Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Manufacturing method of ceramic bracket for magnetic suspension variable frequency centrifuge coil

The technology of a ceramic bracket and a manufacturing method is applied in the field of magnetic levitation variable frequency centrifuges, which can solve the problems of insecurity, reduced motor service life, poor anti-aging performance of coil brackets, etc., and achieves high insulation resistance and strength, and prevents aging effects.

Active Publication Date: 2015-10-28
新化县恒睿电子陶瓷科技有限公司
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the operation of the centrifuge, current continues to pass through the winding, and the rotating mechanical movement, coupled with the combined effects of dust, oil and other corrosive substances in the working environment, the coil bracket made of ordinary insulating plastic or insulating paper materials is anti-aging Poor performance, its insulation resistance is 1×10 9 Ω or less, and the heat resistance is poor, which cannot meet the requirements of long-lasting large working current environment
When the motor works for a long time, the internal temperature rises rapidly, especially the impact of the instantaneous current on the power grid caused by the short circuit of the load. If the insulation or strength of the coil support is poor, the magnetic field of the motor will be disturbed and the service life of the motor will be reduced or it will be directly burned. Increased maintenance and repair costs, resulting in unstable and unsafe centrifuges

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manufacturing method of ceramic bracket for magnetic suspension variable frequency centrifuge coil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Al2O3 90.00-95.00%, Calcium Oxide 1.00-3.00%, Niobium Pentoxide 1.00-3.00%, Barium Carbonate 2.00-4.00%, Suzhou Soil 1.00-3.00% weigh Al2O3, Calcium oxide, niobium pentoxide, calcium carbonate and Suzhou soil powder, stir evenly, and dry in a drying oven until the water content is lower than or equal to 0.03%, put the mixed powder into the ball mill Carry out ball milling. During the ball milling, the weight ratio of the powder to the ball is 1:2, and the ball milling is continued for 17-21 hours; after the ball milling, the measured particle size of the mixed powder is 2.0-4.0 μm. Among them, the ball mill used in the ball mill is a drum-type ball mill lined with alumina lining bricks. The particle size of the powder is measured by the Xiangke SK-5 particle size analyzer, and the weight of the mixed powder after ball milling is 8~ 13% white wax and 0.2-0.6% yellow wax by weight of the mixed powder, that is, the weight of the added white wax is 8-13% of the weight of th...

Embodiment 2

[0032] This embodiment provides a ceramic support for magnetic levitation frequency conversion centrifuge coils, the ceramic support is made of ceramic materials with the following components: 93.5% aluminum oxide, 1.5% calcium oxide, 1.5% niobium pentoxide, 2 % barium carbonate and 1.5% Suzhou soil.

Embodiment 3

[0034] This embodiment provides a ceramic support for magnetic levitation frequency conversion centrifuge coils, the ceramic support is made of ceramic materials with the following components: 94.5% aluminum oxide, 1.5% calcium oxide, 1% niobium pentoxide, 2 % barium carbonate and 1% Suzhou soil.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a manufacturing method of a ceramic bracket for a magnetic suspension variable frequency centrifuge coil. The method includes the steps of: 1. stirring aluminium oxide, calcium oxide, niobium pentoxide, calcium carbonate and suzhou clay powder evenly according to a predetermined proportion, and conducting drying in a drying oven to a water content of less than or equal to 0.03%; 2. putting the uniformly mixed mixed powder into a ball mill to carry out ball milling to a particle size measurement value of 2.0-4.0micrometers; 3. adding white wax accounting for 8-13% of the mixed powder weight and yellow wax accounting for 0.2-0.6% of the mixed powder weight into the ball milled mixed powder to make a wax cake; 4. using a hardware mould to process the wax cake into a ceramic bracket green body for the magnetic suspension variable frequency centrifuge coil by means of hot press molding; 5. fixing the ceramic bracket green body in a sagger with adsorption powder and sending the green body into a wax removal kilin to remove wax; and 6. loading the wax removed and ash removed ceramic bracket green body into a corundum earthen bowl tidily and sending the corundum earthen bowl into a continuous sintering kiln to conduct high temperature sintering, and finally performing natural cooling, thus obtaining the ceramic bracket for the magnetic suspension variable frequency centrifuge coil.

Description

technical field [0001] The invention relates to the technical field of magnetic levitation frequency conversion centrifuges, in particular to a method for manufacturing a ceramic bracket for magnetic levitation frequency conversion centrifuge coils. Background technique [0002] With the development of centrifugal air-conditioning technology in China, the key components and technologies of magnetic levitation frequency conversion centrifugal units have broken the pattern of long-term dependence on imports, and major breakthroughs have been made in energy efficiency and safety. Many motors in air conditioners need to install coils, especially in magnetic levitation variable frequency centrifuges, which need a high insulation, high temperature resistant, high strength support to wind these copper coils. Currently, these insulating brackets are usually made of high-temperature plastic or insulating paper materials. [0003] During the operation of the centrifuge, current conti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B35/10C04B35/622
Inventor 晏育权刘贤香刘望星何衡平胡继林胡传跃刘鑫
Owner 新化县恒睿电子陶瓷科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products