KR960010886A - Method for manufacturing piston material for excavator - Google Patents
Method for manufacturing piston material for excavator Download PDFInfo
- Publication number
- KR960010886A KR960010886A KR1019940022224A KR19940022224A KR960010886A KR 960010886 A KR960010886 A KR 960010886A KR 1019940022224 A KR1019940022224 A KR 1019940022224A KR 19940022224 A KR19940022224 A KR 19940022224A KR 960010886 A KR960010886 A KR 960010886A
- Authority
- KR
- South Korea
- Prior art keywords
- minutes
- temperature
- alloy steel
- piston material
- excavator
- Prior art date
Links
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- Heat Treatment Of Articles (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
본 발명에 따른 제조방법은 니켈-크롬-몰리브덴(Ni-Cr-Mo) 합금강 또는 니켈-크롬-몰리브덴 함금강에 바나듐, 니오비움 원소가 첨가된 합금강 소재의 강을 분위기가스하에서 잔류하는 오스테나이트를 마르텐사이트화 시켜표텬경화의 목적을 달성하고 우수한 기계적 성질을 부여할 수 있으며, 특수한 부위기 가스내에서 예열 침탄 및 서브제도 처리를 수행하여 내부응력 제거가 충분하여 열처리도중 소재에 크랙의 발생율이 현저하게 감소되는 우수한 효과가 있다.The production method according to the present invention is an austenite in which a nickel-chromium-molybdenum (Ni-Cr-Mo) alloy steel or an alloy steel material in which vanadium and niobium elements are added to a nickel-chromium-molybdenum alloy steel is added under atmospheric gas. Martensite can achieve the purpose of surface hardening and impart excellent mechanical properties, and preheat carburization and sub drawing treatment are performed in special site gas so that internal stress removal is sufficient. There is an excellent effect that is reduced.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 본 발명에 따른 제조방법의 공정도.1 is a process chart of the manufacturing method according to the present invention.
제2도는 본 발명에 따른 제조방법의 그래프로서, (a)는 침탄 및 소입 열처리 공정 그래프이고, (b)는 서브제로 처리 및 소려공정 그래프이다.2 is a graph of the manufacturing method according to the present invention, (a) is a carburizing and hardening heat treatment process graph, (b) is a sub-zero treatment and soaking process graph.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940022224A KR960010886A (en) | 1994-09-05 | 1994-09-05 | Method for manufacturing piston material for excavator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940022224A KR960010886A (en) | 1994-09-05 | 1994-09-05 | Method for manufacturing piston material for excavator |
Publications (1)
Publication Number | Publication Date |
---|---|
KR960010886A true KR960010886A (en) | 1996-04-20 |
Family
ID=66686960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940022224A KR960010886A (en) | 1994-09-05 | 1994-09-05 | Method for manufacturing piston material for excavator |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR960010886A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010073890A (en) * | 2000-01-22 | 2001-08-03 | 남철우 | Method of the hardening heattreatment by shock quenching in cooling liquid with low degree |
KR20020080600A (en) * | 2001-04-16 | 2002-10-26 | 현대중공업 주식회사 | Carburizing Process of Roller Chain Components for Driving the Marine Diesel Engine |
KR101386030B1 (en) * | 2012-07-09 | 2014-04-16 | 한국생산기술연구원 | Mold surface caburizing method |
-
1994
- 1994-09-05 KR KR1019940022224A patent/KR960010886A/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010073890A (en) * | 2000-01-22 | 2001-08-03 | 남철우 | Method of the hardening heattreatment by shock quenching in cooling liquid with low degree |
KR20020080600A (en) * | 2001-04-16 | 2002-10-26 | 현대중공업 주식회사 | Carburizing Process of Roller Chain Components for Driving the Marine Diesel Engine |
KR101386030B1 (en) * | 2012-07-09 | 2014-04-16 | 한국생산기술연구원 | Mold surface caburizing method |
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Legal Events
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |