The Cornerstone of Precision Manufacturing — Full-Process Quality Control from CNC Mold Machining to Constant Temperature and Humidity Testing

In the manufacturing industry, product quality is the lifeline of a business. Shenzhen Hebron Technology Co., Ltd. has established a full-process quality control system spanning mold development, injection molding production, and finished product inspection, ensuring that every product meets international quality standards and satisfies the stringent requirements of global customers.

DFM Analysis: Ensuring Quality from the Design Source

DFM (Design for Manufacturing) is the first checkpoint in product quality control. During the early stages of product development, Hebron Technology's engineering team conducts comprehensive DFM analysis on product structural designs, evaluating the feasibility of mold manufacturing, the processability of injection molding, and the ease of assembly. This allows us to identify and resolve potential design issues in advance, avoiding subsequent mold modifications and production anomalies, significantly shortening the product development cycle.

Four Major Mold Processing Techniques

Mold precision directly determines product appearance quality and dimensional accuracy. Hebron Technology operates its own mold workshop, equipped with multiple sets of advanced CNC equipment:

CNC Milling Machines: Used for precision machining of mold cavities and cores, achieving machining accuracy of ±0.01mm, ensuring mold surface finish and dimensional precision.

Wire EDM (Electrical Discharge Machining): Utilizing the principle of spark wire cutting, suitable for machining precision holes, irregular contours, and hard materials, with machining accuracy reaching ±0.005mm, making it a key equipment for precision mold component processing.

Spark EDM: Used for machining closed cavities, complex three-dimensional cavities, and deep groove internal corners, unrestricted by workpiece hardness, capable of processing hardened steel and other high-hardness materials, with precision reaching ±0.005-0.010mm.

Precision Engraving CNC Equipment: Used for fine engraving and texture processing on mold surfaces, fulfilling personalized customization requirements for product appearance.

Through the coordinated operation of these four processing techniques, Hebron Technology can manufacture high-precision plastic molds, laying a solid foundation for product consistency and appearance quality.

Injection Molding Process Parameter Control

Injection molding is the critical step of transforming plastic raw materials into finished products. Hebron Technology owns multiple imported injection molding machines and strictly controls process parameters such as temperature, pressure, speed, and time during the injection molding process, ensuring dimensional accuracy and appearance quality for every product. Additionally, the injection molding workshop is equipped with robotic arms for automated part removal, minimizing the impact of human factors on product quality.

SMT Assembly and AOI Inspection

For portable fan products with electronic control functions, the quality of PCB circuit boards is crucial. Hebron Technology operates an SMT (Surface Mount Technology) assembly line, using high-precision pick-and-place machines for component mounting, and employs AOI (Automated Optical Inspection) equipment for 100% inspection of assembly quality, promptly detecting defects such as cold solder joints, missing solder, and component misalignment, ensuring the functional reliability of circuit boards.

Six Professional Laboratories and Reliability Testing

Hebron Technology operates 6 professional laboratories equipped with various advanced testing instruments, conducting comprehensive performance and reliability testing on products:

Single-Sided Vertical Balancing Machine: Used for dynamic balancing tests of fan blades, eliminating vibration and noise caused by blade imbalance.

Large Soundproof Room: Used for noise testing of fan products, simulating real usage environments and precisely measuring noise levels at different fan speeds.

2D Video Measuring System: Used for precision measurement of product dimensions, verifying whether the dimensional accuracy of key product areas meets design requirements.

Battery Capacity Grading Tester: Conducts precise testing and sorting of lithium battery cells for capacity, internal resistance, and voltage, ensuring battery pack consistency.

Programmable Constant Temperature and Humidity Tester: Simulates extreme environments including high temperature, high humidity, and low temperature, testing product reliability and durability under different climatic conditions.

Digital Display Cantilever Impact Tester: Simulates impacts and drops during product transportation and usage, testing the impact resistance of product housings and internal structures.

Plug Lead Bending Tester: Tests the bending resistance of power cords and plugs, ensuring that cables do not break during long-term use.

Anemometer: Precisely measures fan wind speed and air volume, verifying whether product performance meets design specifications.

Comprehensive Battery Tester: Conducts comprehensive performance testing on finished batteries, including charge/discharge performance and protection function verification.

Finished Product Inspection Process

Before products leave the factory, Hebron Technology implements a rigorous finished product inspection process, including visual inspection, functional testing, packaging inspection, and other steps, ensuring that every product meets quality standards. Meanwhile, the QC department monitors the entire production process, promptly identifying and correcting production anomalies to ensure consistent product quality.

ISO System Implementation

Hebron Technology has obtained ISO9001 Quality Management System certification, integrating quality management principles into every stage of product design, procurement, production, inspection, and shipment. Through standardized operating procedures, comprehensive documentation, regular internal audits, and management reviews, we continuously improve our quality management system, constantly enhancing product quality and customer satisfaction.

AI Visual Inspection: A New Defense Line (Future Direction)

Hebron Technology is exploring the application of AI visual inspection technology in product appearance inspection. Through deep learning algorithms, the system automatically identifies defects such as scratches, impurities, and color differences on product surfaces, further improving inspection efficiency and accuracy, safeguarding product quality.