Tungsten Military Parts Price

General Knowledge of Tungsten Carbide

Details: Category: Tungsten Information; Published on Monday, 14 October 2013 14:12; Written by Yuri; Hits: 1367

When evaluating or finding equivalents of tungsten carbide grades the important criteria is to specify two of three factors. Binder content, hardness or grain size. In straight matrix materials any two of these will match the third. A 15% binder with hardness of 88.0 RA would have to be fine grain material whereas with a hardness of 86.0 RA would need a very coarse grade to achieve it. Specifying cobalt binder only can be a dangerous game. Take control of each situation and ensure you know what you are using and why so that consistency of specification can be obtained from whatever source. We can achieve hardness differential on 15% cobalt: purely by varying the grain size, that would need a spread of 11% cobalt over same gain size materials.

All specifications of tungsten carbide are designed and engineered for a purpose and rigid controls are kept throughout production processes to ensure adherence to grade engineering. Quality control properties such as hardness, density, and minimum transverse rupture strength were determined from tests made on each batch of powder before it is used in the manufacturing process. Other properties such as Young's modulus of Elasticity , Poisson's ratio , Coefficient of Thermal Expansion, Thermal Conductivity and Electrical Conductivity are used by engineers for design calculations. Properties such as compressive strength, grain size and abrasion resistance give the designer additional information about the suitability of the grade for the part being designed.

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Warning of Fake Gold

Details: Category: Tungsten Information; Published on Monday, 14 October 2013 11:53; Written by Cher; Hits: 1789

Whenever you are considering an investment in gold, you must require proof that the item that you are purchasing is actually gold. A simple certification is nearly worthless in the legal system since there is no way to prove that you yourself did not switch the gold for fake gold after the gold came into your possession. Work with a trusted jeweler or other expert to make sure before you buy, you are getting the real thing, because you have next to no recourse once the deal is done.

fake gold bar

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Problems in the Use of Bucking Bars

Details: Category: Tungsten Information; Published on Monday, 14 October 2013 11:29; Written by Cher; Hits: 1339

Because of the high-impact loads which these tools are subjected to, over and over again, their serviceable life is quite limited. Work hardening occurs at the neck of the tool, fractures develop and the toolhead soon breaks off. Although they are relatively inexpensive, because they are so simple in design and construction, their failure can mean an improperly set fastener, downtime, etc.

Other serious problems in the use of bucking bars is the strain and fatigue which the persons using such tools experience and the noise level incident to their use. The tool must be held tight against the work, from behind, and with one hand, while the impacting fastener is applied with a work tool held in the other hand. The shock load is transmitted through to the bucking bar and is taken fully by the operator and a high-decibel shock wave is produc

bucking bar

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Identification of Fake Gold

Details: Category: Tungsten Information; Published on Monday, 14 October 2013 11:41; Written by Cher; Hits: 1767

You can test gold in several ways to determine if it is the real thing. Real gold can be hammered and will not break or lose its shine. It will just flatten out. Fake gold will stolidly retain its original shape or shatter. You can also weigh fake gold to see if it weighs as much as the same amount of real gold would--a jeweler can help you with this. Dropping the item in question into nitric acid will also let you know whether your gold is fake, as the real gold will remain unaffected, but fake gold will change color and create a green foam.

fake gold bar

Gold plated Tungsten Product Manufacturer & Supplier: Chinatungsten Online - http://paper-weight.cn/
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What is Bucking Bar?

Details: Category: Tungsten Information; Published on Monday, 14 October 2013 11:21; Written by Cher; Hits: 1847

Rivets and like fasteners require a backing member behind the work receiving the fastener to spread the blind end of the fastener and to stabilize the two parts while they are being fastened together. Tools of this type are commonly known as bucking bars and are usually no more than a bar of iron or steel with one end formed at a right angle.

Although there have been some suggestions for improvements in this type of tool, and notably in impact absorbing cushioning means, none have proven very successful.

bucking bar

Tungsten Bucking Bar Manufacturer & Supplier: Chinatungsten Online - http://www.buckingbar.cn
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