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Применить Всего найдено 5. Отображено 5.
23-01-2018 дата публикации

REDUCING AGENT DECREASING METHOD IN STAINLESS STEEL REFINING

Номер: KR101821366B1
Автор: SEOK, MIN OH, CHA, IN SUNG, SUNG, HA CHUL, KIM, GONG YOUNG
Принадлежит: POSCO

Disclosed is a reducing agent decreasing method for promoting reduction while reducing an amount of a reducing agent by inputting a carbon-containing composite material into slag containing valuable metal in a stainless steel refining process. According to one embodiment of the present invention, the reducing agent decreasing method in refining stainless steel: includes a decarburization step of removing carbon by taking oxygen; and a reduction step of inputting a reducing agent so as to reduce the valuable metal, wherein the carbon-containing composite material is inputted before the reducing agent is inputted. COPYRIGHT KIPO 2018 (AA) FeSi reduction (BB) Reducing agent (FeSi) (CC) Reduce Cr_2O_3 using FeSi (DD) C reduction (EE) C containing agent (FF) Reduce Cr_2O_3 using C inside the C containing agent (GG) Refractory (MgO-C) ...

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Номер записи: 1
24-01-2018 дата публикации

METHOD FOR PREVENTING POWDERING PHENOMENON OF STAINLESS ELECTRIC FURNACE SLAG

Номер: KR101821363B1
Автор: SEOK, MIN OH, SUNG, HA CHUL
Принадлежит: POSCO

The present invention relates to a method for preventing a powdering phenomenon of stainless electric furnace slag which changes a slag composition to prevent a powdering phenomenon due to volume expansion in a cooling process of the slag, or induces solidification of the slag to prevent powdering phenomenon in a conventional slag composition. According to one embodiment of the present invention, the method for preventing a powdering phenomena of stainless electric furnace slag has MgO-SiO_2 slag in a decarburization step, has CaO-SiO_2 slag in the decarburization step, or is not putting reductant in a reduction step. COPYRIGHT KIPO 2018 (AA) Charge molten iron (BB) Step of decarbonizing (CC) Additive (MgO, MgO-C base) feed oxygen blowing (DD) Reduction step (EE) Reduction agent (Al, FeSi) + fluorocarbon additive reduced Ar stirring (FF) Discharging the molten iron ...

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Номер записи: 2
31-01-2017 дата публикации

과수 피해 방지 보호캡

Номер: KR0101700824B1
Автор: 성하철, 이승희
Принадлежит: 전남대학교산학협력단

... 본 발명에 의한 과수 피해 방지 보호캡은 과수를 보호함에 있어서, 나무에 매달린 과수에 과수를 수용하여 감싸는 덮개와 덮개의 일부를 덮는 절개부 덮개가 장착된다. 본 발명의 의한 과수 피해 방지 보호캡을 이용하면, 간편하게 과수에 장착할 수 있어 그에 따른 작업 시간을 대폭 줄일 수 있고, 과수의 성장에 따라 덮개를 교체 할 필요가 없으므로 불필요한 노동력을 감소할 수 있으며, 교체과정 중 중에서 발생되는 과수표면 손상을 줄일 수 있어 과수의 상품성을 극대화 시킬 수 있는 장점이 있다.

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Номер записи: 3
25-05-2017 дата публикации

METHOD FOR REFINING STAINLESS STEEL IN CONVERTER WITH DECREASING CORROSION OF REFRACTORY IN CONVERTER

Номер: KR101739277B1
Автор: SEOK, MIN OH, CHA, IN SUNG, SUNG, HA CHUL
Принадлежит: POSCO

Disclosed is a method for refining stainless steel in a converter with decreasing corrosion of a refractory in the converter. According to an embodiment of the present invention, the method for refining stainless steel in the converter comprises: a step of charging molten iron to the converter; a decarbonizing step; and a reducing step. Moreover, slag formed in the decarbonizing step is MgO-SiO_2-based slag. Therefore, the MgO-SiO_2-based slag is generated to reduce a slag amount, and an elution amount of a refractory can be reduced. An input of a base material is reduced for production costs to be reduced. COPYRIGHT KIPO 2017 (10) Charging molten iron (25) Decarbonizing step (injecting MgO and MgO-C as sub-materials) (30) Reducing step (40) Tapping the steel ...

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Номер записи: 4
19-09-2016 дата публикации

PROTECTIVE CAP FOR FRUIT DAMAGE PREVENTION

Номер: KR1020160107783A
Автор: SUNG, HA CHEOL, LEE, SEUNG HEE
Принадлежит:

A protective cap for fruit damage prevention according to the present invention protects fruit, and a cover accommodating and surrounding the fruit and a cutting portion cover covering a part of the cover are mounted on the fruit hanging on a tree. When the protective cap for fruit damage prevention according to the present invention is used, the mounting can be performed with convenience, and thus the work can be carried out within a significantly reduced period of time. In addition, the cover does not have to be replaced during the course of fruit growth, and thus labor force can be saved. Furthermore, damage to fruit surfaces occurring during the course of replacement can be reduced, and thus the marketability of the fruit can be maximized. COPYRIGHT KIPO 2016 ...

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Номер записи: 5