Roughness 0.4~1.0 Working Temperature ºC 40~140 Friction Coefficient 0.09~0.15 coefficient of heat conduction W/m·K 52 Linear expansion coefficien 18.5×10-6/K Yield Strength N/mm2 >100 Copper sleeves, also known as copper shaft sleev...
Surface Roughness(μ m) Shiny Surface Ra ≤ 0.43 ≤ 0.43 ≤ 0.43 ≤ 0.43 ≤ 0.43 ≤ 0.43 Matte Surface Rz 5 6 10 10 12 12 Peel Strength(Kg/cm) ≥ 1.1 ≥ 1.2 ≥ 1.8 ≥ 1.8 ≥ 2.1 ≥ 2.1 Leakage Poins(points/) ≤ 5 No High Temperature Anti-Oxidization Performance ...
Surface Roughness(μ m) Shiny Surface Ra ≤ 0.43 ≤ 0.43 ≤ 0.43 ≤ 0.43 ≤ 0.43 ≤ 0.43 Matte Surface Rz 5 6 10 10 12 12 Peel Strength(Kg/cm) ≥ 1.1 ≥ 1.2 ≥ 1.8 ≥ 1.8 ≥ 2.1 ≥ 2.1 Leakage Poins(points/) ≤ 5 No High Temperature Anti-Oxidization Performanc...
correlation, in which the surface roughness effect is taken into account. It is also confirmed that the values of heat transfer coefficient for both smooth and micro-fin tubes are almost analogous, while the values of pressure drop for micro-fin tube are slightly higher than those of smooth ...
Surface Roughness(μ m) Shiny Surface Ra ≤ 0.43 ≤ 0.43 ≤ 0.43 ≤ 0.43 ≤ 0.43 ≤ 0.43 Matte Surface Rz 5 6 10 10 12 12 Peel Strength(Kg/cm) ≥ 1.1 ≥ 1.2 ≥ 1.8 ≥ 1.8 ≥ 2.1 ≥ 2.1 Leakage Poins(points/) ≤ 5 No High Temperature An...
3) artillery pipe 火炮身管 1. To test the inner surface of the artillery pipe, a new algorithm of image registration algorithm based on phase-correlation is proposed. 针对火炮身管内膛表面质量检测,提出一种基于相位相关的图像配准算法,对检测过程中采集到的火炮身管内膛图像进行无缝拼接,以全面、...
The copper-based alloy pipe containing silicon and aluminum comprises the following ingredients by mass percent: 72 to 76% of copper, 0.05 to 0.5% of silicon, 1 to 1.8% of aluminum, and a remainder zinc. 一种含硅和铝的铜基合金管及其制备的方法,该含硅和铝的铜基合金管的各成分质量百分比...
carried out, the appearance of small and large defects is reduced by using a 1 mm thick external ring of filler material and a brazing temperature of 820 °C. Keywords: brazing;copper pipe;heat pumps
In order to ensure the original structure of the material, all samples were directly cut from the alloy pipe. The as-revived microstructure of the alloy was a single-phase, and a large number of low coincidence site lattice (CSL) grain boundaries could be obtained after thermomechanical ...
The copper-based alloy pipe containing silicon and aluminum comprises the following ingredients by mass percent: 72 to 76% of copper, 0.05 to 0.5% of silicon, 1 to 1.8% of aluminum, and a remainder zinc. 一种含硅和铝的铜基合金管及其制备的方法,该含硅和铝的铜基合金管的各成分质量百分比...