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Machining method of trapezoid-section special-shaped steel wire

A technology of trapezoidal section and processing method, applied in metal rolling and other directions, can solve the problems of increasing the processing technology of large-sized trapezoidal section special-shaped steel wire, increasing processing cost, and increasing processing difficulty, and achieves excellent comprehensive performance indicators and stable product performance. , the effect of precise wire size control

Inactive Publication Date: 2020-02-18
江阴法尔胜异型金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods will increase the processing cost, increase the difficulty of subsequent processing, and even lead to cracking during processing
At present, there is no mature processing technology for increasing the hardness of large-scale trapezoidal cross-section special-shaped steel wire

Method used

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  • Machining method of trapezoid-section special-shaped steel wire
  • Machining method of trapezoid-section special-shaped steel wire
  • Machining method of trapezoid-section special-shaped steel wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: Adopting the wire rod adopting grade is 57B, and diameter is φ 12mm. The bus bar is processed into a φ11mm round steel wire (the diameter is 0.25 to 0.3 times the circumference of the final trapezoidal cross-section special-shaped steel wire); and then the φ11mm bus bar steel wire is continuously rolled by a rolling mill for 6 passes to a thickness of 4.6mm (thickness is the final trapezoidal cross-section 1.05-1.5 times the size of the bottom edge of the cross-section special-shaped steel wire); then the preliminary formed steel wire is processed into the size of the required trapezoidal cross-section special-shaped steel wire through a wire drawing die, such as figure 1 Among them, the length of the upper bottom edge L1 is 4mm, the length of the lower bottom edge L2 is 4.3mm, and the height H is 16mm); finally, the obtained semi-finished product is subjected to oil quenching treatment, the quenching temperature is controlled at 800±5°C, and tempered The ...

Embodiment 2

[0030] Embodiment 2: adopting the wire rod adopting grade is 57B, and diameter is φ 12mm. The bus bar is processed into a φ11mm round steel wire (the diameter is 0.25 to 0.3 times the circumference of the final trapezoidal cross-section special-shaped steel wire); and then the φ11mm bus bar steel wire is continuously rolled by a rolling mill for 6 passes to a thickness of 4.6mm (thickness is the final trapezoidal cross-section 1.05-1.5 times the size of the bottom edge of the cross-section special-shaped steel wire); then the preliminary formed steel wire is processed into the size of the required trapezoidal cross-section special-shaped steel wire through a wire drawing die, such as figure 1 Among them, the length of the upper bottom edge L1 is 4mm, the length of the lower bottom edge L2 is 4.3mm, and the height H is 16mm); finally, the semi-finished product obtained is subjected to oil quenching treatment, the quenching temperature is controlled at 850±5°C, and tempered The ...

Embodiment 3

[0031] Embodiment 3: adopting the wire rod adopting grade is 57B, and diameter is φ 12mm. The bus bar is processed into a φ11mm round steel wire (the diameter is 0.25 to 0.3 times the circumference of the final trapezoidal cross-section special-shaped steel wire); and then the φ11mm bus bar steel wire is continuously rolled by a rolling mill for 6 passes to a thickness of 4.6mm (thickness is the final trapezoidal cross-section 1.05-1.5 times the size of the bottom edge of the cross-section special-shaped steel wire); then the preliminary formed steel wire is processed into the size of the required trapezoidal cross-section special-shaped steel wire through a wire drawing die, such as figure 1 Among them, the length of the upper bottom edge L1 is 4mm, the length of the lower bottom edge L2 is 4.3mm, and the height H is 16mm); finally, the semi-finished product obtained is subjected to oil quenching treatment, the quenching temperature is controlled at 900±5°C, and tempered The ...

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Abstract

The invention provides a machining method of a trapezoid-section special-shaped steel wire. Preliminary drawing is performed on a steel wire rod through a die to form a machining bus, wherein the diameter of the machining bus is 0.25-0.30 time of the perimeter of the trapezoid-section special-shaped steel wire; and continuous multi-pass rolling is performed on the prepared machining bus through arolling mill to prepare a flat steel wire, wherein the thickness of the flat steel wire is 1.05-1.15 times of the size of the upper bottom side of the final trapezoid-section special-shaped steel wire. The flat steel wire with a similar trapezoid section is produced in the flat roller cold rolling stage, the machining efficiency is high, and product performance is stable. Then, through die drawing, the semi-finished large-specification trapezoid-section special-shaped steel wire with excellent comprehensive performance indexes and meeting the use requirements of auger blades is produced through size settling. Since the steel wire obtained through drawing forming is quite small in deformation, high-speed production can be carried out, die consumption is low, and the steel wire is accurate in size control, smooth and natural in appearance and free of flash. The machining method is low in production cost, high in production efficiency and stable in finished product performance.

Description

technical field [0001] The invention relates to a processing method for a special-shaped steel wire with a trapezoidal cross-section, belonging to the field of special-shaped steel wire production. Background technique [0002] The auger blade is a routinely used accessory in the conveying equipment. Due to the friction generated during the rotating conveying process, it is easy to wear and tear, which affects the normal use of the equipment. The special-shaped steel wire with trapezoidal cross-section is the basic component for manufacturing the auger blade, so increasing its hardness can effectively improve the reliability and life of the auger blade. [0003] The hardness of the large-sized trapezoidal cross-section special-shaped steel wire produced and processed by the existing technology is relatively low (lower hardness of large-sized steel wire generally means that the processing busbar is greater than or equal to 9mm, and the surface hardness of the finished special...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/04B21B1/16B21C1/02B21C9/00
CPCB21B1/166B21C1/02B21C9/00B21C37/045
Inventor 周海军张春雷陈逸伟李凯军吴小明
Owner 江阴法尔胜异型金属材料有限公司
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