Fastening member and rod-like member for fastening member
AssigneesNHK Spring Co., Ltd., Topura Co., Ltd.
InventorsToshio Kazama, Takeshi Suzuki, Shigeto Mori
Life of this patent
Estimating the term…
Abstract
A fastening member includes a first alloy portion and a second alloy portion. The first alloy portion is made of an aluminum alloy including 0.005 wt % to 5.0 wt % zinc and 0.6 wt % to 2.0 wt % magnesium and is provided to a part that comes into contact with at least one of a plurality of members serving as a fastening target. The second alloy portion is made of an aluminum alloy including more than 2.0 wt % and 5.0 wt % or less magnesium and more than 5.0 wt % and 10 wt % or less zinc and is joined to the first alloy portion.
Claims10
A fastening member for fastening a plurality of members, the fastening member comprising:
- a first alloy portion made of an aluminum alloy including 0.005 wt % to 5.0 wt % zinc and 0.6 wt % to 2.0 wt % magnesium and provided to a part that comes into contact with at least one of the members;
- and
- a second alloy portion made of an aluminum alloy including more than 2.0 wt % and 5.0 wt % or less magnesium and more than 5.0 wt % and 10 wt % or less zinc and joined to the first alloy portion.
A rod-like member for a fastening member, comprising:
- a core made of an aluminum alloy having a cylindrical shape and including more than 2.0 wt % and 5.0 wt % or less magnesium and more than 5.0 wt % and 10 wt % or less zinc;
- and
- an outer peripheral portion made of an aluminum alloy having a hollow cylindrical shape completely covering a side surface of the core and including 0.005 wt % to 5.0 wt % zinc and 0.6 wt % to 2.0 wt % magnesium.
A rod-like member for a fastening member, comprising:
- a core made of an aluminum alloy having a hollow cylindrical shape and including 0.005 wt % to 5.0 wt % zinc and 0.6 wt % to 2.0 wt % magnesium;
- and
- an outer peripheral portion made of an aluminum alloy having a hollow cylindrical shape completely covering a side surface of the core and including more than 2.0 wt % and 5.0 wt % or less magnesium and more than 5.0 wt % and 10 wt % or less zinc.
Dependencies are inferred from the claim text.