Manufacturing method of non-quenched and tempered steel flange plate

The invention discloses a manufacturing method for a non-quenched and tempered steel flange plate. The manufacturing method comprises the following steps that firstly, non-quenched and tempered steel bars are blanked; the bar is heated to 1150 DEG C to 1250 DEG C and then forged and pressed in a die...

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Bibliographische Detailangaben
Hauptverfasser:	GUI WEIMIN, KOU ZHIDA, HE LIANGLIANG, XIAO JIE, MA XUYAO, ZHANG XIAOJU, FAN WANGZHAN, ZHANG XIANGZHUO, HUANG TAIWEI, HAI XIANYU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention discloses a manufacturing method for a non-quenched and tempered steel flange plate. The manufacturing method comprises the following steps that firstly, non-quenched and tempered steel bars are blanked; the bar is heated to 1150 DEG C to 1250 DEG C and then forged and pressed in a die to form a steel forge piece blank, and the final forging temperature is controlled to be 900 DEG C to 1000 DEG C; 3, controlled cooling is conducted, specifically, the steel forge piece blank in the step 2 is placed into cooling equipment, and cooling is conducted according to the heat treatment technology of the non-quenched and tempered steel through the waste heat after forging of the steel forge piece blank; the temperature entering the controlled cooling area is not lower than 850 DEG C; and fourthly, the steel forging blank cooled in the third step is machined, and the non-quenched and tempered steel flange plate is obtained. According to the method, after-forging waste heat of the workpiece is used for cool