What should be paid attention to before starting or stopping the injection molding machine?
What should be paid attention to before ...
2022-10-18
1、 Technical parameters of injection molded parts
(1) Screw diameter: outer diameter of screw
(2) Effective length of screw: the length of screw thread (MM) is usually expressed in L
(3) Screw length diameter ratio L/D: ratio of effective length to diameter of screw
(4) Screw compression ratio V2/V1: the ratio of the volume of the first screw groove V2 in the screw feeding section to the volume of the last screw groove V1 in the metering section
(5) Injection stroke: the maximum distance of screw movement and the maximum distance of screw recession
(6) Theoretical injection volume: product of JIE area of screw head and maximum injection stroke
(7) Injection volume: the maximum weight of PS injected by the screw at one time (g)
(8) Injection pressure: the maximum pressure of head premelted material during injection (MPa)
(9) Injection speed: the maximum speed of screw movement during injection (mm/s)
(10) Injection time: the shortest time for the screw to complete the injection stroke during injection molding
(11) Injection rate: theoretical volume of injection per unit time; Screw JIE area × At maximum speed
(12) Screw speed: the lowest and highest speed range of the screw when the material is plasticized
(13) Plasticizing capacity: the maximum weight of plasticizing materials in unit time
(14) Screw torque: the maximum torque of screw drive when the material is plasticized (N/m)
(15) Nozzle elongation: the length of the nozzle extending out of the front template and the installation plane of the mold
2、 Technical parameters of clamping parts
(1) Clamping force: the maximum locking force for mold locking to overcome molten metal expansion
(2) Forming area: refers to the maximum projected area of clamping force under a certain cavity pressure
(3) Mold opening force: the maximum force to open the mold to take out the product
(4) Opening stroke: the maximum distance that the template moves to take out the product
(5) Formwork size: front and rear fixed formwork and movable formwork installation flat size
(6) Modulus: the maximum thickness and minimum thickness of the mold that can be installed on the injection molding machine
(7) Template opening distance: the maximum and minimum distance between the fixed template and the movable template of the injection molding machine
(8) Distance between pull rods: distance between horizontal and vertical pull rods of injection molding machine (mm)
3、 Overall performance parameters:
(1) Maximum driving power of motor: power of motor driving oil pump (KW)
(2) Oil tank capacity: rated capacity of hydraulic system oil tank
(3) Machine volume: the maximum length of the machine shape × high × Width
(4) Weight: total weight of the machine
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