Method for inhibiting core network cementite of high-carbon steel wire rod SWRH82B

The invention discloses a method for inhibiting core network cementite of a high-carbon steel wire rod SWRH82B. The method comprises the following steps: in each 82B blank heating section temperature interval, the temperature of a preheating section is less than or equal to 750 DEG C, the temperatur...

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Bibliographische Detailangaben
Hauptverfasser: SHUAI HONGQUAN, LIU YANG, TANG YONG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a method for inhibiting core network cementite of a high-carbon steel wire rod SWRH82B. The method comprises the following steps: in each 82B blank heating section temperature interval, the temperature of a preheating section is less than or equal to 750 DEG C, the temperature of a heating section is between 1150 and 1190 DEG C, and the temperature of a soaking section is less than or equal to 1150 DEG C; a 82B controlled rolling and controlled cooling process is adopted, the trade mark is 82B, the specification phi is 12.5 mm, the initial rolling temperature is 980-1020 DEG C, the BGV inlet temperature is 880 +/-10 DEG C, the BGV outlet temperature is 880 +/-10 DEG C, the rolling speed is less than or equal to 24 m/s, and the spinning temperature is 865-895 DEG C; a 82B after-rolling cooling process is adopted, the starting speed of a roller bed is 0.5 m/s, the opening degrees of a first fan and a second fan are both 100%, the opening degrees of third to eighteenth fans are H, and the