液压胀管VS传统机械胀管：效率、精度、成本的三重突破 | Hydraulic Expansion VS Traditional Mechanical Expansion: A Triple Breakthrough in Efficiency, Precision and Costs
在核电、化工、能源等高端制造领域，管材连接工艺的精度与可靠性直接决定设备寿命与安全性。
作为全国领先的液压胀管设备供应商，阳发机械凭借自主研发的液压胀管技术，正在颠覆传统机械胀管的局限性。
一、核心区别：从“硬碰硬”到“以柔克刚”的技术跃迁
1. 原理差异
传统机械胀管：依赖刚性滚柱或锥形工具的物理挤压，通过机械力强行扩张管壁，易导致材料应力集中、微观裂纹等问题。
液压胀管（阳发机械核心技术）：利用高压液体均匀作用于管材内壁，通过柔性介质实现360°无死角膨胀，受力均匀性提升50%以上。
2. 工艺适配性
传统工艺受限于工具尺寸与管径匹配度，阳发液压胀管机通过智能压力调节系统，可覆盖Φ10mm至Φ500mm的复杂管径需求，适配钛合金、双相钢等超硬材料的加工挑战。
二、性能优势：效率、精度与成本的“三重突破”
1. 效率提升（数据来自阳发客户案例）
单次作业时间缩短60%：传统机械胀管需多次调整工具，而阳发设备支持一键式参数预设，如某核电项目换热器胀管效率从8小时/台降至3小时。
故障率降低90%：液压系统避免机械摩擦损耗，设备维护周期延长至2000小时以上。
2. 精度革命
密封合格率99.8%（符合ASME Section III标准）：阳发专利胀头设计结合实时压力反馈，管板间隙控制精度达±0.02mm，杜绝传统工艺常见的微泄漏风险。
零材料损伤：柔性胀管避免表面划痕，特别适用于食品级不锈钢管等光洁度敏感场景。
3. 全生命周期成本优化
能耗降低40%：智能液压系统按需输出压力，较传统电机驱动节能显著。
三、行业价值：为什么全球TOP10能源企业选择阳发？
1. 应对严苛标准
在欧盟PED 2014/68/EU压力设备指令、中国GB/T 151-2014换热器标准等框架下，阳发液压胀管机通过德国TÜV认证，成为中广核、德固特等企业的指定工艺方案。
2. 解锁新型应用场景
微型化器件加工：如氢燃料电池双极板微通道胀接，传统工具无法介入的3mm以下狭缝，阳发设备可精准完成成型。
异形管修复：针对化工装置中的弯曲变形管束，液压柔性补偿技术实现原位修复，较更换新管成本降低80%。
3. 绿色制造标杆
阳发设备采用可降解液压油及噪音抑制技术（工作噪音≤65dB），契合欧盟碳关税（CBAM）对生产环节的环保要求。
从“能用”到“智造”，阳发机械定义行业新标准。
在高端制造向“零缺陷”迈进的时代，
阳发机械的液压胀管技术不仅解决了传统工艺的痛点，
更通过智能化、模块化设计，持续推动行业升级。
In nuclear power, chemical industry, energy and other high-end manufacturing fields, the
precision and reliability of the pipe connection process directly determines the equipment
life and safety.
As a leading supplier of hydraulic pipe expanding equipment, Yangfa Machinery is
subverting the limitations of traditional mechanical pipe expanding by virtue of its
self-developed hydraulic pipe expanding technology.
First, the core difference: from “hard to hard” to “soft to hard” technological leap
1. Principle differences
Traditional mechanical tube expansion: rely on the physical extrusion of rigid rollers or
conical tools, through the mechanical force to force the expansion of the tube wall, easy to
lead to material stress concentration, microscopic cracks and other problems.
Hydraulic Expansion (core technology of Yangfa Machinery): Using high-pressure liquid
to act uniformly on the inner wall of the pipe, the flexible medium realizes 360°expansion
without dead angle, and the uniformity of force is improved by more than 50%.
2. Process adaptability
The traditional process is limited by the matching of tool size and tube diameter. Yangfa
Hydraulic Tube Expander System can cover the complex tube diameter from Φ10mm to
Φ500mm through the intelligent pressure adjustment system, which is suitable for the
machining challenge of titanium alloy, duplex steel and other super-hard materials.
Performance Advantages: “Triple Breakthrough” in Efficiency, Precision and Costs
1. Efficiency improvement (data from Yangfa customer cases)
Single operation time shortened by 60%: the traditional mechanical tube expansion needs
to adjust the tool several times, while Yangfa equipment supports one-button parameter
presetting, such as a nuclear power project heat exchanger tube expansion efficiency
from 8 hours / unit down to 3 hours.
Failure rate reduced by 90%: hydraulic system to avoid mechanical friction loss,
equipment maintenance cycle extended to more than 2000 hours.
2. Accuracy revolution
Seal qualification rate of 99.8% (in line with ASME Section III standards): Yangfa's
patented expansion head design combined with real-time pressure feedback, tube plate
gap control accuracy of ± 0.02mm, eliminating the risk of micro-leakage, which is common
in traditional processes.
Zero material damage: Flexible expanding tube avoids surface scratches, especially
suitable for food-grade stainless steel tube and other finish-sensitive scenarios.
3. Full life cycle cost optimization
Reduce energy consumption by 40%: Intelligent hydraulic system outputs pressure on
demand, saving significant energy compared to traditional motor drive.
Third, industry value: why the global TOP10 energy companies choose Yangfa?
1. Responding to stringent standards
Under the framework of EU PED 2014/68/EU Pressure Equipment Directive and China
GB/T 151-2014 Heat Exchanger Standard, Yangfa Hydraulic Tube Expander System has
passed the German TÜV certification, and become the designated process solution for
CGNPC, Degute and other enterprises.
2. Unlocking new application scenarios
Miniaturized device processing: such as hydrogen fuel cell bipolar plate micro-channel
expansion, traditional tools can not intervene in the slit below 3mm, Yangfa equipment can
accurately complete the molding.
Repair of shaped pipes: For the bent and deformed pipe bundles in chemical plants, the
hydraulic flexible compensation technology realizes in-situ repair, which reduces the cost
of replacing new pipes by 80%.
3. Green Manufacturing Benchmark
Yangfa equipment adopts biodegradable hydraulic oil and noise suppression technology
(working noise ≤ 65dB), which meets the environmental requirements of the European
Union Carbon Tariff (CBAM) for the production process.
Hydraulic tube expansion machines are extensively utilized in aerospace, automotive manufacturing, petrochemical industries, and beyond.
They not only deliver precise and efficient connections for tube expansion processes but also provide robust technical support for advancing the modernization of the machinery manufacturing sector.