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A kind of preparation method of niobium zirconium 10 alloy

A niobium-zirconium and alloy technology is applied in the field of preparation of niobium-zirconium 10 alloy, which can solve the problems of difficult to obtain accurate composition and uniform distribution of niobium-zirconium alloy, and achieve the effects of accurate composition, improved alloy hardness and uniform distribution

Active Publication Date: 2015-10-28
BAOJI TIANBO METAL MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing niobium-zirconium 10 alloy, which solves the problem that the existing preparation method is difficult to obtain a niobium-zirconium alloy with accurate composition and uniform distribution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0015] The preparation method of the niobium-zirconium 10 alloy of the present invention is specifically implemented according to the following steps:

[0016] Step 1, weighing 9.5-10.5% atomic level zirconium sponge and 89.5-90.5% hydrogenated-dehydrogenated niobium powder according to weight percentage, the sum of the weight percentages of the above components is 100%;

[0017] Step 2, pressing the hydrogenated-dehydrogenated niobium powder weighed in step 1 into an electrode, purifying it, and melting it into a niobium ingot in a vacuum consumable electric arc furnace;

[0018] Step 3, removing impurities from the atomic-level zirconium sponge weighed in step 1, cleaning, vacuum drying, purifying, forming ingots, and then forging, hot rolling, and cold rolling into zirconium plates;

[0019] Step 4: Cut the zirconium plate obtained in step 3 into a zirconium strip with the same length as the niobium ingot obtained in step 2, then attach the zirconium strip to the niobium in...

Embodiment 1

[0023] Step 1, weigh 300g (10%) atomic level zirconium sponge and 2700g (90%) hydrogenation-dehydrogenation niobium powder respectively;

[0024] Step 2, pressing the hydrogenated-dehydrogenated niobium powder weighed in step 1 into an electrode, purifying it, and melting it into a niobium ingot in a vacuum consumable electric arc furnace;

[0025] Step 3, removing impurities from the atomic-level zirconium sponge weighed in step 1, cleaning, vacuum drying, purifying, forming ingots, and then forging, hot rolling, and cold rolling into zirconium plates;

[0026] Step 4: Cut the zirconium plate obtained in step 3 into a zirconium strip with the same length as the niobium ingot obtained in step 2, then attach the zirconium strip to the niobium ingot, and then place the zirconium strip in a vacuum-filled argon welding box. The bars are welded together with niobium ingots to make niobium-zirconium composite ingots;

[0027] Step 5, melt the niobium-zirconium composite ingot obtai...

Embodiment 2

[0029] Step 1, weigh 315g (10.5%) atomic level zirconium sponge and 2685g (89.5%) hydrogenated-dehydrogenated niobium powder respectively;

[0030] Step 2, pressing the hydrogenated-dehydrogenated niobium powder weighed in step 1 into an electrode, purifying it, and melting it into a niobium ingot in a vacuum consumable electric arc furnace;

[0031] Step 3, removing impurities from the atomic-level zirconium sponge weighed in step 1, cleaning, vacuum drying, purifying, forming ingots, and then forging, hot rolling, and cold rolling into zirconium plates;

[0032] Step 4: Cut the zirconium plate obtained in step 3 into a zirconium strip with the same length as the niobium ingot obtained in step 2, then attach the zirconium strip to the niobium ingot, and then place the zirconium strip in a vacuum-filled argon welding box. The bars are welded together with niobium ingots to make niobium-zirconium composite ingots;

[0033] Step 5, melting the niobium-zirconium composite ingot ...

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Abstract

The invention provides a preparation method for a niobium zirconium 10 alloy. The preparation method comprises the following steps: compacting 89.5 to 90.5% of hydrogenized-dehydrogenized niobium powder to obtain an electrode, purifying the electrode and melting the electrode in a consumable vacuum arc furnace so as to obtain a niobium ingot; successively subjecting 9.5 to 10.5% of atomic energy-level zirconium sponge to impurity removal, cleaning, vacuum drying, purification and formation of an ingot and then carrying out forging, hot rolling and cold rolling on the ingot to obtain a zirconium plate; cutting the zirconium plate into a zirconium strip with same length as the niobium ingot, tightly bonding the zirconium strip on the niobium ingot and welding the zirconium strip and the niobium ingot together in a vacuum argon-filled welding case so as to prepare a niobium-zirconium composite ingot; and fusing the niobium-zirconium composite ingot to form an electrode and carrying out melting twice and cooling so as to obtain the niobium zirconium 10 alloy. According to the invention, the zirconium strip is tightly bonded on the niobium ingot in the vacuum argon-filled welding case to prepare the niobium-zirconium composite ingot, the niobium-zirconium composite ingot then undergoes melting twice and cooling, so the obtained niobium zirconium 10 alloy has zirconium content of 9.5 to 10.5 (wt%), components of the alloy are accurate and uniformly distributed, and alloy hardness is improved.

Description

technical field [0001] The invention belongs to the technical field of alloy material preparation, and relates to a method for preparing a niobium-zirconium 10 alloy. Background technique [0002] Niobium-zirconium alloy is an alloy formed by adding zirconium to niobium. Adding zirconium to niobium can increase the strength of the alloy without affecting the plasticity and processing properties of the alloy. Zirconium can also improve the oxidation resistance and alkali metal corrosion performance of the alloy, making it Excellent processing and welding performance, more widely used in aerospace, aviation industry and other applications. [0003] The Chinese patent "New Process for Preparation of Niobium-Zirconium 10 Alloy" (Application No.: 201010174751.7, Publication No.: CN101831565A, Publication Date: 2010.09.15) discloses a preparation method of Niobium-Zirconium 10 Alloy, mainly through hydrogenation after alloying and dehydrogenation treatment, and finally isostatic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22B9/20C22C27/02
Inventor 姚建军
Owner BAOJI TIANBO METAL MATERIAL