CN101738334A - 金属熔体取样装置 - Google Patents
金属熔体取样装置 Download PDFInfo
- Publication number
- CN101738334A CN101738334A CN200910224007A CN200910224007A CN101738334A CN 101738334 A CN101738334 A CN 101738334A CN 200910224007 A CN200910224007 A CN 200910224007A CN 200910224007 A CN200910224007 A CN 200910224007A CN 101738334 A CN101738334 A CN 101738334A
- Authority
- CN
- China
- Prior art keywords
- sample chamber
- tellurium
- metal melts
- sampling metal
- sampler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/12—Dippers; Dredgers
- G01N1/125—Dippers; Dredgers adapted for sampling molten metals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4673—Measuring and sampling devices
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
- C21C2005/5288—Measuring or sampling devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
本发明涉及金属熔体取样装置,尤其是熔融铁和熔融铸铁的取样装置,该装置配备有具有入口的样品室,其中所述样品室中设置有碲,并且本发明在于所述样品室相对于其容积而含有0.01g/cm3至0.05g/cm3的碲,并且在于所述碲呈平均粒径为不超过150μm的粉末状。
Description
技术领域
本发明涉及金属熔体取样装置,尤其是熔融铁和熔融铸铁的取样装置,该装置配备有具有入口的样品室,其中该样品室中设置有碲。
背景技术
由专利文献DE 2646539A1中得知这样一种用于测定金属熔体凝固温度的容器,其中该容器底面上设置有粘附的碲层。这种含有难熔材料和产氢材料的混合物会造成碲的延缓释放。这样,碲本身应该会改善倒入容器内的熔体的所谓的白凝固(white solidification)。由专利文献EP 436063B 1中得知,将含有碲的混合物设置在熔融金属取样器的入口的密封盖中。当密封盖被破坏时,流入的熔融金属会将该混合物冲入样品室内。在专利文献US 5948350中披露有类似的装置。
发明内容
本发明基于这样的问题,即:要得到一种使得金属样品在其中可达到最佳白凝固的取样装置。
该问题是通过独立权利要求的技术特征解决的。在从属权利要求中阐明了有利的实施方案。令人惊讶的是,已经表明:与现有技术的教导相反,当把纯碲均匀分布于样品中时,获得了最佳的结果。
这是借助本发明的装置实现的,其中,相对于样品室的容积,该样品室含有0.01g/cm3至0.05g/cm3的碲,并且其中所述碲呈平均粒径为不超过150μm的粉末状,或者其中所述碲呈平均粒径为不超过150μm、且比表面积为0.03m2/g至0.1m2/g的粉末状。
优选的是,样品室含有0.015g/cm3至0.025g/cm3的碲。更为有利的是,其比表面积为0.06m2/g至0.07m2/g。
附图说明
下面,将参照附图并通过实施例对本发明进行描述。在附图中:
图1示出本发明的取样器的剖面;
图2示出白凝固样品的抛光剖面;并且
图3示出未添加碲的常规样品的抛光剖面。
具体实施方式
本发明的取样器具有由型砂制成的主体1,其中样品室2设置在开口内。该开口在取样器的浸没侧被砂体3封闭。样品室2具有环形轮廓,其直径约为35mm且高约为10mm。其底表面分别由金属板4形成,并且位于两个底表面之间的侧表面是由陶瓷环5制成的。
图右侧示出了入口6,其与石英管相连。该石英管由保护盖7封闭。
主体1具有用于常规载体管的连接口8。所述载体管可以由纸板形成。
在样品室2中,设置有约0.2g碲粉末9,相对于该样品室的容积,碲粉末9的设置量为约0.02g/cm3。该粉末通过研磨制得,其平均粒径小于100μm,且比表面积为约0.065m2/g。
由于比表面积和体积或质量相互之间没有直接的关系,因此即使仅满足其中一个条件就已经产生了本发明的有益效果,这显然是由于在熔体进入样品室中时,所述粉末与熔融金属出人意料地混合均匀了,因此本发明的有益效果得以实现。这样便产生了图2中所示的所需的白凝固。相反,当未添加碲时,产生了图3中所示的非均匀的凝固。
Claims (4)
1.金属熔体取样装置,尤其是熔融铁和熔融铸铁的取样装置,该装置配备有具有入口的样品室,其中所述样品室中设置有碲,该装置的特征在于:相对于所述样品室的容积,所述样品室含有0.01g/cm3至0.05g/cm3的碲,并且所述碲呈平均粒径为不超过150μm的粉末状。
2.根据权利要求1所述的装置,其特征在于:所述样品室含有0.015g/cm3至0.025g/cm3的碲。
3.金属熔体取样装置,尤其是熔融铁和熔融铸铁的取样装置,该装置配备有具有入口的样品室,其中所述样品室中设置有碲,该装置的特征在于:所述碲呈平均粒径为不超过150μm、且比表面积为0.03m2/g至0.1m2/g的粉末状。
4.根据权利要求3所述的装置,其特征在于:所述比表面积为0.06m2/g至0.07m2/g。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008057797A DE102008057797B4 (de) | 2008-11-17 | 2008-11-17 | Vorrichtung zur Probennahme von Metallschmelzen |
DE102008057797.9 | 2008-11-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101738334A true CN101738334A (zh) | 2010-06-16 |
CN101738334B CN101738334B (zh) | 2013-02-13 |
Family
ID=41796585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009102240070A Expired - Fee Related CN101738334B (zh) | 2008-11-17 | 2009-11-17 | 金属熔体取样装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8141439B2 (zh) |
EP (1) | EP2187194B1 (zh) |
CN (1) | CN101738334B (zh) |
AU (1) | AU2009227830B2 (zh) |
BR (1) | BRPI0904499A2 (zh) |
DE (1) | DE102008057797B4 (zh) |
PL (1) | PL2187194T3 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10360625B3 (de) * | 2003-12-19 | 2005-01-13 | Heraeus Electro-Nite International N.V. | Probennehmer für Metallschmelzen |
DE102011116440A1 (de) * | 2011-10-20 | 2013-04-25 | Heraeus Electro-Nite International N.V. | Vorrichtung zum Messen von Parametern oder zur Probennahme in Eisen- oder Stahlschmelzen |
DE102011055950B4 (de) * | 2011-12-01 | 2020-03-26 | Fritz Winter Eisengiesserei Gmbh & Co. Kg | Probentiegel und Verfahren zur Thermoanalyse einer Gießschmelzenprobe |
EP2781607A1 (en) | 2013-03-20 | 2014-09-24 | Heraeus Electro-Nite International N.V. | Sampler for molten iron |
DE102013224565A1 (de) | 2013-04-30 | 2014-10-30 | Heraeus Electro-Nite International N.V. | Probennehmer und Verfahren zur Probenentnahme |
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-
2008
- 2008-11-17 DE DE102008057797A patent/DE102008057797B4/de not_active Expired - Fee Related
-
2009
- 2009-10-16 AU AU2009227830A patent/AU2009227830B2/en not_active Ceased
- 2009-11-11 PL PL09014105T patent/PL2187194T3/pl unknown
- 2009-11-11 EP EP09014105A patent/EP2187194B1/de not_active Not-in-force
- 2009-11-16 US US12/619,193 patent/US8141439B2/en not_active Expired - Fee Related
- 2009-11-17 CN CN2009102240070A patent/CN101738334B/zh not_active Expired - Fee Related
- 2009-11-17 BR BRPI0904499-0A patent/BRPI0904499A2/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP2187194B1 (de) | 2012-09-12 |
AU2009227830B2 (en) | 2011-09-29 |
AU2009227830A1 (en) | 2010-06-03 |
US8141439B2 (en) | 2012-03-27 |
US20100122590A1 (en) | 2010-05-20 |
DE102008057797A1 (de) | 2010-05-27 |
DE102008057797B4 (de) | 2013-11-28 |
PL2187194T3 (pl) | 2013-02-28 |
EP2187194A2 (de) | 2010-05-19 |
CN101738334B (zh) | 2013-02-13 |
BRPI0904499A2 (pt) | 2011-03-15 |
EP2187194A3 (de) | 2011-06-22 |
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