How is the defect of plastic mold product modified?
In the process of plastic production, various reasons cause different defects of products, and the following are common product defects and solutions.
1) deformation products when the mold, mold temperature, is expected to moderate products when the mold temperature is higher, the holding time was not enough and the effect of residual stress in the design, product wall thickness and uneven contraction, the gate location and inappropriate position of plunger, sticky mode is when the design must be considered.
There are too many faults, too small, too small, too fast, too fast, too low temperature, too small, too small, too small.A few products must be annealed to eliminate stress.
It is easy to solve the abrasion of the abrasion, such as the burr at the front corner of the cavity, and the roughness.The bubble temperature is too low, too high, the wall thickness is too thick or too thick, the water is too high, the solvent or volatile matter, the pressure is too large, the exhaust is not smooth, the injection cycle too long causes the plastic to break down in the barrel.
There is no pressure on the mold, the mold deformation, the closure is not tight, the temperature is too high, the gap of the core cavity is too large, the position deviation and so on.
The plastic superheat decomposition, low pressure, the runner, the gate too small and improper location, or the gate design unreasonable, the injection, the plastic is not fully dry.The temperature is too low to form a ripple in the mold filling.