Semi-Solid Die Casting

Based on the theory of stir cast invented by Mr. D.B. Spencer and M.C.Flemings, the semi-solid die casting technic has been further developed and applied over 30 years world wide. The main principle of this technic is to perform a strong stir during the metal phase change from liquid to solid, thus break the cylindrical and dendritic crystal to achieve much smaller grain size. While this phase still maintains certain flow property, the die casting could be performed to the metal.

The Advantages Of Semi-solid Die Casting

The advantage of semi-solid die casting is contributed from the very nice microstructure product it resulted in. As the rough big crystal was removed, leaving small, even, dense structure metal, the final products possess a number of the fine properties, and the casting process is more controllable as well.

Semi-Solid Forming Principle

The unique rheological and churning properties of non-dendritic semi-solid metals (SSM) are used to control the quality of castings. The three stages of liquid, solid, and semi-solid metals exhibit distinct physical properties, and these properties have led to a variety of methods of solidification, plasticity, and semi-solid metal forming. Semi-solid metals (alloys) are internally characterized by the coexistence of mixed solid-liquid phases and the presence of metallic liquids at grain boundaries, which vary in the state depending on the solid phase fraction. It can be seen that at high solid phase fraction, the liquid phase component is limited to some of the grain boundaries; at low solid phase fraction, the solid phase particles are free in the liquid phase component.

Advantages of Semi solid Die Casting

Higher viscosity than liquid metal, easier to control: less gas entrained in the mold, less oxidation, improved processability, less mold bonding, higher speed part forming, improved surface finish, easy automation, and formation of new processing processes.

Lower flow stress than solid metal: semi-solid slurry has rheological and thixotropic properties, very small deformation resistance, can form parts at higher speeds and can perform complex part forming, shorten processing cycles, improve material utilization, contribute to energy and material savings, and allow high-speed forming of continuous shapes (such as extrusion) and low processing costs.

Wide range of applications: all alloys with the solid-liquid two-phase area can achieve semi-solid processing, can be applied to a variety of processing processes, such as casting, rolling, extrusion and forging, etc., and can be used for material compounding and forming.

Rayforce Manufacture is a privatefoundry manufacturer, we provide metal casting china, vacuum die casting and etc. Want to know more? Please contact us.

Other supplier products

	Silica Sol Investment Casting	The silica sol also shares the name of water glass in general. It is used in the metal casting process as mold adhesive which is mixed with sand an...
	Agriculture & Vehicle	Rayforce's metal casting can be applied to plough, tractor part, soil cultivation, planting, harvesting, hay making, animal feeding machine, etc. ...
	Sodium Silicate Sand Casting	Sodium silicate is a generic name for chemical compounds with the formula Na2SiO3. This material is generally colorless transparent solids, or in w...
	Lost Wax Investment Casting	The lost-wax casting process can differ depending on the application and the requirement, but it generally consists the following steps: Molde-maki...
	Nuclear & Power Plant	Rayforce's metal nuclear castingscan be applied to heat exchange machines, boilers, economizer parts, chemical engineering casting parts, water tre...

供应产品

Same products

	Ductile Iron Castings	卖方: 辽宁博锐机械有限公司	Dandong Foundry is a metal casting manufacturer in China. We are producing iron & steel casti...
	Gray Iron Castings	卖方: 辽宁博锐机械有限公司	Dandong Foundry is a metal casting manufacturer in China. We are producing iron & steel casti...
	Cast Steel Castings	卖方: 辽宁博锐机械有限公司	Dandong Foundry is a metal casting manufacturer in China. We are producing iron & steel casti...
	Cast Iron Seeding Knife Point	卖方: 辽宁博锐机械有限公司	Dandong Foundry is a metal casting manufacturer in China. We are producing iron & steel casti...
	Cast Iron Tractor Parts	卖方: 辽宁博锐机械有限公司	Dandong Foundry is a metal casting manufacturer in China. We are producing iron & steel casti...