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FRICTION COUPLE MATERIALS FOR HERMETIC COMPRESSORS.

[In Czech. / En tchèque.]

Author(s) : JANCOVIC V.

Type of article: Article

Summary

THERE ARE 4 MAIN KINDS OF WEAR: ADHESION WEAR, FRICTION WEAR, SURFACE FATIGUE WEAR AND ABRASION WEAR, AND OTHER, THOUGH LESS IMPORTANT, KINDS. A DEFINITE DETERMINATION OF A FRICTION CHARACTERISTIC IS THEREFORE HARDLY POSSIBLE. THERE EXISTS NO STANDARD METHOD, NOR TEST PROCEDURE OR EQUIPMENT FOR DETERMINING ABSOLUTE VALUES NEEDED FOR RESISTING WEAR. ANTIFRICTION PROPERTIES WERE TESTED, AND IT WAS FOUND THAT GREY CAST-IRON MATERIALS WITH A PURELY PERLITIC BASIC METAL MASS ARE THE MOST SUITABLE MATERIALS FOR THE FRICTION COUPLES OF COMPRESSORS. A LONG-LASTING COMPRESSOR TEST IN AN R12 CIRCUIT IS STILL UNDERWAY AFTER MORE THAN 140,000 WORKING HOURS.

Details

  • Original title: [In Czech. / En tchèque.]
  • Record ID : 1991-2105
  • Languages: Czech
  • Source: Prum. Potravin - vol. 41 - n. 11
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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