Limit values for the structural design of IML (In-Mold Labeling) process products.
Release time:
2022-08-30
Source:
IML process productsStructural Q&A:
1. The overall thickness of small electronic cigarette components needs to be above 1.2mm, with a limit of 1.00mm. For larger products (door locks, vacuum cleaner covers, large panels), the overall glue position thickness should be above 2.5mm.
2. The slope of the product edge (draft angle) should be above 3 degrees.
3. If CNC processing is not used for the white edge, the normal standard for exposed white edges is 0.50mm, with a limit of 0.30mm.
4. The minimum R corner on the appearance should be 0.5mm; if too small, the sheet may crack during bending, leading to fine cracks and material run-off.
5. The thickness of the rear mold rib should be 0.60mm, and the draft angle of the rear mold rib should be 0.5 degrees.
6. The glue position should have structures like glue stealing, grooves, and sunken platforms, with a drop not exceeding 0.30mm. The edges should transition smoothly with a large C angle; otherwise, CNC processing is required in the later stage.
7. For mold penetration, there should be no R corner/C corner structures at the edge of the rear mold position to prevent thin steel at the mold penetration.
8.IML process productsDeformation after lamination is generally inward arching, with a deformation amount of more than 1.00mm.
9. If the IML process uses 2D die cutting, the edge can only wrap to the R edge and cannot wrap further down.
10.IML process productsIf there are through holes, the draft angle should be above 3 degrees.
11.IML process productsIf there are through holes, the diameter of the through hole should be above 1.0mm; if too small, it can only be achieved through CNC processing.
12. For larger products (door locks, vacuum cleaner covers, large panels), the outer diameter of the screw column needs to be between 4.2-4.3mm, and the inner hole should be 2.70mm to prevent surface screw column shrinkage marks. Also, ensure that the thickness of the glue position between the inner and outer diameters of the screw column is between 0.7-0.8mm.
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