Symmetrical four-roller die drawing method for regular-hexagon-section titanium wires

Abstract

The invention discloses a symmetrical four-roller die drawing method for regular-hexagon-section titanium wires, which has the advantages of reducing the processing passes and the intermediate annealing passes, reducing the drawing force and the device driving power, reducing the material and energy source loss, enhancing the finished product rate and is very wide in application range. Based on the comprehensive advantages of the conventional rolling and fixed die drawing processing method, two rollers of a roller type die having a V-shaped cavity with an 120-degree inner angle and two rollers of a plane roller type die are used for forming a combination in which the four rollers are vertical in the front-rear direction and are crossed symmetrically in the horizontal direction, or two combinations each comprising the above four rollers and in which the rollers are crossed vertically in the front-rear direction and are crossed symmetrical in the horizontal direction are formed; the combinations are used for the roller die drawing in the processing of regular-hexagon-section titanium wires; the symmetrical four-roller die drawing method for regular-hexagon-section titanium wires is applicable to processing titanium and titanium alloy regular-hexagon-section wires which are high in surface quality, finished product rate, efficiency and single-deck weight.

Description

technical field [0001] The invention relates to a symmetrical four-roller die drawing method for a regular hexagonal cross-section titanium wire. Background technique [0002] Titanium and titanium alloys have high strength, high specific strength, excellent corrosion resistance and biocompatibility, and have been widely used in many fields of national economy and social life. In the production of round section or non-circular section (special-shaped) titanium and titanium alloy wire in China, rolling or fixed die drawing methods are widely used. Rolling has the advantages of simple processing technology, high production efficiency, various product specifications, single-disc The advantage of wire material weight is large, but the disadvantage is that the production equipment investment and floor area are large, the product size is difficult to control, and the product surface quality depends on the processing process control and the state of the blank in the early stage. Mo...

AI Technical Summary

Problems solved by technology

In the production of round section or non-circular section (special-shaped) titanium and titanium alloy wire in China, rolling or fixed die drawing methods are widely used. Rolling has the advantages of simple processing technology, high production efficiency, various product specifications, single-disc The advantage of wire material weight is large, but the disadvantages are large investment in production equipment and large floor space, difficulty in controlling product size, product surface quality depends on processing control and pre-billet state, and titanium and titanium alloy wire materials have a relatively low feed unit weight. In view of the characteristics of few, expensive, complex processing technology and process control, this processing method can only be used as the production of wire blanks in the early stage

Fixed die drawing has the advantages of low investment and site conditions, easy control of product size, and high product surface quality, but it has small pass processing, easy to stick to the mold, low production efficiency, narrow product specification range, and large material loss. The mold and lubrication method have high requirements, so it can only be produced as a special wire material with small batch, high price and high surface precision requirements.