Sol precision castings of origin

   Origin of sol precision casting: Casting is the development of the ancient wax casting based on the up. As ancient civilizations, China is one of the countries using this technology earlier, far away in a few centuries BC, working people in ancient China on the creation of this lost wax casting technique for casting with a variety of fine patterns and text tripods and utensils and other products, such as the Spring and Autumn Period tomb statue plate and so on. Tomb statue base plate into a plurality of intertwined dragons, they are connected end to end, staggered up and down to form a multi-layered hollow middle moire-like pattern, the pattern is difficult to manufacture with ordinary casting out, and by the lost wax casting method process, can not use paraffin strength, easy characteristic carved, with ordinary tools can be carved out of the tomb to get the same wax statue plate material handicraft, then additional gating system, paint, dewaxing, casting, you can get beautiful tomb respect dish.
(1), the organization and graphite gray cast iron mechanical properties and the matrix form related. Gray cast iron in the flake graphite matrix serious split in graphite could easily lead to stress concentration at sharp corners, so that the tensile strength of gray iron castings, ductility and toughness far lower than steel, but considerable compressive strength and steel, are also commonly used Mechanical properties of cast iron in the worst cast iron. Meanwhile, the matrix structure but also on the gray cast iron mechanical properties must influence the ferrite matrix of gray cast iron graphite flakes thick, strength and hardness minimum, so the application is less; pearlite matrix of gray cast iron graphite sheet fine, a higher strength and hardness, is mainly used to manufacture castings more important; a ferrite pearlite gray iron matrix graphite sheet thicker than the pearlite gray iron large performance than pearlite gray cast iron. Therefore, many in the industry are using gray cast iron pearlite matrix.
(2) Experimental study of the large cross section (thickness greater than 120mm) Ductile iron metallurgical factors and the corresponding measures to the production process. With the right amount of ytirium composite Nodulizer, forced cooling, solidification, delayed breeding, if necessary, add small amount of antimony, bismuth and so prevents the central portion of graphite ductile iron distortion and osteoporosis and other organizations, have been successfully fabricated 38 tons of large and complex structure, 17.5 tons heavy diesel engine body section is 805mm ductile iron rolls and the like.
  Horizontal continuous casting ductile iron pipe and ductile iron profiles. Determination of the proportion of rare earth magnesium ductile iron, thermal, electromagnetic and other physical properties of graphite and studied the influence of the matrix organization of ductile iron binding properties of metallurgical criteria. Systematically measured ferrite ductile at room temperature, low temperature, static and dynamic conditions of various properties. In addition, we study the stress-strain properties of rare earth magnesium ductile iron, small energy repeated impact resistance and fracture toughness, and began to be used to guide production. Ductile iron gear combined with the application, but also systematically studied the bending fatigue strength and contact fatigue strength ductile cast iron, ductile iron gears and pitting, spalling mechanism and so on.
Name: Precision Casting Cabinet parts
Type: force structure
Model: 40Cr steel
Brand: Yong Sheng Precision Casting
Customization: can be formulated with customer demand
Item Number: YSMP
Description: Hardware Tools Casting
Casting process: investment casting
Material: carbon steel casting, carbon steel casting

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