PROCEDURE FOR THE REDUCTION OF THE TREND TO THE CRACKING OF A THERMALLY SHRINKABLE SHEET.

摘要

IT IS A PROCEDURE FOR THE DECREASE OF THE PROPENSION TO THE FORMATION OF CRACKS IN A BAND OF HEAT RECOVERY MATERIAL. FIRST A POLYMER WITH A CROSS-DENSITY PREVIOUSLY GIVEN IS EXTRUDED TO FORM A PLASTIC BAND. THE PLASTIC BAND AFTER ITS COOLING HEATS UP TO A REDUCED TEMPERATURE FOR THE GENERATION OF ITS NUCLEUS AND AT A TEMPERATURE BELOW THE CRYSTALLINE AND CRYSTALLINE FUSION TEMPERATURE IS SPREADED WITH A GENERAL DISTRIBUTION ORIENTATION THE CROSS SECTION OF THE PLASTIC BAND. IN THIS WAY, STABILITY TO THE FORMATION OF CRACKS IN THE TRACTION PROCESS IS ESSENTIALLY INCREASED IN A SIMPLE PROCESSING AND AT THE PROPER PRICE.