Ke Yi magnetorheological fluid is a magnetic fluid with excellent comprehensive properties prepared by a certain process using micro nano scale iron powder as the dispersed phase in a highly stable base carrier liquid. Magnetorheological fluids exhibit good flowability as Newtonian fluids in the absence of a magnetic field. Applying a magnetic field can transform them into a low flowability semi-solid state in milliseconds, exhibiting high viscosity and low flowability characteristics of Bingham fluids, thus exhibiting controllable shear yield strength. When the magnetic field is removed, the magnetorheological fluid can quickly return to Newtonian fluid, which has the characteristics of continuity, reversibility, rapidity, and ease of control. This product can be used in damping and shock absorption, transmission devices, braking devices, etc., especially suitable for manufacturing shock absorbers for household cars.
Low zero field high yield Under zero magnetic field conditions, it has very low viscosity and high yield strength under the action of an external magnetic field, which is beneficial for structural design to obtain a large space for adjusting force values. | Wider temperature range Can be used normally for a long time within the range of -40 ℃~130 ℃. | Good anti settlement performance After a long period of standing, the settlement rate is low and there will be no hard settlement. |
Good redispersibility After settling due to prolonged standing, it is very easy to re disperse evenly. | Good viscosity resistance No IUT (thickening) phenomenon occurs after prolonged use. | Good aging resistance Long term use is not prone to aging due to factors such as oxidation, temperature, light, mechanical force, etc. |
Good liquidity After the external magnetic field is removed, it has excellent fluidity. | Good sealing compatibility Using special materials and formulas, with good compatibility with sealing materials, is beneficial for ensuring sealing. | Good wear and tear resistance Long term use has minimal wear on the contact surface, which is beneficial for improving the durability of the actuator. |
Performance parameters
Performance parameters | |
Appearance | Brown black flowing liquid |
Zero field viscosity, 40 ℃, mPa·s | 80±20 |
Static stability (30 days),% | ≤12% |
Density, g/cm3 | 2.7±0.1 |
Solid content,% | 78-80% |
Flash point, ℃ | >150 |
Operating temperature, ℃ | -40-130 |
MRF performance
Performance comparison