MT 644-1997
Active
MT/T 776-2025
Active
Industry standards-Coal
MT/T 776-2025 Specification for routine inspection of coal mining machinery hydraulic system assembly
MT/T 776-2025 Specification for routine inspection of coal mining machinery hydraulic system assembly
Basic Information
Standard Code:
MT/T 776-2025
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Special equipment and supplies for coal mines
ICS Name:
Other mining equipment
Publish Date:
2025-06-30
Implement Date:
2025-12-30
Publisher:
国家煤矿安全监察局
Technical Committee:
煤炭工业煤矿专用设备标准技术委员会
Pages:
16 pages
Scope
本文件规定了煤矿机械液压系统总成出厂检验的分类、技术要求、试验条件、试验方法及检验规则。
本文件适用于以符合GB 11118.1—2011规定的液压油作为工作介质，工作压力不高于40 MPa的煤矿机械液压系统总成的出厂检验。
Development Information
Drafting Units:
中煤科工集团上海有限公司、石家庄煤矿机械有限责任公司、上海创力集团股份有限公司
Drafting Persons:
闫茂春、冯晓迪、高奔、耿风肖、万理想
Replace the following standards
MT/T 776-2004
Referenced Standards
GB 11118.1-2011 Hydraulic fluids of L-HL、L-HM、L-HV、L-HS and L-HG type
GB/T 17446-2024 Fluid power systems and components—Vocabulary
GB/T 17489-1998 Hydraulic fluid power—Particulate contamination analysis—Extraction of fluid samples from lines of an operating system
GB/T 17489-2022 Hydraulic fluid power—Particulate contamination analysis—Extraction of fluid samples from lines of an operating system
MT/T 827-1999 Common Technical Requirements for Coal Mining Machinery Hydraulic Systems
Related Standards
MT 646-1997
Abolished
MT 646-1997 Frictional metal prop
MT 668-1997
Replaced
MT 668-1997 Technical Conditions for Flame-Retardant Steel-Mesh-Core Conveying Belt for Coal Mines
MT 669-1997
Active
MT 669-1997 Technical condition of fire-resistant steel-cable conveyor-belt in coal mining
MT/T 154.7-1997
Active
MT/T 154.7-1997 Model designation of separating equipment for coal
MT/T 660-1997
Active