Gears with broken teeth may be caused by gear overload and material defects. In the vibration measurement, the state of the broken tooth can be clearly observed according to the time domain signal, and the signal amplitude rapidly reaches a peak when the broken tooth is in meshing contact. Pitting failures are simulated on worn gears. Pitting is a major form of tooth surface fatigue. This is caused by the alternating load acting when the gears mesh. In this state of operation for a long period of time, cracks or other defects may be caused in the middle and the lower portion of the tooth surface, and at the end, abrasive grains are generated and fall off to form pitting corrosion. Radial runout is generally caused by inaccurate or incorrect gear machining methods. In the vibration measurement, the radial runout shows an increase in the sideband amplitude of the meshing frequency. The integrated lead error is generally caused by incorrect or erroneous methods of gearing during machining and assembly. In this case, the gear is not mounted perpendicular to the shaft, for example, because the gear bore is tilted or the key is not properly inserted. In vibration measurement, the integrated lead error can be expressed in the amplitude increase of the meshing frequency and the higher harmonics and the sideband of the meshing frequency. Limited lubrication means that the flow rate of the oil supply is much lower than normal. Changes in fuel supply flow rate affect temperature, oil film thickness, and ultimately increase friction and tooth surface failure probability.
Hot Chamber Die Casting
Hot chamber die casting is usually dominated by die casting of low-melting-point alloys, and the most important representative is zinc alloy Die Casting Products. And it mainly produces small die castings. If it is medium and large die castings, it is usually processed by Cold Chamber Die Casting. Hot chamber die casting is that when the molten metal filled into the mold cavity always flows in a closed channel, oxide inclusions are not easily involved, and the quality of the die casting is relatively guaranteed. Compared with cold chamber die casting, it has the characteristics of lower material loss and higher productivity.
SCZY has hot chamber die casting equipment as well as cold chamber die casting equipment. Hot chamber die casting is mainly used to produce zinc alloy products, and some small other alloy processing. Cold chamber die casting is used to process aluminum alloy die castings and other medium and large die castings. We separate and independently manage hot chamber die casting and cold chamber die casting, so that the utilization and service life of the equipment can be fully utilized, and product quality and production delivery can be better managed.
Hot Chamber Die Casting, Die Casting Machining, Zinc Die Casting Products, Die Casting Zinc, Pressure Casting, Die Casting
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