Preparation method of composite liner

A technology of medicine type cover and alloy powder, applied in the direction of metal material coating process, coating, etc., can solve the problems of complex equipment structure, slow single-piece production speed, uneven distribution, etc., achieve excellent comprehensive mechanical properties, and solve deposition problems. The effect of slower speed and a wide range of material systems

Inactive Publication Date: 2015-09-16
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor bonding effect, the brazing method is rarely used at present
The performance of the liner manufactured by the explosive composite-spinning process is not uniform, there are obvious texture phenomena, and the equipment structure is complex and the cost is high
CN101628335A discloses an automatic spinning device for a perforating bullet energy-collecting cover. The device is composed of an upper mold and a lower mold installed on a hydraulic press. The structure is complex, and the assembly accuracy is difficult to ensure. Poor, uneven distribution
However, the production speed of a single piece is relatively slow, such as electroforming a product with a thickness of 1 mm, it takes 3 to 4 hours for a simple shape, and dozens of hours for a complex shape
CN1410600A discloses a manufacturing process and device for the electroforming of a drug mask, which uses the principle of cathodic electrodeposition to prepare the drug mask, and its deposition speed is relatively slow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of a composite drug-type cover, the surface of the TC4 titanium alloy drug-type cover is clad with TA15 titanium alloy+TiC, and the specific steps are as follows:

[0026] Step 1. Pretreat the TC4 titanium alloy drug-type cover to remove oil, grease, rust and dust;

[0027] Step 2, select 70wt% TA15 + 30wt% TiC alloy powder spherical powder with a particle size between 80 and 100 meshes, and mix evenly;

[0028] Step 3. Spread the alloy powder described in step 2 evenly on the outside of the drug-type cover, and at the same time pass TJ-HL-T5000 continuous cross-flow CO in the argon protective atmosphere. 2 The laser realizes the cladding of the material; in order to achieve the metallurgical combination of the liner and the alloy powder, a composite liner is obtained. The specific process parameters are as follows: laser power 1.7KW, lap rate 1.2mm, scanning speed 2mm / s for the first layer, 3mm / s for the second layer and above, a total of 4 claddi...

Embodiment 2

[0030] A preparation method of a composite drug-type cover, the surface of the TC4 titanium alloy drug-type cover is clad with TA15+Cr 3 C 2 ,Specific steps are as follows:

[0031] Step 1. Pretreat the TC4 titanium alloy drug-type cover to remove oil, grease, rust and dust;

[0032] Step 2. Select 80wt% TA15+20wt% Cr with a particle size between 80 and 100 mesh 3 C 2 Alloy spherical powder, mixed evenly;

[0033] Step 3. Spread the alloy powder described in step 2 evenly on the outside of the drug-type cover, and at the same time pass TJ-HL-T5000 continuous cross-flow CO in the argon protective atmosphere. 2 The laser realizes the cladding of the material; in order to achieve the metallurgical combination of the liner and the alloy powder, a composite liner is obtained. The specific process parameters are as follows: laser power 1.5KW, lap rate 1.2mm, scanning speed 2mm / s for the first layer, 3mm / s for the second layer and above, 4 layers of cladding in total, and the to...

Embodiment 3

[0035] A method for preparing a composite drug-type cover, the surface of the tantalum drug-type cover is clad with nickel, and the specific steps are as follows:

[0036] Step 1. Pretreat the tantalum drug-type cover to remove oil, grease, rust and dust;

[0037] Step 2, select pure nickel metal spherical powder with a particle size between 100 and 200 meshes to preheat and set aside;

[0038] Step 3. Spread the metal powder described in step 2 evenly on the outside of the liner, and at the same time use the ZGM-SD pulse laser to achieve material cladding; to achieve the metallurgical combination of the liner and the metal powder to obtain a composite liner . The specific process parameters are as follows: the current is 400A, the laser frequency is 6Hz, the laser pulse width is 3.5ms, and the scanning speed is 1mm / s. There are 4 cladding layers in total, and the total thickness of the cladding layer is 1mm.

[0039] Dynamic compression experiments were carried out on the T...

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Abstract

The invention relates to a preparation method of a composite liner, belonging to the field of composite liners. According to the preparation provided by the invention, metal or alloy powder is uniformly spread on the outer side of a liner by laser cladding while the material cladding is realized through a laser; or after the metal or alloy powder is uniformly spread on the outer side of the liner, the material cladding is realized through a laser so as to realize metallurgical bonding of the liner and the metal or alloy powder to obtain the composite liner. The problems of the existing composite liner preparation technology are perfectly solved. According to the preparation method provided by the invention, the production cost is reduced while the liner performance is guaranteed, and the thickness of the composite liner can be controlled.

Description

technical field [0001] The invention relates to a preparation method of a compound medicine-shaped cover, which belongs to the field of the compound medicine-shaped cover. Background technique [0002] There are two basic types of liner covers, one is a conical liner with an angle of less than 70°, and the other is a disk-shaped or spherical liner with an angle greater than 120°. The cone-shaped liner is suitable for attacking thick armor targets, while the disc or spherical liner is suitable for attacking thinner armor targets such as tank top armor and warships. The reason why the drug-shaped cover can penetrate armor is due to the energy-gathering effect produced after the explosion of the explosive. When the shock wave generated by the explosive explosion reaches the liner, it will have a strong compression effect on the metal. Under the action of the shock wave, the metal micro-elements move rapidly toward the axis to form a metal jet (speed up to 1000m / s-3000m / s). ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
Inventor 王琳闫春洋王东源
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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