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Customization of Household Medical Instrument Housing Molds - Precision Solutions and Compliance Assurance
Household medical instrument housings directly affect equipment cleanliness, safety, and durability. Mold customization must balance medical-grade standards and mass production requirements. Starting from industry pain points, this article provides a full-process precision mold solution. Injection molding
I. Core Issues: Customization Difficulties of Household Medical Housing Molds
Medical housings require scratch-free, high-cleanliness, and precise dimensional (tolerance ≤±0.03mm) properties. They must also be compatible with medical-grade plastics such as PP and PC, and the molds need to adapt to sterilization processes. Ordinary molds are prone to corrosion, polishing defects, and unstable mass production.
II. Problem Analysis: Root Cause and Core Demand Breakdown
The root causes of pain points focus on three aspects: first, insufficient corrosion resistance of mold materials, failing to adapt to medical plastics; second, design not following international standards, leading to assembly deviations; third, lack of simulation verification, resulting in flow marks and shrinkage during mass production. Customers' core demands are compliance, high precision, long service life, and fast delivery.
III. Solutions: Full-Process Precision Customization System
1. Standardized Design and Simulation
Adhere to DEM, HASCO, MISUMI, and MoldPro standards, supporting drawing formats including STP, STEP, X_T, DWG, and DXF. Modeling is conducted using NX, CAD, PROE, and SOLIDWORKS, combined with MOLDFLOW for filling simulation to avoid defects in advance.
2. Precise Material Selection (with Table)
|
Mold Material |
Characteristics |
Compatible Plastics |
Application Scenarios |
|
S136 |
Corrosion-resistant mirror finish, polishing up to 12,000 grit |
PC, PMMA |
Transparent Housings |
|
718/738 |
Pre-hardened, easy to process, service life over 500,000 cycles |
PP, ABS |
General-Purpose Housings |
|
2316/2083 |
Excellent rust resistance, suitable for humid and hot environments |
PPSU |
Sterilizable Housings |
|
Beryllium Copper |
Fast heat conduction, improving shrinkage |
All Medical-Grade Plastics |
Complex-Structure Housings |
3. Delivery and Testing Assurance
Delivery Terms: EXW (Ex Works), molds are packaged in fumigated wooden cases; delivery cycle is 25-35 days, and T1 testing takes only 3-4 days for rapid iteration and optimization. Injection materials adopt FDA-certified medical-grade PP, PC, and ABS, supporting sterilization treatment.
IV. Customization Results: Dual Compliance with Standards and Efficiency
The mold precision reaches ±0.02mm, with surface roughness Ra≤0.05μm, meeting medical cleanliness standards. Molds made of S136 have a service life exceeding 800,000 cycles, and the mass production yield is stably above 99.2%, balancing the safety of household medical equipment and mass production economy.
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