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Wide steel band for band saw and manufacturing method thereof

A manufacturing method and wide-width steel technology, applied in the field of wide-width steel strips for band saws and its manufacture, can solve the problems of poor thickness accuracy, insufficient spheroidization rate, and insufficient hardenability, etc., and achieve high straightness , high slitting precision and broad prospects

Inactive Publication Date: 2019-03-22
浙江龙盛薄板有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Ordinary D6A steel on the market cannot fully meet the manufacturing and use requirements of clutch diaphragm steel due to surface decarburization, insufficient spheroidization rate, insufficient hardenability, poor wear resistance and poor thickness accuracy.

Method used

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  • Wide steel band for band saw and manufacturing method thereof
  • Wide steel band for band saw and manufacturing method thereof
  • Wide steel band for band saw and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1 (D6A):

[0047] (1) Hot rolling:

[0048] The composition of hot-rolled raw materials is shown in the table below:

[0049]

[0050] The balance is Fe and trace unavoidable impurities;

[0051] The finishing temperature of hot rolling is 890±20℃, and the coiling temperature of finishing rolling is 600±20℃;

[0052] (2) pickling

[0053] The hot-rolled steel coils are pickled by a push-pull shallow-trough turbulent-flow pickling unit, using hydrochloric acid pickling, the concentration is controlled between 7% and 17% (w / w), and the surface oxide scale is removed.

[0054] (3) Pre-spheroidizing annealing

[0055] The annealing adopts a full-hydrogen bell-type furnace, and annealing is carried out according to the following setting process:

[0056] Annealing process control parameter name

Various parameter control values

steel type

D6A

Thickness (mm)

2.7

Width (mm)

330

Loading capacity (T)

80～9...

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PUM

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Abstract

The invention aims to disclose a wide steel band for a band saw (D6A). The wide steel band for the band saw (D6A) comprises the following chemical components of, by weight, 0.44-0.5% of C, 0.15-0.3% of Si, 0.6-0.8% of Mn, 0.86-1.06% of Cr, 0.43-0.63% of Ni, 0.83-1.03% of Mo, 0-0.015% of S, 0-0.025% of P, 0.05-0.18% of V, 0.15-0.18% of Nb, and the balance Fe and trace amount of inevitable impurities, wherein the P and the S can be O. According to the method, the steel band for the band saw subjected to multiple tests and trials, so that the quality requirements of the strength, the hardness, the size precision, the straightness and a spheroidized structure of the steel band for the saw band saw can be completely met.

Description

(1) Technical field [0001] The invention relates to a wide steel strip for a band saw and a manufacturing method thereof. (2) Background technology [0002] With the rapid development of various manufacturing industries such as furniture in recent years, the demand for band saws for cutting wood and various metal and non-metallic materials has grown rapidly. Many band saw factories follow the domestic development trend and quench and temper steel. The final comprehensive performance requirements are higher. [0003] The D6A material is medium carbon alloy steel with high strength and good toughness. It was mostly produced by narrow strip steel factories before. It is relatively easy to produce alloy steel from narrow strip steel, but it has low precision, poor plate shape, low annealing temperature limited by electric furnace, and poor structure. With the pressure of environmental protection in recent years, most of the narrow-strip steel mills are facing the situation of c...

Claims

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Application Information

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IPC IPC(8): C22C38/02C22C38/04C22C38/44C22C38/46C22C38/48C21D8/02
CPCC21D8/0205C21D8/0226C21D8/0236C21D8/0247C22C38/02C22C38/04C22C38/44C22C38/46C22C38/48
Inventor 祝海容黄爱军潘小成阮加才
Owner 浙江龙盛薄板有限公司
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