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Hot-rolled and hot-forged steel ball waste heat quenching device and process

A technology for waste heat quenching and steel balls, which is used in hot forging steel ball waste heat quenching devices, quenching processes, and hot rolling fields. Flow, advanced and reasonable design, reducing the effect of conveying resistance

Inactive Publication Date: 2019-05-21
沈阳国谷新材料有限公司
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Problems solved by technology

For example, the representative heat treatment process in China is to use a box furnace or a tunnel / rotary furnace to heat and then immerse and quench. Due to the uneven heating of the steel balls in the furnace, the fluidity of the medium during quenching is not good, and the temperature of the medium cannot be accurately controlled, resulting in Uneven hardness of steel balls, poor mechanical properties, loss of roundness or cracking when grinding mineral materials

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  • Hot-rolled and hot-forged steel ball waste heat quenching device and process
  • Hot-rolled and hot-forged steel ball waste heat quenching device and process
  • Hot-rolled and hot-forged steel ball waste heat quenching device and process

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] Typical production process of hot-rolled and hot-forged steel balls: medium-frequency heating of round steel material → rolling by skew rolling mill / hammer die forging → residual heat quenching treatment → low-temperature tempering treatment → product quality inspection → product packaging and storage.

[0033] Such as Figure 1~5 As shown, the present invention provides a hot-rolled and hot-forged steel ball waste heat quenching device for the waste heat quenching treatment process. The device includes a quenching water tank 1 and a spiral push-up mechanism arranged obliquely in the quenchi...

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Abstract

The invention provides a hot-rolled and hot-forged steel ball waste heat quenching device and process. The quenching device comprises a quenching water tank, and a screw push-rising mechanism obliquely arranged in the quenching water tank. A quenching medium is put in the quenching water tank, and the quenching water tank is divided into a quenching region and a slow cooling region through a supporting plate arranged below the screw push-rising mechanism. The screw push-rising mechanism pushes a steel ball to move through the quenching region and the slow cooling region from bottom to top. Thequenching process is based on the device, the quenched steel ball is uniform in hardness and free of cracking, and the mechanical performance is improved.

Description

technical field [0001] The invention belongs to the technical field of heat treatment of ball hot-rolled and hot-forged forgings, and specifically relates to a hot-rolled and hot-forged steel ball residual heat quenching device and a quenching process. technical background [0002] The metallurgical industry is in the upstream of the entire industrial chain in my country's industrial chain. It undertakes the important task of providing raw materials and energy for the manufacturing industry. It plays a very important role in promoting the development of the national economy, strengthening national defense construction, and realizing "Made in China-2025". . Hot-rolled, hot-forged and cast steel balls are the main media and wearing parts for metallurgical industrial enterprises to grind various mineral materials, with an annual demand of 5 million tons (of which hot-rolled and hot-forged steel balls account for 65%). The average consumption of hot-rolled and hot-forged steel b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/36C21D1/63
Inventor 李明聪王峥嵘梁启萍程宁
Owner 沈阳国谷新材料有限公司
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