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    • 3. 发明公开
    • 철-니켈-코발트계 저열팽창성 합금
    • 具有低热膨胀的Fe-Ni-Co基合金,具有防止在高温工作期间产生的表面缺陷的硼原子,如锻造和热轧
    • KR1020040107158A
    • 2004-12-20
    • KR1020030038049
    • 2003-06-12
    • 주식회사 세아창원특수강철강융합신기술연구조합재단법인 포항산업과학연구원주식회사 포스코
    • 이기안박종혁김문철조봉현남궁정
    • C22C38/00
    • 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).
    • 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)。
    • 4. 发明授权
    • 대형 스텐레스 강괴 주조방법
    • 대형스텐레스강괴주조방법
    • KR100457235B1
    • 2004-11-16
    • KR1020010065153
    • 2001-10-22
    • 재단법인 포항산업과학연구원철강융합신기술연구조합주식회사 세아창원특수강주식회사 포스코
    • 남궁정김문철
    • B22D7/10
    • 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.
    • 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。
    • 5. 发明授权
    • 연속 주조 주형의 경사기능 폭발 용사코팅방법
    • 喷涂模具喷涂方法
    • KR100250217B1
    • 2000-04-01
    • KR1019950055010
    • 1995-12-22
    • 주식회사 포스코재단법인 포항산업과학연구원
    • 김문철김선복도병무
    • C23C4/08
    • PURPOSE: A method is provided to form a coating layer which can be used in a copper alloy mold of precipitation hardening type and solid solution hardening type, and has superior heat resistance and abrasion resistance by coating an inclination functional coat controlling constituents of a coating layer in a detonation spraying coating method of a continuous casting mold, thereby improving heat impact and cohesion strength inside the coating layer and omitting the fusing process. CONSTITUTION: In a method for forming a spray coating in which metallic powder is sprayed on the surface of the material by a detonation gun, the inclination functional detonation spray coating method of a continuous casting mold comprises the process of forming a coating layer of which constituents have slopes by alternately spray coating the same constituents as the continuous casting mold, that is, copper alloy powder, nickel and chromium alloy powder on the surface of a copper alloy continuous casting mold using a detonation gun equipped with two powder supplying devices.
    • 目的:提供一种形成可用于沉淀硬化型和固溶硬化型铜合金模的涂层的方法,通过涂覆控制涂层成分的倾斜功能涂层,具有优异的耐热性和耐磨性 在连续铸造模具的引爆喷涂方法中,由此提高涂层内的热冲击和内聚强度,省略熔融过程。 构成:在形成喷射涂层的方法中,其中金属粉末通过爆震枪喷涂在材料的表面上,连续铸模的倾斜功能爆轰喷涂方法包括形成涂层的方法,其中组分 通过使用配备有两个粉末供给装置的爆震枪,在铜合金连续铸造模具的表面上交替地喷涂与连续铸造模具相同的组分,即铜合金粉末,镍和铬合金粉末。