1 Scope
This standard specifies terms and definitions, technical requirements, repair and inspection of structural parts of powered support (hereinafter referred to as structural parts) in mining.
This standard is applicable to the material preparation, welding, repair and inspection of structural parts.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated reference, only the dated editions are applicable to this document. For the undated references, the latest editions of the normative documents (including all the amendments) are applicable to this document.
GB/T 3274 Hot-rolled Plates and Strips of Carbon Structural Steels and High Strength Low Alloy Structural Steels
GB/T 5118 Low Alloy Steel Covered Electrodes
GB/T 8110 Welding Electrodes and Rods for Gas Shielding Arc Welding of Carbon and Low Alloy Steel
GB 9448 Safety in Welding and Cutting
GB/T 11345-1989 Method for Manual Ultrasonic Testing and Classification of Testing Results for Ferritic Steel Welds
GB/T 11352 Cast Carbon Steels for General Engineering Purposes
GB/T 12361 General Specification of Steel Die Forgings
GB/T 12470 Low-alloy Steel Electrodes and Fluxs for Submerged Arc Welding
GB/T 13264 Sampling Procedures and Tables for Small Lot Inspection by Attributes for Percent Nonconforming Items
GB/T 16270 High Strength Structural Steel Plates in the Quenched and Tempered Condition
GB/T 17493 Low Alloy Steel Flux Cored Electrodes for Arc Welding
GB/T 19869.1 Welding Procedure Qualification Test for Steels, Nickel and Nickel Alloys
GB 25974.1 Powered Support for Coal Mine - Part 1: General Specification
JB/T 10375 Recommended Practice for Vibration Stress Relief on Welding Structure
YB/T 4137 Low Welding Crack Susceptibility for High Strength Steel Plates
HG/T 2537 Carbon Dioxide for Welding Use
HG/T 3728 Mixed Gas for Welding Argon-Carbon Dioxide
3 Terms and Definitions
For the purpose of this standard, terms and definitions defined in GB 25974.1 apply. For the convenience of application, terms and definitions in GB 25974.1 are listed repeatedly.
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
4 Technical Requirements
5 Repair
6 Inspection
