SU66554A1 - Method and device for determining heat resistance of ebonite, plastics, etc. of materials - Google Patents
Method and device for determining heat resistance of ebonite, plastics, etc. of materialsInfo
- Publication number
- SU66554A1 SU66554A1 SU25742A SU301452A SU66554A1 SU 66554 A1 SU66554 A1 SU 66554A1 SU 25742 A SU25742 A SU 25742A SU 301452 A SU301452 A SU 301452A SU 66554 A1 SU66554 A1 SU 66554A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- heat resistance
- ball
- materials
- ebonite
- plastics
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
СПОСОБ И ПРИБОР ДЛЯ ОПРЕДЕЛЕНИЯ ТЕПЛОСТОЙКОСТИ ЭБОНИТА, ПЛАСТМАСС и т. п. МАТЕРИАЛОВMETHOD AND DEVICE FOR DETERMINING THE HEAT RESISTANCE OF EBONITE, PLASTICS, etc. MATERIALS
За влено 14 июл 1939 года в Наркомхимпром за № 25742 (301452) Опубликовано 30 июн 1946 г.Filed July 14, 1939 in the People's Commissariat of Industry for the number 25742 (301452) Published June 30, 1946
Существующие способы определени теплостойкости эбонита и пластмасс требуют заготовки образцов из этих материалов и измерений в специальных термостатах, вследствие чего исключаетс возможность определени теплостойкости таких материалов в листе. Кроме того существующие способы требуют значительного времени дл измерени (30-60 ми ут).The existing methods for determining the heat resistance of ebonite and plastics require the preparation of samples of these materials and measurements in special thermostats, which eliminates the possibility of determining the heat resistance of such materials in the sheet. In addition, existing methods require considerable time to measure (30-60 mAl).
Авторами предложены способ и прибор дл определени теплостойкости материалов непосредственно в листе, изделии и т. п.The authors have proposed a method and apparatus for determining the heat resistance of materials directly in the sheet, product, etc.
Сущность способа состоит в том, что дл определени теплостойкости материалов в листах, издели х и т. п. без заготовки образцов вблизи поверхности исследуемого материалаизмер ют температуру , при которой шарик, стержень и т. п. погружаетс в материал на определенную глубину.The essence of the method is that to determine the heat resistance of materials in sheets, products, etc., without preparing samples, the temperature at which the ball, rod, etc. is immersed in the material to a certain depth near the surface of the test material is measured.
Предлагаемый прибор дл определени теплостойкости выполнен в виде поверхностного нагревател , сквозь который пропущена трубка (или стержень), несуща на нижнем конце подпружиненный шарик или т. п. орган и св занна The proposed device for determining heat resistance is made in the form of a surface heater, through which a tube (or a rod) is passed, carrying a spring-loaded ball or the like at the lower end and connected
с индикатором, служащим дл указани глубины погружени шарика в материал. В приборе применена термопара, ра1сположенна спаем внутри шарика и служаща дл измерени температуры вблизи поверхности материала.with an indicator to indicate the depth of the ball in the material. A thermocouple is used in the device; it is located inside the ball and serves to measure the temperature near the material surface.
Прибор (см. чертеж) состоит из нагревател 1, имеющего снизу круглую плоскую площа дку, стальной трубки 2, пропущенной сквозь канал по оси нагревател и несущей на нижнем конце стальной шарик 3 с термопарой, пружины 4, вдавливающей шарик с определенной силой, и индикатора дл измерени глубины вдавливани . Все части прибора креп тс к круглой плите, вес которой подобран так. чтобы вес всего прибора был значительно больше силы упругости пружины.The device (see drawing) consists of a heater 1, which has a round flat area below, a steel tube 2, passed through a channel along the axis of the heater and a steel ball 3 with a thermocouple at the lower end, a spring 4 that presses the ball with a certain force, and an indicator for measuring indentation depth. All parts of the device are attached to a round plate, the weight of which is chosen as follows. so that the weight of the entire device was significantly greater than the elastic force of the spring.
Дл производства измерений, прибор ставитс на лист испытуемого материала б; провода 5 термопары присоедин ютс к гальванометру , и к нагревателю подводитс определенное электрическое напр жение . Через несколько минут после начала нагрева индикатора , бывша до того неподвижной , начинает медленно двигатьс , показыва тем самым, что материал разм гчилс . За критерий теплостойкости принимаетс отсчитываема по гальванометру температура , к моменту достижени которой шарик вдавливаетс на определенную глубину (например, на 0,1 мм).To make measurements, the instrument is placed on a sheet of test material b; The thermocouple wires 5 are connected to a galvanometer, and a certain electrical voltage is applied to the heater. A few minutes after the start of heating, the indicator, which was still stationary, begins to move slowly, thus showing that the material has softened. The criterion of heat resistance is taken to be counted on a galvanometer temperature, by the time at which the ball is pressed to a certain depth (for example, 0.1 mm).
- П-р е-д м-е т изобретени - PR e md inventions
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU25742A SU66554A1 (en) | 1939-07-14 | 1939-07-14 | Method and device for determining heat resistance of ebonite, plastics, etc. of materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU25742A SU66554A1 (en) | 1939-07-14 | 1939-07-14 | Method and device for determining heat resistance of ebonite, plastics, etc. of materials |
Publications (1)
Publication Number | Publication Date |
---|---|
SU66554A1 true SU66554A1 (en) | 1945-11-30 |
Family
ID=48246445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU25742A SU66554A1 (en) | 1939-07-14 | 1939-07-14 | Method and device for determining heat resistance of ebonite, plastics, etc. of materials |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU66554A1 (en) |
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1939
- 1939-07-14 SU SU25742A patent/SU66554A1/en active
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