1) The center segregation and porosity and the shrinkage cavity are obviously improved, when the stirring electric current rises from 100 A to 300 A.

2) The gas hole , shrinkage cavity and crack were eliminated through up - grading technology.

3) When such a steel solidifies, a shrinkage cavity know as a "pipe" is formed in the top central part of the ingots.

4) The linear shrinkage and shrinkage cavity rate of aluminum-richening zinc alloy is tested, and the stress is placed on the study of the underside shrinkage phenomenon of the alloy.

5) For the defects such as dead zone and shrinkage cavity in conventional extrusion process, an inner cone punch was proposed to improve the metal flow behavior.

6) Shrinkage porosity and shrinkage cavity have relation with heat expansion of metal in welding process and forge force in later welding time.

7) Factors of quality such as carbon segregation, shrinkage cavity and surface transverse cracks are analyzed,(http:///shrinkage cavity.html) and the relevant measures for improving the process are put forward.

8) Stomatal dispersed shrinkage, shrinkage cavity, sonim and slag inclusion belong to this kind of defect.

9) Shrinkage cavity and shrinkage porosity were eliminated by adding iron chill on the valve body which make progressive solidification, together with atmospheric feeder which feed the casting.

10) The shrinkage cavity defects in tail of extruded aluminium alloy bar are studied by ultrasonic wave detection.

11) The shrinkage cavity, depression, shrinkage porosity, scab and swell defects often took place with the heavy plate castings produced by adopting traditional foundry method.

12) The mechanism of the inclusion and shrinkage cavity in high-strength brasses produced by bottom running method was analyzed from the point of view of production technology.

13) Batch production shows there are no shrinkage cavity and porosity in casting, and no blowholes and sand inclusions on the top surface. The yield of the casting is 81%.

14) However leakage inside of the casting was found in the test. There were defects in the casting, such as coarse grain, shrinkage cavity, shrinkage porosity and so on.

15) A new method to simulate directly and predict the formation process of shrinkage cavity, its final shape and position for steel castings and ingot was proposed using computer.

16) This shrinkage pattern can be applied to analyse the causes of shrinkage cavity formation and find the method for eliminating shrinkage defects.

17) Large thick-section ductile Iron housing easily produces casting defects such as shrinkage cavity, shrinkage porosity, graphite floating and spheroidizing decay.

18) It is discussed that adiabatic material, as well as ratio of height and width effected solidification, shrinkage cavity and shrinkage porosity.

19) The main deformity of the center housing cast in the automobile turbocharger is shrinkage cavity.

20) The numerical simulation of 3D temperature field of castings during solidification process was carried out and the shrinkage cavity and porosity of sample castings were predicted using G/R method.

21) The solidification process of the cross-section A-A of the high pressure inner cylinder is simulated and the shrinkage cavity position is predicated by means of utility software.

22) A new method was developed to simulate quantitatively the formation of shrinkage cavity in steel castings.

23) When the addition of ceramic reinforcement exceeded the maximum, the composite salt cores would produce large shrinkage cavity.