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Method for rolling pure titanium rod and wire

A bar and wire rod and pure titanium technology, which is applied to the processing field of pure titanium rod and wire rod, can solve the problems of uneven structure, low rolling speed and high energy consumption, and achieve the effects of excellent structure performance, improved production efficiency and reduced energy consumption.

Inactive Publication Date: 2009-01-28
XIAMEN HONGLU TUNGSTEN MOLYBDENUM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The method of forging and rotary forging to produce pure titanium rods requires many heating times and high energy consumption; the labor intensity of operators is high and the production efficiency is low; the length is short and the diameter deviation is large
[0004] Rolling of pure titanium wire billet (such as figure 2 As shown), the length of the wire billet is limited, the maximum unit weight is only about 5kg, the rolling speed is low, and the rolling time is long, not only the production efficiency is low, but also the temperature difference between the head and tail of the wire billet is large, and the Large diameter deviation and uneven structure

Method used

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  • Method for rolling pure titanium rod and wire
  • Method for rolling pure titanium rod and wire
  • Method for rolling pure titanium rod and wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Three-roll rolling mill: such as image 3 As shown, the three-roll rolling mill is composed of a Φ100mm billet heating furnace, a three-roll rolling mill, front and rear raceways, and a cooling bed. The Φ100mm billet heating furnace adopts electric heating, automatic control, digital display, record printing, and the temperature of the pure titanium billet in the heating furnace is controlled at 600-850°C. The pass type of the three-roll rolling mill is ellipse-square, ellipse-round pass system, the average elongation coefficient of the pass is 1.1-1.5, and the final rolling temperature is controlled at 500-850°C. The raceway can meet the rolling requirements of Φ80-50mm rods and billets with a single weight less than 100kg, and the cooling bed can meet the cooling requirements of pure titanium rods.

[0025] The three-roll rolling mill can produce Φ80-50mm round bars, square bars and other special-shaped bars. The maximum unit weight of bars is 100kg; it can also prod...

Embodiment 2

[0027] Two-roll continuous rolling mill: see image 3 As shown, the two-roll continuous rolling unit is composed of a Φ50mm billet heating furnace, a continuous rolling unit, a special guide, a raceway, a cooling bed, flying shears, and a take-up coiler. The Φ50mm billet heating furnace adopts electric heating, automatic control, digital display, record printing, and the temperature accuracy of the pure titanium billet in the heating furnace is controlled at ±10°C. The pass pattern of the two-roll tandem rolling mill adopts the ellipse-square, ellipse-round pass system, the average elongation coefficient of the pass is 1.1-1.4, and the final rolling temperature is controlled at 600-850°C. All rolling mills are driven by frequency conversion motors, and there are detachable rolling special guides between the front and rear stands in the middle pass, so that the rolled pieces rolled by the previous stand can be easily thrown out and twisted 90° for the next machine. The frame b...

Embodiment 3

[0030] Twist-free tandem mill: The tandem-twist mill is composed of a twist-free rolling mill, a winding coiler and a moving cooling bed. The pass of the twist-free tandem rolling mill is an ellipse-circle pass system, the average elongation coefficient of each pass is 1.05-1.4, the reduction of area of ​​each pass is less than 20%, the final rolling temperature is controlled at 500-850°C, and the dimensional accuracy of the finished wire rod is controlled. Improve finished surface quality. The coiling machine can quickly coil the wire blank into a coil, and the moving cooling bed can cool the coil and send it out automatically. The twist-free tandem rolling unit can produce Φ8-6mm wire billets with a unit weight of 100kg.

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Abstract

The invention relates to pure titanium products rolling method. It rolls the Phi100mm pure titanium bar blank heated to 600- 850deg.C for 6-8 times, using two rolling machine connected set vertically rolling to Phi20-10mm bars or wire blanks for 8-12 times, using torque free linking roll set rolling the wire blank to Phi8-6mm for 2-6 times by rolling the Phi10mm wires. It only needs to heat once if it is using blank smaller than the size of Phi100mm. It is highly efficient, energy saving, high in precision, and fine in structure compared with existing ones.

Description

technical field [0001] The invention relates to a processing method of pure titanium rod and wire Background technique [0002] Titanium and titanium alloys have the characteristics of high specific strength, acid and alkali resistance, and strong affinity with the human body, and are widely used in aviation, medicine, petrochemical and other industries. At present, the processing of pure titanium rods generally adopts the forging method to forge large-scale ingots into bars of Φ80-20mm through multiple fires, and then process them into bars of Φ20-10mm through multiple fires of swivel forging equipment; The processing of titanium wire billet is generally to heat the Φ30mm billet and use artificial feeding method in the 250 horizontal rolling mill to discontinuously roll it into a wire billet of Φ8mm. For its process, see figure 1 . [0003] The method of forging and rotary forging to produce pure titanium rods requires many heating times and high energy consumption; the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/16B21B37/16B21B37/74B21B37/56B21B37/00
Inventor 庄志刚朱恩科谭华王清火赵振刚陈学军蔡协勇
Owner XIAMEN HONGLU TUNGSTEN MOLYBDENUM IND CO LTD
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