How to weld a nut to a broken bolt?

How to weld a nut to a broken bolt?

Hexagonal welding nut operation installation method solution

(1) What is a hexagon weld nut? What are the international standards?

Hexagon weld nuts are hexagonal-type nuts used for welding. The shape is hexagonal; one side is the same as the hexagonal nut, and the other has three weld points and a tab. The three weld points are used for welding, and the tab is used for positioning. Hexagonal weld nuts serve as a connection. A welding machine attaches The hexagonal weld nut to the parent body. Then screws are used to secure the desired object and are generally used with a spot welding machine, which has good welding performance and fast efficiency. This nut is widely used in automobile seats, sheet metal chassis cabinets, molds, ships, railroads, and other industries. The main standards of welded nuts are welded square nuts, welded hexagonal nuts, welded nuts for automobile seat belts, welded round nuts, welded hexagonal flange lock nuts, welded hexagonal flange nuts (welded flange surface nuts), T-type welded nuts, and other standards.

(2) What are the characteristics of hexagon welded nuts?

Hexagonal welded nuts solve the problem of ordinary nuts being unable to fix the parent body. One side of the nut has three welding points and a rounded tab. The tabs are used for positioning, and the weld points are used for welding. Firstly, the positioning holes are punched out on the female body, the nut tabs are positioned on top of the holes, and then the nut is welded to the female body using a spot welder. The welding principle is to melt the three welding points of the nut at a high temperature so that the welding points are melted on the mother body to achieve the welding effect. This connection belongs to the non-removable connection.

(3)What are the materials and specifications of hexagonal welded nuts?

Executive standard: DIN929, convex welding positioning accuracy and size consistency, uniform strength at all points of the weld, convex welding can ensure that the thread does not anneal and does not reduce the precision, the appearance of the weldment is beautiful and high productivity, there is no CO2 gas and flux skin fumes on the human body can be to improve the working environment.

A hexagonal welding nut is a kind of nut suitable for welding outside the nut. It is a kind of fastener with internal thread, used together with screws. It is widely applicable, has high strength and high-temperature resistance, is not easy to deform, and is used in some products, especially automobiles and machinery.

Thread specification M3M 4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M33 M36 M39 M42 M48 M52 M56 M60 M64 Pitch is 0.5 0.7 0.8 1.0 1.25 1.5 1.75 2.0.

(4) Hexagonal welding nut installation method solution

1. Preparation: Choose a nut material suitable for welding, such as carbon or stainless steel. Ensure the nut's surface is clean and free of grease or other dirt.

2. Welding equipment selection: Choose equipment suitable for welding nuts, such as standard arc welding machines or gas-shielded welding machines. According to the nut's material and size, select the appropriate welding current and rod.

3. Welding position: Determine the position and angle of the nut welding to ensure that the welding nut can be heated entirely from both sides and lubricate the welding material.

4. Nut fixing: Use bolts or other tools to fix the nut in the desired position, ensuring that it will not move or tilt during welding.

5. Preheating can improve weld quality for more extensive or thicker nuts. Before welding, use an open flame or other heat source to heat the nut area adjacent to the weld.

6. Welding method: Select the appropriate welding method according to the type of welding equipment. Use suitable welding materials, such as welding rods, wires, etc., and apply the welding materials evenly to the nut weld.

7. Control welding temperature: The temperature of the welding area should be controlled during welding to avoid overheating or overcooling. Overheating may damage or deform the nut, and overcooling may cause a weak weld.

8. Post-welding treatment: After welding is completed, wait a few moments to allow the welded area to cool naturally, then remove the bolt or other tools to check the quality of the weld and follow up with grinding and cleaning if necessary.

9. Protective measures: During the welding process, appropriate protective equipment, including welding masks, welding gloves, and protective clothing, must be worn to avoid injury or the production of harmful gases and light.

10. Practice and Exercise: Welding nuts requires a certain amount of skill and experience, and welding skills and quality are gradually improved through practice and exercise.

With the continuous improvement of the quality of weld nuts and the industry's needs, various weld nuts came into being. Weld nuts are becoming more and more widely used, especially in the automotive industry, where they are used in chassis beams, gearboxes, seat belts, and other important parts. Hexagonal welding nuts are easy to use, high-efficiency, and beautiful in appearance. More and more products use hexagonal welding nuts.

If you need help installing weld nuts and providing professional technical support, please get in touch with us at adelajonly@gmail.com or visit our website at https://www.juxinfasteners.com.