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How do packaging and transportation standards at submerged-arc welding flux manufacturers ensure the product’s moisture-proof performance?
Author:
Release Date:
2025-02-27
I. Selection and Treatment of Moisture-Resistant Packaging Materials
Multilayer Composite Film Sealing Technology
Major manufacturers use aluminum foil composite pouches as the inner packaging, with a water vapor transmission rate of ≤0.5 g/(m²·24 h), and employ heat-sealing technology to physically isolate the flux from external moisture.
Desiccant Integrated Design
Each box of flux is internally packed with silica gel or montmorillonite desiccant, configured according to the standard of 200 g per cubic meter of space, which can maintain the internal humidity of the package at ≤40% RH for up to 180 days.
II. Moisture-Proof Control Measures in the Transportation Process
Container Temperature and Humidity Monitoring
A dedicated transport container equipped with IoT sensors is used to monitor humidity levels inside in real time; an alarm is triggered when the humidity exceeds the set threshold (typically 55% RH).
Adaptive Modification of Transport Vehicles
Installation of moisture-proof flooring (PE material, thickness ≥5 mm) in shipping containers
Land transport vehicles shall be equipped with an automatic dehumidification system (dehumidification capacity ≥ 3 L/24 h).
III. Technical Specifications for Warehouse Management
Stacking Moisture-Proof Spacing Requirements
Packaging boxes shall be kept at least 15 cm above the floor and placed on moisture-resistant pallets made of wood-plastic composite material with a moisture content not exceeding 12%. Stacking intervals shall be no less than 50 cm to ensure adequate air circulation.
Intelligent Control of Environmental Parameters
The storage area is equipped with a constant-temperature and constant-humidity system that maintains a storage environment of 20–25°C and 45%–55% relative humidity, with the dehumidification unit automatically activated in the event of data anomalies.
IV. Industry Standards and Quality Assurance System
List of Packaging Inspection Items
Sealing Test: Negative Pressure Test (-50 kPa maintained for 30 minutes with no leakage)
Compression Test: Stacking Height ≥ 3 meters for 24 Hours with No Deformation
Document Traceability Mechanism
Each batch of products is accompanied by a moisture-control packaging process record form that includes 18 critical parameters, such as desiccant replacement timing and encapsulation ambient humidity, thereby enabling full quality traceability.
V. Technological Upgrades Amid Environmental Protection Trends
Leading companies have begun to deploy bio-based moisture-barrier films (with a PLA content of ≥30%) and reusable desiccants (capable of being regenerated and recycled for ≥5 cycles), thereby reducing environmental impact while maintaining superior moisture-control performance.
Current moisture-barrier packaging standards can control the moisture content of fluxes to ≤0.3%, thereby meeting the stringent storage stability requirements for submerged-arc welding fluxes stipulated in international standards such as AWS A5.17.
Zhengzhou Phoenix New Materials Technology Co., Ltd.
Address: Duanhe Industrial Park, Xiaoguan Town, Gongyi City, Henan Province, China
Mobile phone:18503899117
Telephone:0371-67316888
Email:phx2@fenghuanghj.com
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