Household Appliances Injection Molding

The classification of small appliances mainly includes: microwave ovens, rice cookers, electric irons, electric heaters, vacuum cleaners, electric fans, hair dryers, water dispensers, induction cookers, electric hot pots, electric kettles, air humidifiers, electric shavers, soybean milk machines, juicers machine, coffee machine, etc.

The main products of Zhongwei Precision Machinery Co., Ltd. are nylon products, plastic products, ABS series, rubber products, etc. The types of injection molding materials that Household Appliances Injection Molding can process: polyethylene (PE), polypropylene (PP), nylon (PA, PA6, PA66), polyoxymethylene (POM), ABS, polyurethane (TPU), polyphenylene sulfide ( PPS), polycarbonate (PC), polyether ether ketone (PEEK), etc.

Product Description

1. Implementation standards: the company strictly implements ISO9001, ISO14001, IATF16949, VDA6.3 certification,

The products have passed the certification of ROHS, FDA EU, etc.

2. Product material standards: ISO, GB, ASTM, SAE, EN, DIN, BS, AMS, JIS, ASME, DMS, TOCT, GB

3. Main processes: plastic injection molding, metal insert injection molding, investment casting, die-casting aluminum,

4. Available materials for injection molding:

Processable nylon products, plastic products, ABS series; injection molding material types: polyethylene (PE), polypropylene (PP), nylon (PA, PA6, PA66), polyoxymethylene (POM), ABS, polyurethane (TPU), poly Phenyl sulfide (PPS), polycarbonate (PC), polyether ether ketone (PEEK) and 3D printing can be customized according to customer requirements.

Common materials for injection molding parts of household appliances

How to choose modified plastics for Household Appliances Injection Molding?

1. Application of plastic materials in injection molding parts of small household appliance shells

① The main material for appearance parts: ABS: high gloss, easy to spray, but not high temperature resistance; PP: low cost, good fluidity, but poor dimensional stability; PC: high strength, high temperature resistance, good transparency , but easy to crack; PC/ABS alloy: excellent comprehensive performance, but high price.

② Main materials for decorative parts Transparent material: transparent ABS, PMMA, PC, etc. Electroplating material: Electroplating grade ABS Film material: PET film, PC film.

③ Core requirements of 3C key parts Main materials: flame retardant PBT, flame retardant PP, flame retardant PPO.

④ Core requirements for other key structural parts Main materials: POM, glass fiber reinforced nylon, PPS, PPA, PEI.

2. Plastic selection of common small household appliance shell injection parts

(1) Injection molded parts of microwave oven shell The plastic parts on the microwave oven are mainly external parts, including shell, base, handle, knob, etc., which are required to be heat-resistant. The selected plastic varieties are PBT/PET+GF, PBT+GF, PC/ABS, heat-resistant ABS, HIPS, heat-resistant PP, PP.

(2) Rice cooker shell injection parts The shell injection parts on the rice cooker are mainly external parts, including shell, base, cover, handle, switch, etc., which require heat resistance. The selected plastic varieties are ABS, high gloss PP, PP.

(3) Electric iron shell injection molding The performance requirements of plastic materials used for electric iron shell injection molding are mainly heat resistance, followed by impact strength and appearance. ABS, high gloss PP can be used for the shell, handle and sink base; parts close to the heating area require high heat resistance, PC, PA+GF, PBT/PET+GF, PBT+GF, heat-resistant ABS can be used; heat-resistant ABS of the base Higher performance requirements, PBT/PET+GF, PET+GF can be used instead of metal parts.

(4) The injection molded parts of the electric heater shell The plastic materials used on the electric heater are required to be heat-resistant, especially the outlet grille. The selected plastic varieties are PBT/PET+GF, PET+GF, PC, PC/ABS, heat-resistant ABS, heat-resistant PP

(5) Injection molded parts of vacuum cleaner shells The plastic materials used for vacuum cleaner parts require anti-static to avoid dust absorption, and also require good electrical properties, good rigidity, impact resistance, scratch resistance, good dyeability, and gloss, especially the shell. The selected plastic varieties are ABS, HIPS, high gloss PP, and PC, AS, GPPS can be used for transparent parts.

(6) Injection parts of electric fan shell The plastic parts used in electric fans mainly include fan blades, blade covers, shell covers, knobs, etc. The selected plastic varieties are ABS, HIPS, high gloss PP, PP+GF, AS+GF.

(7) Injection molding parts of hair dryer shell The selected plastic varieties are PBT/PET+GF, PET+GF, PC, heat-resistant ABS, and heat-resistant PP.

(8) Injection parts of the water dispenser shell The plastic parts on the water dispenser require good rigidity, high gloss and impact resistance. The selected plastic varieties are ABS, HIPS, high rigidity PP.

(9) Injection molding parts of magnetic cooker and electric hot pot shell The selected plastic varieties include heat-resistant ABS and high-gloss heat-resistant PP.

(10) Injection parts of electric kettle shell The selected plastic varieties include PC/ABS, heat-resistant ABS, and high-gloss heat-resistant PP.

(11) The plastic types selected for the air humidifier shell injection parts are: transparent part (PC, GPPS), opaque part (ABS, high gloss PP)

(12) Juicer, soymilk machine shell injection molding The selected plastic varieties are: transparent part (PC, AS, GPPS), opaque part (ABS, high gloss PP).

(13) Plastic parts for the outer shell of the coffee machine The plastics used are: transparent part (PC), opaque part (ABS, high gloss PP).

(14) Injection parts of electric shaver housing.

At present, PP, ABS, PC/ABS, PC, PBT, PET, PBT/PET, etc. are generally used for the injection molded parts of small household appliances on the market. The modified plastics are also different, and there will be differences in color, gloss, etc.

Zhongwei Precision is a group enterprise specializing in the design and manufacture of precision molds, precision injection products, precision casting and metal injection molding production for many years. The company focuses on providing high-end brands with product design, precision mold manufacturing, injection molding and assembly, after-sales service A complete set of solutions, the products are widely used in household Household Appliances Injection Molding shell accessories, medical and medical equipment injection molding accessories, cosmetic packaging injection molding parts and other fields.

Post Injection Molding Process

1. Processing equipment: CNC, WEDM, lathe, milling machine, drilling machine, grinder, etc.;

2. Surface treatment: For some products that require subsequent processing, we can provide surface treatment services to achieve the special purpose of customers. At present, we can provide degreasing, polishing, electroplating (gold, silver, nickel, tin, galvanized, etc.), anodizing, electrophoresis and other surface treatment services for precision parts.

Moulds and Inspection Fixtures

1. Mold service life: usually semi-permanent. (except for lost foam)

2. Mold delivery time: 10-25 days, (according to product structure and product size).

3. Tooling and mold maintenance: Zhongwei is responsible for precision parts.

Quality Control

1. Quality control: the defective rate is less than 0.1%.

2. Samples and trial run will be 100% inspected during production and before shipment, sample inspection for mass production according to ISDO standards or customer requirements

3. Testing equipment: automated visual inspection equipment can carry out 100% inspection of products, spectrum analyzer, golden elephant analyzer, three-coordinate measuring machine, hardness testing equipment, tensile testing machine.