Scale-style micro-texture electrode wire material and preparation method therefor and use thereof

A use of an electrode wire material, wherein, the electrode wire material has a scale-style micro-texture layer on the surface, and the electrode wire material comprises:

• i) an alloy substrate layer as an inner layer;
• ii) an interdiffusion layer as an intermediate layer;
• iii) a plating layer as an outer layer;
• and a contact angle of the electrode wire material to a cooling liquid is 105 to 150°;
• the intermediate layer has a thickness of 10 to 30 μm;
• the outer layer has a thickness of 2 to 10 μm;
• the intermediate layer is continuous;
• the outer layer is discontinuous;
• wherein in the electrode wire material, a content of Zn gradually decreases from an outside to an inside in a radial direction;
• wherein a content of Zn of the interdiffusion layer is 43.15 wt % to 64.56 wt %, a content of Zn of the alloy substrate layer is less than 43.15 wt %, and a content of Zn of the plating layer is more than 64.56 wt %;
• wherein the electrode wire material is prepared as follows:
• 1) providing a plated electrode wire, and heat-treating the plated electrode wire to obtain a heat-treated electrode wire;
• 2) drawing the heat-treated electrode wire obtained in step 1) to obtain a drawn electrode wire;
• and
• 3) annealing the drawn electrode wire obtained in step 2) to obtain the electrode wire material;
• in step 1), the heat treatment is carried out at a heat treatment temperature of 550 to 850° C.,
• the use is for performing fine cutting.

An article, wherein the article comprises an electrode wire material or is made of the electrode wire material,

• wherein the electrode wire material has a scale-style micro-texture layer on the surface, and the electrode wire material comprises:
• i) an alloy substrate layer as an inner layer;
• ii) an interdiffusion layer as an intermediate layer;
• iii) a plating layer as an outer layer;
• and a contact angle of the electrode wire material to a cooling liquid is 105 to 150°;
• the intermediate layer has a thickness of 10 to 30 μm;
• the outer layer has a thickness of 2 to 10 μm;
• the intermediate layer is continuous;
• the outer layer is discontinuous;
• wherein in the electrode wire material, a content of Zn gradually decreases from an outside to an inside in a radial direction;
• wherein a content of Zn of the interdiffusion layer is 43.15 wt % to 64.56 wt %, a content of Zn of the alloy substrate layer is less than 43.15 wt %, and a content of Zn of the plating layer is more than 64.56 wt %;
• wherein the electrode wire material is prepared as follows:
• 1) providing a plated electrode wire, and heat-treating the plated electrode wire to obtain a heat-treated electrode wire;
• 2) drawing the heat-treated electrode wire obtained in step 1) to obtain a drawn electrode wire;
• and
• 3) annealing the drawn electrode wire obtained in step 2) to obtain the electrode wire material;
• in step 1), the heat treatment is carried out at a heat treatment temperature of 550 to 850° C.