The surface residual stress of tube and bar after drawing straightening and annealing, under different processing conditions, were measured by means of resistance strain gauge.
The key technology of radiator manufacture by Cup ro Braze is not necessary to use flux, kupper solder and annealingresistance mate rial.
铜硬钎焊散热器制造工艺技术的核心是无焊剂、无铅钎焊合金以及抗退火材料。
3
The effects of baking temperature, baking time and prestrain on the bake hardenability and dent resistance of isotropic sheet steel and BH sheet steel produced by batch annealing were studied.