- BrandМашиностроительный завод Звезда
- Country of manufactureRussia
The drill bit is intended for drilling of wells by machines of rotary drilling with shnekovy delivery of a boring trifle in breeds with fortress coefficient to f=8 on M. M. Protodyakonov's scale. The crown is supplied with the replaceable cutters reinforced by plates from a volframokobaltovy alloy of the BK8 or BK8B brand.
Complete set options
I II III
Diameter of a crown, mm 160
Axial effort to a crown, kN, (t) no more than 80 (8)
Resource at a fortress of breeds of f=4-5, m 5000 3500 2500
Mass of a crown, kg 5.0
The mass of a firm alloy of BK8, in a set, kg 6.94 4.03 3.64
Mass of a set, kg 28 18.43 16.25
Crown assembled 1
The cutter advancing 57 36 30
Cutter lateral 42 27 30
The cutter calibrating 87 48 30
Joint pin 9
State standard specification 397-79 forelock 1.6x16
In a national economy often it is required production of an opening in rock of a deep water and small diameter. For the solution of this technical task drill bits are used. Process at which there is a destruction of strong breeds with the subsequent formation of wells of various diameter and depth is called drilling.
To estimate complexity of this process, it is enough to make a brief experience during which to try in house conditions to shatter any rather firm sample of rock. Simple experiment is clearly demonstrated by a number of requirements imposed to drill bits namely high hardness and durability of a working surface.
Modern boring koronkiyavlyayutsyaosnovnym details of the machines used for production of wells. They have to be reliable, available at the price, convenient in service and suitable for conducting various drilling operations.
The drill bits released by the Star plant meet all these requirements. Here make razlichnyevida of high-quality drilling equipment for conducting drilling operations. The Zvezda plant is a reliable partner and the supplier for many industrial enterprises. In recent years its work was not any serious claim not only to quality of the delivered products, but also to terms of deliveries, and implementation of contractual obligations.
The boring koronkiprednaznachena which are let out here for production of various wells in soil which coefficient of fortress can be equal 8 on Protodyakonov's scale. Inzhenerno technicians of the enterprise constantly works on improvement of design features of the equipment, doing it more and more qualitative and reliable.
In particular, drill bits have the main and cutting cutters of a prismatic form participating not only in destruction of breeds at a well punched hole, but also in calibration of its walls. Cutters on working surfaces of edges can be located under various corners to the drilling plane that allows to regulate rate of conducting works depending on the hardness of rock.