Polished Tungsten Spheres YG8

Overview

Tungsten Spheres are spherical parts made of metal powders such as tungsten carbide and cobalt through a powder metallurgy process, which have high hardness, wear resistance, corrosion resistance, and high temperature stability, and are widely used in precision bearings, valve seals, grinding media, and extreme working conditions, and is an ideal choice for replacing traditional steel balls.

As a supplier with more than 20 years of professional experience, we can not only provide customers with standardized and customized metal balls, but also provide bars, plates, tubes, and other special-shaped machined parts made of non-ferrous metals. If you are interested, please feel free to contact us by email.

Tungsten Carbide Material Properties

• The ultimate hardness and wear resistance are better than stainless steel balls, and can withstand the high-speed scouring of multiphase particle media such as water and coal slurry, coal powder, and silicon powder.
• Excellent chemical stability: It has excellent resistance to acids, alkalis, salts, and organic solvents, and can resist the erosion of highly corrosive substances such as hydrogen sulfide and chloride ions in oil drilling.
• Extreme temperature adaptability, low thermal expansion coefficient, cannot only work in a high temperature environment of 750 °C for a long time, but also in a cryogenic environment, and will not cause performance attenuation due to low temperature embrittlement.
• Good impact toughness, can resist vibration caused by fluid pressure fluctuations, and prevent fracture and glass chip chipping.
• The spherical structure realizes two-way sealing, which is suitable for the working conditions of frequent switching of medium flow direction, and the sealing performance is not affected by pressure fluctuations.

Tungsten Spheres Dimension

Application

1. Precision bearings: Tungsten carbide spheres are used in aviation, machine tools, medical equipment, etc., for high-speed, high-precision bearings, wear-resistant and long-lasting.
2. Valve spool: As the spool of petroleum, chemical, and high-pressure ball valves, the tungsten sphere is resistant to high pressure and corrosion, and provides reliable sealing.
3. Metrology and measurement: used as a calibration reference ball for precision instruments, such as coordinates and roundness meters, to ensure measurement accuracy.
4. Grinding and polishing: Polished tungsten spheres are used as ball grinding media and polishing beads for superfine grinding of sapphire, ceramics, semiconductors, and other materials.
5. Ball screw: Equipped with a high-precision ball screw, improve the positioning and transmission accuracy of CNC machine tools and precision equipment.
6. Mechanical molds: Pure tungsten spheres are used for punching, cold heading, drawing, and other mold components, with high hardness, and are not easy to deform.
7. Medical devices: used in minimally invasive surgical instruments, artificial joints, high-pressure syringes, etc., with good biocompatibility and wear resistance.
8. Electronic semiconductors: used in hard disks, probes, precision contacts, etc., with stable dimensions and conductive wear resistance.

Processing

(1) Weigh 92% tungsten carbide (WC) powder and 8% cobalt (Co) powder in strict accordance with the chemical composition ratio of YG8. The purity of raw materials is extremely high, and impurity content must be controlled below 0.01%.

(2) Put the prepared powder into the ball mill, add solvents such as alcohol and molding agents (such as paraffin wax or rubber) for long-term high-energy ball milling.

(3) The granulated powder is loaded into a highly elastic rubber mold and placed in a high-pressure container for cold isostatic forming processing.

(4) The pressed blank balls are put into a vacuum sintering furnace and sintered at a high temperature of 1400-1500°C to form a dense carbide body.

(5) Rough or fine grinding is carried out to correct the roundness of the sphere, reduce surface roughness, and accurately control the diameter tolerance.

(6) Mirror polishing of the sphere surface to ensure a final surface roughness of Ra 0.05μm or even lower, ensuring zero leakage and low friction in valve or bearing applications.

(7) Strict quality inspection to ensure qualified factory delivery, such as dimensional accuracy measurement, visual inspection, mechanical property testing, chemical composition analysis, etc.

Pictures

Packing

JINXING MATECH is a research and development, production, processing and sales of integrated, comprehensive refractory metal, precious metal material manufacturer.JINXING MATECH is an expert provider on the metal solution. Especially on the products such as Tungsten , Tungsten copper , Titanium , Zirconium, Vanadium, Hafnium, Sputtering Target , Nickel base alloy, Cobalt base alloys etc, products quality supplied according to ASTM , ASME , AMS , MIL , ISO , DIN and EN Standard which mainly used in Semiconductor, Petro-Chemical, Solor , Medical , Aerospace, Military industries.

So far JINXING MATECH's has attracted more than 50 countries customers in We mainly supply to the Market such as Canada, Sweden, Italy, Denmark, India, New Zealand , Mexico, South Korea , Netherland , Australia , India and Southeast Asia coutries sand many other countries and regions by reliable qualities, professional service and cost effective pricing. JINXING MATECH's production and inspection equipments include 100tons Hydraulic press, 20 tons Automation Controls Press, Vacuum Pressure Sintering Furnace , Electro-sparking wire cut machine ,powder metal Mixer, Granulation Drum, Hydrogen Sintering Furnace, Rochwell and Brinell hardness meters ,Metallocope , carbon and oxygen analyser etc.. JINXING MATECH's has 8,000 square meters construction area as well as two workshops ,JINXING MATECH people keep improving products quality and inspect the density, hardness and composition of finished products strictly, which ensures every product meets customers' requirements.

Technology Process

Strong manufacturing capabilities along with a full-scale R&D and test lab give us the ability to fully control all process of raw materials preparing, manufacturing, inspection, packing and delivery.

Our success is built on long-standing customer relationships, the quality of our sputtering targets and the level of technical and logistic services and sensitivity to economic, political and environmental issues. Within our organization, we are continually challenging our own performance.

All of our core technical team members have more than 10 years professional experience of both R&D and high volume manufacturing. Our business operations and logistics team is staffed with experienced professionals to provide friendly and timely support and services to our customers.

Quality Assurance

Special Metals Fabrication is an ISO 9001: 2015 accredited company. Our attitude to quality assurance means we are continually striving to improve our company and to ensure we are working to the highest possible standards.

Quality is a big part of every day at Special Metals Fabrication. Each service we offer has its own team of experts, making sure everything we offer complies within the standards we have set.