METHOD OF TESTING COMPOSITE MATERIAL CONSTITUTING MOVABLE PART FOR SEALED TYPE COOLING COMPRESSOR AND SEALED TYPE COOLING COMPRESSOR WITH PART CONSISTING OF COMPOSITE MATERIAL SELECTED BY SAID METHOD

摘要

The invention relates to a method for determining a composite material constituting the parts in motion in a refrigerating compressor hermetic. / p & & p & the process of the invention is characterizes in that a composite material, whose pharmacological mechanical and thermal generated initial satisfy the conditions in the compressors is in place during a first dureet1 determined in a medium containing the chemical products which are located in a compressor, at a temperature of the test corresponding to the maximum operating temperature of a compressor and in that at the end of this first dureet1, one measures the pharmacological mechanical and chemical, they are compared with the pharmacological mechanical and or the initial chemical and evaluated by calculation that they are when the material will have been used in an environment of the compressor during a second upper dureet2 to the first dureet1 and in that it is then carried out of the pieces with the material if the pharmacological evaluated satisfy the required after a time of use corresponding to the second dureet2.