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Wear-resistant Shredder Blade Solutions
The shredder blades produced by Changsha Weiyan Environmental Equipment Co., Ltd. are made from alloy materials and treated with a unique metal-ceramic coating process, enhancing wear resistance and extending service life by 3 to 5 times compared to standard materials.
Technical Disclosure Document for Structural Patent Application.
Project. | Content | |
*Applicant's Name | Changsha Micro Research Environmental Equipment Co., Ltd | |
Other inventors（Multiple inventors in chronological order） | WentaoZhao WenbinZhao | |
Patent title（Tentative） | Medical waste shredder blade made of vanadium carbide-reinforced ceramic composite | |
Application type | □Invention R Utility model □Dual submission of invention and utility model | |
*Technical contact person. | Full name | ZipingZhao |
Phone | 13337880208 | |
83631302@163.com | ||
Address （for document delivery） | No. 27 Wenxuan Road, Lugu Street, Xiangjiang New District, Hunan. | |
Remarks：
1． The disclosure document is crucial for agents to understand the technology and improve case authorization rates; please fill it out carefully.
2． If you have any questions while preparing the disclosure materials, please contact the consultant for timely assistance; Weiliang Intellectual Property will provide comprehensive support and guidance.
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I. Closest prior art to this patent:
II. Technology of this Patent：
Content of the Utility Model: The purpose of this utility model is to address the existing technical deficiencies in metal surface modification technologies by providing a shredder blade made from vanadium carbide rare earth ceramic composite material. The technical solution involves a shredder blade comprising a metal substrate coated with a multi-phase ceramic crystal structure of VC–Nb-RE-Te-C. In this structure, VC represents vanadium carbide, Nb is niobium, RE denotes rare earth elements, Te indicates iron, and C is carbon. The bonding profile of the multi-phase ceramic crystal with the metal substrate features an irregular, interlocking sawtooth design. The metal substrate is a heat-treated shredder blade. The beneficial effects of the metal component made from vanadium carbide rare earth ceramic composite include significant enhancements in the hardness, strength, impact resistance, corrosion resistance, high-temperature resilience, self-lubrication, and oxidation resistance of the metal substrate surface. This results in a substantial increase in the service life of the shredder blade. Specific Implementation Example 1: A vanadium carbide rare earth ceramic composite based on a metal substrate comprises a multi-phase ceramic crystal structure of VC-Nb-RE-Te-C, where VC represents vanadium carbide, Nb is niobium, RE denotes rare earth elements, Te is iron, and C is carbon. The bonding profile with the metal substrate features an irregular interlocking sawtooth design, fully covering the metal substrate surface with a consistent thickness. The vanadium carbide rare earth ceramic composite based on a metal substrate utilizes a heat-treated shredder blade as the metal substrate. The manufacturing method for the vanadium carbide rare earth ceramic composite based on a metal substrate is as follows: The first step involves preparing the carrier melt. The carrier powder and rare earth powder are uniformly mixed and placed in a container, then heated to 600°C to 800°C. Under the activation of the rare earth elements, the carrier powder is melted. The ratio of carrier powder to rare earth powder is 96:4. The second step involves preparing the composite melt. V₂O₅ powder, NbC powder, and rare earth powder are added to the container and maintained at a temperature of 600°C to 800°C until they are uniformly suspended in the carrier melt. The ratio of V₂O₅, NbC, and rare earth powders is 75:19:6. The third step involves fabricating the vanadium carbide rare earth ceramic composite. The surface-cleaned shredded blades are fully immersed in the mixed melt within the container, maintaining a temperature of 600°C to 800°C for 4 hours. The fourth step is post-processing. The shredded blades are removed and allowed to cool naturally or subjected to relevant heat treatment, followed by surface polishing. In the fabrication method of the vanadium carbide rare earth ceramic composite based on a metal matrix, the carrier powder serves solely as the medium for producing the composite without participating in the reaction. It can consist of industrial borax, a mixture of industrial borax and other neutral salts, or other suitable materials that can act as the medium for the composite fabrication. The manufacturing container is made of a specialized heat-resistant alloy, typically cylindrical in shape, with an external heating resistance band and insulation shell, and may include an internal stirring device. The rare earth powder material is yttrium oxide (Y₂O₃) powder, but can also be scandium oxide (Sc₂O₃) powder or powders rich in other heavy rare earth oxides. The reducing powder material is an auxiliary material for reducing oxygen during the production of the vanadium carbide rare earth ceramic composite, consisting of metallic aluminum powder or other reducing agent powders. The proportions of these materials, temperature controls, and holding times are designed based on the structure and morphology of the steel stamping die materials, considering subsequent operational conditions and the desired thickness and performance parameters of the composite. Example 2: A vanadium carbide rare earth ceramic composite based on a metal matrix is a multi-phase ceramic structure with a VC-Nb-RE-Te-C composition, where VC represents vanadium carbide, Nb is niobium, RE denotes rare earth elements, Te refers to iron, and C is carbon. Its profile shape, which interlocks in a non-regular serrated manner, fully covers the surface of the metal matrix to a certain thickness. In this instance, the metal matrix is a die-cast component of an automotive engine cylinder block, referred to as a die-cast part. The method for producing the vanadium carbide rare earth ceramic composite based on a metal matrix is as follows: Step 1: Preparation of the carrier melt Mix the carrier powder material with rare earth powder uniformly, then place it in a container and heat to 600°C to 800°C. Under the activation of rare earth elements, the carrier powder material melts. The ratio of carrier powder to rare earth powder is 94:6. Step 2: Preparation of composite melt Add V₂O₅ powder, NbC powder, and rare earth powder to the container, maintaining a temperature of 600°C to 800°C until these materials are uniformly suspended in the carrier melt. The ratio of V₂O₅, NbC, and rare earth powders is 71:21:8.
Step 3: Fabrication of the vanadium carbide rare earth ceramic composite Fully immerse the die-cast component into the mixed melt, keeping the temperature between 600°C and 800°C for 2.5 hours. Step 4: Post-treatment Remove the die-cast component, allow it to cool naturally or perform relevant heat treatment, and finally conduct surface polishing. In this method, the carrier powder material serves solely as the medium for creating the vanadium carbide rare earth ceramic composite without participating in the reaction; it can be industrial borax or a mixture of borax with other neutral salts. The container is made from a special heat-resistant alloy, typically cylindrical, with an external heating resistance band and insulation, and may include a stirring device. The rare earth powder can be Y₂O₃ or Sc₂O₃, or powders rich in other heavy rare earth oxides. The reducing powder material, used to reduce oxygen during the composite production, is metallic aluminum powder or other reducing agents. The proportions, temperature controls, and holding times are designed based on the structure and morphology of the die-cast component, considering the operational conditions and desired thickness and performance of the composite. The above description serves as an additional elaboration of this utility model. Simple modifications and substitutions based on the disclosed methods fall within the scope of this utility model. |
III. Additional Technical Information for Understanding This Application
Figure Descriptions Figure 1: Front view of the vanadium carbide rare earth ceramic composite shredder blade of this utility model. Figure 2: Side view of the vanadium carbide rare earth ceramic composite shredder blade of this utility model.
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