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Cryogenics: new superficial-hardening materials.

Cryogénie : nouveaux matériels de durcissement superficiel.

Author(s) : DESPAIGNE G., PIERSON V.

Type of article: Article

Summary

Biref description of two types of cryogenic equipment for surface hardening of products for quick freezing. The first system is a moving belt, made from polyester, drenched with nitrogen which ensures surface hardening of the underside of the product. A liquid nitrogen pump recycles the excess which is sprayed over the top of the product. The second system is used before or after a mechanical freezer which handles small sized products. A stainless vibrating conveyor moves the product, liquid nitrogen flows in a thin layer in the bottom and the excess is recycled by the same pneumatic pump. J.R.

Details

  • Original title: Cryogénie : nouveaux matériels de durcissement superficiel.
  • Record ID : 1995-1724
  • Languages: French
  • Source: La revue pratique du froid et du conditionnement d'air - n. 793
  • Publication date: 1994/04
  • Document available for consultation in the library of the IIR headquarters only.

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