Things to Be Noted When Carton Inspection - Haida Instruments

Things to Be Noted When Carton Inspection - Haida Instruments
    According to the performance requirements of corrugated boxes, Dongguan Haida Instrument & Equipment Co., Ltd. provides guidance on the selection of material properties and carton structure. For carton inspection requirements, these characteristics and quality levels are determined based on the purpose of use of the corrugated boxes, the handling and environmental impacts they will experience. This specification specifies many packaging rules, including the specific requirements for the available materials, box type, sealing methods, and other structural details allowed by the shipping container. Table 1 Corrugated carton size categories Premium products First-class products Qualified products Single corrugated ± 3 ± 4 ± 4 Double corrugated ± 5 ± 5 ± 6 Three corrugated ± 6 ± 8 ± 10 Appearance Corrugated carton Appearance should be consistent with Table 2 Table 2 Corrugated box Appearance Item Excellent product First-class product Quality goods box inside and outside surfaces are not allowed to have damage and stains Not allowed to have obvious permission Not more than the cut-off surface Crack width ≤ 3mm ≤ 5mm ≤ 8mm Case 1-3 Face two diagonal lines The difference ≤ 3mm ≤ 5mm ≤ 7mm Carton lingual width 30mm ～ 50mm Indentation line width Single corrugated ≤ 12mm Double corrugated ≤ 17mm Three corrugated ≤ ≤ 20mm Crimped line Quality pleated line centered, no broken line allowed, no wall is allowed Excessive indentation box angle must not have corner box angle hole minimum diameter ≤ 2mm no obvious wrap angle ≤ 4mm wrap angle does not affect the use of ≤ 5mm nails from the nail to close the width of the tongue 35 ~ 50mm , the middle line stitching should be neatly arranged Evenly. The nail distance is not more than 80mm and the distance from the bottom is less than 20mm . Nailed and nailed, there must be no overlapping nails, no nails, no corners, etc. Stud Coated Adhesive Quality Nail Box Corrugated Box Use flat yarn should not have rust, peeling, cracking, or other defects in use. Adhesive Box Carton Connector Bonded lap tongue width not less than 30mm . The adhesive is evenly coated and there should be no adhesive overflow seams.
Corrugated box empty box compression standard value calculation Corrugated box empty box compression test standard value should be calculated according to the following formula: where: ( Model: HD-501-600)
Empty tank compression standard value, N;
Corrugated carton contents, kg;
Gravity acceleration, ;
Space height of warehouse or transport vehicle, m; ( space height of transport vehicle is generally calculated as 2.7m )
Corrugated box height, m;
Inferior coefficient.
The coefficient of deterioration of the corrugated carton should be selected in Table 3 according to the conditions of use. Table 3 Corrugated carton deterioration coefficient Storage vehicle transportation superior products First-class products Qualified products Premium products First-class products Qualified products cannot withstand any load, 8.04.53.010.07.05.0 Corrugated carton with partial support structure 4.53.02.06.04.53 .0 content can withstand most of the load 3.02.01.54.03.02.0
Rolling cover endurance should meet the requirements in the table. Table 4 Corrugated box rolling cover folding excellent products First-class products No cracks in the surface layer and the inner layer shall not have cracks The outer layer shall not have cracks, the total thickness of the inner layer shall not exceed 70mm Thickness requirements Single corrugated box wall thickness shall meet the requirements in Table 7 . . Table 5 Corrugated box thickness Thickness type General parts Ink printing Ink printing A ≥ 4.05-0.38-0.20C ≥ 3.15-0.33-0.18B ≥ 2.25-0.28-0.15E ≥ 0.99
The thickness of the double corrugated box wall should be higher than the sum of the two corresponding rake-type thicknesses in the table.
Side pressure strength model: HD-513-2
The calculation should be calculated McKee formula (McKee Formula) compression strength corrugated side compression strength reference value standard value. In the formula:
Required side pressure intensity, kN/m;
Required empty box compressive strength, N;
2 times the length and width of the carton, m;
Cardboard thickness, m .
Bursting Strength The burst strength of single corrugated and double corrugated cartons should meet the requirements of Table 2 .
The puncture strength of the puncture strength three corrugated boxes should meet the requirements of Table 6 . Table 6 Puncture strength requirements Excellent products, first-class products, qualified products, puncture strength
In order to meet the needs of our customers, our company has strict requirements on the requirements for carton testing.