The main sources are mechanical impurities that remain in the hydraulic system after cleaning, such as rust, cast sand, welding slag, iron filings, paint and cotton yarn, etc. External impurities entering the hydraulic system, such as through the oil filler entrance and dust entering at the scraper seal. Impurities generated during the working process, such as debris formed by the hydraulic action of the seal, metal powder generated by relative wear and movement, colloid, asphaltene, carbon residue, etc. Due to oxidative deterioration of the oil.
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With the guidance of the patrol boat “Sea Patrol 051â€, Tianjin Port has successfully ushered in the “Hongtu†round of the largest bulk-distribution ship that the port has entered so far.
Despite the rain and fog that day, the giant "aircraft" wheel of this giant "aircraft carrier" went into Hong Kong after more than two hours of hard work. According to reports, the ship has a length of 312 meters, a width of 50 meters, a draught of 12.4 meters, a load of 211,482 tons, and is fully loaded with iron ore. It is the largest tonnage scattered ship that Tianjin Port has entered so far. In order to ensure the safe entry of the ship, the Tianjin Maritime Safety Administration Center timely notified the dredgers on the navigation channel, and escaping from the navigation channel to avoid the transportation. The traffic control center reasonably controlled the ship spacing so that the distance between the ship and the front and rear ships was always more than 2 nautical miles. And provide them with navigation and safety information in a timely manner. From 9:00 am to apply for entry into the port, to 11:15 on the same day, the round with the help of four tugboats, successfully berthed on the berth.
Giant "aircraft carrier" first flight Tianjin Port