KR200319712Y1 - Partition cavity for mold - Google Patents
Partition cavity for mold Download PDFInfo
- Publication number
- KR200319712Y1 KR200319712Y1 KR20-2003-0010724U KR20030010724U KR200319712Y1 KR 200319712 Y1 KR200319712 Y1 KR 200319712Y1 KR 20030010724 U KR20030010724 U KR 20030010724U KR 200319712 Y1 KR200319712 Y1 KR 200319712Y1
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- KR
- South Korea
- Prior art keywords
- mold
- cylindrical
- cavity
- molding
- product
- Prior art date
Links
- 238000005192 partition Methods 0.000 title claims abstract description 5
- 238000000465 moulding Methods 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 4
- 229920001971 elastomer Polymers 0.000 description 7
- 239000004944 Liquid Silicone Rubber Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920002379 silicone rubber Polymers 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/36—Moulds having means for locating or centering cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C2045/2683—Plurality of independent mould cavities in a single mould
Abstract
본 고안은 분할캐비티를 가지는 원통형 금형에 관한 것으로, 원통형 금형 내방에 성형제품에 상응하는 분할캐비티를 더 구비하여 제품형상의 다양화와 성형후 탈형성을 향상시켜 생산성증대와 이에 따른 경제적 이익창출의 극대화를 이루기 위해 안출된 것으로,The present invention relates to a cylindrical mold having a split cavity, and further includes a split cavity corresponding to a molded product in a cylindrical mold to improve productivity and increase economic benefits by improving product diversification and deforming after molding. Designed to achieve maximum,
상기 원통형 금형(100)은,The cylindrical mold 100,
전체 형상이 원통형으로 상방의 직경(d)에 비하여 하방의 직경(d1)이 다소 작게 구비하여 탈형 구배(θ)를 형성하고,The overall shape is cylindrical and the lower diameter d1 is somewhat smaller than the upper diameter d to form a demolding gradient θ,
축중심을 기점으로 반원통형으로 분할 구비되고, 그 내주연을 통해 성형제품의 형상을 가지는 성형면(30) 및 분할면(33)에 상호 체결을 위해 자웅체의 돌기(31)와 요입홈(32)을 다수 개 형성한 분할캐비티(3)를 더 포함한 것을 특징으로 한다.Divided into a semi-cylindrical shape starting from the center of the shaft, through the inner periphery of the projections 31 and the concave groove (31) for mutual fastening to the molding surface 30 and the partition surface 33 having the shape of the molded product ( It characterized in that it further comprises a divided cavity (3) formed a plurality of 32).
Description
본 고안은 분할캐비티를 가지는 원통형 금형에 관한 것으로 더욱 상세하게는 고무제품의 성형에 적용된 원통 직립형 금형에 있어서, 언더컷이 형성된 제품과 성형 후 취출이 난이한 제품의 성형작업을 원활히 하기 위한 분할캐비티를 더 구비한 원통형 금형의 제공에 관한 것이다.The present invention relates to a cylindrical mold having a split cavity. More specifically, in a cylindrical upright mold applied to molding a rubber product, a split cavity for smoothly forming a product having an undercut and a product which is difficult to take out after molding is formed. It is related with the provision of the cylindrical mold further equipped.
일반적으로 고무 및 합성수지재를 이용한 제품의 성형을 위한 수단으로 사출성형과 같이 금형을 이용한 제품성형이 주종을 이루고 있다.In general, as a means for molding products using rubber and synthetic resin materials, product molding using molds is mainly used as injection molding.
이러한 금형을 통한 제품성형에느 다양하고 복잡한 금형설비가 요구되며, 그 가운데 중요한 부분이 성형제품에 상응하는 성형면을 형성한 성형금형이며, 이러한 성형금형은 성형제품 형태에 따라 그 규모와 형상이 결정되나 대부분 평판형으로 구성된다.Various and complex mold facilities are required for molding products through such molds, and an important part of them is a molding mold in which a molding surface corresponding to a molding product is formed. Determined but mostly flat.
상기와 같이 평판형 금형(20)을 이용한 제품성형시 성형품의 형태가 원통일 경우 상,하판 금형에 원통형 성형품의 반분할형상의 성형면을 형성한 후, 이들 각상,하판 금형을 접합하여 그 내방에 수지를 충진하여 성형면에 상응하는 성형품을 완성하였다.As described above, when the molded article is formed in a cylindrical shape using the flat die 20, the upper and lower dies are formed with a half-divided molded surface of the cylindrical molded article, and then the upper and lower dies are joined to each other. The resin was filled in to complete the molded article corresponding to the molding surface.
이와 같이 원통형 제품의 성형에 요구되는 평판현 금형(20)을 이루기 위해서는 각종 금형설비가 요구되어 많은 설비비용이 지출되며, 큰 규격의 금형으로 인해 작업성이 저하되는 단점을 안고 있었다.As described above, in order to achieve the flat plate mold 20 required for molding the cylindrical product, various mold facilities are required, and a lot of equipment costs are required, and due to the mold of a large size, workability is deteriorated.
더불어 평판형 금형은 소품종 대량생산에 적합한 구조로 금형변형이 난이하며, 변형시 금형수정에 따른 막대한 비용지출이 야기되는 문제점을 안고 있었다.In addition, the flat mold is a structure suitable for mass production of small items, difficult to mold deformation, and had a problem that causes a huge cost expenditure due to the modification of the mold.
그리하여 원통형 제품성형을 위해서는 평판형 금형이 아닌 도 2에서와 같은원통형 금형(100)을 안출하여 사용하고 있으며, 이러한 원통형 금형(100)은 대부분 고무재 제품성형과 다품종 소량생산에 널리 사용되고 있는 실정이다.Thus, for cylindrical product molding, the cylindrical mold 100 as shown in FIG. 2 is used instead of a flat mold, and the cylindrical mold 100 is mostly used for molding a rubber product and producing small quantities of many kinds. .
상기와 같은 원통형 금형(100)은 평판형 금형(20)에 비하여 금형설비가 간소화되고, 금형변형이 용이하여 다양한 제품성형이 가능한 장점을 안고 있다.Cylindrical mold 100 as described above has the advantage that the mold facility is simplified, and the mold deformation is easy compared to the flat mold 20 can be molded a variety of products.
이러한 원통형 금형(100)은 주입구(14)와 고정수단(13)을 가지는 원통형의 하부금형(10)과 상기 하부금형(10)상방에 안치되며 중심부로 코어(15)를 통해 성형공간을 형성한 중앙금형(11) 및 상기 중앙금형(11)상방에 개재되며 고정수단(13)과 게이트(16)를 형성한 상부금형(12)으로 크게 구성된다.The cylindrical mold 100 is a cylindrical lower mold 10 having an injection hole 14 and the fixing means 13 and the lower mold 10 is placed above the center to form a molding space through the core 15 to the center It is composed of a central mold (11) and the upper mold 12 interposed above the central mold (11) and having a fixing means (13) and a gate (16).
상기와 같이 구성된 원통형 금형(100)은 원통형 성형품에 적합한 구조로서, 각 금형을 조립한 상태에서 하부금형(10) 일측에 구비된 주입구(14)를 통해 수지를 충진하여 소정시간 후 냉각하여 성형된 제품을 취출완성한다.The cylindrical mold 100 configured as described above is a structure suitable for a cylindrical molded product, and is molded by cooling the resin after a predetermined time by filling the resin through an injection hole 14 provided at one side of the lower mold 10 in an assembled state of each mold. Take out the product.
이상과 같은 원통형 금형(100)을 통한 제품성형은 대부분 고무재로 구성된 제품의 성형에 이용되며, 이러한 고무재 가운데 자동차 엔진부품이나 반도체 부품에 사용되는 LSR(Liquid Silicone Rubber)은 경화되면서 팽창하는 성질을 가진다.Product molding through the cylindrical mold 100 as described above is mostly used for the molding of products consisting of rubber materials, among these rubber materials LSR (Liquid Silicone Rubber) used for automotive engine parts or semiconductor parts is a property that expands while curing Has
그리하여 원통형 금형(100)을 통한 LSR재질의 제품을 성형할 경우 탈형구배가 형성되었다 하더라도, 경화되면서 팽창하여 성형품(101)과 중앙금형(11)이 밀착되어 탈형성이 저하되어 생산성저하는 물론 취출시 형상변형에 따른 불량발생의 원인으로 작용하였다.Thus, even when a mold release product is formed through the cylindrical mold 100, even if a demolding gradient is formed, it expands as it is hardened, and the molded article 101 and the center mold 11 are in close contact with each other. It acted as a cause of defects caused by shape deformation.
뿐만 아니라 원통형 성형품 가운데 언더컷이 형성된 제품의 경우 상기한 원통형 금형의 장점에도 불구하고, 성형후 탈형이 불가능하여 금형설비가 복잡다대한평판형 금형을 통해 생산하므로서 생산단가 상승을 초래하였다.In addition, in the case of the product formed undercut among the cylindrical molded products, despite the advantages of the above-mentioned cylindrical mold, it is impossible to demould after molding, the mold equipment is complicated, and the production through the flat mold caused a rise in production cost.
이에 본 고안은 상기한 문제점을 해결하기 위해 안출된 것으로, 원통형 금형내방에 성형제품에 상응하는 분할캐비티를 더 구비하여 제품형상의 다양화와 성형후 탈형성을 향상시켜 생산성증대와 이에 따른 경제적 이익창출의 극대화를 그 목적으로 한다.Therefore, the present invention has been devised to solve the above problems, and further includes a split cavity corresponding to a molded product in a cylindrical mold to improve product diversification and deformability after molding, thereby increasing productivity and consequently economic benefits. Its purpose is to maximize creation.
도 1은 일반적인 금형의 일례를 도시한 정면도 및 A - A선 단면도,1 is a front view and a line A-sectional view showing an example of a general mold,
도 2는 종래 기술이 적용된 원통형 금형을 도시한 전체 단면도,Figure 2 is an overall cross-sectional view showing a cylindrical mold to which the prior art is applied,
도 3은 본 고안의 기술이 원통형 금형용 분할캐비티를 도시한 정면도 및 평면도와 분할캐비티가 적용된 원통형 금형을 도시한 전체 단면도,3 is a front sectional view and a plan view showing a split cavity for a cylindrical mold according to the present invention, and a cross sectional view showing a cylindrical mold to which a split cavity is applied;
도 4는 본 고안의 기술이 적용된 원통형 금형용 분할캐비티 가운데 언더컷을 가지는 분할캐비티 도시한 정면도 및 평면도와 분할캐비티가 적용된 원통형 금형을 도시한 전체 단면도.Figure 4 is a front cross-sectional view and a plan view showing a split cavity having an undercut among the split cavity for the cylindrical mold to which the technique of the present invention is applied and a cross-sectional view showing a cylindrical mold to which the split cavity is applied.
*도면의 주요 부분에 사용된 부호의 설명** Description of the symbols used in the main parts of the drawings *
10;하부금형 11;중앙금형10; lower mold 11; central mold
12;상부금형 3;분할캐비티12; upper mold 3; split cavity
30;성형면 33;분할면30; molding face 33; split face
31;돌기 32;요입홈31; projection 32; indentation groove
100;원통형 금형 θ;탈형구배100; cylindrical mold θ; demolding gradient
이하 첨부되는 도면과 관련하여 본 고안의 구성 및 작용에 대하여 설명하면 다음과 같다.Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.
도 3은 본 고안의 기술이 원통형 금형용 분할캐비티를 도시한 정면도 및 평면도와 분할캐비티가 적용된 원통형 금형을 도시한 전체 단면도, 도 4는 본 고안의 기술이 적용된 원통형 금형용 분할캐비티 가운데 언더컷을 가지는 분할캐비티 도시한 정면도 및 평면도와 분할캐비티가 적용된 원통형 금형을 도시한 전체 단면도로서 함께 설명한다.3 is a front sectional view and a plan view showing a split cavity for a cylindrical mold and a cross-sectional view showing a cylindrical mold to which a split cavity is applied, and FIG. 4 is a split having an undercut among split cavity for a cylindrical mold to which the technique of the present invention is applied. A front view and a plan view of the cavity and a cylindrical mold to which the division cavity is applied will be described together as an overall sectional view.
상기 목적을 달성하기 위한 본 고안인 원통형 금형용 분할캐비티(3)는 도 3에서와 같이, 전체 형상이 원통형으로 상방의 직경(d)에 비하여 하방의 직경(d1)이 다소 작게 구비하여 탈형 구배(θ)가 형성되도록 한다.Dividing cavity 3 for cylindrical mold according to the present invention for achieving the above object, as shown in Figure 3, the overall shape is cylindrical, the lower diameter (d1) than the upper diameter (d) is provided with a somewhat smaller demold gradient ( θ) is formed.
상기와 같이 원통형을 이루는 캐비티(3)는 축중심을 기점으로 반원통형으로 분할 구비되고, 그 내주연을 통해 성형제품의 형상을 가지는 성형면(30)을 형성하며, 이러한 분할된 캐비티(3)는 상호 체결을 위해 자웅체의 돌기(31)와 요입홈(32)을 분할면(33)에 각각 다수 개 형성한다.As described above, the cylindrical cavity 3 is divided into a semi-cylindrical shape based on the axis center, and forms a molding surface 30 having a shape of a molded product through its inner circumference, and the divided cavity 3 is formed. To form a plurality of projections 31 and the concave groove 32 of the male body on each of the divided surface 33 for fastening to each other.
상기와 같이 구성된 분할캐비티(3)는 원통형 제품 성형을 비롯하여 원통형과 아울러 언더컷이 형성된 제품 성형에도 적용한데,Split cavity (3) configured as described above is applied to the molding of the product, including the cylindrical, as well as the undercut is formed, including the cylindrical product molding,
이를 위해 분할캐비티(3)는 도 4에서와 같이, 전체 형상은 상술한 언더컷이 없는 캐비티(3)와 동일하게 탈형 구배(θ)를 형성하여 구비되고, 그 내주연으로 언더컷을 형성한 성형면(30')과, 분할면(33')으로 분할캐비티(3)의 체결을 위해 자웅체의 돌기(31')와 요입홈(32')을 각각 구비한다.To this end, as shown in FIG. 4, the divided cavity 3 is formed by forming a demolding gradient θ in the same manner as the cavity 3 without the undercut as described above, and forming the undercut by the inner circumference thereof. 30 'and the projection 31' and the concave groove 32 'of the male body for fastening the division cavity 3 to the division surface 33', respectively.
상기와 같이 구성된 본 고안인 원통형 금형용 분할캐비티(3)는 분할면에 형성된 돌기와 요입홈을 상호 체결하여 반원통형의 분할된 캐비티를 원통형으로 이룬다.Cylindrical mold split cavity 3 of the present invention configured as described above forms a semi-cylindrical divided cavity by fastening the projection formed in the divided surface and the recess groove.
상기와 같이 분할캐비티의 조립이 완료되면 원통형 금형(100)은 도 3 및 도 4에도시된 단면도에서 같이, 하부금형(10)상에 중앙금형(11)을 안치하여 볼트등의 고정수단(13)을 통해 고정하고, 이어 조립된 분할캐비티(3)를 중앙금형(11) 중심부 공간에 삽입 장착한다.When the assembly of the split cavity is completed as described above, the cylindrical mold 100 is placed in the center mold 11 on the lower mold 10, as shown in the cross-sectional view shown in Figs. Fixed through), and then inserts the assembled partition cavity (3) into the central mold (11) center space.
상기와 같이 중앙금형(11)내방에 분할캐비티(3)를 장착하면, 상부금형(12)을 중앙금형(11)상방에 안치하여 볼트등의 고정수단(13)으로 중앙금형(11)과 상부금형(12)이 상호 견고한 고정상태를 유지하도록 한다.When the split cavity 3 is mounted inside the central mold 11 as described above, the upper mold 12 is placed above the central mold 11 so that the central mold 11 and the upper part are fixed by fixing means 13 such as bolts. The molds 12 are held firmly fixed to each other.
이와 같이 각 금형(10,11,12)의 조립이 완성되면 하부금형(10) 일측에 구비된 주입구(14)를 통해 용융상태의 고무를 충진하여 분할캐비티(3) 내주연에 형성된 성형면(30)과 상응하는 제품의 성형을 도모한다.As such, when the assembling of each mold 10, 11, 12 is completed, the molding surface is formed on the inner circumference of the divided cavity 3 by filling the molten rubber through the injection hole 14 provided at one side of the lower mold 10 ( Promote molding of the product corresponding to 30).
이 때 작업자는 성형제품의 형상에 따라 분할캐비티(3)와 이를 수용장착하는 중앙금형(11)을 선택적으로 조립함으로써 다양한 제품의 성형이 용이하도록 한다.In this case, the worker selectively assembles the division cavity 3 and the central mold 11 accommodating and mounting the molded product according to the shape of the molded product, thereby facilitating the molding of various products.
상기와 같이 분할캐비티(3)를 통해 원통형 및 언더컷을 가지는 원통형 제품의 성형이 완료되면 상부금형(12)을 중앙금형(11)으로부터 탈거하고, 분할캐비티(3)를 중앙금형(11)으로부터 탈형한 후, 돌기(31)와 요입홈(32)에 의해 체결된 분할캐비티(3)를 분할하여 그 내방에 성형된 제품(101)을 취출 완성한다.When the molding of the cylindrical product having a cylindrical shape and an undercut is completed through the division cavity 3 as described above, the upper mold 12 is removed from the central mold 11, and the division cavity 3 is demolded from the central mold 11. Then, the division cavity 3 fastened by the projection 31 and the recessed groove 32 is divided, and the finished product 101 molded in the inner side is taken out.
이 처럼 분할캐비티(3)를 통한 제품성형은 종래 원통형 금형의 최대 단점인 언더컷이 형성된 제품의 성형이 가능하여 금형 활용도확대에 유도할 수 있으며,The product molding through the split cavity (3) as described above is capable of molding the product formed with the undercut, which is the biggest disadvantage of the conventional cylindrical mold, can lead to the expansion of mold utilization.
나아가 본 고안인 분할캐비티(3)는,Furthermore, the dividing cavity 3 of the present invention,
대부분의 원통형 금형을 통해 생산되는 제품의 재질이 고무이며, 그 가운데 LSR의 경우 경화되면서 팽창하는 특징으로 인해 분할캐비티가 없는 종래 성형공정에서는 탈형 구배가 형성되었다 하더라도 금형에서 취출이 극히 난이한 문제점을 해결할 수 있다.The material of most cylindrical molds is rubber. Among them, LSR is hardened and expands as it is hardened, so in the conventional molding process without a split cavity, even if a demolding gradient is formed, the ejection from the mold is extremely difficult. I can solve it.
또한 LSR의 원활한 탈형을 위해 성형시 금형 내벽에 테프론코팅과 같은 특수처리를 수행해야하는 작업상 문제점을 동시에 해결할 수 있다.In addition, it is possible to solve the problem of work that requires special treatment such as Teflon coating on the inner wall of the mold during the demolding of the LSR.
이상과 같은 본 고안인 원통형 금형용 분할캐비티는 원통형 금형을 통해 성형이 불가능했던 언더컷이 형성된 원통형 제품의 성형이 용이하여 금형 활용도 확대에 따른 제품 생산성이 향상되며,Split cavity for cylindrical mold of the present invention as described above is easy to mold the cylindrical product formed undercut was impossible through the cylindrical mold to improve the product productivity according to the expanded mold utilization,
나아가 LSR과 같은 특이 소재의 제품성형시 별도의 표면처리공정을 삭제하여성형공정 간소화에 따른 생산단가 절감을 유도하여 시장성확보에 따른 경제적 이익 창출의 극대화를 이룰 수 있는 유용한 고안이다.Furthermore, it is a useful design that can maximize the economic profit creation by securing the market by inducing the production cost reduction by simplifying the molding process by eliminating the separate surface treatment process when forming the product of the special material such as LSR.
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| KR20-2003-0010724U KR200319712Y1 (en) | 2003-04-04 | 2003-04-04 | Partition cavity for mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20200011784A (en) * | 2018-07-25 | 2020-02-04 | 주식회사 씨에이치솔루션 | Mold for chamber casting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20200011784A (en) * | 2018-07-25 | 2020-02-04 | 주식회사 씨에이치솔루션 | Mold for chamber casting |
| KR102491432B1 (en) | 2018-07-25 | 2023-01-26 | 주식회사 씨에이치솔루션 | Mold for chamber casting |
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