SU54924A1 - The method of determining the hardness of materials - Google Patents
The method of determining the hardness of materialsInfo
- Publication number
- SU54924A1 SU54924A1 SU10819A SU54924DA SU54924A1 SU 54924 A1 SU54924 A1 SU 54924A1 SU 10819 A SU10819 A SU 10819A SU 54924D A SU54924D A SU 54924DA SU 54924 A1 SU54924 A1 SU 54924A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hardness
- determining
- materials
- core
- scratch
- Prior art date
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
Известные до сих пор способы определепи твердости материалов посредством их царапапи основаны на измерении количества работы, затраченной на царапание. В отличие от этого, предлагаемый способ состоит в том, что царапающему инструменту, например, алмазному острию, сообщают определенный импульс и определ ют длину нанесенной им на испытуемое тело царапины, котора и служит мерой его твердости. Дл этого керн, производ щий царапину, посредством пружины, освобождаемой храповым устройством, приводитс в поступательное или круговое движение и по длине произведенной им царапины на испытуемом предмете суд т о твердости составл ющего его материала.The methods known so far for determining the hardness of materials by scratching them are based on measuring the amount of work spent on scratching. In contrast, the proposed method consists in the fact that a scratch tool, for example, a diamond tip, is imparted with a certain impulse and the length of the scratch applied by it to the test body is determined, which serves as a measure of its hardness. For this, the core making the scratch is brought into translational or circular motion by means of a spring released by the ratchet device, and the hardness of the constituent material is judged along the length of the scratch produced by it on the test object.
На чертеже представлена примерна форма выполнени устройства дл осуществлени предлагаемого способа путем образовани круговой царапины, причем фиг. 1 показывает вид его сбоку, а фиг. 2-в плане.The drawing shows an exemplary embodiment of a device for carrying out the proposed method by forming a circular scratch, with FIG. 1 shows a side view thereof, and FIG. 2 in plan.
Керн в форме, например, алмазного остри А, укрепленный на рычаге F и наход щийс под давлением пружины В, будучи освобожден от собачки Е, получает вращательныйA core in the form of, for example, a diamond A, mounted on the lever F and under pressure from the spring B, being released from the dog E, receives a rotational
импульс определенной величины от заведенной пружины С. Длина пройденного керном А пути отсчитываетс по делени м, нанесенным в градусах дуги на кольце D. Количество градусов дает меру твердости материала. Вместо указанного на чертеже устройства, при котором пружина приводит керн в движение при неподвижном испытуемом образце, прибор может быть устроен и таким образом, что неподвижным остаетс керн, а двигаетс образец, причем как в том, так и в другом случае движение может быть или круговым или поступательным.the impulse of a certain size from the set spring C. The length of the path traveled by core A is measured by divisions applied in degrees of arc on ring D. The number of degrees gives a measure of the hardness of the material. Instead of the device indicated in the drawing, in which the spring sets the core in motion while the test sample is stationary, the device can be arranged in such a way that the core remains stationary and the sample moves, and in either case, the movement can be circular. or progressive.
Предмет изобретени .The subject matter of the invention.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU54924T | 1937-09-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
SU54924A1 true SU54924A1 (en) | 1938-11-30 |
Family
ID=52473710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU10819A SU54924A1 (en) | 1937-09-25 | 1937-09-25 | The method of determining the hardness of materials |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU54924A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2679929C1 (en) * | 2018-01-19 | 2019-02-14 | Открытое Акционерное Общество "Российские Железные Дороги" | Materials sclerometric research method for the micro-structure parameters changing and device for its implementation |
-
1937
- 1937-09-25 SU SU10819A patent/SU54924A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2679929C1 (en) * | 2018-01-19 | 2019-02-14 | Открытое Акционерное Общество "Российские Железные Дороги" | Materials sclerometric research method for the micro-structure parameters changing and device for its implementation |
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