 2006. 08 Nozzle Selection SINGLE NOZZLE GATING SD (Single Drop) · For single cavity and prototype molds · Available for Ultra 250 - 1000 nozzle sizes · Available in hot tip and valve gates Please confirm all dimensions and nozzle/gating suitability with Husky prior to machining. 2006. 08 17 Nozzle Selection SELECTION PROCESS The success of any hot runner system is dependent on the selection of a suitable gating option for the particular application. Three criteria are used to determine the best gating option. SHOT WEIGHT MATERIAL COMPATABILITY GATE LOCATION VESTIGE The shot weight per nozzle required to fill the molded part will determine the nozzle size. The resin type to be processed determines suitable gating options. Resin properties to be taken into account include: Amorphous / Semi crystalline Abrasive Additives Used Color Change Frequency Gate location and acceptable gate vestige must be considered. GATING OPTION Please confirm all dimensions and nozzle/gating suitability with Husky prior to machining. 18 2006. 08 Nozzle Selection SELECTION GUIDELINES ULTRA 250 Throughput (grams / sec. ) HT-D HT-T HT-DX HT-U HT-TX Low Medium High 10 4 1 10 4 1 6 2 1 10 4 1 10 4 1 *Noted throughputs are approximate guidelines. Material Compatibility HT-D HT-T HT-DX HT-U HT-TX Resin Structure A A A A A A A A SC SC SC SC SC SC B SC SC Resin ABS PC PETG PMMA PS SAN TPE TPUR LCP PA PA(33%GF) PE POM PP PPO(PPE+PS/PA) PBT PET STD STD STD STD WR STD Abrasive Color Change = Recommended = Requires Review SC = Semi Crystalline X = Not Recommended B = Blend A = Amorphous · Information subject to change. · Maximum through puts are estimated based on injection presses capable of injection pressures up to 137. Through puts may be higher or lower based on machine capabilities, and part characteristics. · Maximum permissible injection pressure is 158. 6 MPa (30, 000 psi). · Independent temperature control is required for all 250 tips (group control is not supported). · All gate cooling layouts must be reviewed by Husky prior to machining. · Minimum T = 140°C (184°F) (melt to mold temperature). · HT-X gating not acceptable for resins with MFI < 5 · HT-T and HT-TX gate diameter must be < 0. 8mm (. 03") · HT-U standard (STD) tips are not recommended if heat sensitive additives are used or very heat sensitive resins. Please confirm all dimensions and nozzle/gating suitability with Husky prior to machining. 2006. 08 19 Nozzle Selection SELECTION GUIDELINES ULTRA 500 Throughput (grams / sec. ) SCVG VG VX VG-X VG-XX HT-D HT-T HT-U HT-DX HT-DC TS Low Medium High 20 12 10 20 12 10 20 12 10 20 12 10 20 12 10 16 10 3 16 10 3 16 10 3 16 10 3 16 10 3 30 20 12 *Noted throughputs are approximate guidelines. Material Compatibility Resin Structure A A A A A A A A A A A SC SC SC SC SC SC SC A/SC B B A SCVG VG VX VG-X VG-XX HT-D HT-T HT-U HT-DX HT-DC TS Resin ABS PC PEI PMMA PS PSU Flex. PVC TPE SAN TPO TPUR PA PA (33% GF) PBT PE PET POM PP PPO (PPE+PS/PA) PBT/PC PC/ABS PETG Abrasive Color Change = Recommended = Requires Review SC = Semi Crystalline X = Not Recommended B = Blend A = Amorphous · Information subject to change. · Maximum through puts are estimated based on injection presses capable of injection pressures up to 137. Through puts may be higher or lower based on machine capabilities, and part characteristics. · Wear resistant tips required for process temperature above 300°C (572°F) and resins with an abrasive filler i. e. · For All SCVGs: Preventative maintenance is required at 250, 000 cycles (disassembly, clean resin deposits, replace all seals, inspect valve stem reverse taper seat and stem assembly for any noticable wear). [. . . ] Refer to the Design Information pages within the Nozzle Selection section for standard L-Dimension ranges. For Ultra 250, Ultra 500, Ultra 750 and Ultra 1000 systems, the customer has the option of specifying the BL-Dimension instead of the L-Dimension. For 1250 Series the customer can specify the ML-Dimension instead of the L-Dimension. Refer to the section entitled MLDimension for additional infomation. VG, HT-D, HT-T, HT-U, HT-DX, HT-TX VX, HT-DC, TS Please confirm all dimensions and nozzle/gating suitability with Husky prior to machining. 2006. 08 26 Nozzle Selection BL-DIMENSION For all Ultra 250, Ultra 500, Ultra 750 and Ultra 1000 systems, the BL-Dimension is defined from the bottom of the nozzle bore to the molding surface at the gate centerline. [. . . ]