The Dongguan Environmental Protection Bureau reported that in the past two months, the local government has received more than 2,000 vehicles. What is a Piston Ring?
Piston ring is used to insert the piston groove inside the metal ring, piston ring is divided into two types: compression ring and oil ring. The compression ring can be used to seal the combustible mixture gas in the combustion chamber; The oil ring is used to scrape excess oil from the cylinder.
The piston ring is a kind of metal elastic ring with large outward expansion deformation, which is assembled in the profile and its corresponding annular groove. Reciprocating and rotating piston rings rely on the pressure difference of gas or liquid to form a seal between the outer circle of the ring and the cylinder and one side of the ring and the ring groove.
Commonly used car engines have two kinds of diesel and gasoline engines, because of their different fuel performance, the use of piston rings are not the same.
Early piston rings were formed by casting, but with the progress of technology, high-power steel piston rings were born, and with the continuous improvement of engine functions and environmental requirements, a variety of advanced surface treatment applications, such as thermal spraying, electroplating, chromium plating, gas nitriding, physical deposition, surface coating, zinc-manganese phosphating treatment, etc., the function of the piston ring is greatly improved.
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Since Dongguan promulgated a new policy of actively eliminating subsidies for yellow-label vehicles, in the past two months, Dongguan has taken the initiative to scrape out more and more owners of yellow-label vehicles. The Dongguan Environmental Protection Bureau reported that in the past two months, the local government has received more than 2,000 vehicles.
At the Dongguan Recycling Treatment Point in Wentang, Dongcheng, Dongguan, the vehicles waiting to be processed piled up two or three stories high, and the workers were busy with tools to dismantle a scrapped vehicle. In the other office, several yellow-label car owners are registering materials to apply for the elimination subsidy.
According to the data provided by the Dongguan Environmental Protection Bureau, as of December 19, 2014, Dongguan had eliminated 42,000 yellow-label vehicles and old vehicles. Since the implementation of the new subsidy policy, the owner of the yellow label car has received enthusiastic response. From October 22 to December 22, only 2058 vehicles were scrapped.
According to the Dongguan Environmental Protection Bureau, in order to meet the demand for dismantling, the dismantling enterprises will implement the measures of special personnel, increase the number of personnel, increase the venue, and open the green channel of the yellow standard car to promote the yellow label car as soon as possible. In addition, according to the relevant person in charge of the Office of the Leading Group for the Retirement of Old Vehicles, the relevant departments will also work closely together to shorten the time for reviewing the early phase-out subsidies, and strive to submit complete information from the owner of the yellow-label vehicle to receive the subsidy. Completed within 22 working days.
Piston ring is the core component inside the fuel engine, it and cylinder, piston, cylinder wall together to complete the seal of fuel gas.