Radioactive substance container, manufacturing apparatus thereof and manufacturing method thereof

A method of manufacturing a manufactured container comprising:

• setting a metal billet having at least one plane on a side surface of the metal billet into a forming container with a gap between the metal billet and an inner wall of the forming container;
• forming an extended section which engages with an end portion of an inlet of the container by pressing a pressing backward side of the metal billet with a large punch having an outer diameter substantially equal with or larger than the outer diameter of the metal billet;
• and
• pushing a boring punch into the metal billet and bending the plane towards the inner wall so as to hot-dilate the metal billet to produce the manufactured product,
• wherein a body section of the forming container that mainly comes in contact with a lateral surface of the manufactured container is configured to move with respect to a bottom section of the forming container that mainly comes in contact with a bottom surface of the manufactured container.

A container manufacturing method comprising:

• setting a metal billet having at least a cross-section vertical to an axial direction on a pressing forward side, the cross-section being polygonal, into a forming container;
• forming an extended section which engages with an end portion of an inlet of the container by pressing a pressing backward side of the metal billet with a large punch having an outer diameter substantially equal with or larger than the outer diameter of the metal billet;
• and
• pushing a boring punch into the metal billet and hot-dilating the metal billet to produce a manufactured container,
• wherein a body section of the forming container that mainly comes in contact with a lateral surface of the manufactured container is configured to move with respect to a bottom section of the forming container that mainly comes in contact with a bottom surface of the manufactured container.

A container manufacturing method, wherein

• a metal billet having at least one plane on at least any one of a side surface on a pressing forward side of the metal billet and a side surface on a pressing backward side of the metal billet is set into a forming container,
• a large punch having an outer diameter substantially equal with or larger than the outer diameter of the metal billet presses a pressing backward side of the metal billet to form an extended section which engages with an end portion of an inlet of the container,
• a boring punch is pushed into the metal billet and the metal billet is hot-dilated to produce a manufactured container,
• a body section of the forming container that mainly comes in contact with a lateral surface of the manufactured container is configured to move with respect to a bottom section of the forming container that mainly comes in contact with a bottom surface of the manufactured container.

A method of manufacturing a container, comprising:

• setting a metal billet having at least one plane on a side surface of the metal billet into a forming container with a gap between the metal billet and an inner wall of the forming container;
• forming an extended section which engages with an end portion of an inlet of the container by pressing a pressing backward side of the metal billet with a large punch having an outer diameter substantially equal with or larger than the outer diameter of the metal billet;
• and
• pushing a boring punch into the metal billet to penetrate the boring punch through the whole thickness of the extended section and bending the plane towards the inner wall so as to hot-dilate the metal billet, to make an outer diameter of a bottom portion of the metal billet equal to an outer diameter of a top portion of the metal billet before the step of pushing the metal billet.

A method of manufacturing a container, comprising:

• setting a metal billet having at least one plane on a side surface of the metal billet into a forming container with a gap between the metal billet and an inner wall of the forming container;
• forming an extended section which engages with an end portion of an inlet of the container by pressing a pressing backward side of the metal billet with a large punch having an outer diameter substantially equal with or larger than the outer diameter of the metal billet;
• and
• pushing a boring punch into the metal billet and bending the plane towards the inner wall so as to hot-dilate the metal billet to produce a manufactured container,
• wherein a body section of the forming container that mainly comes in contact with a lateral surface of the manufactured container is configured to move with respect to a bottom section of the forming container that mainly comes in contact with a bottom surface of the manufactured container.

A method of manufacturing a container, comprising:

• setting a metal billet having at least a cross-section vertical to an axial direction on a pressing forward side, the cross-section being polygonal, into a forming container;
• forming an extended section which engages with an end portion of an inlet of the container by pressing a pressing backward side of the metal billet with a large punch having an outer diameter substantially equal with or larger than the outer diameter of the metal billet;
• and
• pushing a boring punch into the metal billet so as to hot-dilate the metal billet,
• wherein a body section of the forming container that mainly comes in contact with a lateral surface of the manufactured container is configured to move with respect to a bottom section of the forming container that mainly comes in contact with a bottom surface of the manufactured container.

A method of manufacturing a container, comprising:

• setting a metal billet, where at least one plane is provided on at least any one of a side surface of a pressing forward side of the metal billet and a side surface of a pressing backward side of the metal billet, into a forming container;
• forming an extended section which engages with an end portion of an inlet of the container by pressing a pressing backward side of the metal billet with a large punch having an outer diameter substantially equal with or larger than the outer diameter of the metal billet;
• and
• pushing a boring punch into the metal billet so as to hot-dilate the metal billet to produce a manufactured container,
• wherein a body section of the forming container that mainly comes in contact with a lateral surface of the manufactured container is configured to move with respect to a bottom section of the forming container that mainly comes in contact with a bottom surface of the manufactured container.