BE1000602A6 - Testing aluminium alloys for effects of ageing - repeatedly checking electric resistance correlated with temp. to derive prediction curve - Google Patents

Testing aluminium alloys for effects of ageing - repeatedly checking electric resistance correlated with temp. to derive prediction curve Download PDF

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Publication number
BE1000602A6
BE1000602A6 BE8700587A BE8700587A BE1000602A6 BE 1000602 A6 BE1000602 A6 BE 1000602A6 BE 8700587 A BE8700587 A BE 8700587A BE 8700587 A BE8700587 A BE 8700587A BE 1000602 A6 BE1000602 A6 BE 1000602A6
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BE
Belgium
Prior art keywords
ageing
temp
effects
electric resistance
aluminium alloys
Prior art date
Application number
BE8700587A
Other languages
Dutch (nl)
Original Assignee
Maximus Patrick
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 Maximus Patrick filed Critical Maximus Patrick
Priority to BE8700587A priority Critical patent/BE1000602A6/en
Application granted granted Critical
Publication of BE1000602A6 publication Critical patent/BE1000602A6/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

One of the signs of ageing in a structure made from an aluminium alloy is that its electrical resistance varies with time. The present system repetitively measures the resistance and correlates the measurement with the temp. of the structure. The resultant data can be used to produce very accurate ageing curves for use in research laboratories.

Description

       

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



  Beschrijving -----------Titel meetmethode voor het meten van de veroudering van aluminiumlegeringen, tijdens het verouderingsproces. 



   Het technisch gebied waarop deze methode kan worden   toegepast, is   voor het verouderen van aluminium-
1. legeringen. 



   Wil een legering voldoen aan de kwaliteitsnormen, wordt zij veroudert, waardoor de geleidbaarheid en de treksterkte aanzienlijk verbetert worden. 



   Dit wordt bekomen door het materiaal op een bepaalde
2. temperatuur en gedurende een zekere tijd te verwarmen. 



   Deze twee parameters bepalen de mate van veroudering. 



   Tegenwoordig is het zo dat deze parameters bepaald worden door kleinschalige verouderingsproeven, (verouderen van monsters op verschillende temperaturen)
3. en door ervaring. 



   Deze proeven zijn echter geen garantie voor de gewenste resultaten. 



   Dit komt grotendeels omdat de veroudering niet kan gemeten, en dus ook niet geregeld worden. 



   4. Een oplossing voor deze problemen wordt verkregen door continue temperatuurgecorreleerde weerstandsmetingen toe te passen. 



   Door de weerstand te correleren in functie van de temperatuur kunnen we dus de weerstandsverlaging meten
5. in functie van de veroudering. 



   We meten   m. a. w.   de veroudering tijdens het proces en daardoor krijgen we een direkte controle op de zaak, zodat indien nodig eventuele temperatuurswijzigingen tijdens het proces kunnen gebeuren. 



   6. Als de weerstand, de gewenste waarde bereikt heeft (volgens   norm),   kan het proces worden gestopt. 

 <Desc/Clms Page number 2> 

 



  Hierdoor krijgen we een aanzienlijke kwaliteitsverbetering van het produkt. 



  Via deze meetmethode kan men zeer goed verouderingkurven maken, zodat deze ook interessant wordt voor onderzoekslaboratoria.



   <Desc / Clms Page number 1>
 
 EMI1.1
 



  Description ----------- Title measuring method for measuring the aging of aluminum alloys, during the aging process.



   The technical area in which this method can be applied is for the aging of aluminum
1.alloys.



   For an alloy to meet quality standards, it ages, significantly improving conductivity and tensile strength.



   This is achieved by the material on a particular
2. temperature and heat for a certain time.



   These two parameters determine the degree of aging.



   Today, these parameters are determined by small-scale aging tests (aging of samples at different temperatures)
3. and through experience.



   However, these tests are not a guarantee of the desired results.



   This is largely because aging cannot be measured, and therefore cannot be controlled.



   4. A solution to these problems is obtained by using continuous temperature-correlated resistance measurements.



   By correlating the resistance in function of the temperature, we can therefore measure the decrease in resistance
5. in function of aging.



   We measure m. A. W. the aging during the process and as a result we get a direct check on the matter, so that any temperature changes during the process can happen if necessary.



   6. When the resistance has reached the desired value (according to standard), the process can be stopped.

 <Desc / Clms Page number 2>

 



  This gives us a significant quality improvement of the product.



  This measurement method makes it possible to make aging curves very well, so that it also becomes interesting for research laboratories.

Claims (1)

EMI3.1  EMI3.1   Conclusie --------Ik vraag bescherming voor de continue gecorreleerde weerstandsmetingen, toegepast in het verouderingsproces, waardoor de veroudering gemeten en of geregeld kan worden. Conclusion -------- I ask for protection for the continuously correlated resistance measurements, applied in the aging process, so that the aging can be measured and / or controlled.
BE8700587A 1987-05-22 1987-05-22 Testing aluminium alloys for effects of ageing - repeatedly checking electric resistance correlated with temp. to derive prediction curve BE1000602A6 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE8700587A BE1000602A6 (en) 1987-05-22 1987-05-22 Testing aluminium alloys for effects of ageing - repeatedly checking electric resistance correlated with temp. to derive prediction curve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE8700587A BE1000602A6 (en) 1987-05-22 1987-05-22 Testing aluminium alloys for effects of ageing - repeatedly checking electric resistance correlated with temp. to derive prediction curve

Publications (1)

Publication Number Publication Date
BE1000602A6 true BE1000602A6 (en) 1989-02-14

Family

ID=3882689

Family Applications (1)

Application Number Title Priority Date Filing Date
BE8700587A BE1000602A6 (en) 1987-05-22 1987-05-22 Testing aluminium alloys for effects of ageing - repeatedly checking electric resistance correlated with temp. to derive prediction curve

Country Status (1)

Country Link
BE (1) BE1000602A6 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101929967B (en) * 2010-01-19 2012-06-06 南京钢铁股份有限公司 Method for detecting Nb (C, N) dissolving temperature of low-carbon microalloy steel by resistivity

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101929967B (en) * 2010-01-19 2012-06-06 南京钢铁股份有限公司 Method for detecting Nb (C, N) dissolving temperature of low-carbon microalloy steel by resistivity

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