Basic Info.
Surface Treatment
Polishing
Temperature
High Temperature
Material
Tungsten Carbide
Application
Precision Sealing
Transport Package
Cartons or Wooden Cases
Product Description
Cemented Tungsten Carbide Balls in Full Sizes Carbide 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, in 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 :
| Grade | Component | hardness | density | MPa | metallographic analysis |
| WC | CO | HRA | g/cm³ | g/m³ |
| YG6 | 94% | 6% | 91 | 14.6-15.0 | 1700 | A02B02C02 |
| YG8 | 92% | 8% | 89 | 14.4-14.8 | 1800 | A02B02C02 |
Precision parameters of cemented carbide ball:
| PRECISION CLASS | VARIATION | SPHERICAL | SURFACE | TOLERANCE | LOT VARIATION |
| G3 | 0.0762μm | 0.0762μm | 0.0127μm | ±0.762μm | 0.127μm |
| (0.000003″) | (0.000003″) | (0.0000005″) | (±0.0003″) | (0.000003″) |
| G5 | 0.127μm | 0.127μm | 0.02μm | ±1.27μm | 0.254μm |
| (0.000005″) | (0.000005″) | (0.0000008″) | (±0.0005″) | (0.00001″) |
| G10 | 0.254μm | 0.254μm | 0.0254μm | ±2.54μm | 0.508μm |
| (0.00001″) | (0.00001″) | (0.000001″) | (±0.0001″) | (0.00002″) |
| G15 | 0.381μm | 0.381μm | 0.0254μm | ±2.54μm | 0.0762μm |
| (0.000015″) | (0.000015″) | (0.000001″) | (±0.0001″) | (0.00003″) |
| G16 | 0.4064μm | 0.4064μm | 0.0254μm | ±2.54μm | 0.8128μm |
| (0.000016″) | (0.000016″) | (0.000001″) | (±0.0001″) | (0.000032″) |
| G24 | 0.6096μm | 0.6096μm | 0.0508μm | ±2.54μm | 1.2192μm |
| (0.000024″) | (0.000024″) | (0.000002″) | (±0.00001″) | (0.000048″) |
| G25 | 0.635μm | 0.635μm | 0.0762μm | ±2.54μm | 1.27μm |
| (0.000025″) | (0.000025″) | (0.000003″) | (±0.0001″) | (0.00005″) |
| G48 | 1.2192μm | 1.2192μm | 0.0762μm | ±0.508μm | 2.4384μm |
| (0.000048″) | (0.000048″) | (0.000003″) | (±0.0002″) | (0.000096″) |
| G50 | 1.27μm | 1.27μm | 0.0762μm | ±7.62μm | 2.54μm |
| (0.00005″) | (0.00005″) | (0.000003″) | (±0.0003″) | (0.0001″) |
| diameter (mm) | density (g/cm³) | piece weight (g/pcs) |
| 2 | 18 | 0.075 |
| 2.5 | 18 | 0.147 |
| 3 | 18 | 0.254 |
| 3.5 | 18 | 0.404 |
| 4 | 18 | 0.603 |
| 4.5 | 18 | 0.859 |
| 5 | 18 | 1.178 |
| 5.5 | 18 | 1.567 |
| 6 | 18 | 2.035 |
| 6.5 | 18 | 2.587 |
| 7 | 18 | 3.231 |
| 7.5 | 18 | 3.975 |
| 8 | 18 | 4.824 |
| 8.5 | 18 | 5.786 |
| 9 | 18 | 6.868 |
| 9.5 | 18 | 8.078 |
| 10 | 18 | 9.421 |
| 12 | 18 | 16.280 |
Carbide production
The 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 into 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 used 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.
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Zhuzhou Huijin Cemented carbide Co., 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 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.
Address:
Guihua Group, Guihua Village, Mingzhao Township, Hetang District, Zhuzhou City, Hunan Province
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Auto, Motorcycle Parts & Accessories, Industrial Equipment & Components, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Tools & Hardware
Management System Certification:
ISO 9000
Company Introduction:
Zhuzhou Huijin Cemented Carbide Co. Ltd is located in the hometown of Tungsten carbide, Zhuzhou city, Hunan Province, the largest tungsten carbide producing area in China.
Our company have our own Lab for inspection, advanced production equipment, excellent technical R&D team. We have production line from mold workshop, design, production and deep processing. More than 20000 sets molds stock for production. Large stock for standard products, such like carbide rods, carbide strips, and carbide plates. In this way, our products are 100% quality guaranteed and delivery fast.
Our main products including:
Range 1, Customized products and precision processing products.
Range 2, Tungsten carbide die cores for Cold heading dies, drawing dies, nail mold.
Range 3, Tungsten Carbide cutting tools (Inserts, shims, end mill, drills, wood and stone working tools, tungsten carbide saw blade, saw tips, carbide disc cutter, percussive drill tip.
Range 4, Tungsten carbide Mineral tool (TBM cutter, button, coal drilling bits, drill bits).
Range 5, Carbide rods, carbide strips (STB blanks), carbide plates.
Range 6, Carbide nozzle, carbide mechanical seal ring, bushing, balls & seats.
Range 7, High density products
With stable products quality, professional service, competitive prices, our customers range over 50 countries and regions. You are welcome to contact us anytime for all carbide solutions.
Inquire now and receive a reply within 24 hours!
Trust us, we are your best choice!
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