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 force

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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
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SU
USSR - Soviet Union
Prior art keywords
steels
content
carbon
thickness
determining
Prior art date
Application number
SU573380A
Other languages
Russian (ru)
Inventor
Д.Г. Зайцев
Original Assignee
Д.Г. Зайцев
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Д.Г. Зайцев filed Critical Д.Г. Зайцев
Priority to SU573380A priority Critical patent/SU111044A1/en
Application granted granted Critical
Publication of SU111044A1 publication Critical patent/SU111044A1/en

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  • 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.

SU573380A 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 SU111044A1 (en)

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

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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)

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