{"id":750,"date":"2026-05-06T06:41:08","date_gmt":"2026-05-06T06:41:08","guid":{"rendered":"https:\/\/isbm-blow-molding.com\/?p=750"},"modified":"2026-05-06T06:41:08","modified_gmt":"2026-05-06T06:41:08","slug":"dual-servo-clamping-high-pressure-compensation-eliminating-flash-defects","status":"publish","type":"post","link":"https:\/\/isbm-blow-molding.com\/fr\/dual-servo-clamping-high-pressure-compensation-eliminating-flash-defects\/","title":{"rendered":"Serrage \u00e0 double servo et compensation haute pression \u2014 \u00c9limination des bavures"},"content":{"rendered":"
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M\u00e9canismes de serrage \u00b7 Analyse technique approfondie<\/div>\n

\u00c9limination des bavures : l'ing\u00e9nierie m\u00e9canique derri\u00e8re le serrage \u00e0 double servo et la compensation haute pression<\/h1>\n

Bottle flash and parting-line marks aren’t a quality fluke \u2014 they’re the inevitable signature of inadequate clamping force during high-pressure blow. Older hydraulic-pneumatic clamping systems lose pressure during the 2.0\u20133.5 MPa blow event, the mould micro-opens 0.05\u20130.15 mm, and resin escapes the parting line. Here’s how Korean Ever-Power’s dual-servo electric clamping with high-pressure compensation eliminates the failure mode entirely.<\/p>\n

Bureau d'ing\u00e9nierie Ever-Power (Cor\u00e9e) \u00b7 Ansan-si, Gyeonggi-do \u00b7 Mise \u00e0 jour\u00a0: 2026<\/div>\n<\/div>\n<\/header>\n

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TL;DR \u2014 Verdict en 30 secondes<\/div>\n

d\u00e9fauts d'\u00e9clair<\/strong> on bottle parting lines aren’t a mould problem \u2014 they’re a clamping force problem. When the blow event delivers 2.0\u20133.5 MPa of internal bottle pressure, the mould halves experience separation force in the 180\u2013600 kN range. Hydraulic clamping systems lose pressure during this event, the mould micro-opens, and resin extrudes through the parting line. Manual trimming is the workaround \u2014 and it costs Korean producers KRW 80M\u2013250M per year in unnecessary labor.<\/p>\n

Korean Ever-Power’s dual-servo clamping architecture<\/strong> Ce proc\u00e9d\u00e9 utilise deux servomoteurs coordonn\u00e9s assurant un verrouillage m\u00e9canique rigide plut\u00f4t qu'une pression hydraulique, ainsi qu'un circuit de compensation haute pression actif qui injecte une force oppos\u00e9e en quelques microsecondes lors des pics de pression de soufflage. R\u00e9sultat\u00a0: absence de bavures, de marques de joint de joint et de travail d'\u00e9bavurage manuel, et dur\u00e9e de vie du moule 4 \u00e0 6 fois sup\u00e9rieure gr\u00e2ce \u00e0 la protection des bords de la cavit\u00e9 contre les micro-ouvertures r\u00e9p\u00e9t\u00e9es.<\/p>\n<\/section>\n

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