Process innovation of calcium carbide barrel flange
Process innovation of calcium carbide barrel flange
The inner-loading calcium carbide barrel produced by our factory has a flange ring, and its size requirement is shown in Figure 1.
The original process for manufacturing this flange is: after heating 40×4 mm flat iron, it is placed on a special curved flange machine to become the shape shown in Figure 2. Then, the material and the electric welding head are cut according to the figure, and then Drilling tapping to make a flange ring. This process has many disadvantages:
1, corrugated wrinkles, poor quality;
2. Consumable materials, labor and energy. The two heads of a flange are 300 mm long, which is both a material head and a collet. It cannot be saved. Each actual consumption is 1.5 kg, and the parts themselves weigh only 1 kg.
3, production efficiency is low, not available for production needs.
In response to these shortcomings, we have revolutionized the flange manufacturing process and conducted many tests, which have achieved satisfactory results.
The improved process is:
1. Bend into a ring as shown in Figure 3;
2, the whole circle;
3. Electric welding head;
4, formed on a 120-ton punch, turned into nearly 45 °, as shown in Figure 4.
5. Annealing the stamped deformed flange to eliminate work hardening. We heat-anneal the joint at the joint with gas welding.
6, the second stamping flattening, you can.
The advantages of the innovative process are:
1. High production efficiency, which can be increased by 4 times compared with the original process;
2. Each saving 0.25 kg of steel;
3. Saving about one-third of energy (coal, oxygen and acetylene).
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