Atomized powder particles are cylindrical spherical form,sometimes also show irregular shape.5%;particle size plus 325 mesh is not more than 1. Electricalcarbon products produced generally with litharge powder, chemical symbol Pb0.5%.025%.05%. Copper appearance is pale pink, brown oreven black, should be stored in sealed containers to prevent oxidation. Copper powder used for electrical carbon products iselectrolytic production, high purity (up to 99.5%; throughhydrochloric acid treated, the residue is not more than 0. Leadpowder for electric charcoal production was taken by the molten lead through spraymethod.The tin powder used for electrical carbon production is the granular structurethat the molten tin liquid prepared by spraying method, the spraying method isby compressing air or other gases to crush the molten metal flow, make it sprayinginto powder.5%; oxygen content is not more than 0. Different varieties electrical carbon products use different leadpowder particle size, lead powders technical performance indicators: Leadcontent is not less than 99.Lead powder monoxide technical performance indicators: a lead oxide content ofnot less than 90%; metallic lead content is not more than 10%; residuesinsoluble in nitric acid is not more than 0.
Tin isthe low melting point metal, the melting point is 231. Addingcopper powder in the sliding contact can increase the wear resistance of thecontacts.Source. Tinpowders technical performance indicators: tin content is not less than 99. Copper is the wear parts of electric industry producing carbonsliding friction, such as one of the important raw materials of metal-graphiteproducts. Silver powder for electric charcoal production is the pure silver powder. Lead at 200 ~ 250can generate lead oxide film, this film contacts with graphite film, have goodlubricity, can reduce the wear of the brush and the commutator itself.5%), long-grain structure is dendritic,after pressing, the products with high mechanical strength.85. It can be used for producing copper-graphite brushes, copper-graphitebearing, copper-graphite and copper-graphite electrode contacts.5%; moistureis not more than 0. Add leadpowder or oxidized lead powder into electric power brush material ratio canreduce the hardness of the brush raw material, so that the brush can berelatively easy to establish a good contact with the commutator, reducing therectifying sparks.. Silver powderis mainly used to manufacture silver-graphite contacts, micro-motor brush,signal relay and the electrical contacts of some electronic equipment and otherspecial occasions using electrical carbon products. Such as bronze-graphite bearing is the eutectic tin bronze formedby tin powder and copper powder role, increase the useful life of the bearing. The technicalperformance indicators of copper: copper content is not less than 99.com.
Silver is a precious metal, its conductivity is the best in metals,so its contact resistance is very low, contact voltage drop is small. Silver powderstechnical performance indicators: silver content is not less than 98.0%, cut 325 mesh is not lessthan 95%. In the copper-graphiteproducts, copper powder as the auxiliary conductor of products, with thecharacteristic of lowering resistivity, increasing the allowable currentdensity, reducing the contact resistance, reducing the contact voltage drop, increasingthe analysis of cokes adhesive, etc.mhcmp. According to differentmanufacturing processes, copper powder be divided into saponification(deacidification) copper powder and unsaponifiable copper powder two kinds,electric carbon products production are general use unsaponifiable copper. Copper-graphiteproducts by adding tin powder, tin react with copper in the products, obtain tinbronze, it can increase the mechanical strength of products, improved abrasionresistance.5%.Metal powder for electrical carbon.Metal powders for electrical carbon products production have copper powder, tin powder, lead powder, lead oxide powder and silver powder.05%; through nitric acid treated, residue on ignition isless than 0
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Tin isthe low melting point metal, the melting point is 231. Addingcopper powder in the sliding contact can increase the wear resistance of thecontacts.Source. Tinpowders technical performance indicators: tin content is not less than 99. Copper is the wear parts of electric industry producing carbonsliding friction, such as one of the important raw materials of metal-graphiteproducts. Silver powder for electric charcoal production is the pure silver powder. Lead at 200 ~ 250can generate lead oxide film, this film contacts with graphite film, have goodlubricity, can reduce the wear of the brush and the commutator itself.5%), long-grain structure is dendritic,after pressing, the products with high mechanical strength.85. It can be used for producing copper-graphite brushes, copper-graphitebearing, copper-graphite and copper-graphite electrode contacts.5%; moistureis not more than 0. Add leadpowder or oxidized lead powder into electric power brush material ratio canreduce the hardness of the brush raw material, so that the brush can berelatively easy to establish a good contact with the commutator, reducing therectifying sparks.. Silver powderis mainly used to manufacture silver-graphite contacts, micro-motor brush,signal relay and the electrical contacts of some electronic equipment and otherspecial occasions using electrical carbon products. Such as bronze-graphite bearing is the eutectic tin bronze formedby tin powder and copper powder role, increase the useful life of the bearing. The technicalperformance indicators of copper: copper content is not less than 99.com.
Silver is a precious metal, its conductivity is the best in metals,so its contact resistance is very low, contact voltage drop is small. Silver powderstechnical performance indicators: silver content is not less than 98.0%, cut 325 mesh is not lessthan 95%. In the copper-graphiteproducts, copper powder as the auxiliary conductor of products, with thecharacteristic of lowering resistivity, increasing the allowable currentdensity, reducing the contact resistance, reducing the contact voltage drop, increasingthe analysis of cokes adhesive, etc.mhcmp. According to differentmanufacturing processes, copper powder be divided into saponification(deacidification) copper powder and unsaponifiable copper powder two kinds,electric carbon products production are general use unsaponifiable copper. Copper-graphiteproducts by adding tin powder, tin react with copper in the products, obtain tinbronze, it can increase the mechanical strength of products, improved abrasionresistance.5%.Metal powder for electrical carbon.Metal powders for electrical carbon products production have copper powder, tin powder, lead powder, lead oxide powder and silver powder.05%; through nitric acid treated, residue on ignition isless than 0
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