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E-100(DETDA)およびE-300(DMTDA)モルゲルタイムの効果

No Spin Casting Mold Core Technology Is A Two-Component Gel Time Pouring System: Long Gel Time, Casting Material Can Not Be Attached In The Roll Surface, Easy Gob; Gel Time Is Short, Casting Material In The Roll Surface Has Not Yet Had Time To Spread Out It Has A Gel Form Ridges Filled Bars [4]. When The Group B Is Divided Into The Sections Selected ME-100: ME-300: MP650 = 25: 25: 50 When The Gel Longer Castable. Experimental P650 Fixed Mass Fraction Of 50 By Changing E-100 / E-300 To Change The Mass Ratio Of The Gel Time Casting, Spin Casting To Achieve The Optimum Process Conditions.

Effect Of E-100 And E-300 Mass Ratio Of Spin Casting Performance

E-100(DETDA)およびE-300(DMTDA)モルゲルタイムの効果

品目

1

2

3

4

5

Formulation B component (parts by mass)

E-100

20

25

30

35

40

E-300

30

25

20

15

10

P650

50

50

50

50

50

Casting Performance

Gel time / s

15

13

12

10

9

Package roll status

ゴブ

No tear drops, but multi-surface roughness

No tear drops, surface roughness

No tear drops, uneven surface

No tear drops, the surface was shaped ridge

Hardness / shoreA

90

90

90

91

91

Increasing The E-100 And E300 Mass Ratio, The Gel Time Of The Product Is Reduced Accordingly, Drip Phenomenon Gradually Improving. This Is Because The Reaction Activity Higher Than E-100 E-300, It Is Determined Mainly By The Number Of Copies Of The E-100 Compound B Gel Time. When The Number Of Copies E-100 Is Increased To 30 Parts, Castable Gel Time Reduced To 12 S, Castable Surface Smooth, Continuous Casting The Second And Third Layer Of Polyurethane Drool Phenomenon Does Not Occur. Continue To Increase The E-100 To 40 Parts, Gel Time Is Reduced To 9 S, Castable Gel Quickly After Contacting The Roll Surface, Resulting Castable Can Not Roll Surface Flattening Roll Surface Viewed From The Outside 1 ~ 2mm Ridge Shape Uplift. Data Can Also Be Seen In The Table, Do Not Change The Amount Of P650, Only Change The Mass Ratio Of E-100 And E300, The Polyurethane Casting Had Little Effect On The Hardness.

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