The hottest spot check of Guangzhou Bureau of qual

Spot check by Guangzhou Municipal Bureau of Quality Supervision: one batch of industrial aluminum and aluminum alloy profile products failed to meet the film thickness

on November 29, the official of Guangzhou Municipal Bureau of quality and Technical Supervision announced the results of quality supervision and spot check of Guangzhou aluminum alloy building profile (including industrial aluminum profile) products in 2018. A total of 15 batches of products produced by 14 enterprises were spot checked. After inspection, one batch of products produced by one enterprise did not meet the standard requirements

this spot check is based on gb/t 5237 Aluminum alloy building profiles Part 1 base materials, gb/t 5237 Aluminum alloy building profiles Part 1: base materials, gb/t 5237 Aluminum alloy building profiles, Part 2: anodized profiles, gb/t 5237 Aluminum alloy dynamic rings are allowed to be tested in specific operation. Building profiles in static self loading systems Part 2: anodized profiles, gb/t 5237 Aluminum alloy makes your work more secure. Gold architectural profiles Part 3 electrophoretic painted profiles, gb/t 5237 Aluminum alloy building profiles Part 3: electrophoretic painted profiles, gb/t 5237 Aluminum alloy building profiles - Part 4: powder coated profiles, gb/t 5237 Aluminum alloy building impact test cryogenic apparatus for low temperature test of materials building profiles Part 4: powder sprayed profiles, gb/t 5237 "Aluminum alloy building profiles Part 5 fluorocarbon paint spraying profiles for imported or domestic equipment", gb/t 5237 Aluminum alloy building profiles Part 5: spray painted profiles, gb/t aluminum and aluminum alloy extruded profiles for general industrial use and other standards, for the wall thickness, mechanical properties, chemical composition, film properties and coating properties of aluminum alloy building profiles; The wall thickness, mechanical properties, chemical composition, film thickness, hole sealing quality, paint film adhesion, coating adhesion, boiling water resistance and other items of industrial or indoor decorative aluminum materials shall be tested

one batch of industrial aluminum and aluminum alloy profile products with unqualified film thickness was selected in this spot check. The performance of composite film is a comprehensive index to measure the service life of aluminum alloy profile. Unqualified film thickness will directly affect the wear resistance, corrosion resistance and appearance quality of profile surface. The main reasons for the disqualification are that the enterprise has not strictly controlled the surface treatment process of the profile, the inspection is not strict, or the factory inspection is not carried out