Purpose of the development: Ukrainian Institute developed a new method for welding rails, called automatic arc welding of rails bathrooms consumable way mouthpiece for short automatic arc welding by a fusing mouthpiece - ADSPM that allows you to weld with a gap at the junction of 12-16 mm, and in some cases up to 24 mm.

Recommended application field: Automatic arc welding of rails-consistent manner mouthpiece consumable used in the construction, reconstruction and repair of the way to the light rail system (LRT) - metro, tram, light rail, urban railway, including ways bezstykovyh speed lines with a temperature-to-voltage rail tracks, industrial railways transport (access and lorries), crane runways, as well as for welding rail joints within the turnouts. The developed method is primarily designed to perform surgical repair.

Technical characteristic: Designed specifically for welding and welding technology provides a sufficiently high mechanical properties of welded joints. Mechanical properties of welded joints of rails R65 hardness of weld metal - 260-320 HB; tensile strength of the weld - 800-900 MPa. The test results on the static bending: Breaking load - 1500-1650 kN; deflection - 16-22 mm.

Advantages over analogues: - High and stable quality of welded joints compared with manual arc welding bath and alyumotermitnoy; - High performance - up to 15 joints per shift; - No flux or shielding gas; - It does not require pre-heating and heat treatment of the joint; - Low power consumption - power consumption up to 12 kVA; - The equipment is easily reconfigured for welding of rails in different sizes; - High mobility, which is especially important when performing repairs.

The development stage readiness: Introduced in production

Description of the development:
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A distinctive feature of the developed method is to use a self-shielded flux cored wire fed through a longitudinal channel in a special plane consumable mouthpiece that allows you to weld with a gap at the junction of 12-16 mm, and in some cases up to 24 mm. The proposed method of welding, as a further development of electric welding bath, thanks to mechanization of the process allows 2-3 times to increase productivity and at the same time significantly improve the quality parameters of welded joints, while maintaining high mobility and flexibility of the equipment. In most cases, preheating before welding is not performed - only at temperatures below 0 ° C is required to reheat the joint 250-300 ° C, and the welding can be performed at ambient temperature to -5 ° C. Welding equipment is different because of the portability and replaceable forming snap easily reconfigured for welding rails of various sizes. Average computer time welding seam R65 type railing is 15-20 minutes, to the consolidated team of 4 people (two operators, welders and two workers railwaymen) to achieve performance of up to 15 joints per shift.

Information about newness of the development:
there are Ukrainian patents -- 1 items

corresponds technical description
Guarantees stable results getting

Possibility of transfer abroad:
Licence's sale
Licence's sale
Technological document's sale
Combinated reduction to industrial level
Realization of finished commodity

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua