LLC Research and Production Center "Linvar" - a developer of precision casting alloys with a given, including including the minimum thermal expansion and the manufacturer of products from them with the highest possible precision.

How we are working

Technical task

We make those. task together with you

Harmonization

We agree with you on those. task and terms

Alloy

We develop alloy

Rigging

Preparing the rig

Casting

Casting the workpiece

Technical task

We make those. task together with you

Harmonization

We agree with you on those. task and terms

Alloy

We develop alloy

Rigging

Preparing the rig

Casting

Casting the workpiece

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Our alloys

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31NKML

TCLE up to 300 and 400 ° С

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31NKUL-1

TCLE up to 200.300 and 350 ° С

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31NKUL-2

TCLE up to 200.300 and 350 ° С

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32NKBL-1, 2

TCLE up to 100 and 200 ° С

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32NKMBL

TCLE up to 200 and 300 ° С

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32NKKHBL, 32NKKHBL-1

TCLE up to 200 and 300 ° С

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33NKUL, 34NKUL, 30NKUL

TCLE up to 200.300 and 350 ° С

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36NBL-1

TCLE up to 100 and 200 ° С

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Our products

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Frame

TCLE20-100≤1,0×10-6 K-1

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Tooling

Tooling for products made of fiberglass
TCLE20-200≤3,5×10-6 K-1

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Casting

Casting of the laser system supporting structure
TCLE20-100≤1,5×10-6 К-1

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Casting

Casting of the supporting assembly of a silicon mirror of a super-power technological laser
TCLE20-100≤2,3×10-6 К-1

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Supporting part

Supporting part in the structure of the opto-electronic device
TCLE20-100≤7,5×10-6 К-1

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Supporting part

Supporting part in the structure of the spectrometer
TCLE20-100≤1,5×10-6 К-1

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Supporting part

Supporting part in the structure of the spectrometer
TCLE20-100≤1,5×10-6 К-1

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Casting

Casting of the optoelectronic device part
TCLE20-100≤5,0×10-6 К-1

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Substrate

Substrate of the metal mirror of the laser
TCLE20-100≤1,0×10-6 К-1

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Casting

Casting of the optoelectronic device part
TCLE20-100≤1,0×10-6 К-1

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Frame

Telescope frame ready for assembly
TCLE20-100≤1,0×10-6 К-1

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Stiffening ring

Stiffening ring
TCLE20-100≤1,5×10-6 К-1

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Stiffening ring

Stiffening ring
TCLE20-300≤3,2×10-6 К-1

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Our Customers

Our story

The center was founded in 1992 on the basis of the Ural Polytechnic Institute named after V.I. CM. Kirov and Uralsky Optical and Mechanical Plant.

  • 1. Developments

Today we offer our customers about 20 alloys of our own design with thermal expansion in the range from quartz glass (TCLE 0.5 • 10-6 K-1) to titanium (TCLE 8.5 • 10-6 K-1). A number of alloys included in this group have special properties, namely: improved casting properties, high damping characteristics, extended intervals operating temperatures, increased corrosion resistance.

  • 2. Application

Products made from Invar alloys are successfully used in areas where thermal stability and minimum stresses at the joints of the elements. These are the following areas of application:

  1. - parts that are compatible with materials with a low thermal coefficient of linear expansion (ceramics, optics of all types, in including quartz, crystalline silicon, germanium, graphite, etc.);
  2. - precision machine tools (basic parts; fasteners; lathe guides, jig boring and grinding machines);
  3. - laser technology (basic elements of lasers; elements that mate with power optics and so on Further);
  4. -products of measuring, control and adjustment and metrological equipment (basic parts spectrometers, measuring machines, stands);
  5. - high-speed precision presses (plungers, stands, body units);
  6. - castings of thermostable tooling of any complexity for the production of parts from polymer-composite materials for aviation and other types of industry (dimensions tooling parts can be several meters; mastered the manufacture of these parts from foundry invars weighing several tons);
  7. - astronomical technology (frames for optical products, telescopes);
  8. - cryogenic technology;
  9. -our products are capable of functioning in the range of plus temperatures up to 500 ° C and minus temperatures down to -269 ° C.
  • 3. Goals and objectives

  1. - the use of our invar and super-invar alloys instead of standard materials (steel, cast iron, aluminum alloys) allows to increase the accuracy of large-sized products during vibrations temperatures up to 15-50 times;
  2. - production of new products with previously unattainable accuracy parameters;
  3. - saving metal materials and labor costs during machining, since the shape produced shaped casting is as close as possible to the required shape of the part;
  4. - replacement of expensive, poorly processed materials used as materials with given thermal expansion (ceramics, sitalls, molybdenum, tungsten, etc.);
  5. - the development of casting alloys with thermal expansion approaching zero.

This is what our work looks like now

Articles and patents of our colleagues

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Chermensky V.I., Kharchuk M.D., Konchakovsky I.V., Antonov V.V., Vorobiev S.B., Ushakov A.R.
Sat. scientific. tr. FSUE "VIAM" SSC RF. Moscow, 2017.S. 336 - 349

New precision alloys with minimal thermal expansion and increased casting properties. All-Russian Scientific and Technical Conference "Modern Achievements in the field of metallurgy, casting technologies, deformation, heat treatment and anti-corrosion protection of light alloys "

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Ogorodnikova O.M., Rabinovich S.V., Kharchuk M.D., Chermensky V.I.
FMM. 1993, T76, issue 4. P. 118 - 122

Effect of nickel segregation on the temperature coefficient of linear expansion superinvars.

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Ogorodnikova O.M., Chermenskaya E.V., Rabinovich S.V., Grachev S.V.
FMM. 1999, T88, issue 4. S. 46 - 50

Temperature coefficient of linear expansion of foundry invars Fe-Ni and superinvars Fe-Ni-Co.

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Chermensky V.I., Rabinovich S.V., Kharchuk M.D., Ivanov V.I., Mayorov A.V.
Aviation industry. 2008, No. 3. P. 37 - 39

Casting invar alloys for molding equipment in the production of special precise composite structures.

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Grachev S.V., Chermensky V.I., Kharchuk M.D., Konchakovsky I.V., Zhilin A.S., Tokarev V.V., Nikiforova S.M., Venediktova I.A.
Izvestiya VUZov Oil and Gas. 2012, No. 3. P. 86 - 90

Influence of composition on the temperature dependence of the thermal properties of foundry invar and superinvar alloys

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Ushakov A.R., Mikhnev M.M., Chermensky V.I., Kharchuk M.D., Konchakovsky I.V.
Composite world. 2013, No. 6 (51). Pp. 32 - 33

Shaping tooling made of casting invars in PCM technology

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SPC "Linvar"
Federal business magazine ТСР. 2017, No. 1-2 (120-121). S.58-59.

Alloys for high precision instruments

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O. M. Ogorodnikova, V. I. Chermensky, I.V. Konchakovsky
Solid-state phenomena. 2017, vol. 265, p. 1142 - 1147

Simulation of centrifugal casting and super-invar alloy structure Fe-Ni-Co

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Rabinovich S.V., Chermensky V.I. and others RF2183228, MKI S.22 S.38 / 52. Bul. patent. inform. 2002, no.16. C.5
PATENT

Iron based casting alloy

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Rabinovich S.V., Chermensky V.I. et al. RU 2243281 (51) IPC7 C 22 C 38/12. Feder. serving by intelligence. own. Published on December 27, 2004. Bul. No. 36.
PATENT

Iron based casting alloy

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Rabinovich S.V., Chermensky V.I. et al. RU 2266972 C1 (51) MPK7 C 22 C 38/12. Feder. serving by intelligence. own. Published on December 27, 2005. Bul. No. 36.
PATENT

Iron based casting alloy

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Our contacts

Addresses in Yekaterinburg:
st. Komsomolskaya 45, building 1, office. one

Production:

st. Admiral Ushakov, 36

For correspondence:

1 Gastello street, P.O. Box 106. Zip code 620076

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