| 摘要 |
<PICT:0990977/C6-C7/1> Silicon-bronze spacers 4, assembled with ferrite magnetic head members 1 (see Division G5) are of such related mechanical properties to those of the ferrite that an effective common machining of the top surface is realizable. Appropriate alloys are:- ..I.II.III .Cu.66.58.66 .Sn.30.38.30 .Si.2.2.2 .As.2.2.- .P.-.-.2 all in percentage by weight. Examples of inappropriate alloys are also given. |
