1、Evaporationplating1.definitionEvaporationistheprocessofevaporatingamaterialtoasolidsurfacebyheatingit.ThestructureofevaporationcoatingequipmentisshowninFigure1.2.principleEvaporatedmaterialssuchasmetalsandcompoundsareplacedinthecrucibleorhungonthehotwir...

Rareearthcropenhancer1、Functionofrareearthcropenhancer①Theutilitymodelhasthedoubleeffectsofpreventingandeliminatingcropdiseasesandinsectpests,whichcangreatlyreducethetimesofapplyingmedicineandsavelabor.②Itisnotonlyapestcontrolagentbutalsoamicroelementfert...

The application amount of rare earth in China's glass and ceramic industry has increased at an average rate of 25% since 1988, reaching about 1600 tons in 1998. Rare earth glass ceramics are not only the traditional basic materials of industry and life, but als...

For all metals, purity is one of the main performance indexes of the target material. Why do we say so? The purity of the target material has a great influence on the performance of the later product film. However, the purity requirements for each product are different. For example, with the rapid development of ...

1. The term "rare earth" refers to the group Ⅲ B lanthanide elements in the periodic table and scandium and yttrium which are similar in chemical properties to lanthanide elements, totaling 17 elements. It was discover...

1、 As a biocatalyst, rare earth can activate the activity of many enzymes in animals and improve the activity of enzymes. Rare earth can effectively eliminate harmful free radicals in animals and enhance the resistance of animals and objects. Rare earth has an obvious effect on the distribution, metabolism and effect of various minerals in animals, which can significantly promote the absorption, utilization and accumulation of beneficial elements in animals. 2、 Statement of usage, dosage and effect Rep

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1、Whatisbinding?Bindingreferstoweldingthetargetandbacktargetwithsolder.Therearethreemainways:crimping,brazingandconductiveadhesive.Targetbindingiscommonlyusedforbrazing,whilebrazingfillermetalsarecommonlyusedforin,Sn,in–SN.Ingeneral,whensoftbrazingfillerm...