When finished the new molds, the mold tryout is essential step to verify the injection molds and find out any potential defects and solve it to ensure the mold perform stable and efficiency during molding production. For every project, when we summit the samples, in the meantime, we always provide mold trial report, video of the injection process, injection machine setting parameters and dimension report etc. to our customers. Here shares one case we just had mold trial recently, and the issues occurred and how we solve it. Issue: General 4-cavities filling is balanced, but only one part has flash and three parts have damage issue at the cavity spring slider position. Flash issue-Solution: improving the fitting. Parts damage-Solution: The spring structure of the slider is not good, and it is easy to cause damage to the parts. We added the T-shaped guide block to avoid the part damage issue.

Challenges Automotive injection mold is our main area that our engineer team have over ten years to design automotive mold, also tool making team have rich experience making this kind of molds. There’re many hooks of this part and easy out of shape, the mold has 40pcs cavity core inserts, 34pcs slider inserts and 36pcs lifters, it takes one week to assemble the mold. But the lead time is very urgent, how can we trial the mold within lead time under so large heavy work? Solution In period design the mold process, we make a good solution how to design the mold, and we also make the mold flow analysis to analyze the shrinkage and deformation, injection gate of mold, then optimize the structure of mold. We use our most advanced equipment the tool and keep the precision of mold steel, by the way our tool making team work over to assemble the tool that we trial the mold within lead time. Result Via the whole team cooperation and efforts that first samples were sent to clients. Our customer is satisfied with the samples.

Challenge This is a molded part for medical device. The plastic part is difficult to be wrapped very well with helical and soft tube which is easy to have flash and resin leakage and tube is easy to be broken. Solution The mold is used hot runner turn to cold runner and the steel dimension must be precise. In the same time need to choose the right valve hot runner. It needs pay attention the mold temperature during injection molding parts. It sets up infrared sensor on injection machine to insure center of the tube aim at the mold. Result We discussed with client to solve issue when happen unexpected situation. This project continue long time and test mold several times, finally sent the molds to customer. We think this mold should be used valve hot runner that produce part is more perfect.

Challenge  YF molded complex insert mold and overmolding for electronic, connectors, auto parts, switches, mechanical components, sensors, fasteners, gears ect industry area. One-day regular customer told us that they have a new developing part which need to make a over molding. We check the 3D part drawing and demands for the part that we know about this is not a simple mold. The plastic part need to wrap metal plate and screw in the same time and meet the assembling & functional. Solution Our engineering team optimized the mold design and manufacturing tool in advanced equipment. After twice mold trial and test , the samples are approved by our customer. Result The metal and plastic part can be moulded one step which can be saved production cost, no need to put the metal plate and screw by hand.