Supersonic motor thermosetting resin base friction material and friction layer manufacturing method and auxiliary tool

A technology of friction materials and ultrasonic motors, applied in the field of ultrasonic motors, can solve problems such as low surface tension and difficult stator friction layers, and achieve the effects of suitable hardness, excellent output characteristics, and superior wear resistance

Inactive Publication Date: 2006-10-25
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low surface tension of thermoplastics and the cogging of

Method used

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  • Supersonic motor thermosetting resin base friction material and friction layer manufacturing method and auxiliary tool
  • Supersonic motor thermosetting resin base friction material and friction layer manufacturing method and auxiliary tool
  • Supersonic motor thermosetting resin base friction material and friction layer manufacturing method and auxiliary tool

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Embodiment 1: A thermosetting resin-based friction material for an ultrasonic motor, the composition and mass percentage: epoxy resin 47%, curing agent 33%, nano wear-resistant powder 15%, carbon fiber 10%, and copper powder 5%.

[0032] The method for manufacturing a friction layer of an ultrasonic motor using the above-mentioned materials includes the following steps:

[0033] 1. At room temperature, mix the epoxy resin-based ultrasonic motor friction material according to the above-mentioned ingredients and mass ratio, and stir evenly;

[0034] 2. Directly glue the prepared material on the specially designed rotor or stator test piece that has not been formed;

[0035] 3. The rotor or stator coated with friction material is vibrated and leveled by an ultrasonic vibrator at a temperature of 30℃~45℃, and the gas in the material is expelled;

[0036] 4. Put the test piece in the oven and roast at 50~90℃ for 30~180 minutes;

[0037] 5. Machining the roasted test piece.

[00...

Example Embodiment

[0041] Embodiment 2: A thermosetting resin-based friction material for ultrasonic motors, its composition and mass percentage: epoxy resin 38.2%, curing agent 26.8%, nano wear-resistant powder 12.5%, carbon fiber 12.5%, and copper powder 10%. In this embodiment, copper powder is added to improve the heat dissipation of the friction layer. The manufacturing method of the friction layer of the ultrasonic motor is similar to that in the first embodiment.

Example Embodiment

[0042] Specific embodiment 3: A thermosetting resin-based friction material for ultrasonic motors, its composition and mass percentage: epoxy resin 38.2%, curing agent 26.8%, nano wear-resistant powder 5%, carbon fiber 15%, copper oxide 5% and poly Tetrafluoroethylene 5%, copper powder 5%. In this embodiment, the addition of polytetrafluoroethylene in the first embodiment reduces the hardness of the material and reduces the wear on the mating surface. The manufacturing method of the friction layer of the ultrasonic motor is similar to that in the first embodiment.

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Abstract

The invention relates to an ultrasound dynamo thermosetting resin radical friction material and friction layer making method and the assistant tools. The material is made up of 35-80% thermosetting resin, 0-34% curing agent, 5-15% nanometer antifriction powder, 5-15% carbon fiber, 0-10% copper oxide, 0-5% polytetrafluoroethylene, 5-10% copper powder, 2-10% graphite, 0-5% nitrile butadiene rubber, and 0-10% mineral substance. The invention has excellent wear resistance, suitable rigidity, good output characteristic, etc. And the method is low cost and simple. The assistant tool is made up of moving bar and base.

Description

1. Technical field: [0001] The invention relates to a thermosetting resin-based friction material for an ultrasonic motor, a friction layer manufacturing method and an auxiliary tool, and belongs to the technical field of ultrasonic motors. 2. Background technology: [0002] Ultrasonic Motor (Utrasonic Motor, USM) is a new type of micro-motor developed at the end of the 20th century. It uses the inverse piezoelectric effect of the piezoelectric material to excite the ultrasonic vibration of the elastic body to realize the conversion of electrical energy to mechanical energy, and uses the friction between the vibrator and the mover to transmit the motion and force. Since the ultrasonic motor transmits energy through friction, the quality of the friction material largely determines the service life and performance of the ultrasonic motor. [0003] Domestic research on ultrasonic motors and their friction materials started relatively late, and there are not many research units...

Claims

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Application Information

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IPC IPC(8): C08J5/14
Inventor 姚志远丁庆军赵淳生
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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