Our Polystyrene PS Injection Molding Services
Eleva la tua produzione con il massimo della tecnologia Yigu Polistirolo (Ps) Servizi di stampaggio a iniezione—where precision meets versatility. Whether you need transparent packaging, lightweight consumer products, or high-volume electronic components, we leverage our injection molding expertise, strumenti personalizzati, and strict quality control to deliver cost-effective, customizable PS parts tailored to your industry needs.
Cos'è il polistirolo (Ps) Stampaggio a iniezione?
Polistirolo (Ps) is a widely used thermoplastic polymer made from styrene monomers, celebrated for its clarity, economia, e facilità di elaborazione. Stampaggio a iniezione is a manufacturing process that melts plastic pellets, injects the molten material into a custom mold cavity, cools it, and ejects the finished part. Combinato, PS injection molding produces consistent, high-quality components for diverse sectors, leveraging PS’s unique traits to meet various application demands.
Definizioni chiave & Process Overview
| Termine | Definizione |
| Polistirolo (Ps) | A thermoplastic with two main forms (rigid and foam); known for clarity, leggero, and low cost. |
| Stampaggio a iniezione | A cyclic mass-production process: PS pellets → melted → injected into mold → cooled → ejected (repeats for efficiency). |
| Cavità della muffa | The hollow space in a mold that shapes the final PS part; can have 1–128 cavities for high-volume output. |
Material Properties of PS
PS’s distinct properties make it ideal for injection molding. Below are the most critical traits for manufacturers and buyers:
- Clarity and Transparency: Amorphous PS (general-purpose PS) ha 90% light transmittance—comparable to glass, making it perfect for visible packaging.
- Densità: 1.04–1,06 g/cm³ (leggero, reducing shipping costs and part weight for consumer goods).
- Punto di fusione: 140–180 ° C. (low melting temperature, lowering energy consumption during molding).
- Fragilità: Rigid PS is brittle (forza di impatto: 1.5–2.5 kJ/m²), but can be modified with rubber additives for toughness.
Ease of Processing: Low viscosity when melted, filling complex mold details easily—ideal for intricate parts.
Le nostre capacità: Delivering Top-Tier PS Injection Molding Solutions
Alla tecnologia Yigu, Nostro PS injection molding expertise is built on advanced equipment, skilled engineering, and a focus on solving client challenges—from small-batch custom parts to large-scale production runs. We prioritize precision and quality to ensure your PS components meet the highest standards.
Creazione di capacità di base
| Capacità | Dettagli | Vantaggi per te |
| Strumenti personalizzati | In-house mold design and fabrication (aluminum for prototypes, hardened steel for long-run PS parts). | Molds tailored to your part’s geometry (PER ESEMPIO., intricate packaging or electronic casings); lead times as short as 2–3 weeks. |
| Stampaggio di precisione | CNC-controlled injection machines with ±0.003mm tolerance; in-line vision inspection for dimensional accuracy. | Ideal for small, parti dettagliate (PER ESEMPIO., componenti del dispositivo medico, Connettori elettronici) that require tight specs. |
| Produzione ad alto volume | 30+ macchine per stampaggio a iniezione (50–600 tons clamping force) with automated feeding and ejection systems. | Capacità di produrre 800,000+ PS parts/month; lower unit costs for bulk orders (PER ESEMPIO., confezione, beni di consumo). |
| Controllo di qualità (Qc) | Controlli in linea (per chiarezza, precisione dimensionale) and post-production testing (impatto, Resistenza al calore); Iso 9001 certified. | 99.7% Tasso privo di difetti; ensures PS parts meet your industry’s quality standards (PER ESEMPIO., FDA per l'imballaggio alimentare). |
The PS Injection Molding Process: Step-by-Step Excellence
PS’s unique melting and cooling properties require a optimized process to avoid defects like warping or cloudiness. Our workflow ensures consistent quality while maximizing efficiency.
Fare un passo 1: Preparazione del materiale
- Pellet Selection: Choose between general-purpose PS (GPPS, per chiarezza), high-impact PS (FIANCHI, per la tenacità), or foam PS (EPS, for insulation).
- Additive Blending: Mix PS pellets with additivi (UV stabilizers for outdoor use, colorants for branded parts, rubber modifiers for impact resistance).
- Asciugatura: PS absorbs minimal moisture, but we dry pellets at 60–70°C for 1–2 hours to prevent surface defects (PER ESEMPIO., bubbles in transparent parts).
Fare un passo 2: Mold Design
- Clarity Considerations: Molds for transparent PS parts have polished surfaces to maintain clarity (no scratches or texture that reduces light transmittance).
- Cooling Optimization: Molds include uniform cooling channels to prevent warping—critical for thin-walled PS parts (PER ESEMPIO., confezione).
- Prototype Testing: We 3D-print mold prototypes first to validate design (reduces costly revisions and ensures part functionality).
Fare un passo 3: Injection Parameters (Critical for PS)
PS’s low melting point and viscosity require precise parameter tuning. Below are our standard settings for GPPS (the most common PS grade):
| Parametro | Ideal Range for GPPS | Scopo |
| Barrel Temperature | 160–200°C | Melts PS evenly without degradation (higher temps cause yellowing). |
| Pressione di iniezione | 40–100 MPa | Fills mold cavities completely (critical for intricate details like packaging logos). |
| Tempo di raffreddamento | 10–25 seconds | Prevents warping; balances speed and part stability (shorter for thin parts). |
Fare un passo 4: Post-Molding Operations
After demolding, PS parts may undergo:
- Taglio: Rimozione della plastica in eccesso (flash) with automated tools (critical for clear parts to maintain aesthetics).
- Assemblaggio: Joining parts via adhesives or snap-fits (for complex components like consumer product enclosures).
Ispezione: Final QC checks for clarity, precisione dimensionale, e qualità della superficie (100% inspection for medical or food-contact parts).
Materiali: Choosing the Right PS for Your Project
Not all PS is the same—selecting the right grade ensures your parts meet performance, costo, and aesthetic goals. We offer a full range of PS materials, plus recycled options.
Types of PS for Injection Molding
| PS Type | Key Traits | Applicazioni comuni |
| Ps (GPPS) | Chiaro, rigido, basso costo (≈1.20–1.80/kg). | Confezione (Contenitori di cibo, pacchetti di blister), electronic casings (Remoti controlli), toys. |
| PS ad alto impatto (FIANCHI) | Difficile, resistente all'impatto (forza di impatto: 10–20 kJ/m²), opaque. | Beni di consumo (parti di elettrodomestici, macchine giocattolo), Assesso interno automobilistico, Alloggi per dispositivi medici. |
| Expandable PS (EPS) | Foam-like, leggero (densità: 0.015–0.04 g/cm³), excellent insulation. | Confezione (protective inserts for electronics), disposable food containers, construction insulation. |
| Styrene-Acrylonitrile (SAN) | Resistente al calore (fino a 90 ° C.), resistente ai prodotti chimici, clear. | Imballaggio alimentare (coffee cups), contenitori cosmetici, componenti del dispositivo medico. |
Material Selection Tips
- Prioritize clarity: For visible packaging (PER ESEMPIO., pacchetti di blister), choose GPPS or SAN.
- Need toughness?: Opt for HIPS (ideal for parts prone to drops, like toy cars or appliance handles).
Embrace sustainability: Nostro recycled PS (rPS) is made from post-consumer waste (PER ESEMPIO., old packaging) and retains 85% of the performance of virgin PS—perfect for eco-friendly brands.
Trattamento superficiale: Enhancing PS Parts’ Aesthetics & Funzionalità
PS’s natural surface is smooth (especially GPPS) but can be modified to improve grip, Branding, o durata. We offer five core surface treatments tailored to PS’s properties:
| Trattamento | Processo | Benefici |
| Finitura superficiale | Lucidare (for GPPS to boost clarity) o sabbiatura (for matte finishes). | Migliora l'estetica (clear parts look more premium) or reduces glare (PER ESEMPIO., electronic casings). |
| Tessitura | Aggiunta di motivi (a costole, dotted, o soft-touch) to the mold surface. | Migliora la presa (PER ESEMPIO., toy handles, manopole dell'appliance) or hides fingerprints (PER ESEMPIO., beni di consumo). |
| Rivestimento | Applicazione di uno strato sottile (PER ESEMPIO., acrilico, poliuretano) to the PS surface. | Boosts scratch resistance (critical for clear packaging) or UV protection (parti all'aperto). |
| Pittura | Spray-painting with PS-compatible primers (prevents paint peeling). | Colori personalizzati per il marchio (PER ESEMPIO., parti giocattoli, rivestimento automobilistico) or opaque finishes (for HIPS). |
| Stampa | Digital printing or screen printing for logos, Etichette, or instructions. | Chiaro, durable markings (PER ESEMPIO., food packaging expiration dates, medical device labels). |
Vantaggi: Why Choose PS Injection Molding?
PS injection molding offers a unique blend of cost savings, estetica, and versatility—making it a top choice for manufacturers across industries.
Key Advantages of PS Injection Molding
- Costo-efficacia: PS is one of the cheapest thermoplastics (GPPS costs 1.20–1.80/kg), and injection molding’s high volume drives unit costs down to 0.05–0.30 per part (ideal for high-volume items like packaging).
- Clarity and Transparency: GPPS has 90% light transmittance—cheaper than glass or acrylic, making it perfect for packaging where product visibility matters (PER ESEMPIO., candy, elettronica).
- Personalizzazione: Molds can create complex shapes (PER ESEMPIO., intricate toy parts, custom packaging), and PS accepts additives for color, Resistenza UV, or toughness.
- Leggero: PS’s density (1.04–1,06 g/cm³) È 50% less than glass and 30% less than ABS—reducing shipping costs and improving user comfort (PER ESEMPIO., lightweight toy parts).
- Ease of processing: PS melts at low temperatures (saves energy) and has low viscosity (fills small mold details easily)—reducing production time and defects.
PS vs. Other Common Injection Molding Plastics (for Clarity-Critical Applications)
| Materiale | Costo (al kg) | Light Transmittance | Forza di impatto (KJ /) | Meglio per |
| GPPS | 1.20–1.80 | 90% | 1.5–2.5 | Low-cost clear packaging, toys. |
| Acrilico (PMMA) | 2,50–3.50 | 92% | 2.0–3.0 | High-end clear parts (PER ESEMPIO., Visualizza casi). |
| ANIMALE DOMESTICO | 1.80–2.50 | 88% | 5.0–7.0 | Durable clear packaging (PER ESEMPIO., bottiglie d'acqua). |
Industria delle applicazioni: Where PS Injection Molding Shines
PS’s versatility—from clarity to toughness—makes it indispensable in five key industries. Below are real-world use cases and our tailored solutions:
| Industria | Common PS Parts | Le nostre soluzioni |
| Confezione | Blister packs, Contenitori di cibo, protective inserts (EPS), cosmetic jars. | GPPS for clear packaging; EPS for shock-absorbent inserts; FDA-compliant grades for food contact. |
| Prodotti di consumo | Parti giocattoli, appliance handles (FIANCHI), Remoti controlli, disposable cutlery. | HIPS for impact-resistant parts; GPPS for colorful, clear toy components; custom tooling for unique shapes. |
| Dispositivi medici | Disposable syringes (SAN), provette, Alloggi per dispositivi (FIANCHI). | Sterilizable PS grades; ISO 13485-certified processes; precision molding for small, parti accurate. |
| Automobile | Rivestimento interno (FIANCHI), cup holders, pannelli delle porte, speaker grilles. | HIPS for impact resistance; UV-stabilized additives for long-term durability; custom colors to match car interiors. |
| Elettronica | Remote control casings (GPPS), cornici per laptop (FIANCHI), LED diffusers. | Precision molding for tight-fitting parts; flame-retardant additives (meets UL94 standards); textured finishes to hide fingerprints. |
Casi studio: Our PS Injection Molding Success Stories
We’ve helped clients across industries overcome challenges with our PS injection molding services. Below are three standout projects:
Caso di studio 1: Clear GPPS Blister Packs for a Cosmetics Brand
- Sfida: A cosmetics brand needed 500,000 blister packs that were clear (to showcase products), basso costo, and durable enough to withstand shipping.
- Soluzione: We used GPPS (90% chiarezza) with a scratch-resistant coating and custom tooling to match the brand’s logo and product shapes. Molds had 32 cavities for high-volume production.
- Risultati: Blister packs reduced packaging costs by 20% contro. acrylic alternatives; 99.8% Consegna puntuale; customer feedback praised the clear visibility of products.
Caso di studio 2: Impact-Resistant HIPS Toy Parts for a Toy Manufacturer
- Sfida: A toy company needed 300,000 toy car bodies that were tough (to withstand drops), colorato, e leggero.
- Soluzione: We used HIPS (forza di impatto: 15 KJ /) with color additives and custom tooling for intricate designs (PER ESEMPIO., Wells Wheel, Loghi). In-line QC checked for cracks and color consistency.
- Risultati: Toy parts had 0 breakage in drop tests (from 1.5m); production time reduced by 15% contro. their previous supplier; cost per part lowered by 12%.
Caso di studio 3: Sterilizable SAN Medical Test Tubes for a Lab Supply Company
- Sfida: A lab supply company needed 100,000 test tubes that were clear, heat-sterilizable (up to 121°C), e resistente agli agenti chimici (to acids/bases).
- Soluzione: We used SAN (resistente al calore, chiaro) with FDA-compliant additives and precision molding (± 0,005 mm tolleranza) to ensure uniform tube diameter. Post-molding sterilization validation was conducted.
Risultati: Test tubes met ISO 13485 standard; 100% passed sterilization tests; consegnato 1 week ahead of schedule—helping the client meet urgent lab demand.
Why Choose Us for Your PS Injection Molding Needs?
With so many PS injection molding suppliers, La tecnologia Yigu si distingue per la nostra esperienza, qualità, and commitment to client success. Here’s why you should partner with us:
- Competenza: 12+ years specializing in PS injection molding—our engineers know how to optimize processes for PS’s unique traits (PER ESEMPIO., preventing yellowing in GPPS, boosting impact strength in HIPS).
- Garanzia di qualità: Iso 9001 e iso 13485 certificazioni; 99.7% Tasso privo di difetti; 100% Ispezione per parti critiche (PER ESEMPIO., medical test tubes, imballaggio alimentare).
- Assistenza clienti: Dedicated account managers who work with you from design to delivery; Consultazioni di progettazione gratuite (to optimize your part for PS molding); 24/7 support for urgent orders.
- Innovazione: Investiamo 7% di entrate in r&D—recent breakthroughs include bio-based PS (made from plant-based styrene) and high-clarity rPS (recycled PS with 88% trasmittanza della luce).
Sostenibilità: 40% of our PS materials are recycled (rPS); our factories use energy-efficient machines (Ridurre le emissioni di carbonio di 28%); we offer a take-back program for old PS parts to recycle into new products.