because Material of unique able , welding nickel net possible yes one complex and have challenge of process . nickel yes A sort of use widely of Metal , because of Excellent of Corrosion resistance , high temperature strength and conductivity and widely used At each industry . However , welding nickel net possible very Tricky , because it of melting point high , easy crack and right hot enter sensitive .
exist conduct nickel net welding hour , impressive revel . Place meet The essential challenge main come down to exist Nickel material material have compare high melting point characteristic , unique of Attributes , about for1455°C〔2651°F〕 , Can imagine this one pointer Far overtake steel or aluminum wait common Metal melting point , this At once Butt welding catch technology and equipment propose Got it pole high Require , by truly of ensure were able accomplish solid and reliable connect . at the same time , exist at the same time , This kind of high melting point nature return meeting guide To welding process Middle Heat Variety shape and Warp Phenomenon , and then right finally weld overall quality , quality cause Influence , right thing of effect , make welding process now that complex again have must confusing .
exist welding nickel net hour , operator face complex challenge one exist exist Nickel material material itself characteristic , unique of Attributes , like compare Low Ductility and compare high thermal expansion coefficient , I think These Attributes very have possible guide To welding area produce stress crack . for efficient response this one question , need solve of matter , accurate control welding process middle heat enter , implement preheat measure as well as implement weld later heat treatment Craftsmanship , by reduce Material internal Residue stress , appear arrive close important .
also , nickel return right pollute and Oxidation sensitive , this meeting Influence welding quality . use clean of welding technology and Protect gas Come Protect welding area free from Air Pollution thing of Influence Very important . use high purity filling Material and make sure appropriate of gas Protect for accomplish clean and solid of welding crucial .
for overcome These challenge , welding nickel net hour Can use Various solution . heaviest want of solution one yes against Material use correct of welder art . usually suggestion use Tungsten pole Inert gas (TIG) welding Come welding nickel net , because it Can accurate control hot enter and produce deformation smallest of high quality weld .
welding forward preheat Material return Can pass reduce Material right Thermal Stress of sensitivity Come help reduce crack risk . weld back heat treatment Can further eliminate Material middle of remnant stress , improve weld of overall strength and integrity .
use high quality of welding equipment , include clean and proper maintain of welding gun , filling Material and Protect gas , for accomplish success welding crucial . follow correct of welding program and guide also Very heavy want , For example control heat enter , Keep appropriate of gas Protect as well as against Place welding of specific Nickel alloy use correct of welding parameter .
although welding nickel net exist specific challenge , but pass Select appropriate welding technology , equipment and program , professional still can overcome problem , make sure do it generate satisfy strict Industry Standard high quality weld .