Exhaust type shell chilling block structure
By designing the exhaust-type shell cold iron structure in the shell casting process, using conical exhaust holes and water-cooled containers, the problem of gas cannot overflow when the cold iron is cooled is solved, and the cooling efficiency is improved, which is suitable for large castings.
Patent Information
- Application Number
- CN202421527801.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-01
AI Technical Summary
In the shell casting process, the surface area of cold iron is too large when it is chilled, resulting in gases not being able to overflow in time, forming pores, and the traditional cold iron cooling efficiency is not ideal for large castings.
An exhaust-type shell cold iron structure is designed, including a cold iron base and a water-cooled container. A conical exhaust hole is installed on the cold iron base, and an alignment air hole is installed at the bottom of the water-cooled container. The gas discharge and water cooling efficiency are improved through the hollow layer and the water storage tank.
Through the design of conical exhaust holes, gas is effectively discharged to prevent air holes from forming on the surface of the casting; the water-cooled container improves the cooling efficiency and is suitable for large castings.
Smart Images
Figure CN222931800U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shell casting technology, in particular to an exhaust type shell cold iron structure. Background Art
[0002] At present, shell casting technology is becoming more and more popular. It has the characteristics of flexible production organization, small footprint, and suitable for small batch and multi-variety production. In some hot spots that are difficult to reach by shrinkage feeding process, we usually use chilled iron to accelerate cooling to obtain dense organization.
[0003] However, sometimes, due to the large surface area of the chill, the gas at the contact surface between the molten iron and the chill does not have time to escape, but condenses on the surface or below the surface of the casting, forming pores. In addition, for some large castings, the efficiency of traditional chill sometimes cannot achieve the expected effect.
[0004] Therefore, it is necessary to design an exhaust type shell cold iron structure which has strong practicality and high quenching efficiency and does not affect the exhaust. Utility Model Content
[0005] The utility model aims to provide an exhaust type shell chiller structure to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an exhaust type shell cold iron structure, comprising a cold iron base and a water cooling container, characterized in that: a plurality of conical exhaust holes are arranged on the cold iron base, the spacing between the conical exhaust holes is 40 to 50 mm, and two convex bayonet holes are respectively arranged on both sides of the cold iron base,
[0007] According to the above technical solution, the bottom of the cold iron base is coated with a graphite coating, and the graphite coating is in contact with the surface of the casting.
[0008] According to the above technical solution, a plurality of alignment holes are provided at the bottom of the water-cooling container, and the alignment holes are aligned and connected with the conical exhaust holes.
[0009] According to the above technical solution, two concave slots are provided at the bottom of the water-cooling container.
[0010] According to the above technical solution, a hollow layer is provided in the middle of the water-cooling container, and a water storage tank is provided above the hollow layer.
[0011] According to the above technical solution, a cylindrical middle hole is opened in the center of the water storage tank.
[0012] Compared with the prior art, the beneficial effects achieved by the utility model are: the utility model improves the quenching efficiency and solves the exhaust problem.
[0013] (1) By providing a plurality of conical exhaust holes with a spacing of 40-50 mm, it is beneficial for the gas to be discharged even, preventing the generation of air holes on the surface of the casting;
[0014] (2) By providing a water-cooled container that can cooperate with the chill base, when the chilling effect of the chill is not ideal, the chilling efficiency can be accelerated by the water-cooling method;
[0015] (3) By providing a detachable bayonet, the chill base can be separated from the water-cooled container, facilitating the cleaning of the chill after casting is completed. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:
[0017] Figure 1 is a schematic diagram of the overall front structure of the present invention;
[0018] Figure 2 is a schematic diagram of the exhaust chill base of the present invention;
[0019] Figure 3 is a schematic diagram of the water-cooled container of the present invention;
[0020] Figure 4 is a schematic diagram of the overall front sectional structure of the present invention;
[0021] In the figure: 1, chill base; 2, conical exhaust hole; 3, convex bayonet; 4, water-cooled container; 5, concave card slot; 6, water storage tank; 7, cylindrical middle hole; 8, alignment air hole; 9, hollow layer; 10, graphite coating. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0023] Please refer to Figures 1-4 , the present invention provides a technical solution: an exhaust type shell chill structure, including a chill base 1 and a water-cooled container 4. The bottom of the chill base 1 is coated with a graphite coating 10, and the graphite coating 10 is in contact with the casting. A plurality of conical exhaust holes 2 are provided on the chill base 1, and the spacing between the holes is 40-50 mm. There are two convex bayonets 3 on both sides of the chill base 1;
[0024] Several alignment air holes 8 are provided at the bottom of the water-cooled container 4, corresponding to the chills' air holes. Two concave clamping grooves 5 are opened at the bottom of the water-cooled container 4, which can be fixed with the convex clamping mouths 3. A hollow layer 9 is arranged in the middle of the water-cooled container 4 for gas circulation. A water storage tank 6 is opened above the hollow layer 9 for storing coolant. A cylindrical middle hole 7 is opened at the center of the water storage tank 6 to discharge gas.
[0025] Working principle: The staff can place the chill on the part of the casting that needs to be rapidly cooled according to the situation, with the side coated with the graphite coating 10 in contact with the casting to accelerate the cooling of the molten iron. At the same time, gas is discharged through the conical exhaust hole 2 to prevent bubbles from being generated in the casting due to exhaust.
[0026] When the rapid cooling efficiency fails to reach the ideal effect, the water-cooled container 4 is installed on the chill base 1 and fixed through the convex clamping mouth 3 and the concave clamping groove 5. The coolant is poured into the water storage tank 6 for water cooling. At this time, the gas generated by the casting can flow through the conical exhaust hole 2 and the alignment air holes 8 to the hollow layer 9, and then be discharged from the cylindrical middle hole 7.
[0027] After the rapid cooling is completed, first remove the water-cooled container 4, recover the coolant, and then remove the chill base 1 for cleaning.
[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.
[0029] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An exhaust type shell chiller structure, comprising a chiller base (1) and a water cooling container (4), characterized in that: A plurality of conical exhaust holes (2) are arranged on the cold iron base (1), the spacing between the conical exhaust holes (2) is 40 to 50 mm, and two convex bayonet holes (3) are respectively arranged on both sides of the cold iron base (1).
2. The exhaust type shell chiller structure according to claim 1, characterized in that: The bottom of the cold iron base (1) is coated with a graphite coating (10), and the graphite coating (10) is in contact with the surface of the casting.
3. The exhaust type shell chiller structure according to claim 2, characterized in that: A plurality of alignment air holes (8) are provided at the bottom of the water-cooling container (4), and the alignment air holes (8) are aligned and connected with the conical exhaust holes (2).
4. The exhaust type shell chiller structure according to claim 3, characterized in that: Two concave slots (5) are provided at the bottom of the water-cooling container (4).
5. The exhaust type shell chiller structure according to claim 4, characterized in that: A hollow layer (9) is provided in the middle of the water-cooling container (4), and a water storage tank (6) is provided above the hollow layer (9).
6. The exhaust type shell chiller structure according to claim 5, characterized in that: A cylindrical middle hole (7) is provided at the center of the water storage tank (6).