KR100736595B1 - The manufacturing method of phophating treatment material for aluminium - Google Patents
The manufacturing method of phophating treatment material for aluminium Download PDFInfo
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- KR100736595B1 KR100736595B1 KR1020060024964A KR20060024964A KR100736595B1 KR 100736595 B1 KR100736595 B1 KR 100736595B1 KR 1020060024964 A KR1020060024964 A KR 1020060024964A KR 20060024964 A KR20060024964 A KR 20060024964A KR 100736595 B1 KR100736595 B1 KR 100736595B1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
Abstract
Description
본 발명은 알루미늄 소재의 화성피막 처리제의 제조방법에 관한 것으로서, 더욱 상세하게는 알루미늄 소재의 화성피막 처리를 할 때, 사용되는 화성피막 처리제 용액의 조성 및 처리 조건을 최적화함으로써, 알루미늄 소재의 화성피막 중량을 높이고, 피막의 밀착성 및 내식성, 내마모성을 향상시키는 알루미늄 소재의 화성피막 처리제의 제조방법에 관한 것이다. The present invention relates to a method for producing a chemical conversion coating agent of aluminum material, and more particularly, by optimizing the composition and processing conditions of the chemical conversion coating agent solution used when performing the chemical conversion coating of aluminum material, It is related with the manufacturing method of the chemical conversion film treatment agent of the aluminum material which raises a weight and improves adhesiveness, corrosion resistance, and abrasion resistance of a film.
종래의 화성피막 처리는 철강 소지 상에 아연도금을 한 후 내식성을 향상시키기 위하여 중크롬산 처리를 하거나, 전착 도장시 전착효율을 높이기 위하여 인산염피막 처리 등을 행하여 왔다. Conventional chemical coating treatments have been subjected to dichromic acid treatment to improve corrosion resistance after galvanizing steel substrates, or phosphate coating treatments to increase electrodeposition efficiency during electrodeposition coating.
그러나 최근에 자동차산업, 항공기산업, 전자 산업 등의 발전과 함께 알루미늄 재료의 사용이 급증함에 따라, 알루미늄 재료의 냉간 단조 가공성과 내마모성를 향상시키기 위한 표면 처리방법의 개발이 필요하게 되었고, 이에 따라 알루미늄 재료의 표면처리 방법이 급속도로 발전하고 있다. However, with the recent increase in the use of aluminum materials with the development of the automotive industry, the aircraft industry, the electronics industry, etc., it is necessary to develop a surface treatment method for improving the cold forging processability and wear resistance of aluminum materials. Surface treatment methods are rapidly developing.
이와 같은 알루미늄 재료의 냉간 단조 가공성 및 내마모성을 향상시키기 위 하여 전기분해 방법으로 알루미늄 표면을 산화시켜, 알루미늄 표면에 산화알루미륨(Al203)으로 된 부동태피막을 형성시켜주는 양극 산화피막 처리방법(Anodiying)과, 크롬산염을 함유한 용액 속에 알루미늄 재료를 침지시켜 일어나는 화학적 반응에 의하여 알루미늄 표면상에 크롬(Cr)을 주성분으로 하는 수십 Å(옹스트롱)단위의 얇은 피막을 형성시켜 주는 크롬산염 피복 처리방법(Chromate)이 알려져 있다. In order to improve the cold forging processability and wear resistance of the aluminum material, anodizing is performed by oxidizing the aluminum surface to form a passivation film made of aluminum oxide (Al203) on the aluminum surface (Anodiying). And a chromate coating treatment method for forming a thin film of tens of angstrom units mainly containing chromium (Cr) on an aluminum surface by a chemical reaction caused by immersing an aluminum material in a solution containing and chromate. (Chromate) is known.
그러나 이러한 양극 산화피막 처리방법 또는 크롬산염 피복 처리방법에 의해 얻어지는 피막은 모두 내식성 및 내마모성, 냉간 단조 가공성이 약한 단점이 있다. However, all of the coating films obtained by the anodizing treatment method or chromate coating treatment method are weak in corrosion resistance, abrasion resistance, and cold forging workability.
특히 크롬산염 피복 처리방법에 의하여 형성되는 크롬산염 피막은 소지 금속인 알루미늄의 순도에 매우 민감하여, 순수한 알루미늄에 대하여는 양호한 피막 처리를 얻을 수 있으나, 구리 및 실리콘 또는 기타 불순물이 함유되어 있는 알루미늄 소재의 경우에는 다이캐스팅 시의 조건이 민감하게 되고 또한 구리, 실리콘 또는 기타 불순물의 편석(Segregation)으로 인하여 피막 표면에 얼룩이 존재하게 되는 등 양호한 표면처리가 행하여지기 어려운 문제점이 있었다. In particular, the chromate coating formed by the chromate coating treatment method is very sensitive to the purity of aluminum, which is a base metal, so that a good coating treatment can be obtained for pure aluminum, but it is possible to obtain an aluminum coating containing copper, silicon or other impurities. In this case, there is a problem that a good surface treatment is difficult to be performed, such that the conditions at the time of die casting are sensitive and stains are present on the surface of the coating due to segregation of copper, silicon, or other impurities.
더구나 크롬산염 피막 처리공정 중, 표면의 산세 공정에서 질산과 불화수소의 혼합용액을 사용하는데, 이러한 혼합용액은 인체에 매우 유해하여 작업환경을 열화시킴과 동시에 취급이 까다로운 문제점이 있었다. Moreover, during the chromate coating process, a mixed solution of nitric acid and hydrogen fluoride is used in the pickling process on the surface, and this mixed solution is very harmful to the human body, deteriorating the working environment and at the same time difficult to handle.
상기와 같이 종래에 수행되고 있는 알루미늄 소재의 화성피막처리는 알루미늄 소재 표면에 형성된 스케일을 탈지 및 산세 공정 등으로 제거한 후 내식성을 향상시키기 위하여 화성피막 처리로서 중크롬산 처리를 하거나, 전착 도장 시 전착 효율을 높이기 위하여 인산염 또는 규산염을 화학 처리하여 피막을 입히고 중화 후 나트륨 비누를 도포하여 냉간 단조를 행하여 왔다.Conventional chemical conversion treatment of aluminum material as described above is to remove the scale formed on the surface of the aluminum material by degreasing and pickling process, etc. to improve the corrosion resistance, and to improve the electrodeposition efficiency when the electrochromic coating treatment, or electrodeposition coating In order to increase, forging has been performed by chemical treatment of phosphate or silicate, and after neutralization, sodium soap is applied to perform cold forging.
본 발명은 상기한 바와 같은 종래기술의 문제점을 해결하기 위하여 안출된 것으로서 이 발명의 목적은 알루미늄 소재의 화성피막 중량을 높이고, 피막의 밀착성을 우수하게 함으로서 우수한 내식성 및 내마모성을 부여하는 화성 피막 처리방법을 제공하는데 있다. The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to increase the chemical conversion weight of the aluminum material, and excellent adhesion of the coating film by giving excellent corrosion resistance and wear resistance method To provide.
이와 같은 목적을 달성하기 위하여 본 발명에서는 알루미늄 합금의 화성피막 처리방법에 있어서, 화성피막처리 공정에서 전처리 된 알루미늄 소재를 규불산소다 83.5~99.8 중량%, 아연화 0.2~16.5 중량%의 혼합물을 정제수에 1~10%농도로 희석, 용해하고, 70~95℃에서 2~10분간 담금 처리를 하여 화성피막처리를 하는 것을 특징으로 하는 알루미늄 소재의 화성피막 처리제의 제조방법을 제공한다. In order to achieve the above object, in the present invention, in the chemical conversion coating method of aluminum alloy, a mixture of 83.5 to 99.9 wt% of sodium silicate and 0.2-16.5 wt% of galvanized aluminum is pretreated in the chemical conversion coating process. Diluting and dissolving to 1 ~ 10% concentration, and immersion treatment for 2 to 10 minutes at 70 ~ 95 ℃ provides a method for producing a chemical conversion film of aluminum material, characterized in that the chemical treatment.
즉, 본 발명의 알루미늄 소재의 화성피막 처리방법은 다음과 같은 공정으로 이루어진다.That is, the chemical conversion film treatment method of the aluminum material of the present invention comprises the following steps.
알루미늄 소재의 화성피막 처리는 탈지, 2단 수세, 산 세정, 수세, 탕세, 화성피막, 수세, 중화, 금속윤활, 건조 공정으로 이루어지는 10여개의 공정이 순차적으로 수행되고 있으며, 각 공정별로 탱크 내에 해당 화학약품을 채워놓고 소재를 화학약품으로 채워진 탱크에 장입한 뒤 해당시간만큼 처리하고 완료되면 다음 공정 으로 이동시키며, 이러한 10여개의 공정이 완료되면 제품을 취출한다.For the chemical conversion treatment of aluminum material, about 10 processes including degreasing, two-stage washing, acid washing, washing, hot water washing, chemical coating, washing, neutralization, metal lubrication, and drying processes are sequentially performed. Fill the chemicals, load the material into the tank filled with chemicals, process it for the appropriate time and move to the next process when it is completed. When these 10 processes are completed, the product is taken out.
이러한 알루미늄 소재의 화성피막 처리 작업의 첫 번째 공정은 탈지(Degreasing) 공정으로서 알루미늄의 인장강도 및 내마모성, 유용성을 증가시킨 알루미늄 소지 금속제품의 표면을 알칼리 클리닝 또는 용매 클리닝 처리하여 소지 금속 표면에 묻어 있는 지방질, 표면 불순물 등을 제거하는 전 처리를 행한다. The first step of the chemical conversion coating process of aluminum material is degreasing process, in which the surface of aluminum-based metal products which increase tensile strength, abrasion resistance, and usability of aluminum is buried on the surface of the metal by alkali cleaning or solvent cleaning. Pretreatment is carried out to remove fat, surface impurities and the like.
냉간 단조 분야에서 가장 널리 이용되는 방법은 알카리 탈지이다. 알칼리 탈지제는 가격이 저렴하고, 한번 작업으로 모든 오염 물질을 제거할 수 있어서 효과적이며, 콘트롤하기가 쉬운 장점이 있다. The most widely used method in the field of cold forging is alkali degreasing. Alkaline degreasers have the advantage of being inexpensive, effective in removing all contaminants in one operation, and easy to control.
그러나 알칼리 탈지제는 반드시 검화 및 유화능력을 가져야 하고, 콜로이드 상으로 만드는 첨가제를 함유해야 하며, 또한 수세에서 모두 제거될 수 있어야 한다.Alkaline degreasing agents, however, must have saponification and emulsifying capacity, contain additives that make them colloidal, and must also be able to be removed from the wash.
알칼리 탈지제로 사용이 가능한 물질로서 기본적인 것은 알칼리 계면활성제 (Alkali Surface Active Agent)이다. 계면활성제(Surfactant)는 낮은 온도에서도 강력한 습윤성으로 인해 표면 장력을 감소시키며, 또한 뛰어난 유화능력과 분산 능력을 지닌다. 알카리 탈지제는 첫째, 열처리나 산 세정 과정에서 생성된 카본의 타고 남은 검댕(Burnt-on Carbon Smut)을 제거시킬 수 있어야 하고, 둘째, 그리스(Grease)와 오일을 제거시킬 수 있어야 하며, 셋째, 냉간 작업 후에 생성된 화성피막과 비누의 잔유물을 제거할 수 있어야 하므로, 알칼리 탈지제는 상기한 조건들을 만족시키는 것으로 선택해야 한다.Alkali Surface Active Agent is the basic material that can be used as alkali degreasing agent. Surfactants reduce surface tension due to strong wettability even at low temperatures, and also have excellent emulsifying and dispersing properties. Alkaline degreasing agents must first be able to remove burnt-on carbon smut from carbon produced during heat treatment or acid cleaning, and second, to remove grease and oil. Alkaline degreaser should be selected to satisfy the above conditions, since it should be possible to remove the residues of the chemical film and the soap produced after the operation.
탈지 공정 후에는 2단 수세를 거친 후 산 세정(Pickling) 공정을 수행한다. 열처리나 열간가공(Hot Forming)에 의해 제조된 알루미늄 소재의 표면에는 스케일(Scale)이 형성되는데, 이러한 스케일을 제거하기 위해서는, 공정에 투입하기 전에는 샷 블라스팅(Shot Blasting)을 수행하고, 공정에 투입되었다면 산 세정을 수행한다. 산 세정 공정에서 사용되는 처리 용액으로서 질산+불화수소혼합용액(혼합비 95 : 5) 또는, 질산 40~60중량%, 황산20~30중량% 및 순수 20~30중량% 조성인 혼합용액을 주로 사용한다. 이와 같은 혼합용액을 사용함으로써 양호한 산 세정에 의한 표면에칭 효과를 얻는다. 산 세정은 소지의 표면적을 증대하여 화성피막의 형성 및 피막중량을 높여 냉간 단조의 성형성을 높여주기 위해 필요한 것이다.After the degreasing process, two steps of water washing are performed, followed by an acid pickling process. Scales are formed on the surface of the aluminum material manufactured by heat treatment or hot forming. To remove such scales, shot blasting is performed before input to the process, and then injected into the process. If so, perform an acid wash. As the treatment solution used in the acid washing process, a nitric acid + hydrogen fluoride mixed solution (mixing ratio 95: 5) or a mixed solution composed of 40 to 60 wt% nitric acid, 20 to 30 wt% sulfuric acid, and 20 to 30 wt% pure water is mainly used. do. By using such a mixed solution, good surface etching effect by acid cleaning is obtained. Acid cleaning is necessary to increase the surface area of the body to increase the formation of the chemical film and the weight of the film to increase the formability of cold forging.
산 세정한 후에는 수세 및 탕세를 거치고 나서 화성피막 공정을 수행한다. 화성피막은 냉간 단조시 성형성을 증대시키고, 후 공정인 윤활공정에서 비누의 부착을 도와주는 역할을 한다. 화성피막 공정에서 사용되는 용액은 본 발명의 규불산소다 83.5~99.8 중량%, 아연화 0.2~16.5 중량%의 혼합물을 정제수에 1~10%농도로 희석, 용해하고, 70~95℃에서 2~10분간 담금하여 처리한다.After the acid wash, washing with water and hot water are performed followed by the chemical conversion process. Chemical coating increases the formability during cold forging and helps the adhesion of soap in the subsequent lubrication process. The solution used in the chemical conversion coating process is a mixture of 83.5 to 99.9 wt% of sodium silicate of the present invention, 0.2 to 16.5 wt% of zinc, diluted with purified water to a concentration of 1 to 10%, and dissolved at 2 to 10 at 70 to 95 ° C. Immerse for minutes.
화성피막처리를 한 다음에는 수세하고, 중화(Neutralising Rinse) 공정을 수행한다. 중화 공정은 후 공정인 윤활공정에서 금속비누의 효과를 증대하기 위해 처리하는 공정으로서, 중화 수세 시 사용되는 용액은 규칙적인 첨가에 의해 반드시 표시된 농도가 일정하게 유지되도록 해야 한다. 그러나 규칙적으로 약품을 첨가 할 지라도 중화수세는 점차적으로 오염되어 그 효력을 상실하며, After chemical treatment, it is washed with water and neutralized (Neutralising Rinse) process is performed. The neutralization process is a process to increase the effect of the metal soap in the subsequent lubrication process, the solution used for neutral water washing must be kept constant by the addition regularly. However, even with regular chemicals, neutralized water gradually becomes contaminated and loses its effectiveness.
따라서, 규칙적으로 용액을 폐기해야 한다. 일반적으로 1주일에 1번씩 재 건욕하는 것이 좋으며, 이와 같이 중화수세 용액을 잘 관리하는 것은 제품의 품질과 원가에 미치는 영향이 크므로 그 관리가 매우 중요하다.Therefore, the solution must be disposed of regularly. In general, it is better to re-bath once a week, and the management of this neutral washing solution is very important because it has a great effect on the quality and cost of the product.
중화공정 이후에는 금속윤활 공정을 수행한다. 콜드 헤딩(Cold Heading)의 경우, 반응성을 가진 비누로 싱글 홀 사이징(Single Hole Sizing) 혹은 캘리브레이션 패스(Calibration Pass)의 드로(Draw)에 필요한 윤활을 생성할 뿐 아니라, 계속해서 뒤따르는 다단계 헤딩을 위해 적당한 잔류 윤활제를 제공한다.After the neutralization process, a metal lubrication process is performed. In the case of cold heading, reactive soap not only produces the lubrication required for single hole sizing or the draw of a calibration pass, but also continues with the multi-level heading that follows. To provide a suitable residual lubricant.
금속비누는, 금형의 수명을 연장시키는 성분이 첨가되어 있으며, 이들 주성분은 높은 등급의 나트륨 스테아린산염 (Sodium Stearate), 부식방지제, 화성피막과의 반응을 촉진시키기 위한 반응 첨가제, 그리고 물의 경화를 극복하기 위한 염의 성분들로 구성된다. Metal soaps are added with components that extend the life of the mold, and these major components overcome high grade sodium stearate, preservatives, reaction additives to promote reaction with chemical coatings, and water hardening. It consists of the components of the salt for
상기와 같이 본 발명에서는 알루미늄 소재의 화성피막제의 제조방법(조성물)에 있어서, 그 조성물은 규불산소다 83.5~99.8 중량%, 아연화 0.2~16.5 중량%의 혼합물을 정제수에 1~10%농도로 희석, 용해하고, 70~95℃에서 2~10분간 담금하여 화성피막처리를 하는 것을 특징으로 하는 알루미늄 소재의 화성피막제 조성물을 제공한다. In the present invention as described above, in the method (composition) for producing a chemical conversion film of aluminum material, the composition is a mixture of 83.5 to 99.9% by weight of sodium silicate, 0.2 to 16.5% by weight zinc dilution to 1 to 10% concentration in purified water. It is melt | dissolved and immersed for 2-10 minutes at 70-95 degreeC, The chemical conversion coating composition of the aluminum material characterized by the above-mentioned.
아연화는 그 사용량이 0.2 중량%이하이면, 피막이 얇아지고, 16.5 중량%이상이면 피막이 너무 두꺼워 지고, 밀착성이 떨어지게 된다. 따라서 규불산소다의 함량은 아연화의 함량에 의해 그 반대 현상이 발생한다.When the amount of zincation is 0.2% by weight or less, the film becomes thin, and when 16.5% by weight or more, the film becomes too thick and the adhesion is inferior. Therefore, the content of sodium silicate is reversed by the content of zinc.
이하, 실시예와 비교예를 들어 본 발명을 상세히 설명하지만, 이는 본 발명을 한정하는 것은 아니다.Hereinafter, although an Example and a comparative example are given and this invention is demonstrated in detail, this does not limit this invention.
[실시예1-3과 비교예][Example 1-3 and Comparative Example]
하기 표 1에 기재된 양으로 본문에 기재된 공정과 같이 전 처리된 알루미늄 시편을 다음의 각 실시예의 조성에 따라 80℃에서 5분간 담금하여 처리하여 화성피막 처리 후, 중화하여 밀착성(Cross Cut Test)시험과 피막중량 측정을 행하고, 금속 윤활처리 공정을 거친 후 냉간 단조하여 단조물의 표면상태와 단조시의 윤활성을 관찰 및 평가하여 표 1을 만들었다.The aluminum specimens treated in the same manner as described in the main body in the amounts shown in Table 1 were immersed at 80 ° C. for 5 minutes according to the composition of each of the following examples, and then neutralized after crosslinking treatment. The film weight was measured, and after undergoing a metal lubrication process, cold forging was performed to observe and evaluate the surface condition of the forging and the lubricity at the time of forging.
[표 1]TABLE 1
*1 : 비교예 : * 1: Comparative example:
실시예와 같이 전 처리된 알루미늄 시편을 물 1ℓ당 황산크롬 3.0g, 중크롬산소다 20g, 가성소오다 100g의 비율로 된 처리액에 85℃의 온도에서 5분간 침지하여서 화성피막 처리를 행하고, 이후는 실시예와 동일한 조건으로 처리하여 화성피막 처리된 알루미늄 시편을 만들었다.As described in Example, the pretreated aluminum specimen was immersed in a treatment liquid containing a ratio of 3.0 g of chromium sulfate, 20 g of sodium dichromate, and 100 g of caustic soda at a temperature of 85 ° C. for 5 minutes. Treated under the same conditions as in Example to form a chemically treated aluminum specimen.
*2 : 부착성(Cross Cut Test, 100/100) : * 2: Adhesion (Cross Cut Test, 100/100):
화성피막의 표면을 칼로 가로 세로 1간격으로 모눈을 만든 후 스캇치 테이프로 부착하여 180도 방향으로 박리했을 때, 이탈되지 않은 모눈수를 숫자로 표시한다.When the grid is made on the surface of the chemical film with a knife horizontally and vertically, and then attached with Scotch tape and peeled in the direction of 180 degrees, the number of grids that do not deviate is indicated by numbers.
본 발명은 알루미늄 소재의 화성피막 처리제의 제조방법에 사용되는 화성피막 처리제 용액의 조성 및 처리 조건을 최적화함으로써, 알루미늄 소재의 화성피막 중량을 높이고, 피막의 밀착성 및 내식성, 내마모성을 향상시키는 효과가 있다.The present invention has the effect of optimizing the composition and treatment conditions of the chemical film treatment agent solution used in the method of manufacturing the chemical film treatment agent of aluminum material, thereby increasing the weight of the chemical film of the aluminum material, and improving the adhesion, corrosion resistance and wear resistance of the film. .
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