Role of Parts

Table of Contents

Cavity and Core

Cavity and Core
Type of Insert
Making Inserts
Position of Inserts
Type of Inserts

Runner System

Shape of Runner
Size of Runner
Layout of Runner
Restricted Gate
Non-restricted Gate
Determining Gate Position
Parts of Sprue
Locate Ring
Sprue Bush
Shape of Runner
Name of Gate

Undercut Process

Outer Slide Core Method
Slide Core Body Unit
Push Back Spring
Inner Slide Method
Loose core Method
Method to Push Out Undercut
Inner Slide Core Method
Hydraulic Cylinder Method
Movement of Hydraulic Cylinder
Calculation of Hydraulic Cylinder
Slide Core Setting
Loose core Setting
Hydraulic Cylinder Calculation

Ejecting Parts

Pin Ejection
Pin Ejection
Boss Ejection
Shoulder Pin Ejection
Disk oPin Ejection
Sleeve Pin Ejection
Stripper Plate Ejection
Compressed Air Ejection
Two-Stage Ejection
Hydraulic Ejection
Ejector Plate
Weight Calculation
Selecting Return Spring
Coil Spring
Gas Spring
Type of Ejection

Selecting Ejector Plate Ejection Spring 1

Selecting Ejector Plate Ejection Spring 2

Selecting Gas Spring

Mold Cooling

Position of Cooling Channel
Cavity Cooling
Core Cooling
Core Cooling Method

Degassing and Air Vent

What is Degassing and Air Venting?
Design of Degassing and Air Venting
Defect by Degassing and Air Venting

Considering Mold Dimension

Mold Dimension
Possibility of Part Removal
Ejector Rod Position
Mold Dimension

Determining Material of Mold

Material Criteria
Types and Use of Material of Mold
Heat Treatment of Material
Heat Treatment of Steel Material
Surface Hardening of Steel Material
Types for Material of Mold

Mold for Screw Thread Forming

Type of Screw
Molding Inner Screw
Fixed Screw Core Molding
Force Ejection Molding
Removable Screw Core Molding
Rotating Screw Molding (1)
Rotating Screw Molding (2)
Positioning of Rotating Screw Core
Molding Outer Screw
Fixed Screw Cavity Molding
Force Ejection Molding
Slide Core Screw Molding
Name of Screw Thread Molding

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