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发明公开
CN108103364A 一种耐腐蚀换热器及其加强工艺 无效 - 撤回

一种耐腐蚀换热器及其加强工艺
摘要：
本发明公开了一种耐腐蚀换热器主要包括壳体、设置在壳体内的换热管，壳体按质量百分比包括以下组分：C：0.1‑0.3%，Mn:0.5‑0.8%，Ni:0.5‑0.7%，Cr:2‑4%，Nb:0.4‑0.6%，Si:0.1‑0.3%，Fe：0.2‑0.5%，Mg：1.5‑2.0%，Cu≤0.2%，s≤0.015%，p≤0.025%，Mo:0.3‑0.5%，Ti：0.3‑0.5%，B：0.02‑0.03%，v:0.0018‑0.0022%，复合稀土：0.1‑0.3%，稀土元素：0.2‑0.4%，余量为Al；耐腐蚀换热器及其加强工艺，该加强工艺简单易行，加强后的换热器具有良好的耐腐蚀性。
摘要（英）：

The invention discloses a corrosion resistant heat exchanger comprising a shell and a heat exchange pipe arranged in the shell. The shell comprises, by mass, 0.1%-0.3% of C, 0.5%-0.8% of Mn, 0.5%-0.7%of Ni, 2%-4% of Cr, 0.4%-0.6% of Nb, 0.1%-0.3% of Si, 0.2%-0.5% of Fe, 1.5%-2.0% of Mg, no more than 0.2% of Cu, no more than 0.015% of s, no more than 0.025% of p, 0.3%-0.5% of Mo, 0.3%-0.5% of Ti,0.02%-0.03% of B, 0.0018%-0.0022% of v, 0.1%-0.3% of composite rare earth, 0.2%-0.4% of rare earth elements and the balance Al. The invention provides the corrosion resistant heat exchanger and a strengthening technology thereof; and the strengthening technology is simple and practicable, and the strengthened heat exchanger is high in corrosion resistance.

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