LOW-SPREAD METAL ELONGATED BOTTLE AND PRODUCTION METHOD

摘要

A low-spread metal elongated bottle (100) and its production method are described for reducing rejection rates associated with the production of metal bottles at high speeds. The elongated bottle (100) includes a sheet metal formed body. The sheet metal (101) has a low spread between a yield state corresponding to the yield stress of the sheet metal and an ultimate tensile state corresponding to the ultimate tensile stress of the sheet metal(101). The body further includes a concave bottom portion (115) having a circular perimeter (117). A cylindrical portion (110) extends from the circular perimeter of the bottom portion (117) and has a uniform diameter. A neck portion (105) extends from the cylindrical portion (110) and has a tapered profile (107). The neck portion (105) may include a threaded portion (120) including threads exposed on the outer surface of the neck portion (105) or an area for crimping of a crown (300).