Precision casting at the time of the casting, we will inevitably precision casting wax mold damage, damage to the wax models we need to have it repaired, but repair wax models is very important, this project should be done through professional technology, then how should we reasonable repair?A, in the precision casting wax mold repair, first of all, repairing wax personnel in any kind of precision casting wax mold, first of all find out, the repair which part;Then, check the wax models have the defects such as bubbles, concave shrinkage, deformation, found the problem, promptly notify the wax pattern, so as not to cause the batch wax models of waste;Finally, repair mold: to remove the residual flash on the wax models or parting line, use the blade cutting edge along the wax models carefully and gently cut off flash or parting line, two sides for formation of burrs peel to horizontal and vertical peel an oblique cutting, wax models shall not damage, for a small flash may also directly with a soft cloth wipe.Wax mold cavity repair: there is big and long and narrow niche on wax models, application of repair, wax, repaired, shape to the right.Bubble repair: all bubbles must prick on wax models, with repair, wax, repaired, shape to the right.Flow mark fixed: for polishing parts, machining parts, petroleum jelly wax, be careful not to hurt the wax pattern itself.In the wax models using wax removal lon-izing blew the crumbs, put in the flat, according to the technical requirement to quarantine waiting for inspection.