2014年3月23日星期日

Molybdenum does to the human body

1. Maintain the myocardial energy metabolism: Kekai molybdenum chart is a composition of several kinds of enzyme in myocardial, play an important role in myocardial energy supplies. Keshan disease is a kind of cardiomyopathy, has proved that selenium deficiency is one of the causes, but more direct reason is the lack of molybdenum.
2. Molybdenum and immune: on the immune function of patients with keshan testing found that specific cellular immune function is reduced, molybdenum crucible deficiency crowd of supplements molybdenum immune function recovery. But too molybdenum also have damage to the immune function, and this has been confirmed in the animal experiments.
3. Adjust the thyroid gland secretion: research has shown that in keshan disease ward in the crowd and molybdenum and selenium, can adjust the thyroid function, thyroid function returned to normal.
Molybdenum deficiency may be one of the cause of esophageal cancer.
The Chinese nutrition society made the daily diet of molybdenum disk "safety and appropriate intake" reference indexes, infants less than 6 months each 0.03 ~ 0.06 mg per day, 1 year old of less than 0.04 ~ 0.08 mg per day, 1 over the age of 0.05 ~ 0.10 mg, 0.06 ~ 0.15 mg, aged 4 7 years old of above 0.10 ~ 0.30 mg per day, 11 years of age or older to adult is 0.15 ~ 0.50 mg per day per person. This index and the scientific research committee of food and nutrition council estimates of "safe and appropriate

2014年3月19日星期三

Tungsten bar red pigment and pigment Fast precipitan Metal catalyst

used in the manufacture of alkaloids , ink , fertilizers , Kekai tungsten bar red pigment and pigment Fast precipitan Metal catalyst , molybdenum salts , can also be used to make flame tungsten boat and suppression of pollution- water system Pr
eparation , also used as galvanizing , polishing agents and chemical reagents.

2014年3月18日星期二

The use of tungsten bar pellets

Tungsten alloy ball density, small size, small size, high specific gravity field components can be used as needed. Wolfram Alloy can be used as a golf ball counterweight , fishing sinkers , military counterweight , missile warheads, wear
A bomb warheads, Kekai Tungsten & Molybdenum technology tungsten alloy cartridges , prefabricated fragments ; also as a counterweight oil drilling platform And a number of other high- confidential areas, such as balancing the phone vibrator , pendulum clock and automatic watches to see, Shockproof holder, flywheel counterweight . These areas need to use tungsten carbide ball pellets .

2014年3月17日星期一

Carbide - Tungsten Steel & Tungsten bar


Tungsten steel is carbide, also known as tungsten alloy. Hardness can reach 89 ~ 95HRA, reason, tungsten steel products (commonly tungsten carbide rods steel watches), with easy to be worn, not afraid of hard annealing, but brittle characteristics. 
The main components of carbide tungsten alloy carbide and cobalt, which accounted for 99% of all ingredients and 1% other metals, it is also known as copper tungsten
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 cutting cast iron, 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.

2014年3月12日星期三

Tungsten bar saw blade


Cold rolled metal blade also referred to as Kekai tungsten wire for cutting steel, non- ferrous materials circular saw blades in normal condition in general. Welding using silver soldered to the cemented carbide cutting tip of the tooth of the outer peripheral portion of the steel sheet of high quality carbide , the tip is ground to a design suitable for cutting material . Divided according to use -and TA regrind type ( one-time ) two. Past are using is called Feng hacksaw ( HSS circular saw blades ) , with a band saw tungsten tube sawing machine used ( all with high-speed steel tool steel as raw material ) , but there is a difference cutting efficiency , ( not fast cutting ) , tool short life problems. To solve these problems , the development of a portion of the blade of the circular saw blade welding head . Now, this saw blade is becoming mainstream metal material cutting . It is particularly worth mentioning is that only a small amount of coolant can be processed , and easy to manage disposable blade cold saws TA tendency to increase very rapidly in China and tungsten weights . Due to heavy industry as the core of the steel , auto parts processing industry and metal processing industry , we need to cut solid steel bars, rods , stainless steel rods and other raw materials , metal circular saw blades currently in use , carbide cutting blade only wood, plexiglass / acrylic, copper , aluminum and other soft materials , in the face of this solid material cutting becomes "powerless ."

2014年3月6日星期四

Tungsten Steel & Applications


Tungsten steel is carbide, also known as tungsten weights alloy. 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 carbide tungsten filaments carbide and cobalt, which accounted for 99% of all ingredients and 1% other metals, it is also known as tungsten ingot 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 cutting cast iron, 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.

Insufficient global supply of tungsten bar growing trend


Tungsten is one of the world most hard materials texture, this metal to extreme heat - especially high-calorie - has a remarkable capacity, in addition to the vacuum tube filament incandescent filament outside (the latter is indeed still in use, but only 3% of all uses of tungsten), also widely used carbide tools (half of Kekai tungsten alloy is used for this purpose), oil and gas exploration in the "hard steel" drill, rocket engine nozzle and cathode-ray tubes, irreplaceable importance.
Tungsten is being increasingly applied to new technologies. High hardness, high stability and ability to withstand extreme temperatures they have, making it an ideal material for the electrodes and components used in touch screen. With smart phones and tablet devices for explosive applications touchscreen technology, the world demand for tungsten ball in the original annual growth rate of 6% on the basis of further surge.
China's tungsten production accounts for over 80% of world production, has slashed exports of tungsten, has now become a net importer of this precious metal. The control of exports of tungsten balls did not show any signs of loosening, which was used for the country's manufacturing sector. Therefore, the rest of the world will find another new sources of supply.
Russia has some reserves, but will remain 70% for domestic use. People also recovered from the use of existing equipment and spare parts in tungsten, but even this source has now also applied to the limit, for the time being there is no sufficient new resources appear.
Right now, the removal of China and Russia, only five tungsten mine as a major supplier of the global market. A recent British Geological Survey report released a list of the existence of the economic value of the metal, "endangered", which topped the list of tungsten.

2014年3月3日星期一

tungsten bar electrode


<br />
<span style="background-color: white;"><span style="font-family: lucida grande, tahoma, verdana, arial, sans-serif;"><span style="font-size: 14px; line-height: 21px;">The biggest use of tungsten, also not manufacturing filament, but manufacturing tungsten steel. Each year, 90% of the world's&nbsp;</span><a href="http://www.china-tungsten-molybdenum.com/key-tungsten-filaments-238/" style="font-size: 14px; line-height: 21px;">Kekai tungsten filaments</a><span style="font-size: 14px; line-height: 21px;">&nbsp;is used in the manufacture of&nbsp;</span><a href="http://www.china-tungsten-molybdenum.com/key-tungsten-ingot-278/" style="font-size: 14px; line-height: 21px;">tungsten ingot</a><span style="font-size: 14px; line-height: 21px;">&nbsp;steel. In ancient China, often have so-called "very sharp" nod, said "water margin" inside the hair on the "green beast" yang2 zhi4 one nod to the blade of a blow, hair was cut in half. These legends are exaggerated, however, there are some knife is very sharp. According to the modern analysis with chemical method. Originally, containing tungsten in the steel knife! Now, people use the&nbsp;<a href="http://www.china-tungsten-molybdenum.com/key-tungsten-electrode-274/">tungsten electrode&nbsp;</a>and iron together, refined into a tungsten steel. Tungsten steel containing tungsten by 9-17%.</span></span></span><span style="background-color: white; font-family: 'lucida grande', tahoma, verdana, arial, sans-serif; font-size: 14px; line-height: 21px;">&nbsp;</span>

Tungsten bar alloy rod

Tungsten alloy rod is composed of metal powder in the order of refining of high temperature, and use special high temperature powder refined but become, such as tungsten alloy rods of thermal expansion coefficient is very low, such cases of thermal conductivity of metalKekai tungsten balls rod is good material, in the case of high temperature, tungsten alloy rods as a high melting point, low thermal expansion coefficient of the material, the addition of tungsten alloy five elements to improve workability, toughness and welding. Material performance is built on a manufacturing tungsten bar rods eliminate material handling problems related with other tools. Tungsten alloys are of great value in military and industrial value, is a special kind of strategic materials, are made of metal tungsten rod application and military field, can to a large extent, improve the performance of aircraft, vehicle, but also can play the role of it is that he has a high accuracy, can be its speed is very fast. Tungsten rods with their special properties, such as low thermal expansion and good thermal conductivity, enough resistance resistance, high modulus of elasticity. So tungsten rods are widely used in various fields. Such as support of wires, import, printer needle, all kinds of electrodes and Shi Yinglu, filament, high-speed tools, automobile automatic products, sputtering target materials.