No. 2238, Sanzhen Road, Gaomi City, Shandong Province, China +86-13608986729

Gaomi Wantai Steel Structure Engineering Co., Ltd.

Quality Philosophy

WANTAI attaches great importance to the quality control of welding structures. For each engineering order, our senior welding engineers and quality inspectors work together with customers and partners to carry out and complete each step of quality control, and carry out all the testing content listed in the ITP. Our work complies with the international standard quality management system ISO 9001:2008 and the needs of different customers

Inspection content and steps

  • Raw material and production testing

    Dimensional inspection, welding material and weld inspection, trial assembly test

  • nondestructive testing

    Ultrasonic testing, liquid testing, magnetic particle testing, and radiographic testing

  • Surface treatment and spraying standards

    Surface roughness, shot blasting, DFT measurement, molten salt corrosion test, adhesion test

Process flow diagram

  • 01
    Raw materials and consumables

    Visual inspection                                
    Factory inspection form and furnace batch number inspection  
    Dimensional inspection

    Cutting and discharging

    Raw material labeling                                
    Material discharge                                
    Heat number and other markings                                
    Dimensional inspection

    Welding, tooling, and drilling

    Curled edge                                
    Trimming edge                                
    Beveling processing                                
    Component assembly                                
    correction                                
    size

    Flow chart
  • 02
    Welding: arc welding, gas shielded welding

    Welding material re inspection
    Pre heating
    WPS, Welding Procedure Qualification
    Welder certificate
    Welding dimensions and continuity
    Non destructive testing
    heat treatment

    Final inspection: size, sandblasting, galvanizing, painting

    Verify the dimensions again according to the drawings
    Shot blasting and spray re inspection
    Sandblasting surface contour
    Carving coating
    Paint material and factory inspection form
    Spray quality and appearance testing

    Flow chart
factory pictures
factory pictures
factory pictures

Certified by the
Canadian Welding Industry Association

  • certificate
  • certificate
  • certificate
  • certificate

+86-13608986729

nick@wantaisteelstructure.com

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