公开(公告)号：KR1020160116151A

公开(公告)日：2016-10-07

申请号：KR1020150042264

申请日：2015-03-26

Applicant: 현대자동차주식회사

Inventor： 유지민 ,  전형진 ,  구원석 ,  류현곤 ,  윤준철 ,  최현규

IPC: B22F9/04 ,  B02C18/06

CPC classification number: B22F9/04 ,  B02C18/06 ,  B22F2009/045

Abstract: 소재분쇄장치에관한발명이개시된다. 개시된소재분쇄장치는, 무한궤도방식으로회전하여소재를이송시키는소재이송부재와, 소재이송부재로부터전달받은소재의이동을안내하고, 단부에요철이형성되는소재안내부재와, 소재안내부재의일측에위치하며, 요철에맞물리는형상으로형성되며, 회전시 소재안내부재와의사이에진입하는소재를분쇄하는회전분쇄부재를포함하는것을특징으로한다.

公开(公告)号：KR1020160116150A

公开(公告)日：2016-10-07

申请号：KR1020150042263

申请日：2015-03-26

Applicant: 현대자동차주식회사

Inventor： 윤준철 ,  류현곤 ,  구원석 ,  유지민 ,  최현규

IPC: G01N5/04 ,  G01N1/40 ,  B22F9/08 ,  G01N9/00 ,  G01N27/82 ,  G01N27/72 ,  G01N23/223 ,  G01N23/02 ,  G01N24/08

Abstract: 일실시예에따르는철계분말의불순물분석방법에있어서, 소정조성의용강으로부터분사법에의해제조되는철계분말을수집한다. 상기철계분말을산성용액에침지시키고, 상기철계분말중 금속성분을상기산성용액에용해시킨다. 상기철계분말중 상기산성용액에용해되지않고잔존하는성분을추출한다. 상기추출된비용해성분의중량을측정한다.

公开(公告)号：KR1020120125817A

公开(公告)日：2012-11-19

申请号：KR1020110043498

申请日：2011-05-09

Applicant: (주)테너지 ,  대한소결금속 주식회사 ,  현대자동차주식회사

Inventor： 최재권 ,  김규환 ,  박종관 ,  구원석

IPC: B22F3/12 ,  B22F7/02 ,  B22F3/24 ,  C22C33/02

Abstract: PURPOSE: A method for manufacturing a valve seat for a gas fuel car is provided to improve wear resistance by adding Fe-Cr or Fe-Mo to form double carbide or intermetallic compounds. CONSTITUTION: A method for manufacturing a valve seat for a gas fuel car comprises the steps of: molding a material which is mainly composed of Fe and includes C of 0.8-1.2wt.%, Ni of 1.0-3.0wt.%, Co of 7.0-10.0wt.%, Cr of 4.5-7.5wt.%, Mo of 8.0-11.0wt.%, Mn of 1.5-3.0wt.%, and Ca of 0.1-0.5wt.% at a pressure of 6-9ton/cm^2, sintering the molded body in a nitrogen atmosphere at a temperature of 1,130-1,160°C for 30-90 minutes, placing a copper infiltration material on the sintered body and implementing second sintering at a temperature of 1110-1130°C for 20-40 minutes, maintaining the infiltrated sintered body at a temperature of 880-930°C for 60 minutes and oil-cooling the sintered body, and heat-treating the cooled sintered body at 550°C for 120 minutes.

Abstract translation: 目的：提供一种用于制造气体燃料汽车的阀座的方法，通过添加Fe-Cr或Fe-Mo以形成双重碳化物或金属间化合物来改善耐磨性。 构成：一种用于制造气体燃料汽车的阀座的方法包括以下步骤：对主要由Fe组成的材料进行成型，其中C为0.8-1.2重量％，Ni为1.0-3.0重量％，Co为 7.0-10.0重量％，Cr为4.5-7.5重量％，Mo为8.0-11.0重量％，Mn为1.5-3.0重量％，Ca为0.1-0.5重量％，压力为6-9ton / cm 2，在氮气气氛中在1130-1160℃的温度下烧结成型体30-90分钟，将铜浸渗材料置于烧结体上，并在1110-1130℃的温度下进行第二次烧结 保持20-40分钟，将渗透的烧结体保持在880-930℃的温度下60分钟，并对烧结体进行油冷却，并将该冷却的烧结体在550℃下热处理120分钟。