SU140474A1 - Electrical composite resistance - Google Patents
Electrical composite resistanceInfo
- Publication number
- SU140474A1 SU140474A1 SU660604A SU660604A SU140474A1 SU 140474 A1 SU140474 A1 SU 140474A1 SU 660604 A SU660604 A SU 660604A SU 660604 A SU660604 A SU 660604A SU 140474 A1 SU140474 A1 SU 140474A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- resistance
- electrical composite
- composite resistance
- aging
- heating
- Prior art date
Links
Landscapes
- Thermistors And Varistors (AREA)
- Organic Insulating Materials (AREA)
Description
Известные электрические композиционные сопротивлени на основе органических св зующих материалов термически не стабильны и имеют высокий коэффициент старени .The known electrical composite resistances based on organic binding materials are thermally unstable and have a high aging rate.
Сопротивление, согласно изобретению, лишено этих недостатков. Сущность изобретени заключаетс в том, что в качестве основы сопротивлени применена термореактивна смола, к которой добавлено 4-12% термопластичной смолы.The resistance according to the invention is free from these disadvantages. The essence of the invention is that a thermosetting resin is applied as the basis of resistance, to which 4-12% of a thermoplastic resin is added.
При нагреве предлагаемых сопротивлений до температуры, близкой к температуре плавлени термопластичного компонента, можно достичь необратимого увеличени сопротивлени , которое может регулироватьс дл данного состава композиции температурой и длительностью нагрева . Нагрев во всех случа х настолько непродолжителен, что не приводит к разрушению термореактивной основы.By heating the proposed resistances to a temperature close to the melting point of the thermoplastic component, an irreversible increase in resistance can be achieved, which can be adjusted for a given composition by the temperature and duration of heating. Heating in all cases is so short that it does not lead to the destruction of the thermosetting base.
Если при этом температура разм гчени термопластичного компонента находитс в пределах рабочего интервала температур сопротивлени , то незначительное необратимое увеличение сопротивлени имеет место и при работе сопротивлени , т. е. коэффициент старени приобретает положительный знак.If at the same time the softening temperature of the thermoplastic component is within the working range of resistance temperatures, then a slight irreversible increase in resistance also occurs when the resistance is working, i.e., the aging factor takes on a positive sign.
Подбором вида и количества термопластичных смол или их смесей можно достичь частичной или полной компенсации отрицательного по знаку коэффициента старени , либо придать коэффициенту старени положительный знак.Selection of the type and amount of thermoplastic resins or their mixtures can be achieved by partially or fully compensating for the negative aging coefficient, or by giving the aging coefficient a positive sign.
К сопротивлени м, работающим при температуре до 150°, наиболее подход щим вл ютс добавки типа полистирола, полиуретана, полиизобутилена , температура плавлени которых достаточно высока (180-220°), а температура разм гчени ниже 120-150°.For resistances operating at temperatures up to 150 ° C, the most suitable are additives such as polystyrene, polyurethane, polyisobutylene, the melting point of which is rather high (180-220 °) and softening temperature below 120-150 °.
№ 140474- 2 Предмет изобретени No. 140474- 2 The subject invention
Электрическое композиционное сопротивление, на основе органмческих св зующих материалов, отличающеес тем, что, с целью увеличени стабильности и уменьшени коэффициента старени , в качестве основы сопротивлени применена термореактивна смола, к которой добавлено 4-12% термопластичной смолы.Electrical compositional resistance based on organo-binding materials, characterized in that, in order to increase stability and decrease aging rate, a thermosetting resin is applied as the basis of resistance, to which 4-12% of thermoplastic resin is added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU660604A SU140474A1 (en) | 1960-03-25 | 1960-03-25 | Electrical composite resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU660604A SU140474A1 (en) | 1960-03-25 | 1960-03-25 | Electrical composite resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU140474A1 true SU140474A1 (en) | 1960-11-30 |
Family
ID=48296476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU660604A SU140474A1 (en) | 1960-03-25 | 1960-03-25 | Electrical composite resistance |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU140474A1 (en) |
-
1960
- 1960-03-25 SU SU660604A patent/SU140474A1/en active
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