KR20010048574A - manufacturing method of plate using waste plastic marerials - Google Patents

manufacturing method of plate using waste plastic marerials Download PDF

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Publication number
KR20010048574A
KR20010048574A KR1019990053302A KR19990053302A KR20010048574A KR 20010048574 A KR20010048574 A KR 20010048574A KR 1019990053302 A KR1019990053302 A KR 1019990053302A KR 19990053302 A KR19990053302 A KR 19990053302A KR 20010048574 A KR20010048574 A KR 20010048574A
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KR
South Korea
Prior art keywords
resin
metal member
reinforcing member
product
space
Prior art date
Application number
KR1019990053302A
Other languages
Korean (ko)
Inventor
송덕봉
Original Assignee
송덕봉
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Publication date
Application filed by 송덕봉 filed Critical 송덕봉
Priority to KR1019990053302A priority Critical patent/KR20010048574A/en
Priority to CN00136637A priority patent/CN1298792A/en
Publication of KR20010048574A publication Critical patent/KR20010048574A/en

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Classifications

    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14819—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being completely encapsulated
    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14631—Coating reinforcements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts

Abstract

PURPOSE: A manufacturing method of resin product inserted metal members or supporting members is provided, which need not a post manufacturing, prevents a corrosion of metal members or reinforcing members, and reduce the product cost, by injecting fluid resin after mounting metal members or supporting members. CONSTITUTION: A lower molding(52) has a space part(50) of finished shape. An upper molding(54) closes the space part. An injection port of fluid resin is formed on the upper and the lower molding. A metal member or a reinforce member of band plate shape(56) is inserted in the inner of the space part. A holder(58), which is made of resin material, stuck the both inside walls of the space part and supports the metal member or the reinforcing member. Several penetrated holes(60)(60') are formed on the edge of the upper and the lower molding and insert the joining member, which joins the upper and the lower molding.

Description

금속부재 또는 보강부재가 삽입된 수지제품의 제조방법{manufacturing method of plate using waste plastic marerials}Manufacturing method of resin product in which metal member or reinforcing member is inserted {manufacturing method of plate using waste plastic marerials}

일반적으로 사출성형에 제조되는 수지제품은 강도를 보강하기 위해 판의 일측면에 리브를 형성하게 된다. 또한, 거푸집이나 토류판(사태방지용 흙받이 판)등은 강도가 특히 크야 하므로, 상기 리브 내부에 금속부재 또는 보강부재를 삽입하여 제조하게 된다. 그리고, 수지는 재활용도를 높이도록 폐수지를 사용하는 경우가 많다.In general, resin products manufactured by injection molding have ribs formed on one side of the plate to reinforce the strength. In addition, since the formwork or earth plate (spinning prevention fender plate) and the like should be particularly large in strength, it is manufactured by inserting a metal member or a reinforcing member inside the rib. In addition, resins often use waste resins to increase the degree of recycling.

이러한 금형의 내부에 금속부재 또는 보강부재를 삽입하여 수지제품을 제조하는 과정에서, 제품에서 리브가 되는 공간에 금속부재 또는 보강부재를 삽입한 상태가 도1에 도시되어 있다.In the process of manufacturing a resin product by inserting a metal member or reinforcing member in the mold, a state in which the metal member or reinforcing member is inserted in the space to be ribs in the product is shown in FIG.

도시한 바와 같이, 금형은 수지의 완성품 형상의 공간부(10)을 가진 하부금형(12)과, 상기 공간부(10)를 막는 상부금형(14)로 되어 있다. 상기 상, 하부금형(14)(12)에는 도시하지 않은 용융물 투입구가 형성되어 있다. 그리고, 상기 공간부(10)의 양측에는 금속부재 또는 보강부재(16)를 삽입하여 걸리게 하는 끼움홈(18)이 형성되어 있다. 상기 상부금형(14)은 판형상으로 되어 있다.As shown, the mold consists of a lower mold 12 having a space portion 10 in the shape of a finished product of resin, and an upper mold 14 which closes the space portion 10. The upper and lower molds 14 and 12 are formed with a melt inlet not shown. In addition, fitting grooves 18 are formed on both sides of the space part 10 to insert the metal member or the reinforcing member 16 to be caught. The upper mold 14 has a plate shape.

상기 상, 하부금형(14)(12)의 가장자리에는 상, 하부금형을 체결하는 체결부재를 삽입하도록 다수의 관통구멍(20)(20')이 형성되어 있다. 상기 하부금형의 공간부(10)는 제조하고자 하는 수지제품의 형상에 따라 다양한 형태의 공간을 이루게 한다.At the edges of the upper and lower molds 14 and 12, a plurality of through holes 20 and 20 'are formed to insert fastening members for fastening the upper and lower molds. The space portion 10 of the lower mold makes a space of various shapes according to the shape of the resin product to be manufactured.

이와 같이 구성된 금형을 사용하여 수지제품을 제조할 때에는, 상기 공간부에 띠형상의 상기 보강용 금속부재 또는 보강부재(16)를 삽입하게 되는데, 공간부(10)중에서 제품의 리브가 될 부분의 양단에 형성된 끼움홈(18)에 보강용 금속부재 또는 보강부재(16)를 걸리게 한 다음, 상부금형(14)으로 하부금형(12)의 공간부(10)를 덮어 구멍(20)(20')을 통해 도시하지 않은 체결부재로 하부금형(12)과 상부금형(14)을 체결한 후, 도시하지 않은 용융물 투입구를 통해 용융된 수지(또는 폐수지)를 투입한다.When manufacturing a resin product using the mold configured as described above, the band-shaped reinforcing metal member or reinforcing member 16 is inserted into the space portion, and both ends of the portion of the space portion 10 to be ribs of the product are inserted. The reinforcing metal member or reinforcing member 16 is hung on the fitting groove 18 formed in the groove 18, and then the space 10 of the lower mold 12 is covered with the upper mold 14 so that the holes 20, 20 'are covered. After fastening the lower mold 12 and the upper mold 14 with the fastening member (not shown) through, the molten resin (or waste resin) is introduced through the melt inlet (not shown).

다음에, 소정의 시간이 경과하여 수지가 굳은 다음, 상, 하부금형(14)(12)를 분리하여, 공간부(10)에서 성형된 반제품을 꺼내게 된다. 상기 공간부에 꺼낸 반제품이 도2에 도시되어 있다. 이러한 반제품(22)은 가로방향의 리브(24)를 따라 금속부재 또는 보강부재(16)가 삽입되어 반제품의 양측면으로 돌출되어 있다. 이러한 금속부재 또는 보강부재(16)의 돌출부(26)는 금형의 끼움홈(18)에 끼워져 있던 부분이다.Next, after a predetermined time has elapsed, the resin is hardened, and then the upper and lower molds 14 and 12 are separated to take out the molded semi-finished product from the space part 10. The semifinished product taken out of the space part is shown in FIG. The semi-finished product 22 has a metal member or reinforcing member 16 is inserted along the rib 24 in the transverse direction and protrudes to both sides of the semi-finished product. The protruding portion 26 of the metal member or the reinforcing member 16 is a portion fitted into the fitting groove 18 of the mold.

상기 반제품의 돌출부(26)를 절단기로 절단하면, 수지제품이 완성된다.When the protrusion 26 of the semifinished product is cut by a cutter, the resin product is completed.

그런데, 이와 같이 금속부재 또는 보강부재를 삽입하여 수지제품을 제조하는 종래의 방법에서는 금형에서 꺼낸 수지제품의 반제품에는 금속부재 또는 보강부재가 수지제품의 외측으로 돌출되어 있으므로, 이 돌출부를 절단하여야 한다는 문제점이 있었다.However, in the conventional method of manufacturing a resin product by inserting a metal member or a reinforcing member in this way, since the metal member or reinforcing member protrudes out of the resin product in the semi-finished product of the resin product taken out of the mold, the protrusion must be cut. There was a problem.

또한, 금속부재 또는 보강부재의 절단부위는 외부로 노출되어 있으므로, 수지제품을 사용하게 되면 수분등에 의해 금속부재 또는 보강부재가 부식된다는 문제점이 있었다.In addition, since the cut portion of the metal member or the reinforcing member is exposed to the outside, when the resin product is used, there is a problem that the metal member or the reinforcing member is corroded by moisture or the like.

또한, 금속부재(또는 보강부재)와 수지간에는 수축팽창계수가 다르기 때문에 일정시간이 지나면 외측으로 금속부재 또는 보강부재가 다시 튀어 나와 돌출되는 문제점이 있었다.In addition, since the shrinkage expansion coefficient is different between the metal member (or the reinforcing member) and the resin, there is a problem that the metal member or the reinforcing member protrudes out again after a predetermined time.

따라서, 본 발명은 상기 문제점을 해결하기 위해 이루어진 것으로서, 본 발명의 목적은 금속부재 또는 보강부재를 절단하는 후가공이 불필요하고 금속부재 또는 보강부재가 부식되지 않게 하는 금속부재 또는 보강부재가 삽입된 수지제품의 제조방법을 제공하는 데 있다.Accordingly, the present invention has been made to solve the above problems, an object of the present invention is to eliminate the post-processing to cut the metal member or reinforcing member and to insert the metal member or reinforcing member to prevent the metal member or reinforcing member from corrosion It is to provide a method of manufacturing a product.

도1은 종래 수지제품의 제조중에 금속부재 또는 보강부재를 금형에 설치한 상태를 도시한 상태도,1 is a state diagram showing a state where a metal member or a reinforcing member is installed in a mold during the manufacture of a conventional resin product;

도2는 도1의 금형으로 사출성형된 수지제품을 나타내는 사시도,Figure 2 is a perspective view showing a resin product injection molded in the mold of Figure 1,

도3은 본 발명에 의한 수지제품의 제조방법에서 금속부재 또는 보강부재를 금형에 설치한 상태를 나타내는 사시도,3 is a perspective view showing a state in which a metal member or a reinforcing member is installed in a mold in the method of manufacturing a resin product according to the present invention;

도4는 도3에서 화살표 A-A선에 따른 단면도,4 is a cross-sectional view taken along the arrow A-A line in FIG.

도5는 도3의 지지부재 및 금속부재(또는 보강부재)를 나타내는 사시도,5 is a perspective view showing a supporting member and a metal member (or reinforcing member) of FIG.

도6은 도3의 금형으로 사출성형한 수지제품을 나타내는 사시도,Figure 6 is a perspective view showing a resin product injection molded in the mold of Figure 3,

도7은 도6에서 화살표 B-B선에 따른 단면도이다.FIG. 7 is a cross-sectional view taken along the arrow line B-B in FIG.

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

52 : 하부금형 54 : 상부금형52: lower mold 54: upper mold

56 : 금속부재 또는 보강부재 58 : 홀더56 metal member or reinforcing member 58 holder

70 : 수지제품70: Resin

상기 목적을 달성하기 위해 이루어진 본 발명에 의한 금속부재 또는 보강부재가 삽입된 수지제품의 제조방법은, 금형의 공간 내부에 금속부재 또는 보강부재를 설치하고, 용융된 수지를 상기 공간에 투입하여 수지제품을 제조하는 방법에 있어서, 상기 금속부재 또는 보강부재를 공간의 양 내벽에 밀착되는 수지재로 된 홀더에 끼워 설치한 다음, 용융된 수지를 상기 공간에 투입하여 수지제품을 제조하는 것을 특징으로 한다.According to the present invention, there is provided a method of manufacturing a resin product having a metal member or reinforcing member inserted therein, wherein the metal member or reinforcing member is installed in a space of a mold, and the molten resin is introduced into the space to provide a resin. A method of manufacturing a product, wherein the metal member or the reinforcing member is inserted into a holder made of a resin material in close contact with both inner walls of the space, and then the molten resin is introduced into the space to manufacture the resin product. do.

이하, 본 발명의 실시예에 관하여 첨부도면을 참조하면서 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 의해 금형의 내부에 금속부재 또는 보강부재를 삽입하여 수지제품을 제조하는 과정에서, 제품에서 리브가 되는 공간에 금속부재 또는 보강부재를 삽입한 상태가 도3에 도시되어 있다.In the process of manufacturing a resin product by inserting a metal member or reinforcing member in the mold according to the present invention, a state in which the metal member or reinforcing member is inserted in the space to be ribs in the product is shown in FIG.

도시한 바와 같이, 금형은 수지의 완성품 형상의 공간부(50)을 가진 하부금형(52)과, 상기 공간부(50)를 막는 상부금형(54)로 되어 있다. 상기 상, 하부금형(54)(52)에는 도시하지 않은 용융물 투입구가 형성되어 있다. 그리고, 상기 공간부(50)중에서 제품의 리브가 되는 공간부에는 띠판형상의 금속부재 또는 보강부재(56)가 삽입되어 있다. 이때, 상기 금속부재 또는 보강부재(56)는 상기 공간부(50)의 양 내벽에 밀착되는 수지재로 된 홀더(58)에 의해 받쳐져 있다.As shown, the mold consists of a lower mold 52 having a space 50 in the shape of a finished product of resin, and an upper mold 54 that closes the space 50. The upper and lower molds 54 and 52 are formed with a melt inlet not shown. A band-shaped metal member or reinforcing member 56 is inserted into the space portion that becomes the rib of the product in the space portion 50. At this time, the metal member or the reinforcing member 56 is supported by a holder 58 made of a resin material in close contact with both inner walls of the space 50.

상기 상부금형(54)은 판형상으로 되어 있다.The upper mold 54 has a plate shape.

상기 상, 하부금형(54)(52)의 가장자리에는 상,하부금형을 체결하는 체결부재를 삽입하도록 다수의 관통구멍(60)(60')이 형성되어 있다. 상기 하부금형의 공간부(50)는 제조하고자 하는 수지제품의 형상에 따라 다양한 형태의 공간을 이루게 한다.At the edges of the upper and lower molds 54 and 52, a plurality of through holes 60 and 60 'are formed to insert fastening members for fastening the upper and lower molds. The space portion 50 of the lower mold forms a space of various shapes according to the shape of the resin product to be manufactured.

상기 홀더(58)는 도5에 도시한 바와 같이, 상기 금속부재 또는 보강부재(56)의 두께(T)부분이 끼워지는 폭(W)의 홈(62)을 가지도록 양측으로 플랜지(64)(64')가 형성되고, 상기 플랜지(64)(64')의 외측면에는 상기 제품(수지제품)의 리브가 되는 공간부의 양측벽에 밀착하는 리브(66)(66')가 수직방향으로 설치되어 있다. 그리고 홀더(58)의 하측면에는 제품(수지제품)의 리브가 되는 공간부의 바닥면에 밀착하는 돌기부(68)가 형성되어 있다.As shown in FIG. 5, the holder 58 has flanges 64 on both sides thereof to have grooves 62 having a width W into which the thickness T portion of the metal member or reinforcing member 56 is fitted. 64 'is formed, and ribs 66 and 66', which are in close contact with both side walls of the space portion that becomes the rib of the product (resin product), are installed on the outer surfaces of the flanges 64 and 64 'in the vertical direction. It is. And the lower part of the holder 58 is provided with the projection part 68 which adheres to the bottom surface of the space part used as the rib of a product (resin product).

상기 금속부재 또는 보강부재(56)의 길이방향 양단은 공간부의 양단측면에 밀착되지 않게 적절한 길이로 되어 있다.Both ends of the metal member or the reinforcing member 56 in the longitudinal direction are of an appropriate length so as not to be in close contact with both end surfaces of the space portion.

이와 같이 구성된 금형을 사용하여 수지제품을 제조할 때에는, 공간부(50)중에서 제품(수지제품)의 리브가 될 부분에 금속부재 또는 보강부재(56)를 수용시키게 되는데, 상기 금속부재 또는 보강부재(56)는 상기 홀더(58)에 끼워 받친다. 상기 홀더(58)의 홈(62)에는 금속부재 또는 보강부재(56)의 두께부분이 끼워지게 되는데, 홀더(58)의 돌기부(68)는 공간부의 바닥면에 밀착하고, 홀더(58)의 리브(66)은 공간부의 양측벽면에 밀착하게 된다. 따라서, 금속부재 또는 보강부재(56)가 움직이지 않는다. 이때, 상기 홀더(58)는 금속부재 또는 보강부재(56)의 길이방향을 따라 적절한 간격마다 설치한다.When manufacturing a resin product using the mold configured as described above, the metal member or the reinforcing member 56 is accommodated in a portion of the space 50 to be a rib of the product (resin product). 56 is fitted to the holder 58. The thickness of the metal member or the reinforcing member 56 is inserted into the groove 62 of the holder 58. The protrusion 68 of the holder 58 is in close contact with the bottom surface of the space, and The rib 66 comes into close contact with both side wall surfaces of the space portion. Therefore, the metal member or the reinforcing member 56 does not move. At this time, the holder 58 is installed at appropriate intervals along the longitudinal direction of the metal member or reinforcing member 56.

금속부재 또는 보강부재(56) 및 홀더(58)를 설치한 상태의 단면도가 도4에 도시되어 있다.4 is a cross-sectional view of the metal member or the reinforcing member 56 and the holder 58 installed.

다음에, 상부금형(54)으로 하부금형(52)의 공간부(50)를 덮어 구멍(60)(60')을 통해 도시하지 않은 체결부재로 하부금형(52)과 상부금형(54)을 체결한 후, 도시하지 않은 용융물 투입구를 통해 용융된 수지(또는 폐수지)를 투입한다. 용융된 수지(또는 폐수지)는 수지재의 홀더(58)를 녹이면서 함께 굳어 진다.Next, the space 50 of the lower mold 52 is covered with the upper mold 54, and the lower mold 52 and the upper mold 54 are formed by fastening members (not shown) through the holes 60 and 60 '. After tightening, molten resin (or waste resin) is introduced through a melt inlet not shown. The molten resin (or waste resin) hardens together while melting the holder 58 of the resin material.

다음에, 소정의 시간이 경과하여 수지(또는 폐수지)가 굳은 다음, 상, 하부금형(54)(52)를 분리하여, 공간부(50)에서 성형된 제품을 꺼내게 된다. 상기 공간부에 꺼낸 제품(70)이 도6 및 도7에 도시되어 있다. 도시한 바와 같이 금속부재 또는 보강부재(56)는 제품의 리브부(72)내에 완전히 함몰되어 외부로 노출되지 않는다.Next, after a predetermined time has elapsed, the resin (or waste resin) hardens, and then the upper and lower molds 54 and 52 are separated to take out the molded product from the space 50. The product 70 taken out of the space is shown in Figs. As shown, the metal member or reinforcing member 56 is completely recessed in the rib portion 72 of the product and is not exposed to the outside.

따라서 별도의 후가공(절단)공정이 없이 수지제품이 간단히 제조된다. 또한, 금속부재 또는 보강부재가 외부로 노출되지 않으므로 부식의 우려가 없다.Therefore, the resin product is simply manufactured without a separate post-processing (cutting) process. In addition, since the metal member or the reinforcing member is not exposed to the outside, there is no fear of corrosion.

이와 같이 구성된 금속부재 또는 보강부재가 삽입된 수지제품의 제조방법에 의하면, 금속부재 또는 보강부재를 절단하는 후가공이 불필요하고 금속부재 또는 보강부재가 부식되지 않게 하므로, 제조비가 적게 들고 외관이 미려하며 청결하다는 효과가 있다.According to the manufacturing method of the resin product in which the metal member or reinforcing member is constructed as described above, post-processing for cutting the metal member or reinforcing member is unnecessary and the metal member or reinforcing member is not corroded, so that the manufacturing cost is low and the appearance is beautiful. It is clean.

Claims (1)

금형의 공간 내부에 금속부재 또는 보강부재를 설치하고, 용융된 수지를 상기 공간에 투입하여 수지제품을 제조하는 방법에 있어서,In the method of manufacturing a resin product by installing a metal member or a reinforcing member in the space of the mold, and injecting the molten resin into the space, 상기 금속부재 또는 보강부재를 공간의 양 내벽에 밀착되는 수지재로 된 홀더에 끼워 설치한 다음,The metal member or the reinforcing member is mounted in a holder made of a resin material which is in close contact with both inner walls of the space, 용융된 수지를 상기 공간에 투입하여 수지제품을 제조하는 것을 특징으로 하는 금속부재 또는 보강부재가 삽입된 수지제품의 제조방법.A method for producing a resin product having a metal member or reinforcing member inserted therein, wherein the molten resin is introduced into the space to produce a resin product.
KR1019990053302A 1999-11-27 1999-11-27 manufacturing method of plate using waste plastic marerials KR20010048574A (en)

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WO2013027219A1 (en) * 2011-08-24 2013-02-28 Green Neighborhood Limited Partnership An article of manufacture and method for its preparation
CN103057021A (en) * 2011-10-20 2013-04-24 吴起万 Forming method of pallet used for supporting high-load object, and product thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60183117A (en) * 1984-03-02 1985-09-18 Dainippon Ink & Chem Inc Manufacture of synthetic resin molded piece reinforced by reinforcement
JPS61197210A (en) * 1984-10-31 1986-09-01 Toyoda Gosei Co Ltd Insert molding method
JPS62184822A (en) * 1986-02-10 1987-08-13 Inax Corp Molding of unit panel for sectional storage tank and insert positioner for execution thereof
US4824627A (en) * 1985-11-18 1989-04-25 Floyd V. Hammer Method of making a molded plastic product

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60183117A (en) * 1984-03-02 1985-09-18 Dainippon Ink & Chem Inc Manufacture of synthetic resin molded piece reinforced by reinforcement
JPS61197210A (en) * 1984-10-31 1986-09-01 Toyoda Gosei Co Ltd Insert molding method
US4824627A (en) * 1985-11-18 1989-04-25 Floyd V. Hammer Method of making a molded plastic product
JPS62184822A (en) * 1986-02-10 1987-08-13 Inax Corp Molding of unit panel for sectional storage tank and insert positioner for execution thereof

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