Wear plates reinforced with secondary hard alloy

Girshov, Leonid B.; Belov, Valery I.; Shaboldo, O. P.; Krupnova, Irina V.

doi:10.25960/mo.2020.4.33

Cited by 1 publication

(1 citation statement)

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“…As an exception, surface defects can be smoothed out or removed using additional surface treatment (sandblasting or shot blasting, tumbling), which will increase the quality and reliability of the finished springs (figure 4). The use of bronze alloys [1][2][3][4][5][6][7][8][9][10] in spring production is not large and amounts to no more than 500 kg per year, steel wire (rods) is many times more, but, as a rule, steel wire can be replaced with imported one, but with bronze alloys there is no such possibility. At the incoming inspection, out of 10 deliveries of bronze wire, about 5-7 deliveries are rejected, most often these are small sections from 0.5 to 3 mm and often due to cracks opening after the coiling test, on wire with a cross-section of 5 mm or more after the coiling test surface cracking and scuffing appears.…”

Section: Materials and Research Methodsmentioning

confidence: 99%

Research of the application of nickel-chrome-silicon bronze BrNHK for the manufacture of helical compression springs

Silaev,

Lenina,

Mirzaev

et al. 2024

J. Phys.: Conf. Ser.

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The results of a study of the mechanical characteristics of the BrNHK bronze alloy using the acoustic emission method are presented. The mechanical characteristics of BrNHK-2.5-0.6-0.7 wire were studied after various heat treatment modes. The widespread use of bronze alloy BrKMts3-1 is due to its low price, while the mechanical and operational properties satisfy both consumers and spring manufacturers, since the technology for manufacturing springs from this alloy is not fundamentally different from the technology for manufacturing springs from cold-worked wire. In turn, the BrB2 alloy is considered a scarce alloy and is used only for springs intended for special equipment, since the properties of this alloy after hardening heat treatment are not inferior to cold-worked carbon steels. Given the increased cost of beryllium, work is underway both to reduce the beryllium content and to switch to beryllium-free alloys.

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