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Information × Registration Number 0307U003334, 0105U004706 , R & D reports Title Development and mastering of the technology of thermohardening of balls of diameter 100 and 120 mm using by hardening drum for increasing of their hardness up to level of the 3-d group of DSTU 3499. popup.stage_title Розробка і освоєння технології термозміцнення куль діаметром 100 і 120 мм з використанням гартувального барабану для підвищення твердості до рівня 3-ї групи ДСТУ-3499. Head Tkachenko Fedor, Registration Date 28-02-2007 Organization Pryazovskyi State Technical University popup.description2 The regime's modes of thermalhardening for grinding balls of diameter 100 and 120 mm under the 3-d group DSTU 3499's conditions using new hardening equipment in "Azovstali" Metal Works are designed and masterred. The rational parameters of cooling, quenching and self-tempering of grinding balls, providing an achievement of necessary hardness combining good resistance to cracking are developed. The recommendations of chemical compound by steels and technologies of rolling are made. The some parties of balls of 120 mms of 3-d group are manufactured and successfully tested. The technology of thermohardening is implemented, industrial parties of balls in volume of 12 thous. t are released. Product Description popup.authors popup.nrat_date 2020-04-02 Close