子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | 사형 주조용 주형 및 이의 건식 제조방법 | KR1020150088660 | 2015-06-22 | KR101772027B1 | 2017-08-28 | 정연길; 김은희; 이재현; 조근호 |
| 본발명은사형주조용주형및 그제조방법에관한것으로서, 주물사입자와무기바인더전구체를혼합하여혼합용액을제조하는제 1 단계; 혼합용액을건조시켜무기바인더전구체가코팅된주물사입자를제조하는제 2 단계; 코팅된주물사입자를건조시키는제 3 단계; 무기바인더가코팅된주물사입자와유기바인더를혼합하는제 4 단계; 주물사입자와유기바인더의혼합물을건조시켜성형체를제조하는제 5 단계; 및성형체를열처리하는제 6 단계;를포함하는사형주조용주형및 제조방법을제공한다. | ||||||
| 62 | 황산바륨을 함유하는 몰딩 재료 혼합물 | KR1020157000280 | 2013-06-06 | KR1020150024885A | 2015-03-09 | 데터스,하인쯔; 쾨르쉬겐,요륵; 오버라이터,마틴 |
| 본 발명은 개선된 캐스트 표면을 갖는 캐스트 피스, 특히 알루미늄 캐스트 피스를 수득하기 위해 주조 산업에서 캐스팅 몰드 및 코어를 제조하기 위한, 내화성 기초 몰딩 재료 및 물유리계 결합제와 조합하여 황산바륨을 함유하는 몰딩 재료 혼합물에 관한 것이다. | ||||||
| 63 | 주물용 중자 조성물 및 이를 이용한 주물용 중자의 제조방법 | KR1020130100841 | 2013-08-26 | KR1020150023996A | 2015-03-06 | 하석; 강동우; 윤경호; 윤종주; 조시현 |
| 본 발명은 주물용 중자 조성물 및 이를 이용한 주물용 중자의 제조방법에 관한 것으로, 보다 상세하게는 주물사; 물유리계 점결제와 산화피막 억제제로 구성된 중자용 점결제; 및 탈사용 첨가제; 를 포함하며, 유해가스 배출 없이 탈사성이 향상된 주물용 중자 조성물 및 이를 이용한 주물용 중자의 제조방법에 관한 것이다.
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| 64 | 주물사의 열적 재생방법 | KR1020097018716 | 2008-02-19 | KR1020090113877A | 2009-11-02 | 코흐,디터; 뮐러,옌스; 프론,마쿠스 |
| The invention relates to a method for regenerating used foundry sand, which is contaminated with soluble glass, wherein: used foundry sand is provided, which is tainted with a binding agent made of the soluble glass, to which a particle-shaped metal oxide is added; and the used foundry sand is subjected to a thermal treatment, wherein the foundry sand is heated to a temperature of at least 200°C, thereby obtaining regenerated foundry sand. The invention further relates to regenerated foundry sand, as that obtained from using the method. | ||||||
| 65 | 주조용 용해성 코어의 제조방법과 코어 및 그 코어의추출방법 | KR1020000043143 | 2000-07-26 | KR1020020009334A | 2002-02-01 | 히로카와코지 |
| PURPOSE: A method for manufacturing a fusible core for casting, the core, and a method for extracting the core are provided to develop a technology for simply manufacturing a complicated shaped core and manufacturing a recyclable fusible core for casting to solve existing problems including frequent generation of cracks due to shrinkage and handling difficulties due to fragility. CONSTITUTION: The method for manufacturing a fusible core for casting comprises the processes of solid dissolving a salt having a higher fusion point than a temperature of a casting material into a water soluble salt having a lower fusion point than the casting material in supersaturation; and slowly solidifying the core after injecting the supersaturated solid dissolved salt material into a core mold frame so that a solidified layer having a high concentration of the salt having a higher fusion point is formed at the contour part of the core to be solidified while the remaining part of the core is formed of the salt having a lower fusion point than the casting material, wherein the core is manufactured by solidifying the materials after injecting the dispersed materials into a mold in the state that heat resistant rigid powder is uniformly dispersed on the supersaturated water soluble salt, an inorganic material which is not chemically reacted with the salt is used as the heat resistant rigid powder, the heat resistant rigid powder and the fine powder of the water soluble salt having a higher fusion point than the casting material which is dispersed on the supersaturated water soluble salt are dispersed in an amount of 5 to 60 wt.%, based on the total content, the core material of water soluble salt having a lower fusion point is KNO3, KNO2 or NaNO2, and the core material of salt having a higher fusion point is NaCl, KCl, MgCl2, CaCl2 or Na2SO4. | ||||||
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