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Wire drawing die

A wire drawing die and die technology, applied in the direction of wire drawing dies, etc., can solve the problems of large wear in the die exit area, simple internal structure, division, etc., and achieve the effects of improving precision and stability, increasing stability, and reducing wear

Active Publication Date: 2014-06-04
柳城县鼎铭金属制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the mold structure used in the wire and pipe industry is single, the inlet angle and outlet angle are rough in design, and the internal structure is simple, and the division of functional areas cannot be accurately realized. Therefore, in the production of high-end alloy steel, stainless steel and high-strength microwires, for 1.0mm The production of the above wire diameter products can barely meet the requirements, but for the production of 0.1mm and 0.01mm grade microwires, the wire diameter of the microwires cannot be precisely controlled, which is far from meeting the requirements of wire diameter accuracy and stability
The Chinese patent with the authorized announcement number CN201283371Y discloses a linear metal wire drawing die. Although the patent is not easy to break the wire; but because the inner hole of the patent is only divided into four functions: the entrance area, the compression area, the sizing area, and the exit area. area, still cannot accurately control the wire diameter of the microwire, and cannot meet the requirements of wire diameter accuracy and stability, and is still not suitable for the production of 0.1mm and 0.01mm microwires, and the wear on the mold exit area is still relatively large

Method used

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  • Wire drawing die

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A micro wire drawing die (see figure 1 ), the mold includes a mold body 1, a transparent mold hole 2 is provided on the mold body 1, the inner wall of the mold hole 2 is coated with a tungsten carbide coating, and the microwire passes through the mold hole 2 when drawing; The said die hole 2 is provided with three working areas at the inlet end: a tapered inlet area 21, a lubrication area 22 and a compression area 23. The inlet area 21, the lubrication area 22 and the compression area 23 are connected in turn by an arc, and the inlet The cone angles of the zone 21, the lubrication zone 22 and the compression zone 23 are successively reduced; the outlet end of the die hole 2 is also provided with two working areas, a conical decompression zone 25 and an outlet zone 26, respectively. 25 and the outlet area 26 are connected by a circular arc, and the taper angles of the decompression area 25 and the outlet area 26 increase sequentially; the die hole between the compres...

Embodiment 2

[0030] A micro wire drawing die (see figure 1 ), the basic structure of the mold is the same as the first embodiment, the difference is: the cone angle and length parameters of each working area of ​​the mold hole are different, that is: the cone angle α of the inlet area 21 is 40°, the cone angle β of the lubrication zone 22 is 30°, the cone angle γ of the compression zone 23 is 10°, the cone angle δ of the decompression zone 25 is 10°, and the cone angle η of the outlet zone 26 is 20°; The length L1 of the inlet zone 21 is 4D, the length L2 of the lubrication zone 22 is 2.5D, the length L3 of the compression zone 23 is 2D, the length L4 of the sizing zone 24 is 25D, and the length L5 of the decompression zone 25 is 2.5D. The length L6 of the zone 26 is 6D, where D is the diameter of the sizing zone 24.

Embodiment 3

[0032] A micro wire drawing die (see figure 1 ), the basic structure of the mold is also the same as the first embodiment, the difference is: the cone angle and length parameters of each working area of ​​the mold hole are different, that is: the cone angle α of the inlet area 21 is 70°, the cone angle β of the lubrication zone 22 is 60°, the cone angle γ of the compression zone 23 is 40°, the cone angle δ of the decompression zone 25 is 35°, and the cone angle η of the outlet zone 26 is 50°; The length L1 of the inlet zone 21 is 5D, the length L2 of the lubrication zone 22 is 3D, the length L3 of the compression zone 23 is 2.5D, the length L4 of the sizing zone 24 is 30D, and the length L5 of the decompression zone 25 is 3D. The length L6 of 26 is 6.5D, and the D is the diameter of the sizing zone 24.

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Abstract

A wire drawing die relates to metal material processing dies and comprises a die body. The die body is provided with a die hole, and a tungsten carbide coating layer is coated on the inner wall of the die hole. An inlet area, a lubricating area and a compressing area which are all taper-shaped are respectively arranged at an inlet end of the die hole and in circular-arc connection sequentially, and taper angles of the inlet area, the lubricating area and the compressing area are reduced sequentially. A pressure releasing area and an air outlet area which are taper-shaped are respectively arranged at an outlet end of the die hole and are in circular-arc connection sequentially, and taper angles of the pressure releasing area and the outlet area are increased sequentially. A cylindrical sizing area is formed between the compressing area and the pressure releasing area of the die hole, and is in circular-arc connection with the compressing area and the pressure releasing area sequentially. Since the die hole is divided into multiple angles and multiple work areas, abrasion to the die is reduced during wire drawing, while the wire drawing die has the advantages of high precision and stability and can be applicable to production of wires at the levels of 0.1mm and 0.01mm.

Description

Technical field [0001] The invention relates to a metal material processing die, in particular to a microwire drawing die. Background technique [0002] At present, the mold structure used in the wire and tube industry is single, the inlet angle and outlet angle are rough in design, and the internal structure is simple, which cannot accurately realize the division of functional areas. Therefore, in the production of high-end alloy steel, stainless steel and high-strength micro-wires, 1.0mm The production of the above wire diameter products can barely meet the requirements, but for the production of 0.1mm and 0.01mm microwires, the diameter of the microwires cannot be accurately controlled, which is far from meeting the requirements of wire diameter accuracy and stability. The Chinese patent with the authorization announcement number CN201283371Y discloses a linear metal drawing die. Although the patent is not easy to break the wire; but because the inner hole of the patent is onl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C3/02
Inventor 张瑞杰
Owner 柳城县鼎铭金属制品有限公司