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2017年1月9日星期一

Continuous Casting Process for Stainless Steel Pipe Fittings - Wikipedia

stainless steel pump
Stainless steel pipe fittings generally use the same with the carbon steel vertical, vertical curved or curved continuous casting machine.

After pouring the molten steel into the ladle, the ladle is transferred to the top of the tundish inlet through the turntable, and the molten steel is injected into the tundish through the long nozzle. The molten steel in the tundish enters the mold through the submerged entry nozzle to be shaped and condensed and is continuously lowered. Surface solidification of the billet through the second cooling section to continue to quickly cool to billet into a solid body after the flame cutting length to complete the continuous casting process.

Stainless steel tube from the ingot into the slab process, and because of continuous casting process quality control means to improve, has now become a necessary means to improve product quality.

Stamping elbow casting are generally associated with the refining furnace, the chemical composition of molten steel and temperature have strict requirements; to prevent the secondary oxidation of molten steel, continuous casting process requires the use of non-oxidation protection casting; on the ladle, tundish, sliding Outlet and immersion nozzle and other refractory materials demanding;

Stainless steel pipe billet product quality advantage embodies in addition to the outer surface of the head and tail blanks do not have the grinding rate has reached more than 70%, in order to achieve this goal must be refined on the molten steel to achieve lower oxygen and sulfur content, precise control Molten steel temperature, to achieve non-oxidizing casting, and further reduce the inclusion content.

In order to ensure the appearance quality of continuous casting billet, choose the appropriate maintenance slag; continuous casting process due to mold vibration on the surface of the continuous casting slab to form the vibration marks to be controlled; ferritic stainless steel pipe must be used electromagnetic stirring .

 Under this condition, the vibrating process of the mold is matched with the mold flux according to the different steel grades, so that the depth of the surface of the slab is 200μm, and the surface of the seamless elbow is basically not polished. aims.

Not only can improve the finished product rate, energy saving and shorten the production cycle, but also with the furnace refining in line with the significant increase in production efficiency, but also omitted the billet process, saving a lot of energy consumption.
Keywords:Stainless steel casting, processing technology, Wikipedia

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