Preparation method of shaped charge liner tantalum 5 tungsten material

A drug-type cover and blank technology, which is applied in the direction of explosive charges, offensive equipment, weapon accessories, etc., can solve the problems of poor plate homogeneity, uneven grain size, large-sized grains, etc.

Active Publication Date: 2015-07-22
NINGXIA ORIENT TANTALUM IND
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology is mainly based on flattening forging and rolling in vertical, horizontal and vertical directions. This process has the following disadvantages: 1. The grain size is not uniform, and there are large grains; 2. The isotropy of the final plate is relatively small. Difference

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of shaped charge liner tantalum 5 tungsten material
  • Preparation method of shaped charge liner tantalum 5 tungsten material
  • Preparation method of shaped charge liner tantalum 5 tungsten material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] A kind of preparation method of tantalum 5 tungsten material of drug type cover, comprises the following steps:

[0028] A), the tantalum 5 tungsten ingot is hot forged three times, the way of the hot forging is axial thickening and radial elongation, the upsetting ratio of the axial thickening is 1.5-2.0, and the radial The draw length ratio is 0.8-1.0; the tantalum 5 tungsten billet after three hot forgings is annealed;

[0029] B), rolling the annealed tantalum 5 tungsten billet, the processing rate of the rolling is 70% to 85%;

[0030] C), performing annealing treatment on the tantalum 5 tungsten blank obtained in step B) to obtain the tantalum 5 tungsten material of the medicine-shaped cover.

[0031] According to the present invention, in the process of preparing tantalum-tungsten material, it is first necessary to provide a tantalum-tungsten ingot, which can be obtained by electron beam melting. special restrictions.

[0032] In the present invention, first, ...

Embodiment 1

[0042] 1) The tantalum 5 tungsten ingot is obtained by electron beam melting. The diameter of the tantalum 5 tungsten ingot is Φ153mm and the length is 320mm. The composition of the tantalum 5 tungsten ingot is shown in Table 1. ingredient data sheet;

[0043] Table 1 Elemental composition data table of tantalum 5 tungsten ingot

[0044]

[0045] 2) Ultrasonic detection of the tantalum 5 tungsten ingot obtained in step 1), and then heating the tantalum 5 tungsten ingot to 200°C in a resistance furnace, and coating high temperature glass powder;

[0046] 3) Heat the tantalum 5 tungsten ingot obtained in step 2) to 1250℃~1300℃, axially upset to H=200±5mm, and then axially elongate to (145±5)×(145±5)×Lmm , cycle three times, then flatten and forge to δ=55±2mm to ensure uniform width, temperature detection is carried out during the forging process, and the forging temperature during the whole forging process is not lower than 850°C;

[0047] 4) pickling the tantalum 5 tungste...

Embodiment 2

[0056] 1) The tantalum 5 tungsten ingot is obtained by electron beam melting. The diameter of the tantalum 5 tungsten ingot is Φ153mm and the length is 210mm. The composition of the tantalum 5 tungsten ingot is shown in Table 3. ingredient data sheet;

[0057] Table 3 Elemental composition data table of tantalum 5 tungsten ingot

[0058]

[0059] 2) Ultrasonic detection of the tantalum 5 tungsten ingot obtained in step 1), and then heating the tantalum 5 tungsten ingot to 200°C in a resistance furnace, and coating high temperature glass powder;

[0060] 3) Heat the tantalum 5 tungsten ingot obtained in step 2) to 1200℃~1250℃, axially upset to H=135±5mm, and then axially elongate to (130±5)×(130±5)×Lmm , cycle three times, then flatten and forge to δ=40±2mm to ensure uniform width, temperature detection is carried out during the forging process, and the forging temperature during the whole forging process is not lower than 850°C;

[0061] 4) pickling the tantalum 5 tungste...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Tensile strengthaaaaaaaaaa
Yield strengthaaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention provides a preparation method of a shaped charge liner tantalum 5 tungsten material. The preparation method comprises the following steps: A) performing hot forging on a tantalum 5 tungsten cast ingot for three times, wherein a hot forging way is axial upsetting and radial stretching, the upsetting ratio of the axial upsetting is 1.5-2.0, and the stretching ratio of the radial stretching is 0.8-1.0; performing annealing treatment on a tantalum 5 tungsten blank subjected to the hot forging for three times; B) rolling the tantalum 5 tungsten blank subjected to the annealing treatment, wherein the processing rate of rolling is 70-85 percent; C) performing annealing treatment on the tantalum 5 tungsten blank obtained in the step B) to obtain the shaped charge liner tantalum 5 tungsten material. In the process of preparing the tantalum 5 tungsten material, the grain structure inside the prepared tantalum 5 tungsten material is small by adopting the processing methods of the hot forging for three times and the rolling and through controlling parameters in forging and rolling processes, and all mechanical properties are uniform.

Description

technical field [0001] The invention relates to the technical field of metal materials, in particular to a method for preparing a tantalum-5-tungsten material for a medicine-shaped cover. Background technique [0002] The Explosively Formed Penetrator (EFP) warhead is a penetrator with high center-of-mass velocity and structural shape that is forged by using the principle of shaped charge to crush and deform the metal liner by the shaped-energy explosive bombardment of explosives. ; And the drug-shaped cover is lined in the cavity of the hollow charge, and after the explosive explodes, it is compressed into a metal jet for armor-piercing special material parts. Therefore, the material used for the warhead liner must have good dynamic ductility and tensile strength in order to form an EFP warhead with a certain length-to-diameter ratio. [0003] At present, the metal materials suitable for making the EFP warhead liner cover mainly include: copper, pure iron, tantalum, tantal...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C22F1/18
CPCF42B1/032C22F1/18
Inventor 汪凯张亚军郑爱国李桂鹏任晓同磊李小平李积贤朱军黄浩马小文
Owner NINGXIA ORIENT TANTALUM IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap