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Wire drawing die and production method thereof

A wire drawing die and ceramic layer technology, applied in the direction of wire drawing die, metal wire drawing, metal drawing forming tools, etc., can solve the problems of demanding requirements, low production efficiency, and low bonding strength of coatings

Active Publication Date: 2015-04-22
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods have the disadvantages of demanding production equipment, low production efficiency, and low coating bonding strength.

Method used

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  • Wire drawing die and production method thereof
  • Wire drawing die and production method thereof
  • Wire drawing die and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Example 1: Preparation method of wire drawing die, the steps are as follows:

[0074] 1. Prepare a titanium plate 2 first, in which the purity of titanium should be controlled at 99.7%. The titanium plate 2 should be surface treated first, and the steps are as follows:

[0075] In the first step of pickling, 300ml / L hydrochloric acid is selected, and then rinsed with running water;

[0076] In the second step of pickling, 300ml / L hydrofluoric acid is used, followed by washing with running water;

[0077] In the third step, the surface is polished, using 800 mesh Al 2 O 3 Sandpaper, and finally ultrasonic cleaning with alcohol. The thickness of the titanium plate 2 is controlled at 1 mm.

[0078] 2. According to the size of the drawing die, use polystyrene foam to make the drawing die lost foam. According to the working force of the drawing die, the main wear is the strong friction between the inner hole of the drawing die and the metal to be processed. Fix the titanium plate o...

Embodiment 2

[0088] Example 2: Preparation method of wire drawing die, the steps are as follows:

[0089] 1. Prepare a titanium plate 2 first, in which the purity of titanium should be controlled at 99.8%. The titanium plate 2 should be surface treated first, and the steps are as follows:

[0090] The first step is pickling, 60ml / L phosphoric acid, followed by washing with running water;

[0091] The second step is pickling, 200ml / L sulfuric acid, followed by running water rinse;

[0092] The third step is surface polishing, using 1000 mesh Al 2 O 3 Sandpaper, and finally ultrasonic cleaning with alcohol. The thickness of the titanium plate 2 is controlled at 1.5 mm.

[0093] 2. According to the size of the drawing die, use polystyrene foam to make the drawing die lost foam. According to the working force of the drawing die, the main wear is the strong friction between the inner hole of the drawing die and the metal to be processed. A titanium plate is fixed on the working surface of the lost mol...

Embodiment 3

[0103] Embodiment 3: The preparation method of the drawing die, the steps are as follows:

[0104] 1. Prepare a titanium plate 2 first, in which the purity of titanium should be controlled at 99.8%, and the titanium plate 2 should be surface-treated first. The steps are as follows:

[0105] The first step is pickling, 120ml / L hydrogen peroxide, followed by running water rinse;

[0106] The second step is pickling, 240ml / L hydrogen peroxide, followed by running water rinse;

[0107] The third step is surface polishing, using 1200 mesh Al 2 O 3 Sandpaper, and finally ultrasonic cleaning with alcohol. The thickness of the titanium plate 2 is controlled at 2.5 mm.

[0108] 2. According to the size of the drawing die, use polystyrene foam to make the drawing die lost foam. According to the working force of the drawing die, the main wear is the strong friction between the inner hole of the drawing die and the metal to be processed. Fix the titanium plate 2 on the working surface of the lost...

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Abstract

The invention discloses a wire drawing die and a production method thereof. The surface of each of work positions of the wire drawing die is provided with a carbide coating. The work positions of the upper surface and the lower surface of the wire drawing die are respectively provided with the carbide coating. A quasi monocrystalline TiC dense ceramic layer, a micrometer TiC ceramic layer and a TiC-matrix composite layer are sequentially distributed in a gradient manner from outside to inside, and are applied to the surface of carbon steel. The carbide coating can be applied to the surface of the carbon steel. The carbide coating is formed on the surface of the above matrix through the cast matrix-titanium complex, the introduction of an external carbon source, heating and heat insulation, the coating and the matrix are metallurgically bonded, and the bonding force is very strong, so the problems of non-metallurgic bonding between present hard particles and the steel substrate, very weak bonding force and easy shedding of the particles are overcome, and the wear resistance of the work surfaces of the wire drawing die is greatly improved.

Description

Technical field [0001] The invention relates to a composite wire drawing die with a wear-resistant coating and a preparation method thereof, in particular to a composite wire drawing die with a wear-resistant carbide coating and a preparation method thereof, in particular to a wear-resistant carbonization applied to the surface of carbon steel Compound coating composite wire drawing die and preparation method thereof. Background technique [0002] In metal pressure processing, the metal is forced through the die under the action of external force, the cross-sectional area of ​​the metal is compressed, and the tool that obtains the required cross-sectional area shape and size is called a wire drawing die. In the metal product drawing industry, wire drawing dies are very important and consumable tools. Wire drawing dies are widely used, such as high-precision wires used in electronic devices, radar, television, instrumentation and aerospace, as well as commonly used titanium wires...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C3/02B21C3/18B22D19/08
CPCB21C3/02B21C3/18B22D19/085
Inventor 许云华赵娜娜梁淑华钟黎声卢正欣燕映霖叶芳霞任冰邹军涛肖鹏
Owner XIAN UNIV OF TECH
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