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Steel for saw blade and its production method

A production method and saw blade technology, applied in the field of metal materials, can solve problems such as difficult production, and achieve the effects of simple production method, reasonable component control and excellent performance

Active Publication Date: 2017-05-17
INNER MONGOLIA BAOTOU STEEL UNION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to produce steel for saw blades that meets the narrow composition control requirements of subsequent steel rolling heat treatment, it is difficult to produce

Method used

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  • Steel for saw blade and its production method
  • Steel for saw blade and its production method

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Embodiment Construction

[0020] The concrete flow process of the production method of saw blade steel of the present invention is as follows:

[0021] Step S1: converter smelting;

[0022] In order to ensure the quality of steel for finished saw blades and the precise control of the components of the finished product, the following process parameters need to be strictly controlled: the mass percentage of P in the initial molten iron smelted by the converter ≤ 0.013%, and the mass percentage of S ≤ 0.050%. During the smelting process of converter smelting, 3700-5400kg of lime, 500-3000kg of dolomite, 0-150kg of fluorite and 500-2000kg of iron sheet are added to every 100 tons of molten iron. As shown in Table 1, it is the quality of the ingredients added in the converter smelting process of the embodiment of the present invention. The tapping temperature of molten steel at the end of converter smelting is 1605-1660°C, the average value is 1635°C, the mass percentage of C is 0.03%-0.13%, the average ma...

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Abstract

The invention discloses steel for saw blades. The steel comprises the following chemical components in percentage by mass: 0.69-0.75% of C, 0.30-0.60% of Si, 1.10-1.40% of Mn, less than or equal to 0.15% of Cr, less than or equal to 0.10% of Ni, less than or equal to 0.15% of Cu, less than or equal to 0.08% of Mo, less than or equal to 0.04% of Sn, less than or equal to 0.02% of Sb, less than or equal to 0.025% of Ti, less than or equal to 0.040% of P, less than or equal to 0.040% of S, and the balance of Fe. The invention also discloses a production method of the steel for the saw blades. The steel for saw blades is reasonable in composition control to ensure the compression ratio of steel products, is good in performance, and does not have crackles on the surface. The production method of the steel for saw blades is simple, and a specific smelting process and narrow composition control of carbon are adopted to produce the steel for saw blades, which meets a requirement on narrow composition control during subsequent steel rolling heat treatment.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to a steel for saw blades and a production method thereof. Background technique [0002] Steel for saw blades requires steel to have high hardness and strength, and has the advantages of high strength, good toughness and plasticity, and low cost. Saw blade steel is generally used to make the matrix of various saw blades. In order to obtain excellent mechanical properties, its heat treatment system is relatively strict. In order to produce steel for saw blades that meets the requirements of narrow composition control for subsequent steel rolling heat treatment, it is difficult to produce. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a steel for saw blades, which meets the requirement of narrow composition control for subsequent steel rolling heat treatment. [0004] Technical scheme of the present invention is as follo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/60C22C38/50C22C38/28C22C38/16C22C33/04
Inventor 郑瑞智建国李平高明星赵桂英苏航王嘉伟郭志
Owner INNER MONGOLIA BAOTOU STEEL UNION
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