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The factory of network frame component is processed make

1.1 preparation before production

1.1.1 steel procurement, inspection and reserve internal drawings shall be reviewed jointly with the participation of construction management personnel and relevant departments of the company. After the sample conversion, the personnel shall list the materials of various types of steel materials, summarize the material specifications and steel Numbers, and submit them to the purchaser of the engineering department for material procurement. After the material enters the factory, inspection shall be carried out according to the following methods according to the design drawings and national specifications jointly with the owner, quality supervision and design.

1.1.2 steel quality certificate. The quality certificate shall meet the requirements of the design and carry out sampling inspection in accordance with the provisions of the current relevant national standards. Those not conforming to the national standards and design documents shall not be adopted.

1.1.3 the corrosion of steel surface shall comply with the provisions of the current national standard "corrosion grade and derusting grade of steel surface before painting".

1.1.4 connecting materials (electrode, wire, flux), high strength bolts, ordinary bolts and coatings (primer and topcoat) shall have the factory quality certificate and conform to the design requirements and the relevant national standards.

Qualified steel according to the variety, brand, specifications classification pile, do a good job of identification. Steel stacking should be shaped, square, into a stack, easy to count and take; The bottom layer is lined with wood to prevent water corrosion. ,

Welding materials (electrode, wire, flux) shall be stored in a dry storage warehouse according to the brand number and batch number. The electrode and flux shall be baked and dried according to the factory certificate before use. Welding wire should remove rust, grease and other dirt.

Materials issued by the requisitioned materials, materials should be checked when the material varieties, specifications, brand is consistent with the requisitioned materials, and required quality inspection personnel in the requisitioned materials site visa approval.