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Induction hardening and tempering production line

A production line and induction coil technology, applied in the field of induction quenching and tempering production lines, can solve the problems of large deformation and low strength of steel bars

Pending Publication Date: 2018-09-18
江苏南钢通恒特材科技有限公司
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide an induction quenching and tempering production line to alleviate the technical problems of low steel bar strength and large deformation after quenching and cooling in the prior art

Method used

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  • Induction hardening and tempering production line

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Embodiment Construction

[0042] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenienc...

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Abstract

The invention belongs to the technical field of steel rod production and relates to an induction hardening and tempering production line. After a steel rod body enters a box, an all-around water sprayer achieves all-around quenching and cooling, so that the heated steel rod body can be quenched and cooled in an all-around manner, no quenching blind area exists, no soft spot exists, no soft zone exists, and deformation is tiny. A steel rod raw material is conveyed into a multi-grade quenching heating assembly to be heated, the heated steel rod is conveyed to a quenching cooling assembly to be quenched, the quenched steel rod is conveyed to the multi-grade tempering heating assembly, the tempered steel rod is conveyed to a cold bed through a discharging assembly, natural cooling is conducted, and packaging and storage are conducted. The steel rod is driven to continuously move frontwards through a conveying assembly, the steel rod is gradually heated in a graded manner, the induction heating and hardening and tempering quality is improved, and bending deformation is tiny; the steel rod is processed while slowly advancing, it is guaranteed that the steel rod is evenly heated and evenly cooled, the hardness, the metallographic structure and the mechanical property are uniform, and the scattering difference is small.

Description

technical field [0001] The invention relates to the technical field of steel bar production, in particular to an induction quenching and tempering production line. Background technique [0002] In the steel bar quenching and tempering process of materials at present, the general manufacturers adopt flame furnace, box furnace and pit furnace as quenching and tempering process. Due to the limitations of the heating methods of flame furnace, box furnace and pit furnace, they cannot fully meet the requirements 10.9 performance requirements for high-strength fasteners; resulting in early failure of parts during use and reducing the service life of high-strength fasteners. [0003] And in the current steel bar induction quenching and tempering production line, although some manufacturers have adopted the overall liquid quenching of the steel bar and 180° water spray quenching, which cannot solve the bending deformation of the steel bar during the quenching process, but there will ...

Claims

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Application Information

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IPC IPC(8): C21D1/25C21D1/42C21D1/667C21D9/00
CPCC21D1/25C21D1/42C21D1/667C21D9/0062C21D9/0075Y02P10/25
Inventor 鲍新城顾晓文高传德
Owner 江苏南钢通恒特材科技有限公司
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