China Wholesale Standard Non Standard Tungsten Carbide Ball China Tungsten Carbide Ball China Precis

China Wholesale Standard and Non Standard Tungsten Carbide BallCarbide Balls:
Carbide balls, commonly known as tungsten steel balls, refer to balls and balls made of cemented carbide. The carbide balls are ideal foPrecision Tungsten Carbide Ballsarsh environments, extremely resistant to abrasion, impact, corrosion and hard. Deformation.Raw Material:
The cemented carbide ball is based on a high hardness refractory metal carbide (WC, TiC) micron powder, with cobalt (Co) or nickel (Ni), molybdenum (Mo) as a binder, iTransmitter n a vacuum furnace or Powder metallurgy products sintered in a hydrogen reduction furnace are currently available in the YG, YN, YT, and YW series.Classification:
Carbide balls mainly include blank balls, fine grinding balls, punching balls, bearing balls, ball balls, non-magnetic balls, Monel balls, through-hole balls, measuring balls, scratching balls, and ball beads.Features:
The hard alloy ball has high hardness, wear resistance, corrosion resistance, bending resistance and harsh use environment, and can replace all steel ball products. The hardness of the cemented carbide ball is ≥90.5, and the density is 14.9 g/cm3.Application:
Carbide balls are used in a wide range of applications, such as: precision parts punching, precision bearings, instruments, meters, pens, sprayers, pumps, mechanical parts, sealing valves, brake pumps, punching holes, oil fields, Hydrochloric acid laboratory, hardness measuring instrument, fishing gear, counterweight, decoration, finishing and other high-end industries!Common Grades :GradeComponenthardnessdensityMPa
metallographicanalysisWCCOHRAg/cm³g/m³YG694%6%9114.6-15.01700A02B02C02YG892%8%8914.4-14.81800A02B02C02

Precision parameters of cemented carbide ball:

PRECISION CLASSVARIATIONSPHERICALSURFACETOLERANCELOT VARIATIONG30.0762μm0.0762μm0.0127μm±0.762μm0.127μm(0.000003″)(0.000003″)(0.0000005″)(±0.0003″)(0.000003″)G50.127μm0.127μm0.02μm±1.27μm0.254μm(0.000005″)(0.000005″)(0.0000008″)(±0.0005″)(0.00001″)G100.254μm0.254μm0.0254μm±2.54μm0.508μm(0.00001″)(0.00001″)(0.000001″)(±0.0001″)(0.00002″)G150.381μm0.381μm0.0254μm±2.54μm0.0762μm(0.000015″)(0.000015″)(0.000001″)(±0.0001″)(0.00003″)G160.4064μm0.4064μm0.0254μm±2.54μm0.8128μm(0.000016″)(0.000016″)(0.000001″)(±0.0001″)(0.000032″)G240.6096μm0.6096μm0.0508μm±2.54μm1.2192μm(0.000024″)(0.00002Sensor 4″)(0.000002″)(±0.00001″)(0.000048″)G250.635μm0.635μm0.0762μm±2.54μm1.27μm(0.000025″)(0.000025″)(0.000003″)(±0.0001″)(0.00005″)G481.2192μm1.2192μm0.0762μm±0.508μm2.4384μm(0.000048″)(0.000048″)(0.000003″)(±0.0002″)(0.000096″)G501.27μm1.27μm0.0762μm±7.62μm2.54μm(0.00005″)(0.00005″)(0.000003″)(±0.0003″)(0.0001″)Reference table of common specifications:diameter (mm)density (g/cm³)piece weight (g/pcs)2180.0752.5180.1473180.2543.5180.4044180.6034.5180.8595181.1785.5181.5676182.0356.5182.5877183.2317.5183.9758184.8248.5185.7869186.8689.5188.07810189.421121816.280
Carbide productionThe productionprocess of powder-metallurgical products basically includes the four steps of powder preparation, forming, sintering andfinishing.Tungsten carbide production
The APT (ammonium para-tungstate) is calcined iPower Transmission & Transformer nto tungsten oxide under high te-mperature. Subsequently the oxide is reduced to tungsten metal in a hydrogen atmosphere. The metal powder is then mixed with carbon and carburised under
inert atmosphere at high temperatures. The production parameters are decisive for the WC grain size in the sintered carbide.Powder preparation
The tungsten carbide is intensely mixed with the binder metal
cobalt, nickel or iron, various grain growth inhibitors and materials,
which promote compaction, by wet grinding so that a
homogeneous suspension is created. Afterwards, the suspension
is dried in a spray tower to produce a granulate with good
flow characteristics. This granulate represents the basis for all
forming processes.metal forming
The objective of the forming process is to obtain a near net
shape sample. Pressing is normally carried out at room temperature
with pressures reaching up to several tons per square
centimetre.
There are several ways of pressing blanks:
During isostatic cold pressing the powder is filled into an elastic
flexible hose and pressed into a compacted form through
high liquid pressure. The powder blocks which are produced
in this way can then be processed mechanically. All common
machining methods like milling, cutting, drilling or turning may
be applied.
In uniaxial pressing the pressing tool consists of a die and an
upper and a lower punch. The carbide powder is filled into the
die 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 bar
or cylindrical rod, with or without axial hole(s). A plasticiser is
added to the powder. The resulting paste is pressed through
an extrusion nozzle. Before sintering, the plasticiser must be
evaporated in special drying furnaces.
metal Injection Moulding (MIM) is a process usedEngineering & Construction Machinery to produce
more complex forms which cannot be produced by direct
pressing. The paste preparation is similar to the extrusion
process.Sintering process
The sintering process converts the blank into a homogeneous
and dense carbide with a high level of hardness. The material
is 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 % during
this process.Finishing
In order to achieve the final requirements of surface finish, tolerances,
etc. carbide parts can be subjected to a series of finishing
processes such as grinding, spark erosion and coating.

Zhuzhou HuijinCemented carbideCo., Ltd is located in Zhuzhou City, Hunan Province, China, where is the largest tungsten carbide producing area in China.Our mainpr-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 carAuto Repair Equipment & Tools bide, silicon carbide nozzles.
Technology and Quality creates a bright 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.