The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 2015
Filed:
Feb. 17, 2011
Evgeny Aleksandrovich Levashov, Moscow, RU;
Vladimir Alekseevich Andreev, Moscow, RU;
Viktoriya Vladimirovna Kurbatkina, Moscow, RU;
Alexandr Anatol'evich Zaitsev, Moscow, RU;
Dar'ya Andreevna Sidorenko, Moskovskaya obl., RU;
Sergei Ivanovich Rupasov, Moscow, RU;
Evgeny Aleksandrovich Levashov, Moscow, RU;
Vladimir Alekseevich Andreev, Moscow, RU;
Viktoriya Vladimirovna Kurbatkina, Moscow, RU;
Alexandr Anatol'evich Zaitsev, Moscow, RU;
Dar'ya Andreevna Sidorenko, Moskovskaya obl., RU;
Sergei Ivanovich Rupasov, Moscow, RU;
Abstract
This invention relates to powder metallurgy, more specifically, to composite material production methods, and can be used for the production of copper base binders for diamond tools used in the construction industry and stone working. The copper binder comprises the following components (wt. %): Copper (30-60), iron (20-35), cobalt (10-15), tin (0-10.5), tungsten carbide (0-20) and an alloying addition. According to the first variant the alloying addition is a nanopowder having a specific surface area 6-25 m/g, which is present in an amount of 1-15% wt. According to the second variant the alloying addition is a nanopowder having a specific surface area of 75-150 m/g, which is present in an amount of 0.01-5% wt. The binder possesses a high wear resistance without the essential increase in the required sintering temperature, as well as high hardness, strength and impact toughness.