Gear powder metallurgy sintering device
By setting up a bracket, a disc-shaped rack and a shape memory alloy bar in the powder metallurgy sintering device, the automatic flip of the gear is achieved, which solves the temperature difference caused by position shading during powder metallurgy sintering and improves the sintering quality.
CN119755987AActive Publication Date: 2025-04-04YANCHENG NETUREN
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Patent Information
- Application Number
- CN202510142731.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2045-02-10
AI Technical Summary
Technical Problem
During powder metallurgy sintering, the gears are subjected to temperature differences due to positional obstruction, which affects the sintering quality, and the decompositions of lubricants and forming agents cannot be discharged.
Method used
A gear powder metallurgy sintering device is designed. By setting up two sets of brackets and disk-shaped racks, the center of mass position of the counterweight is changed by using the shape memory alloy bars to automatically flip the gear during the sintering process, ensuring that both sides are completely empty.
Benefits of technology
By automatic flip, local temperature difference is avoided, sintering quality is improved, and decompositions of lubricant and forming agents can be discharged.
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Abstract
The invention discloses a gear powder metallurgy sintering device, and relates to the technical field of powder metallurgy, the gear powder metallurgy sintering device comprises a base, the base is rotatably connected with two sets of supports, the tops of the two sets of supports are fixedly provided with disc-shaped frames used for bearing sintered gears, and the disc-shaped frames are provided with positioning rods used for positioning the circumferences of the gears; the gear powder metallurgy sintering device comprises two sets of supports, the bottoms of the two sets of supports are further connected with a first balancing weight and a second balancing weight respectively, a cavity is formed in the first balancing weight, two sets of shape memory alloy strips are arranged in the first balancing weight, and each set of shape memory alloy strips comprises a plurality of shape memory alloy strips. A shape memory alloy strip is arranged in the first balancing weight and can change the position of the mass center of the first balancing weight along with the temperature change, so that the sintered gear is automatically turned over in the sintering process, the two surfaces of the gear are sintered in a completely vacant state, and the temperature difference caused by local shielding is avoided; the sintering quality is influenced.
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