| 摘要 |
PURPOSE:To obtain a wire that does not leave lubricant efficiently by drawing the wire using a specified cassette roller die formed to a block by combining plural roller dies alternately, and thereby eliminating necessity of lubricant. CONSTITUTION:Unit cassette is formed by setting a bearing frame 7 on which a pair of grooved rollers 6 are mounted to a pair of assembling frame 8. A roller die block 3 is assembled by piling plural unit cassettes so that direction of drawing down is changed alternately by 90 deg.. Plural blocks 3 is disposed in series and a wire 2 in which flux is sealed is passed through continuously without adding lubricant. Thus, a welding wire that does not leave lubricant can be obtained. |
