电动扳手的功能特点及应用行业
Functional characteristics and application industry of electric wrench
电动扳手是指拧紧和旋松螺栓及螺母的电动工具，是一种拧紧螺栓的工具。用于钢结构桥梁、厂房建筑、化工、发电设备安装大六角头螺栓施工的初拧、终拧和扭剪型螺栓的初拧，以及对螺栓紧固件的扭矩或轴向力有严格要求的场合。
Electric wrench refers to an electric tool for tightening and loosening bolts and nuts. It is a tool for tightening bolts. It is used for initial tightening, final tightening and initial tightening of torsion shear bolts in the construction of large hexagon head bolts for the installation of steel structure bridges, plant buildings, chemical industry and power generation equipment, as well as occasions with strict requirements on the torque or axial force of bolt fasteners.
电动扳手的产品名称型号不同，用途使用范围也不同。这里介绍定转矩电动扳手，供使用参考。
The product name and model of electric wrench are different, and the scope of use is also different. This paper introduces the constant torque electric wrench for reference.
定转矩电动扳手是一种能自动控制转矩的电动扳手。它适用于需要用螺栓连接的桥梁结构、大型钢塔、转矩稳定等优点。
Constant torque electric wrench is an electric wrench that can automatically control torque. It is suitable for bridge structures that need to be connected with bolts, large steel towers, torque stability and other advantages.
我国自行设计、制造的120kgf·m定转矩电动扳手是一种静转矩结构的扳手。它可作为螺栓的终拧工具，即把初拧过的螺栓再拧到规定的
The 120kgf · m constant torque electric wrench designed and manufactured by our country is a kind of wrench with static torque structure. It can be used as a final tightening tool for bolts, that is, to screw the bolts that have been initially tightened to the specified torque
电动扳手是装卸螺纹联接件的手持式电动工具，应用于汽车、拖拉机、电机电器、动力机械、阀门、水泵、纺织机械等制造业的装配工作中，在化工、水泥预制件、塑料成型等作业中则用于生产流程中装拆真空罐、反应釜和水泥模板、带螺纹塑料件的脱模工作；也可用在铁道、桥梁、建筑等工程中作水泥轨枕、桁架节点、角钢脚手架等结构的安装、检修和拆换工作。
Electric wrench is a hand-held electric tool for loading and unloading threaded connectors. It is used in the assembly of automobile, tractor, motor and electrical appliances, power machinery, valve, water pump, textile machinery and other manufacturing industries. In chemical industry, cement prefabricated parts, plastic molding and other operations, it is used for the demoulding of vacuum tank, reactor, cement formwork and threaded plastic parts in the production process; It can also be used in railway, bridge, construction and other projects for the installation, maintenance and replacement of cement sleepers, truss joints, angle steel scaffolds and other structures.
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