For 6063 aluminum alloy and common die steel 4Cr5MoSiV, the shrinkage rate of the die hole should be 1. The size of the die hole should be determined by comprehensively considering the properties of the profile and the shrinkage rate of the die material. Generally, the extension coefficient of the extrusion coefficient should be 10 ~ 50. Determine the number of die holes according to the elongation coefficient.
The following is a brief analysis of the general problems existing in the design of Shenzhen mold manufacturers: 1. If the extrusion ratio is too large, the extrusion force will exceed the normal value and damage the die. Extruded aluminum profiles generally have asymmetric cross-sections and unequal wall thicknesses, which should be paid attention to when designing the mold.
It is necessary to consider the arrangement of the die hole positions, and also combine the specific conditions to improve the metal by changing the height of the die hole working belt Mobility. The design method of unequal length working belts should be adopted for profiles with different wall thickness. Ensure the uniformity of metal flow. 3.09% during the design, which can be selected appropriately according to the die hole size. If it is too small, the mechanical properties of the extruded product will decrease.
The number of die Chinese Plastic Lockers For Household Use factory holes directly affects the extension coefficient. 5. 4. Reasonably arrange the position of the die hole. Properly adjust the radius of the transition fillet and the length of the working belt to avoid stress concentration.01% to 1. 2. Whether the mold design is reasonable or not is an important part of extending its service life
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