The gas hole , shrinkage cavity and crack were eliminated through up - grading technology
2.
Solidification process simulation and shrinkage cavity prediction of cylinder head casting
3.
Porsity and shrinkage cavity defects on die castings of motorcycle boxesare introduced , some solutions are used , the results prove that correct runnersare important for decreasing of boxes ' defects
4.
Hot runner benefit is delivered at pressure , model can be overcome on certain level the hollow that be not worth as a result of filling makings and forms , shrinkage cavity , be out of shape wait for blemish
5.
It is because that the forging and heat treatment can greatly change the mechanical properties of steel , reduce the shrinkage cavity and dispersed shrinkage in metal structure , and keep the organizational structure tighter
6.
Temperature field of hollow ingot solidification is simulated by fem . to different mould , effect of heat transfer coefficient between inner sleeve and cooling medium and thickness of core refractory on final position of solidification , the highest temperature of inner sleeve against cooling medium , and shrinkage cavity and porosity are compared . in addition , change of temperature in typical position of core refractory is also compared
7.
Abstract : temperature field of hollow ingot solidification is simulated by fem . to different mould , effect of heat transfer coefficient between inner sleeve and cooling medium and thickness of core refractory on final position of solidification , the highest temperature of inner sleeve against cooling medium , and shrinkage cavity and porosity are compared . in addition , change of temperature in typical position of core refractory is also compared
8.
Abstract : based on equivalent liquid surface descending method ( elsdm ) and isolated melting zone method , a multi - hot - spot and simultaneous shrinkage - feeding method was established to predict the shrinkage cavities of steel casting during solidification simulation . the shrinkage in each hot spot can be simulated and fed dynamically and simultaneously by itself using this method . then two practical steel castings were analyzed by this method
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