FIELD: powder metallurgy; cutting tools for high-speed cutting. SUBSTANCE: proposed article is made from high-speed steel at high heat resistance and toughness by powder metallurgy method. Proposed method includes spraying of steel melt by nitrogen, hot iso- static molding of powder and hot deformation. Composition of article thus made is as follows, mass-%: carbon, 1.51-2.5; silicon, up to 0.8; m...

FIELD: shielding materials. SUBSTANCE: invention provides material possessing protective properties and simultaneously high sorption capacity regarding harmful emissions. Material comprises one or several fibrous layers containing synthetic fibers and carbon-filled paper layer all joined by means of needle punching. Fibrous layer(s) is (are) made from polyester fiber mix including hollow polyester...

FIELD: equipment for examination of geological exploratory and production wells by geophysical methods, alignment of downhole apparatuses in string of drill pipes. SUBSTANCE: centralizer has body with ribs, supporting members mounted for radial movement and spring. Supporting members come in the form of levers comprising two interconnected links. Upper link of lever is attached to rib of body anch...

FIELD: measurement technology, measurement of temperature distribution in extended objects, oil and gas production. SUBSTANCE: given fiber-optical device incorporates optical pulse radiation source that includes laser, sensitive element of pickup in the form of optical fiber and signal processing unit which incorporates timer, optical directional coupler and photoreceiving modules, synchronization...

FIELD: electrical engineering; television information displays. SUBSTANCE: extreme display elements disposed in gas panel along anodes have their discharge gaps measuring 0.84 to 0.95 of discharge gaps in remaining display elements. EFFECT: enhanced operating reliability of extreme display elements. 1 cl, 1 dwg

FIELD: electronic engineering; television information displays. SUBSTANCE: gas panel has first and second relatively perpendicular dielectric barriers which enclose display elements formed in anode intersections disposed between second dielectric barriers and which are grouped according to display elements of wire cathodes disposed between first insulating dielectric barriers; it also has dielectr...

FIELD: perforation technologies. ^ SUBSTANCE: method includes increasing weight of one or more components of perforators column, while in one or more component material is partially removed for changing gravity center. Directed shooting perforator has one or more cumulative charge having cover, charge body and charge pipe. One or more component of perforator is eccentrically increased in weight, a...

FIELD: well examination technology. ^ SUBSTANCE: method includes preliminary marking of lengths by combined magnetic marks in form of known row of n portions of different level of magnetization being magnetic equivalents of information quanta and applied to cable armor along these lengths with interval L, the signal is registered which matches length of interval L, row of n reading devices is plac...

FIELD: electronic trading. SUBSTANCE: method involves determination of deposit margin deficiency for every bidder; in case of no deficiency bidder proceeds with business application, submitted application is checked for validity, valid applications are placed in application queue, and deals are made in case cross applications are available; if margin is lacking, bidder is given authority to settle...

Composition comprising a biodegradable polymer (I) and a marine plant or shell material (II) is new.

FIELD: cleaning equipment. SUBSTANCE: automatic cleaning apparatus has drive unit for wheel driving, upper camera mounted on main case and adapted for shooting of upper image in direction perpendicular to movement direction, and drive unit controller for providing movement of automatic cleaning apparatus in cleaning zone in accordance with set movement pattern and for correcting of movement path t...

FIELD: alloyed tool steels for manufacture of parts by powder metallurgy method; tools for cold metal working. SUBSTANCE: proposed alloyed tool steel is used for manufacture of parts by powder metallurgy method. Proposed steel contains the following components, mass-%: carbon, 2.05-2.65; silicon, up to 2.0; manganese, up to 2.0; chromium, 6.10-9.80; tungsten, 0.50- 2.40; molybdenum, 2.15-4.70; van...

The invention relates to a one-step method for producing laminated safety glass panes. Said laminated safety glass panes consists of at least two glass panes and a plasticized, partially acetalized polyvinyl alcohol interlayer. According to the non-autoclave method, a plasticized, partially acetalized polyvinyl alcohol film with a roughness Rz between 70 mu m and 150 mu m is used.

The invention provides a process for the production of flexible to semi-rigid polyurethane shaped articles with a compacted edge zone of given hardness and a significantly more flexible cell core, so-called integral foams, in which non-combustible mixtures of fluoroalkanes which comprise 1,1,1,3,3-pentafluorobutane (R 365mfc) are employed as physical blowing agents.

FIELD: cellulose materials. SUBSTANCE: molded cellulose products such as fibers, filaments, foil, membranes, and pipes are manufactured by extruding solution of cellulose in water-containing N-methylmorpholine oxide using extrusion die through air slot and coagulation of extruded product in amine oxide-containing aqueous spinning bath. Coagulated product is passed over at least one washing stage t...

The present invention relates to macroporous chitosan beads having 5-200 mum in size of relatively large and uniform pores that are distributed from surface to core region, and a preparation method thereof compring the following steps; by dropping chitosan solution, aqueous chitosan solution or their mixture into the low-temperature of organic solvent or liquid nitrogen; and by regulating pore siz...

FIELD: packing facilities. SUBSTANCE: invention relates to method of chemical treatment of tape made of soft steel before its laminating with thermoplastic. Method includes stages of chemical treatment of tape to form, on at least one of its surfaces, a nonmetallic coating and application of thermoplastic polymer to this surface to form continuous layer. EFFECT: increased capacity, reduced consump...

A coupling component (13) for transmitting medical substances, comprises two channels (17, 18) for conveyance of medical substances in two opposite directions, and a connecting mechanism (21) for releasable connection to a second coupling component (14) having a further channel (19) for creating a coupling (12). The connecting mechanism is a thread. An Independent claim is also included for a met...

A safety electrical outlet for receiving metallic prongs of an electrical plug. The outlet has a housing with at least two plug passages being sized for receiving the metallic prongs of the electrical plug, and two metallic connectors mounted on the housing for connection to an electrical power source. At least two transverse channels communicate with the corresponding plug passages and extend tow...