※ Any batch raw steel material must have the Material Test Certificate(MTC), and the material will do the spot inspection to make sure the steel material complied with the standard.
※ As for the electric component, such as the motor and contector, brake and so on, All must have the qualified certificate, and also will do the spot power on inspection.
※ The operator shall be familar with the technical requirement and drawing.
※ Equipment management department will be regularly check the facilities to ensure the equipment processing precision. All the measuring instruments shall be calibrated regularly, Non calibrated instruments are not permitted to used.
※ As for the heat Treatment, heating medium and cooling medium meet standard requirements, regular analysis of the media according to the technical requirements.
※ General Heat Treatment: heating temperature, holding time, holding temperature, cooling, cooling rate, and temperature of the cooling medium, oven temperature, quench transfer time and other parameters.
※ In addition to the process control parameters listed, but also on carbon carburizing process heat strict control chemical treatment, ion nitriding Shihai control nitriding time, holding time, heating speed and so on.
※ All the welder shall be certified according to the technical grade standards of the workers, and shall be certified to work after assessment.
※ All Welding equipment, cutting equipment have accurate display of process parameters ( current, voltage, speed, etc. ) measurement instrumentation for monitoring the implementation of the process specification.
※ Welder shall proficiently master the technical specifications of welded parts, be acquainted with the performance and main parameters of the process equipment, and make sure proper use of the equipment.
※ Working procedure inspection should be carried out during rib plate blanking, web plate laying off and blanking, cover plate butt joint, assembly welding of main girder box and main girder so that the quality of blanking and assembly welding can satisfy the requirements of welding quality. Final inspection should be conducted to welded finished product, and the ultrasonic flaw detection inspection to joint welds. Please see to the ultrasonic flaw detection report for detailed requirements.
All the hoist will do the pre-commisioning before packing. And the crane will be pre-assemble to check the crane preformance. Only all the test results are meet the technical specifications, then the qualified certificate will be released.
Welcome clients appointed the Third Party to do the inspection to make sure the hoist and crane performance.
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