Classification advantages and disadvantages of Dongguan precision casting process

Classification and advantages and disadvantages of common precision casting processes
Lost foam casting (also known as solid casting): It is to combine paraffin wax or foam models similar in size and shape to the castings to form clusters. After brushing and drying refractory coatings, they are buried in dry quartz sand for vibration modeling. It is a new type of casting method in which the model is vaporized by pouring under pressure, the liquid metal occupies the position of the model, and the casting is formed after solidification and cooling.
(1) Process flow: wax injection → oar feeding → drying → dewaxing → pouring → falling sand → cleaning → quality inspection
(2) Technical features:
①The casting has high precision and no sand core, which reduces the processing time;
②No parting surface, flexible design and high degree of freedom;
③Clean production, no pollution;
④Reduce investment and production costs.
(3) Application:
It is suitable for the production of precision castings of various sizes with complex structures, unlimited types of alloys and unlimited production batches. )$X$D$3XYHF`%PHCW6}J0TP.png

The materials are 304 stainless steel, 303 stainless steel, 316 stainless steel, 316L stainless steel, 17-4 stainless steel, 202 stainless steel, 420#, 430#, A3 carbon steel, 20 carbon steel, 45 carbon steel, 4140, 20Crmo, 40Crmo, 5Cr13, 2Cr13, D2, 1018#, heat-resistant steel, brass, etc...