Conical twin screw extruder and wear failure repair methods extruder wear failure after depending on the screw and barrel wear degree and repair symptoms can adopt the following methods:
- by measuring the screw and barrel of wear in 0.30 Within the mm range, the screw and barrel can be chrome-plated and then finely ground and polished by a dedicated grinding machine to meet the original fit size indicators.
(2) when the barrel when the wear and tear of the available special machine tools will be broaching machine barrel, the other processing a cylinder liner, take hot pressing method and the original barrel set set as a whole, and then according to the size of cylinder diameter (usually slightly smaller than the original barrel diameter size), finishing the other new screw, make it to suit the new cylinder diameter.
(3) update the screw and barrel. It is best to purchase from the original extruder manufacturer to prevent the newly purchased screw and barrel from not matching the electric heating ring, bracket and spline sleeve of the original extruder. Of course, for the general extruder user enterprises, the above-mentioned repair methods require certain mechanical processing equipment and capabilities. The vast majority of enterprises do not have these capabilities and need to contact professional extruder equipment manufacturing enterprises to entrust the repair.
引自-韦永斌.影响锥形双螺杆挤出机磨损的因素及延缓磨损的对策[J].技术与市场,2011,18(11):41-44.
