MANAGEMENT METHOD IN REAL TIME SCALE BY MANUFACTURE PROCESS OF MULTICOMPONENT SHEET MATERIAL Russian patent published in 2017 - IPC B32B41/00 

FIELD: technological processes.

SUBSTANCE: method is implemented by controlling the production process of a multi-component sheet material containing a pre-impregnated fiber-reinforced structure. The method comprises the steps of applying an acoustic ultrasonic signal to interact with a sheet material that alters the applied signal. An altered signal is detected in the form of the transmission coefficient of the signal through the sheet, the speed of the detected signal, and the time of signal transmission through the sheet. The changed signal or the data received from it is compared with the data concerning the given parameter. The stage of the process is continuously changed, whereby the data relating to the changed signal are changed in the direction of approaching the data related to the given parameter. The pre-impregnated fiber-reinforced structure is produced in a process comprising an impregnation step including the resin engaging with the reinforcing material and a sealing step. Moreover, the process step is being changed during the process in response to the result of comparing the detected signal with data relating to the predetermined parameter. The noted step is selected from the roller compression force, the distance between the resin applicator and the reinforcing material, the resin temperature, the resin consumption and the linear process speed.

EFFECT: reducing or eliminating the formation of a reclaimable or irrepairable reject.

11 cl, 3 dwg