Our Polyvinyl Chloride PVC Injection Molding Services
Elevate your production with Yigu Technology’s premium Chlorure de polyvinyle (PVC) Services de moulage par injection—where cutting-edge technology, precision craftsmanship, and custom solutions converge. Whether you need high-volume construction components, flame-retardant electrical parts, or durable consumer products, Nous livrons rentable, chemically resistant PVC parts tailored to your industry’s unique demands.
What Is Polyvinyl Chloride (PVC) Moulage par injection?
Chlorure de polyvinyle (PVC) is one of the world’s most widely used thermoplastics, composed of vinyl chloride monomers. It stands out for its adaptability—easily modified with additives to suit diverse applications. Moulage par injection is a manufacturing process that melts plastic pellets, injects the molten material into a custom mold, and cools it to form a finished part. Ensemble, PVC injection molding creates consistent, high-performance components for sectors ranging from construction to medical devices.
Définitions clés & Description du processus
| Terme | Définition |
| Chlorure de polyvinyle (PVC) | A versatile thermoplastic that can be rigid or flexible, depending on additives; known for durability and flame resistance. |
| Moulage par injection | A cyclic process: PVC pellets → melted → injected into mold cavity → cooled → ejected (repeats for mass production). |
| Cavité de moule | The hollow space in a mold that shapes the final PVC part; can have 1–64 cavities for efficient high-volume production. |
Material Characteristics of PVC
PVC’s unique traits make it ideal for injection molding:
- Dual Form: Can be rigid (used for pipes, cadres de fenêtre) ou flexible (used for hoses, tubes médicaux) with plasticizers.
- Retard de flamme: Naturally resistant to fire (requires no extra additives for basic flame protection).
- Résistance chimique: Non affecté par la plupart des acides, alcalis, et solvants (critical for industrial and medical use).
Rentabilité: Raw PVC is affordable, making it a budget-friendly choice for large-scale projects.
Nos capacités: Delivering Excellence in PVC Injection Molding
À la technologie Yigu, notre PVC 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.
Présentation des capacités de base
| Capacité | Détails | Avantages pour vous |
| Technologie de pointe | 25+ CNC injection molding machines (force de serrage: 100–800 tonnes) with smart monitoring systems. | Real-time quality control; 20% faster production than standard machines. |
| Outillage personnalisé | Conception et fabrication de moisissures internes (steel molds for rigid PVC, aluminum for flexible PVC prototypes). | Molds tailored to your part’s geometry; lead times as short as 2–3 weeks. |
| Moulage de précision | Molding tolerance of ±0.005mm; in-line laser measurement for dimensional accuracy. | Ideal for intricate parts (Par exemple, connecteurs électriques, composants de dispositifs médicaux). |
| Production à volume élevé | Automated assembly lines and 24/7 opération; capacity for 600,000+ PVC parts/month. | Lower unit costs for bulk orders; on-time delivery even for large projects. |
The PVC Injection Molding Process: Step-by-Step Precision
PVC’s unique melting properties (it decomposes at high temperatures) require a carefully optimized process. Our workflow ensures consistent quality while protecting PVC’s integrity.
Étape 1: Préparation des matériaux
- Sélection de granulés: Choose between rigid PVC (no plasticizers) or flexible PVC (with 10–40% plasticizers like phthalates).
- Additive Blending: Mix PVC pellets with additifs (stabilizers to prevent decomposition, UV inhibitors for outdoor use, colorants).
- Séchage: PVC absorbs minimal moisture, but we dry pellets at 60–70°C for 1–2 hours to avoid surface defects (Par exemple, trous d'épingle).
Étape 2: Conception de moisissure
- Compatibilité des matériaux: Molds for rigid PVC use cooling channels to prevent warping; molds for flexible PVC have smoother surfaces to avoid sticking.
- Test de prototype: We 3D-print mold prototypes first to validate design—reducing costly revisions later.
Étape 3: Injection Parameters (Critical for PVC)
PVC is sensitive to heat, so precise parameters are non-negotiable. Below are our standard settings for rigid PVC:
| Paramètre | Ideal Range | But |
| Température du baril | 160–190°C | Melts PVC without decomposition (higher temps cause toxic fumes). |
| Pression d'injection | 80–150 MPA | Remplit complètement les cavités des moisissures (critical for thin-walled parts like electrical casings). |
| Temps de refroidissement | 20–50 seconds | Empêche la déformation; longer for thick rigid PVC parts. |
Étape 4: Opérations post-moulage
Après éjection, Les pièces subissent:
- Garniture: Retirer l'excès de plastique (éclair) avec des outils automatisés.
- Débarquant: Smoothing sharp edges (critical for consumer products and medical devices).
Inspection: Final checks for dimensional accuracy and surface quality.
Matériels: Choosing the Right PVC for Your Project
PVC’s versatility comes from its ability to be modified into different grades. Selecting the right type ensures your parts meet performance, sécurité, and cost goals.
Types of PVC for Injection Molding
| PVC Type | Propriétés clés | Applications communes |
| PVC rigide (RPVC) | Rigide, résistance à la traction élevée (50 MPA), excellent impact resistance. | Construction (cadres de fenêtre, tuyaux), garniture automobile, electrical casings. |
| PVC flexible (FPVC) | Bendable, élastique (elongation up to 300%), resistant to cracking. | Dispositifs médicaux (tubes, seringues), biens de consommation (jouets, tuyaux), automotive gaskets. |
| Foamed PVC | Léger (densité: 0.6–0.8 g/cm³), sound-absorbent. | Interior design (panneaux muraux), conditionnement (protective inserts). |
| Recycled PVC (rPVC) | 75–85% of the strength of virgin PVC; eco-friendly and cost-effective. | Construction (escrime, decking), non-critical consumer goods (bacs de stockage). |
Key Material Properties of PVC
| Biens | PVC rigide | PVC flexible |
| Densité (g / cm³) | 1.3–1.45 | 1.1–1.3 |
| Melting Range (° C) | 160–190 | 140–170 |
| Retard de flamme | Excellent (UL94 V0 rating) | Bien (UL94 V2 rating with additives) |
| Résistance chimique | Haut (résiste aux acides, huiles, solvants) | Haut (résiste à l'eau, produits chimiques légers) |
Traitement de surface: Enhancing PVC Parts’ Function and Aesthetics
PVC’s natural surface is smooth but can be modified to improve grip, durabilité, or branding. We offer five proven finition de surface techniques for PVC parts:
| Traitement | Procéder | Avantages |
| Texturation | Ajout de modèles (mat, à côte, or sandblasted) to the mold surface. | Améliore l'adhérence (Par exemple, poignées d'outils), cache des rayures (Par exemple, biens de consommation). |
| Revêtement | Appliquer une couche mince (Par exemple, polyuréthane, acrylique) à la surface de la pièce. | Boosts UV resistance (for outdoor parts like window frames) ou résistance chimique. |
| Peinture | Spray-painting with PVC-compatible primers (Pour assurer l'adhésion). | Custom colors for branding (Par exemple, garniture automobile, jouets). |
| Impression | Digital or screen printing for logos, étiquettes, or instructions. | Clair, durable markings (Par exemple, dispositifs médicaux, composants électriques). |
| Polissage | Buffing the surface to a high gloss. | Creates a premium look (Par exemple, biens de consommation haut de gamme, pièces décoratives). |
Avantages: Why Choose PVC Injection Molding?
PVC injection molding offers a unique mix of performance, Économies de coûts, and versatility—making it a top choice for manufacturers across industries.
Key Advantages of PVC Injection Molding
- Durabilité: PVC parts last 10–50 years (rigid PVC) or 5–15 years (flexible PVC) dans des environnements difficiles (Par exemple, outdoor construction, industrial settings).
- Résistance chimique: PVC resists acids, alcalis, and solvents—ideal for medical devices (stérilisable) et parties industrielles (exposé aux produits chimiques).
- Personnalisation: Easily modified with additives to be rigid/flexible, ignifuge, or UV-resistant; molds can create complex shapes (Par exemple, connecteurs électriques).
- Rentabilité: Raw PVC costs 1.00–1.80/kg (20% cheaper than PP), and injection molding drives unit costs down to 0.10–0.50 per part for high volumes.
- Retard de flamme: Naturally resistant to fire (meets UL94 V0 standards without extra additives)—critical for electrical components and building materials.
PVC vs. Other Common Injection Molding Plastics
| Matériel | Coût (par kg) | Flame Resistance | Résistance chimique | Mieux pour |
| PVC | 1.00–1.80 | Excellent (UL94 V0) | Haut | Ignifuge, chemical-resistant parts. |
| Pp | 1.20–2.00 | Pauvre (needs additives) | Haut | Léger, cost-sensitive parts. |
| Abs | 2.50–3.50 | Équitable (needs additives) | Modérer | Rigide, high-gloss parts. |
Industrie des applications: Where PVC Injection Molding Excels
PVC’s adaptability (rigid/flexible, ignifuge, résistant aux produits chimiques) makes it indispensable in five key industries.
Applications spécifiques à l'industrie & Nos solutions
| Industrie | Common PVC Parts | Our Tailored Solutions |
| Construction | Cadres de fenêtre, raccords de tuyaux, poignées de porte, fencing. | Rigid PVC molding; UV-resistant additives; compliance with building codes (Par exemple, ASTM D1784). |
| Automobile | Garniture de tableau de bord, isolation par fil, joints de porte, floor mats. | Flexible PVC for gaskets; rigid PVC for trim; flame-retardant grades (rencontre ISO 3795). |
| Produits de consommation | Pièces de jouets, poignées d'outils, shower curtains, storage bins. | BPA-free flexible PVC (jouets); textured rigid PVC (poignées d'outils); custom colors. |
| Dispositifs médicaux | IV tubing, barils de seringue, oxygen masks, Poignées des instruments chirurgicaux. | Sterilizable flexible PVC; ISO 10993-certified processes (biocompatibilité). |
| Composants électriques | Isolation par câble, switch casings, circuit board holders, junction boxes. | Flame-retardant rigid PVC; high dielectric strength (meets IEC 60695). |
Études de cas: Our PVC Injection Molding Success Stories
We’ve helped clients across industries overcome unique challenges with our PVC injection molding services. Below are three standout projects:
Étude de cas 1: Rigid PVC Window Frames for a Construction Company
- Défi: A builder needed 50,000 window frames that were durable, Résistant aux UV, et rentable (to replace aluminum frames).
- Solution: We used rigid PVC with UV stabilizers and custom tooling to match the builder’s design. Molds included drainage channels to prevent water damage.
- Résultats: Frames lasted 30+ années (contre. 15 ans pour l'aluminium); 25% lower cost than aluminum; 100% compliance with local building codes.
Étude de cas 2: Flexible PVC IV Tubing for a Medical Device Maker
- Défi: Une entreprise médicale nécessaire 200,000 IV tubings that were flexible, stérilisable (via autoclaving), and BPA-free.
- Solution: We used phthalate-free flexible PVC with a smooth inner surface (to prevent clogs) and molded tubings with precise diameter (± 0,1 mm).
- Résultats: Tubings met ISO 10993 Normes de biocompatibilité; 0 défaut 3 years of production; 15% faster delivery than the client’s previous supplier.
Étude de cas 3: Flame-Retardant PVC Switch Casings for an Electrical Brand
- Défi: An electrical brand needed switch casings that passed UL94 V0 flame tests and fit standard electrical boxes.
- Solution: We used rigid PVC with no extra flame retardants (PVC’s natural trait) and custom molds to match the box dimensions.
Résultats: Casings passed all safety tests; 30% lower material cost than ABS alternatives; on-time delivery rate of 99.8%.
Why Choose Us for Your PVC Injection Molding Needs?
With so many PVC injection molding suppliers, La technologie Yigu se démarque de notre expertise, qualité, and commitment to client success:
- Compétence: 10+ years specializing in PVC injection molding—our engineers know how to avoid PVC’s common pitfalls (Par exemple, decomposition, gauchissement).
- Assurance qualité: OIN 9001 et ISO 13485 certifications; 99.6% taux sans défaut; 100% inspection of critical parts (Par exemple, dispositifs médicaux).
- Service client: Gestionnaires de compte dédiés; 24/7 soutien; Consultations de conception gratuites (to optimize your part for PVC molding).
- Innovation: Nous investissons 6% de revenus en r&D—recent breakthroughs include bio-based PVC (made from plant-based vinyl chloride) and plasticizer-free flexible PVC.
Durabilité: 35% of our materials are recycled PVC (rPVC); our factories use energy-efficient machines (réduire les émissions de carbone par 22%); we offer recycling programs for old PVC parts.