Injection Molding: Oper. Conds Tab

Variable Definitions, Ranges and Default Values

The following table shows a brief description of the variables appearing in this tab. The table also displays their default values and their generally acceptable range:

Variable	Default Value	Range

◙ Actual Output Capacity (entities/h)	0.0	Positive
◙ Part Cooling Time (sec)	0.0	Positive
○ Injection Time (sec)	1.5	Positive
○ Hold Time (sec)	6.0	Positive
○ Clamp Open-Close-Eject Time (sec)	5.0	Positive
○ Set Part Cycle Time Check this box to set the part cycle time.	No	Yes/No
◙ Part Cycle Time (sec)	12.5	Positive
● Operating Output (entities/h)	0.0	Positive
● Capacity Utilization (%)	0.0	Positive
○ Heat Distortion Temp. (°C)	32.2	Positive
○ Mold Temp. (°C)	26.7	Positive
○ Melt Temp. (°C)	232.0	Positive
● Duty (kcal/h) The heat transfer rate of the cooling agent.	0.0	Positive
○ Cooling Agent Name Indicates the cooling agent used for the operation. Click on the list box to bring up a list of available cooling agents in order to select one.	<Chilled Water>	Any Cooling Agent
● Inlet Temp. (^oC) The inlet temperature of the cooling agent.	5.0	Positive
● Outlet Temp. (^oC) The outlet temperature of the cooling agent.	10.0	Positive
● Shot Weight (g)	0.0	Positive
○ Set Total Plasticating Time Check this box to set the total plasticating time.	No	Yes/No
◙ Total Plasticating Time (sec)	0.0	Positive
○ Set Max. Cavity Pressure Check this box to set the maximum cavity pressure.	No	Yes/No
◙ Max. Cavity Pressure (bar)	0.0	Positive
○ Set Max. System Pressure Check this box to set the maximum system pressure.	No	Yes/No
◙ Max. System Pressure (bar)	0.0	Positive
○ Set Max. Clamp Force Check this box to set the maximum clamp force.	No	Yes/No
◙ Max. Clamp Force (N)	0.0	Positive

Symbol Key: ○ User-specified value (always input); ● Calculated value (always output); ◙ Sometimes input, sometimes output

Specification Choices / Comments

The following list describes the available specification choices in this tab; for more details on how these are implemented, see Injection Molding: Modeling Calculations.

•Actual Output Capacity Options...

The Actual Output Capacity of the unit is either specified by the user or calculated (the default) based on the Part Cycle Time.

•Part Cycle Time Options...

The Part Cycle Time by default is calculated by the program as the sum of part cooling time, injection time, hold time, and clamp open-close-eject time. However, the user also has the option to specify the part cycle time by clicking on the corresponding check box.

•Other Options...

The values of the following variables are, by default, calculated by the program: Total Plasticating Time, Maximum Cavity Pressure, Maximum System Pressure, and Clamp Force. However, the user also has the option to specify any of the above variables by clicking on the corresponding check boxes.