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A tempering process based on metal heat treatment

A metal heat treatment and process technology, applied in metal material coating process, heating inorganic powder coating, coating and other directions, can solve problems such as the influence of the overall strength of the metal, the brittleness of metal tempering, and the reduction of service life, and the protection is not easy to continue. The effect of increasing, combining well and reducing waste rate

Active Publication Date: 2022-03-29
SHANDONG JINZHU MATERIALS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Usually, after tempering, certain cracks will appear on the metal surface, which will have a certain impact on the overall strength of the metal after tempering, and the cracks will easily lead to the reduction of its service life. Fire brittleness, which also affects metal strength

Method used

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  • A tempering process based on metal heat treatment
  • A tempering process based on metal heat treatment
  • A tempering process based on metal heat treatment

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Embodiment 1

[0049] see figure 1 , a tempering process based on metal heat treatment, comprising the following steps:

[0050] S1, first put the metal that has been annealed, normalized, and quenched into the tempering furnace for tempering treatment;

[0051] S2. Low-temperature tempering and high-temperature tempering are performed alternately, and the temperature is continuously changed back and forth between the temperature gaps of high-temperature tempering and low-temperature tempering;

[0052] S31. During low-temperature tempering, inert gas is introduced into the furnace chamber of the tempering furnace, thereby driving the self-attached seam-filling particles in the semi-transparent torsion rod 4 to fill the furnace chamber and adhere to the metal surface;

[0053] S32. Please refer to Figure 4 , when tempering at high temperature, stop the introduction of gas, and use the electrostatic generator to generate static electricity on the semi-transparent torsion rod 4, and absorb ...

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Abstract

The invention discloses a tempering process based on metal heat treatment, which belongs to the field of tempering treatment. A tempering process based on metal heat treatment is carried out by intersecting low-temperature tempering and high-temperature tempering. The inert gas drives the self-adhesive seam filling particles to fall and evenly adhere to the metal surface. At this time, the outer temporary wrapping layer is hot-melted and has a certain viscosity, which can effectively increase its adhesion to the metal surface. The temporary coating gradually melts and vaporizes, and the caulking powder inside it and the slow-brittle fluff remain on the metal surface and condense to form a layer of caulking on the metal surface. On the one hand, the caulking powder can penetrate into the In the cracks formed on the metal surface, the crack rate of the metal surface after tempering is significantly reduced. On the other hand, the seam repair layer can effectively improve the strength of the metal surface after tempering, and effectively compensate for the impact of tempering brittleness on the metal.

Description

technical field [0001] The invention relates to the field of tempering treatment, more specifically, to a tempering process based on metal heat treatment. Background technique [0002] Tempering treatment is a technique for smelting steel. It refers to the process of cooling the steel that has been quenched and hardened or normalized at a temperature lower than the critical temperature for a period of time to increase the toughness of the material. a treatment. According to the principle of metallurgy, after quenching and normalization treatment, put it back to the middle temperature for a period of time (aging), which can promote the precipitation of part of the carbide, and at the same time can eliminate part of the residual stress caused by rapid cooling, so it can improve the hardness of the material. toughness and flexibility. [0003] The effect of tempering treatment depends on factors such as tempering temperature, time and cooling rate. As the tempering temperatu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D1/18C21D1/26C21D1/28C21D1/74C23C24/08
CPCC21D1/18C21D1/26C21D1/28C21D1/74C23C24/087
Inventor 陈权
Owner SHANDONG JINZHU MATERIALS TECH
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