Does the wear of the reverse ring of the injection machine cause yellow lines and spots?
Absolutely, for different materials and colors to the extent of the noise, if only the surface of the wear may be galvanized, damage, wear, and change it, if you help, please add essence, thank you ~ ~ ~!
If the transparent material appears yellow lines and black spots, it should be the temperature in the cylinder is abnormal.The wear of the backstop ring is generally inaccurate in weight measurement. In other words, frequent lack of material.
Screw, cylinder, nozzle has research injury or spot, will cause hanging material, easy to cause material change color. Check ring wear, try to use the following method, the spray nozzle can be not heated, and then use a low injection pressure discharge (slowly increase the injection pressure), nozzle material but not shoot; injection stop after level changes; repeat. If the material level is less and less, until zero. The back ring is worn out, and the wear degree of the backstop ring can be judged according to the speed of the material turnover.
