A finned feeder sleeve design that prevents shrinkage during the casting of hub parts.

Abstract

The invention is an efficient feeder sleeve design that prevents shrinkage defects in the casting of hub parts. The invention basically consists of an exothermic sleeve (1) with a multi-wing (1.1) structure that supports the metal instead of enveloping it, and channel voids (22) created in the molding sand through these wings. Thanks to this design, metal / material costs are reduced and grinding costs are lowered with the small heel design.

Description

1 TARIFF A finned device that prevents shrinkage during the casting of hub parts. NUTRITION SHIRT STRUCTURE TECHNICAL FIELD The invention relates to the casting industry, particularly the casting of automotive hub parts. The invention is particularly relevant for hubs manufactured from materials with high elongation capability. Exothermic with a winged structure that prevents shrinkage defects occurring during solidification. It relates to the structure of the nutrient coat. STATE OF THE ART Wheel hubs are components in the automotive industry that connect the wheel to the vehicle, carrying all the load and the most It is one of the critical safety components. The impacts these components are subjected to. In order to dampen the moisture, materials with high elongation are usually chosen, such as cast iron. These materials are preferred. However, the use of these special materials, casting 20 This significantly increases the risk of creating shrinkage defects in the part during the process. In current technology, to avoid this risk of shrinkage, a classic lidded or mini feeder is used. systems are used. The purpose of these systems is to protect hot regions. By directing solidification into the feeder, 25% of the solidification may occur on or inside the part. The purpose is to prevent voids. In classical systems, the exothermic jacket surrounds the liquid metal completely. It is positioned to wrap around the surface. However, this situation results in a high concentration of nutrients. a very large-mouthed "feeder heel" to transfer bulky liquid metal to the part It makes its use mandatory. These large-mouthed, nourishing heels are removed from the piece after the solidification process is complete. This leads to a technical problem when separating, especially for those with high elongation capabilities. In hub parts, during the process of removing these wide heels from the part, the part Cracks and deformations occur on its surface. Also, it has a large volume. 2 Exothermic jackets cause sand to burn and surface fires by overheating the sand around them. This leads to errors, and high metal usage increases production costs. Ultimately, the problems mentioned above, which cannot be solved with current technology, are related. This has made it necessary to make an innovation in the technical field. 5 A BRIEF DESCRIPTION OF THE INVENTION The present invention eliminates the aforementioned disadvantages and the related technical To bring new advantages to the field, efficient feeding in hub casting is required. 10 It relates to the development of a poultry feeder jacket design. The main purpose of the invention is to position the exothermic feeder not to surround the liquid metal, but to... The goal is to prevent the withdrawal error by structuring it in a way that will strategically support it. Another aim of the invention is to enable the design of smaller feeding mouths, to eliminate tearing problems that occur during part separation and The goal is to reduce grinding costs. Another aim of the invention is to minimize the heat transferred to the molding sand, thereby reducing sand defects. The goal is to prevent this and reduce the total cost. The best way to utilize the advantages of the existing invention, together with its structure and additional elements. For understanding, it should be evaluated together with the figures explained below. It is necessary. 25 BRIEF DESCRIPTION OF THE FIGURES Figure 1 shows a cross-section of the jacket structure, the subject of the invention, over the casting cavity. It is the appearance. 30 Figure 2 shows the detailed structure of the fin and channel gap on the exothermic jacket. It is the appearance. 3 Figure 3 shows the general application view of the invention within a casting mold. REFERENCE NUMBERS 1 Exothermic Spade 1.1 Wing 5 2 Channel Spaces 3 Liquid Metals DETAILED DESCRIPTION OF THE INVENTION This detailed explanation aims to provide a better understanding of the innovation in the invention. The invention is explained with examples that will not create any limiting effect. The invention, hub... designed to direct shrinkage voids in the casting into the feeder, It is an exothermic jacket (1) structure with a special geometry. The structure contains liquid metal. (3) It is designed in a form that supports from certain points instead of surrounding it completely. 15 The exothermic jacket (1) that is the subject of the invention has an extension from the body outwards. There are multiple wings (1.1). When the shirt is placed inside the pattern, these Channel voids (2) are created in the formwork sand thanks to the presence of wings (1.1) It consists of. Thanks to this design, there is a 20 between the exothermic jacket (1) and the molding sand. The remaining liquid metal (3) remains hot, providing a controlled solidification orientation. The most critical advantage is that, thanks to this structure, the small feeding mouths The advantage is that it allows for their use. Unlike the wide heels in classic systems, these The narrow-mouthed heels used in the construction are made from 25 high-elongation hub sections. It separates easily and does not cause fracture defects on the part surface. Furthermore... This structure, which causes minimal damage to the fabric, allows the designer to use a suitable module in a smaller area. By enabling it to calculate and operate, it also reduces the costs of exothermic materials. It lowers it.

Claims

4 REQUESTS 1. A feeder system structure that prevents shrinkage in automotive hub casting. Its characteristic is that it solidifies when placed inside a casting mold. at least one exothermic jacket (1) that supports its orientation and the aforementioned The shirt (1) contains multiple wings (1.1) extending outwards from the shirt (1).

2. A feeder system configuration according to Claim 1, characterized by the aforementioned wings. (1.1) defined in the sand by passing into the molding sand and liquid metal(3) 10 It contains at least one channel gap (2) which allows for controlled cooling.

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