The essence of stainless steel precision casting is a process method that applies significant mechanical pressure to the liquid metal quantitatively poured into the mold cavity, causing it to form, crystallize and solidify, and obtain the blank of the parts. This process method was also known as "liquid metal forging", "liquid metal stamping", "liquid metal forging", "punch pressure crystallization", etc.
There are various forms of precision casting technology for stainless steel, which can be divided into plunger pressurization, direct punch extrusion, indirect punch extrusion (also divided into upper extrusion method and lower extrusion method) according to the characteristics of liquid metal filling and extrusion force during forming. Plunger squeeze casting is mainly suitable for thick walled castings and ingots with simple shapes; The direct extrusion method is suitable for castings with thin walls and complex shapes; Indirect extrusion method is suitable for castings with large production and complex shapes.
