| 摘要 |
<p>A production method for ferrules, which uses one or a plurality of metal or plastic line(s) (9) as a master block and removes the line(s) (9) after electrocasting, characterized in that the line(s) (9) is electrocast by being rotated with its linear lengthwise direction kept. The above method can remove the non-uniform thickness and bending of an electrocast product to thereby almost eliminate the deflection of the hole center of the electrocast product, provide the roundness in section of a bar-like semifinished product after electrocasting and reduce variations in thickness; and an agitating method of allowing an electrocast solution to flow while being rotated can facilitate solution agitation and prevent the deterioration of electrocasting work environment.</p> |
