SU111044A1 - The method for determining the content of dissolved silicon and carbon in steels and cast irons and the thickness of the sulfided layer on steels by changing the thermoelectromotive force - Google Patents
The method for determining the content of dissolved silicon and carbon in steels and cast irons and the thickness of the sulfided layer on steels by changing the thermoelectromotive forceInfo
- Publication number
- SU111044A1 SU111044A1 SU573380A SU573380A SU111044A1 SU 111044 A1 SU111044 A1 SU 111044A1 SU 573380 A SU573380 A SU 573380A SU 573380 A SU573380 A SU 573380A SU 111044 A1 SU111044 A1 SU 111044A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- steels
- content
- carbon
- thickness
- determining
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
Способы определени содержани кремни и углерода, растворенных в стали или чугуне, при которых определ етс содержание отдельных элементов , очень трудоемки.The methods for determining the content of silicon and carbon dissolved in steel or cast iron, in which the content of individual elements is determined, are very laborious.
Дл устранени этого недостатк; и ускорени анализа предлагаетс , согласно изобретегпно, сначала определ ть суммарное содержание кремни и углерода методом измере П1 термоэлектродвижущен силы, затем содержание углерода оиредел тр из вестными методами (сжиганием или по твердости) и, наконец, содержание кремни вычисл ть по разиости показаний двух первых измерении. Толщину .сульфидпрованного сло определ ют измерением термоэ.мектродвижуи1ей силы, измеи юиюис пропорционально г.тубнне сульфидпрованного сло . Измерени тер.оэлектродвижугпей силы можно проводить на образцах испытуемого металла в виде стружки, нолуче1П ои при сверлении. В этом случае металл быстро прогреваетс с помоишюTo eliminate this disadvantage; According to the invention, it is proposed to accelerate the analysis, first to determine the total silicon and carbon content using the P1 measurement method; thermoelectromotive force; then the carbon content is determined using known methods (burning or hardness) and, finally, the silicon content is calculated from the difference of the first two measurements . The thickness of the sulfided layer is determined by measuring the thermoelectric power of the propulsion force, the displacement of the uiyuis is proportional to the city of the sulfidized layer. Measurements of thermoelectric forces can be carried out on samples of the test metal in the form of chips, but not when drilling. In this case, the metal quickly warms up with
стержн , составл юп1его второй электрод термопары. Материалом д.т второго электрода слулсит медь. Перед каждым замером следует провер ть измерительное устройство с иомоп1,ыо эталоиа из чистого железа, приготовленного в виде пластиики толщиной до 11 мм. При этой проверке измерительный прибор должен показать термоэлектродвижуи1,ую си .ту, равную минус одному милливольт - , ири нагреве в пределах 120-20(1. В качестве электродов используютс стержни диаметром 5 мм и длиной 350 .1;../. Р1спытуемый металл располагаетс при измерени х между медным и железным электродамп, расположе1П1ыми иа рассто нгп не бо .чее 5 мм.the rod constituted a second thermocouple electrode. The material d.t second electrode sludsit copper. Before each measurement, the measuring device should be checked with a homogenous device, made of pure iron, prepared in the form of plastic, up to 11 mm thick. In this test, the measuring device should show thermoelectric motors 1, this system, equal to minus one millivolt, and heat in the range of 120–20 (1. Rods 5 mm in diameter and 350 .1 in length are used as electrodes; ../. Tested metal It is located when measuring between copper and iron electrodumps located at a distance of not more than 5 mm.
и р е д м е т и з о б р е т е п и and redemt and z obretep and
Способ определени содержани растворенных кремни и углерода в ста.ч х и чугунах п толщины сульфндпрованного сло на стал х по № 111044 измерению термоэлектродвижущей силы, отличающийс тем, что, с целью ускорени анализа, определение указанных элементов ведут суммарно, затем содержание углерода определ ют известными методами ( сжиганием или по твердости), содержание кремни наход т по разности из суммы кремни и углерода, . толщину сульфидированного сло определ ют измерением термоэлектродвижущей силы, измен ющейс пропорционально глубине сло .The method for determining the dissolved silicon and carbon content in old iron and cast iron and thickness of the sulfunded layer on measurement of the thermoelectromotive force, characterized in that, in order to speed up the analysis, the determination of these elements is carried out in total, then the carbon content is determined by the known by methods (burning or hardness), the silicon content is found by the difference of the sum of silicon and carbon,. The thickness of the sulfided layer is determined by measuring the thermoelectromotive force, which is proportional to the depth of the layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU573380A SU111044A1 (en) | 1957-05-21 | 1957-05-21 | The method for determining the content of dissolved silicon and carbon in steels and cast irons and the thickness of the sulfided layer on steels by changing the thermoelectromotive force |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU573380A SU111044A1 (en) | 1957-05-21 | 1957-05-21 | The method for determining the content of dissolved silicon and carbon in steels and cast irons and the thickness of the sulfided layer on steels by changing the thermoelectromotive force |
Publications (1)
Publication Number | Publication Date |
---|---|
SU111044A1 true SU111044A1 (en) | 1957-11-30 |
Family
ID=48383707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU573380A SU111044A1 (en) | 1957-05-21 | 1957-05-21 | The method for determining the content of dissolved silicon and carbon in steels and cast irons and the thickness of the sulfided layer on steels by changing the thermoelectromotive force |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU111044A1 (en) |
-
1957
- 1957-05-21 SU SU573380A patent/SU111044A1/en active
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