| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce a weight of a valve body of an expansion valve formed by an extrusion molding of a metal material such as an aluminum alloy or the like. <P>SOLUTION: The valve body 100 is made of a material obtained by an extrusion molding of the metal material such as the aluminum alloy or the like. Two pairs of gripping surfaces 101a and 101b, and 102a and 102b are formed on both sides 100a and 100b in the extruding direction of the valve body 100, and the other portions are to be concave as much as possible, so that the weight can be reduced. The gripping surfaces 101a and 101b and the gripping surfaces 102a and 102b are parallel surfaces, and come to be gripping surfaces for chuck claws C<SB POS="POST">1</SB>and C<SB POS="POST">2</SB>in machining. <P>COPYRIGHT: (C)2012,JPO&INPIT |
