The development of new technologies for auto parts shows the following main trends: the deepening of the development depth; the increase in the degree of generalization and standardization of parts; the increase in the level of electronic and intelligent parts; the lightweighting of vehicles and parts has become the future development trend; Environmental protection technology has become the commanding heights of future industrial competition. In a certain period of time, China's auto parts industry still has many deficiencies, such as poor industrial foundation, irrational structure, insufficient research and development, and lack of famous brands. All of these are, in general, a commonplace problem. During the Eleventh Five-Year Plan period, the National Development and Reform Commission made comprehensive improvement of the competitiveness of the auto parts industry as its main goal to guide the industry. Now that the 12th Five-Year Plan is coming out, auto parts companies need to further improve their core competitiveness.
First, see if the trademark logo is complete. The outer packaging of the authentic product is of good quality. The handwriting on the box is clear and the overprint is bright. Packaging boxes and bags should be marked with the product name, specifications, quantity, registered trademark, factory name and address and phone number, etc. Some manufacturers also mark their own accessories. Some important components such as generators, distributors, fuel injection pumps, etc. are also equipped with instruction manuals, certificates and inspector chapters to guide users in the correct use and maintenance. When buying, you should carefully identify to prevent buying fake and shoddy products.
Second, look at the geometric dimensions for deformation. Some parts are prone to deformation due to improper manufacturing, transportation, and storage. During the inspection, you can roll the shaft parts along the glass plate to see if there is light leakage at the joint between the component and the glass plate to determine whether it is bent. Use a tablet lift to observe if it is warped. When choosing an oil seal, the end face of the oil seal with the skeleton should be perfectly round, which can be fitted to the flat glass without any flex. , It should be able to return to its original state after letting go. When choosing various types of gaskets, you should also pay attention to check the geometric size and shape.
3. See if the joint is flat. During the transportation and storage of parts, due to vibration and bumps, burrs, indentations, damage or cracks often occur at the joints, which affects the use of parts. Pay attention to inspection when purchasing.
Fourth, look for rust on the surface of the parts. The surface of qualified parts has both a certain degree of accuracy and a bright finish. The more important the parts, the higher the precision, and the stricter the rust and corrosion protection of the packaging. Should pay attention to check when purchasing, if you find that the parts have rust spots, mildew spots, or rubber parts are cracked, lose elasticity, or the surface of the journal has obvious turning tool lines, they should be replaced.
Fifth, see if the protective surface is intact. Most parts are coated at the factory. For example, piston pins and bushes are protected with paraffin; piston rings and cylinder liners are coated with rust-proof oil and wrapped with wrapping paper; valves, pistons, etc. are dipped in rust-proof oil and sealed in plastic bags. If you find that the sealing sleeve is damaged, the packaging paper is lost, or the anti-rust oil or paraffin is lost during the purchase, it should be returned.
