-
公开(公告)号：KR1020040107158A
公开(公告)日：2004-12-20
申请号：KR1020030038049
申请日：2003-06-12
Applicant: 주식회사 세아창원특수강 , 철강융합신기술연구조합 , 재단법인 포항산업과학연구원 , 주식회사 포스코
IPC: C22C38/00
Abstract: PURPOSE: To provide a Fe-Ni-Co base Kovar alloy having low thermal expansion capable of improving hot workability and microstructure stability by adding a trace of boron(B) to the alloy. CONSTITUTION: The Fe-Ni-Co base alloy having low thermal expansion contains 28 to 30 wt.% of nickel(Ni), 15.5 to 18.5 wt.% of cobalt(Co), 0.05 to 0.5 wt.% of silicon(Si), 0.1 to 0.5 wt.% of manganese(Mn), and impurities of 0.006 wt.% or less of phosphorus(P), 0.05 wt.% or less of carbon(C), 0.15 wt.% or less of chromium(Cr), 0.10 wt.% or less of aluminum(Al), 0.4 wt.% or less of molybdenum(Mo) and 0.01 wt.% or less of sulfur(S), wherein the Fe-Ni-Co base alloy additionally contains 0.001 to 0.006 wt.% of boron(B).
Abstract translation: 目的：提供具有低热膨胀性能的Fe-Ni-Co基Kovar合金，其能够通过向合金中加入痕量的硼（B）来改善热加工性和微结构稳定性。 构成：热膨胀率低的Fe-Ni-Co系合金含有镍（Ni）28〜30重量％，钴（Co）15.5〜18.5重量％，硅（Si）0.05〜0.5重量％ ，0.1〜0.5重量％的锰（Mn），0.006重量％以下的磷（P），0.05重量％以下的碳（C），0.15重量％以下的铬（Cr ），0.10重量％以下的铝（Al），0.4重量％以下的钼（Mo）和0.01重量％以下的硫（S），其中Fe-Ni-Co基合金另外含有0.001 至0.006重量％的硼（B）。
-
公开(公告)号：KR100457235B1
公开(公告)日：2004-11-16
申请号：KR1020010065153
申请日：2001-10-22
Applicant: 재단법인 포항산업과학연구원 , 철강융합신기술연구조합 , 주식회사 세아창원특수강 , 주식회사 포스코
IPC: B22D7/10
Abstract: PURPOSE: A casting method of large stainless steel ingot is provided to reduce casting defects inside the steel ingot considering solidification characteristics of the stainless steel ingot during the solidification process of the steel ingot after injecting molten steel into a steel ingot mold. CONSTITUTION: The casting method of large stainless steel ingot (2) comprises the processes of manufacturing a mixed heat generating and reserving material (8) by mixing metal aluminum powder that is a heat generating source with porous thermal insulating material (9) as a heat generating and reserving material supplied onto the surface of a steel ingot hot-top (3) after filling molten steel into mold when casting a large stainless steel ingot; coating the manufactured mixed heat generating and reserving material on the surface of the molten steel filled into the mold (1); coating the porous thermal insulating material (9) on the mixed heat generating and reserving material; coating the mixed heat generating and reserving material (8) on the porous thermal insulating material; and coating the porous thermal insulating material on the mixed heat generating and reserving material again so that heat generating and reserving effects of the mixed heat generating and reserving material are extended.
Abstract translation: 目的：考虑到钢锭在将钢水注入钢锭模后凝固过程中不锈钢锭的凝固特性，提供了一种大型不锈钢锭的铸造方法，以减少钢锭内部的铸造缺陷。 构成：大型不锈钢锭（2）的铸造方法包括通过将作为发热源的金属铝粉与多孔绝热材料（9）混合作为热量来制造混合发热和储存材料（8）的过程 当铸造大型不锈钢锭时，在将钢水充入铸模之后，产生并储存供应到钢锭热顶部（3）的表面上的材料; 将所制造的混合发热保存材料涂覆在填充到模具（1）中的钢水表面上; 将多孔绝热材料（9）涂覆在混合发热和储存材料上; 将混合发热保存材料（8）涂布在多孔绝热材料上; 再将多孔绝热材料涂布在混合发热保存材料上，使混合发热保存材料的发热保存效果延长。
-
公开(公告)号：KR1020010055784A
公开(公告)日：2001-07-04
申请号：KR1019990057094
申请日：1999-12-13
Applicant: 재단법인 포항산업과학연구원 , 철강융합신기술연구조합
IPC: B22D7/00
Abstract: PURPOSE: A method for casting a large scale steel ingot is provided to obtain a casting product of a large scale steel ingot having a target quality by applying a hot top to the large scale steel ingot and an insulating band to the upper part of the ingot, or a chill block or cooling apparatus to the lower part of a mold so as to control the solidification model inside the large scale steel ingot. CONSTITUTION: The method for casting a large scale steel ingot comprises the process of controlling a solidification model during solidification of a steel ingot by installing an insulating band (10) manufactured of a material having a heat conductivity of 1 W/m°K or less at the feeder part (2) and the upper part of a mold (1), thereby reducing casting defects. The method comprises the process of controlling a solidification model during solidification of a steel ingot by installing a chill block (20) manufactured of a material having a heat conductivity of 40 to 400 W/m°K at the lower part of a mold, thereby reducing casting defects. The method comprises the process of controlling a solidification model during solidification of a steel ingot by installing an insulating band manufactured of a material having a heat conductivity of 1 W/m°K or less at the feeder part and the upper part of a mold and installing a chill block manufactured of a material having a heat conductivity of 40 to 400 W/m°K at the lower part of a mold, thereby reducing casting defects.
Abstract translation: 目的：提供一种用于铸造大型钢锭的方法，以通过向大型钢锭施加热顶和将绝热带施加到锭的上部来获得具有目标质量的大型钢锭的铸造产品 ，或冷却装置或冷却装置到模具的下部，以便控制大型钢锭内的凝固模型。 构成：用于铸造大型钢锭的方法包括通过安装由导热率为1W / m°K以下的材料制成的绝缘带（10）来控制钢锭凝固期间的凝固模型的过程 在进料器部分（2）和模具（1）的上部，从而减少铸造缺陷。 该方法包括通过在模具的下部安装由导热率为40〜400W / m·K的材料制成的冷却块（20），在钢锭固化期间控制凝固模型的工序，由此 减少铸造缺陷。 该方法包括在钢锭固化期间通过在模具的进料部分和上部安装导热率为1W / m·K以下的材料制造的绝缘带来控制钢锭的凝固过程， 在模具的下部安装由导热率为40〜400W / m·K的材料制成的冷却块，从而减少铸造缺陷。
-
公开(公告)号：KR100525840B1
公开(公告)日：2005-11-02
申请号：KR1020030038049
申请日：2003-06-12
Applicant: 주식회사 세아창원특수강 , 철강융합신기술연구조합 , 재단법인 포항산업과학연구원 , 주식회사 포스코
IPC: C22C38/00
Abstract: 개시된 본 발명은 미량의 붕소(B)를 첨가한 Fe-Ni-Co계 저열팽창성 코바 합금에 관한 것으로, 불순물 원소의 결정립계로의 편석을 저지하는 동시에 이들 원소와의 붕화물을 형성하고 결정립계 및 다른 결함부에 우선적으로 응집하여 결정의 핵이 되며, 결정립을 미세화시키고 입계 취화를 방지하여 합금의 열간 가공성과 함께 미세조직 안정성을 향상시키기 위한 것이다.
이를 위하여 본 발명은 니켈 28∼30 중량%와 코발트 15.5 ~ 18.5 중량%를 기본으로 하여; 0.05 ~ 0.5 중량%의 규소(Si)와 0.1 ~ 0.5 중량%의 망간(Mn)을 함유하고; 불순물로서 0.006% 이하의 인, 0.05 중량% 이하의 탄소, 0.15 중량% 이하의 크롬, 0.10 중량% 이하의 알루미늄, 0.4 중량% 이하의 몰리브덴을 함유하며, 특히 0.01 중량% 이하의 황을 함유하며; 0.001∼0.006 중량%의 붕소를 함유하는 Fe-Ni-Co계 저열팽창성 합금을 제공함으로써, 열팽창 특성을 저하시키지 않고 열간 가공성을 개선할 수 있어 상기 코바 합금의 제조시 표면 결함을 줄일 수 있고 합금에서 중요하게 요구되는 미세조직의 안정성도 향상시키는 이점을 얻을 수 있게 한다.-
公开(公告)号：KR1020030033397A
公开(公告)日：2003-05-01
申请号：KR1020010065153
申请日：2001-10-22
Applicant: 재단법인 포항산업과학연구원 , 철강융합신기술연구조합 , 주식회사 세아창원특수강 , 주식회사 포스코
IPC: B22D7/10
Abstract: PURPOSE: A casting method of large stainless steel ingot is provided to reduce casting defects inside the steel ingot considering solidification characteristics of the stainless steel ingot during the solidification process of the steel ingot after injecting molten steel into a steel ingot mold. CONSTITUTION: The casting method of large stainless steel ingot (2) comprises the processes of manufacturing a mixed heat generating and reserving material (8) by mixing metal aluminum powder that is a heat generating source with porous thermal insulating material (9) as a heat generating and reserving material supplied onto the surface of a steel ingot hot-top (3) after filling molten steel into mold when casting a large stainless steel ingot; coating the manufactured mixed heat generating and reserving material on the surface of the molten steel filled into the mold (1); coating the porous thermal insulating material (9) on the mixed heat generating and reserving material; coating the mixed heat generating and reserving material (8) on the porous thermal insulating material; and coating the porous thermal insulating material on the mixed heat generating and reserving material again so that heat generating and reserving effects of the mixed heat generating and reserving material are extended.
Abstract translation: 目的：提供大型不锈钢锭的铸造方法，以考虑钢锭在将钢水注入钢锭模具后的钢锭凝固过程中不锈钢锭的凝固特性，以减少钢锭内的铸造缺陷。 构成：大型不锈钢锭（2）的铸造方法包括通过将作为发热源的金属铝粉末与多孔绝热材料（9）作为热量混合制造混合发热和储存材料（8）的工艺 在铸造大型不锈钢锭时，将钢水填充到模具中之后，生成和储存供应到钢锭热顶（3）表面的材料; 将制造的混合发热和储存材料涂覆在填充到模具（1）中的钢水表面上; 在混合发热和储存材料上涂覆多孔绝热材料（9）; 将混合的发热和储存材料（8）涂覆在多孔绝热材料上; 并且再次在混合发热和储存材料上涂覆多孔绝热材料，从而延长了混合发热和储存材料的发热和储存效果。
-
Patent Agency Ranking
公开(公告)号：KR100347561B1
公开(公告)日：2002-08-07
申请号：KR1019990057094
申请日：1999-12-13
Applicant: 재단법인 포항산업과학연구원 , 철강융합신기술연구조합
IPC: B22D7/00
Abstract: 본발명은대형강괴를주조하는공정에있어서주조결함으로발생하는수축공, 응고균열, 기공등 주형내에부적합한응고조건에의해발생하는응고결함의발생을방지하여건전한대형강괴를주조하도록하는대형강괴의주조방법에관한것으로, 압탕부와몰드의상단부에열전도도가 1 W/mK 이하인재질로제작한단열띠를설치하거나, 몰드하단부에열전도도가 40~400 W/mK 인재질로제작한냉금을설치하거나, 또는이들양자를설치하여강괴의응고동안의응고모델을조절하여주조결함을저감시키도록하는것을특징으로한다.
-
公开(公告)号：KR1020090066886A
公开(公告)日：2009-06-24
申请号：KR1020070134628
申请日：2007-12-20
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원 , 철강융합신기술연구조합 , 주식회사 세아창원특수강
Abstract: A method for reinforcing of a sink head is provided to strength function of a sink head by using heat keeping and heat supplying effect and installing a diaphragm on the top of a mold. A method for reinforcing of a sink head includes a diaphragm(11) capable of blocking ascending air current around a mold, installed on an outer wall of the mold(1). The diaphragm blocking the ascending air current is set up on the height of 50 ~ 95% of mold height. A shape, size and number of the diaphragm are controlled freely.
Abstract translation: 通过使用保温和供热效果并在模具的顶部安装隔膜来提供用于增强水槽头的方法来提高水槽头的功能。 一种用于加强水槽头的方法包括：隔膜（11），其能够阻挡安装在模具（1）的外壁上的模具周围的上升气流。 阻塞上升气流的隔膜设置在模具高度的50〜95％的高度。 隔膜的形状，尺寸和数量可自由控制。
-
公开(公告)号：KR100405515B1
公开(公告)日：2003-11-14
申请号：KR1020000080526
申请日：2000-12-22
Applicant: 재단법인 포항산업과학연구원 , 철강융합신기술연구조합
IPC: B22D23/00
Abstract: 본 발명은 보조 주형을 이용한 강괴 주조방법에 관한 것으로서,
주형(10)에 용강을 주입하고 응고시켜 강괴를 주조하는 방법에 있어서, 상기 주형(10)내에 단열성이 우수한 내화물질로 구성된 보조 주형(20)을 안착시키는 단계와; 상기 보조 주형(20)에 용강을 충진시키는 단계와; 상기 보조 주형(20)에 용강의 충진이 완료된 후 상기 보조 주형(20)을 주형(10)내에서 들어올리면서 제거하여 보조 주형(20)내에 있던 균일한 온도의 용강을 주형(10)내에 충진시키는 단계와; 용강을 상기 주형(10)으로 추가 공급하여 주형(10)내의 잔여 공간을 충진시키는 단계를 포함하여 구성되는 것을 특징으로 하며,
주조결함으로 인한 수축공, 응고균열, 기공 등 강괴 내부의 부적합한 응고조건에 의해 발생하는 응고결함을 방지하여 내부 건전성이 우수한 강괴를 주조할 수 있도록 해주는 효과를 제공한다.Abstract translation: 目的：使用辅助模具铸造钢锭的方法，通过将具有优异绝热性的辅助模具安装到钢锭模具中，将具有较小铸造缺陷的铸锭铸造，从而将具有均匀温度分布的钢水浇注到模具中 很短的时间。 构成：在通过将钢水注入模具（10）并固化钢水来铸造钢锭的方法中，使用辅助模具铸造钢锭的方法包括以下步骤：将由耐火材料构成的辅助模具（20） 具有优异绝热性能的模具（10）的材料; 将钢水浇注到辅助模具（20）中; 当浇注时将辅助模具（20）从模具（10）的内部移出时，通过移除辅助模具（20），将辅助模具（20）中具有均匀温度的钢水在短时间内倒入模具（10） 的钢水完成辅助模具（20）; 以及通过向所述模具（10）中另外供应钢水来填充所述模具（10）中的剩余空间，其中所述辅助模具（20）的内部容积被设计为所述铸造完成的总钢的20％至90％的范围 锭块体积。
-
公开(公告)号：KR1020020051466A
公开(公告)日：2002-06-29
申请号：KR1020000080526
申请日：2000-12-22
Applicant: 재단법인 포항산업과학연구원 , 철강융합신기술연구조합
IPC: B22D23/00
Abstract: PURPOSE: A method for casting steel ingots using an auxiliary mold is provided to cast steel ingots having less casting defects by installing the auxiliary mold having superior adiabatic property into a steel ingot mold, thereby pouring molten steel with uniformed temperature distribution into the mold for a short period of time. CONSTITUTION: In a method for casting steel ingots by injecting molten steel into a mold(10) and solidifying the molten steel, the method for casting steel ingots using an auxiliary mold comprises the steps of resting an auxiliary mold(20) consisted of a refractory material with superior adiabatic property into the mold(10); pouring molten steel into the auxiliary mold(20); pouring molten steel having uniformed temperature in the auxiliary mold(20) into the mold(10) in a short time by removing the auxiliary mold(20) as lifting the auxiliary mold(20) from the inside of the mold(10) when pouring of molten steel into the auxiliary mold(20) is completed; and filling the remaining space in the mold(10) by additionally supplying molten steel into the mold(10), wherein an inner volume of the auxiliary mold(20) is designed to the range of 20 to 90% of the casting completed total steel ingot volume.
Abstract translation: 目的：使用辅助模具铸造钢锭的方法，通过将具有优异绝热性的辅助模具安装到钢锭模具中，将具有较小铸造缺陷的铸锭铸造，从而将具有均匀温度分布的钢水浇注到模具中 很短的时间。 构成：在通过将钢水注入模具（10）并固化钢水来铸造钢锭的方法中，使用辅助模具铸造钢锭的方法包括以下步骤：将由耐火材料构成的辅助模具（20） 具有优异绝热性能的模具（10）的材料; 将钢水浇注到辅助模具（20）中; 当浇注时将辅助模具（20）从模具（10）的内部移出时，通过移除辅助模具（20），将辅助模具（20）中具有均匀温度的钢水在短时间内倒入模具（10） 的钢水完成辅助模具（20）; 以及通过向所述模具（10）中另外供应钢水来填充所述模具（10）中的剩余空间，其中所述辅助模具（20）的内部容积被设计为所述铸造完成的总钢的20％至90％的范围 锭块体积。
-
公开(公告)号：KR1020110076572A
公开(公告)日：2011-07-06
申请号：KR1020090133317
申请日：2009-12-29
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원 , 철강융합신기술연구조합 , 주식회사 세아창원특수강
CPC classification number: C21D6/004 , C21D1/26 , C21D6/005 , C21D6/008 , C22C38/42 , C22C38/44 , C22C38/54 , C22C38/58
Abstract: PURPOSE: A super high strength and high corrosion resistant stainless steel alloy and a manufacturing method thereof are provided to ensure high strength of over 156kg/mm^2 by changing a structure and mechanical properties depending on added elements, a forging condition and a heat treatment condition. CONSTITUTION: Stainless alloy steel ingot consists of 0.001-0.1% of C, 10-25% of Cr, 5-20% of Ni, 0.1-5% of Al, 0.1-5% of Si, 0.1-5% of Mn, 0.1-5% of Mo, 0.01-3% of B, 0.1-5% of Cu, Fe and other inevitable impurities. The stainless alloy steel ingot consists of one or more of one of 0.01-5% of W, 0.01-5% of V, 0.01-5% of Ti and 0.01-5% of Nb. The steel ingot is hot-plasticized, is homogenized at a temperature of 900-1150°C, is solution-treated at a temperature of 700-1000°C and is precipitation-hardened at a temperature of 500-600°C.
Abstract translation: 目的：提供超高强度，高耐蚀不锈钢合金及其制造方法，通过根据添加元素，锻造条件和热处理改变结构和机械性能，确保超过156kg / mm ^ 2的高强度 条件。 构成：不锈钢合金钢锭由C：0.001-0.1％，Cr：10-25％，Ni：5-20％，Al：0.1-5％，Si：0.1-5％，Mn：0.1-5％ Mo的0.1-5％，B的0.01-3％，Cu，Fe等不可避免的杂质为0.1-5％。 不锈钢合金钢锭由W的0.01-5％，V的0.01-5％，Ti的0.01-5％，Nb的0.01-5％组成。 将钢锭热塑化，在900-1150℃的温度下均化，在700-1000℃的温度下进行溶液处理，并在500-600℃的温度下进行沉淀硬化。
-
-
-
-
-
-
-
-
-
Search Results
228
records
(took 0.024 seconds)
