Yingtu high quality horizontal injection machine prompts you 1
The heat shield on the barrel can save electric energy and prolong the life of the electric heating coil and the current contactor. Check whether the cooling pipes are smooth for a long distance, and connect the cooling water jacket at the end of the oil cooler and the barrel with cooling water. Before the operation of vertical injection molding machine, check whether the power supply voltage is in conformity, generally, it shall not exceed ± 6%. Before the operation of vertical injection molding machine, check whether there is lubricating oil in each moving part and add enough lubricating oil.
Yingtu high quality horizontal injection machine prompts you 2
It's important to choose the right model. In fact, the main choice is the machine type and series, according to the production of products and plastics to make a comprehensive decision. There are many types of ejectors. At the beginning, we should judge what series or types are needed. For example, if the raw material is bakelite, you can choose the type from the perspective of single and double colors and mixed colors. While some products need high precision and high injection pressure when they are processed, we need to choose the kind of targeted machines. What selection problems should be paid attention to when purchasing hand injection molding machine?
Yingtu high quality horizontal injection machine prompts you 3
The oil seal of injection return cylinder of high-speed injection molding machine is damaged, and the oil return phenomenon and leakage rubber occur when burning rubber; the screws of injection molding machine shooting and exit cylinder are loose, which makes the shooting table offset, causing leakage; the offset of shooting table is that the inner diameter of the nozzle nozzle hole is no longer in the same line, the contact between the nozzle ball and the nozzle ball is incomplete, there is a gap, and rubber leakage occurs. If the shooting does not match with the die nozzle, there will be demoulding or glue leakage; if the glue leaks due to long-term collision, deformation or cracks; if the high-speed and high-pressure causes the nozzle to loosen, the nozzle will contact the barrel flange to produce leakage. Mold problems under high pressure and high speed, the mold is deformed and the plastic is extruded out of the gap; the flow channel is blocked, and the rubber can not be injected into the cavity to produce leakage; the main channel temperature of the hot channel mold is abnormal and blocked.
Yingtu high quality horizontal injection machine prompts you 4
The viscosity of the oil is reduced, the temperature rise of the injection molding machine is too high, the viscosity of the oil is reduced, the leakage is increased, the volumetric efficiency of the pump and the efficiency of the whole system are significantly reduced. As the viscosity of the oil decreases, the oil film of the slide valve and other moving parts becomes thin and cut, the friction resistance increases, resulting in increased wear. The moving parts with different coefficient of thermal expansion in the mechanical thermal deformation hydraulic components are blocked due to the smaller fit clearance, resulting in action failure affecting the transmission accuracy of the hydraulic system, resulting in poor working quality of the parts. What harm will happen if the temperature of injection molding machine is too high