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【正文】 y C u r v e , D e te r m in e s O p tim u m F ill Tim e 黏度曲線 ,決定最佳注入時間1 0 . 6 95 . 2 72 . 2 01 . 2 70 . 6 60 . 4 70 . 3 20 . 2 20 . 1 00 . 1 30 . 1 605,00010,00015,00020,00025,00030,00035,00040,00045,000 S h ear R ate 1/ s ec (1/ F ill Tim e)R elativ e V is c o s ityStiff Easy Slow Fast 9 2. Plastic Flow Rate Typical Plastic Flow 典型的塑膠流動 V is c o s ity C u r v e , D e te r m in e s O p tim u m F ill Tim e 黏度曲線 ,決定最佳注入時間1 0 . 6 95 . 2 72 . 2 01 . 2 70 . 6 60 . 4 70 . 3 20 . 2 20 . 1 00 . 1 30 . 1 605,00010,00015,00020,00025,00030,00035,00040,00045,000 S h ear R ate 1/ s ec (1 / F ill T im e)R elat iv e V is c o s ityStiff Easy Slow Fast Non Newtonian Mixed Newtonian 10 2. Plastic Flow Rate Newtonian fluids can be defined as those for which viscosity is a constant regardless of shear stress or rate of shear. 牛頓流體 可被定義為黏度是一個常數(shù) ,不隨著剪切應(yīng)力或剪切率變化的流體。 NonNewtonian fluids are those for which viscosity is not a constant, but varies based upon the rate of shear or the shear 頓流體 是那些黏度不是一個常數(shù) , 而是隨著剪切應(yīng)力或剪切率變化的流體 11 2. Plastic Flow Rate Momentum Effect 慣性作用 V is c o s ity C u r v e , D e te r m in e s O p tim u m F ill Tim e1 0 . 6 95 . 2 72 . 2 01 . 2 70 . 6 60 . 4 70 . 3 20 . 2 20 . 1 00 . 1 30 . 1 605,00010,00015,00020,00025,00030,00035,00040,00045,000 S h ear R ate 1/ s ec (1/ F ill Tim e)R elativ e V is c o s ityStiff Easy Slow Fast Electric電力 Hydraulic水力 12 2. Plastic Flow Rate MFR Effect MFR 效應(yīng) V is c o s ity C u r v e , D e te r m in e s O p tim u m F ill Tim e1 0 . 6 95 . 2 72 . 2 01 . 2 70 . 6 60 . 4 70 . 3 20 . 2 20 . 1 00 . 1 30 . 1 605,00010,00015,00020,00025,00030,00035,00040,00045,000 S h ear R ate 1/ s ec (1/ F ill Tim e)R elativ e V is c o s ityStiff Easy Slow Fast MFR 6 MFR MFR 10 gm/10 minutes. Shear Rate 1/10/60 = .007 Machine flow rate 30 gm in .5 sec =3/.05=60 13 2. Plastic Flow Rate Melt Temp Effect 融熔溫度效應(yīng) V is c o s ity C u r v e , D e te r m in e s O p tim u m F ill Tim e1 0 . 6 95 . 2 72 . 2 01 . 2 70 . 6 60 . 4 70 . 3 20 . 2 20 . 1 00 . 1 30 . 1 605,00010,00015,00020,00025,00030,00035,00040,00045,000 S h ear R ate 1/ s ec (1/ F ill Tim e)R elativ e V is c o s ityStiff Easy Slow Fast 525 deg F 425 deg F 14 2. Plastic Flow Rate Plastic Viscosity Varies塑料黏度的變化與以下有關(guān) ? With injection sp
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