電動扳手的功能特點及應用行業
Functional characteristics and application industry of electric wrench
電動扳手是指擰緊和旋松螺栓及螺母的電動工具，是一種擰緊螺栓的工具。用于鋼結構橋梁、廠房建筑、化工、發電設備安裝大六角頭螺栓施工的初擰、終擰和扭剪型螺栓的初擰，以及對螺栓緊固件的扭矩或軸向力有嚴格要求的場合。
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.
電動扳手的產品名稱型號不同，用途使用范圍也不同。這里介紹定轉矩電動扳手，供使用參考。
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.
定轉矩電動扳手是一種能自動控制轉矩的電動扳手。它適用于需要用螺栓連接的橋梁結構、大型鋼塔、轉矩穩定等優點。
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.
我國自行設計、制造的120kgf·m定轉矩電動扳手是一種靜轉矩結構的扳手。它可作為螺栓的終擰工具，即把初擰過的螺栓再擰到規定的
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
電動扳手是裝卸螺紋聯接件的手持式電動工具，應用于汽車、拖拉機、電機電器、動力機械、閥門、水泵、紡織機械等制造業的裝配工作中，在化工、水泥預制件、塑料成型等作業中則用于生產流程中裝拆真空罐、反應釜和水泥模板、帶螺紋塑料件的脫模工作；也可用在鐵道、橋梁、建筑等工程中作水泥軌枕、桁架節點、角鋼腳手架等結構的安裝、檢修和拆換工作。
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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