SU1215918A1 - Method of producing welded finned panels - Google Patents

Description

And the jubretemis relates to welding, and specifically to the technology and ready-made minerals and ofil {th and | 1e; 1st rzhchnoy configuration - scientific research institute (direct and corrugated) with 1C (left through holes between the wall and the shelf of the tpra, and can be used in a variety of industrial applications,

lUvihto of the invention is pointovented with no iso-isodicolor when rippling panels are rigged, and between them and between the rib and the shelf they form through-gap gaps. .

FIG. 1 shows the edge of the plate with welded spacer; in fig. 2 is a section A-A in FIG. one; in fig. 3 - welded T-joint with propalonium; in fig. 4 is a section BB in FIG. 3; in fig. 5 and 6 are the connecting elements of, respectively, linear and corrugated T-panels with openings at the base of the rib.

The method is carried out as follows.

Before assembling a T-joint (rectilinear or corrugated) on edge 1, at its base 2, made in accordance with the configuration of shelf 3 (rectilinear or corrugated), markings 4 are placed where the holes 5 are to be fixed. spacer 6. Then the ribs 1 are welded to the base 2 by two arcs of non-consumable electrodes located on opposite sides of the rib, a continuous spacer 6. When the arcs reach 4 marks the beginning and end of the location of the holes 5, the power of the arcs is increased to melt half The thickness of the spacer 6 and the formation of recesses 7 in it, and between marks 4 at the beginning and end of the location, the holes 5, the power of the arcs is reduced to a value at which the space 6 does not weld to the end of the rib 1 (Fig. 1), providing a discontinuous seam with continuous burning arcs. Then, rib I, to which spacer 6 with shelf 3 is welded, is assembled, spacer 6 to shelf 3 is welded and welded by two arcs located on opposite sides of rib 1. In the same way, when arcs pass 4 marks of the beginning and end of the locations of the holes 5, the arc power until half of the spacer 6 melts and 6 recesses 7 form the spacer 6 from the shelf 3 side. When arcs pass between marks 4 of the beginning and end of the holes 5, the power of the arcs is set so that the spacer doesn’t weld

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five

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To the shelf J, thus providing a burr tone, whereby the areas of the spacer 6 between its sections 7, not welded to shelf B and rib I, are removed, forming a recess 5 at the bases of the rib 1 (Fig. 5 and 6), Example. A Tav's panel is made of a plasterboard (2.5 mm thick shelf, 2.0 mm edge and 4.0 x 6.0 mm cutting edge size. Before assembling the shelf with a rib, the markings are placed on the tore edges of the rib, where the holes for the working product should be located. Then The spacer is welded to the end of the edge by automatic double-arc welding with non-consumable electrodes in mode 1 | cc 70A, V "10 m / h. When the arcs reach the markings, the holes are placed on both arcs and increase it to 120 A. the current pulse spacer is melted to half of the thickness, forming a recess in it, and then the current is reduced to a value of 25-30 A and the arcs lead to the next marking, i.e., to the marking of the end of the hole location. The spacer between the markings is not welded to the edge, from this condition the current values are When the arcs achieve the marking of the end of the hole location, the current on the arcs again increases to 120 A and again the spacer melts to half its thickness. Thus, the interstitial grooves weld the spacer to the edge when the arc is continuously burning. Then the edge with the welded spacer in the device is assembled with a shelf and two-arc welding in the same modes and the spacer is welded to the shelf in the same way. As a result of this, the spacer has through melts and areas that are not welded to the rib and shelf at the marking sites. These areas of the spacer are removed, forming holes at the base of the rib. The application of the proposed method in industry provides increased productivity, reduced labor intensity and cost of fabrication of welded ribbed panels with holes at the base of the ribs by eliminating mechanical cutting of holes in the body of the ribs at its base by eliminating the assembly of the ribs having holes at the base. with short sections of spacers so as not to block the holes in the rib, and by excluding short shvov. The proposed method of welding strips intermittent pits when continuous arc burning not only improves performance, but also provides a higher quality of welded joints and the resource of their work.

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Claims (1)

METHOD FOR PRODUCING WELDED RIBBAR PANELS, in which a rib with a shelf is assembled and welded through a spacer at the same time by two arcs located on both sides of the rib, characterized in that, in order to increase productivity in the manufacture of panels having slotted through holes between the full and the rib, the formation of these holes during the welding process, the spacer is pre-welded with an intermittent symmetrical seam to the edge, after which the spacer is welded to the shelf with intermittent seams, symmetrical to the seams, which Rivara to spacer edge, wherein at the beginning and end of each portion being welded and increase the capacity of arcs carried keyhole spacers and non-welded with the edge flange portions and the spacers are removed. QO