Coil handling and finish protection
How a coil is built and moved safely, what each finish fears in storage, a step-by-step handling method with a worked coil, and how to read and deal with finish defects.
4 lessons · about 47 min · 9 diagrams · 4 videos
Version 1.1.0
Builds on these modules
Lessons
0 of 4 complete
Lesson 1 · 12 min · 12 slides · 10 questions
Coil handling and finish protection: principles and terminology
What a master coil, slit coil, eye, lap, band and PIW are, how thin a factory finish is, and the OSHA rules that apply to forklifts, slings, cranes and stacked coils.
You will be able to: Name the parts of a coil and its finish, use the words coil handling is described in, and state the safety boundaries for moving, storing and opening a coil.
Not startedStart →Lesson 2 · 12 min · 12 slides · 11 questions
Coil handling and finish protection: materials, standards and design constraints
What painted, galvanized and Galvalume stock each fear, why condensation and sealed wraps cause stain, the stock-age and film limits published by different makers, and how a colour is identified.
You will be able to: Identify what damages each finish AFS handles, set the storage conditions that prevent it, and apply the supplier's age and film limits for the material in hand.
Not startedStart →Lesson 3 · 12 min · 12 slides · 10 questions
Coil handling and finish protection: methods and worked application
A step-by-step method from receiving to shipping, the handling rules at each step, and a worked coil: weight per foot, length, PIW, outside diameter and pieces per coil.
You will be able to: Apply a documented receiving-to-shipping method to an incoming coil, estimate its length, outside diameter and piece yield with every input stated, and set its inspection points.
Not startedStart →Lesson 4 · 11 min · 12 slides · 9 questions
Coil handling and finish protection: defects, verification and case study
Seven finish defects and what to do about each, what touch-up paint can and cannot do, two fatal coil-handling cases, and the record that shows a coil was handled right.
You will be able to: Identify a finish or handling defect from its mark, choose a corrective option within the supplier's and MCA's limits, and document the evidence a reviewer needs.
Not startedStart →
Practical task
Build a documented coil handling and finish protection job packet for one incoming coil and one finish defect, so a reviewer can follow every decision without asking.
Hand in
- A receiving and identification record: bands, wrap, edges, water, gauge, material, colour name and chart, finish face, with a photo list
- A marked-up sketch of the coil (ID, OD, width, bands, finish face) and of where it will be stored, with chocks or rack, stack height and cover
- The worked estimate for your coil: weight per foot, length, PIW, outside diameter and pieces per coil, with every input labelled as measured, supplier data, AFS register or assumption
- A handling plan naming the equipment, its rated capacity (from AFS's equipment, not invented), who is trained to use it, and the supplier's age and film limits for the coil
- A finish-defect analysis for one mark: what it is, its likely cause, touch-up or remake with the reason, and the evidence recorded
Rubric
| Criterion | Meets the standard when |
|---|---|
| Identification | The coil is matched by gauge, material, colour name and chart, and the finish face is stated. |
| Calculations | Weight per foot, length, PIW, OD and pieces are correct, with units and every input's source; the result is called an estimate. |
| Storage | Indoors or covered with a breathing cover, off the ground, chocked or racked, stack height within the supplier's rule, first in, first out within the supplier's age limit. |
| Safety | Forklift, sling or crane rules from 29 CFR 1910.178, .179 and .184 are applied, nobody goes under a raised load, and bands are cut so they cannot snap back. |
| Finish protection | Contact points are padded, cutting is away from finished stock, and the film comes off when the supplier says. |
| Defect analysis | The touch-up or remake decision follows MCA and the supplier, and the record shows the product, batch and supplier consulted where touch-up is used. |