GB 2494-1995 Abrasives Safety Rules GB2494-1995 Standard download decompression password: www.bzxz.net

9.6 Safety Supervision
GB15735—1995
9.6.1 Heat treatment production sites should be equipped with necessary testing instruments to monitor the levels of dangerous and harmful substances. 9.6.2 The safety protection devices, locking loading and automatic pre-control systems used in heat treatment sites should be regularly checked for integrity according to the corresponding standards or technical documents, and shall not be arbitrarily stopped or dismantled. 9.6.3 When using dangerous and toxic gases, the inspection of exhaust ventilation devices should be strengthened, and a signal indication system should be installed. 9.6.4 Cyanide salt baths and salt baths of mixtures of nitrates and nitrites should be equipped with molten salt overheating forecast devices. 10 Safety and health management measures
10.1 Basic requirements
The heat treatment workshop should implement modern management with the goal of ensuring the safety and hygiene of the production process. The basic requirements are! a) Discover, analyze and eliminate various dangerous factors and harmful elements in the production process; 6) Formulate corresponding safety and health rules and regulations; c) Provide safety and health knowledge training and education to various personnel; d) Prevent accidents and occupational diseases and avoid various losses. 10.2 Personnel
10.2.1 Basic requirements for personnel:
a) Psychological and physiological conditions should meet the requirements of the nature of the work! b) Physical examinations should be carried out regularly, and their health status must meet the requirements of the nature of the work. 10.2.2 Skill requirements for personnel:
a) Must master the production skills of this profession or this position, and undergo safety and health knowledge training and assessment, and can only take up the position after passing the assessment; b) Be familiar with the dangers and harmful factors that may exist and be generated in the heat treatment production process, master the conditions that lead to accidents, and be able to take preventive measures according to the nature and path of their hazards c) Understand the work content of this position and its relationship with related operations, and master the methods and measures to complete the work d) Master fire protection knowledge and the use and maintenance methods of fire protection equipment; e) Master the use and maintenance methods of personal protective equipment f) Master the methods of emergency treatment and emergency rescue. 10.3 Safety and health management organization
10.3.1 Establish and improve the safety and health management organization in accordance with relevant national regulations. 10.3.2 The safety and health management organization shall inspect, supervise and implement the instructions and regulations issued by the state and departments in accordance with the functions and responsibilities stipulated by the state and relevant departments, formulate necessary rules and regulations, and implement comprehensive and systematic standardized management. National Standard of the People's Republic of China
Safety rules for bonded abrasives
Safety rules for bonded abrasives1 Subject content and scope of application
GB 2494--1995
Replaces GH 2494--84
This standard specifies the maximum operating speed of abrasives, acceptance, storage, installation, use and safety requirements for the equipment used. This standard is applicable to general abrasives.
2 Referenced standards
Test method for rotation of grinding wheels
GB/T 2493
GB4674 Safety regulations for grinding machinery
3 The maximum operating speed of the abrasive tool shall not be less than that specified in the following table; No.
Name of abrasive tool
Flat grinding wheel
Tap and die polishing wheelwww.bzxz.net
Graphite polishing wheel
Mirror grinding wheel
Flexible polishing wheel
Thread grinding wheel
Resin heavy-duty steel restoration| |tt||Grinding wheel
Simple grinding wheel
Single bevel grinding wheel
Double bevel grinding wheel
Single concave grinding wheel
Cup grinding wheel
Double concave No. 1 grinding wheel
Double concave No. 2 grinding wheel
Shape code
Vitrified bond
Approved by the State Administration of Technical Supervision on December 1, 1995 Resin bond
The most High working speed, m/s
Rubber binder
Magnesium binder
Reinforced resin binder
Implemented on 1996-08-01
Name of abrasive tool
Bowl-shaped grinding wheel
Dish-shaped grinding wheel
Single-sided concave tapered grinding wheel
Double-sided concave tapered grinding wheel
Ammonium-shaped grinding wheel
Bolt-fastened flat grinding wheel|| tt||Single-sided convex grinding wheel
Thin slice grinding wheel
Rotor groove grinding wheel
Rice milling grinding wheel
Sunflower magnesia grinding wheel
Security blade grinding wheel
High-speed grinding wheel
Brown corundum 30* and coarser
And M and harder grinding wheel
Slow feed strong grinding wheel
Small grinding wheel
Shape code
GB 2494-1995
Maximum working speed, m/s
Vitrified bond
50-~60
Resin bond
Rubber bond
Note: Abrasive tools with special maximum working speed should be manufactured according to user requirements, but must be marked with eye-catching marks. 4
Acceptance and storage of abrasive tools
Abrasive tools must be inspected by the manufacturer before leaving the factory. They can only leave the factory after they pass the inspection. 4.1
Lingkuqi binder
Reinforced resin binder
60~-80
4.2 The user must carefully inspect the abrasive tools after receiving them to see if they have cracks and damage. The grinding wheel should make a crisp sound when knocked by a wooden chain. Before use, the rotation test should be carried out according to GB/T2493. Grinding wheels that have not been inspected are strictly prohibited from being installed and used. 4.3 Prevent vibration and collision when transporting abrasive tools. 4.4 When stacking grinding wheels, the height of the inspection should generally not exceed 1.5m. 4.5 Rubber and resin bonded thin grinding wheels should be prevented from deformation during storage. 4.6 Abrasive tools should be stored in a moisture-proof and frost-proof manner.
:comGB2494—1995
4.7 Abrasives with resin, rubber and chrysanthemum bond should be marked with the date of production. If the storage time exceeds one year, it should be re-tested and used after confirmation of compliance.
4.B Abrasives with working speed requirements must be marked with the maximum working speed. 5 The installation, use and requirements for the equipment used shall be in accordance with the provisions of GB4674. Additional remarks:
This standard was proposed by the Ministry of Machinery Industry of the People's Republic of China. This standard is under the jurisdiction of the National Abrasives and Grinding Tools Standardization Committee. This standard was drafted by the Zhengzhou Abrasives and Grinding Research Institute of the Ministry of Machinery Industry. The main drafters of this standard are Niu Wenlong, Zhao Hongmei and Si Xiuying.
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