Metal heat treatment anti-oxidation device

Abstract

The utility model relates to the technical field of metal material heat treatment, and particularly discloses a metal heat treatment anti-oxidation device which comprises a base, a cover, activated carbon and quartz sand, the base is a box body with an opening in the upper end, the cover is a box body with an opening in the lower end, and the cover is placed in an inner cavity of the base to cover a metal part; activated carbon is arranged on the periphery of the part in the cover and can adsorb oxygen entering the cover, the size of the cover in the horizontal direction is smaller than that of an inner cavity of the base, a containing space is formed between the inner wall of the base and the outer side wall of the cover, and quartz sand is filled in the containing space so that a closed space can be formed in the cover. Gaps are small after the quartz sand is stacked, air convection can be reduced, the effect of temporarily isolating air is achieved, metal parts in the cover are effectively prevented from being in contact with oxygen in the air to generate oxidation reaction in the heat treatment process, the structure is simple and reliable, materials are convenient to obtain, cost is low, and the device is suitable for heat treatment of common metal parts.

Description

Technical Field

[0001] This utility model relates to the field of metal material heat treatment technology, specifically to a metal heat treatment anti-oxidation device. Background Technology

[0002] During the heat treatment of metal parts, the parts are prone to react with oxygen in the air, leading to metal oxidation. This affects the quality, performance, and dimensional deviations of the parts. There are many existing methods to prevent metal oxidation during heat treatment, such as using inert gases to protect the metal parts, creating a vacuum environment, and applying high-temperature resistant coatings to the surface of the metal parts. These methods require sophisticated equipment, increasing processing costs. For example, patent CN218860796U discloses a high-temperature heating anti-oxidation and decarburization device, whose sealing mechanism includes a housing, a sealing part, and a detachable connection. The design includes a quenching basket inside the box, a placement cavity and an extension cavity, a sealing part for sealing the box and the quenching basket, and a sealing quartz sand layer inside both the extension cavity and the box. A primary charcoal layer is located in the placement cavity, and a secondary charcoal layer is located inside the box and below the quenching basket. This design uses a quartz sand layer to isolate air and uses the charcoal layer to burn and consume oxygen inside the box, reducing the amount of oxygen flowing into the product heating zone. However, this device has a relatively complex structure and high processing costs, making it unsuitable for ordinary metal parts. Furthermore, existing heat treatment fixtures are difficult to effectively prevent the oxidation of metal parts during use, causing many inconveniences in production. Utility Model Content

[0003] To address the shortcomings of existing technologies, the technical problem solved by this utility model is to provide a metal heat treatment anti-oxidation device, which solves the problem that existing heat treatment tooling cannot effectively prevent the oxidation of metal parts.

[0004] To solve the above problems, the technical solution adopted by this utility model is: a metal heat treatment anti-oxidation device, including a base, a cover, activated carbon and quartz sand. The base is a box with an opening at the top, and the cover is a box with an opening at the bottom. The cover is placed in the inner cavity of the base to cover the metal parts. Activated carbon is arranged around the parts inside the cover. The horizontal dimension of the cover is smaller than the dimension of the inner cavity of the base. An accommodating space is formed between the inner wall of the base and the outer wall of the cover. Quartz sand is filled in the accommodating space.

[0005] Furthermore, the lid is provided with a handle.

[0006] Furthermore, the base and the cover are in the shape of a cube or a cuboid.

[0007] Furthermore, the base and cover are made of 309S stainless steel.

[0008] Furthermore, the quartz sand has a particle size of 0.2 mm to 0.4 mm.

[0009] Furthermore, the activated carbon is granular activated carbon with a particle size range of 0.2 mm to 5 mm.

[0010] The beneficial effects of this solution are as follows: Compared with the prior art, the metal heat treatment anti-oxidation device of this utility model covers the metal parts with a base and a cover, sets activated carbon around the parts to adsorb oxygen, and fills the space between the base and the cover with quartz sand to isolate the air, effectively preventing the metal parts from contacting oxygen in the air and causing an oxidation reaction. The device has a simple and reliable structure, is easy to obtain materials and has low cost, and is suitable for heat treatment of ordinary metal parts. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a cross-sectional view of the present invention;

[0013] Figure 3 This is a schematic diagram of the lid of this utility model;

[0014] Figure 4 This is a schematic diagram of the base of this utility model;

[0015] In the picture: 1-base, 2-lid, 3-activated carbon, 4-quartz sand, 5-metal parts, 6-handle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Implementation, for example, attached Figures 1 to 4As shown: A metal heat treatment anti-oxidation device includes a base 1, a cover 2, activated carbon 3, and quartz sand 4. The base 1 is a box with an open top, and the cover 2 is a box with an open bottom. The cover 2 is placed inside the cavity of the base 1 to cover the metal part 5. Activated carbon 3 is placed around the part inside the cover 2. The activated carbon 3 can adsorb oxygen entering the cover 2. The activated carbon 3 is granular activated carbon with a particle size range of 0.2mm to 5mm. It has good gas adsorption performance and can be reused. The horizontal dimension of the cover 2 is smaller than the dimension of the cavity of the base 1. An accommodating space is formed between the inner wall of the base 1 and the outer wall of the cover 2. Quartz sand 4 is filled in the accommodating space to form a closed space inside the cover 2. The small gaps after the quartz sand 4 is piled up can reduce air convection and achieve a temporary air isolation effect, effectively preventing the metal part 5 inside the cover 2 from contacting oxygen in the air and undergoing an oxidation reaction during heat treatment. The particle size of the quartz sand 4 can be selected from 0.2mm to 0.4mm. It has a high packing density and a good air isolation effect.

[0018] The lid 2 is provided with a handle 6 for easy removal and placement. The base 1 and lid 2 are cubes or cuboids in shape, and the manufacturing process is simple and low-cost. The base 1 and lid 2 are made of 309S stainless steel, which is heat-resistant and low-cost, and can be used in environments up to 1000℃.

[0019] The specific implementation process is as follows:

[0020] Place the metal part 5 in the middle of the inner cavity of the base 1, and place activated carbon 3 around the metal part 5 to adsorb oxygen in the device. Then cover the metal part 5 and activated carbon 3 with the cover 2. Fill the space between the base 1 and the cover 2 with quartz sand 4 to isolate the air. Finally, put the entire device into a box furnace for heat treatment. During the heat treatment process, the oxidation reaction of the metal part 5 due to contact with oxygen in the air can be effectively avoided.

[0021] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A metal heat treatment anti-oxidation device, characterized in that: The device includes a base, a lid, activated carbon, and quartz sand. The base is a box with an open top, and the lid is a box with an open bottom. The lid is placed inside the base to cover the metal parts. Activated carbon is placed around the parts inside the lid. The horizontal dimension of the lid is smaller than the dimension of the inner cavity of the base. An accommodating space is formed between the inner wall of the base and the outer wall of the lid, and the accommodating space is filled with quartz sand.

2. The metal heat treatment anti-oxidation device according to claim 1, characterized in that: The lid has a handle.

3. The metal heat treatment anti-oxidation device according to claim 1, characterized in that: The base and cover are in the shape of a cube or a cuboid.

4. The metal heat treatment anti-oxidation device according to claim 1, characterized in that: The base and cover are made of 309S stainless steel.

5. The metal heat treatment anti-oxidation device according to claim 1, characterized in that: The quartz sand has a particle size of 0.2 mm to 0.4 mm.

6. The metal heat treatment anti-oxidation device according to claim 1, characterized in that: The activated carbon is granular activated carbon with a particle size range of 0.2 mm to 5 mm.

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