What size hammer should I use to smash bolts?
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The M100 bolts on the reactor's large cover are leaking airtightly. I used an 18-pound sledgehammer to hit the wrench to tighten them, but I was always nervous, just to prevent them from leaking. There was no standard. In the past, we used adjustable wrenches to tighten the bolts, and they were always broken. We were always worried that something would happen one day. Do you have any experience in this regard? Any words of experience? In the past, my master said to add a one-meter long tube to the wrench and use a hand wrench, but now our strength is obviously much stronger. Replies have ratings.
Haha, I really wanted to laugh after reading the poster’s honest words... It’s not a joke... If this is seen by foreign engineers and technicians, I guess your products will never be exported... In fact, the torque of the bolts can be calculated during the design of the drawings. Just use a force measuring wrench to tighten according to the data... If you hit it with a hammer, it will be too much... Maybe some bolts have yielded and you don't know it... It is easy to be dangerous...
Sir, you can go to the building materials market and buy a torque wrench. It is very easy to use. The tightening bolts are tightened in pairs. You are not fooling around. Yours are all M100. Be careful and ensure that the force is balanced.
The M100 bolts on the large cover are tightened with an 18-pound sledgehammer and a wrench. They are a bit hanging.； Can the torque of the M100 bolt be reached by adding a one-meter long tube to the wrench? What is the problem? What is the diameter of the flange, and what is the temperature and pressure?
Nowadays, there is something called a "labor-saving cylinder", which is said to have seven-stage gears, so that through the drive of the gears, a small force can produce a large torque. I heard this from a master from an engineering company last time. The host may wish to inquire.
This product is called a torque multiplier and is sold by many companies. For M100 bolts, the opposite side of the nut is 145. If it can be pre-tightened with a sledgehammer, it means that the torque is not very large. It is recommended to use a controlled method such as a hydraulic wrench to pre-tighten. Contact me if necessary.