KR102619508B1 - Mold surface coating method and mold product - Google Patents
Mold surface coating method and mold product Download PDFInfo
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- KR102619508B1 KR102619508B1 KR1020230036771A KR20230036771A KR102619508B1 KR 102619508 B1 KR102619508 B1 KR 102619508B1 KR 1020230036771 A KR1020230036771 A KR 1020230036771A KR 20230036771 A KR20230036771 A KR 20230036771A KR 102619508 B1 KR102619508 B1 KR 102619508B1
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- heat treatment
- mold surface
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- 238000000576 coating method Methods 0.000 title claims abstract description 114
- 239000011248 coating agent Substances 0.000 claims abstract description 93
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 238000010304 firing Methods 0.000 claims abstract description 30
- 238000005260 corrosion Methods 0.000 claims abstract description 17
- 230000007797 corrosion Effects 0.000 claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- 230000000873 masking effect Effects 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 238000005245 sintering Methods 0.000 claims abstract 4
- 239000011247 coating layer Substances 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 18
- 238000005524 ceramic coating Methods 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 14
- 238000005728 strengthening Methods 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 229910021392 nanocarbon Inorganic materials 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 238000007670 refining Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 24
- 239000007924 injection Substances 0.000 description 24
- 239000000243 solution Substances 0.000 description 20
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 5
- 239000006082 mold release agent Substances 0.000 description 5
- 230000002087 whitening effect Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
- B05B12/122—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to presence or shape of target
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
- B05B12/124—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to distance between spray apparatus and target
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/20—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
- B05D1/322—Removable films used as masks
- B05D1/325—Masking layer made of peelable film
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
- B05D3/0263—After-treatment with IR heaters
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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
- B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
본 발명은 금형 표면 코팅 방법 및 금형 제품에 관한 것이다.
본 발명은 이를 위해 본 발명은 금형 표면 코팅 방법을 제공하기 위해 코팅액 조합(S100), 코팅액 교반(S110), 코팅액 정제(S120), 금형 표면 코팅(S130), 마스킹제거(S140), 소성준비(열처리)(S150) 및 소성(열처리)(S160)가 포함된다.
상기와 같이 구성된 본 발명은 미세 나노 세라믹 분자를 스프레이 분사 고착 방식으로 구성요소 표면에 매우 균일하고 견고하며 고강도, 고밀도의 코팅막을 제공하여 우수한 내식성, 내열성, 내후성, 내구성을 유지하고 마찰계수를 극도로 낮추는 효과를 제공하고, 이로 인해 금형 제품의 품질과 신뢰성을 대폭 향상시킬 수 있도록 한 것이다.The present invention relates to a mold surface coating method and mold products.
For this purpose, the present invention provides a method for coating the surface of a mold, combining coating solution (S100), stirring the coating solution (S110), refining the coating solution (S120), coating the mold surface (S130), removing masking (S140), and preparing for firing ( Heat treatment) (S150) and sintering (heat treatment) (S160) are included.
The present invention, constructed as described above, provides a very uniform, strong, high-strength, and high-density coating film on the surface of the component by spraying and fixing fine nano-ceramic molecules, maintaining excellent corrosion resistance, heat resistance, weather resistance, and durability, and maintaining an extremely high coefficient of friction. It provides a reduction effect, thereby significantly improving the quality and reliability of mold products.
Description
본 발명의 실시예는 금형 표면 코팅 방법 및 금형 제품에 관한 것으로, 보다 상세하게는 미세 나노 세라믹 분자를 스프레이 분사 고착 방식으로 구성요소 표면에 매우 균일하고 견고하며 고강도, 고밀도의 코팅막을 제공하여 우수한 내식성, 내열성, 내후성, 내구성을 유지하고 마찰계수를 극도로 낮추는 효과를 제공하고, 이로 인해 금형 제품의 품질과 신뢰성을 대폭 향상시킬 수 있도록 한 것이다.An embodiment of the present invention relates to a mold surface coating method and a mold product. More specifically, a very uniform, strong, high-strength, high-density coating film is provided on the surface of the component by spraying and fixing fine nano-ceramic molecules, thereby providing excellent corrosion resistance. , it maintains heat resistance, weather resistance, and durability, and provides the effect of extremely lowering the coefficient of friction, thereby significantly improving the quality and reliability of mold products.
본 명세서에서 달리 표시되지 않는 한, 이 식별항목에 설명되는 내용들은 이 출원의 청구항들에 대한 종래 기술이 아니며, 이 식별항목에 기재된다고 하여 종래 기술이라고 인정되는 것은 아니다.Unless otherwise indicated herein, the matters described in this identification are not prior art to the claims of this application, and are not admitted to be prior art by being described in this identification.
주지하다시피 일반적인 금형 표면 코팅 기술은 전해와 무전해, 도금과 테프론코팅, 카본코팅 및 플라즈마 진공 코팅 등이 있다.As you know, common mold surface coating technologies include electrolytic and electroless coating, plating and Teflon coating, carbon coating, and plasma vacuum coating.
상기 금형 표면 코팅에 의해 생산되는 플라스틱은 저비용으로 대량생산에 유리하고, 가벼우며, 다양한 물성을 구현할 수 있기 때문에 국내외 산업을 주도하고 있는 대부분의 제품에서 핵심소재로 활용되고 있다. 그 중에서 가장 많은 성형품이 사출성형법에 의하여 생산되고 있다. 특히, 플라스틱 제품의 고급화와 다기능화 추세에 따라 자동차, 휴대폰, 가전뿐만 아니라 선박, 항공 및 건축 내외장재에 이르기까지 고광택, 다양한 색상구현 등 외관 중심의 제품 디자인에서 더 나아가 질감 및 촉감을 포함하는 고감성, 그리고 전자파 차단, 내스크래치성, 내화학성, 내후성 등 다양한 기능성을 구현하기 위하여 플라스틱 표면에 대한 코팅의 중요성이 더욱 커지고 있다.Plastic produced by the mold surface coating is advantageous for mass production at low cost, is light, and can realize various physical properties, so it is used as a core material in most products leading domestic and foreign industries. Among them, most molded products are produced by injection molding. In particular, with the trend toward high-end and multi-functional plastic products, not only automobiles, mobile phones, and home appliances, but also interior and exterior materials for ships, aircraft, and buildings are moving beyond appearance-centered product design, such as high gloss and various colors, to highly sensitive products that include texture and touch. , and the importance of coating on plastic surfaces is increasing to realize various functionalities such as electromagnetic wave blocking, scratch resistance, chemical resistance, and weather resistance.
그러나 사출 성형 제품의 표면을 보호하고, 외관 품질, 광택, 내스크래치성, 내구성, 내후성 등을 향상시키기 위하여 대부분 모재가 되는 제품의 성형이 완료된 후 별도의 공정이 요구되는 문제점이 있다.However, in order to protect the surface of the injection molded product and improve its appearance quality, gloss, scratch resistance, durability, weather resistance, etc., there is a problem that a separate process is required after the molding of the product, which is mostly the base material, is completed.
특히 상기 종래 기술은 사출되는 사출품에 백화(whitening), 고스트 마크(ghost mark), 가스 마크(gas mark), 스크래치(scratch) 등의 많은 결함이 있어 도료를 도장함으로써 사출품의 결함을 커버하고 있다. 이러한 도장 부품의 경우, 외관 품질 개선 및 다양한 색상, 질감 구현이 가능하여 많은 부품에 적용되고 있으나 원가 상승이 되는 문제점이 있다.In particular, in the prior art, the injection product has many defects such as whitening, ghost marks, gas marks, and scratches, so the defects of the injection product are covered by applying paint. there is. In the case of these painted parts, it is possible to improve the appearance quality and realize various colors and textures, so they are applied to many parts, but there is a problem of increasing the cost.
아울러 운송 수단에 사용되는 플라스틱 부품의 경우 다양한 패턴이나 무늬를 금형에 엠보 가공처리하여 다양한 질감과 디자인을 부여하고 있는데 사출품의 형상이나 사출 게이트의 위치 등에 따라 앞서 언급한 여러 문제점이 발생하고 있다.In addition, in the case of plastic parts used in transportation, various textures and designs are given by embossing various patterns or patterns into molds. However, various problems mentioned above occur depending on the shape of the injection product or the location of the injection gate.
상기한 문제점을 해결하기 위해 종래에는 아래와 같은 선행기술문헌들이 개발되었으나, 여전히 상기한 종래 기술의 문제점을 일거에 해결하지 못하는 커다란 문제점이 발생 되었다.In order to solve the above-mentioned problems, the following prior art documents have been developed, but there is still a big problem that the problems of the above-described prior art cannot be solved at once.
본 발명은 상기와 같은 종래 기술의 제반 문제점을 해소하기 위하여 안출한 것으로, 코팅액 조합, 코팅액 교반, 코팅액 정제, 금형 표면 코팅, 마스킹제거, 소성준비(열처리) 및 소성(열처리)가 포함됨을 제1목적으로 한 것이고, 상기한 기술적 구성에 의한 본 발명의 제2목적은 미세 나노 세라믹 분자를 스프레이 분사 고착 방식으로 구성요소 표면에 매우 균일하고 견고하며 고강도, 고밀도의 코팅막을 제공하여 우수한 내식성, 내열성, 내후성, 내구성을 유지하고 마찰계수를 극도로 낮추는 효과를 제공하고, 제3목적은 금형의 표면 질감을 얻기 위해 텍스처링(texturing)을 진행 후 금형표면 보호가 필요하고 부식 위험이 높은 경우 금형보호 및 사출조건 향상을 위해 금형 표면에 코팅을 적용하여 부식방지 기능은 물론 생산되는 제품의 고품질의 질감을 얻을 수 있도록 한 것이고, 제4목적은 사출되는 사출품에 백화(whitening), 고스트 마크(ghost mark), 가스 마크(gas mark), 스크래치(scratch) 등을 개선하는 효과를 제공하고, 제5목적은 금형 수명연장, 무이형제 취출, 사출금형 표면의 내마모 내식성 및 윤활성을 향상시키고, 사출금형의 표면개질, 복잡한 구조의 사출금형에 적합한 장점이 있고, 제6목적은 무독성 세라믹 소재로 사출 성형시 오염이 없이 식품 용기를 제조하는 고정에 유리하고, 제7목적은 기존의 식기재료 등 제조에 이형제를 사용하는 사출제작 방식에 비해서 우수한 경쟁력을 확보할 수 있고, 제8목적은 균일한 두께와 우수한 밀착력으로 필링 및 치핑을 방지하는 효과를 제공하고, 제9목적은 면적이 넓은 제품의 표면 균일 광택 및 색도를 유지시킬 수 있도록 한 것이고, 제10목적은 긁힘 없이 붙지 않고 빠르고 효율적으로 배출시킬 수 있도록 한 것이고, 제11목적은 마찰을 크게 줄여 금형의 흐름을 빠르게 할 수 있도록 한 것이고, 제12목적은 이로 인해 금형 제품의 품질과 신뢰성을 대폭 향상시킬 수 있도록 한 금형 표면 코팅 방법 및 금형 제품을 제공한다.The present invention was devised to solve all the problems of the prior art as described above, and includes coating solution combination, coating solution stirring, coating solution purification, mold surface coating, masking removal, firing preparation (heat treatment), and firing (heat treatment). The purpose is to provide a very uniform, strong, high-strength, high-density coating film on the surface of the component by spraying and fixing fine nano-ceramic molecules, and the second object of the present invention based on the technical configuration described above is to provide excellent corrosion resistance, heat resistance, It maintains weather resistance and durability and provides the effect of extremely lowering the coefficient of friction. The third purpose is to protect the mold surface after texturing to obtain the surface texture of the mold, and when the risk of corrosion is high, mold protection and injection. To improve conditions, a coating was applied to the mold surface to prevent corrosion as well as obtain a high-quality texture of the produced product. The fourth purpose was to prevent whitening and ghost marks on the injection molded products. , provides the effect of improving gas marks, scratches, etc., and the fifth purpose is to extend the life of the mold, remove mold release agent, improve wear resistance and lubricity of the surface of the injection mold, and improve the surface of the injection mold. It has the advantage of being suitable for injection molds with modified and complex structures. The sixth purpose is to use non-toxic ceramic materials to manufacture food containers without contamination during injection molding, and the seventh purpose is to use mold release agents in the manufacture of existing tableware materials. It is possible to secure superior competitiveness compared to the injection manufacturing method used. The 8th purpose is to provide the effect of preventing peeling and chipping with uniform thickness and excellent adhesion, and the 9th purpose is to provide uniform surface gloss of products with a large area and The 10th purpose is to ensure that the chromaticity can be maintained, and the 10th purpose is to enable fast and efficient discharge without scratches or sticking, the 11th purpose is to significantly reduce friction to speed up the flow of the mold, and the 12th purpose is to As a result, we provide mold surface coating methods and mold products that can significantly improve the quality and reliability of mold products.
이러한 목적 달성을 위하여 본 발명은 금형 표면 코팅 방법에 관한 것으로, (a) 금형의 패턴 종류 광택에 따라 세라믹 코팅액을 조합하는 코팅액 조합단계(S100); (b) 패턴별로 조합된 코팅액을 자기회전 방식으로 교반작업을 진행하는 코팅액 교반단계(S110); (c) 나노세라믹 분자 입자 외에 이물질을 고밀도 필터를 이용하여 정제하여 고순도의 나노세라믹 분자만을 추출하는 코팅액 정제단계(S120); (d) 기본 광택 샌딩 작업이 완료된 금형의 평균 부식 깊이, 광택 및 색차를 측정하고(1단계), 금형의 표면 온도를 측정하고(2단계), 금형 형상에 따라 분사각도 및 분사거리 측정 및 이동간격 이동속도 공기압력 레이저 비접촉 거리 측정기를 분사장치 노즐헤드에 장착 거리확인(3단계), 금형 표면에 미세나노 세라믹 분자를 스프레이 분사 방식으로 코팅액을 분사 고착하고(4단계), 세라믹 코팅막 적층방법(5단계)에 따라 금형 표면을 코팅하는 단계(S130); (e) 코팅면 외에 마스킹을 내측에서 외측으로 벗겨 분리 제거하는 마스킹 제거단계(S140); (f) 나노세라믹 코팅 후 코팅층 강화 고착을 위한 소성(열처리) 준비단계(S150); 및 (g) 나노세라믹 코팅 후 코팅층 강화 고착을 위한 작업으로 코팅 종류에 따라 소성 작업하는 소성(열처리) 단계(S160);가 포함됨을 특징으로 하는 금형 표면 코팅 방법을 제공한다.In order to achieve this objective, the present invention relates to a mold surface coating method, which includes (a) a coating solution combining step (S100) of combining a ceramic coating solution according to the pattern type and gloss of the mold; (b) a coating liquid stirring step (S110) in which the coating liquid combined for each pattern is stirred using a magnetic rotation method; (c) a coating liquid purification step (S120) in which foreign substances other than nanoceramic molecular particles are purified using a high-density filter to extract only high-purity nanoceramic molecules; (d) Measure the average corrosion depth, gloss, and color difference of the mold for which basic gloss sanding work has been completed (step 1), measure the surface temperature of the mold (step 2), and measure and move the spray angle and spray distance according to the mold shape. Interval, moving speed, air pressure, laser, attach a non-contact distance measuring device to the spray nozzle head, check the distance (step 3), spray and fix the coating liquid on the mold surface by spraying fine nano ceramic molecules (step 4), and attach the ceramic coating layer (step 4). Coating the mold surface according to step 5 (S130); (e) a masking removal step (S140) of peeling and removing the masking from the inside to the outside in addition to the coated surface; (f) baking (heat treatment) preparation step for strengthening and adhering the coating layer after nanoceramic coating (S150); and (g) a firing (heat treatment) step (S160) of performing a firing operation according to the type of coating as an operation for strengthening and adhering the coating layer after nanoceramic coating.
또한 본 발명은 상기 금형 표면 코팅 방법으로 제조된 금형 제품을 제공한다.Additionally, the present invention provides a mold product manufactured by the above mold surface coating method.
상기에서 상세히 살펴본 바와 같이 본 발명은 코팅액 조합, 코팅액 교반, 코팅액 정제, 금형 표면 코팅, 마스킹제거, 소성준비(열처리) 및 소성(열처리)가 포함되는 것이다.As discussed in detail above, the present invention includes coating solution combination, coating solution stirring, coating solution purification, mold surface coating, masking removal, firing preparation (heat treatment), and firing (heat treatment).
상기한 기술적 구성에 의한 본 발명은 미세 나노 세라믹 분자를 스프레이 분사 고착 방식으로 구성요소 표면에 매우 균일하고 견고하며 고강도, 고밀도의 코팅막을 제공하여 우수한 내식성, 내열성, 내후성, 내구성을 유지하고 마찰계수를 극도로 낮추는 효과를 제공한다.The present invention based on the above-described technical structure provides a very uniform, strong, high-strength, and high-density coating film on the surface of the component by spraying and fixing fine nano-ceramic molecules, maintaining excellent corrosion resistance, heat resistance, weather resistance, and durability, and lowering the coefficient of friction. Provides an extremely reducing effect.
또한 본 발명은 금형의 표면 질감을 얻기 위해 텍스처링(texturing)을 진행 후 금형표면 보호가 필요하고 부식 위험이 높은 경우 금형보호 및 사출조건 향상을 위해 금형 표면에 코팅을 적용하여 부식방지 기능은 물론 생산되는 제품의 고품질의 질감을 얻을 수 있도록 한 것이다.In addition, the present invention requires protection of the mold surface after texturing to obtain the surface texture of the mold, and when the risk of corrosion is high, a coating is applied to the mold surface to protect the mold and improve injection conditions to provide corrosion prevention as well as production. This is to achieve high-quality texture of the product.
그리고 본 발명은 사출되는 사출품에 백화(whitening), 고스트 마크(ghost mark), 가스 마크(gas mark), 스크래치(scratch) 등을 개선하는 효과를 제공한다.In addition, the present invention provides the effect of improving whitening, ghost marks, gas marks, scratches, etc. in injection molded products.
또한 본 발명은 금형 수명연장, 무이형제 취출, 사출금형 표면의 내마모 내식성 및 윤활성을 향상시키고, 사출금형의 표면개질, 복잡한 구조의 사출금형에 적합한 장점이 있다.In addition, the present invention has the advantages of extending mold life, removing mold release agents, improving wear and corrosion resistance and lubricity of the injection mold surface, modifying the surface of injection molds, and being suitable for injection molds with complex structures.
그리고 본 발명은 무독성 세라믹 소재로 사출 성형시 오염이 없이 식품 용기를 제조하는 고정에 유리하다.And the present invention is advantageous for manufacturing and fixing food containers without contamination during injection molding using non-toxic ceramic materials.
또한 본 발명은 기존의 식기재료 등 제조에 이형제를 사용하는 사출제작 방식에 비해서 우수한 경쟁력을 확보할 수 있다.In addition, the present invention can secure superior competitiveness compared to the existing injection manufacturing method that uses a mold release agent for manufacturing tableware materials, etc.
그리고 본 발명은 균일한 두께와 우수한 밀착력으로 필링 및 치핑을 방지하는 효과를 제공한다.And the present invention provides the effect of preventing peeling and chipping with uniform thickness and excellent adhesion.
특히 본 발명은 면적이 넓은 제품의 표면 균일 광택 및 색도를 유지시킬 수 있도록 한 것이다.In particular, the present invention makes it possible to maintain uniform surface gloss and chromaticity of products with a large area.
아울러 본 발명은 긁힘 없이 붙지 않고 빠르고 효율적으로 배출시킬 수 있도록 한 것이다.In addition, the present invention allows for quick and efficient discharge without scratching or sticking.
더하여 본 발명은 마찰을 크게 줄여 금형의 흐름을 빠르게 할 수 있도록 한 것이다.In addition, the present invention greatly reduces friction to speed up the flow of the mold.
본 발명은 상기한 효과로 인해 금형 제품의 품질과 신뢰성을 대폭 향상시킬 수 있도록 한 매우 유용한 발명인 것이다.The present invention is a very useful invention that can significantly improve the quality and reliability of mold products due to the above-described effects.
이하에서는 이러한 효과 달성을 위한 본 발명의 바람직한 실시 예를 첨부된 도면에 따라 상세히 설명하면 다음과 같다.Hereinafter, a preferred embodiment of the present invention for achieving these effects will be described in detail according to the attached drawings.
도 1 은 본 발명에 적용된 금형 표면 코팅 방법의 흐름도.
도 2 는 코팅막 작용 원리를 설명한 도면으로,
(a)는 종래 기술을 표현한 것이고,
(b)는 본 발명을 표현한 것이다.
도 3 은 본 발명에 적용된 금형 표면 코팅 방법을 적용한 사례로, 금형 제품
의 코팅 전, 후의 제품 사진.1 is a flow chart of a mold surface coating method applied to the present invention.
Figure 2 is a diagram explaining the principle of operation of the coating film,
(a) represents the prior art,
(b) expresses the present invention.
Figure 3 is an example of applying the mold surface coating method applied to the present invention, and is a mold product
Photos of the product before and after coating.
본 발명에 적용된 금형 표면 코팅 방법 및 금형 제품은 도 1 내지 도 3 에 도시된 바와 같이 구성되는 것이다.The mold surface coating method and mold product applied to the present invention are configured as shown in FIGS. 1 to 3.
하기에서 본 발명을 설명함에 있어, 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명은 생략할 것이다.In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.
그리고 후술되는 용어들은 본 발명에서의 기능을 고려하여 설정된 용어들로서 이는 생산자의 의도 또는 관례에 따라 달라질 수 있으므로 그 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.In addition, the terms described below are terms established in consideration of the functions in the present invention, and may vary depending on the intention or custom of the producer, so their definitions should be made based on the content throughout the specification.
또한 도면에서 나타난 각 구성의 크기 및 두께는 설명의 편의를 위해 임의로 나타내었으므로, 본 발명이 반드시 도면에 도시된 바에 한정되지 않는다.In addition, since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, the present invention is not necessarily limited to what is shown in the drawings.
먼저, 본 발명은 금형 표면 코팅 방법을 제공하기 위해 코팅액 조합(S100), 코팅액 교반(S110), 코팅액 정제(S120), 금형 표면 코팅(S130), 마스킹제거(S140), 소성준비(열처리)(S150) 및 소성(열처리)(S160)가 포함된다.First, in order to provide a mold surface coating method, the present invention includes coating solution combination (S100), coating solution stirring (S110), coating solution purification (S120), mold surface coating (S130), masking removal (S140), and firing preparation (heat treatment) ( S150) and firing (heat treatment) (S160) are included.
특히 상기 코팅액 조합단계(S100)에서의 주재료는 미세나노 세라믹이고 여기에 부재료인 잔량의 미세한 산화알루미늄과 실록산이 함께 포함되어 세라믹 코팅액이 이루어지도록 함이 바람직하다.In particular, it is preferable that the main material in the coating solution mixing step (S100) is fine nano-ceramic and that the remaining amounts of fine aluminum oxide and siloxane as auxiliary materials are included to form a ceramic coating solution.
한편 본 발명은 상기의 구성부를 적용함에 있어 다양하게 변형될 수 있고 여러 가지 형태를 취할 수 있다.Meanwhile, the present invention can be variously modified and take various forms when applying the above-mentioned components.
그리고 본 발명은 상기의 상세한 설명에서 언급되는 특별한 형태로 한정되는 것이 아닌 것으로 이해되어야 하며, 오히려 첨부된 청구범위에 의해 정의되는 본 발명의 정신과 범위 내에 있는 모든 변형물과 균등물 및 대체물을 포함하는 것으로 이해되어야 한다.And it should be understood that the present invention is not limited to the particular form mentioned in the above detailed description, but rather includes all modifications, equivalents and substitutes within the spirit and scope of the present invention as defined by the appended claims. It should be understood as
상기와 같이 구성된 본 발명 금형 표면 코팅 방법 및 금형 제품의 작용효과를 설명하면 다음과 같다.The effects of the mold surface coating method and mold product of the present invention configured as described above are explained as follows.
우선, 본 발명은 미세 나노 세라믹 분자를 스프레이 분사 고착 방식으로 구성요소 표면에 매우 균일하고 견고하며 고강도, 고밀도의 코팅막을 제공하여 우수한 내식성, 내열성, 내후성, 내구성을 유지하고 마찰계수를 극도로 낮추는 효과를 제공한다.First, the present invention provides a very uniform, strong, high-strength, and high-density coating film on the surface of the component by spraying and fixing fine nano-ceramic molecules, maintaining excellent corrosion resistance, heat resistance, weather resistance, and durability, and extremely lowering the coefficient of friction. provides.
이를 위해 본 발명에 적용된 도 1 은 금형 표면 코팅 방법의 흐름도이다.For this purpose, Figure 1 is a flow chart of a mold surface coating method applied to the present invention.
그리고 도 2 는 코팅막 작용 원리를 설명한 도면으로, (a)는 종래 기술을 표현한 것이고, (b)는 본 발명을 표현한 것이다.And Figure 2 is a diagram explaining the principle of operation of the coating film, where (a) represents the prior art and (b) represents the present invention.
즉, 상기 도 2(a)는 상/하형 몰드의 마찰계수차이가 발생한 것을 도시한 것으로, V1<V2에 의해 가스 발생 고임과 역류가 발생하고 마찰계수 증대로 인해 가스가 질감표면에 적체되는 문제가 발생 되었다.That is, Figure 2(a) shows the difference in friction coefficient between the upper and lower molds, and V1 < V2 causes gas generation and backflow, and the problem of gas accumulating on the textured surface due to the increase in friction coefficient. occurred.
그러나 상기 도 2(b)는 상형 부식 가공면에 코팅적용으로 마찰계수가 저하되는 것을 보인 것으로, V1=V2에 의해 가스의 원활한 배출에 의해 마찰계수가 감소되어 결국 선명한 질감표면을 얻을 수 있게 된다.However, Figure 2(b) shows that the friction coefficient is lowered by applying a coating to the upper mold corrosion processing surface, and the friction coefficient is reduced by smooth discharge of gas by V1 = V2, ultimately making it possible to obtain a clear textured surface. .
이하에서 본 발명 금형 표면 코팅 방법을 보다 구체적으로 설명하면 다음과 같다.Hereinafter, the mold surface coating method of the present invention will be described in more detail as follows.
먼저, 본 발명은 (a) 금형의 패턴 종류 광택에 따라 세라믹 코팅액을 조합하는 코팅액 조합단계(S100)를 거친다.First, the present invention goes through (a) a coating solution combination step (S100) in which ceramic coating solutions are combined according to the pattern type and gloss of the mold.
이때 상기 코팅액 조합단계에서의 주재료는 미세나노 세라믹이고 여기에 부재료인 잔량의 미세한 산화알루미늄과 실록산이 함께 포함되어 세라믹 코팅액이 이루어지도록 함이 바람직하다.At this time, the main material in the coating solution mixing step is fine nano ceramic, and it is preferable that the remaining amounts of fine aluminum oxide and siloxane as secondary materials are included to form a ceramic coating solution.
그리고 본 발명은 (b) 패턴별로 조합된 코팅액을 자기회전 방식으로 교반작업을 진행하는 코팅액 교반단계(S110)를 거친다.In addition, the present invention goes through a coating solution stirring step (S110) in which (b) the coating solution combined for each pattern is stirred using a magnetic rotation method.
이때 상기 코팅액 교반단계는 30분 이상 진행함이 바람직하다.At this time, the coating liquid stirring step is preferably performed for more than 30 minutes.
또한 본 발명은 (c) 나노세라믹 분자 입자 외에 이물질을 고밀도 필터를 이용하여 정제하여 고순도의 나노세라믹 분자만을 추출하는 코팅액 정제단계(S120)를 거친다.In addition, the present invention goes through (c) a coating solution purification step (S120) in which foreign substances other than nanoceramic molecular particles are purified using a high-density filter to extract only high-purity nanoceramic molecules.
그리고 본 발명은 (d) 기본 광택 샌딩 작업이 완료된 금형의 평균 부식 깊이, 광택 및 색차를 측정하고(1단계), 금형의 표면 온도를 측정하고(2단계), 금형 형상에 따라 분사각도 및 분사거리 측정 및 이동간격 이동속도 공기압력 레이저 비접촉 거리 측정기를 분사장치 노즐헤드에 장착 거리확인(3단계), 금형 표면에 미세나노 세라믹 분자를 스프레이 분사 방식으로 코팅액을 분사 고착하고(4단계), 세라믹 코팅막 적층방법(5단계)에 따라 금형 표면을 코팅하는 단계(S130)를 거친다.In addition, the present invention (d) measures the average corrosion depth, gloss, and color difference of the mold on which the basic gloss sanding work has been completed (step 1), measures the surface temperature of the mold (step 2), and sprays the spray angle and minute according to the mold shape. Distance measurement and movement interval movement speed air pressure laser Install a non-contact distance measuring device on the nozzle head of the injection device to check the distance (step 3), spray and fix the coating liquid on the mold surface by spraying fine nano ceramic molecules (step 4), and fix the ceramic The mold surface is coated (S130) according to the coating film stacking method (step 5).
이때 상기 2단계의 금형의 표면 온도를 측정하는 것은 실온 20~24℃가 바람직하다.At this time, the surface temperature of the mold in the second step is preferably measured at a room temperature of 20 to 24°C.
즉, 금형 표면 온도가 20℃ 이하 저온일 경우 코팅액이 금형 표면에 밀착 고정되지 않고 분리되고, 금형 표면 온도가 24℃ 이상 고온일 경우 코팅액이 표면에 분사와 동시에 속건성이 발생되어 표면 불안정 안착으로 코팅막 균일도와 평활도가 감소하며 표면 요청화 현상이 발생되기 때문에 상기 온도는 실온 20~24℃가 바람직하다.In other words, if the mold surface temperature is below 20℃, the coating liquid is not tightly fixed to the mold surface and separates, and if the mold surface temperature is high above 24℃, the coating liquid dries quickly upon spraying on the surface, causing unstable surface settlement and the coating film. Since uniformity and smoothness decrease and the surface becomes thicker, the temperature is preferably 20 to 24°C at room temperature.
그리고 금형 형상에 따라 분사각도 및 분사거리 측정 및 이동간격 이동속도 공기압력 레이저 비접촉 거리 측정기를 분사장치 노즐헤드에 장착 거리 확인하는 3단계는 레이저 비접촉 거리 측정기를 분사장치 노즐 헤드와 일치하게 장착하여 45~50㎝의 거리 및 40도 각도를 유지함이 바람직하다.And according to the mold shape, the spraying angle and spraying distance are measured, the moving interval, the moving speed, air pressure, and the laser non-contact distance meter are installed on the spraying device nozzle head. The third step to check the distance is by installing the laser non-contact distance measuring device in line with the spraying device nozzle head. It is desirable to maintain a distance of ~50 cm and an angle of 40 degrees.
즉, 상기 45~50㎝의 거리는 코팅액이 금형표면에 적정량이 적층되도록 하기 위함이고, 상기 40도 각도는 금형 형상을 고려하여 분사량 및 적층 정도를 확인 후 이동방향 확인에 가장 적합하다.That is, the distance of 45 to 50 cm is to ensure that the coating liquid is deposited in an appropriate amount on the mold surface, and the 40 degree angle is most suitable for checking the direction of movement after checking the spray amount and degree of stacking in consideration of the mold shape.
이때 상기 이동간격은 세로 및 가로 등간격으로 5cm범위 40~50% 겹쳐지고, 1.5bar 노즐조리개 80% open으로 표면 코팅시 1회 열림으로 6cmx6cm에 1㎛ 코팅막 형성된다.At this time, the movement interval overlaps 40 to 50% in the 5 cm range at equal vertical and horizontal intervals, and when coating the surface with the 1.5 bar nozzle aperture 80% open, a 1 ㎛ coating film is formed on 6 cm x 6 cm by opening once.
그리고 상기 이동속도는 0.8 feet/sec 가로 및 세로 직선 이동, 속도가 빠를경우 Orange peel or Fish eye,Cratering(요철현상 및 구멍) 발생하고, 속도가 느릴경우 Sagging or Gelation(흐름 및 엉김) 발생한다.And the moving speed is 0.8 feet/sec horizontal and vertical straight movement. If the speed is fast, orange peel, fish eye, or cratering (irregularities and holes) occur, and if the speed is slow, sagging or gelation (flow and tangling) occurs.
또한 상기 공기압력은 1~1.5bar로 공기압력이 높을 경우 다량의 분진으로 금형 표면에 요철 현상 발생 주요원인이고, 공기압이 너무 낮을 경우 코팅면적이 좁아지고 불균일의 원인이된다.In addition, the air pressure is 1 to 1.5 bar. If the air pressure is high, a large amount of dust is the main cause of irregularities on the mold surface, and if the air pressure is too low, the coating area becomes narrow and causes unevenness.
또한 금형 표면에 코팅액을 분사 고착하는 것은 대형금형과 소형금형을 분류하여 대형의 경우 도장용 스프레이건을 소형의 경우 프라모델 에어브러쉬 스프레이건을 이용하여 코팅액을 분사하여 금형에 나노세라믹 코팅막을 적층하게 된다.In addition, spraying and fixing the coating liquid on the mold surface is divided into large molds and small molds. For large molds, a painting spray gun is used, and for small molds, the coating liquid is sprayed using a plastic model airbrush spray gun to lay a nanoceramic coating film on the mold. do.
한편, 본 발명은 (e) 코팅면 외에 마스킹을 내측에서 외측으로 벗겨 분리 제거하는 마스킹 제거단계(S140)를 거친다.Meanwhile, the present invention goes through (e) a masking removal step (S140) in which the masking is peeled off from the inside to the outside in addition to the coated surface.
또한 본 발명은 (f) 나노세라믹 코팅 후 코팅층 강화 고착을 위한 소성(열처리) 준비단계(S150)를 거친다.In addition, the present invention goes through (f) a firing (heat treatment) preparation step (S150) for strengthening and adhering the coating layer after nanoceramic coating.
이때 상기 소성(열처리) 준비단계에서 금형을 넣기 전에 소성(열처리) 룸의 실내온도는 30~40℃가 유지되도록 함이 바람직하다.At this time, it is desirable to maintain the indoor temperature of the firing (heat treatment) room at 30 to 40°C before placing the mold in the firing (heat treatment) preparation step.
그리고 본 발명은 (g) 나노세라믹 코팅 후 코팅층 강화 고착을 위한 작업으로 코팅 종류에 따라 소성 작업하는 소성(열처리) 단계(S160)를 거쳐 금형 표면 코팅 방법을 제공한다.In addition, the present invention provides a method of coating the surface of a mold through (g) a firing (heat treatment) step (S160) in which a firing operation is performed according to the type of coating as an operation for strengthening and adhering the coating layer after nanoceramic coating.
이때 상기 소성(열처리) 단계는 실내온도 30~40℃ 유지 후 금형 입고하여 코팅 종류에 따라 140~160℃ 온도로 3~4시간 소성(열처리)함이 바람직하다.At this time, in the firing (heat treatment) step, it is preferable to maintain the room temperature at 30 to 40°C, stock the mold, and bake (heat treat) at a temperature of 140 to 160°C for 3 to 4 hours depending on the type of coating.
특히 상기 온도가 기준 온도 이하 저온 입실시 코팅층의 박리현상이 발생되고, 상기 온도가 기준 온도 이상 고온 입실시 코팅층이 갈라지는 원인이 발생하기 때문에 상기 온도로 유지함이 바람직하다.In particular, when the temperature is lower than the reference temperature, peeling of the coating layer occurs, and when the temperature is higher than the reference temperature, the coating layer cracks. Therefore, it is preferable to maintain the above temperature.
본 발명은 상기 소성(열처리) 단계 이후 금형표면 온도 실온까지 강하 후 금형 표면의 코팅막 균열 또는 이물질을 확인 검사하는 금형 표면 검사단계(S170)가 포함됨이 바람직하다.The present invention preferably includes a mold surface inspection step (S170) of checking for cracks in the coating film or foreign substances on the mold surface after the mold surface temperature is lowered to room temperature after the firing (heat treatment) step.
또 한편, 본 발명에 적용된 상기 (d)의 5단계는 다음의 기술이 포함된다.On the other hand, step 5 of (d) applied to the present invention includes the following techniques.
먼저, 본 발명은 (1차) 에어압력 1.5bar 노즐조리개 80% open, 거리 45cm, 각도 40도, 가로방향 전개 등간격도포, 1차 나노세라믹코팅층 약 0.001~0.0015mm로 도포한다.First, the present invention (primary) is applied with an air pressure of 1.5 bar, nozzle aperture 80% open, distance of 45 cm, angle of 40 degrees, horizontal expansion at equal intervals, and a first nanoceramic coating layer of about 0.001 to 0.0015 mm.
이후 (2차) 에어압력 1.5bar, 노즐조리개 80% open, 거리 45cm, 각도 40도, 세로방향 전개 등간격도포, 2차후 나노세라믹코팅층 약 0.0015~0.002mm, 2차후 10분간 자연건조 실온 25도 유지한다.After (2nd time) air pressure 1.5 bar, nozzle aperture 80% open, distance 45cm, angle 40 degrees, vertically applied at equal intervals, nano ceramic coating layer about 0.0015~0.002mm after 2nd time, natural dry for 10 minutes after 2nd time, room temperature 25 degrees maintain
이어서 (3차) 에어압력 1bar, 노즐조리개 90% open, 거리 50cm, 각도 40도, 가로방향 전개 등간격도포, 3차후 나노세라믹코팅층 약 0.0025~0.003mm로 도포한다.Then (3rd time), air pressure is 1 bar, nozzle aperture is 90% open, distance is 50cm, angle is 40 degrees, horizontally spread, applied at equal intervals, and after 3rd time, nano ceramic coating layer is applied to about 0.0025~0.003mm.
이후 (4차) 에어압력 1bar 노즐조리개 90% open, 거리 50cm, 각도 40도, 세로방향 전개 등간격도포, 4차후 나노세라믹코팅층 약 0.003~0.0035mm로 도포한다.Afterwards (4th time) air pressure is 1 bar, nozzle aperture is 90% open, distance is 50cm, angle is 40 degrees, vertically spread and applied at equal intervals, after 4th time, nano ceramic coating layer is applied to about 0.003~0.0035mm.
이어서 (5차) 에어압력 1bar, 노즐조리개 100% open, 거리 50cm, 각도 40도, 가로 세로 양방방향 도포, 5차후 나노세라믹코팅층 약 0.004~0.0045mm로 도포한다.Subsequently (5th time), air pressure is 1 bar, nozzle aperture is 100% open, distance is 50cm, angle is 40 degrees, application is applied in both directions horizontally and vertically, and after the 5th time, nano ceramic coating layer is applied to about 0.004~0.0045mm.
또 한편, 상기 (g)의 소성(열처리) 단계(S160)는 다음의 기술 사상이 포함된다.On the other hand, the firing (heat treatment) step (S160) of (g) includes the following technical idea.
즉, 본 발명은 나노카본 탄소램프 중적외선 열처리 건조기를 사용하고, 열처리기 램프출력은 20kw이고, 열처리기 설치방식은 거리조절 방식을 사용하고, 초대형 금형의 경우 이동식 열처리기를 사용함이 바람직하다.That is, the present invention uses a nanocarbon carbon lamp mid-infrared heat treatment dryer, the heat treater lamp output is 20kw, the heat treater installation method uses a distance control method, and in the case of a very large mold, it is preferable to use a movable heat treater.
또 한편, 본 발명에 적용된 상기 (g)의 소성(열처리) 단계(S160)는 다음의 기술이 포함된다.On the other hand, the firing (heat treatment) step (S160) of (g) applied to the present invention includes the following technology.
먼저, 본 발명은 (1단계) 실내온도 100℃까지 열처리 건조기 거리 50cm, 근거리 집중 열처리소성 강화 1시간.First, the present invention (step 1) heat treatment dryer distance of 50cm to room temperature of 100℃, short-distance intensive heat treatment plastic strengthening for 1 hour.
이때 상기 1단계는 상하작동 무빙열처리 건조기 방식으로 초기 실온 상태의 금형의 표면 온도를 전체적으로 균일하게 온도를 올리기위해 50cm 유지하고, 거리가 유지되지 않을 경우 소성실내 온도 100℃이상 상승시간 동안 코팅층의 침전 또는 공기중 미세먼지 또는 부유물의 침범이 우려되기 때문에 근거리에서 코팅층 경화 및 강화를 시작하여 코팅 피막 안정화를 유지시킴이 바람직하다.At this time, the first stage is a vertical operation moving heat treatment dryer method, and the surface temperature of the mold at the initial room temperature is maintained at 50 cm to uniformly raise the overall temperature. If the distance is not maintained, the coating layer may settle during a time when the temperature in the firing room rises above 100°C. Alternatively, because there is a risk of invasion by fine dust or floating matter in the air, it is desirable to start hardening and strengthening the coating layer at a close range to maintain coating film stability.
이어서 (2단계) 실내온도 130℃ 이상 상승시 열처리 건조기 80~100cm 이상 이동 전면 소성 열처리 작업 약1시간.Then (step 2) when the room temperature rises above 130℃, move the heat treatment dryer more than 80~100cm and perform full-scale plastic heat treatment for about 1 hour.
이때 상기 2단계는 실내온도 130℃이상 유지시 금형으로부터 건조기를 80~100cm 이동하여 금형온도가 고열이 되는 것을 방지하는 것으로 이는 금형 고열시 코팅층 갈라짐(Crack) 발생 요인을 방지하기 위함이다.At this time, in the second step, when the room temperature is maintained above 130°C, the dryer is moved 80 to 100 cm from the mold to prevent the mold temperature from becoming high. This is to prevent the occurrence of cracks in the coating layer when the mold temperature is high.
이후 (3단계) 실내온도 160℃ 도달후 소성 열처리 안정화 1시간.Afterwards (step 3), after reaching the room temperature of 160℃, stabilize the plastic heat treatment for 1 hour.
이어서 (4단계) 금형표면에 나노세라믹코팅 완전 고착 및 경화와 강화 안정을 위해 열처리 건조기 전원 off 후 소성실(열처리실)에서 서서히 냉각 및Next (step 4), in order to completely fix the nanoceramic coating on the mold surface and stabilize the hardening and strengthening, turn off the heat treatment dryer and gradually cool it in the firing room (heat treatment room).
이후 (5단계) 소성실(열처리실) 내부 온도가 30~40℃까지 강하 후 문을 개방하고 나노세라믹 코팅막의 품질을 확인한다.Afterwards (Step 5), the temperature inside the firing room (heat treatment room) drops to 30~40℃, then the door is opened and the quality of the nanoceramic coating film is checked.
한편, 도 3 은 본 발명에 적용된 금형 표면 코팅 방법을 적용한 사례로, 금형 제품의 코팅 전, 후의 제품 사진이다.Meanwhile, Figure 3 is an example of applying the mold surface coating method applied in the present invention, and is a photo of the mold product before and after coating.
상기 코팅 적용 사례는 대형 TV의 배면 사출 성형 제품으로 코팅 전에는 표면이 거칠고 광택 및 색도가 저조하나, 본 발명을 적용한 코팅 후에는 단일 색상의 균일 색도를 유지하여 색차 일관성과 제품의 균일 광택을 보전하여 결과적으로 표면이 매끄럽고 광택 및 색도가 선명한 결과를 얻게 되었다.The above coating application example is a back injection molded product of a large TV. Before coating, the surface is rough and has low gloss and chromaticity, but after coating with the present invention, uniform chromaticity of a single color is maintained, thereby preserving color difference consistency and uniform gloss of the product. As a result, the result was a smooth surface with clear gloss and chromaticity.
이상에서와 같이 본 발명은 미세 나노 세라믹 분자를 스프레이 분사 고착 방식으로 구성요소 표면에 매우 균일하고 견고하며 고강도, 고밀도의 코팅막을 제공하여 우수한 내식성, 내열성, 내후성, 내구성을 유지하고 마찰계수를 극도로 낮추는 효과를 제공하고, 금형의 표면 질감을 얻기 위해 텍스처링(texturing)을 진행 후 금형표면 보호가 필요하고 부식 위험이 높은 경우 금형보호 및 사출조건 향상을 위해 금형 표면에 코팅을 적용하여 부식방지 기능은 물론 생산되는 제품의 고품질의 질감을 얻을 수 있도록 한 것이고, 사출되는 사출품에 백화(whitening), 고스트 마크(ghost mark), 가스 마크(gas mark), 스크래치(scratch) 등을 개선하는 효과를 제공하고, 금형 수명연장, 무이형제 취출, 사출금형 표면의 내마모 내식성 및 윤활성을 향상시키고, 사출금형의 표면개질, 복잡한 구조의 사출금형에 적합한 장점이 있다.As described above, the present invention provides a very uniform, strong, high-strength, and high-density coating film on the surface of the component by spraying and fixing fine nano-ceramic molecules, maintaining excellent corrosion resistance, heat resistance, weather resistance, and durability, and maintaining an extremely high coefficient of friction. If the mold surface needs to be protected after texturing to obtain the surface texture of the mold, and the risk of corrosion is high, a coating is applied to the mold surface to protect the mold and improve injection conditions to prevent corrosion. Of course, it is intended to achieve high-quality texture of the produced product, and provides the effect of improving whitening, ghost marks, gas marks, scratches, etc. in injection molded products. It has the advantages of extending mold life, removing mold release agents, improving wear and corrosion resistance and lubricity of the injection mold surface, modifying the surface of injection molds, and being suitable for injection molds with complex structures.
본 발명 금형 표면 코팅 방법 및 금형 제품의 기술적 사상은 실제로 동일결과를 반복 실시 가능한 것으로, 특히 이와 같은 본원발명을 실시함으로써 기술발전을 촉진하여 산업발전에 이바지할 수 있어 보호할 가치가 충분히 있다.The technical idea of the mold surface coating method and mold product of the present invention is that it is possible to repeat the same results in practice, and in particular, by implementing the present invention, it can promote technological development and contribute to industrial development, so it is worth protecting.
<도면의 주요 부분에 대한 부호의 설명>
S100: 코팅액 조합
S110: 코팅액 교반
S120: 코팅액 정제
S130: 금형 표면 코팅
S140: 마스킹제거
S150; 소성준비(열처리)
S160; 소성(열처리)<Explanation of symbols for main parts of the drawing>
S100: Coating liquid combination
S110: Stirring the coating liquid
S120: Coating liquid purification
S130: Mold surface coating
S140: Remove masking
S150; Preparation for firing (heat treatment)
S160; Firing (heat treatment)
Claims (5)
(a) 금형의 패턴 종류 광택에 따라 세라믹 코팅액을 조합하는 코팅액 조합단계(S100);
(b) 패턴별로 조합된 코팅액을 자기회전 방식으로 교반작업을 진행하는 코팅액 교반단계(S110);
(c) 나노세라믹 분자 입자 외에 이물질을 고밀도 필터를 이용하여 정제하여 고순도의 나노세라믹 분자만을 추출하는 코팅액 정제단계(S120);
(d) 기본 광택 샌딩 작업이 완료된 금형의 평균 부식 깊이, 광택 및 색차를 측정하고(1단계), 금형의 표면 온도를 측정하고(2단계), 금형 형상에 따라 분사각도 및 분사거리 측정 및 이동간격 이동속도 공기압력 레이저 비접촉 거리 측정기를 분사장치 노즐헤드에 장착 거리확인(3단계), 금형 표면에 미세나노 세라믹 분자를 스프레이 분사 방식으로 코팅액을 분사 고착하고(4단계), 세라믹 코팅막 적층방법(5단계)에 따라 금형 표면을 코팅하는 단계(S130);
(e) 코팅면 외에 마스킹을 내측에서 외측으로 벗겨 분리 제거하는 마스킹 제거단계(S140);
(f) 나노세라믹 코팅 후 코팅층 강화 고착을 위한 소성(열처리) 준비단계(S150); 및
(g) 나노세라믹 코팅 후 코팅층 강화 고착을 위한 작업으로 코팅 종류에 따라 소성 작업하는 소성(열처리) 단계(S160);가 포함되되,
상기 (g)의 소성(열처리) 단계(S160)는, 나노카본 탄소램프 중적외선 열처리 건조기를 사용하고, 열처리기 램프출력은 20kw이고, 열처리기 설치방식은 거리조절 방식을 사용하고, 초대형 금형의 경우 이동식 열처리기를 사용함을 특징으로 하는 금형 표면 코팅 방법.
Regarding the mold surface coating method,
(a) Coating solution combining step (S100) of combining ceramic coating solutions according to the pattern type and gloss of the mold;
(b) a coating liquid stirring step (S110) in which the coating liquid combined for each pattern is stirred using a magnetic rotation method;
(c) a coating liquid purification step (S120) in which foreign substances other than nanoceramic molecular particles are purified using a high-density filter to extract only high-purity nanoceramic molecules;
(d) Measure the average corrosion depth, gloss, and color difference of the mold for which basic gloss sanding work has been completed (step 1), measure the surface temperature of the mold (step 2), and measure and move the spray angle and spray distance according to the mold shape. Interval, moving speed, air pressure, laser, attach a non-contact distance measuring device to the spray nozzle head, check the distance (step 3), spray and fix the coating liquid on the mold surface by spraying fine nano ceramic molecules (step 4), and attach the ceramic coating layer (step 4). Coating the mold surface according to step 5 (S130);
(e) a masking removal step (S140) of peeling and removing the masking from the inside to the outside in addition to the coated surface;
(f) baking (heat treatment) preparation step for strengthening and adhering the coating layer after nanoceramic coating (S150); and
(g) A sintering (heat treatment) step (S160) of sintering according to the type of coating as an operation for strengthening and adhering the coating layer after nanoceramic coating;
The firing (heat treatment) step (S160) of (g) above uses a nanocarbon carbon lamp mid-infrared heat treatment dryer, the heat treater lamp output is 20 kw, the heat treater installation method uses a distance control method, and the ultra-large mold is used in the firing (heat treatment) step (S160). A mold surface coating method characterized by using a mobile heat treater.
상기 (d)의 5단계에는,
(1차) 에어압력 1.5bar 노즐조리개 80% open, 거리 45cm, 각도 40도, 가로방향 전개 등간격도포, 1차 나노세라믹코팅층 0.001~0.0015mm로 도포하고,
(2차) 에어압력 1.5bar, 노즐조리개 80% open, 거리 45cm, 각도 40도, 세로방향 전개 등간격도포, 2차후 나노세라믹코팅층 0.0015~0.002mm, 2차후 10분간 자연건조 실온 25도유지하고,
(3차) 에어압력 1bar, 노즐조리개 90% open, 거리 50cm, 각도 40도, 가로방향 전개 등간격도포, 3차후 나노세라믹코팅층 0.0025~0.003mm로 도포하고,
(4차) 에어압력 1bar 노즐조리개 90% open, 거리 50cm, 각도 40도, 세로방향 전개 등간격도포, 4차후 나노세라믹코팅층 0.003~0.0035mm로 도포하고,
(5차) 에어압력 1bar, 노즐조리개 100% open, 거리 50cm, 각도 40도, 가로 세로 양방방향 도포, 5차후 나노세라믹코팅층 0.004~0.0045mm로 도포함을 특징으로 하는 금형 표면 코팅 방법.
In claim 1,
In step 5 of (d) above,
(1st) Air pressure 1.5 bar, nozzle aperture 80% open, distance 45cm, angle 40 degrees, spread horizontally at equal intervals, apply 0.001~0.0015mm of 1st nano ceramic coating layer,
(2nd) Air pressure 1.5 bar, nozzle aperture 80% open, distance 45cm, angle 40 degrees, vertically spread, applied at equal intervals, nano ceramic coating layer 0.0015~0.002mm after 2nd, naturally dried for 10 minutes after 2nd, maintained at room temperature of 25 degrees ,
(3rd) Air pressure 1 bar, nozzle aperture 90% open, distance 50cm, angle 40 degrees, spread horizontally, applied at equal intervals, after 3rd, apply nano ceramic coating layer of 0.0025~0.003mm,
(4th) Air pressure 1 bar, nozzle aperture 90% open, distance 50cm, angle 40 degrees, vertically spread, applied at equal intervals, after 4th, apply nano ceramic coating layer of 0.003~0.0035mm,
(5th) Mold surface coating method characterized by air pressure of 1 bar, nozzle aperture 100% open, distance of 50cm, angle of 40 degrees, application in both directions, horizontal and vertical, and nanoceramic coating layer of 0.004 to 0.0045mm applied after the 5th step.
상기 소성(열처리) 단계 이후 금형표면 온도 실온까지 강하 후 금형 표면의 코팅막 균열 또는 이물질을 확인 검사하는 금형 표면 검사단계(S170)가 더 포함됨을 특징으로 하는 금형 표면 코팅 방법.
In claim 1,
The mold surface coating method further includes a mold surface inspection step (S170) of checking for cracks or foreign substances in the coating film on the mold surface after lowering the mold surface temperature to room temperature after the firing (heat treatment) step.
상기 (g)의 소성(열처리) 단계(S160)는,
(1단계) 실내온도 100℃까지 열처리 건조기 거리 50cm, 근거리 집중 열처리소성 강화 1시간.
(2단계) 실내온도 130℃ 이상 상승시 열처리 건조기 80~100cm 이상 이동 전면 소성 열처리 작업 약1시간.
(3단계) 실내온도 160℃ 도달후 소성 열처리 안정화 1시간.
(4단계) 금형표면에 나노세라믹코팅 완전 고착 및 경화와 강화 안정을 위해 열처리 건조기 전원 off 후 소성실(열처리실)에서 서서히 냉각. 및
(5단계) 소성실(열처리실) 내부 온도가 30~40℃까지 강하 후 문을 개방하고 나노세라믹 코팅막의 품질을 확인함을 특징으로 하는 금형 표면 코팅 방법.
In claim 1,
In the firing (heat treatment) step (S160) of (g),
(Stage 1) Heat treatment up to room temperature 100℃, dryer distance 50cm, short-distance intensive heat treatment plastic strengthening for 1 hour.
(Step 2) When the room temperature rises above 130℃, move the heat treatment dryer more than 80~100cm and perform full-scale firing heat treatment for about 1 hour.
(Step 3) After reaching room temperature of 160℃, stabilization of sintering heat treatment takes 1 hour.
(Step 4) Turn off the heat treatment dryer and slowly cool in the firing room (heat treatment room) to completely adhere the nanoceramic coating to the mold surface and stabilize the hardening and strengthening. and
(Step 5) A mold surface coating method characterized by opening the door and checking the quality of the nanoceramic coating film after the temperature inside the firing chamber (heat treatment room) drops to 30-40℃.
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| KR101647678B1 (en) | 2013-11-22 | 2016-08-11 | 한국생산기술연구원 | Coating layer of hot and warm forging dies and method for surface treatment of hot and warm forging dies |
| KR101431148B1 (en) * | 2014-04-11 | 2014-08-19 | 주식회사 씨엔피인더스트리 | Method of preparing ceramic coating material for low temperature sintering and coated product using the same |
| KR101597791B1 (en) | 2014-10-08 | 2016-02-25 | 한국교통대학교산학협력단 | In-mold coating mold for simultaneous injection molding and surface coating and method thereof |
| EP3054027A1 (en) * | 2015-02-04 | 2016-08-10 | Fuji Kihan Co., Ltd | Method for enhancing adhesion of low-temperature ceramic coating |
| US20190233658A1 (en) * | 2018-01-30 | 2019-08-01 | Lam Research Corporation | Method to selectively pattern a surface for plasma resistant coat applications |
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| KR20210084135A (en) * | 2019-12-27 | 2021-07-07 | 아이원스 주식회사 | Coating method of base material by solution masking manner |
| KR20220074170A (en) * | 2020-11-27 | 2022-06-03 | 한미르 주식회사 | Method for manufacturing a high efficiency heating system using ceramic nano heating coating and a high efficiency heating system manufactured thereby |
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