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Xia W.,Guangzhou Kinbon Non Ferrous Alloy Metals Co. | Liu Q.,MAGMA Engineering Suzhou Co. | Ren C.,Guangzhou Kinbon Non Ferrous Alloy Metals Co.
Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys | Year: 2015

The casting process of squeezing casting suspension bracket was analyzed by the MagmaSoft, and the optimized processing parameters were presented. The simulation result shows that the un-even wall-thickness can cause the hot spot, and it is difficult to feed and sequential solidification at pressure because of far away ingate, which are responsible for the formation of shrinkage porosity (holes) in the suspension bracket. Through squeezing large-thick location, such as local squeezing feeding, forced cooling or adding chilling block to modify the solidification order of think-large location of the bracket, the shrinkage porosity (or holes) can be eliminated by realizing sequential solidification. Aiming at suspension bracket, through modifying ingate size, shrinkage porosity can be eliminated, which is verified by the practical production. © 2015, Journal Office of Special Casting and Nonferrous Alloys. All right reserved.


Zhang Y.,Guangzhou Kinbon Non Ferrous Alloy Metals Co. | Fu Y.,Guangzhou Kinbon Non Ferrous Alloy Metals Co. | Luo H.,Guangzhou Kinbon Non Ferrous Alloy Metals Co.
Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys | Year: 2015

By analyzing product process of aluminum alloy fixed clamp by squeezing casting, effects of mould temperature on solidification structure of the fixed clamp were described, and processing parameters were presented. There exist some priority in quality and efficiency for producing aluminum alloy fixed clamp by squeezing casting instead of low pressure casting or permanent mold casting. The satisfied mould working temperature for producing fixed clamp is 180~260℃. When filling rate is decreased form 145 mm/s to 70 mm/s, the surface bubble rate in the fixed clamp is lower than 5% after T6 heat treatment. © 2015, Journal Office of Special Casting and Nonferrous Alloys. All right reserved.


Ren C.,Guangzhou Kinbon Non Ferrous Alloy Metals Co. | Chen X.,Guangzhou Kinbon Non Ferrous Alloy Metals Co. | Luo H.,Guangzhou Kinbon Non Ferrous Alloy Metals Co. | Wang J.,Guangzhou Kinbon Non Ferrous Alloy Metals Co.
Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys | Year: 2014

The squeeze casting mould design of the air conditioning compressor cover and its simulation analysis were carried out. The parameters were calculated including extrusion pressure, demoulding force, ejecting force, clamping force and runner size. The main parting surface was determined based on center part of the side-core holes and the workpiece maximum cross section. The overflow slot with ladder structure was adopted. To accelerate exhaustion, exhausted channel was connected at the overflow slot, and the exhausted block was set. The angle pin and plate type core pulling mechanism was considered. The distance of cooling channel center line and the cavity surface is 1~2 times of the cooling channel diameter. The center distance between the cooling channels is 3~5 times of the cooling channel diameter. Gating system meet the requirement of the sequential solidification principle, and the parts can be feed smoothly during solidification, avoiding the shrinkage porosity (holes).

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