The processing flow of cold-drawn steel produced by combined drawing machine

1. Raw material wire rod (the section shape can be round, square, hexagonal, flat and abnormal)

2. Unroll and unload

3. Raw material oxide scale must be cleaned first. Shot blasting machine or pickling can be used.

4. Pre-straightening: The purpose is to straighten the raw materials and remove some of the stress to provide higher efficiency for the entire production line.

5. Mold: use tungsten steel mold or poly crystal mold. The choice of the mold and the manufacturer of the mold production is particularly important, the mold is mainly reflected in the material diameter tolerance accuracy, service life, drawing speed, whether it will draw hair and whether it is easier to straighten.

6. Oil drawing: The combined drawing machine generally USES the method of oil drawing to draw materials. The selection of drawing oil is also very important, special drawing oil needs to be used. Pull-out oil is recycled, different manufacturers of pull-out oil is also different, it is recommended to buy high-end products.

7. Continuous drawing: There are two trolleys on the main drawing machine of the joint drawing machine. The trolleys are driven by the CAM, and the trolleys clamp and release the materials.

8. Fine straightening: The straightening of raw materials, especially the straightening of special-shaped materials, is particularly critical.

9. Flying shear: The material does not stop, and shear the material. The smaller the shear tolerance of the material, the better. Waste of materials can be avoided and packaging is easier.

10. Feeding rack: Send the cut round rod to the two-roll straightener

11. Two-roll straightener: it only straighteners round rods. Its quality ultimately determines the straightness, finish and tolerance of the polished rod.

12. Material receiving rack: collect the finished products of drawing