Guide: Ladies and gentlemen, do you think you are a qualified mold learner? Look at the mold standards in Europe and America with me and see how many you have reached!

First, European and American mold standards:

1. Embryo: Adoption? LKM？ Mold base Generally use imitation? Hasko template

2. The guide post is inverted (front die guide post and rear die guide sleeve). The guide post is installed in the front die and the guide sleeve is installed in the back die, which is just the opposite of the domestic die set.

3. There must be two pipe nails between the panel and the A plate for pipe positioning.

4. The ejector plate must have a guide post (i.e., a middle bracket). Rarely use paper clips.

5. Steel: commonly used hardening materials: LKM2083, LKM2344, 8406/ |8407| S 136| LKM2767. Generally hardening 52 ~ 54 HRC.

6. Positioning ring: The positioning ring should be 4mm higher than the panel, and 4mm higher than the heat insulation plate if there is one. Diameter of common locating ring:? 90、? 100、? 1 10、? 120、? 125、? 150、? 160。

7. Nozzle arc: FLAT and R 15.5 are commonly used. Minimum guarantee for arc opening of suction nozzle:? 3.5 mm.

8. Do you have thimbles and spools? DME？ HASCO？ Standard.

9. Shuikou: commonly used diving and hot runner (commonly used DME, MasterFlow).

10. Slider: Slider should be positioned and restricted. (Ball screws and springs are commonly used for positioning, and round head screws are used for limiting).

1 1. Block pressing: Round head screws and flat head screws are commonly used for block pressing screws.

12. Inclined roof: The inclined roof shall be made of guide blocks and wear-resistant blocks and made of bronze.

13. Water delivery plug: is it available? HASCO？ 1/4? BRS and 1/8? Two kinds of br.

14. Internal connecting holes for water conveyance: the upper and lower parts of the mold should be machined, but the left and right parts should not be machined. Common specifications:? 20x20，25x20。 .

15. marking: there are usually part name, part number, company name, cavity marking, material marking, recyclable marking and date stamp.

16. mold surface requirements: spark, polishing and photolithography.

17. There should be two lock modules (two) between plate A and plate B of the mold blank.

18. The mold packaging is made of butter, transparent plastic bags and sterilized wooden cases.

19. Mold label: mold number, part number, product name, CD, manufacturing date and mold weight.

20. Gating system: fan-shaped and trapezoidal. S-shaped, all nozzles must be cut off automatically and fall off automatically. Generally use Gate? Diving? Or hot runner; What is the shape of the runner if a rotatable gate is used? Trapezoidal? .

2 1. cooling system:

1) try to cool down with a large diameter? If there is? 10? Do you have to use it? 10? , can't use it? 8? .

2). The countersink and countersink at the end of the cooling pipe must be concentric, and it is not allowed to be crooked.

3) When the pipe joint is at the side, countersink is not needed.

4). The mould shall be marked with? Are you online? ,? Out? , and define the quantity.

5) The waterproof ring adopts HASCO standard.

Second, higher requirements:

1. For the mould blank larger than 2020, prying pits shall be made between all templates including ejector pins.

2. The guide sleeve of the die blank should be processed with an exhaust slot to prevent the guide sleeve from being pulled off.

3. There should be no sharp corners on the mold, and chamfering is needed. Unless otherwise specified.

4. Without consent, the internal mold and mold parts shall not be welded.

5. The periphery of the mold product must be provided with an exhaust slot at an appropriate position.

6. Try to avoid grinding the mold with a grinder. If you must use a grinder, you must use an oilstone to save light (especially the parting surface).

7. The surface treatment of internal mold rubber surface must be carried out in accordance with the technical requirements of bom or other official notices. The processing lines (wire cutting milling machine, CNC gong machine, spark machine) on the non-adhesive plane should also be polished with oilstone.

8. All internal mold materials and mold embryo grade requirements must be purchased according to the technical requirements formally confirmed in the order or design review process. Material certificate must be provided, and if it is a hard mold, a heat treatment report must be provided. All relevant certificates.

9. All the front and rear internal molds, inserts, rows, inclined tops, straight tops (push blocks) and shovels of molds need to be machined with a waist-shaped pit on the bottom or side surface, and the material name and hardness should be engraved.

10. Important and easy-to-wear parts such as ranking, pushing block, shovel and pump mouth must be nitrided and hardened.

1 1. Line position must be located. Positioning methods include slingshot, ball, hasco(dme) standard clamp, etc. , depending on the requirements of each project. Ranking requires layering and wear plates. Layering and wear-resistant plates must use wear-resistant hard materials and need oil grooves.

12. The ranked inclined guide pillar must be tightly pressed and cannot be rotated or loosened. The tail of the inclined guide post must be machined into a hemispherical or frustum shape, which is beneficial to ensure the normal movement of the ranking. If there are two or more inclined guide posts in the same row, the length, size and inclination of the inclined guide posts must be the same.

13. The inclined top seat must be made of wear-resistant hard materials. The inclined roof must be machined into an oil groove. Generally, the inclined top seat is hardened to hrc40-45 degrees with 25 10 or cr 12. Because the inclined jacking seat bears the impact load, so it can't be too hard or it will break, and all C angles are chamfered at right angles. Inclined roof guide (bronze) is required. There is no welding.

14. The runner and glue inlet need to save light #400-600.

15. The thimble, boss, thimble, inclined thimble and thimble plate should be engraved with corresponding identification codes to facilitate installation. If the thimble position on the product is not horizontal, is it necessary to make thimble seat? d？ T-shaped or anti-rotation pin key is used for positioning.

16. the thimble adopts hasco or dme standard, and the selection depends on the technical requirements of' mold' in bom or other formal notice.

17. HASCO standard for waterproof ring! Processing water apron (? o？ O-ring) groove, you need to reserve a gap of 0.25mm at one side for 3 degrees. Generally, the apron should be preloaded by 0.3 ~ 0.6 mm If you don't pay attention to this, the apron will be easily crushed and cause water leakage.

18. If the nozzle is to be nitrided, it must be blocked with a pin. The radius of the pump nozzle must meet the requirements of the drawings. The nozzle was not nitrided, and it may have been punched before it was ejected.

19. Conventional structural molds must be equipped with supporting heads, and both ends need to be ground flat. The small die is preloaded by 0. 1mm, and the large die is preloaded by 0. 1mm-0. 13mm. ....

20. The diameter of the locating ring must conform to the drawings, and the form and position of the ejector pin joint must conform to the drawings.

2 1. Please refer to the bom or the confirmed die drawing for the specifications of the nozzle, and the counterbore of the nozzle must be processed and installed according to the die drawing. Drilling shall not be skewed, and the acute angle shall be chamfered.

22. Water transport must be marked with ini, outi, in2 and out2. ..

23. All marks printed on the mold must be neat and straight, and shall not be bent.

24. The mold needs to be equipped with side locks (straight locks) on four sides. If the side lock cannot be installed, a tapered lock or a tapered lock needs to be installed. Tapered locks shall be installed horizontally.

25. All screws and die fittings should be the preferred standard parts, and the screw head cannot be sawed off. The effective locking length of the screw must be long enough, usually 1.5 or 2.

26. The hot nozzle groove must be circular to avoid scratching the welding wire.

27. Install the hot nozzle id card on the side of the template.

28. Die acceptance: Does the technician need to cooperate with the die engineer for pressing? Mold list? Packaging and demoulding can only be carried out after acceptance and signature by the supervisor.

29. Note: Before formwork erection, water shall be subjected to hydrostatic test (above 100pa), and then the water shall be blown clean by wind.

30. Note: In the manufacturing process, it is necessary to maintain the outer surface of the die blank to prevent rust and scratches. Before packaging, the internal mold needs to be sprayed with white/colorless antirust agent, and all mold surfaces must be cleaned and then coated with butter. Spray blue on the outer surface of the mold embryo!

The above is to improve the quality and grade of export molds, minimize the complaints about mold quality problems, and give the molds to customers' satisfaction, so as to open up more cooperation opportunities.

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