Molten gold machine based on the first two tests, we put the question focus onprocess embedded box and pouring in, what to play machine embedded box programand process is no problem, and whether the sand box structure. 3 we theoretically analyzed, because the casting length in 1500mm adopt vertical casting
Note, and the vacuum structure of sand box at the bottom and side pumping pumpingstructure, upper box and a lower box, jewelry equipment up to side parallel to theplane, apparently parallel and perpendicular to the pressure to just point to the left(right) below, whether negative pressure leads to model deformation. Control box of time. Buried
The process of case we also adopt prudent, hierarchical compaction, every time addsand height is about 300mm, six times each tap, tap the time in 40 ~ 60s, volumewithin 5mm measuring deformation after casting.
The negative pressure structure buried box reasonable process and sand box jewelry tools.
Conclusion through the above three experiments, jewelry equipment large-scale precision forging casting the same type should take the following measures: bulk density should be consistent (forming + module), density control between 18 ~ 22kg /m3.
Wax injection machine based on the first scheme, the same white mold manufacture process, in the brush paint, fill the mouth we suspect appearance deformation. Wetransformed two sand box, the vacuum pipe (box) vacuum tube is parallel to the width direction, gold water
Like is just two of the negative pressure to be perpendicular to the sand bottom surface. Buried box, molding, casting, casting through maintenance, almost no distortion, only 1 ~ 2mm, the casting error range, so that the deformation problemsolved. Ultrasonic cleaning machine model will be put on the platform
The existing deformation is about 5mm, in order to solve the deformation problemafter the paint brush, brush the last time to paint, paint in seven to 80% dry case,magnetic polishing machine in the flat plate placed above Colonel, special pressingiron, steam cleaning machine to be completely dry coating, whole
Measurement, no deformation. (after the formal production has taken). When necessary, can increase the tooling (formal production after the tooling).