RO99632B1 - Apparatus for measuring the austenite and delta ferrite content - Google Patents
Apparatus for measuring the austenite and delta ferrite contentInfo
- Publication number
- RO99632B1 RO99632B1 RO130709A RO13070987A RO99632B1 RO 99632 B1 RO99632 B1 RO 99632B1 RO 130709 A RO130709 A RO 130709A RO 13070987 A RO13070987 A RO 13070987A RO 99632 B1 RO99632 B1 RO 99632B1
- Authority
- RO
- Romania
- Prior art keywords
- electromagnet
- measuring
- circuit
- percentage
- role
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
Inventia se refera la un aparat destinat masurarii austenitei reziduale din otelurile carbon calite si a feritei delta din otelurile inoxidabile. Aparatul conform inventiei cuprinde o sonda electromagnetica unipolara, formata dintr-un electromagnet cu bobina aferenta, care are rolul de creare a câmpului magnetic, si un concentrator magnetic cu rolul de concentrare a fluxului magnetic suspendat elastic prin intermediul unui arc, electromagnetul fiind polarizat cu un curent variabil, crescator în trepte, furnizat de o sursa de curent , constituit dintr-un circuit integrat, tranzistoarele si grupul de rezistente aferente, sursa fiind comandata printr-o logica de validare ceas si o baza de timp, care asigura pasul treptelor decurent, forma si marimea lor fiind staiblita de un generator, un circuit de control al sursei, un circuit de masurare, urmat de un decodificator si un circuit de afisare a intensitatii curentului prin electromagnet, care este corelata, prin diagrama realizata prin masuratori pe probe etalon, cu procentul de austenita reziduala din oteluri carbon calite sau cu procentul de ferita delta din oteluri inoxidabile.The invention relates to an apparatus for measuring residual austenite of carbon steels and a ferrite delta in stainless steels. According to the invention, the apparatus comprises a unipolar electromagnetic probe, consisting of an electromagnet with the associated coil, which has the role of creating the magnetic field, and a magnetic concentrator with the role of concentrating the elastically suspended magnetic flux through a spring, the electromagnet being polarized with a variable current, step-wise, supplied by a current source consisting of an integrated circuit, the transistors and the associated resistor group, the source being controlled by a clock validation logic and a time base that provides the step of the downstream steps, their shape and size being set by a generator, a source control circuit, a measuring circuit, followed by a decoder and a current intensity display circuit by means of an electromagnet, which is correlated, through the diagram, with the percentage of residual austenite of carbon steels or the percentage of ferrite delta in stainless steels e.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO130709A RO99632B1 (en) | 1987-12-02 | 1987-12-02 | Apparatus for measuring the austenite and delta ferrite content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO130709A RO99632B1 (en) | 1987-12-02 | 1987-12-02 | Apparatus for measuring the austenite and delta ferrite content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RO99632B1 true RO99632B1 (en) | 1990-08-30 |
Family
ID=40907690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO130709A RO99632B1 (en) | 1987-12-02 | 1987-12-02 | Apparatus for measuring the austenite and delta ferrite content |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO99632B1 (en) |
-
1987
- 1987-12-02 RO RO130709A patent/RO99632B1/en unknown
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