Ot rolling seamless billet can be forged billet, billet, slab, billet centrifugal casting. In machine shop, strip short or long blanks, saw, drill deep holes, back and chamfer to extrude production line.

First, the billet is processed into the first washing machine, degreased in front of the annular furnace, and then into the annular furnace. Ring billets are usually heated to a furnace less than 900 degrees. However, according to the process requirements, it is heated directly to the hot extrusion temperature (not directly extruded blank). Then enter the vertical induction furnace and heat the material to the hot extrusion temperature. The heated billet draws a good glass material on the worktable outside the good dust collector. The robot blows the blank punch into the cylinder hole, and then adds the glass material to the blank end of the clock. Then, in legislation, red (extended) punches. The heating is caused by the decrease of the exposure temperature of the hollow billet and die hole after punching (expansion), but the temperature difference of the heated surface of the glass material is usually removed before heating. The surface of the glass billet is removed, and then the ingot is heated through the inner and outer surfaces of the glass material, and the coatings of the heated billet are extruded into the central extruder. After the extrusion product is finished, the press is separated from the separating saw. Products and tools need proper cold treatment.




It is well known that under the premise of reasonable design of interference quantity, multi-layer interference tube hot extrusion tube can preheat the wire size under the drawings, clean the glass wall regularly before use, and inspect the scratches on the inner wall to exceed 10,000 under 5000 normal life. Extrusion die and metal contact time of the longest extrusion process, relatively low life. For the general requirements of longer die life, the faster the extrusion speed, the shorter the cutting interval and the shorter the metal residence time in the extrusion die, each extrusion die of the extrusion die should be inspected and processed after extrusion, not only to ensure product quality, but also to improve the service life of the extrusion die. Due to the small area wrapped in hot metal extrusion when the puncture needle bursts, the temperature rises sharply due to the decrease of mechanical properties, so sufficient cooling must be provided. The design of extruder and punch for internal cooling steel designed abroad, but the effect is more general. For small size pinching cold holes, the punch strength is greatly reduced, and the back of the needle is easily broken, while the large size of the punch makes the cooling speed too slow. In the design of 36MN stainless steel extruder, Dongze company considers that the specific cooling system for small and medium-sized objects is not a product design, but a special cooling device for puncture needle has been designed. After cooling, good results have been achieved. Therefore, the service life of the puncture needle has been greatly increased from 10 to 30 times to more than 100 times.