et

invar

1 substantive

Terminological databases

Engineering, Manufacturing and Construction

Metroloogia terminibaas

ID 1200092 Last modified 02.11.2026
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Domain metrologymeasuring instrumentsmeasuring procedures
  • nikli-raua sulam, mis on märkimisväärne oma erakordselt väikese soojuspaisumisteguri (CTE ehk α) poolest
  • nickel–iron alloy notable for its uniquely low coefficient of thermal expansion (CTE or α)
invar
Usage examples
  • Invari kasutatakse olukordades, kus on nõutav suur mõõtmete stabiilsus, nt täppisinstrumentides, kellades, seismilistes nihkemõõturites, värviteleviisorite kineskoopide varimaski raamides, mootoriklappides ning suurtes lennukikonstruktsioonides. Invari saab töödelda laseriga pulbrikihi sulatamise meetodil, mis pakub erilist huvi komposiitmaterjalide vormide ja täppisinstrumentide valmistamisel, kuna protsess võimaldab luua peaaegu lõpliku kujuga osiseid, mille madal soojuspaisumistegur säilib ka vahetult pärast valmistamist.
FeNi36 symbol
64FeNi symbol
invar
Usage examples
  • Invar is used where high dimensional stability is required, such as precision instruments, clocks, seismic creep gauges, color-television tubes' shadow-mask frames, valves in engines and large aerostructure molds. Invar can be processed by laser powder bed fusion (LPBF), which is of particular interest for composite-tooling and precision-instrument applications because the process can produce near-net-shape components whose low coefficient of thermal expansion is retained in the as-built condition.
FeNi36 symbol
64FeNi symbol

Word forms

Inflection Type 2e

invar invarid
invari invarite
invarit invareid

Etymology

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