Tungsten Powder Price

How to Make Fishing Jigs 2

Details: Category: Tungsten Information; Published on Wednesday, 27 August 2014 08:56; Written by Sherry; Hits: 487

Then quickly take a pinch of heavy silk, lay it against the cement, and wrap a few turns of the wire around it. Then add cement, lay another pinch of heavy silk against it, and tie a few more turns of wire around the heavy silk.

And Keep doing this until you build up a thick body of heavy silk around the hook, concealing most of it except the point and the barb.

When you have the full amount of heavy silk on the fishing jigs head, finish the jig tying by wrapping the rest of the thread as tightly as possible over the jig. Then end it by tying a series of silk-hitches.

Finally, cover the wire wrapping with a heavy coat of clear quick-drying cement.

how-to-make-fishing-jigs

The followings are the finished fishing jigs with this ways.

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Application of Tungsten Alloy in Military Industry

Details: Category: Tungsten Information; Published on Tuesday, 26 August 2014 15:44; Written by jwy; Hits: 500

New materials, also called advanced materials, refer to a kind of new materials which have excellent features and functions, and can satisfy the need of high technology. Military new material is used in the field of military, and is the key to make weapons and equipment better. While the military new materials technology is used in the military field of new materials technology, is the key to the modern weapon equipment. Tungsten has the highest melting point in the metal, and its outstanding advantage is high melting point with good high temperature strength and corrosion resistance, the military industry especially show the characteristics of the excellent weapons manufacturing. In the ordnance industry it is used mainly for a variety of penetrator warhead, main battle tank penetrator with large length to diameter ratio, small and medium caliber anti-aircraft penetrator and hypervelocity kinetic energy penetrator with elastic core material.

Tungsten alloy powder through pretreatment technology and large deformation strengthening technology, refining grain materials, elongated grain orientation, improving the strong toughness of the material and the penetration power. Developed by our country main battle tank type 125 Ⅱ penetrator tungsten core materials for W - Ni - Fe, the variable density compact sintering process, the average performance of tensile strength of 1.2 billion mpa, the elongation of 15% above, vowing index is 2000 m distance breakdown 2000 mm thick homogeneous steel armor.

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Introduction of Tungsten Plate

Details: Category: Tungsten Information; Published on Tuesday, 26 August 2014 14:58; Written by jwy; Hits: 506

Simple Introduction:

We select high quality tungsten powder and produce good processing property blanks with special rolling technology,and then produce tungsten plate .

So tungsten plate has good processing performance and low content of impurities. The crystal structure of tungsten plate is compact.

Tungsten plate has excellent properties, so tungsten plate is widely applied.

As we all know, tungsten belongs to refractory metal. Tungsten plate is machined on the basis of tungsten. Tungsten plate is featured by high intensity and hardness, good abrasion resistance and excellent comprehensive mechanical properties. Due to these characteristics, tungsten plate alloy is widely applied in cutting tools and mining tools.

In addition, tungsten plate has high melting point and tungsten plate is not easily corroded by air, so tungsten plate is mainly used to make tungsten filament and the high-speed cutting alloy steel, superhard mold. Tungsten plate is also used in optical instrument, chemical apparatuses.

What is more, tungsten plate also can be widely used in metallurgical, chemical, electronic, light source, machinery and other industries.

Applications of tungsten plate:

Tungsten plate is suitable to process ion implantation parts and is used to produce lighting source parts and electro-vacuum equipments. Tungsten plate also is used to make tungsten heat elements and tungsten heat shields for furnace.

tungsten plate specification:

designatioqn	process	delivery condition	size(mm)
			thickness
W1	P/M	cold rolled（Y)	0.10-0.20
			>0.20-0.40
		hot rolled®	>0.40-4.0
			>4.0-6.0

Tungsten plate Impurities:

Grade		W-1
Impurities	Fe	0.002
(%max)	Si	0.001
	Ca	0.0005
	Mg	0.0005
	Ni	0.001
	Mo	0.002
	P	0.001
	C	0.002
	O	0.002
Application		For tungsten alloys

Tungsten weight in tungsten plate is more than 99.95%.

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Introduction of Tungsten Sheet

Details: Category: Tungsten Information; Published on Tuesday, 26 August 2014 15:05; Written by jwy; Hits: 513

Brief introduction:

Tungsten belongs to rare metals and tungsten cost is different according to various tungsten content.

Tungsten sheet is one of tungsten products. Tungsten sheets are produced by good processing property billets and special cold and hot rolling technology. The crystal structure of tungsten sheet is compact.

The difference between tungsten sheet and tungsten plate is that tungsten sheet is thinner than tungsten plate.

Tungsten sheet can be divided into hot rolling tungsten sheet, warm rolling tungsten sheet and cold rolling tungsten sheet.

Due to the resistance to deformation of tungsten is big, the ordinary mill roll can not totally meet the requirements of tungsten sheet rolling. Some tungsten sheet should be rolled by mill roll made of special material. Before rolling tungsten sheet, manufacturers need preheat the mill roll. The preheating temperature is 100 ℃ to 350 ℃ according to the different rolling conditions. If the relative density of the semifinished tungsten sheet (the actual density and theoretical density ratio) is greater than 90%, then manufacturers can machine the tungsten sheet. If the density of the semifinished tungsten sheet is 92 to 94%, the processability of tungsten sheet is excellent. The blooming temperature of hot rolling is 1350℃ to 1500 ℃. If the deformation technological parameters are improperly selected, then the semifinished tungsten sheet will appear lamination. The blooming temperature of warm rolling is 1200 ℃. Hot rolling tungsten sheet with 8 mm thickness can be rolled into 0.5 mm by warm rolling.

Applications of tungsten sheet:

Tungsten sheet can be used to make tungsten electrodes, tungsten heat elements, tungsten heat shields and tungsten boats for electronics, lightening, electro-vacuum industries.

tungsten sheet specification:

designation	process	delivery condition	size(mm)
			thickness
W1	P/M	cold rolled（Y)	0.10-0.20
			>0.20-0.40
		hot rolled®	>0.40-4.0
			>4.0-6.0

Tungsten sheet Impurities:

Grade		W-1
Impurities	Fe	0.002
(%max)	Si	0.001
	Ca	0.0005
	Mg	0.0005
	Ni	0.001
	Mo	0.002
	P	0.001
	C	0.002
	O	0.002
Application		For tungsten alloys

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How to Produce Tungstic Acid by Using Tungstate

Details: Category: Tungsten Information; Published on Tuesday, 26 August 2014 14:50; Written by jwy; Hits: 529

Tungstate is anion containing tungsten acid group (WO4 2-) or poly tungsten acid group (W7O24 6-) salt. Some of tungstate exist in the form of hydrate with a strong alkaline solution, but some are difficult soluble, crystal in tungstate contains discrete tetrahedron structure of ions, slow hydrolysis polymerization in aqueous solution, in acidic solution could be quickly aggregated into more acid salt. Tungstate used as functional materials used as ceramic material, catalyst, pigment, preservative and fire prevention agent, also are a good raw material for producing tungsten acid.

How to produce tungstic acid by using tungstate, first of all, tungstate as raw materials, and heating according to the proper amount of tungsten acid salt in the beaker, when heated to boiling, continue to heat the water in the beaker to join the hydrochloric acid, available to the tungsten acid. Tungstate has fixed the dehydration temperature, finished product is actually made by insoluble in water, except hydrofluoric acid, insoluble in other organic acids. Can be used for the mordant, analytical reagent, catalyst, water treatment agents, making fire prevention, waterproof material, and phosphotungstic acid salt, boron tungstate, etc.

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