Tungsten carbide rod iscalled tungsten rod, tungsten steel rod or simply carbide rods. Cemented carbide is a kind of composite material which is made of refractory metal compound (hard phase) and bonded metal. Hard alloy is also known as tungsten steel, is relatively different local name. So what are the attention to the selection of tungstencarbide rod?

Tensile strength, elongation,chemical composition of the standard or commitment to the indicators.

The appearance of the cemented carbide rod should be rounded, without any defects such as flying edge, skin, hemp pit, abrasion and so on. If the hard alloy rod product suppliers to provide the appearance of rules of the circle, the surface is very smooth, only that the rod is type two molding extrusion products, many cable companies are confused by the appearance of smooth round pole, that the quality of the pole must be good.

Continuous casting and rolling production oftungsten carbiderodcommon specifications for the 9.5MM diameter, it is impossible to three roll rolling, is a circle shape, the appearance will mark the pole slightly.

The quality of the hard alloy wire rod breakage rate must be less than or equal to 3 times. If the broken line rate is greater than 3 times, to analyze its disconnection.

The wire is broken in inside or outside the box, if it is broken in the box, see the first few modes, to break down the interception mouth clean, check the broken mouth, some are caused by the breaking of impurities is obviously different from the color of the conductor, some are pouring hydrogen absorbing too much gas bubble caused by the formation of hollow bolt. In short, the broken line rate is too high or simply pull a broken and can not pull, there are four reasons:

First, the hard alloy conductor material, the front has been said.

Secondly, the problem of equipment, many enterprises are used to draw pure hard rod of the hard wire drawing machine, the popular vertical die drawing machine ten overall power is generally only 75KW, can not draw hard alloy wire. Type 11 or 13 die die drawing machine also depends on the motor power, if the power is 75KW, is certainly not pull hard alloy wire. Our company has had at least 6 such incidents.

Thirdly, the problem with mold. Some enterprises into the line compression ratio is not well controlled, and some did not grasp the law, once the number of silk

Need to adjust the number and position of the mold, often mistaken.

Fourthly, mold material problem. The angle of the die material and the entrance area of the die is hard. If the die material is not appropriate, it is possible to draw out the surface of thetungsten carbide rodhas a lot of burrs, skin and scratches.

Above all,High qualitytungsten carbiderod drawing out must be bright silver, precisely, hard alloy wire should be very smooth, bright silver shiny, translucent, pure color effect is significantly more than the pure hard to. Therefore, with the appearance of carbide rods can not judge the quality of drawn out of the silk, the key depends on the actual drawing of the silk surface effect.

Tungsten carbidewire surface color is darker, faint or obvious gray spots, indicating that the hard alloy rod production process in addition to impurity control. Such a wire is likely to be a good pull.

Posted by: hannahgwendolyn at 09:30 AM | No Comments | Add Comment
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