Dalian mould processingCompany detail of precision injection molding shrinkage in the solution of the problem.

Dalian mould processingCompany detail of precision injection molding shrinkage in the solution of the problem.

Of precision injection molding process prone to shrinkage have thermal contraction, phase change, orientation, contraction, compression shrinkage of these four conditions, thermal contraction is due to the mould temperature and the temperature is too high, lead to actual shrinkage rate increased and so onMould processingWe will strictly control mold temperature in the process.Phase change shrinkage usually appear in the crystal resin material molding process, mold temperature affect the degree of crystallinity, temperature under the condition of high crystallinity increase, affect the actual shrinkage rate between the two.Orientation contraction can be avoid by controlling the injection speed;4, in the case of compression elastic reset and contracts, generally take increased pressure to reduce molding products volume, density will increase, and the expansion coefficient decreases, and to improve the shrinkage rate.

Precision mold processing equipment to a large extent determines the mould quality and performance, in view of the equipment ability, gree daikin always believe that only more top equipment can make high precision mould, we all know that Japan has been walking in the forefront in the precision equipment manufacturing, all imported from Japan makino, Toshiba, mitsubishi, top equipment, by choosing the similar brand, model of equipment standardize equipment management, the machining accuracy can reach 0.001 mm;Horizontal CNC equipment A100E can be clamped in 302, the cutting tool A66E 18 consecutive hours unattended operation automatically;The F5, vertical CNC A33i, A56i machine tools such as maximum speed 30000 RPM.26 mitsubishi WEDM.

Precision injection mold with ordinary mold mold cavity dimension precision is high, is the biggest difference for mold cavity positioning and parting surface accuracy requirement is very high, therefore, the dimensional tolerance of precision injection mold needs to control the tolerance size of the products under a third.Even the mold processing company mainly precision injection molds, sheet metalStamping die, precision stamping mould and molding product development, production, sales and after-sales service as a whole, mainly including cars, car lights, home appliance, office areas such as mold, using advanced manufacturing equipment and precision imported CAE/CAD/CAM technology, perfect quality and short delivery time.

Comparing top CNC processing equipment including makino A100E, makino CNC precision graphite, Toshiba five-axis gantry CNC, precision vertical CNC;Precision grinding machine equipment including optical curve grinding machine imported from Japan and plane grinding machine equipment;Mitsubishi complete series WEDM equipment 10 s and 20 s, 30 v, machine tool with functions of automatic wire feed, AR function, without correction workpiece parallel to realize high precision processing, highest can realize the processing precision of + / - 0.002 mm.Makino, EDM machine tool with ATC electrode library, more than 1000 kinds of processing conditions to cope with various complex parts processing, which can realize processing precision of + / - 0.005 mm, which can realize the surface roughness Ra0.2 microns mirror processing.

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