Used as an electrode . Tungsten can be pulled into a very fine wire, but very high melting point . Other applications include : Due to a very high melting point of tungsten , commonly used in aerospace and high-temperature applications, molybdenum plate such as electronics, heating , welding, such as gas tungsten arc welding . Tungsten is very hard, very close , so ideal for making heavy metal alloys , such as alloy is used in armor , heat sinks and high density applications such as weights , balance weights , boats and aircraft weights and so on. Because tungsten is very tight , darts often containing 80-97% tungsten . Tungsten high-speed steel , sometimes containing 18 % tungsten . Sheet of turbines , durable protective layer portion and the tungsten-containing high-temperature alloy ( Hastelloy alloy , stellite , etc. ) . tungsten carbide inserts Using tungsten bullets instead of lead . Tungsten tungsten carbide plate as catalyst, inorganic colors. Tungsten disulfide is a high temperature lubricant , which remained stable at 500 ° C . Since the thermal expansion of tungsten and similar borosilicate glass , which is used to make glass / metal seal tungsten and nickel, iron and cobalt alloys are used to make heavy alloy , this alloy is used in kinetic energy of the bullet weight to replace depleted uranium . Tungsten in an integrated circuit is a connection between the road thing . Erosion of the insulator in the contact holes of silica , into tungsten, polished to connect the transistor. Typical contact holes as small as 65 nm. molybdenum bar Tungsten is one of the hardest material , is used in machine tools and abrasives .
Molybdenum rods having a high melting point, good thermal conductivity and low thermal expansion properties. At high temperatures, can be anti-oxidation, high strength.
2014年7月6日星期日
2014年7月2日星期三
Molybdenum plate thermal expansion coefficient
High thermal conductivity and low thermal expansion coefficient, good thermal shock resistance, electrical conductivity and wear resistance, is molybdenum plate widely used in the aerospace field, which comprises means for interconnecting solar array spacecraft molybdenum foil sheet. However, molybdenum is relatively poor weldability and high temperature strongly molybdenum bar oxidized, the oxide film is no protective effect, so the surface to tungsten carbide inserts be plated molybdenum modification. As the silver brazing with good performance, usually silver plating surface of the molybdenum to improve the weldability and to reduce or prevent the oxidation of molybdenum.
molybdenum crucible tungsten electrode the energy
Tungsten carbide is the abrasive and turn with the most common materials, and often the best medicine tungsten radioactive material is used as shielding material. Transportation fluorodeoxyglucose general use molybdenum plate tungsten container, tungsten electrode the energy fluorodeoxyglucose 18F lead container can not be used. Tungsten oxide in the ceramic glaze is used, calcium or magnesium used in the phosphor tungsten. In nuclear physics and nuclear medicine tungsten crystals were used as tungsten bar. Tungsten is used as the X-ray target and in the electronic oven as a heater. Tungsten-containing salt is tungsten carbide inserts permanent in the chemical and leather industries. Bronze tungsten oxide is used in the painting. Because of its low sensitivity to tungsten carbide is used as jewelry, in addition to it's very hard because it is not like other metal polishes are scratches. Some instruments use tungsten-hyun. Appearance of high-purity tungsten gray or dark gray metallic luster, the main ingredient of material for casting; machining cutter and heads, conductor of heat; steelmaking ingredients and additives, advanced molybdenum bar automobile crankshafts, cylinder ingredients and electrodes used to guns, artillery, rockets, satellites, aircraft and ship.
2014年6月27日星期五
molybdenum bar Chemical properties of tungsten copper advantages
Chemical properties of tungsten copper advantages
Tungsten copper is the use of plasticity, high electrical conductivity, etc. High purity tungsten powder excellent features and high-purity copper metal powder by isostatic pressing, sintering temperature, dissolved copper molybdenum bars infiltration
Refining process of composite materials. Broken arc performance, good thermal conductivity, low thermal expansion, high temperature softening, high strength, high density, high hardness.
Advantage
High conductivity, high metal removal rates, and therefore high productivity.
High hardness, long life.
High-density, high surface finish tungsten bar machining mold.
Tungsten copper internal organization uniform. [1]
2 chemical properties
The main chemical composition%: Tungsten W70.00 copper Cu30.00
Density g/cm3 :13.8-14 conductivity% IACS: 42 Hardness: 185HV flexural strength Mpa: 700 softening temperature ℃: 900
Tungsten copper, Grade: W-70 molybdenum crucibles (W72, W75, W80)
2014年6月25日星期三
molybdenum bar uses tungsten copper
Resistance welding electrodes
Resistance welding electrode combines the advantages of tungsten and copper, high temperature resistance, arc ablation, high-intensity, heavy, electrical conductivity, thermal conductivity, ease of machining, and has issued
Coolers sweat properties, due to the high hardness, molybdenum bars high melting point, tungsten has anti-adhesion characteristics, often used for a certain wear resistance, high temperature welding, welding electrodes.
EDM electrodes
EDM electrodes tungsten steel, high-temperature super-hard alloy when die to be electrical erosion, common electrode wear big, slow, and tungsten and copper corrosion, high speed, low loss for
Consumption rate, precise electrode shape, excellent processing performance, to ensure the accuracy of the workpiece is greatly improved.
High voltage discharge electrode
High voltage discharge electrode voltage vacuum tungsten bar discharge tube at work, contact material time within a few tenths of a few thousand degrees Celsius temperature, while the ablation resistance of tungsten copper
, High toughness, good electrical conductivity, thermal conductivity to discharge stable job to provide the necessary conditions.
Electronic Packaging Materials
Low expansion characteristics of the electronic packaging materials both tungsten, and copper having a high heat conductivity, thermal expansion coefficient and thermal conductivity of the material can be adjusted by the added components
To change, and thus to facilitate the use of the material provided.
Large diameter copper tungsten is mainly molybdenum crucibles used for high-temperature parts of the device, the small-diameter copper tungsten electrode is mainly used for thread machining.
2014年6月23日星期一
molybdenum bar Tungsten rod What role
Tungsten is a rare metal, is also an important strategic materials, in ancient times was called "heavy stone." 1783 Air Asia was named after the Spanish Depp. Tungsten content in the crust 0.001%. Tungsten minerals have been molybdenum bars found in 20 species. Tungsten deposit is generally accompanied by granitic magma activity and the formation. After tungsten smelting after the silver-white glossy
Metal, high melting point, great hardness. Tungsten is a rare refractory metal belonging to the sixth period of the periodic table (second long cycle) of Group VIB. Tungsten is a
Kind of silver-white metal that looks like steel. Tungsten high melting point, low vapor pressure, evaporation rate is also small. Chemical properties of tungsten is very stable at room temperature with the air and water when not
The reaction, insoluble in hydrochloric acid, sulfuric acid, nitric acid and alkali solution. Was dissolved in a mixture of nitric acid and aqua regia, and hydrofluoric acid. High temperature with chlorine, bromine, iodine, carbon, nitrogen,
Sulfur and other compounds, but does not fit with the hydrogenation
Tungsten mostly for the production of special tungsten bar steels. Widely used in high-speed steel containing 9% - 24% tungsten, 3.8% - 4.6% chromium, 1% - 5% vanadium, 4% - 7% cobalt
, 0.7% - 1.5% carbon. Characteristics of high speed steel is high in the air to enhance the tempering temperature - lower (700 800 ℃), automatic quenching, therefore, until
600-650 ℃ also maintain high hardness and wear resistance. Alloy tool steel tungsten steel containing 0.8% - 1.2% tungsten; chromium-tungsten silicon steel containing 2% - 2.7% tungsten Chromium-manganese steel containing 0.5% tungsten - 1.6% tungsten; -; 9% chromium tungsten steel tungsten containing 2%. Tungsten steel used in the manufacture of various tools: such as drills, milling cutters, pull
Wire mold, die and a male mold, air support tools and other parts. Magnet tungsten containing 5.2% - 6.2% tungsten, 0.68% - 0.78% carbon, 0.3% - 0.5% chromium Magnet
Steels. Tungsten-cobalt magnets containing 11.5% - 14.5% molybdenum crucibles tungsten, 5.5% - 6.5% Mo, 11.5% - 12.5% ??cobalt hard magnetic materials. They have high magnetization
And coercive force.
2014年6月20日星期五
molybdenum bar Tungsten and molybdenum
Tungsten and molybdenum have high melting point, high strength hardness, molybdenum bar good high temperature performance, low resistivity, thermal expansion coefficient, electron work function of small features, is the most widely used high-temperature
Metal materials. My company production of a variety of pure tungsten, pure molybdenum tubes, rods, plates, ingots, crucibles and various shaped products. Such as high temperature furnace parts, high
Temperature crucibles, tubes semiconductor components, lamp anode, various electrodes, glass, industrial parts, galvanic porous and composite casing and the like. Tungsten crucible, tungsten tube
, Tungsten and tungsten-rhenium alloy plate is an important component of molybdenum crucible Sapphire Dan Changjing stove and MOCVD; various large tungsten tube mandrel, forming, feeding station is connected to the furnace and quartz glass
Other important components of high temperature furnace; tungsten and molybdenum tube, tungsten and molybdenum crucible electrode is also indispensable for rare earth smelting industry consumables. Produced by our company through these products
Sapphire Dan Changjing many factories nationwide, MOCVD epitaxy facility, molybdenum plates quartz glass, high temperature heat treatment plants and rare earth smelting plant for many years, with excellent results.
2014年6月18日星期三
molybdenum bar tungsten pros and cons
CFLs ordinary tungsten tungsten poles pass, after heating can emit electrons in both sides of the lamp with a relatively high voltage to form an electric field, the electrons
Lamp will be accelerated, the formation of a certain flow rate and energy electrons, is drawn into the vacuum tube, which is filled with mercury, mercury is the electron current in the electric Child playing with a certain speed on mercury atoms that are excited mercury molybdenum bar atoms become excited state ions, known as happened step, the excited state of mercury over a very short Time to spontaneously fall back to its original state. While the release of ultraviolet light, ultraviolet light can not be used for lighting. Common energy-saving lamps have an ordinary lamp Tubes and getting mainstream trichromatic lamp, and has advantages compared to incandescent bulbs saving. The difference is that ordinary lamp color is low, but the lamp of the three primary colors The color showing natural sunlight, and the color and light efficiency is more than an ordinary lamp. Energy-saving light sources contain mercury. Since the boiling point of mercury is Low to evaporate at room temperature, molybdenum crucible after crushing discarded fluorescent tubes, and immediately distributed to the surrounding mercury vapor, allows instantaneous ambient air concentration of mercury per cubic
M 10 to 20 mg, the state's maximum allowable mercury concentration in the air of 0.01 milligrams per cubic meter. Mercury into the human body is difficult to be excluded. 1, the production During and after use of waste mercury contamination, mercury pollution is currently Western countries is considerable attention. 2, because it is glass, easily broken, bad transportation. Not Installed. 3, the power consumption is still too big.
4, easy to damage, short life, energy and money this sentence is that it is molybdenum plates not the best portrayal.
2014年6月16日星期一
molybdenum bar of the history of tungsten
Development of tungsten industry from the outset with the light bulb industry closely linked. In 1878, Edison (T.A.Edison) invented the carbon filament light bulbs.
But this bulb there is a serious drawback, mainly life is too molybdenum bar short. Nearly 20 years later (1897), osmium carbon filament yarn and tantalum wire was replaced, but the Os, Ta melting
Points lower, and thus low operating temperature and light effects.
1879 Edison carbon filament probation and hundreds of hours of use. Although the "carbon" has a high melting point (3550 ℃), but it has a low "sublimation"
Temperature. Sublimation at low temperatures directly from solid to gaseous state, making it easy to consume, life is short. And must be completely isolated from the air (will burn in air)
. A melting point of almost all the current (3410 ℃) tungsten wire, the advantage of lower melting point which is lower than the "sublimation" rate. Can be heated to a higher "carbon
Silk "higher temperatures. Tungsten same will burn in air,molybdenum crucible requiring bulbs evacuated.
To prevent sublimation of the filament within the lamp contains an inert gas such as argon gas is mainly (argon) and does not contain oxygen. So that part of the gas by collision
Of tungsten atoms can return to the filament. Although the inert gas increases the service life of the filament, but also paid a price. Since the original vacuum bulb
The increased presence of an inert gas heat conduction and convection, the energy away, so reducing the equilibrium temperature. Sublimation gas tungsten inert gas formed in the weak
The particles can also be formed on the surface convection within the lamp black spots.
In 1903, according to Jay zafirlukast (A.Just) and Hannah door (F.Hannaman) patents, Hungary for the first time to create a tungsten filament. It is the freedom of hydrogen containing carbon filament
Tungsten oxyhalide steam heated to a high temperature by the current, the carbon is completely replaced by tungsten. Incandescent filaments thus obtained contain more or less of carbon, not brittle
Very serious, and when using the lamp filament continuously densified filament thus vary the electrical parameters.
In 1904, Jay Sterling and Hannah door recognize the impact of carbon on the brittle carbon compounds mixed binder and tungsten, and then extruded into filaments, and then in hydrogen
Reduction by heating the metal. Tungsten prepared in this way is very brittle, but because it is a much better light efficiency, or to replace the carbon filament, osmium and tantalum wire filament lamp used for the production
Bubble.
Preparation of these methods are not fine tungsten wire. To solve this problem, in 1907, a low nickel content of tungsten alloy available, it is through machining methods
Prepared, but it is seriously hampered the application of brittleness. Until 1909, Coolidge (w.D.Coolidge) General Electric Company by powder metallurgy
Legal tungsten billet was then produced by machining ductile tungsten filament at room temperature, thereby laying the foundation for tungsten processing industry, but also laid the powder metallurgy
Foundation.
However, this "ductility" tungsten filament light bulb lit after showed significant brittleness. In 1913, Ping Qi (Pintsch) invented the thorium tungsten wire (ThO2 content of 1% to
2%), so that the incandescent lamp is greatly reduced brittleness. Initially, the filament sag (see anti-sag tungsten performance) is not a problem, because the filament
Straight wire, but after 1913, Langmuir (Langmuir) will be replaced by straight wire spiral wire, so that when the lamp, high operating temperature and weight to make the role of
Filament sag, so pure tungsten and tungsten thorium are difficult to meet the requirements.
In order to solve the short life tungsten sagging and other issues, in 1917, Perth (A.Pacz) invented the high temperature "deformation" of the tungsten filament. At first, he was in the preparation of pure tungsten
When using a refractory crucible roasting WO3, WO3 restore accidentally discovered this tungsten spiral made of tungsten powder resulting abnormal mysteriously re-crystallized by no sagging. Follow
Later, after 218 repeated experiments, he finally found that the addition of potassium and sodium silicate in tungstate (WO3 · H2O), after reduction, pressing, sintering, machining
And other prepared tungsten wire, after a fairly coarse recrystallized grain structure, neither soft and anti-sagging, this is the first non-sag tungsten wire. Perth found no fewer than laid
Vertical tungsten production base, now called the United States still does not sag tungsten as "218 tungsten wire", to commemorate this major discovery Perth.
However, the first production of non-sag tungsten brittle than thorium tungsten severe that some tungsten bulb factory insist on using thorium as a filament. But with no sag tungsten production
Process of continuous development and improvement, people gradually realize that tungsten oxide is added in the same K, Si, Al compounds that can make a good tungsten filament molybdenum plates at high temperatures
Anti-sag performance, while having been satisfied after recrystallization temperature ductility. This is now commonly known as "AKS tungsten wire," or "does not sag tungsten wire" or
"Doped tungsten wire," Mir doped chan Carolina (T.Millner) in 1931, this improvement will not sag effect is called "GK effect."
2014年5月19日星期一
it quickly regenerated in the passive film is destroyed chloride
Molybdenum is chemically very stable and will not be corroded by
hydrochloric acid, hydrofluoric acid, and alkali, but nitric acid,
concentrated sulfuric acid, aqua regia, or is hot corrosion of
molybdenum added is also an important element. Molybdenum at high
temperatures can molybdenum boat
solid reinforced to prevent chloride pitting, improve corrosion
performance dope also. Large demand for oil has forced people to
accelerate the exploitation of land and sea in deep reservoirs, and deep
reservoirs often subject to corrosive hydrogen disulfide, carbon
dioxide and pollution and high chloride brine, which contain molybdenum
from 0.15% to 0.25% steel has been widely used.
With the deepening and worsening conditions of the drilling depth, with higher molybdenum stainless steels and nickel-based alloys, such as alloy and alloy applications will continue to increase. Since the chromium in the steel surface to form a thin passivation film naturally has a protective effect, the stainless steel having corrosion resistance. sandblasted tungsten target In fact, this passive film molybdenum make more solid, and it quickly regenerated in the passive film is destroyed chloride. Increased molybdenum content on pitting of stainless steel to improve corrosion resistance and crack. The most widely used stainless steel containing molybdenum.
With the deepening and worsening conditions of the drilling depth, with higher molybdenum stainless steels and nickel-based alloys, such as alloy and alloy applications will continue to increase. Since the chromium in the steel surface to form a thin passivation film naturally has a protective effect, the stainless steel having corrosion resistance. sandblasted tungsten target In fact, this passive film molybdenum make more solid, and it quickly regenerated in the passive film is destroyed chloride. Increased molybdenum content on pitting of stainless steel to improve corrosion resistance and crack. The most widely used stainless steel containing molybdenum.
2014年4月28日星期一
molybdenum bar equipment and components for corrosion do
Another important use of tungsten, which is in rockets, missiles, spacecraft, and return-type nuclear reactors and molybdenum bar other important applications on the cutting-edge science. This is because the tungsten having excellent physical, mechanical, corrosion resistance and nuclear performance reasons. Such as tungsten alloy at 1900 ℃ high tungsten carbide ball is still large, and in such high temperatures, either steel or heat-resistant super alloys are melted into a liquid. Mainly used to manufacture various types of rocket engines without cooling throat; made with molybdenum crucible infiltration silver tungsten nozzle can withstand temperatures above 3100 ℃ for various types of missiles and aircraft; tungsten fiber composite materials produced by the rocket nozzle, the ability of 3500 ℃ or higher; in the chemical industry, equipment and components for corrosion do; do lubricants, pigments, and various reactions.
2014年4月3日星期四
Symptoms of lack of trace elements molybdenum plant mainly in
Symptoms of lack of trace elements Kekai molybdenum bolts plant mainly in
1 small plant, susceptible pest damage .
2 , leaves green, between the veins of old leaves show chlorosis or thickening was waxy . Between the veins swollen to bend down . Such as tomato leaf curl upward to form the edge of the white spots and litter .
3 , nodules of leguminous crops are not developed .
4 , leguminous crops effectively reduce the number of branches and number of pods, seed weight decreased . Poor grain filling , delayed maturity , grain is not full . So crops in the seedling stage , flowering bud stage to the spraying of fertilizer Mo ( Ammonium ) 2 - 3 times, spraying is about 80-150 pounds per acre . Soybean seed filling stage to maturity requires the largest amount of molybdenum may be appropriate foliar spray to increase the yield and quality of soybeans.
2014年3月23日星期日
The use and development of molybdenum materials in China
Molybdenum content is less on earth, and its content accounts for only zero point zero one percent of the earth's crust weight, molybdenum total reserves of about fifteen million tons, mainly distributed in the United States, China, Chile, Russia, Canada. Our proven Kekai molybdenum bolts metal reserves of one million seven hundred and twenty thousand tons, foundation reserves of three million four hundred and thirty thousand tons, is the world after the United States. molybdenum alloys concentration distribution in shaanxi, henan, jilin and liaoning province. To heavy metal reserves in the world is more than five hundred thousand tons of molybdenum with a total of six, henan luanchuan, jilin in China big Montenegro and shaanxi jinduicheng molybdenum boat on the list.
Xinnuo titanium tube and titanium alloy are higher-priced products
First of all, the price is a problem cannot be ignored,Xinnuo
titanium tube and titanium alloy are higher-priced products, the more it is one of the important reasons they do not have a lot of being applied; second, to refine the energy
requirements of Xinnuo titanium wire price tubing for sale is higher, power consumption is larger, the titanium
atoms separated from oxide needed electricity is higher than other metals such
as aluminum; and how to improve the comprehensive mechanical properties and
process performance, further study on the mechanical and biological
compatibility of zirconium bar wire price is very important, and make the necessary
clinical trials would provide the basis for the development of biomedical
titanium alloys
requirements of Xinnuo titanium wire price tubing for sale is higher, power consumption is larger, the titanium
atoms separated from oxide needed electricity is higher than other metals such
as aluminum; and how to improve the comprehensive mechanical properties and
process performance, further study on the mechanical and biological
compatibility of zirconium bar wire price is very important, and make the necessary
clinical trials would provide the basis for the development of biomedical
titanium alloys
Impact on health editor of sodium molybdate plate
Eyes : Eye irritation causes.
Skin : Skin irritation.
Ingestion : May cause nausea , vomiting and diarrhea and other gastrointestinal irritation. This substance
Toxicological properties have not been fully investigated .
Inhalation : May cause respiratory tract irritation .
Chronic: No information .
First aid measures
Eyes: with plenty of water for at least 15 minutes , immediately flush eyes occasionally lift up and down
Eyelids . Seek medical assistance.
Skin : Get medical aid. Rinse skin with plenty of water for at least 15 minutes and off decontamination
Stained clothes and shoes. Wash clothing before reuse .
Ingestion: Never give anything by mouth to an unconscious person . Seek medical assistance. Do not induce vomiting . As
If awake and alert , rinse , drink milk or water 2-4 cupfuls.
Inhalation: from exposure and move to fresh air immediately . If not breathing , give artificial
Breathing. If breathing is difficult , give oxygen. Seek medical assistance.
Notes to physician : Symptoms active treatment.
Physical and chemical properties of sodium Kekai molybdate
Sodium molybdate Physical state : Solid
Sodium molybdate Appearance : White
Sodium molybdate density: 3.28
Molecular sodium molybdenum rod : Na2MoO4 · 2H2O
The molecular weight of sodium molybdate : 241.944
Stability and reactivity of sodium molybdate
Sodium molybdenum plate chemical stability : stable at normal storage in a closed container at room temperature
And conditional processing .
Conditions to Avoid : Incompatible materials , dust , excess heat.
Incompatibility with other materials : Strong oxidizers.
Dangerous decomposition products : irritating and toxic fumes and gases , toxic fumes of sodium oxide .
Skin : Skin irritation.
Ingestion : May cause nausea , vomiting and diarrhea and other gastrointestinal irritation. This substance
Toxicological properties have not been fully investigated .
Inhalation : May cause respiratory tract irritation .
Chronic: No information .
First aid measures
Eyes: with plenty of water for at least 15 minutes , immediately flush eyes occasionally lift up and down
Eyelids . Seek medical assistance.
Skin : Get medical aid. Rinse skin with plenty of water for at least 15 minutes and off decontamination
Stained clothes and shoes. Wash clothing before reuse .
Ingestion: Never give anything by mouth to an unconscious person . Seek medical assistance. Do not induce vomiting . As
If awake and alert , rinse , drink milk or water 2-4 cupfuls.
Inhalation: from exposure and move to fresh air immediately . If not breathing , give artificial
Breathing. If breathing is difficult , give oxygen. Seek medical assistance.
Notes to physician : Symptoms active treatment.
Physical and chemical properties of sodium Kekai molybdate
Sodium molybdate Physical state : Solid
Sodium molybdate Appearance : White
Sodium molybdate density: 3.28
Molecular sodium molybdenum rod : Na2MoO4 · 2H2O
The molecular weight of sodium molybdate : 241.944
Stability and reactivity of sodium molybdate
Sodium molybdenum plate chemical stability : stable at normal storage in a closed container at room temperature
And conditional processing .
Conditions to Avoid : Incompatible materials , dust , excess heat.
Incompatibility with other materials : Strong oxidizers.
Dangerous decomposition products : irritating and toxic fumes and gases , toxic fumes of sodium oxide .
2014年3月19日星期三
Molybdenum bars high thermal stability
Kekai Molybdenum bars high thermal stability , heat flux density can be usedHigh and local overheating of the circulating water system .Security: sodium molybdenum boat , but low toxicity compounds. molybdenum bolts poisoning can cause joint pain Cause low blood pressure and blood pressure fluctuations , neurological disorders, metabolic processes obstacles.
2014年3月18日星期二
Tungsten alloy fishing sinker with a small ball
Tungsten alloy is twice the density of the Kekai Tungsten & Molybdenum technology tungsten ball brass , larger than lead. Tungsten alloy fishing sinkers can throw more Far sneak into deeper , so anglers can fish in the water flow faster , because the fish are The flow of water in swimming . In addition, non-toxic and pollution- tungsten alloy . Tungsten alloy pellets can be produced A tungsten beads. Surface tungsten beads with two holes , so that the fishing line through . Tungsten beads can be used for plastic
Hose , used in the manufacture of noise can cause , including some fish , including tungsten balls bass curiosity. Fish will be the sound emitted by a tungsten bead attracted . In addition to making noise , tungsten beads in the water can
Shining , for those curious heavier fish , is a big attraction . Tungsten alloy
Small ball has completely changed the way fishing bait used in the past .
Bottom structure fishing sinker is also a key factor for fishing. As the use of tungsten alloy fishing sinkers Son , you can more easily feel the change fishing sinker . Tungsten alloy fishing sinkers . Whether it is Sand, gravel , rocks , mud or wood , you will be easier than ever to distinguish. If Is the traditional lead fishing sinkers , unless you then hang very heavy things , in order to feel phase With the changes. So tungsten alloy fishing sinker widely welcomed by anglers .
2014年3月17日星期一
Tungsten carbide alloy copper tungsten
Cold rolled metal saw blade is also referred to as "cold saw", used for cutting steel, the steel under the status of the material of the floorboard of the circular saw blade. Using silver welding Kekai Tungsten & Molybdenum technology molybdenum bars of hard alloy cutter welding in cutting out tooth plate peripheral department, carbide cutter grinding is suitable for the style by cutting material. According to the purposes are divided into regrinding and TA (one-time) two kinds. Ever is to use known as feng hacksaw (HSS circular saw blade), band sawing machine, band saw blade, (are in high speed tool steel as raw molybdenum alloys), but there is difference of cutting efficiency, (cannot fast cutting), short service life of cutting tools. In order to solve these problems, developed in copper tungsten saw blade part of the welding head. Now, this kind of circular saw blade is becoming the mainstream of the metal material cutting. In particular, can carry on the processing, only a small amount of coolant and saw blade is easy to manage a one-time TA cold saw increasing tendency at home and abroad very quickly. Due to steel as the core of the heavy industry, automobile parts processing industry and metal processing industry, requires cutting solid steel bar, the raw material such as iron, stainless steel rods, currently used metal circular saw blade, carbide saw blade can cut wood, organic glass/acrylic, copper, aluminum and other soft materials, in the face of the solid material cutting is "not".
2014年3月12日星期三
Tungsten filaments drill
One kind of tungsten carbide drill bit from the drill shank , drill body composition, both the Kekai tungsten electrode welded into one . Shank drill , drill the outer diameter of the body can be consistent , you can also inconsistent, inconsistent welding large diameter end of the cone -shaped bar . The utility model is the use of recycled scrap tungsten filaments drill bits, processed and treated after cutting , to conserve resources , reduce costs , and its strength, hardness and other characteristics are excellent for PCB drilling , to ensure that the use performance and service life .
2014年3月6日星期四
Carbide - Tungsten Steel & Applications
Tungsten steel is carbide, also known as tungsten carbide rods. Hardness can reach 89 ~ 95HRA, reason, tungsten steel products (commonly tungsten steel watches), with easy to be worn, not afraid of hard annealing, but brittle characteristics.
The main components of carbideKekai tungsten electrode carbide and cobalt, which accounted for 99% of all ingredients and 1% other metals, it is also known as tungsten steel.
Commonly used in high-precision machining, precision cutting tool materials, lathes, impact drill bit, glass cutter head, above the tile cutter, hard afraid of annealing, but brittle. Are rare.
Tungsten steel (alloy) with high hardness, wear resistance, strength and toughness, heat resistance, corrosion resistance and a series of excellent performance, especially its high hardness and wear resistance, even at a temperature of 500 ℃ also remained unchanged, at 1000 ℃ still very high hardness. Carbide is widely used as a material, such as turning, milling, planer, drill, boring knife, for tungsten filament, nonferrous metals, plastics, chemical fiber, graphite, glass, stone and ordinary steel can also be used to cut resistance material difficult to process hot steel, stainless steel, high manganese steel, tool steel. New carbide cutting speed is equal to the number of times the carbon steel.
Tungsten steel (alloy) can be used to make drilling tools, mining tools, drilling tools, measuring tools, wear parts, metal grinding, cylinder liners, precision bearings, nozzles.
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