Abrasion-resistant ceramic composite roller skin prefabricated body butt joint structure

Abstract

The utility model discloses a wear-resistant ceramic composite roller skin prefabricated body butt joint structure, which relates to the technical field of roller skin structures, and comprises prefabricated blocks with different sizes formed by segmenting prefabricated bodies, each prefabricated block consists of a plurality of honeycomb structure units, and the edges of the prefabricated blocks with different sizes are mutually staggered and combined. Prefabricated bodies of different structures are designed according to the shape of a composite area, the prefabricated bodies are divided into the prefabricated blocks of different sizes, and the prefabricated blocks are staggered and combined to form an indented structure, so that on one hand, the overall structural strength of the prefabricated bodies is reduced, on the other hand, the energy required by crack extension is increased, and the purposes of reducing cracks and improving the construction quality are achieved. And the crack extension risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of roller skin structures, in particular to a wear-resistant ceramic composite roller skin preform butt joint structure. Background Art

[0002] Metal-based wear-resistant ceramic reinforced composite materials are composites of metal materials and wear-resistant ceramics. Due to the large difference in thermal expansion coefficients between the two materials, huge internal stress is generated during the solidification and shrinkage process. In order to prevent the ceramic material from dispersing during the pouring process and failing to ensure the overall structure, the ceramic particles are usually pretreated by sintering or adding a binder to ensure that the ceramic particles have sufficient structural strength. When the roller skin is manufactured using the above materials, the strong ceramic preform hinders the solidification and shrinkage of the molten metal, further increasing the internal stress of the composite material. Cracks are very likely to occur in the composite area, and there is a risk of falling off as the cracks extend during use. Utility Model Content

[0003] The utility model aims to provide a wear-resistant ceramic composite roller skin preform butt joint structure to overcome the above-mentioned defects in the prior art.

[0004] A wear-resistant ceramic composite roller skin preform butt joint structure comprises prefabricated blocks of different sizes formed by dividing the prefabricated body, the prefabricated blocks are composed of a plurality of honeycomb structural units, and the edges of the prefabricated blocks of different sizes are staggered and combined with each other.

[0005] Preferably, the size of the largest prefabricated block is 1-5 times the size of the smallest prefabricated block.

[0006] Preferably, the gap distance a between two prefabricated blocks is 0.1-3 times the wall thickness b of the prefabricated blocks.

[0007] Preferably, the prefabricated block is a curved structure.

[0008] The utility model has the following advantages:

[0009] When the utility model is in use, prefabricated bodies with different structures are designed according to the shape of the composite area, and the prefabricated bodies are divided into prefabricated blocks of different sizes. The prefabricated blocks are staggered and combined with each other to form a staggered structure. On the one hand, the overall structural strength of the prefabricated body is reduced, and on the other hand, the energy required for crack extension is increased, thereby achieving the purpose of reducing cracks and reducing the risk of crack extension. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the prefabricated body of the utility model.

[0011] Figure 2 It is a schematic diagram of the structure between the prefabricated blocks of the utility model. DETAILED DESCRIPTION

[0012] The specific implementation methods of the utility model are further explained in detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the utility model.

[0013] like Figure 1-2 As shown, the utility model provides a wear-resistant ceramic composite roller skin preform docking structure, including prefabricated blocks of different sizes formed by dividing the prefabricated body, the prefabricated blocks are curved structures, the prefabricated blocks are composed of a plurality of honeycomb structural units, and the edges of the prefabricated blocks of different sizes are staggered and combined with each other.

[0014] It should be noted that the size of the largest prefabricated block is 1-5 times the size of the smallest prefabricated block. The corresponding prefabricated blocks are formed by dividing the prefabricated body. The gap distance a between the two prefabricated blocks is 0.1-3 times the wall thickness b of the prefabricated block. On the one hand, it can reduce the overall structural strength of the prefabricated body, and on the other hand, it can increase the energy required for crack extension, thereby achieving the purpose of reducing cracks and reducing the risk of crack extension.

[0015] Specific implementation and principle:

[0016] In actual application, the utility model selects a suitable composite area and a composite size according to the position and size of the product wear area, designs the preform into a specific honeycomb structure, ensures that the entire composite area is larger than the actual application wear area, and divides the preform into a plurality of prefabricated blocks of different sizes. The size of the prefabricated blocks can be adjusted according to the equipment and the overall size of the prefabricated body. The size of the largest prefabricated block is 1-5 times the size of the smallest prefabricated block. After the division, the structure between the prefabricated blocks is adjusted, and the completed hole structure is modified into a mutually staggered canine tooth structure, ensuring that the gap a between the canine teeth of the prefabricated blocks is 0.1-3 times the wall thickness b of the prefabricated body.

[0017] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A wear-resistant ceramic composite roller skin preform butt joint structure, characterized in that: It comprises prefabricated blocks of different sizes formed by dividing a prefabricated body, the prefabricated blocks are composed of a plurality of honeycomb structural units, and the edges of the prefabricated blocks of different sizes are staggered and combined with each other.

2. A wear-resistant ceramic composite roller skin preform butt joint structure according to claim 1, characterized in that: The size of the largest precast block is 1-5 times the size of the smallest precast block.

3. The wear-resistant ceramic composite roller skin preform butt joint structure according to claim 1 is characterized in that: The gap distance a between two prefabricated blocks is 0.1-3 times the wall thickness b of the prefabricated blocks.

4. The wear-resistant ceramic composite roller skin preform butt joint structure according to claim 1 is characterized in that: The prefabricated block is a curved structure.

Images