Piston ring identification method

The working surface of the piston ring shall not be nicked, scratched or peeled off, and the outer cylindrical surface and the upper and lower end surfaces shall be-The fixed finish and curvature deviation should not be greater than 0. 02-0. 04mm, the standard subsidence of the ring in the groove shall not exceed 0. 15-0. 25mm, the elastic force and clearance of the piston ring conform to the regulations. In addition, the leakage degree of the piston ring should also be checked, I . e. the piston ring should be placed flat in the cylinder, a small light bulb should be placed under the piston ring, and a light shielding plate should be placed on it, then observe the light leakage gap between the piston ring and the cylinder wall, thus knowing whether the contact between the piston ring and the cylinder wall is good. Under normal circumstances, the light leakage seam of piston ring measured with thickness gauge should not exceed 0. 03mm. The length of the continuous light leakage joint shall not be greater than 1/3 of the cylinder diameter, the length of the light leakage joint at several places shall not be greater than 1/3 of the cylinder diameter, and the total length of the light leakage joint shall not exceed 1/2 of the cylinder diameter, otherwise, it shall be replaced. Piston ring marking GB/T 1149. 1- 94 Provisions: all piston rings requiring installation direction shall be marked on the upper side, I . e. near the side of the combustion chamber. The ring marked on the upper side includes: conical ring, inner chamfer, outer cutting table ring, nose ring, wedge ring and oil ring requiring installation direction. The upper side of the ring is marked. Guangzhou Huateng Auto Parts Co. , Ltd (Former South China piston ring Co. , Ltd) It is a leading enterprise that uses modern technology to produce piston rings such as automobiles, motorcycles and general machinery. We have been committed to the research and development of new technologies and materials for piston rings, and lead the use of new wear-resistant materials 'DT '(National patent), Alloy inlay technology (National patent). It combines ceramic infiltration technology with high permeability and high thermal stability, and has the advantages of high vibration damping and low friction coefficient. Since then, the product has become more durable and environmentally friendly.

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