Foldable Bathtub Mold Introduction - Yige Molds Professional Solution

I. Product Overview

The foldable bathtub mold is professional injection mold equipment from Yige Molds, specialized in manufacturing foldable bathtub housings and components. The foldable bathtub connects the bathtub top and bottom parts with flexible rubber strips, achieving quick folding through injection molding. When folded, the volume is only 1/3 of its expanded state, significantly saving storage and transportation space. 

II. Yige Molds Core Design Advantages

1. Precision Structural Design

Yige Molds uses a detachable folding module structure, with each module connected by high-precision hinge components, enabling multi-directional folding. The main body of the mold features a multi-layer composite cavity structure. The inner layer is made of wear-resistant mold steel to ensure long-term production stability. The outer wrapping layer employs a gradient thickness design, ensuring tight adhesion between the wrapping layer and the tub body, preventing the wrapping layer from detaching during demolding.

2. Efficient Runner System

Yige Molds is equipped with a hot runner balanced flow system, allowing the molten material to fill every corner of the mold cavity evenly. This ensures uniform wall thickness of the bathtub product, avoiding insufficient strength due to localized thickness variations. The multi-point gating mechanism simultaneously injects material into the flexible rubber strip molding area and the bathtub bottom footpad structure, reducing the flow path of the injection material inside the mold and minimizing material waste.

3. Premium Material Selection

Yige Molds use premium mold steels including P20, 718, 2738, S136, and NAK80. Core materials employ H13ESR electroslag remelting steel with a hardness of HRC48-52, improving thermal fatigue life by 40%. Slider components use Japanese Hitachi mold steel SLD-MAGIC, vacuum heat-treated to HRC60-62. The hot runner system uses German Yaba high-temperature alloys, capable of withstanding molten material temperatures of 420°C for extended periods.

III. Yige Molds Technical Advantages

1. Ultra-Precision Processing Technology

Yige Molds utilizes five-axis machining centers for precision processing, controlling cavity accuracy within ±0.005mm. Key components are processed using slow wire EDM with an accuracy of ±0.002mm. Mirror EDM achieves a surface roughness of Ra ≤ 0.1μm. Three-coordinate measurement ensures critical dimensions achieve CPK ≥ 1.67, guaranteeing precise product dimensions and smooth surfaces.

2. Efficient Production System

Yige Molds employs hot runner technology, with a scrap rate ≤ 0.8%, saving 15-20% energy compared to traditional cold runner technology. Servo motor drives reduce energy consumption by 42%, and the cooling water recycling rate reaches 95%.

3. Precision Venting System

The mold is equipped with a multi-stage venting structure, including cavity vent holes, slider vent grooves, and ejector pin vent channels, ensuring smooth gas discharge during the injection process and avoiding defects such as air pockets or scorching in the product. The venting system uses a labyrinth design to prevent molten material overflow, ensuring excellent surface finish of the product.

IV. Yige Molds Manufacturing Process

1. Design Process

Yige Molds uses mold flow analysis to predict and eliminate potential defects. Structural simulation ensures a mold life ≥ 1.5 million cycles. The virtual trial molding system reduces actual trial molding times by 60%. The standard mold base library offers over 500 specifications. The intelligent parts library provides instant access to over 3,000 standard parts. Parametric design reduces the design time for similar molds by 70%.

2. Precision Manufacturing Process

Yige Molds uses five-axis machining centers with a positioning accuracy of 0.003mm. Slow wire EDM achieves an accuracy of ±0.002mm, and mirror discharge achieves a surface finish of Ra0.05μm. Surface treatments include diamond-like carbon coating with a hardness of HV3000-5000, nano-composite coating reducing the friction coefficient to 0.08, and PVD gradient coating reducing demolding force by 30%.

3. Mold Structure Optimization

The mold uses detachable auxiliary molding protrusion components. During injection, the bathtub top and bottom parts are placed into the mold, and adhesive injection connects all three parts. The circumferential surface on the side of the forming insert and the inner circumferential surface of the bathtub forming groove create the flexible rubber strip molding area, ensuring a secure connection between the flexible rubber strips and the tub body.

V. Product Performance Standards

1. Material Performance

The produced foldable bathtub uses food-grade PP and TPE laminated composite material. PP ensures the rigidity and load-bearing capacity of the tub, capable of supporting an adult's weight. The TPE layer offers high elasticity, slip resistance, and a soft, comfortable feel upon contact with human skin. It also possesses excellent anti-aging properties, resisting cracking and deformation in long-term humid environments.

2. Durability Performance

Products manufactured with the mold undergo 100,000-fold fatigue testing, showing no significant wear or structural damage at the folding points, ensuring the stability of the folding function during long-term use. The product has good temperature resistance, withstanding temperature changes from -20°C to 80°C, making it suitable for various scenarios like cold and warm baths.

3. Safety Performance

The wrapping layer uses environmentally friendly materials that are odorless and free of harmful substance release, passing multiple international environmental certifications such as ROHS and REACH, safeguarding user health and safety during use. The tub edges feature a rounded transition design to prevent injuries from sharp corners.

VI. Yige Molds Service System

1. Technical Consulting Services

Yige Molds provides free design reviews, delivering product DFM (Design for Manufacturability) analysis reports. It offers material selection advice and cost optimization solutions, along with estimated mold life and production efficiency analysis. 24-hour online technical support is available, with a 4-hour response plan for emergencies. On-site service engineers arrive within 48 hours.

2. Mold Delivery Guarantee

Yige Molds provides a standard delivery process, offering a detailed project schedule after contract signing. Weekly progress reports with photos/video updates are provided. Trial samples are delivered by express with synchronized test reports. Mold acceptance includes 22 inspection items. Trial production involves continuous 500-cycle stability testing. A complete mold usage and maintenance manual is provided.

3. After-sales Service System

Yige Molds provides a lifetime maintenance commitment, with free lifetime technical consultation for molds. Wear parts are supplied at cost price. Regular free mold health checks are performed. Upgrade and renovation services include mold performance optimization upgrades, product modification mold renovations, and automation support solution design.