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Introduction to the Principle of Linear Motor Module Actuator for Float Glass Applications

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Floatation is the method of producing flat glass by floating the glass solution on the surface of molten metal.

Its use is divided into two categories depending on whether it is colored or not.

Transparent float glass - for architecture, furniture, decoration, vehicles, mirror plates, optical instruments.

Tinted float glass - for architecture, vehicles, furniture and decoration.

Float glass is widely used: float silver mirror, car windshield grade, float glass all kinds of deep processing grade, float glass scanner grade, float glass coating grade, float glass mirror making grade. Among them, ultra-white float glass has a wide range of uses and broad market prospects, mainly in the field of high-grade architecture, high-grade glass processing and solar photovoltaic curtain wall, as well as high-grade glass furniture, decorative glass, imitation crystal products, lamps and lanterns glass, precision electronics industry, special buildings, etc.

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The forming process of float glass production is done in a tin bath with protective gases (N 2 and H 2). The molten glass flows continuously from the pool kiln and floats on the surface of the relatively dense tin liquid, and under the action of gravity and surface tension, the glass liquid spreads out on the surface of the tin liquid, flattens out, forms a flat top and bottom surface, hardens, and is led onto the transition roller table after cooling. The rollers of the roller table rotate and pull the glass out of the tin bath into the annealing kiln, and after annealing and cutting, the float glass product is obtained.

Linear motor module actuator is a device that directly converts electrical energy into mechanical energy for linear motion. When the three-phase winding of the linear motor actuator is fed with current, a "traveling wave magnetic field" is generated, and the conductor in the "traveling wave magnetic field" induces current by cutting magnetic lines, and the current and the magnetic field interact to produce electromagnetic force. In the tin bath, this electromagnetic force pushes the tin liquid to move, and by adjusting the motor parameters, the direction and speed of the tin liquid flow can be easily controlled.

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The linear motor module actuator can cause heat transfer. The linear motor actuator is installed at the head of the tin bath, and a movable guide plate is used to channel the high-temperature tin liquid into the outside of the graphite stall wall, which flows downward in the direction of the glass movement and returns to the middle of the tin bath at the end of the stall wall, and then flows back in the opposite direction toward the root of the plate, which continuously absorbs heat during the return flow and is again guided to the side by the linear motor at the head, thus realizing the function of heat transfer.

The use of linear motor actuator in the appropriate position in the polishing area can improve the denaturation angle, according to the tin bath tonnage, thinning process, glass grade and other factors to choose different models of linear motor and operating parameters, practice has proved that under the same conditions, the use of linear motor actuator on average can make the denaturation angle increased by 3-7 degrees.

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Linear motor actuator principle of action is to produce controlled lateral tin flow in the polishing area, this flow on the glass surface to produce a "light caress" effect, the surface of the uneven micro-zone to disappear, and make the polishing area temperature uniform, their own polishing role to play.

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The role of linear motor module actuator is mainly summarized as follows

1. improve the surface quality of thin glass, improve the thickness difference.

2. Stabilize the weight of thick glass molding.

3. Stabilize the glass belt to prevent the edge pulling machine from coming off the edge.

4. Transferring electric heating heat and equalizing temperature.

5. Reduce the lateral temperature difference, which is favorable for good annealing.

6. Prevent tin liquid from overflowing at the exit.

8. Remove tin ash. 

For more detailed product information, please email us at amanda@KGG-robot.com or call us: +86 152 2157 8410.


Post time: Sep-30-2022