JPH04301082A - Chemical conversion treatment of aluminum metal plate with zinc phosphate - Google Patents
Chemical conversion treatment of aluminum metal plate with zinc phosphateInfo
- Publication number
- JPH04301082A JPH04301082A JP8948491A JP8948491A JPH04301082A JP H04301082 A JPH04301082 A JP H04301082A JP 8948491 A JP8948491 A JP 8948491A JP 8948491 A JP8948491 A JP 8948491A JP H04301082 A JPH04301082 A JP H04301082A
- Authority
- JP
- Japan
- Prior art keywords
- chemical conversion
- metal plate
- zinc phosphate
- aluminum
- conversion treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 40
- 239000000126 substance Substances 0.000 title claims abstract description 40
- 229910000165 zinc phosphate Inorganic materials 0.000 title claims abstract description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 27
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 title claims abstract description 27
- 238000011282 treatment Methods 0.000 title claims description 50
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000007654 immersion Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 18
- -1 aluminum ion Chemical class 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007921 spray Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 6
- 229910019142 PO4 Inorganic materials 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- 239000010452 phosphate Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000004070 electrodeposition Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000010422 painting Methods 0.000 description 4
- 238000007739 conversion coating Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- 229910001437 manganese ion Inorganic materials 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Chemical Treatment Of Metals (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明はアルミニウム系金属板、
具体的にはアルミニウム板及びアルミニウム合金板から
選ばれる１種又は２種の金属板のリン酸亜鉛系化成処理
方法に関するものであり、該金属板の表面に塗装後の耐
食性並びに塗膜密着性の優れたリン酸亜鉛系化成皮膜を
形成させるため、及び該金属板のプレス成型性を向上さ
せるための新規なリン酸亜鉛系化成処理方法に関するも
のである。[Industrial Application Field] The present invention relates to an aluminum metal plate,
Specifically, it relates to a zinc phosphate chemical conversion treatment method for one or two metal plates selected from aluminum plates and aluminum alloy plates, and is used to improve corrosion resistance and coating adhesion after painting on the surface of the metal plate. The present invention relates to a novel zinc phosphate chemical conversion treatment method for forming an excellent zinc phosphate chemical conversion coating and improving the press formability of the metal plate.
【０００２】0002
【従来技術】リン酸亜鉛系化成処理方法としては浸漬処
理及びスプレー処理が一般的な方法として知られている
が、最近は冷延鋼板及び鉄−亜鉛系合金めっき鋼板の塗
装性能向上を目的に浸漬処理が主流となっている。浸漬
処理並びにスプレー処理のそれぞれの処理条件について
は様々な工夫が成されており、例えば被処理物を振動さ
せながらリン酸塩処理する方法が■特公昭６０−４６１
８４号公報に、リン酸塩化成処理液で５〜３０秒スプレ
ーし、次いで１〜３０分浸漬する方法が■特開昭５２−
１１９４３５号公報に開示されている。[Prior Art] Dipping treatment and spray treatment are generally known as zinc phosphate chemical conversion treatment methods, but recently they have been used to improve the coating performance of cold-rolled steel sheets and iron-zinc alloy coated steel sheets. Immersion treatment is the mainstream. Various methods have been devised for the treatment conditions of immersion treatment and spray treatment. For example, a method of treating the object with phosphate while vibrating it is described in Japanese Patent Publication No. 60-461.
No. 84 discloses a method of spraying with a phosphate chemical treatment solution for 5 to 30 seconds and then soaking it for 1 to 30 minutes.
It is disclosed in Japanese Patent No. 119435.
【０００３】0003
【発明が解決しようとする課題】前記従来例■の攪拌条
件では、被処理金属が化成処理液へ入槽した後の攪拌が
弱いために、鉄系金属板に対しては良好なリン酸亜鉛系
皮膜の形成がなされるものの、アルミニウム系金属板に
対しては処理液中での攪拌強度の不足により皮膜形成速
度が著しく遅くなり、アルミニウム系金属板のプレス成
型性及び塗装性能のような諸性能を満足するに充分な化
成皮膜量が得られない。[Problems to be Solved by the Invention] Under the agitation conditions of the conventional example (2), since the agitation after the metal to be treated enters the chemical conversion treatment bath is weak, zinc phosphate, which is good for iron-based metal plates, cannot be used. However, due to insufficient stirring strength in the treatment liquid, the film formation rate is extremely slow for aluminum-based metal sheets, and various problems such as press formability and coating performance of aluminum-based metal sheets are affected. A sufficient amount of chemical conversion coating cannot be obtained to satisfy performance.
【０００４】又アルミニウム系金属板に対し、初期の処
理条件としてスプレー処理を適用する■の場合及び全処
理をスプレーで行った場合、攪拌条件が強すぎる為に均
一で緻密な皮膜形成が成されなくなり、塗装性能及びプ
レス成型性等の諸性能に対して好適なリン酸亜鉛系化成
皮膜を得ることが困難となる。[0004] Furthermore, in the case (2) in which spray treatment is applied as the initial treatment condition to an aluminum metal plate, or in the case where the entire treatment is carried out by spray, a uniform and dense film cannot be formed because the stirring conditions are too strong. This makes it difficult to obtain a zinc phosphate-based chemical conversion film that is suitable for various performances such as painting performance and press formability.
【０００５】[0005]
【課題を解決するための手段】前記従来例の問題点を解
決する具体的手段として本発明は、アルミニウム系金属
板の浸漬リン酸亜鉛系化成処理において、リン酸亜鉛系
化成処理液を該金属板に沿って１０〜５０ｍ／ｍｉｎの
相対速度で流動接触させることを特徴とするアルミニウ
ム系金属板のリン酸亜鉛系化成処理方法を提供するもの
である。[Means for Solving the Problems] As a specific means for solving the problems of the prior art, the present invention provides a method for applying a zinc phosphate-based chemical conversion treatment solution to the metal in the immersion zinc phosphate-based chemical conversion treatment of an aluminum-based metal plate. The present invention provides a zinc phosphate chemical conversion treatment method for an aluminum metal plate, which is characterized in that fluid contact is carried out along the plate at a relative speed of 10 to 50 m/min.
【０００６】[0006]
【作用】アルミニウム系金属板とリン酸塩化成処理液と
の接触において、相対流速を一定の範囲に保つことで、
接触面における皮膜形成に有害な溶出したアルミニウム
を反応系外に排出することで、良好な皮膜が形成できる
のである。[Function] By keeping the relative flow velocity within a certain range in the contact between the aluminum metal plate and the phosphate chemical treatment solution,
A good film can be formed by discharging the eluted aluminum, which is harmful to film formation on the contact surface, out of the reaction system.
【０００７】本発明における処理方法は、アルミニウム
系金属板の浸漬処理で、リン酸亜鉛系化成処理液との接
触の相対速度が、１０〜５０ｍ／ｍｉｎの範囲であるこ
とが好ましいものである。[0007] In the treatment method of the present invention, the aluminum metal plate is immersed, and the relative speed of contact with the zinc phosphate chemical conversion treatment liquid is preferably in the range of 10 to 50 m/min.
【０００８】アルミニウム系金属板に沿って流動するリ
ン酸亜鉛系化成処理液の流速、即ち相対速度が１０ｍ／
ｍｉｎを下回ると、該金属板に対する充分な化成性は得
られない。また相対速度が５０ｍ／ｍｉｎを越える場合
は、化成反応速度としてもはやそれ以上の向上は望めず
、また皮膜結晶はかえって粗大化し、プレス成型性及び
塗装性能を満足する均一緻密な皮膜形成が成されなくな
るのである。[0008] The flow velocity of the zinc phosphate chemical conversion treatment liquid flowing along the aluminum metal plate, that is, the relative velocity is 10 m/
If it is less than min, sufficient chemical conversion properties for the metal plate cannot be obtained. Furthermore, if the relative speed exceeds 50 m/min, no further improvement in the chemical conversion reaction rate can be expected, and the film crystals will instead become coarser, making it impossible to form a uniform and dense film that satisfies press formability and painting performance. It will disappear.
【０００９】又、本発明における相対速度とは、アルミ
ニウム系金属板に対する処理液の相対速度のことであり
、アルミニウム系金属板と処理液が逆方向に移動してい
る場合、同一方向に移動している場合及びどちらかが静
止している場合のいずれの場合でも、本発明に含まれる
ものである。[0009] In the present invention, the relative speed refers to the relative speed of the processing liquid to the aluminum-based metal plate, and when the aluminum-based metal plate and the processing liquid are moving in opposite directions, they are moving in the same direction. Both cases where one of the two is stationary and the case where one of the two is stationary are included in the present invention.
【００１０】尚、本発明に使用されるリン酸亜鉛系化成
処理液は、特にその組成を規定するものではないが、エ
ッチング剤、酸化剤及び皮膜形成における皮膜の供給源
としてリン酸イオン及び亜鉛イオンを含有し、また皮膜
の改質剤としてニッケルイオン及びマンガンイオンを含
有することが好ましい。そして、エッチング剤としては
フッ素イオン、酸化剤としては硝酸イオン及び亜硝酸イ
オンを用いることが好ましい。[0010] The composition of the zinc phosphate chemical conversion treatment liquid used in the present invention is not particularly specified, but it contains phosphate ions and zinc as an etching agent, an oxidizing agent, and a film supply source in film formation. ions, and preferably contains nickel ions and manganese ions as film modifiers. It is preferable to use fluorine ions as the etching agent, and nitrate ions and nitrite ions as the oxidizing agents.
【００１１】特に、アルミニウム系金属板をリン酸塩化
成処理した場合、リン酸アルミニウムの沈澱平衡ｐＨが
皮膜の主成分であるリン酸亜鉛結晶の沈澱平衡ｐＨより
も低いため、リン酸アルミニウムのバッファー作用によ
り、処理中のアルミニウム系金属表面のｐＨ上昇が緩和
され、充分な化成皮膜の形成が行われなくなる。つまり
、溶出したアルミニウムが反応系内に残存して化成皮膜
の形成を阻害するのである。In particular, when an aluminum-based metal plate is subjected to phosphate chemical conversion treatment, the precipitation equilibrium pH of aluminum phosphate is lower than the precipitation equilibrium pH of zinc phosphate crystals, which are the main component of the film. As a result, the pH increase on the surface of the aluminum metal during treatment is alleviated, and a sufficient chemical conversion film is not formed. In other words, the eluted aluminum remains in the reaction system and inhibits the formation of the chemical conversion film.
【００１２】よって、エッチングにより溶出したアルミ
ニウムイオンを攪拌又は処理液の相対流速によって速や
かに反応系外に拡散させて、リン酸アルミニウムのバッ
ファー作用を最小限度に抑えるようにするのである。[0012] Therefore, the aluminum ions eluted by etching are quickly diffused out of the reaction system by stirring or the relative flow rate of the processing solution, thereby minimizing the buffer action of aluminum phosphate.
【００１３】又、アルミニウム系金属板とリン酸亜鉛系
化成処理液との流動による接触の相対速度が一定の流動
条件を越えた場合、溶出したアルミニウムイオンの拡散
速度が著しく増して、処理されるべきアルミニウム系金
属板のエッチング量も増加してしまい、結局良好な皮膜
形成が出来なくなってしまう。[0013] Furthermore, when the relative speed of contact due to flow between the aluminum metal plate and the zinc phosphate chemical conversion treatment liquid exceeds a certain flow condition, the diffusion rate of the eluted aluminum ions increases significantly, and the treatment is completed. The amount of etching on the aluminum-based metal plate also increases, making it impossible to form a good film.
【００１４】つまり、化成処理における被処理物と処理
液との相対的な流動条件が強すぎる場合は、化成速度及
び性能の向上が望めないばかりでなく、化成皮膜結晶の
均一緻密化が損なわれ、例えばプレス成型性や塗装性能
といった諸性能を満足する皮膜形成が成されなくなるの
である。In other words, if the relative flow conditions between the object to be treated and the treatment liquid in chemical conversion treatment are too strong, not only can it not be expected to improve the conversion rate and performance, but also the uniform densification of the chemical conversion coating crystals will be impaired. For example, it becomes impossible to form a film that satisfies various performances such as press moldability and painting performance.
【００１５】[0015]
【実施例】次に、本発明に係る処理方法を理解するため
に、実際の処理について幾つかの具体的な実施例と比較
例とを挙げて説明する。EXAMPLES Next, in order to understand the processing method according to the present invention, actual processing will be described with reference to some specific examples and comparative examples.
【００１６】−供試鋼板及び処理方法−板厚１．０ｍｍ
のアルミニウム合金板（ＪＩＳ−５０５２）を図１に示
す処理装置を用いてリン酸亜鉛系化成処理した。処理し
た板は７０×１５０ｍｍに加工し、塗装性能試験を行っ
た。- Test steel plate and treatment method - Plate thickness 1.0 mm
An aluminum alloy plate (JIS-5052) was subjected to zinc phosphate chemical conversion treatment using the processing apparatus shown in FIG. The treated board was processed into a size of 70 x 150 mm, and a coating performance test was conducted.
【００１７】図１において、１は処理槽であり、該処理
槽内にリン酸亜鉛系化成処理液２を収納し、帯状のアル
ミニウム合金板３を一方の側から他方の側に複数のガイ
ドロール４を介して移送し、前記処理液２と接触させて
処理するものである。この場合に、処理液２は一方の側
からポンプ５で吸引し他方の側に設けたフローノズル６
から噴射させて、処理槽１内に一定の流れを形成するよ
うにしてある。In FIG. 1, reference numeral 1 denotes a treatment tank in which a zinc phosphate chemical conversion treatment liquid 2 is stored, and a strip-shaped aluminum alloy plate 3 is moved from one side to the other by a plurality of guide rolls. 4, and is brought into contact with the treatment liquid 2 for treatment. In this case, the processing liquid 2 is suctioned from one side by a pump 5 and passed through a flow nozzle 6 provided on the other side.
A constant flow is formed in the processing tank 1 by injecting the water from the tank 1.
【００１８】−電着塗装−
（１）電着塗装［ＨＢ２０００Ｌ（関西ペイント社製カ
チオン電着塗料）］
浴温：２８℃、電圧：２５０Ｖ、通電時間：１８０秒、
膜厚：２０μ
（２）水洗［水道水］ ２０秒 スプレー（３）脱
イオン水洗［脱イオン水（電導度：０．２μＳ／ｃｍ）
］
２０秒 スプレー
（４）焼付け １７５℃ ３０分-Electrodeposition coating- (1) Electrodeposition coating [HB2000L (cationic electrodeposition paint manufactured by Kansai Paint Co., Ltd.)] Bath temperature: 28°C, voltage: 250V, current application time: 180 seconds,
Film thickness: 20μ (2) Water washing [tap water] 20 seconds Spray (3) Deionized water washing [deionized water (conductivity: 0.2μS/cm)
] 20 seconds Spray (4) Baking 175℃ 30 minutes
【００１９】−塗装後の性能評価−
（１）耐水二次密着性試験
３コート塗装板を４０℃の脱イオン水に２４０時間浸漬
後、鋭利なカッターを用いて素地に達するように２．０
ｍｍ角のゴバン目を１００個切り、セロテープ剥離を行
った後のゴバン目剥離個数を評価した。
○：剥離個数０個
△：剥離個数１〜５個
×：剥離個数６個以上
（２）耐食性試験
塗装板に鋭利なカッターで素地に達するようにクロスス
クラッチを入れ、下記ａ．ｂ．のサイクルを５サイクル
繰り返し、サイクル後のクロススクラッチからの片側最
大膨れ幅を測定した。
片側最大膨れ幅
○：１．０ｍｍ未満
△：１．０〜２．０ｍｍ
×：２．１ｍｍ以上-Performance evaluation after painting- (1) Water resistance secondary adhesion test After immersing the 3-coat coated plate in deionized water at 40°C for 240 hours, use a sharp cutter to reach the substrate.
After cutting 100 mm square gongs and peeling them off with cellophane tape, the number of peeled gongs was evaluated. ○: Number of peeled pieces 0 △: Number of peeled pieces 1 to 5 ×: Number of peeled pieces 6 or more (2) Corrosion resistance test Cross scratch was made on the painted plate with a sharp cutter so as to reach the base material, and the following a. b. This cycle was repeated 5 times, and the maximum bulge width on one side from the cross scratch after the cycle was measured. Maximum swelling width on one side ○: less than 1.0 mm △: 1.0 to 2.0 mm ×: 2.1 mm or more
【００２０】
−リン酸亜鉛系化成処理液−
処理液Ａ組成 処
理液Ｂ組成 処理液Ｃ組成Ｚｎ２＋
：１．２ｇ／ｌ Ｚｎ２＋：０．８ｇ／ｌ
Ｚｎ２＋：１．６ｇ／ｌＮｉ２＋：１．５ｇ／ｌ
Ｎｉ２＋：１．０ｇ／ｌ Ｎｉ２＋
：２．５ｇ／ｌＭｎ２＋：１．０ｇ／ｌ Ｍ
ｎ２＋：１．５ｇ／ｌ Ｍｎ２＋：０．５ｇ／ｌ
ＰＯ４３− ：１８ｇ／ｌ ＰＯ４３− ：
１５ｇ／ｌ ＰＯ４３−：１２ｇ／ｌＮＯ３−：
７．０ｇ／ｌ ＮＯ３−：５．０ｇ／ｌ
ＮＯ３−：１０．０ｇ／ｌＮＯ２−：０．２ｇ／ｌ
ＮＯ２−：０．１ｇ／ｌ ＮＯ２−
：０．１ｇ／ｌＦ成分：０．４ｇ／ｌ Ｆ成
分：１．５ｇ／ｌ Ｆ成分：１．０ｇ／ｌ-Zinc phosphate-based chemical conversion treatment liquid- Treatment liquid A composition Treatment liquid B composition Treatment liquid C composition Zn2+
:1.2g/l Zn2+:0.8g/l
Zn2+: 1.6g/l Ni2+: 1.5g/l
Ni2+: 1.0g/l Ni2+
:2.5g/lMn2+:1.0g/l M
n2+: 1.5g/l Mn2+: 0.5g/l
PO43-: 18g/l PO43-:
15g/l PO43-: 12g/lNO3-:
7.0g/l NO3-: 5.0g/l
NO3-: 10.0g/l NO2-: 0.2g/l
NO2-: 0.1g/l NO2-
: 0.1g/l F component: 0.4g/l F component: 1.5g/l F component: 1.0g/l
【００
２１】−処理工程−
（１）脱脂［ＦＣ−Ｌ４４６０（日本パーカライジング
社製強アルカリ系クリーナー）Ａ剤：２０ｇ／ｌ，Ｂ剤
：１２ｇ／ｌ］
４２℃ １２０秒 スプレー
（２）水洗［水道水］
常温 ３０秒 スプレー
（３）表面調整［ＰＬ−ＺＮ（日本パーカライジング社
製コロイダルチタン系表面調整剤）１．０ｇ／ｌ］常温
２０秒 スプレー
（４）リン酸塩化成処理
４２℃ １２０ｓｅｃ 浸漬（５）水洗［
水道水］
常温 ３０秒 スプレー
（６）脱イオン水洗［脱イオン水（電導度：０．２μＳ
／ｃｍ）］
常温 ２０秒 スプレー
（７）水切り乾燥 １１０℃ １８０秒（８）
電着塗装
（９）中塗り塗装
（１０）上塗り塗装00
21] - Treatment process - (1) Degreasing [FC-L4460 (strong alkaline cleaner manufactured by Nihon Parkerizing Co., Ltd.) A agent: 20 g/l, B agent: 12 g/l] 42°C 120 seconds Spray (2) Washing with water [tap water ] Room temperature 30 seconds Spray (3) Surface conditioning [PL-ZN (Colloidal titanium surface conditioner manufactured by Nippon Parkerizing Co., Ltd.) 1.0 g/l] Room temperature 20 seconds Spray (4) Phosphate chemical treatment 42°C 120 seconds Immersion (5 ) washing with water [
Tap water] Room temperature 30 seconds Spray (6) Deionized water washing [Deionized water (conductivity: 0.2μS)
/cm)] Room temperature 20 seconds Spray (7) Drain and dry 110℃ 180 seconds (8)
Electrodeposition coating (9) Intermediate coating (10) Top coating
【００２２】
（１）スプレーにて３０秒処理後２分３０秒浸漬（
特開昭５２−１１９４３５号公報開示の実施例１）(1) Spray treatment for 30 seconds and then soak for 2 minutes and 30 seconds (
Example 1 disclosed in Japanese Unexamined Patent Publication No. 119435/1983)
【０
０２３】0
023]
【発明の効果】本発明に係るアルミニウム系金属板のリ
ン酸亜鉛系化成処理方法は、アルミニウム系金属板の浸
漬リン酸亜鉛系化成処理において、リン酸亜鉛系化成処
理液を該金属板に沿って１０〜５０ｍ／ｍｉｎの相対速
度で流動接触させるようにしたことにより、アルミニウ
ム系金属板から溶出したアルミニウムイオンを反応系内
に停滞させることなく排出し、それによって、処理され
るアルミニウム系金属板の表面に、プレス成型性及び塗
装性能を充分に満足させ得るリン酸亜鉛系化成皮膜を形
成させることができるのである。Effects of the Invention The zinc phosphate chemical conversion treatment method for an aluminum metal plate according to the present invention is such that, in the immersion zinc phosphate chemical conversion treatment of an aluminum metal plate, a zinc phosphate chemical conversion treatment solution is applied along the metal plate. By bringing the aluminum ions into fluid contact at a relative speed of 10 to 50 m/min, the aluminum ions eluted from the aluminum metal plate are discharged without stagnation in the reaction system. It is possible to form a zinc phosphate-based chemical conversion film on the surface of the material, which satisfies press moldability and coating performance.
【図１】本発明の化成処理方法を実施する装置の一例を
示す略示的側面図である。FIG. 1 is a schematic side view showing an example of an apparatus for carrying out the chemical conversion treatment method of the present invention.
１ 処理槽 ２ リン酸亜鉛系化成処理液 ３ アルミニウム合金板 ４ ガイドロール ５ ポンプ ６ フローノズル 1 Processing tank 2 Zinc phosphate chemical conversion treatment liquid 3 Aluminum alloy plate 4 Guide roll 5 Pump 6 Flow nozzle
Claims (1)
鉛系化成処理において、リン酸亜鉛系化成処理液を該金
属板に沿って１０〜５０ｍ／ｍｉｎの相対速度で流動接
触させることを特徴とするアルミニウム系金属板のリン
酸亜鉛系化成処理方法。1. In the immersion zinc phosphate-based chemical conversion treatment of an aluminum-based metal plate, a zinc phosphate-based chemical conversion treatment solution is brought into fluid contact with the metal plate at a relative speed of 10 to 50 m/min. Zinc phosphate chemical conversion treatment method for aluminum metal plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8948491A JPH04301082A (en) | 1991-03-28 | 1991-03-28 | Chemical conversion treatment of aluminum metal plate with zinc phosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8948491A JPH04301082A (en) | 1991-03-28 | 1991-03-28 | Chemical conversion treatment of aluminum metal plate with zinc phosphate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04301082A true JPH04301082A (en) | 1992-10-23 |
Family
ID=13972019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8948491A Pending JPH04301082A (en) | 1991-03-28 | 1991-03-28 | Chemical conversion treatment of aluminum metal plate with zinc phosphate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04301082A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006265578A (en) * | 2005-03-22 | 2006-10-05 | Jfe Steel Kk | Galvanized steel sheet for chemical conversion, its manufacturing method, and chemically treated steel sheet |
| WO2010082415A1 (en) * | 2009-01-13 | 2010-07-22 | 日本パーカライジング株式会社 | Surface-treated metallic material and method of treating metal surface |
-
1991
- 1991-03-28 JP JP8948491A patent/JPH04301082A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006265578A (en) * | 2005-03-22 | 2006-10-05 | Jfe Steel Kk | Galvanized steel sheet for chemical conversion, its manufacturing method, and chemically treated steel sheet |
| WO2010082415A1 (en) * | 2009-01-13 | 2010-07-22 | 日本パーカライジング株式会社 | Surface-treated metallic material and method of treating metal surface |
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