SU621987A1 - Hardness determining method - Google Patents

Hardness determining method

Info

Publication number
SU621987A1
SU621987A1 SU752116636A SU2116636A SU621987A1 SU 621987 A1 SU621987 A1 SU 621987A1 SU 752116636 A SU752116636 A SU 752116636A SU 2116636 A SU2116636 A SU 2116636A SU 621987 A1 SU621987 A1 SU 621987A1
Authority
SU
USSR - Soviet Union
Prior art keywords
hardness
sample
contour
moment
plane
Prior art date
Application number
SU752116636A
Other languages
Russian (ru)
Inventor
Марк Соломонович Дрозд
Юрий Ильич Славский
Александр Алексеевич Барон
Original Assignee
Волгоградский Политехнический Институт
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 Волгоградский Политехнический Институт filed Critical Волгоградский Политехнический Институт
Priority to SU752116636A priority Critical patent/SU621987A1/en
Application granted granted Critical
Publication of SU621987A1 publication Critical patent/SU621987A1/en

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  • A Measuring Device Byusing Mechanical Method (AREA)

Description

DO - диаметральный размер от плоскости , в которой лежит контур границы отпечатка; С -цена делени  шкалы индикатора.DO is the diametral size of the plane in which the contour of the imprint border lies; From the dividing scale of the indicator scale.

Claims (1)

Формула изобретени Invention Formula Способ определени  твердости тел сферической формы, заключающийс  в том, что в исследуемый образец вдавливают индентор , измер ют перемещение его за врем  от момента касани  поверхности образца до момента прекращени  внедрени , а твердость оценивают по величине этого перемещени , отличающийс  тем, что, с целью повышени  точности, измер ют диаметр образца и диаметральный размер отThe method for determining the hardness of spherical bodies, which consists in injecting an indenter into the sample, measures its displacement during the time from the moment of touching the sample surface to the moment of its interruption, and evaluates the hardness by the magnitude of this displacement. accuracy, measure the diameter of the sample and the diametral size from плоскости, в которой лежит контур границы отпечатка, а твердость вычисл ют по формулеthe plane in which the contour of the border of the print lies, and the hardness is calculated by the formula HR A-A±i z A),HR A A ± i z A), ОABOUT где HR - значение твердости по Роквеллу;where HR is the Rockwell hardness value; Л - посто нна , равна  100 или 130 при определении твердости HRB или HRC соответственно; ha - величина перемещени  индентора под нагрузкой;L - constant, equal to 100 or 130 when determining the hardness of HRB or HRC, respectively; ha is the amount of movement of the indenter under load; D - диаметр сферического образца;D is the diameter of the spherical sample; DO - диаметральный размер от плоскости , в которой лежит контур границы отпечатка;DO is the diametral size of the plane in which the contour of the imprint border lies; С - цена делени  шкалы индикатора.С - the price of division of the indicator scale.
SU752116636A 1975-03-24 1975-03-24 Hardness determining method SU621987A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU752116636A SU621987A1 (en) 1975-03-24 1975-03-24 Hardness determining method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU752116636A SU621987A1 (en) 1975-03-24 1975-03-24 Hardness determining method

Publications (1)

Publication Number Publication Date
SU621987A1 true SU621987A1 (en) 1978-08-30

Family

ID=20613713

Family Applications (1)

Application Number Title Priority Date Filing Date
SU752116636A SU621987A1 (en) 1975-03-24 1975-03-24 Hardness determining method

Country Status (1)

Country Link
SU (1) SU621987A1 (en)

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