The joint pair form of torsion-shear high-strength bolts is stipulated in GB/T3632-2008: the joint pair includes a screw, a nut and a washer.
Provisions for the installation of high-strength bolts with twisted shear type: high-strength bolts shall be free to enter the holes during installation, and no forcible knocking shall be allowed. When the bolt is not free to Pierce, do not use gas cutting hole reaming, reamer hole, hole repair need to make the plate layer close, in order to prevent the iron chip into the plate seam, after reaming hole to use a grinder to clear hole edge burr, and remove the iron chip.
Tighten the bolt to 60% ~ 80% of the standard shaft force (0i.e., design pretension), and the initial torque value shall not be less than 30% of the final torque value. From the joint stiffness of the direction of the unconstrained free end.
Electric torsional shear wrench mainly end of torsional shear type high strength bolt, its purpose is to put the wobbler torsional shear type high strength bolt can be cut, work aim the spanner head bolt head, pull the switch begins to work, after a few seconds, bolt wobbler will be broken, and then take out a wrench will wobbler pop up to pull the trigger, thus good torsional shear type high strength bolts fastening the.
For electric wrench, HanPu electric wrench is recommended
Features of HanPu Electric wrench:
1. The machine is small in size, light in weight, easy to operate and can be used in a narrow space
2. The electric wrench of HanPu is imported from Germany, with large power, small volume and fast speed of torsion shearing, which can obviously improve labor efficiency
3, long service life, the use of high-quality raw materials, several processing procedures, coupled with the unique heat treatment technology and lathe processing technology, the products produced long service life.
4, strong impact resistance, the use of quality raw materials, durable
Shandong HanPu machinery industrial co., LTD., is set research and development, production, sales in the integration of professional electric tool manufacturers, the main products: electric torsional shear wrench, electric torque wrench detector, portable bolt torque, axial force torque, axial force, etc., after 20 years of innovation and development, the company now has 62 acres of industrial parks and 3 square meters production development workshop, introduced a large number of high-end processing equipment made in Switzerland, Germany, Japan, become large domestic production base of electric wrench.