Band saw blade heat treatment technology

A band saw blade and preheating technology, which is applied in heat treatment furnaces, heat treatment equipment, metal material coating technology, etc., can solve the problems of hard sawing hard materials and insufficient hardness of band saw blades, etc.

Active Publication Date: 2015-11-18
湖南台锯科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a technical solution for the band saw blade heat treatment process to solve the problem of insufficient hardness of the band saw blade treated by the conventional band saw blade heat treatment process in the prior art introduced in the background art, and it is difficult to saw materials with relatively high hardness question

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  • Band saw blade heat treatment technology
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Embodiment Construction

[0024] The band saw blade heat treatment process provided by the embodiment of the present invention solves the problem of low hardness of the band saw blade produced by the conventional band saw blade heat treatment process in the prior art introduced in the background art.

[0025] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention are described below in conjunction with the accompanying drawings The program is described in further detail.

[0026] Please refer to the attached figure 1 , figure 1 It is a schematic flow chart of the first band saw blade heat treatment process shown in an exemplary embodiment of the present invention. The band saw blade heat treatment process provided b...

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Abstract

The invention provides band saw blade heat treatment technology. The technology comprises the following steps: A. preheating: preheating a band saw blade and removing the moisture on the surface of the band saw blade, wherein the temperature ranges from 350 DEG C to 400 DEG C and comprises 350 DEG C and 400 DEG C; the time ranges from 20 minutes to 40 minutes and comprises 20 minutes and 40 minutes; B. salt bath nitriding: carrying out salt bath nitriding treatment on the surface of the band saw blade by using QPQ (quench-polish-quench) nitriding salt so that active nitrogen in the QPQ nitriding salt permeates a metal lattice of the band saw blade, wherein the temperature ranges from 520 DEG C to 580 DEG C and comprises 520 DEG C and 580 DEG C; the salt bath nitriding time ranges from 10 minutes to 180 minutes and comprises 10 minutes and 180 minutes; C. salt bath oxidizing: carrying out salt bath oxidizing treatment on the band saw blade by using QPQ oxidizing salt to decompose cyanides on the surface of the band saw blade and form an oxidation film on the surface of the band saw blade, wherein the temperature ranges from 370 DEG C to 400 DEG C and comprises 370 DEG C and 400 DEG C; the time ranges from 15 minutes to 20 minutes and comprises the end value. The hardness and corrosion resistance of the band saw blade can be reinforced by adopting the band saw blade heat treatment technology.

Description

technical field [0001] The invention relates to the technical field of band saw blade treatment, and more specifically, relates to a band saw blade heat treatment process. Background technique [0002] The band saw blade is a band saw blade composed of a tough, sharp-toothed saw blade tensioned in a frame, which can cut hard materials such as metal. Since the band saw blade needs to cut materials with relatively high hardness, the band saw blade itself needs a great hardness. Therefore, in order to ensure the hardness of the band saw blade, heat treatment is required for the band saw blade. [0003] In the prior art, the conventional band saw blade heat treatment process often only includes two processes of quenching and tempering. There are no other heat treatment steps after the above process. The hardness of the band saw blade after the above steps can only reach 900HV0.2 (HV is the Vickers hardness, 900 is the Vickers hardness value, and 0.2 is the load value used for m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/24C23C8/58C23C8/50C23C8/42
Inventor 邹茂旻汤晶颜涯
Owner 湖南台锯科技有限公司
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