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In the spiral tube in the production process, since the main processing is performed in the hot state, and therefore heating operation is a very important process of determining the quality of the fin ished product.
Such a heating operation of the key in that the blank uniformly heated to a temperature suitable for processing. Because perforation great influence on the quality, that is, the temperature at the time of boring processing is affecting the quality of the important conditions, and it is usually to perforation processing when the billet temperature control.pipe clamps stainless steel
Heating surface or outer surface of the tube within the crack, folding and eccentricity waste improperly will become.
Perforations temperature of the blank will vary according to different materials. But mostly around 1200 ℃, the carbon content and other alloying elements are more temperature slightly lower.
The second key of the heating operation is to minimize the quantity of the oxide skin. Especially in the hot extrusion elbow, tool life and surface quality of the extruded tube, more stringent requirements.
Such as hot stove, according to their role, divided into the heating furnace and the the Reheating two; the former is used for the blank was heated from room temperature to the processing temperature; latter is used for billet reheated to the required processing during the making process temperature.steel tubing clamps
In the form of the furnace, there are many kinds, but the main use of the annular furnace. This furnace having an annular hearth, it can be slowly rotated, the blank is loaded along the direction of the diameter of the hearth from the entrance, the rotary used at the outlet of the one can be heated and are heated to the predetermined temperature of one kinds of stoves.
Spiral pipe production process is relatively slow, but the factory used spiral are in line with the production specifications of th e product.
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