Description

Gradient Heat Seal Tester Application
Gradient Heat Seal Tester is professionally designed for the precise measurement of five groups of sealing temperature, time and pressure. Gradient Heat Seal Tester is for the determination of the heatsealability of a surface, or sealant layer of films, laminates, composites and polymers etc. How well the material heatseals is expressed quantitatively as seal strength as a function of the sealing conditions of temperature, time and pressure. It conforms to standards of ASTM F***9, QB/T ***8 and YBB *******3.
Gradient Heat Seal Tester Principle
Place a sample between two-heated sealing jaws of Heat Seal Tester with flat surfaces when the required temperature reaches equilibrium. The upper seal jaw, driven by a gas cylinder, is pushed down,  to exert a certain pressure on the sample and remain for some time. When the preset sealing time ends, the upper sealing jaw returns to its original position and the whole heatsealability testing process finishes.
Gradient Heat Seal Tester Features
1.    Five groups sealing temperature can be measured with one test
2.    Proximity and pressure sensor for precise dwell time and sealing pressure control
3.    P.I.D. for precise sealing temperature control
4.    Uniform heating by aluminum encapsulated sealing jaws and no inhomogeneous heating
5.    Independent heating of upper and lower sealing jaws
6.    Sealing jaw customization available in term of dimension, shape and surface
Gradient Heat Seal Tester Specification
Sealing temperature      Room Temperature ~ **0℃
Deviation                  ±0.2℃
Dwell time                 0.1 s~**0H
Sealing pressure         0.*5 MPa ~ 0.7 MPa
Sealing Jaws            *0mm×*0mm×5(Sealing Surface)(Customization Available) 
                           Double Heating of Upper and Lower Jaws
Gas Pressure                   0.5 MPa~0.7 MPa of Air
Dimensions                    **5mm (L) ***0mm (W) ***0mm (H)
Port Size                         Ф6 mm PU Hose
Gradient Heat Seal Tester Standards
ASTM F***9, QB/T ***8, YBB *******3