未來若干年是中國工業化、城市化、市場化和國際化步伐加快的戰略發展機遇期，也是中國全面建設小康社會進程的關鍵時期。隨著社會主義市場經濟體制改革的進一步深化，中國的活塞環市場將走向全面開放。現代柴油機在提高其性能方面，領域更為廣闊—增加功率輸出、降低燃耗、減少熱損失及減少環境污染。為此，許多柴油機部件制造商也被迫開始改進其生產的部件，以提高柴油機的整體性能。活塞環制造商也不例外，他們采用新材料，改進舊的制造工藝。

2012年對中國本土活塞環廠家來說，是繼2008年以來又一個較差的年景。由于商用車裝機總量的下降、后市場經銷商和客戶的觀望態度，總體市場持續走低，絕大部分企業銷售下降、利潤下降。乘用車市場裝機雖未大幅下降，但由于日系受損、德系上揚、自主品牌乘用車銷量下降和受到外資品牌活塞環廠家的擠壓，本土活塞環企業并未能順利分羹。在國內受困、同室操戈的同時，出口訂單也越來越少，廣交會、法蘭克福汽配展、拉斯汽配展等展會更是門庭冷落。本土活塞環企業無任何利好消息，業內在郁悶、期待和觀望中度過了慘淡的2012年。

國內活塞環企業在技術研發方面仍與國外仍存在一定差距，在材料和表面處理方面，國內企業基本上沒有創新能力；在產品臺架驗證方面，國內企業剛剛起步；國內企業缺乏產品設計經驗，近幾年才開始積累各種數據；國內工藝水平受設備影響較大，復雜產品很難保證生產能力。國內活塞環新技術還處于探索階段，雖然各種技術本身已經成熟，但運用到活塞環上還需要做大量研究、試驗。各種新技術各有利弊，關鍵要解決質量問題。國內活塞環企業基本依靠引進國外技術來提高自身的技術水平。

近年來，活塞環結構變化不大，研究人員主要在材料和工藝方面進行探索。如活塞環表面涂層工藝，雖然化學鍍鉻方法一直處于主導地位，但各種物理噴涂新技術也逐步得到應用。此外，活塞環行業還借鑒相關行業技術提高工藝水平，如摩擦面處理技術等。活塞環技術有兩種發展趨勢：一是鋼環。當前，汽油機的第一道環已經完全采用鋼質材料，柴油機使用鋼環的比例也很高。二是活塞環高度變小。活塞環高度變小后，活塞環與缸套之間的密封性加強，減少機油進入燃燒室的機率，這樣既可以降低排放污染。

Piston ring in China enterprise development with unprecedented opportunities

The next several years is China the acceleration of industrialization, urbanization, marketization and internationalization of strategic development opportunity, is also a crucial period for the process of building a well-off society in an all-round way. With the further deepening of the socialist market economic system reform, China will be fully opened to the piston ring market. Modern diesel engine to improve its performance, wider field, increasing the power output, reduce fuel consumption, reduce heat loss and reduce environmental pollution. For this reason, many of the diesel engine parts manufacturers are forced to start to improve its production parts, in order to improve the overall performance of diesel engine. Piston ring manufacturer is not exceptional also, they use new material, improve the old manufacturing process.

In 2012 for China local piston ring manufacturer, is the poor since 2008 and a year. Due to the decline in commercial vehicle capacity, market dealers and customers wait-and-see attitude, after the overall market decline, the vast majority of the company sales decline, falling profits. Passenger car market capacity, though not fell sharply, but the day is damaged, ashkenazi rose, the independent brand passenger car sales decline and squeezed by foreign brand piston ring manufacturer, local piston ring enterprises failed to smooth points. Trapped at home,... at the same time, export orders are less and less, the Canton fair, the Frankfurt auto show, lars auto exhibition is the staffer, etc. Local piston ring enterprises do not have any good news, the industry spent in depressed, looking forward to and see a dismal 2012.

Domestic foreign enterprises in technology research and development is still with the piston ring is still a certain gap, in terms of material and surface treatment, domestic enterprises are basically no innovation ability; In product validation test bench, the domestic enterprises has just started; Domestic enterprises lack experience in product design, in recent years to accumulate all kinds of data; Domestic technology level are greatly influenced by equipment, complex products is difficult to ensure the production capacity. Domestic new technology of piston ring is still in the exploratory stage, though various mature technology itself, but also applied to piston ring need to do a lot of research and experiment. A variety of advantages and disadvantages of each new technology the key to solve the quality problem. Domestic piston ring basic enterprise depends on the introduction of foreign technology to improve their technical level.

In recent years, the piston ring structure change is not big, the researchers mainly explore in terms of material and process. Such as piston ring surface coating process, although the chemical plating chromium method has been in a dominant position, but various physical coating applied new technology is also gradually. In addition, the piston ring industry related industry technology to raise the level of technology, such as friction surface treatment technology, etc. There are two kinds of piston ring technology trends: one is the steel ring. At present, the first ring of gasoline engine is completely adopts steel material, the proportion of diesel engine using steel ring is also high. Second, the piston ring height smaller. Piston ring height decreases after sealing strengthen between piston ring and cylinder liner, reduce the probability of the oil into the combustion chamber, both to reduce exhaust emissions.