Preview
No 3 (2004)

Byelorussian Steel Works -20

34-36 319
Abstract

The method of the daily operative monitoring of the costs for reduction of net cost and reinforcement of control on the costs has been applied for the first time in 2003 in RB at RUP “BMZ”, that allowed for the enterprise to control the costs in regime of real time.

37-38 333
Abstract

The additional profit as a whole for the year due to costs reduction per package by 9% have been received as a result of optimization of the recycling package quantity at shipment of the different types of steel wire cord on export.

39-41 333
Abstract

At present time the works has available 22 certificates of conformity on the production.

Audits on the certificates of conformity according to the new standards version are regularly carried out. The government of the works has determined the strategy on the increase of competitiveness of the production, based on its high quality and effective operation of the quality management system, fixed in the basic document — Politics of RUP ''BMZ’' in the field of quality''.

42-44 501
Abstract

The offered modernization of the mill presumes the increase of capacity of the small-sort wire mill of hot milling 150 approximately till 40% at reduction of cost of the produced on it rolled wire by 15%, that will allow in future as well to grow the volumes of hardware production.

45-47 337
Abstract

Using of new alloys allowed to stabilize the diameter of drawn wire in control limits, to reduce the volume of yellow metal in average by 30%, to increase the quality of its surface till one force, and also to reduce the processibility by 20 %.

48-52 309
Abstract

The perspective of the original technology of cooper plating as one stage cooper plating using inert anodes of stainless steel is noted. Under certain conditions using of the electrolysis impulse regime becomes possible.

Steelmaking

53-59 1499
Abstract

In conditions of RUP “BMZ” for the first time in practice of electric steelification in USSR in production quantities the new conception of melting of high level in blast steel-melting furnace has been embedded. The different variants of the out-of furnace processing and deoxidation of cord steel are tested.

60-67 1939
Abstract

The mathematical mechanism for modeling of the mixing processes of melts and powder materials, assumed as a basis of the out-of-furnace steel processing, is presented. The computer calculations of the melt speed fields, formed in the industrial bowl of the Belorussian metallurgical works, are given and analyzed.

68-69 372
Abstract

The world metal market showed that available way of the out-of-furnace processing are not enough for providing of the metal production competitiveness. At present time powder wires with fillers of silicocalcium. carbon, sulfur, ferrotitanium, ferroboron are widely applied at the works and out-of-furnace processing of steel by powder wires has become integral components of technology.

70-74 556
Abstract

The new approach to the description of the nonmetallics elimination process in the process of the out-of -furnace processing using hydrodynamic and physical-chemical models is offered. The possibility of control of the nonmetallics elimination process in the course of processing at the installation *furnace-bowl” is shown.

75-78 1838
Abstract

The following technological methods have been applied for control the composition and quantity of non-metallics in rolled wire of test meltings: work on “pure” burden, application of materials with minimal content of impurities, non-slaggy regime, fettling of steel- bowls.

79-82 2232
Abstract

The carried out work on investigation of the possibility of using of silicon carbide for the steel deoxidation and alloying showed that using of silicon carbide is economically expedient on medium-carbon, high-carbon and cord types of steel.

83-92 313
Abstract

The main functions of the abovementioned system at planning of melting and the process control are shown

93-95 431
Abstract

The offered technology allowed to carry out the transformation aluminate impurities, to prevent the fall of hard sulfide calcium and as a result to exclude tightening of the steel-bowl gate at continuous steel cast with the normed content of sulfur and aluminium.

96-100 384
Abstract

There are achieved all production-technological figures, concerned with embedding of the out-of-furnace processing “bowl- furnace'' installation, i.e the casting duration in the steel-making furnace is reduced, the consumption of electrodes per one ton of good steel is reduced, and also the consumption of refractory bricks is reduced and metal overflows into furnace are excluded.

101-106 2047
Abstract

The investigated new reduced technological schema showed the possibility of the production of high carbon steel of cord quality with metal cast at UNRS of light section in conditions of ESPTs-1.

107-109 581
Abstract

The program ''Calculation of the optimal metalburden composition" allowing to minimize the total cost of charging and of addition elements at the required output of molten metal of the predetermined chemical composition, has been developed on the basis of the offered technology.

110-113 335
Abstract

At present time the high emphasis is placed on the problems of the quality improvement and increase of the metal cast speed at the machines of the slugs continuous casting. One of the ways of solving of this task is using of hydroelectric drive of the mechanism of the crystallizer swinging, which allows to vary frequency and amplitude of swinging and also to change the principle of crystallizer. In the work there is presented the improved mathematical model of the crystallizer swinging mechanism in the form of the automatic control system, using of which one can investigate the influence of different parameters of the system on quality and productivity of the machines of the slugs continuous casting.

Rolling production

115-116 350
Abstract

The stages of inflow into production of different wire mills of the works and their further modernization are described. There is shown, that a number of actions, providing the further development of the rolled production, are planned by the program of reconstruction and rearmament for the period till 2008.

117-124 1449
Abstract

The technology of conversion of new kinds of hardware with profile of new type, which will allow to increase considerably the mechanical properties of concrete components and to enhance the steel economy, is considered in the article. The technology of conversion of bale hardware rolled metal, that will allow to increase considerably the solidity and to improve operating abilities of the hardware rolled metal, is also considered.

In such a way the given results of work together with NIIZhB and BMZ allowed to receive the new technological decisions, the realization of which along with the steel save will increase the reliability of concrete components of buildings and installations.

125-130 329
Abstract

The development of the heating technology of bar bearing steel ShH 15SG in conditions of RUP “BMZ" is considered in the article. The embedding of this technology of heating of steel ShH 15SG allowed to roll the mill bar 80—130 mm in conditions of RUP “BMZ” guaranteeing the requirements of GOST 801-78.

131-135 363
Abstract

The results of the computer calculations of the temperature and stress fields, of the crystallizing steel ingot of size 300x400 mm from steel 20ХНЗЛ at circular-flame and flat flame jet-type cooling, are presented. The comparative analysis of the stresses changes along the whole length of ingot for two types of jet-type cooling at the example of the machine of the continuous slugs casting BMZ.

136-137 1835
Abstract

The technology of the high-strength spiral hardware is considered in the article. The offered technology allows to bring the mechanical characteristics of high-strength reinforcing steel to conformity with the requirements of practically all the well-known in world practice standards on such kind of production.

138-140 350
Abstract

The experience of exploitation of continuous heating furnaces, established in section rolling workshops of RUP BMZ, the peculiarities of the construction and decisions, which allowed to reach stable and economical operation of units, is considered in the article

141-142 344
Abstract

The essence of the applied technology of rolling by slitting-process in four legs of reinforcing steel No 10 of j strength class AtSOOC, A500C and AtSOO with longitudinal separation of cogged ingot in mill flow “320” RUP “BMZ” is expounded. The analysis of the received mechanical characteristics is carried out, the advantages of such technology as compared to rolling by slitting-process in two and three legs, and also its deficiencies and ways of their elimination are considered.

143-144 328
Abstract

The advanced technology of the controllable accelerated cooling of the rolled wire in the mills stream at rolling is considered in the article.

The embedding of the advanced technology allowed: to increase the plastic and to stabilize strength characteristics of the corded rolled wire, to save about 20 tons of good metal per month.

 

 

145-150 315
Abstract

The mathematical model for numerical analysis of' scaling of the ingots, moving with constant speed in the furnaces with graded heating and predetermined quantity of the temperature zones, is offered. The computer calculations of the temperature and scale lay forming at the ingot moving with constant speed in furnaces with five temperature zones are carried out.

Hardware production

152-158 385
Abstract

In this article there is briefly narrated about the history of the steel wire cord production, the development of its production at Belorussian metallurgical works, perspectives of the further increase of the Belorussian steel wire cord production volume. The information on the dynamics of the production of wire RVD, wire of bead rings of tires and steel wire cord at RUP “BMZ” for the last 15 years is given. The tendencies of the development of the tires reinforcing materials for the nearest future are considered.

159-161 387
Abstract

The influence of the metal quality and technological factors of hardware production on the plasticity of high-strength wire is studied. A number of actions on the technology improvement have been realized on the basis of the received results.

162-165 299
Abstract

Analysis of the world practice and comparison with the competitors data shows, that for keeping up of RUP “BMZ'' competitiveness it is necessary to carry out works in directions of perfection of the steel wire cord production technology, development of steel wire cord, development of the breaker constructions with the high infiltration of rubber of wire with superstandard diameter and etc.

166-171 1666
Abstract

The technology of the cold-drawn wire production at 13-fold wire-drawing mills of the firm ''Koch developed.

172-175 325
Abstract

The way of the production of steel wire cord of the two-layer spiral constructions with the different lay paces in one technological operation, developed at RUP ''BMZ”, is presented. The calculations of the steel wire cord technological characteristics, parameters of the cable machine adjustment in technological operation are given. Advantages of the new way of the steel wire cord production, the ways of attainment of economic efficiency and alternative ways of its application at production of other steel wire cord constructions are pointed out”.

Equipment. Reconstruction

177-182 349
Abstract

The review of technical diagnostics and crack detection at RUP “BMZ” is given in the article and there are reflected the functions and tasks of the Laboratory of Technical Diagnostics and Crack detection (LTDandC). The examples of determination of the equipment failure by methods of vibration diagnostics, applied in LTDandC, are given and the efficiency of using of the system of technical servicing of the equipment according to “state” is shown. The idea of transfer from the repairs system “according to schedule” to repairs “according to state” using new information technologies such as vibrating monitoring and vibrating diagnostics is briefly reflected in the article.

183-187 317
Abstract

The review of technical decisions on using of utilization heat in the systems of air conditioning, sewage water clearing, keeping of constant oxygen pressure in the plant set at provision from three independent sources is reflected in the article. The cumulative experience of the sewage water clearing at the facilities of back osmosis is noted, the qualitative figures of sewage membranes of different kinds are analyzed. The carrying out of technical decisions will allow to decrease considerably the deleterious effect on the environment.

188-190 394
Abstract

The system of automatization of the technological processes at RUP “BMZ “ is analyzed in the article. The conceptions of base automatics, requirements to the systems of base automatics, structure of the automated management systems at the plant are reflected in the article, the list of actions on stage-by-stage embedding of the new automated management systems and reconstruction of old ones is given.

191-193 328
Abstract

The main factors of guaranteeing of measurings unity in the Republic of Belarus, stages of transference of the physical quantity unit size from the national standard samples to the working means of measuring are considered in the article. There is also presented the schema of traceability of measuring means and technical opportunities of the metrological service of BMZ. The technical opportunities of more unique standard samples of enterprise, operated at the plant, are considered.

194-199 322
Abstract

The source of water supply of the plant is river water. The schema of the plant water supply is circulating, including the circulating cyclic processes of “pure ” water and circulating cyclic processes of muddy water. The water supply system is sprinkler.

The river water is processed under the schema:

Partial softening — at the facility of decarbonization;

Softening - in sodium cation unit.

The saline water after regeneration setting of chemical unit are processed at osmotic setting.

The perspective of the water economy includes the modernization of the block of preliminary purification of the saline outflows and osmotic setting.

Anniversary

 
200 1437
Abstract
(to the 50-th anniversary)


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ISSN 1683-6065 (Print)
ISSN 2414-0406 (Online)