Zhuzhou Huijin Cemented Carbide Co., Ltd.  

Product Name: Tungsten Carbide Sleeve Bearing Bushing Shaft Sleeve Model NO.: S-001 Standard: Standard, Nonstandard Performance: Wear Temperature: High Temperature Mechanical Seal Speed: Ultra-High-Speed Mechanical Seal Pressure: High Pressure Mechanical Seals Structure: Single End Material: Tungsten Carbide Applciation3: Electric Submersible Pump Trademark: zzhuijin Transport Package: Cartons or Wooden Cases Origin: China Product Description Tungsten Carbide Shaft SleeveThe cemented carbide bushings &sleeves are mainly used for rotating support, seal, and anti-trust of the axle in the motor of ESP, protector and centrifuge that work in the extreme adverse conditions. especially used for high pressure or corrosion resistance pumps, flow control,As afully-integrated supplier, we manage the full manufacturing life cycle of your product. Managing the entire process ensures that our products are the highest quality-every time. It also allows us the flexibility to meet each customer's unique needs, such as grade composition, part geometry and batch size. gradedensityhardnessTRSperformancefield of application(g/cm3)(HRA)≥N/mm2YG614.7-15.0≥90.01900Excellentwear-resistance, good strength and impact hardnesssuitable for positioning or protecting the shaft on the rotating shaft, andprevents the shaft from wearingYG814.5-14.9≥89.02000excellent wear-resistance, good strength and impact hardnessYWN614.7-14.9≥90.01760good wear-resistance, corrosion-resistanceapply in environment which is oil,sewage,acid and alkali, resin, Liquefied hydrocarbon,Solid particleYWN814.4-14.8≥89.01800good wear-resistance, corrosion-resistancTechnical parameters: surfaceroughnessroundness(o)parallelism(∥)perpendicularity(⊥)concentricity()circular run-outtotal run-out(m m)(m m)(m m)(m m)(m m)(m m)3.2-0.1≤0.010.01-0.02≤0.01≤0.025≤0.025≤0.025ΦD (mm)Φd (mm)ΦH (mm)10~5002~4001.5~300Also we can produce the carbide sealing rings as your required. Carbide productionThe productionprocess of powder-metallurgical products basically includes the four steps of powder preparation, forming, sintering andfinishing.Tungsten carbide productionThe APT (ammonium para-tungstate) is calcined into tungsten oxide under high te-mperature. Subsequently the oxide is reduced to tungsten metal in ahydrogen atmosphere. The metal powder is then mixed with carbon and carburised underinert atmosphere at high temperatures. The production parameters are decisive for the WC grain size in the sintered carbide.Powder preparationThe tungsten carbide is intensely mixed with the binder metalcobalt, nickel or iron, various grain growth inhibitors and materials,which promote compaction, by wet grinding so that ahomogeneous suspension is created. Afterwards, the suspensionis dried in aspray tower to produce agranulate with goodflow characteristics. This granulate represents the basis for allforming processes.metal formingThe objective of the forming process is to obtain anear netshape sample. Pressing is normally carried out at room temperaturewith pressures reaching up to several tons per squarecentimetre.There are several ways of pressing blanks:During isostatic cold pressing the powder is filled into an elasticflexible hose and pressed into acompacted form throughhigh liquid pressure. The powder blocks which are producedin this way can then be processed mechanically. All commonmachining methods like milling, cutting, drilling or turning maybe applied.In uniaxial pressing the pressing tool consists of adie and anupper and alower punch. The carbide powder is filled into thedie and then compacted to create the so called green carbide,which is ejected from the pressing die.Extrusion pressing is mainly used to produce rectangular baror cylindrical rod, with or without axial hole(s). Aplasticiser isadded to the powder. The resulting paste is pressed throughan extrusion nozzle. Before sintering, the plasticiser must beevaporated in special drying furnaces.metal Injection Moulding (MIM) is aprocess used to producemore complex forms which cannot be produced by directpressing. The paste preparation is similar to the extrusionprocess.Sintering processThe sintering process converts the blank into ahomogeneousand dense carbide with ahigh level of hardness. The materialis sintered at temperatures between 1, 300 and 1, 500 °C(liquid phase sintering) and sometimes also at high pressure(up to 100 bar). The volume is reduced by up to 50 %duringthis process.FinishingIn order to achieve the final requirements of surface finish, tolerances,etc. carbide parts can be subjected to aseries of finishingprocesses such as grinding, spark erosion and coating. ZhuzhouHuijinCemented carbideCo., Ltd is located in Zhuzhou City, Hunan Province, China, where is the largest tungsten carbide producing area in China.Our main pr-oducts inclue: Tungsten carbide rods, carbide strips, carbide dies and bushes, tungsten carbide roll rings, carbide disc cutters, carbide end mill cutters, carbidestud and pins, tungsten water jet cutters, precision tools, tungsten carbide grits and powder, welding rods, ceramet inserts, PCD and CBN tools, non-standard and deep-processing products and so on. We also provide very good quality of boron carbide, silicon carbide nozzles.Technology and Quality creates abright future. Looking forward to your cooperation! Our company gathered the professional staff members for designing, producing and saling. Our workers are well trained and experienced. Our team is honest, positive, keeping promise, working hard and carefully. We sincerely hope we can provide our clients with good quality, moderate price together with professional service. We have advanced equipment, test facilities and professional employees. We strictly carry on ISO9001: 2008 requirements to guarantee the quality.