Our Polyvinyl Chloride PVC Injection Molding Services
Elevate your production with Yigu Technology’s premium Cloruro de polivinilo (CLORURO DE POLIVINILO) Injection Molding services—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, entregamos rentables, chemically resistant PVC parts tailored to your industry’s unique demands.
What Is Polyvinyl Chloride (CLORURO DE POLIVINILO) Moldura de inyección?
Cloruro de polivinilo (CLORURO DE POLIVINILO) 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. Moldura de inyección is a manufacturing process that melts plastic pellets, injects the molten material into a custom mold, and cools it to form a finished part. Juntos, PVC injection molding creates consistent, high-performance components for sectors ranging from construction to medical devices.
Definiciones clave & Descripción del proceso
| Término | Definición |
| Cloruro de polivinilo (CLORURO DE POLIVINILO) | A versatile thermoplastic that can be rigid or flexible, depending on additives; known for durability and flame resistance. |
| Moldura de inyección | A cyclic process: PVC pellets → melted → injected into mold cavity → cooled → ejected (repeats for mass production). |
| Mold Cavity | 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, marcos de ventana) o flexible (used for hoses, tubo médico) with plasticizers.
- Retraso de la llama: Naturally resistant to fire (requires no extra additives for basic flame protection).
- Resistencia química: No afectado por la mayoría de los ácidos, alcalino, y solventes (critical for industrial and medical use).
Cost-Efficiency: Raw PVC is affordable, making it a budget-friendly choice for large-scale projects.
Nuestras capacidades: Delivering Excellence in PVC Injection Molding
En la tecnología yigu, nuestro 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.
Descripción general de las capacidades básicas
| Capacidad | Detalle | Beneficios para ti |
| Tecnología avanzada | 25+ Máquinas de moldeo por inyección CNC (fuerza de sujeción: 100–800 tons) with smart monitoring systems. | Real-time quality control; 20% faster production than standard machines. |
| Herramientas personalizadas | In-house mold design and fabrication (steel molds for rigid PVC, aluminum for flexible PVC prototypes). | Moldes adaptados a la geometría de su parte; lead times as short as 2–3 weeks. |
| Moldura de precisión | Molding tolerance of ±0.005mm; in-line laser measurement for dimensional accuracy. | Ideal for intricate parts (P.EJ., conectores eléctricos, Componentes del dispositivo médico). |
| Producción de alto volumen | Automated assembly lines and 24/7 operación; capacidad para 600,000+ PVC parts/month. | Lower unit costs for bulk orders; on-time delivery even for large projects. |
The PVC Injection Molding Process: Precisión paso a paso
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.
Paso 1: Preparación de material
- Pellet Selection: Choose between rigid PVC (no plasticizers) or flexible PVC (with 10–40% plasticizers like phthalates).
- Additive Blending: Mix PVC pellets with aditivos (stabilizers to prevent decomposition, UV inhibitors for outdoor use, colorantes).
- El secado: PVC absorbs minimal moisture, but we dry pellets at 60–70°C for 1–2 hours to avoid surface defects (P.EJ., pinholes).
Paso 2: Mold Design
- Compatibilidad de material: Molds for rigid PVC use cooling channels to prevent warping; molds for flexible PVC have smoother surfaces to avoid sticking.
- Prototype Testing: We 3D-print mold prototypes first to validate design—reducing costly revisions later.
Paso 3: Parámetros de inyección (Critical for PVC)
PVC is sensitive to heat, so precise parameters are non-negotiable. Below are our standard settings for rigid PVC:
| Parámetro | Ideal Range | Propósito |
| Temperatura del barril | 160–190°C | Melts PVC without decomposition (higher temps cause toxic fumes). |
| Inyección | 80–150 MPA | Fills mold cavities completely (critical for thin-walled parts like electrical casings). |
| Tiempo de enfriamiento | 20–50 segundos | Prevents warping; longer for thick rigid PVC parts. |
Paso 4: Operaciones posteriores al moldeo
Después de la expulsión, las piezas sufren:
- Guarnición: Eliminar el exceso de plástico (destello) with automated tools.
- Desacuerdo: Smoothing sharp edges (critical for consumer products and medical devices).
Inspección: Final checks for dimensional accuracy and surface quality.
Materiales: 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, seguridad, and cost goals.
Types of PVC for Injection Molding
| PVC Type | Propiedades clave | Aplicaciones comunes |
| PVC rígido (RPVC) | Rígido, alta resistencia a la tracción (50 MPA), excellent impact resistance. | Construcción (marcos de ventana, tubería), adorno automotriz, electrical casings. |
| PVC flexible (FPVC) | Bendable, elástico (elongation up to 300%), resistant to cracking. | Dispositivos médicos (tubería, jeringas), bienes de consumo (juguetes, manguera), automotive gaskets. |
| Foamed PVC | Ligero (densidad: 0.6–0.8 g/cm³), sound-absorbent. | Interior design (paneles de pared), embalaje (protective inserts). |
| Recycled PVC (rPVC) | 75–85% of the strength of virgin PVC; eco-friendly and cost-effective. | Construcción (esgrima, decking), non-critical consumer goods (contenedor de almacenamiento). |
Key Material Properties of PVC
| Propiedad | PVC rígido | PVC flexible |
| Densidad (gramos/cm³) | 1.3–1.45 | 1.1–1.3 |
| Melting Range (° C) | 160–190 | 140–170 |
| Retraso de la llama | Excelente (UL94 V0 rating) | Bien (UL94 V2 rating with additives) |
| Resistencia química | Alto (Resiste ácidos, aceites, solventes) | Alto (Resiste el agua, químicos suaves) |
Tratamiento superficial: Enhancing PVC Parts’ Function and Aesthetics
PVC’s natural surface is smooth but can be modified to improve grip, durabilidad, or branding. We offer five proven acabado superficial techniques for PVC parts:
| Tratamiento | Proceso | Beneficio |
| Textura | Agregar patrones (mate, acanalado, or sandblasted) to the mold surface. | Mejora el agarre (P.EJ., manijas de herramientas), esconderse (P.EJ., bienes de consumo). |
| Revestimiento | Applying a thin layer (P.EJ., poliuretano, acrílico) to the part surface. | Boosts UV resistance (for outdoor parts like window frames) o resistencia química. |
| Cuadro | Spray-painting with PVC-compatible primers (Para garantizar la adhesión). | Colores personalizados para la marca (P.EJ., adorno automotriz, juguetes). |
| Impresión | Digital or screen printing for logos, etiqueta, or instructions. | Claro, durable markings (P.EJ., dispositivos médicos, componentes eléctricos). |
| Pulido | Buffing the surface to a high gloss. | Creates a premium look (P.EJ., bienes de consumo de alta gama, piezas decorativas). |
Ventajas: Why Choose PVC Injection Molding?
PVC injection molding offers a unique mix of performance, ahorro de costos, and versatility—making it a top choice for manufacturers across industries.
Key Advantages of PVC Injection Molding
- Durabilidad: PVC parts last 10–50 years (rigid PVC) or 5–15 years (flexible PVC) En entornos duros (P.EJ., outdoor construction, industrial settings).
- Resistencia química: PVC resists acids, alcalino, and solvents—ideal for medical devices (esterilizable) y piezas industriales (expuesto a productos químicos).
- Personalización: Easily modified with additives to be rigid/flexible, retraso de las llamas, or UV-resistant; molds can create complex shapes (P.EJ., conectores eléctricos).
- Rentabilidad: 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.
- Retraso de la llama: 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
| Material | Costo (por kg) | Flame Resistance | Resistencia química | Mejor para |
| CLORURO DE POLIVINILO | 1.00–1.80 | Excelente (UL94 V0) | Rico | Retraso de las llamas, chemical-resistant parts. |
| PÁGINAS | 1.20–2.00 | Pobre (needs additives) | Rico | Ligero, cost-sensitive parts. |
| Abdominales | 2.50–3.50 | Justo (needs additives) | Moderado | Rígido, high-gloss parts. |
Industria de aplicaciones: Where PVC Injection Molding Excels
PVC’s adaptability (rigid/flexible, retraso de las llamas, resistente a los químicos) makes it indispensable in five key industries.
Aplicaciones específicas de la industria & Nuestras soluciones
| Industria | Common PVC Parts | Our Tailored Solutions |
| Construcción | Marcos de ventana, accesorios de tubería, manijas de las puertas, fencing. | Rigid PVC molding; UV-resistant additives; compliance with building codes (P.EJ., ASTM D1784). |
| Automotor | Adorno del tablero, aislamiento de alambre, juntas de puertas, floor mats. | Flexible PVC for gaskets; rigid PVC for trim; flame-retardant grades (se encuentra con ISO 3795). |
| Productos de consumo | Piezas de juguete, manijas de herramientas, shower curtains, storage bins. | BPA-free flexible PVC (juguetes); textured rigid PVC (manijas de herramientas); custom colors. |
| Dispositivos médicos | IV tubing, barriles de jeringa, oxygen masks, surgical instrument handles. | Sterilizable flexible PVC; ISO 10993-certified processes (biocompatibilidad). |
| Componentes eléctricos | Aislamiento de cable, switch casings, circuit board holders, junction boxes. | Flame-retardant rigid PVC; high dielectric strength (meets IEC 60695). |
Estudios de caso: 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:
Estudio de caso 1: Rigid PVC Window Frames for a Construction Company
- Desafío: A builder needed 50,000 window frames that were durable, Resistente a los rayos, y rentable (to replace aluminum frames).
- Solución: We used rigid PVC with UV stabilizers and custom tooling to match the builder’s design. Molds included drainage channels to prevent water damage.
- Resultados: Frames lasted 30+ años (VS. 15 Años para aluminio); 25% lower cost than aluminum; 100% compliance with local building codes.
Estudio de caso 2: Flexible PVC IV Tubing for a Medical Device Maker
- Desafío: Una empresa médica necesitaba 200,000 IV tubings that were flexible, esterilizable (via autoclaving), and BPA-free.
- Solución: We used phthalate-free flexible PVC with a smooth inner surface (to prevent clogs) and molded tubings with precise diameter (± 0.1 mm).
- Resultados: Tubings met ISO 10993 Normas de biocompatibilidad; 0 defectos en 3 years of production; 15% faster delivery than the client’s previous supplier.
Estudio de caso 3: Flame-Retardant PVC Switch Casings for an Electrical Brand
- Desafío: An electrical brand needed switch casings that passed UL94 V0 flame tests and fit standard electrical boxes.
- Solución: We used rigid PVC with no extra flame retardants (PVC’s natural trait) and custom molds to match the box dimensions.
Resultados: 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 tecnología de YIgu destaca para nuestra experiencia, calidad, and commitment to client success:
- Pericia: 10+ years specializing in PVC injection molding—our engineers know how to avoid PVC’s common pitfalls (P.EJ., decomposition, pandeo).
- Seguro de calidad: ISO 9001 e iso 13485 certificaciones; 99.6% tasa sin defectos; 100% inspection of critical parts (P.EJ., dispositivos médicos).
- Servicio al cliente: Gerentes de cuentas dedicados; 24/7 apoyo; Consultas de diseño gratuitas (to optimize your part for PVC molding).
- Innovación: Invertimos 6% de ingresos en r&D—recent breakthroughs include bio-based PVC (made from plant-based vinyl chloride) and plasticizer-free flexible PVC.
Sostenibilidad: 35% of our materials are recycled PVC (rPVC); our factories use energy-efficient machines (reduciendo las emisiones de carbono por 22%); we offer recycling programs for old PVC parts.