COLD SWAGED SPLICES OF BAR We have honour to present the newest and the most efficient technology of bar mechanical interlock by swaging by special hydraulic press. Cold-swaged splices are applied for steel bar of 16 - 40 mm diameter and yield stress 400, 500 and 600 N/mm2 Cold-swaged coupling with sleeves provides new possibilities: absolutely full-strength interlock; the most economical interlock type; high efficiency of reinforcement works; accessibility of all necessary consumables;
operation possibility in all weather conditions; cyclic loads stability; easy control of interlock quality.
Absolutely full-strength interlock When using «Enerprom» equipment for manufacturing of cold-swaged splices, their tensile strength exceeds actual force of ultimate strength of coupled rebar (coupling strength equal to rebar strength). Also these rebar interlock persistence is guaranteed, even if rebar interlocks are done for concrete blocks which will be explored under influence of repeated loads, incl. in seismic regions. Numerous tests of the Main Russian Scientific and Research Construction Center and of our customers have proved that destruction of cold-swaged splices always happens in bar, not in sleeve. Savings sources for cold-swaged splices: rebar consumption decrease; low-skilled labour application (one «Enerprom» set HardyBar 80 (100), operated by two one-day trained workers, is able to substitute 10 welding operators of the highest qualification);
consumables’ cost decrease; productivity increase; electric energy consumption decrease; simplification of interlock quality control process.
More over, thread couplers application may have difficulty because every manufacturer of coupling provides its own standard of couplings.
WWW.ENERPROM.RU tel.: +82-10-9271-5767
Cost calculation of different types of bar interlock by example of Ø 32 mm bar (for Russia):
1 interlock cost, USD. Time for making interlock, min. Coupling strength guarantee Interlocks quantity in 8-hour working shift, pcs.
With an overlap
Welding
Thread couplers
16.3 5 no
19.5 108 yes
8.7 7 yes/no
Cold-swaged splices 3.5 4 yes
80
5
60
100
HardyBar 80 (100)
Equipment can be applied both for reinforcement under field or shop-field installation. HardyBar 80 swaging press is designed for the pressing of steel bar of periodic profile of 1832 mm diameter; swaging press HardyBar 100 - for steel bar of 18-40 mm diameter. Swaging is processed by switching on and holding the button on the swaging press handle by pressure 70 ± 0,1 MPа, with holding (by pressure setting on relay) 3…4 sec., then hydraulic fluid pressure automatic release occurs and oil feeding in the back chamber, rod moves in the initial position. Scope of supply of HardyBar 100 swaging press: swaging press, pumping unit with filteron the inlet and outlet, spring balancer; high pressure hydraulic hose set 5 000 mm length with male half coupler manufactured by «Cejn» (Germany); control cable; set of cable connector; transportation box; seals set.
Bench Press HardyBar 300 HardyBar 300 is designed for serial production of cold-swaged slices in shop-field, for steel bar of 18 - 40 mm diameter with higher, in 3-5 times, productivity, than mobile presses. Large force and special dies ensure sleeves swaging with the small quantity of pressings. Swaging bench press is stationary with one-column body, that ensures easy operation, is equipped with button switch (start-stop), «emergency stop», contactless sensor of limitation of rod stroke, which ensures pressure release in the time of dies’ closing. Scope of supply: swaging bench press, pumping unit with automatically adjustable feeding while pressure change and foot control, hoses 4 m.
+82-10-9271-5767
WWW.ENERPROM.RU
Модель HardyBar 80 HardyBar 100 HardyBar 300
Nominal force, tf
Nominal pressure,MPa
80 100 300
70
Dimensions, mm (LxWxH)
Weight, kg (without dies)
201х185х551
41
510
216х197х577
49
2100
830х480х1106
1470
Max. bar Working diameter, mm volume, cm3 18, 20, 22, 25, 400 28, 32 18, 20, 22, 25, 28, 32, 36, 40
HardyBar LINE 300 Indoor processing line is designed for prior marking of steel bars and serial swaging of sleeves on both ends of steel bar of diameters Ø 18; 20; 22; 25; 28; 32; 36; 40 mm. on 1/2 of sleeve length.
Maximum length of swaged steel bar is 12 m, line dimensions, LхWхH, mm, 13 500х 2600х1340; weight t, 6,250. Line consists of: two swaging bench presses HardyBar 300 with two special upper and lower dies; two pumping units with foot control; there is bar supply table of 3 sections 4m length reach between swaging bench presses, there are loading rack and receiver of 3 sections behind and in front of the bar supply table. Sets of special dies (upper / lower) are to be ordered separately. Bar removal from loading rack is manual. Bar removal from supply table - by pedals of pusher drive. Bar marking and splices swaging is made by application of special dies. Marking of swaging quality control after swaging should match minimum size of sleeve lengthening δmin =8%, and is applied as discarded value in the current control of swaged connections (at.7.19 Russian Standard GOST 10922-2012). Swaging press force for steel bar marking and splices swaging is automatically controlled by pressure value adjustment in hydraulic system, which complies to the required force.
+82-10-9271-5767
WWW.ENERPROM.RU
Equipment has already established a reputation on such major projects as construction of the main Olympic arena of «Fisht» stadium (Sochi city), on grid swaging of bridge pylons through «Zolotoy Rog» bay (Vladivostok city), in construction of shipyard «Zvezda» (Bol’shoy Kamen’ city).
CERTIFICATION Report «Stability analysis of manufacturing and quality control of cold-swaged steel bar mechanical interlocks, bar of А500С and А400 (А-III) types of 18-40mm diameter». А500С and А400 means yield stress value 500 and 400 N/mm2. Certification in compliance to the GOST 4842-026-77625325-2009 «Test report of endurance of cold-swaged splices of periodic profile bars, swaged with the endurance guarantee («ZNIIS-TEST»). There is a conformance certificate on HardyBar«Enerprom» model of swaging presses for steel bar interlock in the system of Russian Standard GOST Р № С-RU.AЯ56.В.02273, technical regulation 0901560.
tel.: +82-52-269-3120 fax: +82-52-269-3140 mob. tel.: +82-10-9271-5767 e-mail: enerpromkorea@gmail.com website: www.enerprom.ru 358-5 Seobu-ri, Eonya-eup, Ulju-gun Ulsan, Korea, 689-806