Investment casting method of special chain chain plate for crushing waste lead-acid battery

Abstract

The invention relates to the technical field of precision casting, in particular to a special chain and chain plate investment casting method for crushing waste lead-acid storage batteries. When a waxmold is manufactured, a filler wax core and a metal insert are placed in a mold cavity, specifically, the filler wax core is a hexagonal prism, and a plurality of supporting suspension pillars are arranged on the outer surface of the filler wax core; after wax is injected into the mold cavity, the ends of the supporting suspension pillars are molten, the wax wraps the filler wax core to form a connection base, meanwhile the wax forms a connection plate, a first chain plate and a second chain plate in the mold cavity, and the metal insert is located between the first chain plate and the secondchain plate; then the metal insert is taken out together with the wax mold, supporting rod wax strips are arranged at the ends of the first chain plate and the second chain plate, the metal insert istaken out after the supporting rod wax strips are solidified, the wax mold is obtained accordingly, and then the wax mold is utilized for casting. By means of the special chain and chain plate investment casting method for crushing the waste lead-acid storage batteries, the defects that the thick portion of a wax mold shrinks too much and the thin portion of the wax mold is prone to deforming andpoor in strength are overcome, the quality of the wax mold is improved, and the quality of castings can be improved advantageously.

Description

technical field [0001] The invention relates to the technical field of precision casting, in particular to an investment casting method for chains and plates specially used for crushing waste lead-acid batteries. Background technique [0002] Waste lead-acid batteries need to be crushed during recycling, and then processed and recycled for different components. Since the crushed mixture contains acid and other sundries, it is required that the parts in contact with it must have good acid resistance and corrosion resistance. , Wear resistance. For example, the special chain chain plate for waste lead-acid battery crushing is one of the transmission chains used for the waste lead-acid battery crushing device, also known as the chain plate, and its structure is as attached figure 1 As shown, it includes connecting plate 1, connecting seat 2, first link plate 3, and second link plate 4. In the prior art, the method of processing them separately and then welding them into compon...

AI Technical Summary

Problems solved by technology

For example, the special chain chain plate for waste lead-acid battery crushing is one of the transmission chains used for the waste lead-acid battery crushing device, also known as the chain plate, and its structure is as attached figure 1 As shown, it includes connecting plate 1, connecting seat 2, first link plate 3, and second link plate 4. In the prior art, the method of processing them separately and then welding them into components is generally adopted. For the joint surface, this method is due to Welding the outer edge, but not the inside of the joint surface, on the one hand, it is easy to produce welding defects, on the other hand, it will cause the weld seam to be corroded and worn, and the connection strength is not enough, making the components disintegrate and scatter

[0003] However, if investment casting is adopted, due to the complexity of the structure, there are especially the following difficulties: one is that the volume of the connecting seat 2 is relatively large, and the wax mold will shrink too much at this position, resulting in defects in the wax mold; The second is that the first chain plate 3 and the second chain plate 4 are parallel to each other, especially the part where the second chain plate 4 is connected to the connecting seat 2 is shorter, while the first chain plate 3 and the second chain plate 4 are longer in size. When making wax models, the first chain plate 3 and the second chain plate 4 are prone to deformation, and even the strength is not enough to cause damage. Crystallization, causing the wax liquid to fail to fill the mold cavity smoothly, thus making the wax pattern defective

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