Method for determining content of niobium, tantalum, phosphorus, manganese, silicon, aluminum and copper in ferroniobium alloy

A niobium-iron alloy and measurement method technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of platinum-gold crucible alloy single-element corrosion and undetectable problems, so as to ensure accuracy, high accuracy, and reduce occupational health hazards effect of factors

Inactive Publication Date: 2020-06-23
SGIS SONGSHAN CO LTD
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Problems solved by technology

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method for determining the content of niobium, tantalum, phosphorus, manganese, silicon, aluminum and copper in ferroniobium alloys, which has the characteristics of high analysis accuracy, fast analysis speed, and simultaneous analysis of multiple detection items; Effectively solves the problem that the platinum gold crucible is easily corroded by alloy elements and cannot be detected

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  • Method for determining content of niobium, tantalum, phosphorus, manganese, silicon, aluminum and copper in ferroniobium alloy
  • Method for determining content of niobium, tantalum, phosphorus, manganese, silicon, aluminum and copper in ferroniobium alloy
  • Method for determining content of niobium, tantalum, phosphorus, manganese, silicon, aluminum and copper in ferroniobium alloy

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[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] It is worth noting that the orientation words such as "up" and "down" involved in this article are all determined relative to the perspective of the drawings, and are only for the convenience of description, and cannot be understood as limitations on the technical solution.

[0030] see figure 1 , a method for determining the content of niobium, tantalum, phosphorus, manganese, silicon, aluminum and copper in ferroniobium alloys. The following components are selected in parts by weight, and the determination steps include:

[0031] S1: Crucible preparation, choose a platinum crucible, weigh 4-6 parts of lithium tetraborate, melt it in a high-frequency melting machine at 950°C or in a muffle furnace, and rotate the platinum crucible to evenly cover the inner wall of the platinum crucible with anhydrous lithium tetraborate , forming a protective...

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Abstract

The invention relates to a method for determining a content of niobium, tantalum, phosphorus, manganese, silicon, aluminum and copper in ferroniobium alloy. The method comprises the following steps: S1, manufacturing a crucible, selecting a platinum crucible, and forming a protective film on an inner wall of the platinum crucible; S2, drawing a ferroniobium analysis curve by utilizing a standard sample; and S3, determining an element content of a purchased production sample, putting a production determination glass fuse piece into an X-ray fluorescence spectrometer for determination, and comparing with the ferroniobium analysis curve in the step S2 to determine the content of each element in the production sample. The method has characteristics of high analysis precision, a high analysis speed, capability of simultaneously analyzing a plurality of detection items and the like; and a problem that a platinum gold crucible is easy to being corroded by alloy simple substance elements and cannot be detected is effectively solved.

Description

technical field [0001] The invention relates to the technical field of a metal detection method, in particular to a method for determining the content of niobium, tantalum, phosphorus, manganese, silicon, aluminum and copper in ferroniobium alloys. Background technique [0002] The main components of ferroniobium are ferroalloys of niobium and iron, which are mainly used for smelting high-temperature (heat-resistant) alloys, stainless steel and high-strength low-alloy steel. Niobium and oxygen in the steel form stable niobium oxide, which forms a niobium oxide film on the surface of the steel, which can prevent oxygen from diffusing into the interior and play an anti-oxidation role. Adding 0.015% to 0.05% Nb to carbon steel can refine the structure and make the steel have good formability and welding performance. Niobium has a strong inhibitory effect on the austenite recrystallization of steel, so that the steel can be effectively controlled rolling at a higher temperature...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/223G01N23/2202
CPCG01N23/223G01N23/2202
Inventor 王岩邢文青肖命冬曾赞喜吴超超黄波李世晶张幸英余雷王震刘红娣陆伟成
Owner SGIS SONGSHAN CO LTD
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