ステンレス鋼の鋳造, as its name implies, is the casting process of stainless steel alloys. Investment casting or lost wax casting, is the most precise casting method to manufacture stainless steel products, especially those irregular or complex structures, so stainless steel investment casting is almost equal to stainless steel precision casting.
Investment casting or lost wax casting, is the most precise casting method to manufacture stainless steel products, especially those irregular or complex structures, so stainless steel investment casting is almost equal to stainless steel precision casting. The whole casting stainless steel process contains several steps: mold making, wax model making, tree assembly, dipping and dewaxing, 注ぐ, 等.
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A design engine first makes a wax pattern using a metal injection die. The pattern will have all the details for a section or portion of the finished component but with slightly larger dimensions to account for thermal contraction.
次, the engineer creates the runner and gating system by connecting multiple patterns to form the final component. Molten metal will flow through the runner system as it fills cavities in the mold, creating a well-balanced casting. Gates are the openings between the runner and the cavity that feeds molten metal into the space.
Once the entire pattern is complete, it is dipped into a ceramic slurry and covered with sand stucco. The design engineer repeats the dipping process until the shell achieves the appropriate thickness. At this point, the dried shell’s durability is strong enough to withstand the heat from the molten metal. また, it will retain its shape during the last step.
The wax melts away under high temperatures, and trace amounts soak into the plaster or ceramic mold. The void left by the melted wax pattern will be filled with an alloy to create a precise cast stainless steel part.
Before that, note that steel is a metal alloy majorly comprising of iron and carbon together with other elements.
しかし, stainless steel is an alloy made up of a large quantity of chromium content usually not less than 10.5 % by mass.
The rest of the mass is composed of iron.
特に, chromium is responsible for corrosion resistance and therefore any increase in chromium would make the metal more resistant to corrosion.
さらに, apart from chromium, stainless steel is also made up of other ingredients like:
Among all these minor components, molybdenum is absolutely unique. It drastically enhances the corrosion resistance of the stainless steel.
These types are stainless steel 304 とステンレス鋼 316
It is therefore evident that there exist several types of stainless steel apart from the two common ones mentioned.
The difference among them is their distinct alloy composition due to the difference in chemical composition and also their varied physical properties.
したがって, the best grades for casting are:
There are several“families” of stainless steel. Each of these families has different proportions of iron, クロム, and carbon. Some have other elements, like nickel, モリブデン, マンガン, or copper. The properties of these steels vary by content, making this a versatile group of alloys.
Grades give a hint as to the family of a particular stainless steel. The most common grades are:
| 合金 | Common Usage | アプリケーション |
| 304 | Food grade steel, housings, bodies 304 is widely accepted in the food industry as the standard for cleanliness as well as corrosion resistance. | 医学 マイニング 石油化学 |
| 304L/316L | Similar to other 300 series steel, の "L" stands for low carbon, making it softer but more corrosion resistant for each grade of material. | 食べ物 & Dairy 医学 石油化学 |
| 316 | Housings, 歯車, プレート 316 is known for its superior corrosion resistance, making it ideal for many uses including marine environments. | 自動車 石油化学 食べ物 & Dairy |
| 416 | Housings, ブッシング, ハンドル, 括弧 400 series steels are high strength and very machinable. They will tend to break rather than bend under intense pressure | 自動車 Machine Tool 食べ物 & Dairy |
| 17-4 | Rods, ピン, links, arms 17-4 is the strongest of the stainless steel family and is used on parts that cannot bend.. | Military 医学 Machine Tool |
The application of stainless steel casting is very extensive, mainly used under various corrosive conditions of media, especially in applications that require resistance to environmental corrosion, demonstrating its unique advantages. Stainless steel casting technology is not only suitable for casting various types and alloys, but also produces castings with higher dimensional accuracy and surface quality than other casting methods. This technology is particularly suitable for manufacturing complex, high-temperature resistant, and difficult to machine castings, even for complex shapes that are difficult to cast using other casting methods, which can be achieved through stainless steel precision casting technology.
Stainless steel castings have a wide range of market applications, including but not limited to industrial products, machinery manufacturing, 化学装置, 造船, 等. その中で, stainless steel cast steel parts are generally used under various corrosive conditions in various media. Especially after the discovery in 1910 that the Cr content in steel exceeded 12% and had good corrosion and oxidation resistance, the application of stainless steel castings became more widespread. 加えて, stainless steel castings are widely used in fields such as power equipment, petrochemicals, and food processing to meet various complex environments and application needs.
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Stainless steel casting may have roots dating back 5,000 年, but it still has beneficial applications in modern society. Throughout the world, industries rely on cast stainless steel to produce intricate stainless steel components with smooth finishing, unique geometric shapes, 厳しい公差, including marine, 自動車, 食品加工装置, and automotive manufacturing industries.
DEZE Foundry offers superb stainless steel investment casting and machining services. We use specialized lost wax investment casting process to customize quality cast stainless steel parts quickly. If you would like to learn more about our casting services and receive a free quote on your upcoming project, contact ourstainless steel foundrytoday.
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