A non-stick cast iron machine liner

The cast iron liner with a multi-layered component structure solves the problem of molten metal adhesion during the casting process, achieving high temperature resistance, impact resistance, and anti-adhesion effects, thus improving the stability and cleaning efficiency of the device.

CN224333430UActive Publication Date: 2026-06-09ANGANG GRP YONGTONG DUCTILE CAST IRON PIPE CO LTD +3

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANGANG GRP YONGTONG DUCTILE CAST IRON PIPE CO LTD
Filing Date
2025-03-17
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

During the casting process, molten metal tends to adhere to the surface of the cast iron machine lining, making cleaning difficult and reducing product quality.

Method used

It adopts a multi-layer component structure, including a stainless steel protective shell, an alloy steel reinforcing layer, a high-chromium cast iron inner lining body, and a ceramic inner lining coating, combined with a limiting ring design, to provide high temperature resistance, impact resistance, and anti-adhesion performance.

Benefits of technology

It improves the stability and service life of the cast iron machine liner, reduces the adhesion of molten metal, and enhances operating efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to foundry technology field discloses an anti -sticky cast -iron machine lining, including protection shell, the inside fixedly connected with reinforcing layer of protection shell, the inside fixedly connected with lining body of reinforcing layer, both sides of lining body all are fixedly connected with limit ring, the inner surface of limit ring is provided with lining coating, the utility model discloses through setting up the cooperation of lining body and lining coating, and lining body has higher hardness, can effectively bear the impact of metal liquid, and keeps the surface not to be abraded, is helpful to prolong the service life of lining body, and lining coating can help lining body to reduce the adhesion of metal liquid, thereby further improved the anti -sticky effect of lining, reduced the contact friction of metal liquid and lining body, prevented the metal liquid deposition, therefore also further improved the final product quality.
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Description

Technical Field

[0001] This utility model relates to the field of casting technology, and in particular to an anti-sticking cast iron machine liner. Background Technology

[0002] The main function of the cast iron machine liner is to act as a container for molten metal, carrying and guiding the flow of molten metal (such as cast iron, aluminum, etc.) during the casting process, protecting the cast iron machine itself from corrosion and damage by the molten metal, and at the same time, it needs to withstand extremely high temperatures and pressures.

[0003] Currently, there are various types of cast iron machine liners on the market. However, during the casting process, especially at high temperatures, when molten metal comes into contact with the surface of the cast iron machine liner, adhesion can easily occur. The molten metal may form a crust or deposit on the contact surface, which not only increases the difficulty of cleaning but also reduces the quality of the final product to some extent. Utility Model Content

[0004] This invention solves the problem that during the casting process of certain devices on the market, especially at high temperatures, molten metal tends to adhere to the inner lining surface of the cast iron machine. The molten metal may form a crust or adhesion layer on the contact surface, which not only increases the difficulty of cleaning but also reduces the quality of the final product to some extent. Therefore, it provides an anti-sticking cast iron machine lining.

[0005] This utility model is achieved by the following technical solution: a non-stick cast iron machine liner, including a protective shell, a reinforcing layer fixedly connected inside the protective shell, an inner liner body fixedly connected inside the reinforcing layer, and limit rings fixedly connected to both sides of the inner liner body, with an inner liner coating provided on the inner surface of the limit rings.

[0006] Through the above technical solutions, the protective shell acts on the external environment to protect the stability of the entire device, the reinforcement layer can further protect the inner lining body and prevent external impacts from causing unnecessary damage to the inner lining body, the inner lining coating can further reduce the adhesion of molten metal, and the limiting ring can improve the work efficiency of the staff.

[0007] As a further improvement to the above solution, the protective shell is made of stainless steel.

[0008] Through the above technical solutions, stainless steel can withstand high-temperature environments, avoid damage from high-temperature molten metal during the casting process, and provide good stability for the entire device.

[0009] As a further improvement to the above solution, the material of the reinforcing layer is high-strength alloy steel.

[0010] Through the above technical solution, the reinforcement layer improves the impact resistance of the entire device by dispersing the impact force, thus ensuring the stability of the lining.

[0011] As a further improvement to the above scheme, the material of the inner lining body is high-chromium cast iron.

[0012] Through the above technical solution, high-chromium cast iron has high hardness, which can effectively withstand the impact of molten metal and keep the surface from being worn, further ensuring that the internal molten metal can smoothly enter the next process.

[0013] As a further improvement to the above solution, the material of the inner lining coating is ceramic.

[0014] The above technical solutions can reduce the adhesion of molten metal, further improve the anti-sticking effect of the lining, and thus extend the service life of the equipment.

[0015] As a further improvement to the above solution, both the protective shell and the reinforcing layer are located between the limiting rings.

[0016] Through the above technical solution, the limiting ring can further limit and fix the entire device, and at the same time help the staff with the installation, thereby improving work efficiency.

[0017] As a further improvement to the above scheme, the inner diameter of the limiting ring is equal to the inner diameter of the inner lining body.

[0018] The above technical solutions further ensure that the molten metal can flow smoothly out of the inner lining body and enter the next process.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention utilizes the cooperation between the inner lining body and the inner lining coating. The inner lining body has high hardness, which can effectively withstand the impact of molten metal and keep the surface from being worn, thus helping to extend the service life of the inner lining body. The inner lining coating can help the inner lining body reduce the adhesion of molten metal, thereby further improving the anti-sticking effect of the lining, reducing the contact friction between molten metal and the inner lining body, preventing molten metal deposition, and thus further improving the final product quality.

[0021] This invention, by setting a reinforcing layer and a limiting ring, ensures that when the cast iron machine is impacted by external force, the reinforcing layer has sufficient toughness and strength to withstand the impact and transmit the impact force to the surrounding area. This effectively reduces the risk of damage to the inner lining body, protects the inner lining body from external physical damage, improves the impact resistance of the entire device, and ensures the stability of the inner lining. The limiting ring makes the entire device easier to install and disassemble, improves operating efficiency, reduces the difficulty of manual installation, and further enhances the actual effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the reinforcing layer of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the inner lining body of this utility model.

[0025] Explanation of key symbols:

[0026] 1. Protective shell; 2. Reinforcing layer; 3. Inner liner body; 4. Limiting ring; 5. Inner liner coating. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example:

[0029] Please combine Figure 1-3 The non-stick cast iron machine liner of this embodiment includes a protective shell 1, a reinforcing layer 2 fixedly connected inside the protective shell 1, an inner liner body 3 fixedly connected inside the reinforcing layer 2, and limit rings 4 fixedly connected to both sides of the inner liner body 3. The inner surface of the limit rings 4 is provided with an inner liner coating 5.

[0030] The protective shell 1 is made of stainless steel, which can resist most acid and alkali corrosion and withstand high temperature environments, further protecting the entire device and ensuring that it can still work stably in harsh environments.

[0031] The reinforcing layer 2 is made of high-strength alloy steel. When the cast iron machine is subjected to external impact, the reinforcing layer 2 has sufficient toughness and strength to withstand the impact and transmit the impact force to the surrounding area. This can effectively reduce the risk of damage to the inner lining body 3, protect the inner lining body 3 from external physical damage, improve the impact resistance of the entire device, and ensure the stability of the inner lining.

[0032] The inner liner body 3 is made of high-chromium cast iron, which has high hardness and can effectively withstand the impact of molten metal and keep the surface from being worn, thereby ensuring that the molten metal can smoothly enter the next process and extending the service life of the inner liner body 3.

[0033] The inner lining coating 5 is made of ceramic. The inner lining coating 5 provides a smooth surface, which further improves the anti-stick effect of the inner lining by reducing the adhesion of molten metal. It also reduces the contact friction between molten metal and the inner lining body 3, prevents molten metal deposition, and thus further extends the service life of the equipment.

[0034] The protective shell 1 and the reinforcing layer 2 are both located between the limiting ring 4. The limiting ring 4 can further limit and fix the entire device, and at the same time help the staff to install it, thus further improving work efficiency.

[0035] The inner diameter of the limiting ring 4 is equal to the inner diameter of the inner lining body 3, ensuring that the molten metal can flow smoothly out of the inner lining body 3 and enter the next process, further improving the actual effect.

[0036] The implementation principle of the anti-sticking cast iron machine liner in this embodiment is as follows: The device is formed by a combination of multiple components. The outermost protective shell 1 is made of a corrosion-resistant and high-temperature-resistant material, which can resist most acid and alkali corrosions and is also resistant to high temperatures, making it usable in most environments, thus effectively protecting the entire device. The middle reinforcing layer 2 has good mechanical strength and toughness. When the entire device is impacted, the reinforcing layer 2 can withstand the impact force and continuously transmit the impact force to the surrounding area, thereby further effectively protecting the inner liner body 3 inside the device. The inner liner body 3 has high hardness and excellent wear resistance. When molten metal comes into contact with the inner liner surface of the cast iron machine, the inner liner body 3 can withstand its high temperature, thereby further protecting the inner liner body 3. To ensure the smooth flow of molten metal into the next process, the inner lining body 3 enhances the corrosion resistance and hardness of cast iron, effectively reducing material adhesion. The smooth surface of the inner lining coating 5 on the inner wall of the inner lining body 3 further reduces material adhesion while allowing the molten metal to flow out smoothly, thus extending the service life of the device and reducing the need for cleaning the inner lining body 3. The limiting ring 4 is fixedly connected at both ends, further securing the entire device and facilitating installation by workers, further improving work efficiency. The entire device protects the inner lining body 3 while preventing molten metal from adhering to the inner wall of the inner lining body 3, thereby improving the actual effectiveness of the entire device.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A non-stick cast iron machine liner, characterized in that, The protective shell (1) is fixedly connected to the inside of the protective shell (1), and the inner lining body (3) is fixedly connected to the inside of the reinforcing layer (2). Limiting rings (4) are fixedly connected to both sides of the inner lining body (3), and the inner surface of the limiting rings (4) is provided with an inner lining coating (5).

2. The anti-stick cast iron machine liner as described in claim 1, characterized in that: The protective shell (1) is made of stainless steel.

3. The anti-stick cast iron machine liner as described in claim 2, characterized in that: The material of the reinforcing layer (2) is high-strength alloy steel.

4. The anti-stick cast iron machine liner as described in claim 3, characterized in that: The material of the inner lining body (3) is high-chromium cast iron.

5. The anti-stick cast iron machine liner as described in claim 4, characterized in that: The material of the inner lining coating (5) is ceramic.

6. The anti-stick cast iron machine liner as described in claim 5, characterized in that: The protective shell (1) and the reinforcing layer (2) are both located between the limiting ring (4).

7. The anti-stick cast iron machine liner as described in claim 6, characterized in that: The inner diameter of the limiting ring (4) is equal to the inner diameter of the inner lining body (3).