Mold Design Specification 1. Use the FUTABA standard mold base structure mold base.
2. Use Zhenggang or the same standard mold parts and accessories.
3. All guide pins (GUIDE PIN), bushings (BUSHING) must be convex at the end.
4. All mold design drawing paper size should be uniformly used in full-open size, and will be produced only after approval.
5. When processing the finished part of the mold, the half tolerance of the dimensional tolerance in the finished drawing shall be used as the machining tolerance, and the tolerance on the finished drawing shall not be used for machining.
6. All units of measurement are based on the inch system, the length is in millimeters, the weight is in kilograms, and the temperature is in degrees Celsius (C).
7. Pressure in English PSI, 1 PSI = 1 psi = 14.2 kg / cm ^ 2 .
8. Confirm the mold thickness, clamp the template stroke, and eject the stroke.
9. The position of the die hole on the four sides of the male and female molds, at least one hanging hole on each adjacent side of the “A†and “B†plates, and at least one side of the other template has a hanging hole.
10. Any of the four guide pins must be eccentric, that is, not symmetrical with the other three to prevent the male and female molds from being closed in the opposite direction.
11. Print the steel specifications and hardness on the bottom of the mold.
12. List the material list and indicate the material and surface treatment specifications, and indicate the wattage specification and voltage of the heater.
13. Print, number all mold parts.
14. Both sides of the mold should be fixed with iron bars before packing to avoid separation of the die faces.
15. When more than one hole is formed in the same finished mold cavity, consecutive numbers shall be used to identify the cavity.
16. A die hole is required on the die holder at the center of gravity of the die to avoid tilting the die when lifting the die and to determine that the thread and depth are sufficient to load the die.
17. In addition to the large-area steps of the mold core, the PARTING LINE LOCKS should be installed.
18. When the rib depth exceeds 5mm, it is necessary to add an air release pin at the bottom of the rib or to make it with inserts to facilitate plastic filling.
19. When the pin is broken by the plane, the top end of the pin should be extended into the steel to avoid pressure loss or deformation on the top surface of the pin.
20. The important part of the finished product should be reserved for a small amount to avoid over-welding.
21. Molding is not allowed to repair welding without permission.
22. In special cases, when repairing the mold with repair welding, the mold should be used to make the welding rod with the same material, so as to avoid the influence of different materials on the appearance of the finished product and leaving traces.
23. All assembly groups shall have exact tolerances and shall not be left with traces of percussion.
24. All the stencils should be chamfered except for the parting surface.
25. The mold for the electric heater must be accompanied by a circuit diagram for the correct wiring of the production unit.
26. When the mold needs to be bitten, the draft angle should be at least 2 degrees, and the depth of the bite should be increased by 1 degree for every 0.001". For example, when the depth is 0.003", a draft angle of 5 degrees is required. The surface of the cavity before the flower must be at least #300
Sandpaper is polished.
27. Confirm the cavity and the mold base is strong enough.
28. The mold design should meet the requirements of the finished drawing.
29. Provide detailed drawings of all parts that are not part of the standard specifications.
30. After the surface of the mold core is electroplated, the mold core should be heated to 500F and heated at 1 inch thickness for 1 hour to prevent embrittlement of the mold.
31. The thickness and adhesion strength of the plated parts must be paid special attention and must not be peeled off after use.
32. American plastic machine ejector rod position map, the main material end end barb design, and three-piece mold or the use of stripping plate mold, the tie rod design must design barbs please.
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