Shanghai Daoqin Plastics Co., Ltd.

        【 in in 线讯】 pressure shrink molding also is pressure shrink molding, pressure molding or pressure made molding. main/primary used for hot solid property plastics molding, can used for thermoplastic property plastics molding.

         hot solid property material compression molding molding obvious advantages is system simple. will material 置入一 add hot type 腔, holding pressure requirements time. process process simple, use less. additives and reinforcement agent random 则, can to relatively good strong/high degree. due to gate and runner, 不浪费材 material, mold 几乎也不 use repair. parts property good, 无铸口 and flow marks, decrease/reduce cost. according to products structure and use plastics application features, can using/adopting full pressure mold, semi pressure mold and 闭模.

        一 thermoplastic plastics can compression molding 模塑, generally also is use mixed hot solid property resin 如BMC(预 made overall plastics), SMC(sheet/slice material molding plastics), TMC (thick plastics), sheet/slice molding and other.

         pressure shrink molding features: 1. plastics add type 腔, add material is type 腔 延伸;2. mold is in parts most molding 时才完 full combined;3. pressure through 凸模直接传 to plastics. has molding flow property relatively 差 以 fiber is filler polymer, can pressure made belt/tape has fine, easy parts and relatively more parts parts, easy obtain dimensions degree especially is high degree parts;4.操 as simple, mold structure simple. has system, material consumption less, can pressure made relatively large 平面塑 parts or one-time pressure made more parts, parts shrinkage small, deformation small, toward property can uniform, strong/high degree high;5. production cycle long, efficiency low.

         pressure shrink classification: mold in pressure machine upper solid methods separation 移动式 pressure shrink 模, semi solid pressure shrink and solid pressure shrink 模. mold add material 室 形式 separation can separation pressure shrink 模, 不溢式 pressure shrink and semi pressure shrink 模.

        传统 compression molding process year 一直呈 growth trend. in technology and national defense application positive in make this type of process toward its difficulty/challenge impact. in SMC, BMC, TMC, thermoplastic property sheet/slice 材 冲 pressure, reinforcement material mixed and compression molding machine 械方面 development speed growth, 以适应 industrial new requirements