This standard specifies the technical requirements, test methods, inspection rules as well as marking, packaging, transportation and storage of hydraulic support column.
This standard is applicable to mining hydraulic support column with emulsion as the medium (hereinafter referred to as the "column").
2 Normative References
GB 197 General Purpose Screw Threads - Tolerances and Fits for Diameter from 1 to 355mm
GB 1184 Geometrical Tolerancing - Geometrical Tolerances for Features without Individual Tolerance Indications
GB 1804 General Tolerances - Tolerances for Linear and Angular Dimensions without Individual Tolerance Indications
GB 2649 Methods of Sampling for Mechanical Properties Tests of Welded Joint
GB 2650 Impact Test Methods on Welded Joints
GB 2651 Tensile Test Method on Welded Joints
GB 2652 Tensile Test Methods on Weld and Deposited Metal
GB 2653 Methods of Bend and Compression Tests for Welded Joint
GB 3452.1 Fluid Systems - Sealing Devices - O-rings - Inside Diameters, Cross-sections, Tolerances and Size Identification Code
GB 3452.3 Fluid Systems - O-rings - Design Criteria for O-Ring Housing-Basic Calculation
GB 11352 Carbon Steel Castings for General Engineering Purpose
GB 13306 Plates
JB/ZQ 4000.3 General Specifications for Welding Parts
JB 3338 Cylindrical Helical Compression Springs for Hydraulic Parts - Technical Conditions
MT 76 Emulsifying Oil Concentrate and High-water Content Hydraulic Fluid Used for Powered Support and Prop
