Round Wire Mandrel Winding Test Apparatus
1. Introduction
The round wire mandrel winding test apparatus is designed according to IEC60851-3 clause 6.2.1 and GB/T4074.3 clause 6.2.1. It’s used to evaluate the flexibility, heat shock resistance, thermal bonding strength, resistance to water-containing transformer oil, weight loss, and other properties of enameled round wires with a nominal conductor diameter of 1.60mm or less.
A straight piece of wire shall be wound for 10 continuous and adjacent turns around a polished mandrel of the diameter given in the relevant standard. The mandrel shall be rotated with a rate of 1r/s to 3r/s with a tension applied to the wire that is just sufficient to keep it in contact with the mandrel. Elongating or twisting the wire shall be avoided.
2. Specification
| Wind speed | 100±10r/min |
| Wind turns | 0-999r settable |
| Mandrel diameter | 1lot, 22pcs
0.15mm*1, 0.25mm*1, 0.28mm*1, 0.32mm*1, 0.35mm*1, 0.4mm*1, 0.65mm*1, 0.7mm*1, 0.8mm*1, 0.9mm*1, 1.0mm*1, 1.1mm*1, 1.25mm*1, 1.4mm*1, 1.6mm*1, 1.8mm*1, 2.0mm*1, 2.2mm*1, 3.55mm*1, 4.0mm*1, 4.5mm*1, 5.0mm*1 |
| Weight | Small weight hook 0.1N*1,
Small weight: 0.1N*2, 0.2N*1, 0.5N*1, Large weight hook: 1N*1 Large weight: 1N *2, 2N*1, 5N*3, |
| Power Supply | AC220V±10%, 50Hz |
| Power consumption | ≤100W |
| Operating environment | Temperature: 0-40℃, relative humidity: ≤85% |
| Dimension and weight | L600*W350*375mm/35KG |
