We put the topic focus on process embedded box and pouring, buried box programand process is no problem, what a machine is related to sand box structure. 3 wetheoretically analyzed, because the length of vertical pouring castings taken in 1500mm, molten gold machine and the vacuum structure of sand box for
The bottom and side pumping pumping structure, upper case and the lower case, upside parallel to the plane, apparently parallel and perpendicular to the pressure to justpoint to the left (right) below, whether negative pressure leads to model deformation.Control box of time. (after the formal production has taken). The process of burying the box I
They also take a prudent, hierarchical compaction, each carving wax times add sandheight is about 300mm, six times each tap, tap the time in 40 ~ 60s, volume within 5mm measuring deformation after casting. Paint brush, ultrasonic cleaning machinedrying before the application of leveling platform leveling. When necessary
Increase the loading (formal production after the tooling).
The same process technology of white mold, in the brush coating, we suspect that theappearance is deformed. The model on the platform. Measurement results fordeformation at around 5mm, jewelry equipment to solve the deformation problem after the paint brush, brush paint in the last time after,
Jewelry equipment coating in seven to 80% dry conditions, in the plate the ColonelPing, wax injection machine is placed above a special weight, until completely drycoating, the overall measurement, fill the mouth without deformation.
Buried box, molding, casting, magnetic polishing machine through the maintenance of casting, almost no distortion, only 1 ~ 2mm, the casting error range, so that the deformation problem solved.
Large-scale precision forging casting the same type should take the followingmeasures: steam cleaning the body density should be consistent (forming + module),density control between 18 ~ 22kg / m3. We transformed two sand box, jewelry toolswill vacuum pipe (box) vacuum tube is parallel to the width
Direction, this just is the two negative pressure force is perpendicular to the bottomsurface of gold. The buried box reasonable process and sand box pressure structure.