SU127850A1 - The method of determining the relative heat resistance of product samples and device for its implementation - Google Patents

The method of determining the relative heat resistance of product samples and device for its implementation

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Publication number
SU127850A1
SU127850A1 SU634064A SU634064A SU127850A1 SU 127850 A1 SU127850 A1 SU 127850A1 SU 634064 A SU634064 A SU 634064A SU 634064 A SU634064 A SU 634064A SU 127850 A1 SU127850 A1 SU 127850A1
Authority
SU
USSR - Soviet Union
Prior art keywords
heat resistance
determining
implementation
relative heat
product samples
Prior art date
Application number
SU634064A
Other languages
Russian (ru)
Inventor
В.Л. Карпов
Ю.М. Малинский
Л.В. Митрофанова
Э.Э. Финкель
А.С. Фридман
Original Assignee
В.Л. Карпов
Ю.М. Малинский
Л.В. Митрофанова
Э.Э. Финкель
А.С. Фридман
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 В.Л. Карпов, Ю.М. Малинский, Л.В. Митрофанова, Э.Э. Финкель, А.С. Фридман filed Critical В.Л. Карпов
Priority to SU634064A priority Critical patent/SU127850A1/en
Application granted granted Critical
Publication of SU127850A1 publication Critical patent/SU127850A1/en

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Description

Изобретение относитс  к способам определени  относительной теплостойкости образцов изделий, например проводов с изол цией из термопластичных или термореактивных эластомеров, при помощи вызываемой в них деформации под действием посто нной нагрузки.The invention relates to methods for determining the relative heat resistance of specimens of products, for example, wires with insulation from thermoplastic or thermosetting elastomers, by means of the deformation caused in them under the action of a constant load.

Предлагаемый способ отличаетс  от известных тем, что испытуемый образец издели  сгибают в виде петли и нагревают при посто нной скорости повышени  температуры. Применение такого способа позвол ет более точно оценивать теплостойкость изделий.The proposed method differs from the known ones in that the test sample of the product is bent in the form of a loop and heated at a constant rate of temperature increase. The use of such a method allows a more accurate assessment of the heat resistance of products.

На чертеже изобрал ена схема устройства дл  осуществлени  предлагаемого способа.The drawing shows a diagram of an apparatus for carrying out the proposed method.

Устройство представл ет собой массивную стальную пииту / с двум  желобками 2 пр моугольного сечени . Желобки служат направл гощими дл  Побразной рамы 3, верхн   часть которой  вл етс  основанием дл  съемного узла 4, предназначенного дл  установки испытуемого образца 5. Образец 5 сгибают в виде петли, накладывают на-ребра о пластинки 7 и покрывают сверху второй такой же пластинкой 8. Пластинки 7 и 8 центрируют таким образом, чтобы места контакта верхних и нижних ребер с изол цией провода лежали на одной вертикали. К верхней пластинке 8 прикреплен щток 9 дл  подвески груза Ю, который проходит в отверстие нижней пластинки 7 и П-образной рамы 3. К раме 3 укрепл етс  также планка 11, на которой установлен корпус индикаторной головки 12. Шток 13 индикатора проходит внутри муфты и отверсти  в планке и свободно опираетс  на верхнюю пластинку 8. Испытуемый образец вместе с пластинками 7 и S помещают в термостат и па показани м индикатора нагрузки и термометра наход т зависимость деформации при посто нной нагрузке от температуры при посто  ;ной скорости ее подъема.The device is a massive steel pit / with two grooves of 2 rectangular cross section. The grooves serve as guides for the Frame-shaped frame 3, the upper part of which is the base for the removable unit 4 to be mounted on the test sample 5. Sample 5 is folded in the form of a loop, laid over the edges of the plate 7 and covered on top of the second with the same plate 8. The plates 7 and 8 are centered so that the points of contact of the upper and lower edges with the wire insulation lie on the same vertical. To the top plate 8 there is attached a choke 9 for suspension of the load U, which passes into the hole of the lower plate 7 and the U-shaped frame 3. The frame 11 is also fixed to the frame 11, on which the indicator head body 12 is mounted. The indicator stem 13 passes inside the coupling and holes in the bar and loosely supported on the top plate 8. The test sample, together with the plates 7 and S, is placed in a thermostat and, according to the readings of the load indicator and thermometer, find the dependence of the deformation at a constant load on the temperature at a constant speed but.

Предмет изобретени Subject invention

1.Способ определени  относительной теплостойкости образцов изделий , например проводов с изол цией из термопластичных или термореактивных эластомеров, при помощи вызываемой в них деформации под действием посто нной нагрузки, отличающийс  тем, что, с целью непрерывности измерений и повышени  их точности, испытземый образец издели -сгибают в виде петли и нагревают в режиме с посто нной скоростью повыщени  температуры.1. A method for determining the relative heat resistance of specimens of products, for example, wires with insulation of thermoplastic or thermosetting elastomers, using the strain caused by them under the action of a constant load, characterized in that, in order to ensure continuity of measurements and increase their accuracy, is bent in the form of a loop and heated in a mode with a constant rate of temperature increase.

2.Устройство дл  определени  относительной теплостойкости изделий по способу в п. 1, содержащее вертикальный шток с грузом, воздействующим на испытуемый образец и сочлененным с индикатором, отличающеес  тем, что его деформирующим поверхност м придана форма, свойственна  форме поверхности издели , например полуцилиндрическа .2. A device for determining the relative heat resistance of products according to the method in claim 1, comprising a vertical rod with a load acting on the sample under test and articulated with an indicator, characterized in that its deforming surfaces are shaped to form the surface of the product, for example, semi-cylindrical.

SU634064A 1959-07-16 1959-07-16 The method of determining the relative heat resistance of product samples and device for its implementation SU127850A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU634064A SU127850A1 (en) 1959-07-16 1959-07-16 The method of determining the relative heat resistance of product samples and device for its implementation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU634064A SU127850A1 (en) 1959-07-16 1959-07-16 The method of determining the relative heat resistance of product samples and device for its implementation

Publications (1)

Publication Number Publication Date
SU127850A1 true SU127850A1 (en) 1959-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU634064A SU127850A1 (en) 1959-07-16 1959-07-16 The method of determining the relative heat resistance of product samples and device for its implementation

Country Status (1)

Country Link
SU (1) SU127850A1 (en)

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