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Method for rolling pure titanium rod and wire

A technology for rods and wires and pure titanium, which is applied in the processing field of pure titanium rods and wires, can solve the problems of high energy consumption, low rolling speed, uneven structure, etc., and achieve the effects of reducing energy consumption, improving production efficiency, and excellent structure and performance.

Inactive Publication Date: 2007-12-12
XIAMEN HONGLU TUNGSTEN MOLYBDENUM IND CO LTD
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  • Abstract
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  • 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] In the method of rolling pure titanium wire billet (as shown in Figure 2) in a transverse rolling mill, 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 wire billet is caused The temperature difference between the head and the tail of the billet is large, and the diameter deviation and uneven structure of the pure titanium wire billet are large

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Three-roll mill: As shown in Figure 3, the three-roll mill is composed of a Φ100mm bar billet heating furnace, a three-roll mill, front and rear raceways, and cooling beds. The Φ100mm bar billet heating furnace adopts electric heating, automatic control, digital display, record printing, and the temperature of the pure titanium bar billet in the heating furnace is controlled at 600-850℃. The pass pattern of the three-roll mill is an ellipse-square and ellipse-round pass system, the average elongation coefficient of the pass is 1.1-1.5, and the finishing temperature is controlled at 500-850℃. The raceway can meet the rolling requirements of Φ80-50mm bars and bar stocks with a unit weight of less than 100kg, and the cooling bed can meet the cooling requirements of pure titanium bars.

[0025] The three-roll mill can produce Φ80-50mm round bars, square bars and other special-shaped bars. The maximum unit weight of the bars is 100kg; it can also produce Φ50mm bar stocks with a ...

Embodiment 2

[0027] Two-roll continuous rolling unit: As shown in Figure 3, the two-roll continuous rolling unit is composed of a Φ50mm bar billet heating furnace and a continuous rolling unit, a special guide, a raceway, a cooling bed, a flying shear, and a coiler. The Φ50mm bar billet heating furnace adopts electric heating, automatic control, digital display, record printing, and the temperature accuracy of the pure titanium bar billet in the heating furnace is controlled at ±10℃. The pass pattern of the two-roll continuous rolling mill adopts the oval-square and ellipse-round pass system, the average elongation coefficient of the pass is 1.1-1.4, and the finishing temperature is controlled at 600-850℃. All rolling mills are driven by variable frequency motors, and there are detachable rolling special guides between the front and rear stands of the middle pass, so that the rolled pieces rolled from the previous stand can be easily thrown out and twisted by 90° for the latter one. Frame bite...

Embodiment 3

[0030] Twist-free continuous rolling mill: The twist-free continuous rolling mill is composed of a twist-free rolling mill, a coiling machine and a moving cooling bed. The pass type of the twist-free continuous rolling mill is an ellipse-round pass system, with an average pass elongation coefficient of 1.05-1.4, a pass section shrinkage rate of less than 20%, and a final rolling temperature controlled at 500-850°C to control the dimensional accuracy of the finished wire rod. Improve the surface quality of finished products. The winding machine can quickly reel the wire blank into a wire coil, and the moving cooling bed can cool the wire coil and send it out automatically. The twist-free tandem rolling mill 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-size ingots into Φ80-20mm rods through multiple fires, and then process them into Φ20-10mm rods through multiple fires of rotary forging equipment; The processing of titanium wire billet is generally to heat the Φ30mm bar billet by manual feeding in a 250 horizontal rolling mill, and discontinuously roll it into a Φ8mm wire billet. The process flow is shown in Figure 1. [0003] The method of forging and rotary forging to produce pure titanium bars requires many heating times and high energy consumption; the operator has high labor...

Claims

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Application Information

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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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