准确,快速扩散的氢测量
热解吸质谱(TDMS )
Accurate and rapid diffusible hydrogen measurements allow you to avoid embrittlement, hydrogen-induced cracking and other costly failures.
Hydrogen-induced damage is a wide-spread and dreaded phenomenon. During welding, hydrogen is generated from the dissociation of water vapor (e.g. humidity) or hydrocarbons in the welding arc, and the molten metal can rapidly pick up hydrogen. Once in the metal, hydrogen atoms can diffuse swiftly inside the microstructure of the metal. Diffusible hydrogen causes hydrogen induced cracking (also known as cold or delayed cracking), where components fail under the influence of mechanical stress - suddenly and without prior indication. Thus, diffusible hydrogen is critical to assess because of embrittlement, hydrogen induced or assisted cracking (HIC/HAC) or hydrogen delayed fracture among other damaging effects.
G4 Phoenix DH,利用载气萃取液,以快速自动确定各种矩阵中的扩散氢。
关键好处:
Hydrogen induced cracking and embrittlement is a dangerous phenomenon. Although high-strengths steels and oxygenated copper grades are particular susceptible to hydrogen embrittlement, an uptake of diffusible hydrogen affects many more metals but depends to a large extent on the environmental and process conditions, like ambient moisture. There is a risk of introducing hydrogen in every mechanical, thermal and galvanic manufacturing step, especially during welding and soldering.
G4 Pheonix应用的快速方法可以在不到30分钟的时间内提供结果,而传统方法则需要多天。因此,这是唯一允许可行焊接测试进行扩散氢的方法。这使用户可以在完成之前优化其流程以避免昂贵的故障。
规格 | 益处 | |
Detector | ||
G4 PHOENIX |
Thermal conductivity detector with reference channel and adjustable gain amplifier |
可靠,可调节的范围,自由漂移 |
G4 Phoenix MS |
质谱仪,m/z范围1-100 AMU,单四极杆,优化的EI源和通道探测器 |
Unique mass spectrometry performance |
Furnaces | ||
Infrared heated |
IR炉UOP至900ºC,I.D。石英管30毫米,水冷却,光导热电偶试剂盒,用于直接样品温度读数 |
精确的温度控制,柔性加热程序,接受大型样品 |
电阻加热(选项) |
Additional resistance heated furnace up to 1100 ºC, i.d. of quartz tube 18 mm |
Residual hydrogen in multi-phase duplex steels |
Carrier Gas |
Nitrogen 99.995% purity, min. 2 bar (~50 psi), 99.9990% purity for trace analysis |
预清洗使用regenerateable分子筛 |
Calibration Gas |
具有纯气体(H2或HE)或经过认证的混合物(每个组件99.999%纯度),具有10个单独体积的自动气体剂量校准系统 |
Easy, precise gas calibration without standards, traceable to p, T, V |
Cooling Water |
1 l/min @ 3 bar (44 psi) |
快速冷却,标准的自来水兼容,带水阀的节水设计,冷却器也可能 |
Power Supply |
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G4 PHOENIX |
230 VAC(±10%),50-60 Hz,2200 VA | Industry standard power and current configurations |
Mass Spectrometer |
230 VAC,50-60 Hz,250 VA |
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Dimension & Weight |
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G4 PHOENIX | 630 x 700 x 670 mm (W x D x H), weight ~ 50 kg | |
Mass Spectrometer | 630 x 640 x 480毫米(w x d x h),重量〜60 kg |
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