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1. (WO2017004300) METHOD OF INJECTION MOLDING WITH CONSTANT-VELOCITY FLOW FRONT CONTROL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/004300 International Application No.: PCT/US2016/040249
Publication Date: 05.01.2017 International Filing Date: 30.06.2016
IPC:
B29C 45/76 (2006.01) ,B29C 45/77 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17
Component parts, details or accessories; Auxiliary operations
76
Measuring, controlling or regulating
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17
Component parts, details or accessories; Auxiliary operations
76
Measuring, controlling or regulating
77
of velocity or pressure of moulding material
Applicants:
IMFLUX INC. [US/US]; 3550 Symmes Road Hamilton, OH 45015, US
Inventors:
HANSON, III, Herbert, Kenneth; US
HUANG, Chow-Chi; US
ALTONEN, Gene, Michael; US
Agent:
KRIEGEL, Jeremy, R.; US
Priority Data:
62/186,73930.06.2015US
Title (EN) METHOD OF INJECTION MOLDING WITH CONSTANT-VELOCITY FLOW FRONT CONTROL
(FR) PROCÉDÉ DE MOULAGE PAR INJECTION À RÉGULATION DE FRONT D'ÉCOULEMENT À VITESSE CONSTANTE
Abstract:
(EN) In order to injection mold parts at a constant flow front velocity in a mold cavity of an injection molding system, particularly where the mold cavity has a varying thickness along its length, mold modeling software is used to calculate the cross-sectional area as a function of the distance from the gate, percentage of fill, or length of the mold cavity. Based on that cross-sectional area, the mold modeling software determines an appropriate recommended ram force profile and/or melt pressure profile that would result in filling the mold cavity at a constant flow rate. An injection molding system is then operated according to the recommended ram force profile and/or melt pressure profile.
(FR) Cette invention concerne un procédé de moulage par injection de pièces à un e vitesse de front d'écoulement constante dans une cavité de moule d'un système de moulage par injection, en particulier lorsque la cavité de moule présente une épaisseur variable sur sa longueur, un logiciel de modélisation de moule étant utilisé pour calculer l'aire de section transversale en fonction de la distance à partir de l'entrée, du pourcentage de remplissage, ou de la longueur de la cavité de moule. Sur la base de ladite aire en coupe transversale, le logiciel de modélisation de moule détermine un profil de force de piston et/ou un profil de pression de coulée recommandé approprié qui entraîne le remplissage de la cavité de moule à un débit constant. Un système de moulage par injection est ensuite commandé en fonction du profil de force de piston et/ou du profil de pression de coulée recommandé.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
CA2984911EP3317075