How to take out broken bolts with explosion-proof ring wrench-Hebei Botou Safety Tools Group Co., Ltd.|Hardware|Tools

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How to take out broken bolts with explosion-proof ring wrench

Release time:

Feb 25,2022

The ring wrench refers to a wrench with two ends of the ring, and the two ends of the ring are not the same size, which is easy to see in real life. The rotating bolt part and the handle part are staggered when viewed from the side. This structure is convenient for disassembly and assembly. Bolts and nuts in the recessed space can provide operating clearance for fingers to prevent scratches. How to use the ring wrench to take out the broken bolts?

ring wrench refers to a wrench with two ends in a ring shape, and the two ends are not the same size, which is easy to see in real life. The rotating bolt part and the handle part are staggered when viewed from the side. This structure is convenient for disassembling bolts and nuts assembled in the recessed space, and can provide operation clearance for fingers to prevent scratches. How to use a ring wrench to take out the broken bolts?

1, break the sludge on the surface of the bolt's broken head, use the center spear to kill the center spear of the section, then use the electric drill to install a drill bit with a diameter of 6-8mm to drill the hole in the center of the section, pay attention to the hole to be drilled through, after the hole is drilled through, remove the small drill bit, replace it with a drill bit with a drill bit with a diameter of 16mm, and continue to expand the hole with a hole with a hole with a hole with a hole.

2, take the welding rod with a diameter of less than 3.2mm, use small and medium current to surfacing from inside to outside in the drilling hole of the broken bolt, take half of the whole length of the broken bolt at the beginning of surfacing, start the arc should not be too long, so as not to burn through the outer wall of the broken bolt, surfacing welding to the upper end face of the broken bolt, and then continue to surfacing welding a diameter of 14-16mm, cylinder 8-10mm high.

3. After surfacing welding, hammer the end face with a hand hammer to vibrate the broken head bolt along its axial direction. Due to the heat generated by the previous arc and the subsequent cooling, coupled with the vibration at this time, the broken bolt will loosen the thread of the machine body.

4. Observe carefully. When a trace of rust is found to leak from the fracture after knocking, the nut can be sleeved on the surfacing stud and the two can be welded together.

5, slightly cool after welding, twist the nut left and right with a ring wrench while it is hot, or knock the end face of the nut with a small hand hammer while twisting back and forth, so that the broken bolt can be taken out.

After taking out the broken bolt with a ring wrench, use a suitable wire hammer to process the screw thread in the frame again to remove rust and other sundries in the hole.

Focus on hot spots

President of China Foundry Association came to the company to investigate the renovation project of explosion-proof tools.

On January 9, 2022, Zhang Libo, President of China Foundry Association, Fan Qi, Vice President, and his party came to our company to investigate and guide the upgrading and transformation project of the sixth generation of explosion-proof tools. Mr. Yang Qinglai, Chairman of the Group Company, accompanied the explanation. During the investigation, President Zhang Libo highly praised Zhongbo Group's outstanding contribution to China's explosion-proof tools, affirmed the development of Zhongbo Group, and gave hope for the future of Zhongbo Group.

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Hebei Botou Safety Tools (Groups) Co., Ltd. invites merchants to participate in the exhibition

Thank you for your support and trust to Zhongbo Group. Our company is scheduled to participate in the 68th Autumn National Hardware Fair in 2019 from September 20, 2019 to September 22, 2019 at Shandong Linyi International Convention and Exhibition Center. Booth number: A188. From September 26, 2019 to September 28, 2019, he participated in the 12th China (Dongying) International Petroleum and Petrochemical Equipment and Technology Exhibition at the Yellow River International Convention and Exhibition Center in Dongying, Shandong. Booth number: T103. I hope that through this opportunity to discuss and communicate with your company, so that we can have more in-depth cooperation. You are cordially invited to attend.

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