塑膠射出成型問題診斷與產(chǎn)品模具設(shè)計-資料下載頁
2025-02-12 17:11本頁面
【正文】 material constant for PE, PS for POM, PC, PP for CA, PMMA, PA for PVCdLt潛伏式澆口設(shè)計Subgate DesignW= w= 澆口寬度 [mm] gate width in mmA= 型腔表面積 [ mm2 ] surface area of cavity in mm2n= 材料常數(shù) [ material constant ] for PE, PS for POM, PC, PP for CA, PMMA, PA for PVC澆口厚度 [ gate thick. in mm] = ntt= 零件壁厚 [ wall thick. in mm ]30? ~15186。 ~ 25186。剪切速率Shear Rate剪 切 應(yīng) 力shear Stress黏 度viscosity剪 切 速 率shear rate剪切應(yīng)力Shear Stress水力直徑 Hydraulic DiameterWhere is the hydraulic diameter 水力直徑 A is the crosssectional area of the flow 流路斷面積 P is the wetted perimeter 濕周長水力直徑 Hydraulic Diameter在不同剖面形狀，相同斷面積下之變化Various runner profiles, based on the same crosssectional area流道尺寸設(shè)計 (1) Runner Sizing (1)D : 流道直徑 ( mm ) runner diameter in mmW : 下游塑膠重量 ( g ) downstream plastic weight L : 流道長度 ( mm ) runner length in mm流道尺寸設(shè)計 (2) Runner Sizing (2)流道尺寸設(shè)計 (3) Runner Sizing (3)流道尺寸設(shè)計 (4) Runner Sizing (4)流道尺寸設(shè)計 (A1) Runner Sizing (A1)G : 重量 weightS : 零件厚度 thicknessD39。 : 參考直徑 reference diameterG( g ) D39。 ( mm )for PS, ABS, SAN, CAB流道尺寸設(shè)計 (A2) Runner Sizing (A2) G( g ) D39。 ( mm )for PE, PP, PA, POMG : 重量 weightS : 零件厚度 thicknessD39。 : 參考直徑 reference diameter流道尺寸設(shè)計 (B) Runner Sizing (B)D39。 : 參考直徑 reference diameterL : 長度 lengthfL : 長度係數(shù) Length coefficientD : 流道直徑 runner diameterfLL (mm)D = D39。 ? fL冷料井設(shè)計Cold Slug Well Design2d 次流道Secondary runnerd主流道Primary runner澆口Gate型腔Cavity倒椎度冷料井豎澆道拉料桿Reverse taper cold slugwell sprue pullerZ型冷料井豎澆道拉料桿 Z taper cold slugwell sprue puller溝型冷料井豎澆道拉料桿Grooved cold slugwell sprue puller冷料井設(shè)計Cold Slug Well Design澆道襯套尺寸Sprue Bushing Sizing謝謝觀看 /歡迎下載BY FAITH I MEAN A VISION OF GOOD ONE CHERISHES AND THE ENTHUSIASM THAT PUSHES ONE TO SEEK ITS FULFILLMENT REGARDLESS OF OBSTACLES. BY FAITH I BY FAI
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