Retratech
Retratech
is basically an oven equipped with two or for stations that simulate the passage of films in a shrink tunnel. The tests shall be carried out in both machine direction and transverse direction (to check whether the film is mono or bi-oriented). Test pieces are placed on a four stations bracket beneath a mobile oven: one station is connected to a displacement sensor (indicative method); the others are connected to a force sensor (ISO 14116 method). The oven is then lowered on the test specimens simulating the time of passing through a shrink tunnel. The thermical program (temperature, duration) is controlled by a PC software. During the test, force, displacement and temperature in the vicinity of the sample are recorded
Thermo-shrink films represent one of the main applications of plastics. They are widely used for packaging ensuring effective protection to corrosion and moisture, while maintaining the aesthetic of the wrapped object (transparency, printing, gloss, etc.).
To induce the shrinkage, films are stretched when they are warm to give an orientation to the macromolecules and then cooled to set their characteristics. To initiate the shrinkage, films are reheated during their use.
Confirm to
GB/T 34848-2017,ISO 14616-1997,DIN 53369-1976, NF T54-125
สินค้าที่เกี่ยวข้อง
Mitutoyo เครื่องวัดความหนา Mitutoyo Series 547
Mitutoyo Thickness Gages Series 547
COMETECH QC-548D2 (5kN)
COMETECH QC-548M1F
COMETECH QC-548M2F
COMETECH QC-528M1F (500N)
COMETECH QC-526D2 (20kN)
COMETECH QC-528D3
COMETECH QC-526M1F
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