Mch Circular Diameter Heating Element

4、 Main performance of the product 4.1 electrical performance: 4.1.1 insulation resistance: R ≥ 5 × 108Ω(500VDC) 4.1.2 withstand voltage strength: 1500vac for 1 minute; 1800vac for 1 minute; 3750VAC for 1 minute; 4000vac 0.1 min; 4.1.3 maximum applied voltage: 24VAC / 12VAC 4.2 physical properties: 4.2.1 bulk density ≥ 3.6g/cm3 4.2.2 bending strength ≥ 270MPa 4.2.3 compressive strength ≥ 2700mpa 4.2.4 lead tension: not less than 5kgf along the horizontal direction of the lead, and not less than 3.5kgf in the direction of 90 ℃ between the lead and the substrate. 4.3 temperature performance 4.3.1 rated working temperature: 100 ℃ ~ 230 ℃ 4.3.2 maximum temperature: 500 ℃ ~ 700 ℃ 4.3.3 heating rate: it can reach the rated working temperature in 30 seconds and the maximum temperature in 90 seconds. 5、 Appearance 5.1 defects: no mechanical damage, burr, crack, rust and pollution, and the identification is correct and clear. 5.2 warpage: no more than 0.008mm/mm.