Method for analyzing steel and apparatus therefor
    1.
    发明授权
    Method for analyzing steel and apparatus therefor 失效
    钢及其设备分析方法

    公开(公告)号:US5537206A

    公开(公告)日:1996-07-16

    申请号:US331792

    申请日:1994-10-31

    CPC分类号: G01N33/20 G01N21/718 G01N1/22

    摘要: A method for analyzing steel which comprises: grinding an analysis area of a steel ingot; sealing the analysis area with a sealing section of a cell for generating fine particles; again grinding the analysis area, while an argon gas is introduced into the cell; irradiating a pulsed laser beam of 10.sup.8 W/cm.sup.2 or more onto the analysis area at an irradiating spot of at least 1 mm.sup.2 to generate the fine particles; moving the irradiating spot; and transferring the generated fine particles by the argon gas to a plasma emission analysis for analysis. A further method for analyzing steel comprises: solidifying a molten steel sample, forming a red-hot sample; putting the sample into a sample holding section of a sample chamber under a purified argon gas atmosphere, the sample holding section having an inner curved surface the same as a curved surface of the sample; irradiating a pulsed laser onto the sample to remove a sample surface layer of 25 .mu.m or more of the sample and to generate fine particles from the sample; and exciting the fine particles by a plasma emission analyzer to analyze the composition of the fine particles.

    摘要翻译: 一种钢的分析方法,包括:研磨钢锭的分析区域; 用用于产生细颗粒的电池的密封部分密封分析区域; 再次研磨分析区,同时将氩气引入电池; 以至少1mm 2的照射点将108W / cm 2以上的脉冲激光照射到分析区域上,生成微粒子; 移动照射点; 并通过氩气将生成的细颗粒转移到等离子体发射分析用于分析。 分析钢的另一种方法包括:使钢水样品固化,形成红热样品; 将样品放置在纯化氩气气氛下的样品室的样品保持部分中,样品保持部分具有与样品的曲面相同的内部曲面; 将脉冲激光照射到样品上以除去样品的25μm或更多的样品表面层,并从样品中产生细颗粒; 并通过等离子体发射分析仪激发细颗粒以分析细颗粒的组成。

    Method for analyzing solid sample
    2.
    发明授权
    Method for analyzing solid sample 失效
    固体样品分析方法

    公开(公告)号:US5452070A

    公开(公告)日:1995-09-19

    申请号:US266239

    申请日:1994-06-27

    CPC分类号: G01N21/718

    摘要: A method for analyzing solid sample comprises the steps of: introducing an inert carrier gas into a cell; a preliminary treatment step of irradiating laser beam to a sample surface of the solid sample in the inert carrier gas, the laser beam having a pulse half width of 0.001 .mu.sec or more, a pulse energy density of 0.001 GW/cm.sup.2 or more, and a frequency of 100 Hz or more; generating fine particles in the inert carrier gas on a condition that a rate of fine particles generation, V (.mu.g/sec), and selection ratio, S, satisfy the following equations, the selection ratio being a retio of a concentration of a target element for analysis within the fine particles to a concentration of the target element for analysis within the solid sample;S.ltoreq.0.25 log V+1.5,S.gtoreq.-0.2 log V+0.6,0.1.ltoreq.V.ltoreq.100intoducing the generated fine particles to a detector.

    摘要翻译: 用于分析固体样品的方法包括以下步骤:将惰性载气引入到电池中; 将惰性载气中的固体样品的样品表面照射激光的预处理步骤,脉冲半宽度为0.001μsec以上,脉冲能量密度为0.001GW / cm 2以上的激光,以及 频率为100Hz以上; 在微细生成速度V(μg/ sec)和选择比S满足下列等式的条件下,在惰性载气中产生细颗粒,选择比为目标浓度 在细颗粒内分析用于在固体样品中分析的目标元素的浓度的元素; S / = -0.2log V + 0.6,0.1

    Method for analyzing metal material
    3.
    发明授权
    Method for analyzing metal material 有权
    用于分析金属材料的制造方法

    公开(公告)号:US08865471B2

    公开(公告)日:2014-10-21

    申请号:US13131327

    申请日:2008-12-25

    IPC分类号: G01N33/20 G01N31/02

    CPC分类号: G01N31/02 G01N33/20

    摘要: A method for analyzing a metal material includes electrolyzing a metal sample in an electrolytic solution, immersing a remaining portion of the metal sample taken out of the electrolytic solution in a dispersible solution to separate at least one substance selected from the group consisting of precipitates and inclusions attached to the remaining portion of the metal sample, filtering the dispersible solution containing the at least one separated substance through filters having straight pores and a porosity of 4% or more to obtain residues trapped on the filters and filtrates, and analyzing at least one of the residues and the filtrates.

    摘要翻译: 金属材料的分析方法包括电解电解液中的金属试样,将从电解液中取出的金属试样的剩余部分浸渍在分散溶液中,分离出选自沉淀物和夹杂物中的至少一种物质 附着到金属样品的剩余部分,通过具有直孔和孔隙率为4%以上的过滤器过滤含有至少一种分离物质的可分散溶液,以获得捕获在过滤器上的残留物和滤液,并分析至少一种 残留物和滤液。

    MOLTEN STEEL DESULFURIZATION METHOD, MOLTEN STEEL SECONDARY REFINING METHOD, AND MOLTEN STEEL MANUFACTURING METHOD
    4.
    发明申请
    MOLTEN STEEL DESULFURIZATION METHOD, MOLTEN STEEL SECONDARY REFINING METHOD, AND MOLTEN STEEL MANUFACTURING METHOD 审中-公开
    钼钢脱硫方法,钢铁二次精炼方法和钢铁制造方法

    公开(公告)号:US20140096643A1

    公开(公告)日:2014-04-10

    申请号:US14123688

    申请日:2012-08-08

    IPC分类号: C21C7/064

    摘要: There are provided a method for desulfurizing molten steel, characterized in that a sample taken out from molten steel after the tapping from a converter or during the secondary refining is analyzed rapidly in a high accuracy by a method comprising a high frequency induction heating step wherein the sample is combusted and oxidized under the high frequency induction heating in a pure oxygen atmosphere to convert S in the sample into SO2 and an analyzing step wherein SO2-containing gas produced in the high frequency induction heating step is analyzed through an ultraviolet fluorescence method to quantify S concentration of the sample, whereby S concentration of molten steel after the tapping from the converter can be controlled in a high accuracy to prevent failure of S concentration and also desulfurization time in the secondary refining can be shortened and the amount of the desulfurizer or the like used can be reduced, and a method of manufacturing molten steel by using such a method.

    摘要翻译: 提供了一种用于钢水脱硫的方法,其特征在于,通过包括高频感应加热步骤的方法,以高精度快速地分析从转炉中或在二次精炼过程中从钢水中取出的样品,其中, 样品在纯氧气氛中在高频感应加热下燃烧和氧化,将样品中的S转化成SO2,分析步骤,其中通过紫外荧光法分析在高频感应加热步骤中产生的含SO 2的气体,以量化 S浓度,可以高精度地控制从转炉出料后的钢水的S浓度,以防止S浓度的降低,并且可以缩短二次精炼中的脱硫时间,并且脱硫剂或 可以减少使用的方法,以及使用这种方法制造钢水的方法 。

    METHOD FOR DESULFURIZING HOT METAL
    5.
    发明申请
    METHOD FOR DESULFURIZING HOT METAL 有权
    冷却金属的方法

    公开(公告)号:US20140083251A1

    公开(公告)日:2014-03-27

    申请号:US14119692

    申请日:2012-08-08

    IPC分类号: C21C1/02

    摘要: In a method for desulfurizing hot metal by analyzing S concentration of a sample taken out from the hot metal, the S concentration is analyzed rapidly and precisely by a method comprising a high frequency induction heating step of oxidizing the sample under a high frequency induction heating in a pure oxygen atmosphere to convert S in the hot metal to SO2 and an analysis step of analyzing SO2-containing gas generated in the high frequency induction heating step through an ultraviolet fluorescence method to quantify S concentration in the sample, whereby S concentration after the desulfurization is controlled precisely and hence fault of S concentration is prevented but also the increase of the cost due to the excessive addition of a desulfurization agent and step disruption at steel-making step are prevented.

    摘要翻译: 在通过分析从铁水中取出的样品的S浓度来分析硫酸铁的方法中,通过包括在高频感应加热下对样品进行氧化的高频感应加热步骤的方法,迅速且精确地分析S浓度 将氧化铁中的S转化为SO2的纯氧气氛和通过紫外线荧光法分析在高频感应加热工序中产生的含SO 2气体的分析步骤,以量化样品中的S浓度,由此脱硫后的S浓度 被精确地控制,因此防止了S浓度的故障,并且防止了由于过度添加脱硫剂而造成的成本的增加以及在炼钢步骤中的阶段破坏。

    METHOD FOR ANALYZING METAL MATERIAL
    6.
    发明申请
    METHOD FOR ANALYZING METAL MATERIAL 有权
    分析金属材料的方法

    公开(公告)号:US20110240477A1

    公开(公告)日:2011-10-06

    申请号:US13131327

    申请日:2008-12-25

    IPC分类号: G01N33/20 C25D5/00 C25D3/54

    CPC分类号: G01N31/02 G01N33/20

    摘要: A method for analyzing a metal material includes electrolyzing a metal sample in an electrolytic solution, immersing a remaining portion of the metal sample taken out of the electrolytic solution in a dispersible solution to separate at least one substance selected from the group consisting of precipitates and inclusions attached to the remaining portion of the metal sample, filtering the dispersible solution containing the at least one separated substance through filters having straight pores and a porosity of 4% or more to obtain residues trapped on the filters and filtrates, and analyzing at least one of the residues and the filtrates.

    摘要翻译: 金属材料的分析方法包括电解电解液中的金属试样,将从电解液中取出的金属试样的剩余部分浸渍在分散溶液中,分离出选自沉淀物和夹杂物中的至少一种物质 附着到金属样品的剩余部分,通过具有直孔和孔隙率为4%以上的过滤器过滤含有至少一种分离物质的可分散溶液,以获得捕获在过滤器上的残留物和滤液,并分析至少一种 残留物和滤液。

    METHOD FOR ANALYZING METAL SPECIMEN
    7.
    发明申请
    METHOD FOR ANALYZING METAL SPECIMEN 有权
    分析金属样品的方法

    公开(公告)号:US20100291692A1

    公开(公告)日:2010-11-18

    申请号:US12666652

    申请日:2008-06-26

    IPC分类号: G01N27/26 G01N33/20

    CPC分类号: G01N33/20 G01N2001/4038

    摘要: A method for analyzing a metal specimen includes an electrolysis step of electrolyzing a metal specimen containing a reference element and a target element in an electrolytic solution, a sampling step of sampling a portion of the electrolytic solution, an analysis step of analyzing the sampled electrolytic solution, a concentration ratio-calculating step of calculating the concentration ratio of the target element to the reference element in the electrolytic solution on the basis of the analysis results, and a content-calculating step of calculating the content of the target element present in the form of a solid solution by multiplying the content of the reference element in the metal specimen by the obtained concentration ratio.

    摘要翻译: 一种用于分析金属试样的方法包括:在电解液中电解含有参考元素和目标元素的金属试样的电解步骤,对电解液的一部分取样的取样步骤,分析取样的电解液 ,浓度比计算步骤,基于分析结果计算电解液中的目标元素与参考元素的浓度比;以及内容计算步骤,计算以该形式存在的目标元素的含量 通过将金属样品中的参考元素的含量乘以获得的浓度比来获得固溶体。

    Method for desulfurizing hot metal
    8.
    发明授权
    Method for desulfurizing hot metal 有权
    铁水脱硫方法

    公开(公告)号:US09068237B2

    公开(公告)日:2015-06-30

    申请号:US14119692

    申请日:2012-08-08

    摘要: In a method for desulfurizing hot metal by analyzing S concentration of a sample taken out from the hot metal, the S concentration is analyzed rapidly and precisely by a method comprising a high frequency induction heating step of oxidizing the sample under a high frequency induction heating in a pure oxygen atmosphere to convert S in the hot metal to SO2 and an analysis step of analyzing SO2-containing gas generated in the high frequency induction heating step through an ultraviolet fluorescence method to quantify S concentration in the sample, whereby S concentration after the desulfurization is controlled precisely and hence fault of S concentration is prevented but also the increase of the cost due to the excessive addition of a desulfurization agent and step disruption at steel-making step are prevented.

    摘要翻译: 在通过分析从铁水中取出的样品的S浓度来分析硫酸铁的方法中,通过包括在高频感应加热下对样品进行氧化的高频感应加热步骤的方法,迅速且精确地分析S浓度 将氧化铁中的S转化为SO2的纯氧气氛和通过紫外线荧光法分析在高频感应加热工序中产生的含SO 2气体的分析步骤,以量化样品中的S浓度,由此脱硫后的S浓度 被精确地控制,因此防止了S浓度的故障,并且防止了由于过度添加脱硫剂而造成的成本的增加以及在炼钢步骤中的阶段破坏。

    METHOD AND DEVICE FOR ANALYZING SULFUR IN METAL SAMPLE
    9.
    发明申请
    METHOD AND DEVICE FOR ANALYZING SULFUR IN METAL SAMPLE 有权
    用于分析金属样品中硫的方法和装置

    公开(公告)号:US20130196445A1

    公开(公告)日:2013-08-01

    申请号:US13579989

    申请日:2011-02-17

    IPC分类号: G01N33/20

    摘要: An analyzing method which enables highly precise and rapid quantitative analysis of sulfur contained in a metal sample, includes: combusting a metal sample containing a sulfur component under pure oxygen gas atmosphere to oxidize the sulfur component into sulfur dioxide; and quantitatively analyzing sulfur in the metal sample through analysis, according to a UV fluorescence method, of a sulfur dioxide containing gas containing the sulfur dioxide generated by combustion of the metal sample.

    摘要翻译: 一种能够对金属样品中所含的硫进行高精度和快速定量分析的分析方法包括:在纯氧气气氛下将含硫成分的金属样品燃烧,将硫成分氧化成二氧化硫; 并且通过根据UV荧光法通过分析含有由金属样品的燃烧产生的二氧化硫的含二氧化硫的气体来定量分析金属样品中的硫。