In our production live, tungsten spheres have many important effects on us. At present, the main performance indexes of tungsten alloy balls are fracture state, metallographic organization, physical and mechanical properties and sphericity error, surface roughness, and so on. The more difficult to control in the deep processing is the sphericity error. The measurement of removal rate, sphericity error, and surface roughness of tungsten spheres is the main focus of testing. So how do determine the tungsten ball organization and properties? Let's take a look.
The following is a list of contents:
l Fracture inspection of tungsten alloy balls
l Metallographic examination of tungsten alloy balls
l Physical and mechanical properties of tungsten alloy balls
The fracture condition of a tungsten alloy ball is closely related to its quality, and in most cases, a normal fracture indicates a good quality of tungsten carbide. Fracture inspection is one of the simplest, quickest, and most practical ways to detect the internal organization of cemented carbide. Cemented carbide fracture is a brittle fracture and has finer grains than other metallic materials, resulting in a smoother and more detailed fracture shape. Defects in the organization and structure can be shown in the alloy fracture.
Fracture inspection of tungsten alloy balls is usually performed under a binocular vertical microscope at 25-50x. The fracture surface should be free of oil, sweat, and other dirt that may affect observation, and should also have the largest possible fracture area. The fracture inspection can determine defects such as dirty holes, decarburization, carburization, under-fired, over-fired, mixed material, and unpressed. When these defects occur in a tungsten sphere, then its mechanical properties will be significantly reduced, seriously affecting its performance and thus the life of mechanical parts.
The metallographic examination of tungsten alloy balls can not only determine the quality of the alloy but also infer the production process of the alloy. The metallographic inspection starts with the preparation of specimens, which are made into metallographic grinding discs after rough grinding, mounting, fine grinding, polishing, and fine grinding. Rough grinding with a coarser silicon carbide grinding wheel, the surface should be ground 2 ~ 3 mm to test the internal organization of the alloy. The rough grinding specimen will be set into the sample ring with quick glue when mounting. All ground surfaces should be in the same plane when mounting the sample. The sample ring with the sample inlay is placed on a special grinding device for fine grinding to eliminate the abrasion marks produced during coarse grinding.
Polishing can be done on a similar fine grinding device with a canvas pad on the grinding disc and a drop of abrasive, which should give a bright grinding surface without any streaks. Then further on the iron disc with tweed cloth block fine grinding, to eliminate the abrasive film formed during polishing, in the process of fine grinding from time to time to the abrasive and lubricant dripping into the grinding disc. After fine grinding, the grinding disc is as bright as a mirror. The uncorroded grinding discs can be observed under double magnification to determine the porosity, dirtiness, graphite inclusions, and other defects of the tungsten alloy balls, such as delamination, cracks, unpressed, under-or, over-fired, etc.
The physical and mechanical properties of tungsten alloy balls include specific gravity, coercive magnetic force, Rockwell hardness, bending strength, compressive strength, impact toughness, and so on. The specific gravity is measured according to Archimedes' principle, the coercivity is measured by magnetizing and then demagnetizing the tungsten ball, the hardness is measured by the A scale, and the flexural and compressive strengths and impact toughness are measured on an impact tester. After this series of measurements, the tungsten alloy balls are tested for their properties.
Above is the information about the determination of tungsten alloy ball organization and properties. If you are interested in tungsten alloy balls, tungsten spheres, tungsten ball pens, or other cemented carbides, you can contact us. Our company focuses on the development of cemented carbide, mining machinery, engineering tools, auto parts, new energy, leisure sports equipment, and other our company focuses on the development of cemented carbide, mining machinery, engineering tools, auto parts, new energy, leisure sports equipment, and other industries. Our website is https://www.7jinxin.com/. We are very much looking forward to your arrival and hope to cooperate with you.
Tungsten Rods, also known as Tungsten Alloy Rods, are made from metal powder refined at specific high temperatures using special high-temperature powder metallurgy techniques. This gives the tungsten alloy rod a low coefficient of thermal expansion and good thermal conductivity. Next, let's take a look at the identification and buying considerations for Tungsten Rods. Here are some answers.
Here is the content list:
l How do identify Tungsten Rods?
l Tungsten Rods are not to be purchased.
In plasma welding and tungsten arc welding, tungsten carbide rod are a key factor in the shape of the welding arc and the quality of the final weld. I asked the skilled workers who have many years of experience in tig welding and learned some tips on how to identify good and bad Tungsten Rods, which I would like to share with you.
First, the redhead Tungsten Rods: redhead is a thorium tungsten electrode, currently the most stable tungsten electrode, cheap, radioactive contamination. Suitable for carbon steel, stainless steel, copper, titanium, and other metal materials. Secondly, grey-headed Tungsten Rods: Grey-headed is cerium tungsten electrode, also relatively widely used, as radioactive as red-headed tungsten rods, and more harmful to the body. It is suitable for carbon steel, stainless steel, copper, titanium, and other metal materials. Third, green-headed Tungsten Rods: Green-headed are pure tungsten electrodes, which are of good quality, weakly radioactive, and less harmful to the body. Suitable for aluminum, aluminum alloy, magnesium, and magnesium alloy. Fourth, Golden Yellow Head Tungsten Rods: Golden Yellow Head is a lanthanum tungsten electrode, the best tungsten rod on the market now, expensive, basically harmless to the body, and suitable for any metal material.
Tungsten Rods use different binders, and there are also major differences between the two in terms of physical and chemical properties, process parameters, and uses. Therefore, when purchasing Tungsten Rods, it is necessary to select the type, and it is time to consider the use path, working conditions, and other aspects to balance the performance of the product, suitable for machinery and equipment, to provide the service life of cutting tungsten carbide rod and equipment, reduce the waste rate, the number of refurbishment, etc., to improve the efficiency of enterprises and maximize the efficiency of enterprises.
The physicochemical properties, process parameters, and applications of Tungsten carbide rods vary depending on the binder. Therefore, when purchasing a tungsten carbide rod, it is important to choose the right type. It is then necessary to consider the way of use, working conditions, and other aspects to balance the product performance and apply to mechanical equipment, thus providing tungsten carbide rod and equipment life, reducing the scrap rate, the number of refurbishments, etc., to improve business efficiency and maximize business benefits.
All welders should pay more attention when selecting Tungsten Rods. We also welcome friends who know about welding and tungsten fishing rod to share their experiences in the comments section. Our official website is https://www.7jinxin.com/. If you work in a related field or want to know more about our company, you can talk to us on our website. Our cost-effective products are very popular among everyone.
Uses of various carbide milling cutters
Carbide milling cutters are generally used in CNC machining centers and CNC engraving machines. It can also be installed on an ordinary milling machine to process some hard but not complicated heat-treated materials. Next, let's learn about the purpose of various types of cemented carbide milling cutters.
1. Carbide cylindrical milling cutter: used for processing planes on horizontal milling machines. The cutter teeth are distributed on the circumference of the milling cutter. According to the tooth shape, they are divided into straight teeth and spiral teeth. According to the number of teeth, there are two types: coarse teeth and fine teeth. The helical coarse-tooth milling cutter has fewer teeth, high tooth strength and large chip space, suitable for rough machining; fine-tooth milling cutters are suitable for finishing.
2. Carbide face milling cutter: used for machining plane on vertical milling machine, end milling machine or gantry milling machine. There are cutter teeth on the end surface and circumference, as well as coarse and fine teeth. Its structure has three types: integral type, insert type and indexable type.
3. Carbide end mills: used for processing grooves and step surfaces, etc. The cutter teeth are on the circumference and end surfaces, and cannot be fed along the axial direction when working. When the end mill has end teeth passing through the center, it can feed axially.
4. Carbide three-sided edge milling cutter: used to process various grooves and step surfaces, with teeth on both sides and circumference.
5. Carbide angle milling cutter: used for milling grooves at a certain angle, there are two kinds of single-angle and double-angle cutters.
6. Carbide saw blade milling cutter: used to process deep grooves and cut off the workpiece, with more teeth on the circumference. In order to reduce friction during milling, there are 15'~1° secondary deflection angles on both sides of the cutter teeth. In addition, there are keyway milling cutters, dovetail milling cutters, T-slot milling cutters and various forming milling cutters.
Any interested items please feel free to contact:
Tungsten Alloy TSS Ball for Shotgun
Tungsten alloy is a kind of environmental protection alloy, its main components are tungsten, nickel, iron and other metal elements, the production process will not produce toxic substances, in the use of the process will not cause radioactive pollution, and tungsten alloy has the ability to resist radiation, so tungsten alloy in some areas instead of lead. Tungsten alloy ball bullets are often used in the military field for shotguns, prefabricated fragments, armor piercing projectiles and so on.
Tungsten tss ball are also used in shotguns. Shotgun is a hunting weapon, usually a shotgun. The shotgun barrel has a large caliber, and the bullets are shot out of the barrel and scattered into small balls. The power generated by gunpowder acts on each ball. In the past, old lead pellets were used. Metal lead is toxic, and excessive consumption of lead prey will cause certain injury or even death. If tungsten alloy ball bullets were used, there would be no such toxic contamination. Tungsten alloy ball ball is a kind of lead-free ammunition, high hardness, high temperature resistance, environmental protection, has become the most popular hunting gun ball in the eyes of hunters.
Tungsten ball have a high density, small size and large mass, and they have a high impact momentum when fired from the barrel. Changsha Jingxin provides high quality tungsten alloy ball products, can provide a variety of sizes, different surface treatment of high density tungsten alloy ball. Meet your various needs.
Any interested items please feel free to contact:
As an important refractory metal, tungsten has the highest melting and boiling points of all metals and the lowest vapor pressure of all metals, which is why it is used in aerospace, electronics, chemical, nuclear, and other extreme environments. We will now take a look at the properties and use of Tungsten Rods. Here are some answers.
Here is the content list:
l Tungsten Rods are characterized by specific property factors.
l Information on the use of Tungsten Rods.
The range of applications of conventional sintered tungsten products is limited by their low density, low strength, and poor plasticity. The products prepared from tungsten alloys are classified as Tungsten Rods, Tungsten Squares, Tungsten Plates, and Tungsten Balls depending on the shape of the product. The main difference is in their use, but their physical and chemical properties are similar, with the same high melting point, high density, high hardness, high strength, low coefficient of thermal expansion, high modulus of elasticity, resistance to wear and tear, high temperature and good electrical and thermal conductivity. The specific properties of Tungsten Rods are, of course, related to the ratio of the raw material. Most of them are alloys with the refractory metal tungsten as the hard phase and cobalt, nickel, iron, copper, and other metals as the binding phase. When the binder is copper metal, Tungsten Rods will vary in color, melting point, density, and electrical conductivity: as the copper content increases, cutting tungsten carbide rod will tend towards a copper color and have better electrical conductivity; as the tungsten content increases, Tungsten Rods will have a higher melting point and density.
Tungsten alloys are sintered alloys containing high density and strength, which is 50% of the density of PM products and lead products. This gives the tungsten carbide rod a low coefficient of thermal expansion, good thermal conductivity, and good material properties. At high temperatures, tungsten alloys act as a material with a high melting point and a low coefficient of thermal expansion. The addition of tungsten alloy elements improves machinability, toughness, and welding. With no heat treatment, low erosion and excellent heat resistance cracking dies are simple to manufacture and it has found widespread use in die casting.
Tungsten Rods are mainly used as a component in forging materials, tools and cartridges, light bulb tungsten wires, electrical contact points, heat conductors, crankshaft and cylinder tungsten wire barrels, and various components of heat resistant steels. Doped Tungsten Rods are used in the production of filaments for lamps or electron tube filaments, which are guaranteed to have significant resistance to high temperatures. Pure tungsten is a naturally occurring metal mined from the ground. In its raw form, pure tungsten is very brittle.
For more Tungsten Rods-related questions, please feel free to consult us, our official website is https://www.7jinxin.com/. With years of accumulated experience in R&D and production, we can provide you with more product services and technical support! Our mission is to provide the best possible service to our clients and to focus on building long-term partnerships that we believe will lead us to a win-win situation.
What Is the Main Products for Tungsten Alloy
Tungsten alloy products is used in different field, the main products is as below:
1.Tungsten alloy fishing sinkers series: bullet type, teardrop type, round tube type, semi-drop type, cylindrical with hole type.
2.Tungsten beads and balls series: φ1.5mm -φ10mm precision ±0.01mm, used for fish pendant counterweight, bullet, medical instrument counterweight, shotgun pellets; φ0.1mm-φ10mm precision ±0.1mm, used for oil drilling balance, shotgun pellets.
3.High-density tungsten-based alloy counterweight series: balancing hammer for machinery; flying hammer; oil drilling counterweight; dart bar; golf ball counterweight; racing car counterweight; cell phone and game machine oscillator; aerospace gyroscope; watch pendulum; balancing counterweight ball; anti-vibration knife bar.
4. Medical tungsten alloy ray shielding material series.
(1) Tungsten alloy grating blade.
(2) tungsten alloy protection canister - for medical radioactive shielding wall; shielding syringe - for medical radioactive liquid shielding; tungsten alloy memory - for storage (2) tungsten alloy protective canister - for medical radioactive shielding wall; shielding syringe - for medical radioactive liquid shielding; tungsten alloy memory - for storing radioactive materials in cans, boxes and other containers.
(3) Collimator - used for medical linear gas pedal and nuclear technology applications in the tungsten alloy series of detection container system collimator; Co60 shielding of other radiation.
5. Electrical material series: electrodes for EDM and resistance welding; high specific gravity electrical contacts, contacts in air circuit breakers.
6. Military series: armor-piercing bullets; submunitions, balls, rods, square grains, cylinders, other tungsten alloy electric upsetting blocks, tungsten alloy in nuclear technology applications
Any interested items please feel free to contact:
Tungsten Cylinder Counterweights refer to sintered composite materials consisting of at least one metal carbide. Tungsten carbide, cobalt carbide, niobium carbide, titanium carbide, and tantalum carbide are common constituents of Tungsten Counterweight. Tungsten Cylinder Counterweights are widely used in surface or underground mining, hydraulic engineering, bridge engineering, construction engineering, geotechnical engineering, and other fields.
Here is the content list:
l What are the characteristics of Tungsten Cylinder Counterweights？
l Classification of Tungsten Cylinder Counterweights
Tungsten Cylinder Counterweights have a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, and corrosion resistance. The high hardness and wear resistance of Tungsten Cylinder Counterweights are particularly outstanding, remaining unchanged even at temperatures of 500°C, and still having high hardness at 1000°C. The grain size of Carbide compositions (or phases) is typically between 0.2-10 microns, and the carbide grains are held together using a metallic binder. The binder usually refers to the metal cobalt, but for some special applications, nickel, iron, or other metals and alloys can also be used. The structural feature of Tungsten Cylinder Counterweights is that the high hardness of Tungsten Cylinder Counterweights themselves will cause great stress and deformation to the base material of the roller sleeve. Today, most roll press manufacturers use a special adhesive method to attach Tungsten Cylinder Counterweights to mounting holes on the roll cover substrate. The bonding strength of Tungsten Cylinder Counterweights and holes directly determines whether Tungsten Cylinder nails can be stably fixed on the roller surface. Therefore, to ensure that the Tungsten Cylinder Counterweights do not fall off, it is necessary to increase the strength of the whole wall of the Tungsten Cylinder Counterweights, select a high-strength adhesive, and install the Tungsten Cylinder Counterweights. In production operations, the protective underlayment layer formed between the Tungsten Cylinder Counterweights prevents direct abrasion of the roll surface by the substrate. In production and operation, Tungsten Cylinder Counterweights have to withstand high-intensity abrasive wear, fatigue wear, material impact, and shear force, so that the service life of Tungsten Cylinder Counterweights and the buffer protection layer complement each other.
The classification of Tungsten Cylinder Counterweights is carried out according to ISO standards. This classification is based on the material type of the workpiece. The binder phase composition is mainly used for its strength and corrosion resistance. Tungsten Cylinders consist of two parts: one is the hardening phase; the other is the bonding metal. The binder metal is generally an iron group metal, commonly cobalt and nickel. Therefore, there are tungsten-cobalt alloy, tungsten-nickel alloy, and tungsten-titanium-cobalt alloy. Containing Tungsten Counterweight, such as high-speed steel and some hot work die steel, the tungsten content in the steel can significantly improve the hardness and heat resistance of the steel, but the toughness will drop sharply. The main application of tungsten resources is also cemented carbide, that is, Tungsten Cylinder Counterweights. Carbide, known as the teeth of modern industry, is widely used in tungsten steel products.
If you are interested in our Tungsten Cylinder Counterweights products or have other needs, please feel free to contact us. Our official website is https://www.7jinxin.com/. Our high cost-effective products will bring you a better experience.
Carbide Burr is the best drill bit with a cobalt blend and helps work with hardening metal or steel. Besides, these bits use an alloy that includes 5%-8% cobalt. What’s more, this cobalt makes up part of the steel blend. That’s why the hardness of the bit never wears off with a coating.
Burrs also feature tungsten carbide, so they may not be effective when you try to use them in a drill. But, never worry; there is a way to use them.
You can use a ball or spherical-shaped carbide burr to draw concave cuts in your materials. Carbide burrs from as tiny as 0.20″ in diameter are useful for intricate carving projects.
Moreover, this tool is best for woodcarvers, stone carvers, and metal engravers. They can use carbide burrs in a hobby drill, micro motor, or in a high-speed handpiece.
You can use small carbide burrs of 0.20″ and .125″ diameter for rotary tools such as Micro Motor.
If you have any question about the carbide rotary burrs, you can contact us.