| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a copper alloy member which makes a scale containing calcium carbonate as a main component hardly deposit thereon, and makes the scale not to deposit on a part contacting with water, does not lower a heat exchange performance in a process of being used and does not cause a pitting corrosion that is rarely formed though depending on a quality of the water, even when used in a heat exchanger that indirectly or directly heats the water, and to provide the heat exchanger which incorporates the member. <P>SOLUTION: The copper alloy member has a composition including Zr in a parent phase as a solid solution, a simple substance and/or a compound in an amount of 0.005 to 0.2 mass% (in terms of Zr in the case of compound), and the balance Cu with unavoidable impurities. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
