Standard No.:	MT 326-1993
English Name:	U-type Steel Roadway Support Clip Line with Contractibility
Chinese Name:	U型钢可缩性巷道支架卡缆
Chinese Classification:	D97    Mine support equipment
Professional Classification:	MT    Professional Standard - Coal
Source Content Issued by:	MOE
Issued on:	1993-2-25
Implemented on:	1993-10-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	2000 words
Translation Price(USD):	204.0
Delivery:	via email in 1 business day

MT 326-1993 U-shaped steel retractable roadway bracket clamp 1 Subject content and application scope This standard specifies the terms, classification, technical requirements, test methods, inspection rules, as well as marking, packaging and storage of U-shaped steel retractable roadway bracket clamp (hereinafter referred to as "clamp"). It is applicable to all kinds of clamp used for U-shaped steel retractable roadway bracket 2 Terms 2.1 U-shaped steel retractable roadway bracket roadway bracket realizing the section shrinkage by the relative sliding of two sections of U-shaped steel in the U-shaped steel overlapped section under the action of external force For example: trapezoidal U-shaped steel retractable bracket, arched U-shaped steel retractable bracket, etc. 2.2 clamp connecting and locking device for two sections of U-shaped steel in the U-shaped steel retractable roadway bracket 2.3 test piece linear test component with two sections of U-shaped steel overlapped together, connected and locked with clamp to realize relative slip under the axial pressure generated by pressure machine 2.4 joint resistance friction force that must be overcome when pushing two sections of U-shaped steel to generate relative sliding 2.5 maximum working resistance maximum joint resistance of the test piece when the clamp is under a certain nut torque or knocking force

1 Subject content and application scope 2 Terms 4 Technical requirements 5 Test methods 6 Inspection rules 7 Marking, packaging and storage of products Additional explanation