Bucking bar is a work tool received behind work surfaces to provide a backing member in applying impact fasteners and including intermitted toolhead and handle parts with a low-recoil impact-absorbing spacer provided there between to take shock loads in compression and shear.

Bucking bars are used on the backside of a metal rivet to counter the force of the hammering on the other side. They also can be used to absorb the force of rivet guns, reducing the vibration of bucking.

Bucking bars used to form bucktails on rivets. And come in many different shapes and sizes. They are normally made from an alloy steel similar to tool steel. The particular shape to be used depends upon the location and accessibility of the rivet to be driven.

The size and weight of the bar depend on the size and alloy of the rivet to be driven. Under certain circumstances, and for specific rivet installations, specially designed bucking bars are manufactured locally.

Bucking bars are normally made from tungsten heavy alloy. All edges are deburred and working surfaces are polished for troubles-free use. This helps to prevent marring of formed bucktails. Please notice that never hold a bucking bar in a vise unless the vise jaws are equipped with protective covers to prevent marring of the bucking bar.




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Sea fishing is becoming more and more popular as more anglers are prefer to search for the ultimate thrill in fishing.

That's exactly what you'll get when you venture out deep into the depths of the ocean where some of the biggest pieces of fish you'll ever find are located.

But sea fishing is harder than fishing in river or lake. You should have self-contained fishing tools.

Tungsten alloy fishing jigs will be good tools for your thrill sea fishing. Using tungsten alloy fishing jigs is the fastest and easiest way to add significant weight to your fly. As it’s high density and small volume.

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Tungsten (W) element

Tungsten is a metal element. Tungsten is a chemical element symbol W, belonging to the sixth cycle of the periodic table (the second longest period) of Group VIB through tungsten smelting after the silver-white lustrous metal, high melting point, great hardness, low vapor pressure evaporation rate is smaller, chemically stable.

Basic information

Name: Tungsten

Protons / Electrons: 74

Symbol: W

Neutrons: 110

Atomic Number: 74

Category: Transition Metal

Atomic Weight: 183.84 amu

Crystal Structure: Cubic

M.p.: 3410.0 ° C (3683.15 ° K, 6170.0 ° F)

Density @ 293 K: 19.3 g/cm3

Boiling Point: 5660.0 ° C (5933.15 ° K, 10220.0 ° F)

Color: Silver


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There are many kinds of tungsten heavy alloy products, different manufacture techniques could have various shapes, such as tungsten heavy alloy rod, cylinder, bar, block, brick, plate, tip, strip, sheet, ultra thin sheet, sphere, pellet, ball, disc, ring, tube, etc.

They could be used in different fields depend on their special properties, such as small capacity but high density, high yield strength, good hardness, excellent elongation, etc.

When it comes to different functions, tungsten heavy alloy could be widely used for different industries and countries in various fields: such as the sports, including golf, fishing, darts, yacht, racing car; the medical, including radiation shielding, source holder, collimator, isotope container, nuclear syringe; the scientific, including tungsten heat sinks, oil drill, mine exploitation.

Due to increasing abundant demand of Depleted Uranium, tungsten alloy is also widely used as a substitution in some parts of military products nowadays. As its high density similar to real gold, tungsten alloy material is very famous as gold-plated substitution. It could be made as gold-plated tungsten bar, golden tungsten brick, gold-plated tungsten bar, golden tungsten paperweight, gold-plated tungsten coin.

 For its high melting point, tungsten alloys are usually used for many high temperature working environments, such as rocket ignitron, turbine, etc. For its environment-friendly, tungsten alloy material is widely made as tungsten heavy alloy fishing sinker, jig, weights, it is much better than lead in small capacity but high density. Depending on special properties, tungsten heavy alloy is very popular in our life now.


Tungstenufn Maacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:  sales@chinatungsten.com
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