Titanium alloy tinned wire drawing die and manufacturing method thereof

Abstract

The invention discloses a titanium alloy tinned wire drawing die. The titanium alloy tinned wire drawing die comprises a die sleeve and a die core. The die core comprises a metal sintered block, a diamond particle and a gland. The die sleeve is a titanium alloy sleeve. The die sleeve is a cylinder, and the upper end of the die sleeve is open. An inlet conical hole forming an obtuse angle is formed at the center of the bottom of the die sleeve and used as the inlet end of the wire-drawing die. The metal sintered block is arranged at the bottom in the die sleeve. The gland is located on the top of the metal sintered block. A big-end-up outlet conical hole is formed at the center of the gland and used as the outlet end of the wire-drawing die. The diamond particle is embedded into the metal sintered block and located on the vertical center line of the die sleeve, deviates from the center point of the die sleeve and is close to the lower surface of the die sleeve. A die hole is formed in the center of the metal sintered block, and the die hole is an arc-shaped die hole. The invention further discloses a method for manufacturing the titanium alloy tinned wire drawing die. The titanium alloy tinned wire drawing die has the advantages that the die can be prevented from sinking in tin liquid and adhering to tin liquid, the drawing resistance is small, line breakage and bamboo joints are prevented, impurities can be rapidly discharged, the die core and the gland are not prone to disengagement, and the service life is prolonged.

Description

technical field [0001] The invention relates to a tinned wire drawing die, in particular to a titanium alloy tinned wire drawing die and a preparation method thereof. Background technique [0002] Tin-plating wire drawing dies are generally used in the tinning and drawing of non-ferrous metals. The metal wire passes through the tin pool filled with liquid tin, and passes through the tin-plating wire drawing die floating on the surface of the tin pool to achieve uniform tin plating. However, the relative density of the traditionally produced tin-plated wire drawing mold set is greater than the density of the tin liquid, and the density of the powder component metal of the metal sintered block is also greater than the density of the tin, so the mold is prone to sink and fall into the tin pool, which will bring adverse effects: if Picking up moulds, when the power is turned on, has potential safety hazards for the staff, but if the power is turned off to pick up the moulds, the...

AI Technical Summary

Problems solved by technology

In addition, the entrance angle of existing tin-plating wire drawing dies is generally less than 90°, and the entrance height is relatively large, which is not conducive to the rapid discharge of impurities at the entrance bell mouth. Disconnection and slub formation

Moreover, the existing tin-plated wire drawing die generally uses the end with the gland as the inlet port. During the drawing process, the mold sleeve will exert a large reaction force on the core and the gland, so that the gland and the core are easily removed from the mold sleeve. Falling off, greatly reducing the service life of the mold

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