KR20040004719A - Method for producing a light-alloy bearing bush with a rough external surface - Google Patents
Method for producing a light-alloy bearing bush with a rough external surface Download PDFInfo
- Publication number
- KR20040004719A KR20040004719A KR10-2003-7016762A KR20037016762A KR20040004719A KR 20040004719 A KR20040004719 A KR 20040004719A KR 20037016762 A KR20037016762 A KR 20037016762A KR 20040004719 A KR20040004719 A KR 20040004719A
- Authority
- KR
- South Korea
- Prior art keywords
- bearing bush
- mold
- particles
- light
- alloy bearing
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0081—Casting in, on, or around objects which form part of the product pretreatment of the insert, e.g. for enhancing the bonding between insert and surrounding cast metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/001—Removing cores
- B22D29/002—Removing cores by leaching, washing or dissolving
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
본 발명의 목적은 거친 외부 표면을 가지는 경합금 베어링 부시를 제조하는 것이다. 이것을 달성하기 위해서는 뒤에 용융금속에 의하여 부분적으로 둘러싸여지는 입자들이 주형의 표면에 적용된다.It is an object of the present invention to produce a light alloy bearing bush having a rough outer surface. To achieve this, particles which are later partially surrounded by molten metal are applied to the surface of the mold.
베어링 부시가 주형으로부터 해체될 때, 상기 입자들은 상기한 부시내에 남아있게 되며 그리고 뒤에 기계적으로 또는 액체내에 용해되는 것에 의하여 베어링 부시의 예비성형체로부터 제거된다.When the bearing bush is dismantled from the mold, the particles remain in the bush and are subsequently removed from the preform of the bearing bush by dissolving mechanically or in liquid.
Description
본 발명과 같은 종류의 제조방법은 DE 199 58 185 호에 공지되어 있다. 거기에서는 베어링 부시의 주조시에 경합금 베어링 부시의 거친 표면은, 베어링 부시의 폼(foam)재료 주조모형이, 주조된 베어링 부시의 외부 표면에 상응하게 언더컷팅된 형상을 초래하는, 언더컷들을 가지는 외측의 입자층을 가지게 함으로써 로스트 폼(lost-foam)공법으로 제조된다. 이 베어링 부시의 거친 표면은 엔진블럭의 주조시에 베어링 부시와 주변 주조 재료 사이의 양호한 결합을 가져오기 위한 전제이다.Processes of the same kind as the invention are known from DE 199 58 185. There, the rough surface of the light alloy bearing bush at the time of casting of the bearing bush has an outer side with undercuts in which the foam material casting model of the bearing bush results in an undercut shape corresponding to the outer surface of the cast bearing bush. It is manufactured by the lost-foam method by having a particle layer of. The rough surface of this bearing bush is a premise to bring about a good coupling between the bearing bush and the surrounding casting material in the casting of the engine block.
본 발명은 거친 외부표면을 가진 내연기관용 경합금 베어링 부시(bush)의 제조방법에 관한 것이다.The present invention relates to a method of manufacturing a light alloy bearing bush for an internal combustion engine with a rough outer surface.
도 1 은 상부 범위에 거친 표면을 가지는 베어링 부시.1 shows a bearing bush having a rough surface in the upper range.
본 발명은 역시 칠 캐스팅 또는 샌드 캐스팅에서도 외부의 거친 표면을 가지는 베어링 부시의 제조를 가능하게 하는 문제를 기초로 한다.The present invention is also based on the problem of enabling the production of bearing bushes with external rough surfaces, even in chill casting or sand casting.
상기한 문제는 청구항 1 의 방법에 의하여 해결된다. 유리한 또 다른 구성들은 종속항들의 대상이다.The above problem is solved by the method of claim 1. Further advantageous arrangements are the subject of the dependent claims.
입자의 고정이라는 말은 입자들이 적어도 중력에 의해서 주형으로부터 분리되거나 또는 융체의 충진시에 위로 떠오르지 않는다는 것을 뜻한다. 다른 한편으로는 상기한 고정은 가능한 한, 부분적인 주변 주조된 입자들이 경합금 베어링 부시의 이형시에 문제없이 주형의, 특히 잉곳트 주형의 표면으로부터, 또는 잉곳트 주형에 대한 강판 삽입부로부터 분리되도록 다만 그렇게 약하게 선택해야 한다. 특히, 우선적으로는 주형내에서 입자의 고정은 일반적으로 샌드코아 또는 샌드몰드들의 제조에 사용되어지는 코아 결합제에 의하여 이루어진다.The fixation of particles means that the particles are not separated from the mold at least by gravity or do not rise up upon filling of the melt. On the other hand, the above-mentioned fixation allows the partial peripherally casted particles to be separated as far as possible from the surface of the mold, in particular the ingot mold, or from the steel sheet insert for the ingot mold, without problems in the release of the light alloy bearing bush. You should only choose so weakly. In particular, the fixation of the particles in the mold is achieved by means of core binders which are generally used for the production of sand cores or sand molds.
주형으로서는 역시 샌드몰드 또는 샌드로 된 첨가물들, 역시 분할된 샌드몰드들이 사용될 수 있다.As the mold, also sand molds or sand additives, also divided sand molds can be used.
0.3 mm 내지 1.5 mm의 범위에 있는 입자의 입도가 비표면적의 증대를 가져오며, 이것은 입자혼합물로 된 대단히 작은 언더컷들에 의하여 발생된 비표면적의 증대가 발생하는 것이 유리한 것으로 밝혀졌다.It has been found that the particle size of the particles in the range of 0.3 mm to 1.5 mm results in an increase in specific surface area, which advantageously results in an increase in specific surface area caused by very small undercuts of the particle mixture.
거친표면은 필수적으로 베어링 부시의 전체 표면에 걸쳐서 있을 필요는 없으며 부분 범위상에 제한 되어질 수 있다.The rough surface does not necessarily need to span the entire surface of the bearing bush and can be limited in part.
베어링 부시의 최대 직경은 거친 범위내에서 주형의 내부 직경 내지 주형 삽입물 위에 입자들이 올려져 있는 그러한 주형 삽입물의 내부직경에 의하여 정해져 있다. 각각의 입자에게는 주조시에 베어링 부시의 외부직경에 관하여 요홈으로서 내지 더 작은 직경의 장소로서 모양을 가지게 된다. 이 입자들은 베어링부시의 이형 후에는 외부직경으로부터 바로 들어갈 수 있으므로 이들은 용융체 내에서 용융되기 시작하거나 또는 기계적으로 예를 들면 샌드블라스팅에 의하여 베어링 부시로부터 제거되어질 수 있다. 용해된 입자의 대신에 베어링 부시의 예비성형체의 외부직경에는 요홈들이 남아있게 된다.The maximum diameter of the bearing bush is defined by the inner diameter of the mold within the rough range or by the inner diameter of such a mold insert on which the particles are placed on the mold insert. Each particle is shaped at the time of casting as a groove or a smaller diameter place with respect to the outer diameter of the bearing bush. These particles can enter directly from the outside diameter after release of the bearing bush so that they can begin to melt in the melt or can be removed from the bearing bush mechanically, for example by sandblasting. Instead of the dissolved particles, grooves remain in the outer diameter of the preform of the bearing bush.
상기 입자들은 이것이 역시 냉각만을 위한 소금코어들의 제조로부터 공지되어 있는 바와 같이 유리하게는 소금으로 되어있다.The particles are advantageously salted as this is also known from the production of salt cores for cooling only.
본 발명은 다음에서 본 발명에 따라서 제조된 베어링 부시를 사용하여 더 자세히 설명된다.The invention is explained in greater detail below using a bearing bush made in accordance with the invention.
베어링 부시는 이것의 길이의 약 60%가 되는 상부에 째진 표면을 가지며, 이 째진 표면은 부분적으로 주위에 주조되고 그리고 뒤에 분리된 소금입자가 발생되어 있다. 상응하는 주형 삽입물의 사용에 의하여 약간 더 작은 직경을 가지는 베어링 부시의 하부범위에는 베어링 부시가 비교적 매끈하다.The bearing bush has an upper surface that is about 60% of its length, the surface being partially cast around and thereafter separated salt particles. The bearing bush is relatively smooth in the subrange of the bearing bush with a slightly smaller diameter by use of the corresponding mold insert.
본 발명은 거친 외부표면을 가진 내연기관용 경합금 베어링 부시(bush)의 제조방법에 이용될 수 있다.The present invention can be used in a method of manufacturing a light alloy bearing bush for an internal combustion engine with a rough outer surface.
Claims (3)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10130416 | 2001-06-23 | ||
| DE10130416.1 | 2001-06-23 | ||
| DE10218714A DE10218714A1 (en) | 2001-06-23 | 2002-04-26 | Process for producing a light metal liner with an outer rough surface |
| DE10218714.2 | 2002-04-26 | ||
| PCT/DE2002/002074 WO2003000447A2 (en) | 2001-06-23 | 2002-06-07 | Method for producing a light-alloy bearing bush with a rough external surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20040004719A true KR20040004719A (en) | 2004-01-13 |
| KR100893960B1 KR100893960B1 (en) | 2009-04-20 |
Family
ID=7689264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020037016762A KR100893960B1 (en) | 2001-06-23 | 2002-06-07 | Method for producing a light-alloy bearing bush with a rough external surface |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100893960B1 (en) |
| DE (1) | DE10218714A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101496443B1 (en) * | 2010-10-06 | 2015-02-25 | 에스엠에스 지마크 악티엔게젤샤프트 | Method for preparing a bearing arrangement, and bearing arrangement |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10347512C5 (en) * | 2003-10-13 | 2012-09-06 | Federal-Mogul Burscheid Gmbh | Cylinder liner with thermally sprayed Rauschicht for internal combustion engines, their connection to a composite body and thus produced composite body |
| DE102004031164B4 (en) * | 2004-06-28 | 2008-03-20 | Federal-Mogul Burscheid Gmbh | Cast body with external coating for the production of composite bodies |
| KR102417747B1 (en) * | 2017-08-02 | 2022-07-07 | 엘지전자 주식회사 | Bush bearing with external lubricant layer and manufactoring method for this |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4034464A (en) | 1975-08-27 | 1977-07-12 | Ford Motor Company | Method of aluminum cylinder head valve seat coating transplant |
| JPS5257021A (en) | 1975-11-07 | 1977-05-11 | Nippon Musical Instruments Mfg | Method of manufacturing cylinder |
| DE19958185A1 (en) | 1999-12-02 | 2001-06-07 | Mahle Ventiltrieb Gmbh | Lost form for the production of a cylinder liner |
| JP2001276961A (en) * | 2000-03-30 | 2001-10-09 | Mazda Motor Corp | Preformed porous metal product and production process of composite metallic parts using the same |
-
2002
- 2002-04-26 DE DE10218714A patent/DE10218714A1/en not_active Withdrawn
- 2002-06-07 KR KR1020037016762A patent/KR100893960B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101496443B1 (en) * | 2010-10-06 | 2015-02-25 | 에스엠에스 지마크 악티엔게젤샤프트 | Method for preparing a bearing arrangement, and bearing arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10218714A1 (en) | 2003-01-02 |
| KR100893960B1 (en) | 2009-04-20 |
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