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1. 发明授权

KR101286121B1 고온 내마모성 및 기계적 강도가 우수한 열간압연용 고탄소 단조 워크롤 및 이의 제조방법 有权
标题翻译：高温高温耐磨性和机械强度的热轧高碳钢锻造辊及其制造方法
公开(公告)号：KR101286121B1
公开(公告)日：2013-07-17
申请号：KR1020120157801
申请日：2012-12-31
申请人： 서한산업(주)
发明人： 권민기 , 박영태 , 민규영
IPC分类号： B21K1/02 , B21K21/00 , B21J5/08 , C22C38/00
CPC分类号： B21K1/02 , B21J5/08 , B21K21/00 , C21D1/28 , C22C38/04 , C22C38/34 , C22C38/44 , C22C38/46 , C22C38/56
摘要： PURPOSE: A high carbon forging work roll for hot rolling having an excellent wear resistance at high temperature and mechanical strength and a manufacturing method thereof are provided to implement a step of hot forging and a step of a heat treatment on the work roll at an optimal temperature range, thereby providing the high wear resistance at the high temperature to the work roll. CONSTITUTION: A manufacturing method of a high carbon forging work roll for hot rolling having an excellent wear resistance at high temperature and mechanical strength includes: a step of manufacturing an ingot; a hot forging step of forming the work roll with heating and forging the ingot in a heating furnace; and a heat treatment step of heat-treating the work roll with passing the work roll through a step of normalizing, a step of forcible cooling, and a step of tempering. The hot forging step includes: an initial hot forging step of sequentially implementing an upsetting process and a cogging process at a temperature of 950 to 1200°C; and a final hot forging step of implementing a finishing process at a temperature of 700 to 950°C. [Reference numerals] (AA) Start; (BB) End; (S100) Ingot manufacturing step; (S200) Work roll heating and forging step; (S300) Heat-treating step
摘要翻译：目的：提供在高温下具有优异的耐磨性和机械强度的用于热轧的高碳锻造工作辊及其制造方法，以实现热锻的步骤和在工作辊上的最佳热处理步骤温度范围，从而在高温下对工作辊提供高耐磨性。构成：在高温下具有优异的耐磨性和机械强度的用于热轧的高碳锻造工作辊的制造方法包括：制造锭的步骤; 在加热炉中加热和锻造锭的工作辊的热锻造步骤; 以及通过使工作辊通过标准化步骤，强制冷却步骤和回火步骤对工作辊进行热处理的热处理步骤。热锻造步骤包括：在950〜1200℃的温度下依次实施镦锻加工和齿槽加工工序的初始热锻造工序; 以及在700〜950℃的温度下进行精加工的最终热锻工序。（附图标记）（AA）开始; （BB）结束; （S100）锭制造工序; （S200）工作辊加热锻造步骤; （S300）热处理工序

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