Stable silicone oil based magnetic rheologic liquid, and preparation method

A technology of magnetorheological fluid and silicone oil, applied in magnetic fluid, inductance/transformer/magnet manufacturing, electrical components, etc., can solve the problems of poor suspension stability, easy oxidative deterioration and agglomeration, and achieve low cost and anti-oxidation. Good, improve the effect of settlement stability
CN1959872AInactive Publication Date: 2007-05-09WUHAN UNIV OF TECH +1
1 Cites 19 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN UNIV OF TECH
Publication Date
2007-05-09
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The magnetic rheologic liquid is composed of components: chelation type surfactant / carbonyl iron hull type magnetic compound particles, and silicone oil based compound assorted carrier liquid prepared from silicone oil and additive. The additive includes thixotropic agent, antioxidant, antiwear additive, and surfactant. The method for preparing the liquid includes steps: mixing round surfactant being added to silicone oil; next, adding antioxidant, thixotropic agent, and antiwear agent, then mixing them to obtain silicone oil based compound assorted carrier liquid; adding magnetic compound particles to the carrier liquid, and after procedures of mixing, ballmilling, and separating out friction balls, then sealing the liquid inside plastic bottle; stable silicone oil based magnetic rheologic liquid is obtained after series of procedure: placing the plastic bottle in magnetic field, taking out the liquid, and mixing etc. The liquid is applicable to damper, variator for cars etc.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a magnetorheological fluid and a preparation method thereof, in particular to a stable silicone oil-based magnetorheological fluid and a preparation method thereof. technical background

[0002] Magnetorheological fluid is a suspension formed by dispersing magnetizable particles in a non-magnetic liquid (usually called base fluid). It has an important characteristic: in the presence of a magnetic field, the apparent viscosity of the magnetorheological fluid is proportional to the strength of the magnetic field, and its change can reach tens of thousands of times, and this change is fast and reversible. called the magnetorheological effect. Using this characteristic, many new devices and new instruments can be designed and manufactured, such as magnetorheological dampers, magnetorheological shock absorbers for automobiles, magnetorheological transmissions and magnetorheological brakes, magnetorheological sealing devices, magnet...

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