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    • 8. 发明专利
    • METHOD OF STICKING LINER TO CORRUGATED BOARD SHEET
    • JPH01159241A
    • 1989-06-22
    • JP31939187
    • 1987-12-17
    • MITSUBISHI HEAVY IND LTD
    • YOSHIHARA AKIYOTOYOFUKU TOSHIHIRO
    • B31F1/24
    • PURPOSE: To shorten a heating length by adding good conductive fine particles to paste parts adhered to ridge tops of a corrugating core sheet or adhering paste previously mixed with the particles to the tops, then adhering it to a liner, and applying an alternating magnetic field to the adhered part to thermoset it. CONSTITUTION: As fine particles having good electric conductivity, for example, an iron, stainless steel, aluminum, copper, brass, iron alloy, iron oxide or the like can be applied. And, as a frequency, normally about 10 to 10 kHz can be applied. After passing a gluing machine 14, ridge tops of a corrugated core sheet 1 attached with paste 13 are sprayed with the particles. When a current flows to an arranged coil 15, Joule heat is generated in the particles of the good electric conductor previously contained in the paste to heat the paste, thereby gelatinizing the paste. In this case, the particles are previously formed in a sheet, and supplied. At the time of adhering, it may be inserted between the single-faced corrugated fiberboard 1 and the liner 2 to be sandwiched.