Guangzhou Steel teach you: Steel supervision next station control points
(1) Before the construction supervisors to deal with the approach of materials (steel, high-strength bolts) check, approach the material must have factory quality certificate and sampling site is intended for use after passing inspection, welding rod, wire, flux should meet the requirements .
(2) Check the installation of the production staff of technical welder qualification certificate, so certificates.
Welding income margin, cutting and other allowance and column in compression load deformation value (3) the material according to process requirements, making installation reserved.
(4) member when assembled, to prevent distortions member bagging inaccurate.
(5) welding to adhere to a thickness greater than 50mm carbon structural steel and low-alloy structural steel before welding larger than 36mm preheat hot after welding performed.
(6) the quality of the weld seam inspection in addition to dimensions, surface quality inspection, but also check the internal weld defects, according to the requirements of the drawing to determine the grade of weld quality grade and defects NDT.
(7) Before installing the column, a detailed examination of the relative position of the axis of the anchor bolts and offset.
(8) a single vertical column of steel columns, with one column capitals elevation sections deviations on the wrong port value under the column connection.
(9) Guangzhou Steel steel member during product delivery, product quality must have approval and certification, in order to be sent to the installation site, after installation departments for product acceptance Engineer focused on installation and connection components in place to check on the situation and members steel members connected with the concrete peg holes reservation wear bars.
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