ABS Acrylonitrile Butadiene Styrene*** Polymer
Typical applications:
Automobiles (dashboards, tool hatches, wheel covers, reflector cases, etc.), refrigerators, high-strength tools (hair dryers, blenders, food processors, lawnmowers, etc.), telephone cases, computer keyboards, recreational vehicles such as golf carts and jet skis.
PMMA polymethylmethacrylate (acrylic)
Typical applications:
Automotive industry (signaling equipment, dashboards, etc.), medical equipment (blood storage containers, etc.), industrial applications (video discs, light diffusers), consumer products (beverage cups, stationery, etc.)
PP polypropylene (polypropylene) (polypropylene adhesive, with excellent bending resistance)
Polypropylene (PP) (with excellent bending resistance). p>
Typical applications:
Automotive industry (mainly PP with metal additives: fenders, ventilation ducts, fans, etc.), appliances (dishwasher door gaskets, dryer vents, washing machine frames and covers, refrigerator door gaskets, etc.), consumer products (lawn and garden equipment such as lawn mowers and sprinklers, etc.).
PS Polystyrene
Typical applications:
Product packaging, housewares (cutlery, trays, etc.), electrical (clear containers, light diffusers, insulating film, etc.)
PVC (Polyvinyl Chloride)
Typical applications:
Water supply lines, household plumbing, house wall panels, commercial machine housings
SA styrene-acrylonitrile*** polymer
Typical applications:
Electrical (sockets, housings, etc.), daily commodities (kitchen appliances, refrigerator units, TV bases, cassette tape boxes, etc.), the automotive industry (headlight boxes, reflective realm, dashboards, etc.), household goods (tableware, food knives, etc.), cosmetic packaging, etc.
PVC (polyvinyl chloride)
These products are used in the following industries:
PVC (Polyvinyl chloride)
PC polycarbonate
Typical applications:
Electrical and commercial equipment (computer components, connectors, etc.), appliances (food processors, refrigerator drawers, etc.), the transportation industry
(front and rear lights, instrument panels, etc.)
Two, to confirm that the number of molds to be opened for plastic products and molds Material selection
1, the number of molds need to open the product selection principles:
a, transparent products and non-transparent products separate molds, b, there are special requirements, such as injection molding color molds need to open a separate mold, c, the mold row as much as possible to choose the size of the arrangement of similar to the same, such as the product is too large or too much line needs to be a separate mold, row of mold cavities as much as possible should not be too much, unless the product size is small
2, mold steel selection (plastic mold steel)
a, domestic: B30 B20 45 50 B610SM1 40Cr
b, U.S.: 1050 1045
c, Japan: S50C S48C S45C
d, Germany: 2738 C45 C50
Use: Used in the manufacture of small production batches, mold cross-sectional area is not large, dimensional accuracy and surface roughness requirements are not high plastic forming molds or mold frame
3, advanced mirror mold steel (transparent lenses)
a, China: 3-4Cr13 3Cr2Mo P4410
b, the United States: 420 P20 P20tNi
c, Japan: PDS5S NAK80
d, Sweden: s136 718
e, Germany: 40CrMo74 2083 2738
Use: used in the manufacture of PVC and other corrosive plastic molds, transparent plastics and polished plastic film requires high
Mold steel characteristics: high purity of steel, has a good cutting processing Performance, made of mold high precision, never deformed. Higher toughness, suitable for large and complex molds.
Three, confirm the mold design and mold requirements
Clearly to use the mold materials and product materials, to confirm the mold design precision and tolerance, mold surface treatment process; mold materials are not required for special treatments such as hardening, quenching, etc.; followed by the extent of the requirements of the plastic product and the strict procedures for deciding whether to open the large spout mold or fine spout mold
The fourth, mold design mold manufacturing
The fourth, mold design mold manufacturing
The fourth, mold design mold manufacturing
Four, mold design, mold manufacturing and mold processing Plastic characteristics and injection molding1, cell phone shell mold knowledge 2, hand plate model (rapid prototyping technology) 3, mold surface technology 4, with threaded plastic product mold manufacturing technology
5, knowledge of electric casting 6, plating knowledge