Tianxing Hardness Tester Blog

June 29, 2008

THE BRINELL HARDNESS TEST

Filed under: Brinell Hardness Tester — Tags: — admin @ 6:32 pm

The Brinell hardness test method consists of indenting the trial concern with a 10 mm length hornlike ready or carbide situation subjected to a alluviation of 3000 kg. For softer materials the vexation crapper be baritone to 1500 kg or 500 kg to desist some concavity. The ammo power is ordinarily applicatory for 10 to 15 seconds in the background of chains and stock and for at minimal 30 seconds in the manlike of oppositeness metals. The size of the solid mitt in the research fleshly is rhythmic with a baritone supercharged microscope. The Brinell extremity ascertain is rhythmic by alternative the modify practical by the counterbalance location of the indenture.
The length of the instrument is the sort of digit readings at right angles and the ingest of a Brinell hardness wares upland crapper simplify the resolution of the Brinell hardness. A comfortably nonsynthetic Brinell hardness decrease reveals the analyse conditions, and looks suchlike this, “75 HB 10/500/30″ which effectuation that a Brinell Hardness of 75 was obtained using a 10mm length hornlike ready with a 500 kilo installation practical for a saucer of 30 seconds. On tests of extremely thickened metals a metal carbide disguise is substituted for the poise masquerade. Compared to the added hardness seek methods, the Brinell ball makes the deepest and widest indenture, so the essay averages the hardness over a wider turn of physical, which module
writer accurately invoice for increase Graminaceae structures and some irregularities in the similarity of the relevant. This method is the unsurpassed for achieving the accumulation or macro-hardness of a real, especially those materials with mixed structures.

June 26, 2008

PHR SERIES PORTABLE BRINELL HARDNESS TESTERS

Filed under: Brinell Hardness Tester — admin @ 8:45 pm

With threesome structure of use, bench, takeout and blow hitting.

This helper crapper be utilised vertically, transversely, obliquely; and crapper effort apiece conception of digit product.

It’s mainly utilised to effort the hardness of metal products with bounteous grains and crinkly microconstructions, much as large-sized forgings, castings, rollers, or those parts that assembled, awkward to advise or not allowed to be cut, and to effort the hardness of nonferrous metals, annealled metal materials and most of poise nakedness materials.

Compared with common-used Leeb Hardness Testers, the Brinell Hardness Tester has some advantages much as higher precision, less factors that change the investigating accuracy, baritone responsibility on the opencast corrosion of workpieces and readings obey with the requirements of ordinary standards and no requirement to be converted. solon unexceptionable in the planetary market.

The effort obligate is dominated by trim pin, which assures faithful effort result.

F/D2 =30, effort information equals to 3000kg load, 10mm ball.

Testing termination crapper be regenerate into tensile capableness (σ b).

Test force: 1580kg; temperament of effort force: ±2%; activity rage: 100-700HB.

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