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Tungsten carbide grinding jar, is also known as cemented carbide grinding jar, consists of wolfram carbide and cobalt which is famous for its super high hardness. Therefore, the tungsten carbide grinding jar, which is made of tungsten carbide material, is of good hardness and abrasion resistance.The powder which is used for planetary ball mill can be in good crushing and do not pollute samples, and can meet the requirements on the hardness, wear resistance and comminuted that the ordinary ball mill jar cannot do. Working principle: As the necessary accessory of the planetary ball mill, during planetary ball mill grinding the powder, grinding jar, which is fill with balls and samples, grinding the balls and materials with the high speed. By the way of friction, impact and shear, the walls of grinding jar will produce intense energy to achieve very good crushing effect. The grinding jar is the container which provides space for completing grinding the powder. Characteristics: Tungsten carbide is with high hardness, good wear resistance, strength and toughness, anti-high temperature and corrosion, especially it is with the great advantage of high hardness and good wear resistance. Tungsten carbide will not out of shape even if in the 500?, and is still with high hardness in 1000?. Performance evaluation: Application fields:medical treatment/food/electrics/material/machinery/chemical industry, etc. Application:iron, aluminum, cobalt, chromium, plumbum, tungsten, molybdenum, magnesium, copper, tin, alumina, zirconia, silicon, Carbon, etc Material: tungsten carbide Grade:yg8 Content:tungsten carbide 94% cobalt 5% other 1% Temperature:-100-400? Density:14. 6g/cm3 Compression modulus:56mpa Bending strength=2320n/cm2 Elasticity modulus:510.0gpa Microhardness:17800mpa Volume:0.1l / 0.25l / 0. 5l / 1l Grinding way:dry/wet grinding Structural form:vertical type Acid and alkali resistant:yes Low temperature resistant:yes High temperature resistant:yes Leak tightness:ip60
Tungsten carbide nozzle, made of high grade tungsten carbide, is one of the spray nozzles. In another way saying, tungsten carbide nozzles are usually used to sandblasting, therefore, users also call them tungsten carbide sandblasting nozzles. The hardness reached over HRA90 degree while the anti-bending degree reached over 2300N/mm. On machining tungsten carbide spray nozzle, we do the precision grinding and surface treatment to achieve Ra0.1 of the bore roughness and the Ra0.025 of the R place of both ends. There is a scientific curvature radius design in the both entrance. This design can ensure a smooth transit of the thread. Due to the overall materials processing, and no elevation in the bore, the phenomenon of easy-bending and plugging has been improved comparing with the ruby nozzle. tungsten carbide nozzle Tungsten carbide sandblasting nozzles are manufactured from hot pressing with straight bore and venturi bore type. Due to its hardness, low density and excellent wear and anti-corrosion, Tungsten carbide sandblasting nozzle has been widely used in sandblasting and shot peening equipment, offering a long life with optimum air and abrasive use. We hold immense expertise in offering a precision-engineered array of Tungsten Carbide Nozzles in different sizes, grades and specifications. Our patrons widely appreciate our offered tungsten nozzles as these are resistance against corrosion, have sturdy construction and need less maintenance. Moreover, we provide these tungsten nozzles as per the specifications detailed by patrons. To ensure the presence of above named features in our offered a tungsten nozzles, we make use of good quality raw material in the manufacturing process. For the varied requirements of our clients, we are engaged in manufacturing, supplying, exporting and trading a wide range of Tungsten Carbide Nozzles. These products are extremely rugged in state and ensure longer functional life. All these products are easy to install and needs low maintenance. These products are available in different sizes and specifications. tungsten carbide nozzle Features: Need less maintenance Resistance against corrosion Durable Specifications: Material: Tungsten carbide Sizes: As per requirement
Tungsten carbide sandblasting nozzle also known as tungsten steel nozzles, type has a single inlet, double inlet and venturi nozzles. With high wear resistance, high hardness, high elastic modulus, high compressive strength, corrosion resistance, high impact resistance and other advantages. 30 times the wear life of steel, is three times the fine ceramic composite industry. As long as a negative high-pressure compressed air can rust, clean the surface of sa2.5-3.0 grade level. In hardware and machinery, casting rust polished glass mirror art of carving, sandblasting and other applications, are required preparation and sandblasting machine supporting tungsten carbide sandblasting nozzle. By their nozzles are in a variety of different designs of spray conditions, which use suitable nozzles needed to achieve optimum spray performance in use. Characteristics of the nozzle spray nozzle is mainly reflected in the type of shape that liquid from the nozzle opening formed and its operating performance. Named one spray nozzle is divided into a fan shape, tapered, solid stream (ie jet), air atomizing, flat nozzle, which is divided into a hollow cone nozzle cone and full cone two categories; while venturi nozzles (i.E. Mixing nozzle), strong cold (hot) and the outlet nozzle for hair tuyeres is reflected in the naming of the operating performance of the nozzle.
Tungsten carbide fan nozzle using heat treatment process, the overall high hardness, life expectancy is several times the stainless steel is widely used in washing cleaning, spraying, cooling, lubrication, dust control, fire protection, and other aspects of space and local humidification. Characterized by a tungsten carbide fan nozzle to produce high impact solid stream or fan spray jet angle of 0 ° -110 °. Spray nozzles such uniform distribution, the droplet size is small to medium. When the overlap requires a number of spray nozzles, spray tapering spray edge has a characteristic such that the coverage area of distribution. Spray angle refers to the angle of dispersed atomized liquid, even for the same nozzle, it also has a variety of spray angles can be selected for the specific needs of different customers, but even the same nozzle, at different pressures, the spray there will be a slight difference angle. Under normal circumstances, in the case of mounting height, constant pressure spray angle increases, its coverage is greater. Spray coverage is mainly affected by the height of the spray nozzle mounting angle and other factors, the other parameters are fixed at the nozzle, the nozzle spray angle, the more its wide coverage; mounting height of the nozzle is higher, the wider the spray coverage. Spray environment acid, alkali, high temperature, low temperature. The flow size of tungsten carbide fan nozzle spray is mainly affected by the pore size, pressure and the like. In general, the pore size of the nozzle holes, the greater the flow rate; under the same pore size, the greater the pressure, the flow rate will increase subsequently. In addition, the flow will be affected spray medium, the same aperture, under the same pressure and flow rate increases with reduced viscosity media.
Tungsten carbide oil nozzle mainly used in the oil and cooling water slurry erosion of the drill work. According to the drilling of the geographical environment of different designs using different water flow that water hole size and shape. Depending on the drill bit and interchangeability requirements for use with and without threads of two sub-threads, which non-threaded carbide nozzles are used in the cone bit, but carbide nozzles threaded application on pdc drill bit. According handling tools (wrench) have different cross-type points (four slots), y-shaped (3 slots), six square, within six square, plum-shaped and other five. Tungsten carbide nozzles are processed using precision machinery and carbide materials. In the processing tungsten carbide nozzles, we do precision grinding and surface treatment, in both the entrance has a radius of curvature of scientific design, which can ensure smooth passage of the thread. Because of the bulk material processing, no elevation in the borehole relative to the ruby nozzle clogging is easy to bend and has improved. Sintered tungsten carbide nozzles are straight holes and mounds to heat hot hole due to its high hardness, low density, wear resistance and corrosion resistance, has been widely used tungsten carbide blasting nozzles and the shot peening apparatus, ensure that the product in the best long-term use of air and abrasives.
Tungsten carbide pulsed nozzle for oil drilling, compared with ordinary nozzle, rop increased by 10 ~ 77%, single drill footage increased by 10 ~ 48%, the drilling technology to a new platform, access to significant economic and social benefits. Since the pulse nozzle cavity than imports and exports, using traditional methods can not suppress sintering powder metallurgy, and the use of powder metallurgy production principle, no welding production process, the product as a whole, durable and highly efficient. Tungsten carbide pulsed nozzle principle is different from the jet flow of the water within the chamber section of the nozzle, the two upper and lower reflecting surfaces hit, hit the surface of the beginning of the reflected pressure wave and the downward movement phase of the pressure wave is equal to the water formed wave superimposed with the lower surface of the reflector is hit by jets collide, resulting in strong shear stress circular, cut into the jet of the high instantaneous water bombs alternating vacuum forming, the vacuum generated in the high-pressure, high velocity water bombs discharged form a discontinuous flow of the water ejection, continuous power to overcome the shortcomings of the existing continuous small-jet nozzle, to improve the instantaneous impact force of the jet spray distance and the effective energy of the jet reaches the bottom of the water when.
Tungsten carbide cutting nozzle is a way of using high-pressure water cutting, it has block cutting speed, high cutting precision, long uninterrupted cutting, long life, predictability of a series of excellent performance. Widely used in metal, ceramics, stone, glass and cutting other materials. Tungsten carbide cutting nozzle working principle is to change the cross-section through the nozzle of the fan within the fan-shaped nozzle hole by shrinkage of the high-pressure section of the pressure of the water can be gathered together and converted into kinetic energy, and finally discharged to the outside in the form of a high pressure water jet material for cutting. Water cut is a cut way in the world's highest production capacity, it is superior to other processing techniques such as flame cutting, plasma processing, laser machining, edm, milling and processing car. Meanwhile, the water cutting does not produce harmful gases or liquids in the surface does not generate heat, it is truly multi-functional, high efficiency, cold cutting. Water cutting is a cold cutting state, the direct use of the kinetic energy applied to the abrasive water jet cutting metals to achieve the purpose of cutting, the cutting process without chemical change has no effect on the physical and chemical properties of material to be cut, no heat deformation, high narrow kerf, precision , cut smooth, clean pollution, etc., can be processed traditional processing and other processing methods can not be processed or difficult to machine materials, such as glass, ceramics, composite materials, reflective materials, chemical fiber, heat-sensitive materials.
JH Ruby Coil Winding Machine Wire Winder Guide Tubes Nozzle Ruby Nozzle 1. Good toughness 2. Low friction coefficient of the ruby head 4. The rate of will be extremely low 5. Processing Limit:d1 Y 0.2 mm D1 Y 0.7 mm
JH Ruby Coil Winding Machine Wire Winder Guide Tubes Nozzle Ruby Nozzle 1. Good toughness 2. Low friction coefficient of the ruby head 4. The rate of will be extremely low 5. Processing Limit:d1Y 0.2 mm D1Y 0.7 mm
JH Ruby Coil Winding Machine Wire Winder Guide Tubes Nozzle Ruby Nozzle 1. Good toughness 2. Low friction coefficient of the ruby head 4. The rate of will be extremely low 5. Processing Limit:d1Y 0.2 mm D1Y 0.7 mm
JH Ruby Coil Winding Machine Wire Winder Guide Tubes Nozzle Ruby Nozzle 1. Good toughness 2. Low friction coefficient of the ruby head 4. The rate of will be extremely low 5. Processing Limit:d1Y 0.2 mm D1Y 0.7 mm
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Tungsten carbide roll ring has characteristics of good wear resistance, high temperature red hardness, thermal fatigue resistance and thermal conductivity and high strength, it is a key component of high-speed wire rod rolling. Tungsten carbide roll ring is mainly used for high-speed wire rod mill pre-finishing unit, and finishing units, reducing sizing unit, rolling play area and improve the performance of rolling material effect decreases. Tungsten carbide roll ring line production to meet the needs of making various types of high carbon steel, alloy steel and special steel. Tungsten carbide roll ring material is developed on the basis of the tungsten carbide tool material, it is made of refractory metal compound (WC) as a matrix, and transition metals (Co, Fe, Ni) as the binder phase. Tungsten carbide roll ring has good abrasion resistance, high-temperature red hardness, thermal conductivity and high temperature strength and other characteristics, it has been widely used in making high-speed wire rod, bar, rebar, and other rolling seamless steel pipe production. During normal use, the surface due to the impact of high frequency alternating thermal shock and hot water fog and thermal fatigue cracking, commonly known as crack, different forms of wear or fracture failure is the main reason in this case appears thermal fatigue crack initiation and propagation. When the groove face cracked it must be grinded to prevent crack propagation caused by abnormal breakage roller ring. Tungsten carbide roll rings performance requirements When the roller ring used, the roll diameter roller ring is smallest , and line the fastest, roll ring subjected to thermal shock highest frequency. Therefore, it requires roll ring material having excellent abrasion resistance to ensure the dimensions of finished wire after a certain amount of rolling ; and requires a high fracture toughness to resist the thermal expansion of the higher frequency shocks caused thermal fatigue cracks; the same time, need to have a high thermal conductivity to suppress thermal fatigue crack initiation. During use, the maximum operating speed of tungsten carbide roll rings up to 18000 r / min, and rolling up to the maximum temperature of the contact 1200 ¡æ. It is in this harsh working conditions, the roller ring wear resistance, toughness, resistance to thermal fatigue performance high demands. To achieve these performance requirements, often using coarse-grained low cobalt grades roller ring, such as WC-6% Co. Tungsten carbide roll ring characteristics 1. Contains a microscopic hard spots, have a high resistance to abrasion 2. The macro-hardness is high, up to 69 ~ 81HRC or more. 3. Material hardening tendency serious. 4. Material with low thermal conductivity. 5. High intensity of the material. 6. Stable chemical properties, very high melting point. Tungsten carbide roll ring using requirements Heap of steel rolling process is inevitable accident, the heap of steel rolling various causes overheating will cause the roller ring side, while at the other side of the water-cooled quenching effect, causing the roll surface heat cracks, restoring rolling when this heat leaving the roller ring rapid crack propagation easily cracked. Because rolling at high speed rolling finishing train, the temperature is high, when the stack of steel metal deposited on the roller ring groove around, due to the effect of high temperature molten metal ring attached to the roller surface, forming a "product turtle" phenomenon. In this case, local heating roller ring, resulting in heat stress, heat fatigue easily formed, if the roller ring continued use, the potential cause fracture failure. Remove the stack of steel roll ring, regardless of the groove is available, should be re-grinding, in order to eliminate the stress roll ring to prevent thermal fatigue crack initiation and propagation. Tungsten carbide roller ring has good heat conduction properties, down less hardness at high temperature, good thermal fatigue resistance, wear resistance, high strength, and other characteristics,so it is suitable for high speed rolling, and it become the good choice for roller ring.
The composite roll is that cemented carbide roll rings and steel shaft are compounded into a whole through the special method, which is used for rolling round steel, screw steel, flat steel and angle steel, etc. We can supply various specifications of composite roll with |¦Ì300-500mm and 30-150mm of thickness. Our company possesses powerful R&D experience on cemented carbide roll ring. We develop a new pre-stressed composite roll independently. The roll has these characteristics: excellent structure, advanced manufacturing technology, is safe and reliable during use, big feed quantity of single groove, small quantity of grinding. It resolves the large-diameter roll ring application problems successfully. Advantages of composite roll The quality of steel products can be promoted. The surface quality and tolerance of products can be thoroughly improved. The negative deviation can be controlled more precisely. The change frequency of groove and roll can be reduced. The downtime can be shorted. The labor intensity can be reduced in rolling workshop. Increasing productivity and output can create greater economic benefit at the same time. The rejection rate of products can be reduced. Greatly reducing the steel cost for per ton is effectively way for enterprise to reduce cost and increase benefits.
Tungsten carbide roller has characteristics of good wear resistance, high temperature red hardness, thermal fatigue resistance and thermal conductivity and high strength , have been widely used in high-speed wire rod, bar, rebar, seamless steel tubes, etc. Domestic production of tungsten carbide roller materials mostly WC- Co, WC- Co- Ni- Cr two series, and the content of Co, Co- Ni - Cr is in the range of 6wt% ~ 30wt%. From the use of perspective, tungsten carbide rollers has good mechanical properties, its flexural strength up to 2200 MPa or more, shock toughness up (4 ~ ;¡§¡é 10^6 J/ m^2, Rockwell hardness (HRA) is up to 78 to 90, widely in the high-speed wire rod rolling process, which is much higher than single-slot chilled cast steel or high speed steel rolls. Tungsten carbide is made of tungsten carbide powder and binder phase (such as drilling, nickel, etc.), and then pressing and sintering, regardless of the conditions under cold rolled or hot rolled has excellent wear resistance, tungsten carbide rollers has been widely used in pre-finishing mill and finishing of high-speed wire rod currently. On the performance of tungsten carbide roller in hot-rolling wire rod , the material must meet the following requirements: 1. Sufficient anti-fracture strength; 2. Good abrasion resistance; 3. The smooth surface finish; 4. Excellent corrosion resistance, thermal fatigue, thermal cracking performance. Tungsten carbide roller rings can working in bad conditions , small profile rolling (especially rebar rolling) process conditions is harsher than the high-speed wire rod, and therefore corresponds to the profile rolling ,tungsten carbide rollers recommend using high binder phase carbide. Tungsten carbide roller material design Pre-finishing all vehicles roller should ensure its high toughness, strength, rigidity and thermal conductivity, followed before considering its wear resistance. When designing each vehicles roller, pre-finishing materials should choose carbide grades of Co, Co- Ni- Cr binder content is high (greater than or equal to 25wt%) , requiring an average WC grain size of coarse (5|¡§¬m ~ 6|¡§¬m), to obtain a higher shock toughness, proper strength and hardness. For the finishing of the roller movements, particularly the last two rollers of the finish rolling, which suffered load is small, and high relative velocity of the material to be pressed (80 m / min ~ 120 m / min). In this case, the wear resistance of the roller to be the most important requirements, and must ensure the strength , timpact toughness and hardness of a reasonable match, so the binder of Co / Ni content ratio and the average grain WC control of particle size and other factors must have greater control in front of different pre-finishing rolling roll. Tungsten carbide roller category According to the structure of tungsten carbide rollers, it can be divided into solid tungsten carbide roller and composite tungsten carbide roller. Solid tungsten carbide rollers have been widely used in pre-finishing and finishing stands high speed wire rod mill (including fixed reducing the rack, pinch roller rack). Composite tungsten carbide roller is made of cemented carbide and other materials, and it can be divided into tungsten carbide composite roll rings and solid tungsten carbide composite roller. Tungsten carbide composite roll rings mounted on the roller shaft; solid tungsten carbide composite roller will be directly cast in the roll axis to form a whole, a large load is applied to the rolling mill. Tungsten carbide roller production process control Tungsten carbide rollers produced by powder metallurgy method, the key to its process control is the chemical composition of the material and the mixture was prepared, pressed molding, sintering and deep processing and other preparation process parameters. 1. Preparation of starting material (WC focus quality): As the WC raw material and quality control of the use of different levels of quality may fluctuate, resulting in adverse effects on microstructure. 2. Preparation of the mixture: Mixture preparation is the key to the production process of the roller, the roller of failure modes - trachoma, mainly generated by this procedure. 3. Pressing: roller pressing is an important process of the roller mill. 4. Sintering: roller sintering is to determine the final quality of the roller production processes, use of advanced low-pressure sintering technology, HIP sintering technology can greatly improve the performance of roller. 5. Deep processing: deep processing rollers have a greater impact on the quality and accuracy of the roller surface.
The three dimensional carbide roll rings is the main products of tongda, our three dimensional carbide roll rings is used in reinforcement wire cold rolling and forming, we had more than 15 years experience to processing the three dimensional carbide roll rings, and exported to 21 countries for more than 8 years, till now, 0 complain of the quality. Our three dimensional carbide roll rings include PR,CA,CO,RT,RO,FO type. Also could make it as per customer requirements. The three dimensional carbide roll rings blanks we used are sintered in HIP furnace, 100% virgin material. Application Requirements 3-Dimensional Cemented Carbide Roll Rings 1.Any striking on and collision with roll rings is strictly prohibited. 2.When in installing the whole assembly pf roll rings, the clearance of the bearings should be on the tighter side. 3.The precision of rotation of the whole assembly(circular runout and runout)should be kept within ¡¨¤0.05mm. 4.The fitting of the whole assembly and the roll rings shall be a transitional fitting and fastened. 5. The roll rings should not be cooled by water or oil water emulsion. 6. The joints of the pipes in the internal cooling system should not be leaky and it is advisable that no inner cooling is applied.
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