what conditions can precision casting of stainless steel give full play to its advantages

    1.The size of the casting cannot be too large: investment casting is mostsuitable for casting medium and small castings with a few shells to more thanten kilograms. In recent years, although the research and production oflarge-scale precision castings have made great progress, after all, there is alimit, and the size and weight can not be almost unlimited like sand casting.

    2.The process is complicated: There are many investment casting procedures, theprocess is complicated, the production cycle is long, there are many factorsaffecting the quality of the bag ring castings, and the requirements for thematerial and process are relatively strict in production.

    3.Slow cooling rate of the casting: The solidification and cooling rate of theinvestment casting is slow, and the crystal structure is coarse. Except forspecial products such as directional solidified columnar crystals and singlecrystal mussels, the mechanical properties of general alloy castings are lowerthan those of the same material. In addition, the phosphorus steel prayerpieces are also prone to surface decarburization.

    It should be pointed out that any process method can best exert its advantagesonly under certain conditions, as is investment casting. Here, meeting therequirements on product quality and performance is of paramount importance. Inaddition, factors such as consumption of materials and energy, productioncosts, prices, service life and reliability cannot be ignored. Investmentcasting is the most complex of all blank forming methods, and the cost ofcastings is also high. However, if the product is selected properly, the partdesign is reasonable, and the high casting cost is compensated by reducingcutting, assembly and saving metal materials. Then investment casting has goodeconomy. Especially for those products with complex shapes, precise, highmelting point alloys that are difficult to be formed, the technical andeconomic advantages of investment casting are undoubtedly unmatched by otherprocesses.

    http://www.xysteelpipe.com/info/what-conditions-can-precision-casting-of-stainless-steel-give-full-play-to-its-advantages-1604-1.htm

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