Preparation method of high-strength and corrosion-resistant composite heat exchanger tube
A heat exchange tube and corrosion-resistant technology, which is applied in the field of preparation of high-strength corrosion-resistant composite heat exchange tubes, can solve the problems of large smoke such as extrusion and lubrication, high maintenance mold costs, complicated production processes, etc. Effects of oxidation cracking, short production cycle, improved heat resistance and creep resistance
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[0020] Example 1
[0021] A method for preparing a high-strength, corrosion-resistant composite heat exchange tube. The composite heat exchange tube is composed of copper base, alloy metal and filler particles; the weight percentage of alloy metal is as follows: magnesium 0.5-0.6%, silver 0.08-0.09%, tin 0.2 -0.4%, zirconium 0.012-0.014%, niobium 0.012-0.014%, nickel 0.05-0.06%, titanium 0.005-0.008%, mixed rare earth 0.02-0.04%, mixed rare earth is composed of yttrium, berkelium and lanthanum, the mass ratio of the three It is 1: (0.15-0.2): (0.4-0.5); the weight percentage of filler particles is as follows: tetrapod zinc oxide whiskers 0.010-0.012%; silicon carbide 0.008-0.009%, aramid fiber 0.005-0.006%, glass Fiber 0.004-0.005% and nano-titanium dioxide 0.002-0.003%; the balance is copper, preferably copper cathode with a copper content ≥99.95%; the preparation steps are as follows:
[0022] (1) Divide the copper material, each alloy metal and filler particles into multiple pa...
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[0025] Example 2
[0026] A method for preparing a high-strength, corrosion-resistant composite heat exchange tube. The composite heat exchange tube is composed of copper base, alloy metal and filler particles; the weight percentage of alloy metal is as follows: magnesium 0.5-0.6%, silver 0.08-0.09%, tin 0.2 -0.4%, zirconium 0.012-0.014%, niobium 0.012-0.014%, nickel 0.05-0.06%, titanium 0.005-0.008%, mixed rare earth 0.02-0.04%, mixed rare earth is composed of yttrium, berkelium and lanthanum, the mass ratio of the three It is 1: (0.15-0.2): (0.4-0.5); the weight percentage of filler particles is as follows: tetrapod zinc oxide whiskers 0.010-0.012%; silicon carbide 0.008-0.009%, aramid fiber 0.005-0.006%, glass Fiber 0.004-0.005% and nano-titanium dioxide 0.002-0.003%; the balance is copper, preferably copper cathode copper with a content of ≥99.95%; four needle-shaped zinc oxide whiskers are 12-14μm in length, root diameter is 3-5μm, and aramid fiber length It is 2-2.5mm, mon...
Example Embodiment
[0031] Example 3
[0032] A method for preparing a high-strength, corrosion-resistant composite heat exchange tube. The composite heat exchange tube is composed of copper base, alloy metal and filler particles; the weight percentage of alloy metal is as follows: magnesium 0.5-0.6%, silver 0.08-0.09%, tin 0.2 -0.4%, zirconium 0.012-0.014%, niobium 0.012-0.014%, nickel 0.05-0.06%, titanium 0.005-0.008%, mixed rare earth 0.02-0.04%, mixed rare earth is composed of yttrium, berkelium and lanthanum, the mass ratio of the three It is 1: (0.15-0.2): (0.4-0.5); the weight percentage of filler particles is as follows: tetrapod zinc oxide whiskers 0.010-0.012%; silicon carbide 0.008-0.009%, aramid fiber 0.005-0.006%, glass Fiber 0.004-0.005% and nano-titanium dioxide 0.002-0.003%; the balance is copper, preferably copper cathode copper with a content of ≥99.95%; four needle-shaped zinc oxide whiskers are 12-14μm in length, root diameter is 3-5μm, and aramid fiber length It is 2-2.5mm, mon...
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