Sectional type high-speed steel flat wire hot rolling production line and wire feeding speed control method thereof

Abstract

The invention discloses a sectional type high-speed steel flat wire hot rolling production line, and belongs to the field of high-speed steel wire drawing production equipment. The sectional type high-speed steel flat wire hot rolling production line comprises an unwinding device for unwinding materials, a pre-straightening device for pre-straightening the materials and a detection system, and thematerials pass a third rough rolling device, a finish rolling device and a fine rolling device after pre-straightening. The detection system is used for detecting the third rough rolling device, thefinish rolling device and the fine rolling device, and temperature sensors used for detecting the temperature values of high-speed steel flat wires and laser sensors used for detecting the width values and the thicknesses of the high-speed steel flat wires are arranged at inlets and outlets respectively. The invention discloses a wire feeding control method of the high-speed steel flat wires basedon the sectional type high-speed steel flat wire hot rolling production line. The method comprises the three steps of initial parameter setting, hot rolling state monitoring and wire feeding speed calculation, and has the advantage that continuous, stable and economical hot rolling of the high-speed steel flat wires can be achieved.

Description

【Technical field】 [0001] The invention relates to a high-speed steel flat wire hot-rolling production line, in particular to a segmented high-speed steel flat wire hot-rolling production line and a wire speed control method thereof. 【Background technique】 [0002] The width of high-speed steel flat wire (also known as high-speed steel flat wire strip, high-speed steel flat steel strip, etc.) is usually between 5 and 25 mm, and the thickness is usually between 1 and 5 mm. High-speed steel flat wire can be further cut into granules with a length between 10 and 50 mm, which can be used as raw materials for key components in various industries and fields, such as hydraulic pumps, hydraulic pumps, power boosters The turning blades in the pump body such as pumps are used as knives and cutting tool materials in the woodworking industry and sewing industry, and are used as air guide blades for centralized air conditioners, fresh air systems, and fan coils, etc. [0003] The traditi...

AI Technical Summary

Problems solved by technology

[0005] However, due to the particularity of high-speed steel materials, especially the lack of tensile properties of high-speed steel materials, the above-mentioned direct rolling method is only mastered by a few foreign companies. Although many domestic companies have copied the machinery and equipment of foreign production lines, they still cannot Master its production process, especially the control method of wire speed during hot rolling: when the wire speed is too slow, although the quality of the flat wire can be improved, the cost of the product is far higher than that of similar foreign products; the wire speed is too fast Sometimes there is a phenomenon of "pull and break"

Images