GB/T 33230-2016 in English
VALIDAluminum and aluminum alloy micro-multiport profiles
- Issued on:2016-12-13
- Implemented on:2017-07-01
- File Format:PDF
- Delivery:Via email within 5 business days
$359.00
《GB/T 33230-2016铝及铝合金多孔微通道扁管型材》由TC243（全国有色金属标准化技术委员会）归口，TC243SC1（全国有色金属标准化技术委员会轻金属分会）执行，主管部门为中国有色金属工业协会。
Introduction
In-depth interpretation of the standard for aluminum and aluminum alloy porous microchannel flat tube profiles
1. Standard scope and applicability
This standard is applicable to aluminum and aluminum alloy porous microchannel flat tube profiles (hereinafter referred to as flat tubes) with flat appearance, cross-sectional height not exceeding 3.5mm, and plane wall thickness not exceeding 0.45mm. The hydraulic diameter of a single channel shall not exceed 1.0mm.
2. Comparison of standard frameworks
| Standard dimensions | Technical requirements | Test methods | Allowance deviation |
|---|---|---|---|
| Cross-sectional height | ≤3.5mm | Image measuring instrument or GB/T14846 | ±0.02mm |
| Plane wall thickness | ≤0.45mm | Image measuring instrument or GB/T14846 | ±0.05mm |
| Hydraulic diameter | ≤1.0mm | Calculated according to the formula (Dc = 4×A/P) | - |
3. Background of standard formulation and analysis of technological evolution
With the increasing demand for high-efficiency heat exchangers in industries such as air conditioning and automobiles, flat tube profiles are widely used in the field of heat dissipation due to their unique structural advantages. The formulation of GB/T 33230-2016 fills the gap in the field of porous microchannel aluminum and aluminum alloy flat tubes in China, and standardizes the technical requirements and testing methods of the products.
4. Implementation Suggestions
Case Study: Practical Experience of an Automobile Air Conditioner Manufacturer
In actual production, it is recommended that companies:
- Strictly control the purity of raw materials (in line with GB/T32186-2015 Level II requirements)
- Adopt advanced continuous extrusion technology to ensure dimensional accuracy
- Strengthen the uniformity inspection of surface treatment (zinc spraying or roller coating)
- Regularly calibrate testing equipment to ensure accurate test data
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