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Standards to be followed for Reusable Aluminum Squeeze Tube
Release time：
2021-08-03
A. Mechanical properties:
Longitudinal tensile test results of Reusable Aluminum Squeeze Tube under standard operating conditions show that the tensile strength of Reusable Aluminum Squeeze Tube is at least 60N/mm.²，Minimum elongation after breaking not less than 25% and Vickers hardness at least 20HV
B. Process performance
1. The Reusable Aluminum Squeeze Tube is subjected to a tightness test in which the value of the pressure gauge does not drop.
2. The bending test of Reusable Aluminum Squeeze Tube requires that no visible cracks appear on the surface after the Reusable Aluminum Squeeze Tube is bent 180 degrees at a 25 mm bending radius with a nominal outside diameter of <12 mm.
3. Flattening experiments on Reusable Aluminum Squeeze Tube:
Reusable Aluminum Squeeze Tube is required to be pressed on a material testing machine to a position where the inner wall is at a distance equal to the wall thickness and no visible cracks are required on the surface of the Reusable Aluminum Squeeze Tube.
C. Surface quality:
1. The inner and outer surfaces of Reusable Aluminum Squeeze Tube shall be smooth and clean and shall not contain defects such as oil stain, corrosion spots, slag inclusion, peeling, crushing, stratification, etc.
2. The longitudinal indentation depth of Reusable Aluminum Squeeze Tube and minor local scratches on the outer surface must not exceed 0.03mm.
3. Reusable Aluminum Squeeze Tube allows 3 foams with a diameter of not more than 2.5mm or chain foams with a diameter of not more than 1mm per meter.
4. It is permissible to correct the Reusable Aluminum Squeeze Tube surface to remove minor, localized surface defects, but to ensure that the minimum wall thickness of the Reusable Aluminum Squeeze Tube meets the requirements.
5. Reusable Aluminum Squeeze Tube contains no more than 30 mg/m2 of residual material per unit inner surface area.
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