CN1397385A - 用于电力设备的耐腐蚀和抗紫外线的制品和工艺 - Google Patents
用于电力设备的耐腐蚀和抗紫外线的制品和工艺 Download PDFInfo
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- CN1397385A CN1397385A CN02125234A CN02125234A CN1397385A CN 1397385 A CN1397385 A CN 1397385A CN 02125234 A CN02125234 A CN 02125234A CN 02125234 A CN02125234 A CN 02125234A CN 1397385 A CN1397385 A CN 1397385A
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- phosphate
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- epoxy resin
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- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 description 1
- KHADWTWCQJVOQO-UHFFFAOYSA-N zinc;oxido-(oxido(dioxo)chromio)oxy-dioxochromium Chemical compound [Zn+2].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KHADWTWCQJVOQO-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B05D7/50—Multilayers
- B05D7/52—Two layers
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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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
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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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
- B05D7/586—No clear coat specified each layer being cured, at least partially, separately
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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
- C23C22/06—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 using aqueous acidic solutions with pH less than 6
- C23C22/07—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 using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Mechanical Engineering (AREA)
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Abstract
一使用在电力设备中或包含电力设备的用耐腐蚀的抗紫外线的复合材料涂层的制品(46)，其制造通过首先在清洗站(14)清洗未涂覆的制品(10)，然后依次用任何类型的运输系统(12、36)将经过清洗的制品经过漂清工作站(16)、磷酸盐粘结涂覆站(18)、漂洗工作站(22)、非铬密封剂涂覆工作站(24)、干燥工作站(26)、加热工作站(30)、环氧树脂涂覆工作站(34)、外部上漆工作站(40)，在该运输系统中，经过环氧树脂涂覆的制品在工作站(40)上最终上漆之前可再次经过前述工作站(14、16、18、22、24、26、30、34)。
Description
本发明的领域
本发明涉及复合涂层，它们同时耐腐蚀和抗紫外线(“UV”)辐射，用于内部和外部元件如变压器、断路器及类似物，带其用在电力设备中的有关壳体，特别是用于室外的电力设备和有关的元件。
背景信息
用于电力设备的保护性涂层在现有技术中是众所周知的，并例如由美国专利说明书NO.3979704和4298656(分别为Buckley等人和Mendelsohn的)中所述，前一专利涉及一种复合涂层，它在粗糙的磷酸锌或磷酸铁层上覆盖以铬酸锌或重铬酸锌层，以用于金属触点，并且测量、触发和支承断路器构件。后一专利涉及可喷涂的、有柔性、抗断裂的、用粘结剂增强的复合材料，以用于发电机转子和绕组，其中，复合材料由双酚A环氧树脂、丁二烯/丙烯腈聚合物、着色颜料、触变剂和固化剂的混合物制成。
在其它领域，美国专利说明NO.5178902和5300336(均为Wong等人的)描述了用于金属管的保护性涂层，该涂层有紧靠管子表面的环氧树脂底层，一聚烯烃(聚乙烯、聚丙烯)外层，和一环氧树脂与聚烯烃混合物中间层。在涂覆工艺中，管子表面用喷砂清理，洗去金属粉尘并加热至175～275℃，然后在单独的静电粉末涂覆室中涂加三个层，在该室中，树脂粒子熔化，彼此粘接。也可以采用后加热，继之以水淬冷。
一系列由3M提供的宣传册公开了环氧树脂粉末涂层的成份，它们为：3MTMScotchkoteTM Fusion Bonded Epoxy Coatings(2000)，pp.1～11；3MTMScotchkoteTM 134 Fusion Bonded Epoxy Coating(1999)，pp.1～4；3MScotchkoteTM 134 Fusion Bonded Epoxy Coating-Information，Propertiesand Test Results(2000)，pp.1～12；和3M ScotchkoteTM 134/135 FusionBonded Epoxy Coating(2000)，pp.1～4，该粉末涂层对金属提供耐腐蚀保护，并可通过流化床、空气喷涂或静电喷涂技术来施加，该静电喷涂技术可用于ScotchkoteTM液态酚醛树脂底层，而且该涂层可以在外面通过多孔结构涂以其它材料，以用于耐磨、紫外线保护和抗冲击。这些组分可包括环氧树脂、固化剂、颜料、催化剂、填充剂和均匀地混合在每个分散的颗粒中的流动控制剂。这些涂层可以加至管路、泵体、阀、流量计、梯子、金属丝筛和钢筋条上，当然还包括其它制品。
还描述了多层聚烯烃系统，它包括一熔化粘结的环氧树脂基础层、一聚乙烯或聚丙烯粘结剂中间层和一聚乙烯或聚丙烯面层。一般的涂覆步骤包括去掉油或者油脂、喷砂清理、预加热、沉积熔接环氧树脂粉末、加热硬化和最后的检查。为了增加颜色，最终的产品可以涂以醇酸漆、丙烯酸清漆或丙烯酸珐琅。
虽然许多环氧树脂涂层提供了卓越的耐腐蚀能力，并且在许多情况下，为了提供优秀的长期耐腐蚀能力，采用了不锈钢，这大大提高了成本，但是在工业中需要的是廉价的复合涂层，该涂层对于极端的室外条件有更强的长期耐腐蚀能力，该涂层还提供了卓越的抗紫外线能力，并且还用于内部的应用。
发明内容
因此，本发明的主要目的为提供一种制品和涉及复合涂覆金属制品通常是电镀的钢的工艺，以提供优秀的韧性(toughness)和耐气候性及卓越的抗紫外线能力，但不需要采用昂贵的不锈钢部件。本发明的另一主要目的为提供一种制品和涉及复合涂层涂覆钢或其它制品的工艺，以对在电力设备中使用的内部和外部部件和有关的但是预计不通电流的部件提供耐腐蚀能力。
这些目的和其它目的都可以通过提供一适用在电力设备中的或包含电力设备的制品而得到满足，该制品包括一具有下列依次的涂层的金属制品：一磷酸盐内层；用于填充磷酸盐层中的小孔的非铬(non-chrome)密封层；热固性填充的环氧树脂层；磷酸盐层；用于填充磷酸盐层中的小孔的非铬密封层；热固性填充的环氧树脂层；和一含有颜料的外油漆层，该层抗紫外线。
最好是，所有涂层的施加量为10～30毫克每平方英尺(0.9～2.8毫克每平方米)左右，外油漆层为具有0.030mm左右至0.090mm左右的厚度的聚酯/聚氨酯漆。金属制品最好为电镀钢。
本发明还涉及一涂覆一种金属制品的方法，它包括：(a)用具有PH值至少为12的碱金属氢氧化物清洗金属制品；然后(b)涂以具有PH值约为4～6的热的磷酸盐水溶液；然后(c)涂以具有PH值约为2.5～3.5的非铬密封层；然后(d)干燥非铬密封层，以填充磷酸盐涂层中的小孔；然后(e)加热有涂层的金属构件至约150～275℃；然后(f)用100％的固体的、热固性充填的环氧树脂熔化粘结涂覆有涂层的热的金属构件；最后(g)用含有颜料的抗紫外线的油漆对有涂层的金属构件上漆。
最好是，在步骤(g)中的最终上漆之前，重复步骤(a)至(f)，并在步骤(a)与(b)之间，和步骤(b)与(c)之间用水清洗钢构件。最好是，金属构件为钢，它在进行任何涂覆之前经过电镀，且油漆为聚酯/聚氨酯漆。
这样，就对所制造的部件提供一极其持久的、整个耐腐蚀的、抗紫外线的厚涂层制品，以用于室内或室外，这些制品在处理和进行涂覆之前可以是经过冲压的、焊接的或机加工的。工艺多数采用无溶剂的、产生最少的有害废气的树脂。工艺还遵守Underwriter实验室的安全标准“1995-UL-1332，用于室外用的电力设备的钢外壳的有机涂层”，该涂层用于曝露在盐雾、潮湿的二氧化碳/二氧化硫和光/水及其类似物中。
附图的简单说明
为了更好地理解本发明，可参看在所附的非限制性图中示出的示例性实施例，该图示出本发明的方法的框图。
本发明的优选的实施例的详细说明
现在参看附图，其中作为10示出一通常为钢的金属制品，该制品已经被电镀，准备进行保护性涂覆。此制品可以例如如图所示为一变压器外壳或一箱子的顶盖，或是其它需要保护，以防腐蚀和/或紫外线(“UV”)辐射的制品。制品10可以是用在断路器中的经过冲压、焊接或机加工的构件以作为不通电流的部件，例如断路器盖的内外表面，和当至闩锁松开时，用于以一快速动作抬起断路器触点臂的弹簧，以及在断路器内用的各种轴和支架及类似物。其它制品可包括但不限于充电站和仪表外壳，动力输出板，空调切断器，安全开关，配电盘，开关设备以及电动机控制中心和封闭的控制器。
制品或构件10首先在清洗站14中用碱金属的氢氧化物的如氢氧化钾或氢氧化钠的水溶液清洗，它们具有至少为12的PH值，最好为约13～14的PH值，通常用浸渍或喷淋。最好将清洗溶液用加热器15加热至约60～82℃(140～180°F)，以提高清洗性能。以后将经过清洗的制品送至水漂清或动力喷淋站16，该站在室温左右操作，以漂清和冷却经过清洗的制品至43℃(110°F)左右。以后就将经过清洗的制品送至具有有关的加热器20磷酸盐化处理站18，在该处，通常用浸渍或动力喷淋施加具有约43～60℃(110～140°F)的磷酸盐水溶液。该磷酸盐水溶液有一约4～6的PH值，最好为4.5～5.5左右的PH值。该磷酸盐溶液可以包含碱金属的磷酸盐如磷酸一钠或磷酸一钾，具有少量的酸如磷酸和表面活化剂，以保证良好的结合。磷酸盐处理步骤对后面施加的层提供卓越的粘附与结合。据信，磷酸盐提供蚀刻的表面，以使环氧树脂和油漆能与钢按物理作用和化学作用结合。
接着，再次将经过涂覆的制品送至水漂清或动力喷淋站22，该站在室温左右操作，以彻底漂清磷酸盐结合涂层并将其冷却至室温附近，即20～25℃(68～77°F)左右。此漂清步骤应当继续20秒至1分钟左右，以使制品的表面在送至下一个密封剂站24时是湿的。
在密封剂站24，湿的经过磷酸盐(化)处理的制品在室温下通过喷淋或浸渍作用涂以具有2.7～3.3的PH值的非铬密封层。在施加密封层后不直接水漂清。密封层在干燥时填充磷酸盐中的小孔。据信，密封层提高了防锈能力，并密封/涂层，以保证油漆用化学方式结合至表面上。密封层可包含酸如磷酸的水溶液中的锰/氟化的化合物。密封层在干燥站26用空气干燥，然后在加热站30用加热器28将经过涂覆的金属制品加热至约177～194℃(350～380°F)，以便进一步干燥密封层。
在站32处，用喷涂枪34通过静电喷涂施加含有100％的固体的热固性环氧树脂、含有充填剂颗粒的粉末。该粉末也可通过植绒(flocking)用空气雾化的粉末施加或通过流化床工艺施加。在离开干燥炉30以后，在位置31处，在粉末喷涂之前，使部件空冷至低于32℃(90°F)。如果部件太热，它就不能正确地涂覆，因为油漆在其涂加时将变硬。部件以后就经过具有优选的温度210～227℃(410～440°F)的固化炉，即站40的44区，18分钟，固化炉使部件达到最低的温度191℃(375°F)至少10分钟。可用的环氧树脂包含环氧树脂、酰胺固化剂和诸如云母、二氧化钛或石英硅石这样的充填剂。这些涂层树脂可广泛地例如从Minnesota Mining andManufactuning Co.(“3M”TM)的商品名为“Scotchkote”TM的环氧树脂粉得到。
在站32上经过树脂涂覆并在炉44中固化以后，经过环氧树脂涂覆的金属制品可再次经过所有的站14、16、18、22、24、26、30和34，或经过下列各站：热磷酸涂层18，漂清22，密封24，干燥和加热站26和30，和环氧树脂涂覆站32。另一种方案为，在站32第一次涂加环氧树脂以后，将经过环氧树脂涂层的制品送至最终的油漆站40。所示的运输带12和36在各个站之间输送制品，但是可以采用任何类型的运输装置。
在站40上，经过一次或两次环氧树脂涂覆的制品通常用手动的修补用的喷涂枪42通过空气粉末喷涂或最好通过静电粉末喷涂以油漆。该油漆为抗紫外线的。一种非常有用的油漆涂层从具有灰色、白色或棕色颜料的聚酯基、聚氨酯基或聚酯/聚氨酯基选取。以后，在炉子44中将有环氧树脂涂层的制品38作最终的固化。涂有油漆的制品以后就与其它部件如变压器柜48或类似物装配在一起。
在站18上涂加的一次或两次磷酸盐层应当按一个10～30mg/ft2(0.9～2.8mg/m2)的量施加；在站24上涂加的一次或两次密封层在干燥后不应当有可以测出的厚度；环氧树脂和油漆层则同时可以根据制品例如在一断路器中是否需要紧的公差或制品例如顶盖46是否可以有厚的涂层而有广泛变动的厚度。
现在用下面的非限制性例子进一步说明本发明。
实施例
一电镀钢仪表箱用预处理步骤，环氧树脂涂覆、附加的预处理步骤，另一环氧树脂涂覆和最终的上漆步骤进行涂覆，多少与图中所示的步骤的顺序相似。
首先，用动力喷淋6％的氢氧化钾溶液进行清洗，该溶液加热至66℃(150°F)，有大于13.0的PH值，比重为1.20～1.30。部件以后用水的动力喷淋在室温下进行清洗，将部件冷却至15℃左右。然后将部件用热磷酸盐溶液动力喷淋进行磷酸盐处理，约2分钟。磷酸盐溶液在使用以前加热至约43～60℃(110～140°F)，并有5.0左右的PH值。磷酸盐溶液含有约10wt％～30wt％的磷酸一钠和各自约1wt％～10wt％的氟化物、磷酸和表面活化剂。此磷酸盐结合剂在市场上可从Henkel Surface Technologies得到，其商品名为“Bonderite1090”。制品然后经过彻底的水动力喷淋约45秒，以将制品冷却至约25℃(77°F)，并为下面的密封步骤提供一湿的表面。
在密封步骤中，湿的经过磷酸盐化处理的制品被浸在一室温的非铬密封剂溶液中，该溶液有3.0左右的PH值。密封剂各自含有1wt％～10wt％的磷酸、氟化物和锰的化合物并且在市场上可从Henkel SurfaceTechnologie得到，其商品名为“Parcolene7100”。以后就使经过密封的制品在空气中干燥约2分钟，此后，在一炉子中加热至约177～193℃(350～380°F) ，以提供一密封的表面，表面热得足以施加可熔化结合的环氧树脂颗粒。前面所施加的涂层非常薄，各自约为10～30mg/ft2，但是，环氧树脂层则较厚，约为0.030～0.088mm。它用静电喷枪施加。环氧树脂颗粒各自含有约10wt％～70wt％的热固性环氧树脂，约30wt％～40wt％的总充填颗粒，约1wt％～5wt％的绿色颜料和约1wt％～3wt％的双氰胺固化剂，该总充填颗粒从云母、二氧化钛和石英硅石的混合物中选取。这是100％的固体环氧树脂，并在市场上可从Minnesota Mining andManufacturing Co.得到，其商品名为“3M ScotchkoteTM 134/135 FusionBonded Epoxy Coating”。此环氧树脂涂层以后在炉子中在约221℃(428°F)下固化约18分钟。
在此步骤之后，制品再次在同样的条件下受到前述的工艺步骤，包括碱洗。作为最终的步骤，两层环氧树脂的涂层用静电喷枪上漆。该油漆为具有灰色颜料的100％固体的聚酯/聚氨酯粉末，它在低于32℃(90°F)的温度下涂加至约0.05mm的厚度。该油漆附加地含有约0.1wt％～1.0wt％的碳黑，约10wt％～30wt％的碳酸钙和约10wt％～30wt％的二氧化钛充填剂。它在市场上可从H.B.Fuller Co.得到，商品名为“IF-8359”。最终的外油漆涂层之后在一炉子中在221℃(430°F)固化约18分钟。
经过涂覆的制品以后另外经受U.L.1332试验、ASTM/G 154(紫外线试验)并显示所有各层的卓越的粘附性，卓越的耐腐蚀能力和很好的抗紫外线能力。
应当理解，本发明可以按其它形式实施而不脱离其精神或主要属性，并且，因此，应当同时参考所附的权利要求书和前面的说明，因为它们指出本发明的范围。
虽然已经详细描述了本发明的特殊的实施例，但是对于热悉本技术的人都应当明白，可以根据公开内容的整个教义对其细节发展各种改进和方案。因此，所公开的特别设计意味着，它只是说明性的，并不限制本发明给出所附权利要求书和其任意的和所有的相当物的整个广泛的范围。
Claims (17)
1. 一使用在电力设备中的或包括电力设备的制品(46)，该制品包括一具有下列依次的涂层的金属构件(10)：一磷酸盐内层；用于填充磷酸盐层中的小孔的非铬密封层；热固性填充的环氧树脂层；磷酸盐层；用于填充磷酸盐层中的小孔的非铬密封层；热固性填充的环氧树脂层，和一含有颜料的外油漆层，该层抗紫外线。
2.如权利要求1的制品(46)，其特征为，金属为钢。
3.如权利要求1的制品(46)，其特征为，金属为具有电镀的涂层的钢。
4.如权利要求1的制品(46)，其特征为，油漆外层包括从由聚酯、聚氨酯及其混合物组成的组中选取的树脂，该层有约0.03～0.090mm的厚度。
5.如权利要求1的制品(46)，其特征为，磷酸盐层包括从由磷酸一钠、磷酸一钾及其混合物组成的组中选取的碱金属磷酸盐。
6.如权利要求1的制品(46)，其特征为，所有涂层的总施加量为约0.9～2.8mg/m2。
7.如权利要求1的制品(46)，其特征为，它是预期不通电流的外部或内部的断路器部件。
8.涂覆一金属制品(46)的方法，它包括：
a)用具有PH值至少为12的碱金属氢氧化物清洗(14)金属制品；
b)涂以(18)具有PH值约为4～6的热的磷酸盐水溶液；
c)涂以(24)具有PH值约为2.5～3.5的非铬密封层；
d)干燥(26)密封层，以填充磷酸盐涂层中的小孔；
e)加热(30)有涂层的金属制品至约177～194℃；
f)用100％的固体的、热固性充填的环氧树脂熔化粘结涂覆(32)涂有涂层的热的金属构件；
g)用含有颜料的抗紫外线油漆给有涂层的金属制品上漆(40)。
9.如权利要求8的方法，其特征为，在步骤(a)和(b)之间和步骤(b)和(c)之间有一水清洗步骤(16、22)。
10.如权利要求8的方法，其特征为，金属制品(46)是钢，它在步骤(a)之前电镀。
11.如权利要求8的方法，其特征为，在步骤(g)之前按顺序重复步骤(a)至(f)。
12.如权利要求8的方法，其特征为，油漆包括从由聚酯、聚氨酯及其混合物组成的组中选取的树脂，它具有约0.030～0.088mm的厚度。
13.如权利要求8的方法，其特征为，磷酸盐溶液包括从由磷酸一钠，磷酸一钾及其混合物组成的组中选取的碱金属磷酸盐。
14.如权利要求8的方法，其特征为，在最终上漆以后，制品(46)在190℃的最低温度下固化。
15.如权利要求8的方法，其特征为，所有涂层的全部施加量为约0.9～2.8mg/m2。
16.如权利要求8的方法，其特征为，在步骤(b)中使用的磷酸盐水溶液对环氧树脂提供一蚀刻的表面。
17.如权利要求8的方法，其特征为，在步骤(c)中施加的非铬密封层的作用为帮助环氧树脂用化学方法与磷酸盐涂层结合。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/908,249 US6562467B2 (en) | 2001-07-18 | 2001-07-18 | Corrosion and UV resistant article and process for electrical equipment |
| US09/908,249 | 2001-07-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1397385A true CN1397385A (zh) | 2003-02-19 |
| CN1281341C CN1281341C (zh) | 2006-10-25 |
Family
ID=25425445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021252343A Expired - Fee Related CN1281341C (zh) | 2001-07-18 | 2002-07-18 | 用于电力设备的耐腐蚀和抗紫外线的制品和工艺 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6562467B2 (zh) |
| EP (1) | EP1277522A3 (zh) |
| CN (1) | CN1281341C (zh) |
| BR (1) | BR0202901A (zh) |
| CA (1) | CA2393884A1 (zh) |
| MX (1) | MXPA02007114A (zh) |
| ZA (1) | ZA200205708B (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089542B (zh) * | 2006-06-16 | 2010-12-22 | 巴尔的摩汽圈公司 | 储液水槽衬里及其敷设方法 |
| CN113042341A (zh) * | 2021-03-01 | 2021-06-29 | 安徽壹叁高分子材料有限公司 | 一种高防腐高耐候燃气专用管道多层粉末涂料涂覆工艺 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2432836A1 (en) * | 2003-06-13 | 2004-12-13 | Robert W. Langlois | Method of powder coating |
| US20050246982A1 (en) * | 2004-05-07 | 2005-11-10 | The Wiremold Company | Floor box and cover therefor |
| US20150068219A1 (en) | 2013-09-11 | 2015-03-12 | Astronautics Corporation Of America | High Porosity Particulate Beds Structurally Stabilized by Epoxy |
| US10362698B2 (en) * | 2017-01-20 | 2019-07-23 | Yaskawa America, Inc. | Method and system for environmental sealing of electrical enclosures |
| CN111941962A (zh) * | 2020-08-28 | 2020-11-17 | 中山市湛蓝科技有限公司 | 一种覆金属箔层压板及其制备方法和生产系统 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3979704A (en) | 1975-05-23 | 1976-09-07 | Westinghouse Electric Corporation | Circuit breaker having members coated with phosphate-chromate protective layers |
| US4298656A (en) | 1980-03-28 | 1981-11-03 | Westinghouse Electric Corp. | Epoxy-elastomer low temperature curable, solventless, sprayable, stator winding adhesive-bracing compositions |
| US4540637A (en) * | 1980-12-29 | 1985-09-10 | Baltimore Aircoil Company, Inc. | Process for the application of organic materials to galvanized metal |
| US5294266A (en) * | 1989-07-28 | 1994-03-15 | Metallgesellschaft Aktiengesellschaft | Process for a passivating postrinsing of conversion layers |
| US5082511A (en) * | 1989-09-07 | 1992-01-21 | Henkel Corporation | Protective coating processes for zinc coated steel |
| DE4031817A1 (de) * | 1990-10-08 | 1992-04-09 | Henkel Kgaa | Verfahren zur passivierenden nachbehandlung von phosphatierten metalloberflaechen |
| US5178902A (en) | 1990-12-21 | 1993-01-12 | Shaw Industries Ltd. | High performance composite coating |
| US5300336A (en) | 1990-12-21 | 1994-04-05 | Shaw Industries Ltd. | High performance composite coating |
| US5433773A (en) * | 1994-06-02 | 1995-07-18 | Fremont Industries, Inc. | Method and composition for treatment of phosphate coated metal surfaces |
| US6027579A (en) * | 1997-07-07 | 2000-02-22 | Coral Chemical Company | Non-chrome rinse for phosphate coated ferrous metals |
| US6509099B1 (en) * | 1999-08-02 | 2003-01-21 | Nkk Corporation | Phosphate-treated steel plate |
-
2001
- 2001-07-18 US US09/908,249 patent/US6562467B2/en not_active Expired - Fee Related
-
2002
- 2002-07-16 EP EP20020255005 patent/EP1277522A3/en not_active Withdrawn
- 2002-07-17 ZA ZA200205708A patent/ZA200205708B/xx unknown
- 2002-07-17 CA CA 2393884 patent/CA2393884A1/en not_active Abandoned
- 2002-07-17 BR BR0202901A patent/BR0202901A/pt not_active IP Right Cessation
- 2002-07-18 CN CNB021252343A patent/CN1281341C/zh not_active Expired - Fee Related
- 2002-07-18 MX MXPA02007114A patent/MXPA02007114A/es active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089542B (zh) * | 2006-06-16 | 2010-12-22 | 巴尔的摩汽圈公司 | 储液水槽衬里及其敷设方法 |
| CN113042341A (zh) * | 2021-03-01 | 2021-06-29 | 安徽壹叁高分子材料有限公司 | 一种高防腐高耐候燃气专用管道多层粉末涂料涂覆工艺 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2393884A1 (en) | 2003-01-18 |
| MXPA02007114A (es) | 2003-01-30 |
| EP1277522A2 (en) | 2003-01-22 |
| EP1277522A3 (en) | 2003-11-19 |
| CN1281341C (zh) | 2006-10-25 |
| US6562467B2 (en) | 2003-05-13 |
| BR0202901A (pt) | 2003-06-03 |
| ZA200205708B (en) | 2003-03-27 |
| US20030017344A1 (en) | 2003-01-23 |
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