MY130658A - Level wound coil, packed product of the level wound coil, and method for the supply of pipe from the level wound coil - Google Patents

Abstract

A LEVEL WOUND COIL (LWC) (20, 30, 40) COMPRISES PLURAL LAYERS OF COILS, THE PLURAL LAYERS OF COILS BEING FABRICATED BY REGULAR-WINDING A COPPER PIPE (1) TO FORM A FIRST LAYER OF COIL,THEN REGULAR-WINDING THE COPPER PIPE ON THE FIRST LAYER OF COIL TO FORM A SECOND LAYER OF COIL IN SUCH A MANNER THAT THE SECOND LAYER OF COPPER PIPE ON THE SECOND LAYER OF COIL TO FORM A THIRD LAYER OF COIL AND ON THE THIRD LAYER OF COIL TO FORM A FOURTH LAYER OF COIL. IN THIS CASE, IF THE NUMBER OF NUMBER LAYER OF COIL IS (N-1), N, OR (N+1), AND THE WINDING DIRECTION OF AN ODD-NUMBER LAYER OF COIL AND THAT IN AN EVEN-NUMBER LAYER OF COIL ARE OPPOSITE TO EACH OTHER. ACCORDING TO CONSTRUCTION THERE ARE PROVIDED A LEVEL WOUND COIL, A PACKED PRODUCT OF THE LEVEL WOUND COIL, AND A METHOD FOR THE SUPPLY OF PIPE FROM THE LEVEL WOUND COIL, WHICH CAUSE NEITHER BREAKAGE, DEFORMATION, DEPRESSION, OR SCRATCHING OF THE PIPE NOR SLIP-OFF AND DISCOLORATION OF COILS EVEN IF UNCOILING IS PERFORMED BY ETS METHOD. IT IS SUITABLE TO SET THE NUMBER OF TURNS IN AN ODD-NUMBER LAYER OF COIL AND THAT IN AN EVENNUMBER LAYER OF COIL BOTH AT N (N IS A NATURAL NUMBER) AND SET THE VALUE OF W/M? AT 18.0 KG OR LESS, ASSUMING THAT THE NUMBER OF WINDING LAYERS IS M (M IS A NATURAL NUMBER), AN INTEGER VALUE OBTAINED BY DISCARDING DECIMAL FRACTIONS OF M/2 IS M?, AND THE MASS OF COIL IS W.(FIG 1)