RO92113B1 - Procedeu de fabricare a contactelor carbonice - Google Patents

Procedeu de fabricare a contactelor carbonice

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Publication number
RO92113B1
RO92113B1 RO119024A RO11902485A RO92113B1 RO 92113 B1 RO92113 B1 RO 92113B1 RO 119024 A RO119024 A RO 119024A RO 11902485 A RO11902485 A RO 11902485A RO 92113 B1 RO92113 B1 RO 92113B1
Authority
RO
Romania
Prior art keywords
phenol
powder
formaldehyde
contacts
contact
Prior art date
Application number
RO119024A
Other languages
English (en)
Other versions
RO92113A2 (ro
Inventor
Alexandrina Obretin
Nicolae Duinea
Pavel Roman
Original Assignee
Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Industria Electrotehnica
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 Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Industria Electrotehnica filed Critical Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Industria Electrotehnica
Priority to RO119024A priority Critical patent/RO92113B1/ro
Publication of RO92113A2 publication Critical patent/RO92113A2/ro
Publication of RO92113B1 publication Critical patent/RO92113B1/ro

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Abstract

Inventia se refera la un procedeu de fabricare a contactelor carbonice destinate echiparii distribuitoarelor de prindere ale autovehiculelor, care, în vederea micsorarii caderilor de tensiune la capetele de contact, sunt placate la ambele capete cu un material metal-grafitic obtinut din pulbere de cupru electrolitic, pulbere de grafit natural purificat si pulbere de staniu în proportiile stabilite, iar pentru corpul contactului dintr-un amestec carbonic cu liant novolac fenol formaldehida cuprinzand grafit natural-cocs de petrol degazat novolac fenol-formaldehidic si hexametilentetramina în proportiile stabilite. Amestecurile de pulberi se introduc în matrita într-un raport de umplere adecvat sunt presate si tratate termic în vederea sintetizarii în cuptoare electrice clasice sau sub vid.
RO119024A 1985-06-03 1985-06-03 Procedeu de fabricare a contactelor carbonice RO92113B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO119024A RO92113B1 (ro) 1985-06-03 1985-06-03 Procedeu de fabricare a contactelor carbonice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO119024A RO92113B1 (ro) 1985-06-03 1985-06-03 Procedeu de fabricare a contactelor carbonice

Publications (2)

Publication Number Publication Date
RO92113A2 RO92113A2 (ro) 1987-07-30
RO92113B1 true RO92113B1 (ro) 1987-08-01

Family

ID=20117337

Family Applications (1)

Application Number Title Priority Date Filing Date
RO119024A RO92113B1 (ro) 1985-06-03 1985-06-03 Procedeu de fabricare a contactelor carbonice

Country Status (1)

Country Link
RO (1) RO92113B1 (ro)

Also Published As

Publication number Publication date
RO92113A2 (ro) 1987-07-30

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