XC45 steel high-frequency layer-by-layer heating induction quenching method
An induction hardening and high-frequency induction technology, applied in the field of high-frequency layer-by-layer heating induction hardening of XC45 steel, can solve the problems of long production cycle, unfavorable production efficiency and high production cost, and achieve high production efficiency, shorten production cycle and low cost. Effect
Active Publication Date: 2015-03-25
JIANGSU SUNWAY PRECISION FORGING
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Problems solved by technology
In this way, not only the production cost is high, but also the production cycle is long, which is not conducive to the improvement of production efficiency.
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[0014] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0015] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.
[0016] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.
[0017] Below through specific examples, the content of the present i...
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Abstract
The invention discloses an XC 45 steel high-frequency layer-by-layer heating induction quenching method. By adjusting high-frequency induction quenching parameters, low quenching hardness is obtained when the hardening layer depth is guaranteed. The method specifically includes heating for the first time, placing a workpiece on a high-frequency quenching machine, heating the workpiece to 860-890 DEG C within 1.9-2.1s, and complete austenitizing; cooling for the first time, keeping the workpiece heated for the first time still, standing, cooling the workpiece naturally until the color of the workpiece is dark red; heating for the second time, setting certain current and heating; cooling and quenching, directly spraying and quenching the workpiece heated for the second time, adjusting water aqua quenching bath flow to be 15-20 ml / s, adjusting quenching bath concentration to be 9-10%, and adjusting the quenching bath temperature to be 27-30 DEG C. The method is simple in process and low in device requirements, shortens production cycles, reduces production cost and improves production efficiency.
Description
technical field [0001] The invention relates to high-frequency induction hardening of auto parts, in particular to a method for high-frequency induction hardening of XC45 steel by layer-by-layer heating. Background technique [0002] XC45 steel is a steel commonly used in auto parts. It is a high-quality carbon structural steel with low hardness and easy cutting. In order to meet the performance of the product, the surface of the part generally needs to be induction hardened. [0003] According to the technical requirements of the product drawings, the different parts of the workpiece are generally quenched by intermediate frequency or high frequency, and then tempered to obtain the required hardness. However, some workpieces have higher technical requirements, and the hardness requirements for different parts are quite different. In the case that quenching separately and tempering together cannot meet the requirements, it is necessary to induction harden the area with lowe...
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IPC IPC(8): C21D1/10
CPCY02P10/25
Inventor 朱卫朱峰叶德林龚爱军倪亚玲
Owner JIANGSU SUNWAY PRECISION FORGING