Factory Tour

PROCEDURE-SUBMERGED ARC WELDING

The production supervisor shall plan the jobs to be welded.

Only the items that are fitted and accepted by QC shall be taken for welding.

Clean the location where the welding has to be done free of dust, oil, grease etc.

Set the wire feed and voltage for welding.

The fillet size shall not exceed more than the smaller thickness of the part unless otherwise specified in the drawing.

The fillet size parameters will be maintained according to the chart displayed in the welding area which is prepared based on GB50661-2011 standard

After welding, remove the spatters and slag completely.

Grind off the burrs, sharp edges and excessive reinforcements.

Offer to QC for inspection.

PROCEDURE-MIG WELDING

The production supervisor shall plan the jobs to be welded.

Only the items that are fitted and accepted by QC shall be taken for welding.

Clean the location where the welding has to be done free of dust, oil, grease etc.

Set the wire feed and voltage for welding.

The fillet size shall not exceed more than the smaller thickness of the part unless otherwise specified in the drawing.

The fillet size parameters will be maintained according to the chart displayed in the welding area which is prepared based on GB50661-2011 standard

After welding, remove the spatters and slag completely.

Grind off the burrs, sharp edges and excessive reinforcements.

Offer to QC for inspection.

HANDLING & PREPARATION OF MATERIAL PRIOR TO BLASTING

Prior to any work commencing, Tool Box Talk shall be performed by Foreman for every task involved in the automated blasting and manual blasting phase. The working area shall be barricaded with information notices posted to alert passersby of the operation within.

The ID of fabricated steel to be blasted shall be recorded by Foreman on a shift to shift basis for the purposes of traceability.

Raw material steel sections to be blasted shall be craned onto the "in-feed" rack. The "in-feed" rack shall be custom built and level with the rollers of the conveyor. All rigging shall be planned before the list of items. All personnel involved shall be suitable trained and qualified for the job they are doing.

Once the raw material is sat on the "in-feed" rack, it may be cleaned with high pressure air to remove dust in the surface of the item.

All of our Lanjing steel structure are ISO 9001-2015 certified. Any third-party inspection will be accepted, such as SGS, BV, TUV etc. We also welcome OEM and ODM orders. So far, we have exported to more than 1,500 projects over 130 countries and regions around the world and accumulated rich experience in the design, fabrication and supply of steel buildings, as well as the erection of steel buildings, architectural materials, electrical systems .You can talk to our customer service center about your sourcing requirements.