Spectrum standard sample for detecting coin-manufacturing non-corrosive steel and its manufacture method

A spectroscopic standard sample and stainless steel technology, which is applied to the detection of spectral standard samples of coinage stainless steel and its manufacturing field, can solve the problems of undetectable anti-counterfeiting element B, narrow application range, and unsatisfactory element content distribution, and achieves a wide combined content range. , Good uniformity, reasonable design effect

Inactive Publication Date: 2008-03-26
CHINA BANKNOTE PRINTING & MINTING
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Problems solved by technology

By searching relevant patents and documents at home and abroad, the relevant British stainless steel spectral standard samples, Japanese relevant stainless steel spectral standard samples and domestic GBW01605-01609 Cr13 spectral standard samples, GSBA68001-68007 stainless steel spectral standard samples, and GSBH400115-1996 stainless steel spectral standard samples The standard samples were compared and analyzed, and it was found that the above spectral standard samples had the following points that were not suitable for the analysis of domes

Method used

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Examples

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Example Embodiment

[0025] Example 1: According to the weight % of the component content: carbon element is less than 0.02, silicon 0.06, manganese 0.15, phosphorus less than 0.01, sulfur 0.006, nickel 0.70, copper 0.06, chromium 19.0, boron 0.0008, and iron balance to calculate the raw material pure iron , Electrolytic copper, electrolytic nickel, electrolytic manganese and pure copper are added to the vacuum induction smelting furnace, the capacity is 100 kg, the power is 100KW, and 60% power is supplied for 6-8 minutes after the power is turned on. After the current impact stops, the power is gradually increased to The maximum value, ramming at any time with the melting of the charge. When the charge is 95% melted, take a sample for full analysis, adjust the chemical composition of the molten steel according to the analysis results, adjust the content of manganese and chromium with ferromanganese, ferrochromium, and adjust the carbon content with pig iron, graphite electrode fragments, and coke...

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Abstract

The invention relates to a kind of stainless steel spectrum standard sample, especially the spectrum standard sample used to detect the coinage stainless steel and the manufacturing method. It computes the each material additive quantity according to the formula based on the impurity element C, Si, Mn, P, S and additive element B, Ni, Cu, Cr; Fe is the base material. The material is added into the vacuum induction smelting furnace to cast. When the material is smelted to 95%, the sample is analyzed; then it adjust the steel liquid chemical component according to the analyzing result; it adjusts the Si content using the ferrosilicium when 7-10min before tapping; the ferroboron is pre-added into the steel ingot mould; after each element meeting the request, it controls the tapping temperature: 1520-1540deg.C, the steel liquid is poured into the steel ingot mould, after cooling, the sample number is printing on. The spectrum standard has the good uniformity, wide compound content and many element kinds; the process is advance and the value is accurate; the content grads are in reason. So it is better than the other same sample in analyzing the coinage stainless material.

Description

technical field [0001] The invention relates to a stainless steel spectrum standard sample, in particular to a spectrum standard sample used for detecting coinage stainless steel and a manufacturing method thereof. Background technique [0002] Coins made of stainless steel not only have a certain degree of appreciation for their silver-white metallic luster, but also have better performance indicators such as corrosion resistance and discoloration resistance than copper alloy coins, and the cost is lower than the latter. Therefore, there are coins made of stainless steel in the coin series issued by many countries in the world. Due to factors such as confidentiality and anti-counterfeiting, the chemical composition of stainless steel used in various countries is different. For a long time, there have been no coins made of stainless steel for RMB. In response to this situation, after a lot of investigation and research, China Banknote Printing and Minting Corporation develop...

Claims

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Application Information

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IPC IPC(8): G01N21/25G01N1/28
Inventor 赖茂明张焕文王德雨胡向阳朱慕平周阔久孟波龙淑杰郭玉柱方刚
Owner CHINA BANKNOTE PRINTING & MINTING
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