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密封流槽球化处理工艺(简称密流球化处理),是70年代发展起来的一种新的球化处理工艺.1974年一机部沈阳铸造研究所与第二汽车厂,在工频电炉熔化的铁水条件下,开始进行此工艺试验,先后设计了几十种密流槽结构,经反复试验,密流槽结构已基本定型,并在工频炉上试生产一段时间,1998年底,在北京国营东郊农场汽车配件厂,开始进行冲天炉铁水条件下试验,经过一年的努力于1979年11月正式投入试生产,效果良好.
Sealed ball slot ball processing technology (referred to as dense ball processing), is the 70’s developed a new ball processing technology. In 1974 a machine Shenyang Institute of Foundry and the second automobile plant in the power frequency electric furnace Melting molten iron conditions, began this process test, has designed dozens of dense slot structure, after repeated tests, dense slot structure has been basically stereotypes, and trial production in the frequency furnace for a period of time, the end of 1998, at the Beijing State-owned Farm Outskirts Farm Auto Parts Factory, started the test under the conditions of hot metal cupola, after a year of hard work in November 1979 formally put into trial production, the effect is good.