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Production method of high speed steel prehardening materials

A production method, high-speed steel technology, applied in the direction of improving energy efficiency, process efficiency, furnace type, etc., can solve problems such as unstable performance, manual straightening, large furnace loading, etc., and achieve stable product quality, organization and Stable performance and reduced inventory

Active Publication Date: 2010-03-10
烟台百特合金材料制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large amount of furnace loaded in the tempering furnace, the heating time and heating temperature of each workpiece are inconsistent, resulting in unstable performance. At the same time, there are many wavy bends in the workpiece, which requires a lot of manual straightening

Method used

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  • Production method of high speed steel prehardening materials

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Embodiment

[0038] Embodiment, a kind of production method of high-speed steel pre-hardened material, this method uses high-speed steel wire rod as raw material, each process is produced continuously, uninterrupted, is to adopt straightening machine to pre-straighten raw material first, utilize the damping roll of straightening machine to apply Pre-stressing, quenching and heating the pre-straightened raw materials in a controlled atmosphere or in a salt bath furnace or an induction furnace, the heating temperature is 1120-1260 ° C, the running speed is 50-2000mm / min, after quenching, use a wire drawing die to adjust the high speed The steel wire is slightly deformed, the deformation amount is 0-0.1mm, and then quenched, and the steel wire is pressed and cooled with a straightening machine and a water-cooled jacket to reduce cooling deformation. ℃-660℃ for the first tempering to transform the retained austenite into martensite, reduce the stress and make the hardness meet the requirements,...

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Abstract

The invention discloses a production method of high speed steel prehardening materials, which comprises the following steps: using a high speed steel wire as a raw material, prestraightening the raw material, quenching and heating the prestraightened raw material; carrying out small deformation and quenching straightening for the quenched high speed steel wire by a wire drawing die; tempering, straightening, tempering, straightening and cooling the high speed steel wire in a tempering furnace; forming a product through the traction of a tractor and carrying out dimensioning cut-off for the product. The production method of the high speed steel prehardening materials has the characteristics that quenching, tempering and straightening are combined for continuous production, the online production of the prehardening high speed steel wire is realized, the product has identical organization and performance as well as realizable and stable quality, and various high speed steel prehardening materials with the length of more than 2m and good straightness can be produced.

Description

technical field [0001] The invention belongs to the technical field of processing methods for special steel materials, and in particular relates to a method for producing high-speed steel pre-hardened materials. Background technique [0002] At present, the production of high-speed steel pre-hardened materials is to use high-speed steel discs to straighten and cut (the length is generally 2m), and then cut the straightened strips according to production requirements. Put it into a salt bath furnace to heat, rub it straight with a washboard, and press and quench it. The quenched steel wires are bundled into bundles and the bundles are stacked in baskets for tempering. Due to the large amount of furnace loaded in the tempering furnace, the heating time and heating temperature of each workpiece are inconsistent, resulting in unstable performance. At the same time, there are many wavy bends in the workpiece, which requires a lot of manual straightening. This method is acceptab...

Claims

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Application Information

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IPC IPC(8): C21D8/06C21D1/18C21D1/42C21D1/46C21D1/74C21D9/52C21D11/00
CPCY02P10/25
Inventor 姚凤臣
Owner 烟台百特合金材料制造有限公司
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