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Medium-high-carbon microalloy non-hardened and tempered steel and controlled forging and cooling process

A technology of non-quenched and tempered steel and process method, which is applied in the controlled forging-controlled cooling of medium and high carbon microalloyed non-quenched and tempered steel, in the field of medium and high carbon microalloyed non-quenched and tempered steel, which can solve the problems of uneven hardenability, etc. To achieve the effect of simplifying the production process, improving the utilization rate of materials, and reducing the influence of deformation

Active Publication Date: 2009-07-29
WUHU SANLIAN FORGING CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Therefore, the hardenability produces uneven changes

Method used

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  • Medium-high-carbon microalloy non-hardened and tempered steel and controlled forging and cooling process
  • Medium-high-carbon microalloy non-hardened and tempered steel and controlled forging and cooling process
  • Medium-high-carbon microalloy non-hardened and tempered steel and controlled forging and cooling process

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Embodiment Construction

[0048] Below with reference to the accompanying drawings, through the description of the implementation examples, the specific embodiments of the present invention, such as the material composition involved, the function and working principle, the manufacturing process and the method of operation and use, etc., are further described in detail to help those skilled in the art Personnel have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0049] 1. Material composition and corresponding performance indicators of medium and high carbon microalloy non-quenched and tempered steel:

[0050] The medium-high carbon microalloy non-quenched and tempered steel provided by the present invention has Fe as the main component, and the medium-high carbon microalloy non-quenched and tempered steel includes the following components according to the content in the total mass: C: 0.520% ~0.730%; Si: ≤0.850%; Mn: 0....

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Abstract

The invention discloses composition of medium-and high carbon micro-alloy non quenched and tempered steel. The medium-and high carbon micro-alloy non quenched and tempered steel comprises the following trace elements by the content in total mass: 0.060-0.220% of V, 0.010-0.030% of Ti and 0.020-0.030% of Nb. The invention also discloses a forging-cooling controlled technique method of the micro-alloy non quenched and tempered steel, for example, the method includes the following process: heating before forging, furnace exiting of the heating before forging, widening, preforging, final-forging, trimming cutting, hole extruding, furnace entering of cooling controlling after forging, cooling controlling, furnace exiting of cooling controlling after forging, and charging basket entering. The adoption of the technical proposal aims at producing products satisfying mechanical property by a temperature controlled cooling method without post heat treatment in the casting process.

Description

technical field [0001] The invention belongs to the technical field of thermal processing of metal materials, and relates to microalloy non-quenched and tempered steel controlled forging-controlled cooling technology, more specifically, the invention relates to a medium-high carbon microalloy non-quenched and tempered steel. In addition, the present invention also relates to the controlled forging-controlled cooling process of the medium-high carbon microalloy non-quenched and tempered steel. Background technique [0002] Microalloying technology is a new metallurgical discipline that emerged in the 1970s, and it is an important symbol of the transformation from traditional iron and steel production to modern metallurgical production. [0003] Micro-alloyed non-quenched and tempered steel for forging began in the mid-1970s, first in Germany, and then developed in Sweden. my country began research work in this area in the early 1980s. Add trace amounts of strong carbide-for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/14C22C38/16C22C38/28C22C38/50C22C33/00C21D9/34B21J1/06
Inventor 孟江峰
Owner WUHU SANLIAN FORGING CO LTD
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