EXPANDABLE CAVITY SYSTEMS Applications Engineering Quote Request Form
Email completed Quote Request Form to: dme@dme.net
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Expandable Cavity Requirements I. POLYMER SPECIFICATIONS: A. What is the material to be molded? B. What is the process temperature ?
Filled
Unfilled
Glass
Mineral
II. DIMENSIONS OF EXPANDABLE CAVITY: (Part print is required) A. Specify largest diameter to be molded B. Specify smallest diameter to be molded
C. Specify major diameter of undercut or thread D. Specify minor diameter of undercut or thread
III. MOLDED PART LENGTH: A. Molding Length:
(Within the Expandable Cavity)
.200
B. Mold Shut-off:
(Shut-off land below part)
IV. EXPANSION REQUIREMENTS: (See Expandable Cavity and Striker Insert Design) A. Critical Expansion per side: B. Loss of expansion (.050in/in): Multiply molding length (Distance from top of Expandable Cavity to bottom of last undercut) by .050in C. Clearance (Air) between plastic and steel upon expansion:
.005
V. MOLD LAYOUT
A. Distance from gate (center to center): B. Number of cavities: Retrofit New Mold
134
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