Wire drawing die
AssigneesSumitomo Electric Industries, Ltd., A.L.M.T. Corp.
InventorsKohei KURAMOTO, Takuya KINOSHITA, Kohichiroh KIMURA, Yutaka KOBAYASHI
Life of this patent
Estimating the term…
Abstract
A wire drawing die includes: a blank serving as a wear-resistant member provided with a die hole for performing a wire drawing process onto a wire material; and a die case that supports the blank. The blank has a thermal conductivity higher than a thermal conductivity of the die case. The blank has an upstream-side end surface and a downstream-side end surface in a wire drawing direction, the die hole is provided between the upstream-side end surface and the downstream-side end surface, and the downstream-side end surface is exposed from the die case.
Claims8
A wire drawing die comprising:
- a wear-resistant member provided with a die hole for performing a wire drawing process onto a wire material;
- and
- a die case that supports the wear-resistant member, wherein
- the wear-resistant member has a thermal conductivity higher than a thermal conductivity of the die case, and
- the wear-resistant member has an upstream-side end surface and a downstream-side end surface in a wire drawing direction, the die hole is provided between the upstream-side end surface and the downstream-side end surface, and the downstream-side end surface is exposed from the die case, and
- further comprising a cover provided with a through hole through which the wire material is able to pass, wherein the cover has a heat radiation member that is in contact with the wear-resistant member and that is provided with the through hole, and a supporting member that supports the heat radiation member, and the heat radiation member has a thermal conductivity higher than a thermal conductivity of the supporting member,
- wherein the heat radiation member includes at least one selected from a group consisting of diamond, CBN, and a composite material including diamond or CBN.
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Dependencies are inferred from the claim text.