Effective control of high-speed rotation of the spindle bearing temperature rise is an important indicator of the spindle, the spindle temperature rise and bearing are closely related. Methods to reduce the bearing temperature rise are: (1) to reduce the dynamic friction bearing; (2) to adjust and improve the bearing cooling environment. Commonly used electric spindle lubrication in the following ways: 1. Grease lubrication Under normal circumstances, the bearing unit of time calorific value increases with temperature rise, the viscosity of the lubricant will drop. In order to avoid bearing burn, you must fully add lubricants. However, the increase of oil also increases the resistance of stirring and increases the frictional loss, which increases the resistance of the spindle. If the grease with a trace of lubrication, not only fail to achieve the purpose of low friction, but also bring out the heat of the bearing. High-speed rotation of the spindle speed, so that accelerated deterioration of grease, reducing grease life. 2. Oil mist lubrication In the current high speed grinding CNC grinding spindle lubrication oil mist lubrication, oil mist lubrication is a trace lubrication to reduce the friction loss but also reduces the bearing temperature and improve the service life of the spindle. Another advantage is that due to the electrical spindle oil mist lubrication bearing within a certain pressure, to avoid the abrasive particles into the spindle housing to cause electrical spindle damage. However, oil mist lubrication there is environmental pollution and oil control inaccurate issues. 3. Oil and gas lubrication Oil and gas lubrication has the following characteristics: (1) A very small amount of lubricating oil can be continuously and steadily supplied to the bearings; (2) There is little environmental pollution and the oil- The degree of air pollution in the measuring box is about 0.03mg / m. Pollution less than oil mist lubrication, the reason is that oil-gas lubrication oil mist lubrication less, and the lubricating oil and compressed air to the gas-liquid two-phase flow into the bearing. (3) Dust or water and cutting fluid difficult to enter the spindle bearings, compressed air to maintain positive pressure within the spindle bearings.
Material:
Plain steel, stainless steel(304, 316, 316L), aluminum, copper, brass, bronze,
etc.
Features:
Heat resisting,Corrosion resisting, Acid resisting
Applications:
Mainly used for filtering and sieving, extensively used in
petroleum, chemical industry, enviroment protection, mine, airspace,
paper-making, electronic, metallurgy etc.
Weave Type:
1. Plain Weave: also called tabby weave, linen weav or taffeta weave, is
the most basic type of weaves. In plain weave, the warp and weft are aligned so
they form a simple criss-cross pattern. Each weft thread crosses the warp
threads by going over one, then under the next, and so on. The next weft thread
goes under the warp threads that its neighbor went over, and vice versa.
2. Twill Weave: In a twill weave, each weft or filling yarn floats across the warp yarns in a progression of interlaces to the right or left, forming a distinct diagonal line. This diagonal line is also known as a wale. A float is the portion of a yarn that crosses over two or more yarns from the opposite direction.
3. Plain Dutch Weave: similar with plain weave, just the weft and warp wire have different wire diameter and different mesh size.
4. Twill Dutch Weave: similar with twill weave, just the weft and warp wire have different wire diameter and different mesh size.
5. Reversed Dutch Weave: difference from standard Dutch weave lies in the thicker warp wires and less weft wires.
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