Side covers mold factory, square covers mold, Precision Mold

Why is the editor of a round, because no matter how turn round, square manhole covers are round plastic mold, which side will not narrow it will fall to 2, easy to transport, you can roll three children, saving material, the same large area, with less material 4, resulting in a round sewer mouth water can reduce the chances of theft after stealing cover irregular objects (bicycles, stone, etc.) fell off. 5, can reduce the likelihood of round sewer cover was stolen after pedestrian hit because hope and fell off, because the woman is round, round eyes, sewer mouth is round, the eyes can be reduced due to the shape of the object and see other force eye fatigue and body fatigue caused by uneven, thereby reducing the possibility of falling into the sewer. Injection pressure: the injection pressure is greater impact on the shrinkage factor side covers mold, especially after the end of the filling pressure packing 335 pages. In general, the larger the density of the material due to pressure generous covers mold manufacturers, shrinkage is small. Injection speed: Injection speed has little effect on shrinkage. But for the thin-walled plastic parts or the gate is very small, and the use of reinforced concrete square material covers mold, injection speed is shrinkage. Mold temperature: the higher mold temperature shrinkage usually larger. But for the thin-walled plastic parts, mold temperature is high melt flow impedance is small, *] and shrinkage but smaller side covers mold factory, square covers mold, precision mold from Hebei fine of up to mold machinery factory provided. Hebei Jing Mould Machinery Factory (www.dzsmj.com) strong, credible, in Baoding plastic industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the precision molds and you work up into the brilliant, for a better future!