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Dehydrogenation modifier-molybdenum-based alloy additive for refining zirconium

A molybdenum-based alloy and modifier technology, applied in the field of zirconium alloys, can solve the problems that the toughness, strength and hardness of zirconium cannot be significantly improved, the process is complicated, and the processing cost is high.

Inactive Publication Date: 2012-07-11
曹传新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process is complicated, the processing cost is high, and the inclusions in zirconium cannot significantly improve the toughness, strength, hardness, etc. of zirconium.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Ingredients: metal molybdenum 250kg, aluminum metal 50kg, waste zirconium 190kg. These raw materials are put into an intermediate frequency furnace to be melted and synthesized, and the composition of the composite alloy is:

[0011] element Mo Al Zr C S P quality% 48.51 9.36 41.32 0.77 0.02 0.02

[0012] Specific gravity 7.82g / cm 3 , melting point 1560°C.

Embodiment 2

[0014] In order to increase the effective components of the composite alloy while maintaining a large specificity and a high melting point, ferromanganese is used to replace the waste zirconium in Implementation 1.

[0015] Ingredients: metal molybdenum 200kg, aluminum metal 25kg, manganese zirconium (ZrMn70). Drop into the electric furnace melting synthesis among the embodiment 1. Its composite alloy composition:

[0016] element Mo Al mn Zr C S P quality% 38.63 4.81 36.23 19.17 1.08 0.04 0.04

[0017] Specific gravity 7.65g / cm 3 , Melting point 1550°C.

Embodiment 3

[0019] In order to reduce the cost of the alloy of the present invention, silicon-containing zirconium is used, and aluminum-magnesium-iron-silicon alloy is used instead of aluminum metal. In addition to a certain amount of silicon, aluminum-magnesium-iron-silicon alloy also contains trace amounts of nickel, calcium, magnesium, manganese and so on. The raw material aluminum-magnesium-silicon-iron alloy composition is selected.

[0020] Ingredients: metal molybdenum 175kg, aluminum magnesium silicon zirconium alloy 250kg, waste zirconium 75kg. Throw in the electric furnace of embodiment 1 and melt and synthesize. Its composite alloy composition:

[0021] element Mo Al Mg Si Ca Ge mn Zr C S P quality% 34.18 9.12 3.86 20.73 1.48 0.91 1.63 27.41 0.6 0.04 0.04

[0022] Specific gravity 7.41g / cm 3 , melting point 1510°C.

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Abstract

The invention relates to a zirconium alloy, in particular to a molybdenum-based alloy additive, a dehydrogenation modifier, used for refining zirconium. The molybdenum-based alloy additive is prepared by the following raw materials by weight percentages: 20.5-70.3% of molybdenum, 0.9-30.5% of aluminum, and the balance of zirconium and unavoidable impurities. The preparation method of the invention comprises: selecting and confecting raw materials according to the component requirements of the molybdenum-based composite alloy, feeding the raw materials into a melting furnace according to the proportion, and then smelting. In comparison with the existing technical scheme, the technical scheme of the invention has the following advantages: a purification function and a obvious modification function are brought into the zirconium during the zirconium smelting and dehydrogenation process, so that the quality of zirconium is improved.

Description

technical field [0001] The invention relates to zirconium alloys, in particular to a dehydrogenation modifier-molybdenum-based alloy additive for refining zirconium. Background technique [0002] At present, when dehydrogenating zirconium, a dehydrogenating agent is added, and a modifying agent is added to change the inclusions in zirconium. The dehydrogenation element in zirconium refining is mainly molybdenum, and the zirconium liquid modifier aluminum is one of the effective elements. It can dehydrogenate and desulfurize when added to zirconium, and can change the shape and distribution of inclusions. There is purification and obvious deterioration in zirconium. effect. However, the process is complicated, the processing cost is high, and the inclusions in zirconium cannot significantly improve the toughness, strength, and hardness of zirconium. Contents of the invention [0003] The purpose of the present invention is to provide a dehydrogenation modifier-molybdenum-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B34/14C22B9/10
Inventor 曹传新
Owner 曹传新
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