Questions and Answers |
 Interesting article: Features profilesFeatures profilesToday the consumer is very difficult orient on the window market. Thousands of companies now offer profiles of domestic and foreign production. How to choose the best window to his apartment, cottage cottage or office? Of course, there are dozens GOST and international legal instruments used by professionals, but also for ordinary consumers to understand them - much difficulty. Quality control of PVC profiles carried out in two directions: line shape and size profile of the standards and assessment of physical and mechanical properties of the profile. Monitoring is usually conducted at the factory and in special laboratories. The profile should be free of dents, pollution, changes color, important segments of forthrightness, lack of curling, the main surface must be flat. Among other things, the size of the internal profile must conform to the size of the metal reinforcing profiles. Straightness, twisting angle, flatness perpendicular sides, the easy installation of reinforcement metal profile - mandatory testing for the main chamber window profile system. Physico-mechanical control is carried out twice a day. The quality profile should not noticeably change within 5 hours, tested the strength of the profile of the impact load drop (in temperatures from 0 to-10S allowed only one ruined piece). There are also other tests for strength. By periodic tests conducted in special laboratories equipped with necessary equipment, are also defining the density of the material point Vik, evaluation time thermal stability. These tests determine the correctness of the songs. At the finished product manufacturer or a consumer evaluate the operating properties. If a domestic enterprise managed to get German quality certificate from the IFT (Institute of window technology in Rosenheim), it is an occasion for a well-deserved pride in the quality of its product (extruded PVC profiles and articles thereof), and for the consumer - the guarantee of the right choice. |
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