Spring steel wire water quenching device and process

By working together with multi-stage cooling tanks and flow guiding components, the problem of uneven cooling in water quenching was solved, achieving uniform cooling and efficient quenching of spring steel wire, reducing the risk of breakage, and improving process stability.

CN122235447APending Publication Date: 2026-06-19HENAN JIGANG METAL PROD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN JIGANG METAL PROD TECH CO LTD
Filing Date
2026-03-23
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing water quenching processes have difficulty controlling hardenability, resulting in a difference in cooling rate between the surface and interior of the spring steel wire. This creates a temperature difference vapor film, leading to uneven hardness distribution, increased thermal stress and deformation risk, and a tendency to break.

Method used

By employing multi-stage cooling tanks and flow guiding components, and through the coordinated operation of tapering rings, guide plates, elastic tubes, and transmission components, turbulence is generated and the flow rate is adjusted to achieve gradient cooling, disrupt the vapor film, and ensure cooling uniformity.

Benefits of technology

It significantly improves the uniformity and overall performance of water quenching of spring steel wire, reduces the risk of quenching cracks, ensures comprehensive and thorough quenching effect, and improves process stability.

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Abstract

This invention discloses a water quenching device and process for spring steel wire, relating to the field of quenching technology. It includes a cooling water tank comprising multiple cooling tanks of increasing depth along the wire conveying direction, with a flow pipeline between adjacent cooling tanks; a flow guiding assembly comprising a tapered ring fixedly connected to the flow pipeline, with a guide post rotatably connected to the end of the tapered ring away from the wire conveying direction, and a guide plate rotatably connected to the guide post; a flow rate regulating assembly comprising a regulating pipe fixedly connected to the flow pipeline and close to the guide plate, with an elastic tube coaxial with the regulating pipe inside, and an regulating plate between the elastic tube and the regulating pipe; and a transmission assembly comprising multiple air cylinders fixedly connected to the tapered ring and having push plates, with guide tubes connected to the air cylinders, and the guide tubes slidably connected to the regulating plate via transmission rods. This invention can improve the uniformity and quality of water quenching of spring steel wire.
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