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

	Die casting	High precision die castinginvolves 3 key elements: the die casting machine, the mold, and the alloy materials, and the die casting could be describ...
	Vacuum Die Casting	The vacuum pressure casting, as this name indicates, is casting method which the major processes including the melting, pouring, solidifying are pe...
	Ductile Iron Casting	Ductile iron is a type of graphite-rich casting iron, but it has not a long history that it was discovered in 1943. Ductile iron actually is not...
	Vacuum Die Casting	The vacuum dies casting, as this name indicates, is a casting method in which the major processes including melting, pouring, solidifying are perfo...
	Aluminum Casting	Aluminum is a lightweight metal with silvery-white color. Because of its chemical features, aluminum never exists in the metallic form in nature. B...

供应产品

Same products

	陶瓷型芯注射机	卖方: 秦皇岛埃孚科技有限公司	陶瓷型芯注射机主要用于形状复杂，高品质、高精度铸件的陶瓷型芯的成型。该设备通过吸收国内外先进制造技术和精铸行业的自身特点，研制开发成功。 合模力：35T-100T
	压蜡机	卖方: 秦皇岛埃孚科技有限公司	注蜡机用于精密铸造生产中蜡模的制作。合模力最大 ：10T-150T
	全自动脱蜡釜	卖方: 秦皇岛埃孚科技有限公司	脱蜡釜，是精铸生产中的型壳脱蜡专用设备 内腔尺寸: Φ1000×1200mm/ Φ1200×1500mm/ Φ1400×1600mm
	CNC TURNING	卖方: Baoji Haiqiao Industrial & Trading Co., Ltd.	As a CNC turning manufacturerin China, HQ has the capacity to dealing with both small lot and mas...
	CNC MILLING	卖方: Baoji Haiqiao Industrial & Trading Co., Ltd.	As an excellent CNCmilling manufacturerin China, HQ is equipped with types of CNC that allow us t...