Method of setting conditions of molding for injection molding machine

A molding condition setting method for injection molding machines comprising the steps of:

• determining a shape for a phantom molded article,
• selecting a plurality of magnitudes of primary physical values which can be directly set for the phantom molded article, the primary physical values include thickness of the phantom molded article and fluid length, the fluid length being selected as a distance from an outlet of a gate for a die cavity for the article to a position in the die cavity furthest from the outlet of the gate,
• inputting the magnitudes of the primary physical values into a computer,
• using each of the selected magnitudes of physical values to estimate magnitudes of secondary physical values to be generated after molding, the secondary physical values include fluid pressure, hold pressure and pressure coefficient to be generated after molding,
• inputting the magnitudes of secondary physical values into the computer,
• graphing pseudo-correlation data according to said primary physical values and said secondary physical values, the data being determined using the computer and being stored in a memory of the computer, and
• when molding is actually performed,
• inputting primary physical values of a molded article to be actually molded into the computer,
• determining secondary physical values corresponding to the inputted primary physical values according to the correlation data stored in said memory,
• calculating and setting actual molding conditions with the computer using the inputted primary physical values and the determined secondary physical values, and
• molding the article under the calculated and set molding conditions.