SU460477A1 - The method of determining the rubber Poisson ratio - Google Patents
The method of determining the rubber Poisson ratioInfo
- Publication number
- SU460477A1 SU460477A1 SU1799266A SU1799266A SU460477A1 SU 460477 A1 SU460477 A1 SU 460477A1 SU 1799266 A SU1799266 A SU 1799266A SU 1799266 A SU1799266 A SU 1799266A SU 460477 A1 SU460477 A1 SU 460477A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- rubber
- determining
- poisson ratio
- mold
- vulcanization
- Prior art date
Links
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
1one
Изобретение относитс к методам определений механических свойств резин.This invention relates to methods for determining the mechanical properties of rubbers.
Известен способ определени коэффициента Пуассона резин, заключающийс в осевом нагружении цилиндрического образца и измерении его размеров после нагружени при достижении равновесного состо ни . Однако этот способ характеризуетс систематической погрешностью измерений, обусловленной трением между торцом образца и деформирующим телом. Использование смазок с целью снижени трени делает испытание более трудоемким вследствие высоких требований, предъ вл емых к установке образца.There is a known method for determining the Poisson's ratio of rubber, which consists in axial loading of a cylindrical sample and measuring its dimensions after loading when an equilibrium state is reached. However, this method is characterized by a systematic measurement error due to friction between the end of the sample and the deforming body. The use of lubricants to reduce friction makes the test more time consuming due to the high demands placed on the installation of the sample.
Дл повышени точности измерений и производительности предлагаетс нагружение осуществл ть в вулканизационной пресс-форме в период вулканизации, а измерение размеров производить после окончани послевулканизационной усадки и извлечени вулканизата из пресс-формы.To improve measurement accuracy and productivity, loading is proposed to be carried out in a vulcanization mold during the vulcanization period, and dimensions are measured after the termination of the vulcanization shrinkage and extraction of the vulcanizate from the mold.
При осуществлении способа резиновый образец формуют и вулканизуют в цилиндрической пресс-форме плунжерного типа без выгекани резиновой смеси. Закладываема заготовка должна иметь диаметр, близкий кIn the process, the rubber specimen is molded and vulcanized in a cylindrical mold of a plunger type without a rubber mixture being fused. Laying the workpiece should have a diameter close to
диаметру пресс-формы, отношение которого к ее высоте должно быть в пределах 5-10. В услови х вулканизации при полном прогреве пресс-формы измер ют диаметр и высоту полости , заполненной вулканизатом. Затем вулканизированный образец извлекают из прессформы , охлаждают до комнатной температуры и после выдержки, достаточной дл достижени равновесного состо ни резины, измер ют диаметр и высоту издели . Результатов этих замеров достаточно дл определени коэффициента Пуассона по известным формулам .the diameter of the mold, the ratio of which to its height should be in the range of 5-10. Under vulcanization conditions, when the mold is fully heated, the diameter and height of the cavity filled with the vulcanizer are measured. Then, the vulcanized sample is removed from the mold, cooled to room temperature, and after a sufficient exposure time to achieve an equilibrium rubber condition, the diameter and height of the product is measured. The results of these measurements are sufficient to determine the Poisson's ratio using known formulas.
Предмет изобретени Subject invention
Способ определени коэффициента Пуассона резин путем осевого нагружени цилиндрического образца и измерени его размеров после нагружени при достижении равновесного состо ни , отличающийс тем, что, с целью повыщени точности и производительности , нагружение осуществл ют в вулканизационной пресс-форме в период вулканизации , а измерение размеров производ т после окончани послевулканизационной усадки и извлечени вулканизата из пресс-формы.The method of determining the Poisson's ratio of rubber by axial loading of a cylindrical sample and measuring its dimensions after loading while reaching an equilibrium state, characterized in that, in order to improve accuracy and performance, loading is carried out in a vulcanization mold during the vulcanization period, t after the termination of the post-vulcanization shrinkage and the recovery of the vulcanizate from the mold.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1799266A SU460477A1 (en) | 1972-06-13 | 1972-06-13 | The method of determining the rubber Poisson ratio |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1799266A SU460477A1 (en) | 1972-06-13 | 1972-06-13 | The method of determining the rubber Poisson ratio |
Publications (1)
Publication Number | Publication Date |
---|---|
SU460477A1 true SU460477A1 (en) | 1975-02-15 |
Family
ID=20518571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1799266A SU460477A1 (en) | 1972-06-13 | 1972-06-13 | The method of determining the rubber Poisson ratio |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU460477A1 (en) |
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1972
- 1972-06-13 SU SU1799266A patent/SU460477A1/en active
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