Scarfweld type steel grating and processing method thereof

Abstract

The invention relates to the steel grid plate manufacture technical field, in particular to a scraf welding type steel grid plate and the processing method thereof. According to the technical proposal provided by the invention, the scraf welding type steel grid plate comprising a bearing flat steel and cross bars is characterized in that: a plurality of grooves are arranged on the bearing flat steel, and the cross bars embedded in the grooves are welded with the bearing flat steel. The width of each groove L1 is larger than the thickness of each cross bar L2, and the depth of each groove H1 is smaller than the height of each cross bar H2, thereby enabling the upper surface of each cross bar to be above the upper plane of the bearing flat steel after each cross bar is felled into each groove. Then a welding current and pressure is applied between the cross bars and the bearing flat steel, the cross bars and the bearing flat steel are welded firmly and flattened through a resistance welding method, and finally the scraf welding type steel grid plate is manufactured. The invention has easy production, lower requirements on raw material and simple processing equipment.

Description

technical field [0001] The invention relates to the technical field of steel grating manufacture, in particular to an embedded welded steel grating and a processing method thereof. Background technique [0002] At present, steel grating products are mainly divided into pressure-welded steel grating and pressure-locked steel grating according to different production methods. Among them, the cross bar of the press-locked steel grating is usually made of flat steel. During processing, the cross bar is pressed into the load-bearing flat steel or the pre-grooved load-bearing flat steel by pressure at each intersection point of the load-bearing flat steel and the cross bar. to fix it. Processing press-locked steel grating in this way requires sufficient pressure on the processing equipment and complex tooling to smoothly press the cross bar into the bearing flat steel; even if the groove is pre-done on the bearing flat steel, in order to The rod is fixed to the load-bearing flat...

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Problems solved by technology

Processing press-locked steel grating in this way requires sufficient pressure on the processing equipment and complex tooling to smoothly press the cross bar into the bearing flat steel; even if the groove is pre-done on the bearing flat steel, in order to The rod is fixed to the load-bearing flat steel. The size of the groove on the load-bearing flat steel and the thickness of the cross-bar must adopt an interference fit, which must also require a lot of pressure, and the thickness tolerance of the cross-bar is very high. Ordinary flat steel difficult to apply

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