Ultrasonic transducer matching layer material and preparation method thereof
AssigneeShantou Institute of Ultrasonic Instruments Co., Ltd.
InventorsJinhao Lin, Yanxiong Yu, Jiacai Lin, Jianwei Cai, Zewen Lin
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Abstract
Disclosed are an ultrasonic transducer matching layer material and a preparation method thereof. The ultrasonic transducer matching layer material includes the following components in parts by weight: 15~34 parts of phenolic resin, 50~92 parts of alumina, 3~17 parts of graphite, 1~16 parts of carbon fiber, 1.5~5 parts of curing agent and 0.5~5 parts of lubricant. The ultrasonic transducer matching layer material is prepared by internal mixing and thermoforming the powder of raw materials.
Claims5
A method for preparing matching layer materials of ultrasonic transducers, comprising following steps:
- S01, taking the following raw materials in parts by weight:
- 15~34 parts of phenolic resin, 50~92 parts of alumina, 3~17 parts of graphite, 1~16 parts of carbon fiber, 1.5~5 parts of curing agent and 0.5~5 parts of lubricant;
- S02, crushing the phenolic resin in the raw materials into powder, and then stirring and mixing evenly with other powdery raw materials;
- S03, putting the uniformly mixed powdery raw materials into an internal mixer for mixing;
- S04, cooling the powdery raw material after internal mixing, then placing the powdery raw material in a mold for thermoforming in a flat vulcanizing machine, and then obtaining a sheet material;
- and
- S05, grinding the sheet to a preset thickness to obtain a matching layer for ultrasonic transducers;
- wherein needle-like alumina powder with a particle size of 3~4 μm for the alumina is used in step S01.
Dependencies are inferred from the claim text.