RE: Do you know the inspection standards for Prepainted steel coils PPGI?
askaluadmin > 06-19-2023, 09:25 AM
Explanation:
The first section describes the specifications for the size of the prepainted steel coils. The width should have an allowable error of ±2mm, the cutting line should be straight, the cut surface should be neat, and the thickness tolerance should be ±0.03mm.
The second section focuses on the coating of the steel coils. It should meet the requirements specified in the contract, have a uniform color without any obvious differences, and the thickness of the coating should comply with the contract specifications.
The third section discusses the surface inspection of the coils. The surface should be flat without any visible unevenness, warping, or deformation. It should also be free from oil contamination, surface bubbles, shrinkage cavities, or any other defects that could affect the usability. The defective portion of each coil should not exceed 5% of the total length, and there should be no noticeable scratches, bumps, or scars.
The fourth section outlines the labeling requirements for the steel coil packaging. The package should have clear and conspicuous markings that include the product name, specification, and manufacturer. Additionally, the packaging mark should include the supplier's name or trademark, standard number, grade, specification, weight, and an identification number that can trace the steel to its smelting origin. The quality certificate should include the buyer's name, contract number, product name, standard number, specification, grade, identification number, weight, number of pieces, production date, and delivery date. The mark should also indicate the weight of the substrate coating, type of finish, and color.
Rewrite:
Inspection Standards for Color-Coated Steel Coils
Size Specifications
The width of the prepainted steel coils must have an allowable error of ±2mm.
The cutting line should be straight and the cut surface should be neat.
The thickness tolerance is ±0.03mm.
Coating Requirements
The type of coating applied must meet the specified requirements in the contract.
The color of the coating should be uniform without any noticeable differences.
The thickness of the coating should comply with the specifications laid out in the contract.
Surface Inspection
The surface of the coils should be flat and free from visible unevenness, warping, or deformation.
There should be no oil contamination, surface bubbles, shrinkage cavities, or any other defects that could negatively impact their use.
The defective portion of each coil should not exceed 5% of the total length, and there should be no noticeable scratches, bumps, or scars.
Labeling Requirements
The packaging must include clear and conspicuous markings with the product name, specification, and manufacturer.
The packaging mark should also feature the supplier's name or trademark, standard number, grade, specification, and weight.
An identification number that can trace the steel to its smelting origin should be indicated on the packaging.
The quality certificate should include the buyer's name, contract number, product name, standard number, specification, grade, identification number, weight, number of pieces, production date, and delivery date.
The mark should also clearly state the weight of the substrate coating, type of finish, and color.