CN1277447C - 电气设备用部件、电声换能器用部件及其制造方法 - Google Patents

电气设备用部件、电声换能器用部件及其制造方法 Download PDF

Info

Publication number
CN1277447C
CN1277447C CNB028042298A CN02804229A CN1277447C CN 1277447 C CN1277447 C CN 1277447C CN B028042298 A CNB028042298 A CN B028042298A CN 02804229 A CN02804229 A CN 02804229A CN 1277447 C CN1277447 C CN 1277447C
Authority
CN
China
Prior art keywords
electric equipment
mentioned
parts
layer
equipment parts
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.)
Expired - Fee Related
Application number
CNB028042298A
Other languages
English (en)
Other versions
CN1494811A (zh
Inventor
奥泽和朗
中岛正二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CN1494811A publication Critical patent/CN1494811A/zh
Application granted granted Critical
Publication of CN1277447C publication Critical patent/CN1277447C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
    • C23C18/1208—Oxides, e.g. ceramics
    • C23C18/1212—Zeolites, glasses
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
    • C23C18/1208—Oxides, e.g. ceramics
    • C23C18/1216—Metal oxides
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1225—Deposition of multilayers of inorganic material
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/125—Process of deposition of the inorganic material
    • C23C18/1262—Process of deposition of the inorganic material involving particles, e.g. carbon nanotubes [CNT], flakes
    • C23C18/127—Preformed particles
    • 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
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/34—Directing or guiding sound by means of a phase plug
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/024—Manufacturing aspects of the magnetic circuit of loudspeaker or microphone transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49005—Acoustic transducer
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Nanotechnology (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

本发明是具有在表面设有锌或锌合金层的金属部件的表面形成的以胶体二氧化硅为主体的表面处理层和在上述表面处理层的表面形成的保护层的电气设备用部件。上述表面处理层还含有作为金属成分的铝、钛、钴的至少1种。可通过本发明的上述构成提供耐热、耐腐蚀、结合强度优良的金属制电气设备用部件、电声换能器用部件。

Description

电气设备用部件、电声换能器用部件及其制造方法
技术领域
本发明涉及用于各种电气、电子设备的耐腐蚀性能优良的铁系部件的表面处理方法和经表面处理的部件及其制造方法。本发明特别适合用于音响设备的电声换能器所使用的部件及电声换能器的制造。
背景技术
作为各种电气、电子设备的一例，以图4所示的剖面图对迄今为止使用的电声换能器的一种如扬声器进行说明。
图4所示的扬声器是由下述部分构成：由上部板1a、磁铁1b、及有中心支柱的下部板1c构成的磁路1、与磁路1粘附结合的框架2、外周通过边缘部与上述框架2相结合、内周与插入上述磁路1的磁隙1d的音圈4相结合的振动板3、外周与上述框架2相结合、内周与上述音圈4相结合的阻尼器5。
形成如上述构成的扬声器的磁路1的上部板1a、下部板1c及与磁路1粘附结合的框架2是由铁系的金属材料所形成。为了达到防锈(防腐蚀)的目的，对框架2、上部板1a、下部板1c进行镀锌处理，为了进一步提高防锈(防腐蚀)的效果，一般一直采用着在镀锌层上进行铬酸盐处理的方法。
近年来，随着电气设备的小型高性能化的发展，扬声器也有小型化、高输出化的倾向，对扬声器所使用部件的耐热性也有了更高的要求。另一方面，在镀锌层上实施铬酸盐处理的以往的铁系材料的防腐蚀技术方面，可能出现金属表面状态不均匀，使用粘合剂的粘合性不足这样的问题。这可认为是由于表面处理的铬酸盐涂层自身的粘合性不良和铬酸盐涂层的厚度不匀，因此，粘合性也有差异。还有铬酸盐涂膜自身耐热性差的问题。例如铬酸盐涂膜长时间在100℃的气氛中则可能发生镀锌面的龟裂，影响耐腐蚀性。
近年来，有用含有胶体二氧化硅、Ti化合物及Co化合物的处理液处理金属材料的防锈处理液及处理方法的提案。已知采用上述处理方法可得到具有与铬酸盐处理相同水平防腐蚀性的金属材料。
本发明者的研究结果表明，通过对电声换能器的部件进行上述表面处理，不仅可提高防腐蚀性，还可提高部件的粘合强度、耐热强度，从而可制造信赖性优良的电声换能器。
本发明的目的是提供解决上述以往课题的耐热性优良且粘合强度良好的电气设备用部件、电声换能器用部件及其制造方法。
发明内容
本发明是具有在表面设有锌或锌合金的金属部件的表面形成的以胶体二氧化硅为主体的表面处理层和在上述表面处理层的表面形成的保护层的电气设备用部件。上述表面处理层还含有作为金属成分的铝、钛、钴的至少1种。可提供通过上述构成而得到的耐热、耐腐蚀、结合强度优良的金属制电气设备用部件、电声换能器用部件及其制造方法。
图示的简单说明
图1为本发明的一例实施例，扬声器之主要部分的上部板的剖面图。
图2为表示本发明的表面处理工序的流程图。
图3为本实施形态的扬声器的上部板和磁铁的结合强度与以往的扬声器之结合强度的比较图。
图4为本发明与以往的扬声器之耐热性的比较图。
图5为表示以往的扬声器之构成的剖面图。
实施发明的最佳方式
以下，关于本发明的实施形态，以音响转换器的一种如扬声器为例通过图1-图4进行说明。图1-图4中与以往技术相同的部分以相同的符号表示，省略了说明。
图1为本发明的一个实施形态的的上部板的剖面图。图2为表示本发明的表面处理工序的流程图。图3为本发明的上部板和磁铁的结合强度在各保存环境下与以往技术进行比较说明图。图4为在各耐热条件下的结合强度与以往技术进行比较说明图。
本实施形态与以往技术的不同点在于金属部件的表面处理方面。以下对本发明的表面处理部分进行说明。
图1中，在由铁或其合金构成的基体部件1h的表面进行了镀锌1e的上部板1a的表面，再形成表面处理层1f，再在其上形成保护层1g。
以下，关于表面处理的工序以图2进行说明。
在图2所示的工序中，本发明到工序10的镀锌之后的水洗工序为止与以往的技术相同。
本发明经代替以往铬酸盐处理的以胶体二氧化硅为主要成分的无机系表面处理层1f的包覆处理工序(表面处理)11’、干燥工序12’、形成保护层1g的工序(完成处理)13’、及干燥工序14’，在镀锌层1e上进行表面处理。
以下，对本发明的表面处理所使用的材料及其处理方法进行说明。
表面处理工序11’所使用的材料是以胶体二氧化硅为主要成分、还含有氧化铝等胶体状氧化物的水分散液。为了提高涂层的防腐蚀性，还可在该分散液中添加钛、钴等不同金属成分。上述金属以金属醇盐的形态添加于水分散液中时，则形成金属氧化物或氢氧化物的胶体粒子，与分散液中的二氧化硅表面的羟基反应、或吸附于二氧化硅的表面。此外，上述金属以金属盐、金属皂的形态添加时，则通过表面处理后的热处理，最终形成金属氧化物，从而形成对基材的粘附性优良的涂膜。作为钛来源，由于四氯化钛在空气中和水反应生成二氧化钛，因此，以使用稳定的硫酸钛或醇钛为宜。此外，硫酸根在低温下难以蒸发，因此，事先在分散液中使胶体二氧化硅和醇钛反应为宜。
胶体二氧化硅可使用例如市场上出售的日产化学株式会社生产的商品名为SNOWTEX等。该商品有水分散型和醇分散型，但从成本、胶体的稳定性方面考虑，以使用水分散型的胶体二氧化硅为宜。为了更进一步提高干燥涂膜的特性，也可使用在上述胶体二氧化硅中添加了氧化铝的商品。
上述二氧化硅分散液不会发生下述情况，即通常在使用盐酸的酸性状态下处于稳定的状态，但经表面处理后的水洗和干燥，由于盐酸蒸发而对经处理的金属表面产生不良影响。
在上述胶体状分散液中，再添加硅酸乙酯或添加三甲氧基甲基硅烷等反应性硅烷化合物，使其与二氧化硅表面的羟基反应，从而可提高涂膜特性。通过添加硅酸乙酯，可增强形成的涂膜的韧性，得到即使被处理物受到弯曲之类的应力也不发生破损的表面处理层1f。此外，通过添加反应性硅烷进行反应，可增加处理液中的固体成分的浓度，提高涂膜的韧性。
作为表面处理的方法，可将被处理物浸入上述处理液中、或用处理液向处理物喷雾等之后进行干燥(热处理)。在干燥过程中，如果过剩的处理液附着在被处理物上时，则表面处理层1f的表面有泛白现象。泛白的状态下难以得到充分的耐腐蚀性，因此应引起注意。对于过剩处理液的除去，利用离心力的旋转处理方法可适用于大量生产。
干燥温度以80-250℃的范围为宜。低温状态下难以得到充分的涂膜特性，高温干燥的情况下，冷却需要时间，生产性降低。得到的表面处理层1f的耐腐蚀性，干燥温度高的比较好。此外，也可用在处理液中添加硝酸，进行氧化反应来代替上述高温处理。
在形成表面处理层1f之后，进行完成处理。
完成处理使用的处理液其基本的组成也与表面处理液相同。在处理液中添加硝酸，也可在完成处理之前不进行干燥工序，立即实施完成处理。
在本实施形态中，表面处理可使用Yuken工业株式会社制的METAS-ESC(商品名)，作为进行完成处理时的完成处理剂使用水溶性或水分散性的METAS-99。
图3、图4是表示关于磁铁1b和上部板1a的结合强度(结合面积设定为约30cm2)，本发明和以往技术的比较结果。
图3中，
(1)耐热性为在100℃的气氛中放置240小时后的结合强度，
(2)耐寒性为在-40℃的气氛中放置240小时后的结合强度，
(3)耐润湿性为在55℃、95％的气氛中放置500小时后的结合强度，
(4)热冲击试验为以在-40℃的气氛中放置1小时、立即在85℃的气氛中放置1小时的状态作为1个循环，进行1000循环后的结合强度，
图4中耐热性是表示进行了本实施形态的表面处理的上部板1a及进行了以往的表面处理的上部板1a与磁铁结合、加热后的结合强度的变化。加热条件各为在150℃的气氛中放置1小时，在200℃的气氛中放置1小时，在250℃的气氛中放置1小时。图4中的曲线a表示本实施形态的试样，曲线b表示以往技术的试样的结合强度。
图3及图4的结果表明，由本实施形态的试样得到的结合强度，除耐润湿强度与以往技术的试样在同等水平之外，其它特性均优于以往的试样。
此外，再对以本发明的形态实施表面处理的上部板进行盐水喷雾试验。试验条件为在35℃的气氛中以5％NaCl溶液进行8小时喷雾、16小时干燥，以该工序为1个循环，通过目视观察3或6个循环后的表面状态。盐水喷雾试验在3个循环后，以往技术与本实施形态的试样没有发现差别，但6个循环后，以往技术的试样有腐蚀现象，判断为不良。而本发明形态的试样没有腐蚀现象。
在硫化氢试验(通过目视观察在H2S浓度为5ppm的气氛中，放置1000小时后的表面状态)中，本实施形态的试样也没有发现腐蚀现象，而以往技术的试样在500小时时有腐蚀现象，判断为不良。
在上述说明中，对电声换能器的磁路用板的表面处理进行了说明。本发明不仅限于此，当然也可同样适用于经镀锌处理的框架和上部板的结合。此外，本发明也可有效地处理具有腐蚀性的其它电声换能器用部件，例如钕系磁铁等。
如上所述，经本发明的形态进行表面处理的部件具有耐腐蚀性、信赖性高、耐热性优良的性能。因此，本发明可提供信赖性高、耐热性强的电气、电子设备用部件、电声换能器用部件及其制造方法。
本发明的形态作为完成处理剂使用了胶体二氧化硅的水溶性或水分散性树脂，但除此之外还可使用丙烯酸系、密胺系、有机硅系的水溶性或水分散性树脂。
在上述实施形态中，以扬声器为例对本发明作为具有优良特性的电声换能器用部件及其制造方法进行了说明。但当然镀锌或镀锌合金不仅限于电声换能器的用途。
即，本发明作为在要求结合强度高、对耐热性和耐环境性要求信赖性高的场所使用的电气设备用部件和电子、电气设备的部件，其用途广泛。例如本发明可有效地用于电子设备的壳体、各种机械构件的部件等。
产业上利用的可能性
如上所述，本发明是在以铁系材料为主体的部件表面形成耐腐蚀性优良的涂膜。通过形成该涂膜也可提高部件的耐热性。因此特别适合作为耐输入优良的电声换能器和要求耐腐蚀性高的用于汽车的电声换能器用的部件。即，经本发明的处理，可制得构成磁路的磁铁和板的结合强度得到提高，质量优良的小型、重量轻的电声换能器。

Claims (16)

1.电气设备用部件，它具有在表面设有锌或锌合金层的金属部件的表面形成的以胶体状二氧化硅为主体的表面处理层和在上述表面处理层的表面形成的保护层，其特征在于，上述表面处理层还含有作为金属成分的铝、钛、钴的至少1种。
2.根据权利要求1所述的电气设备用部件，其特征在于，上述保护层是以胶体状二氧化硅为主体的层，它选自丙烯酸系树脂层、密胺系树脂层、有机硅系树脂层的至少一种。
3.根据权利要求2所述的电气设备用部件，其特征在于，以上述胶体状二氧化硅为主体的保护层，还含有作为金属成分的铝、钛、钴的至少1种。
4.根据权利要求1-3中任一项所述的电气设备用部件，其特征在于，上述电气设备用部件为电声换能器用的电气设备用部件。
5.根据权利要求4所述的电气设备用部件，其特征在于，上述电气设备用部件为电声换能器的扬声器盆框架或磁路用板、磁铁的至少一种。
6.根据权利要求4所述的电气设备用部件，其特征在于，上述电气设备用部件为汽车用电声换能器的电气设备用部件。
7.电气设备用部件的表面处理方法，它包括在以铁系材料为主体的部件上镀锌的工序、在上述镀锌的表面形成以胶体状二氧化硅为主体的表面处理层的工序和在上述表面处理层的表面形成保护层的工序，其特征在于，上述表面处理层还含有作为金属成分的铝、钛、钴的至少1种。
8.根据权利要求7所述的电气设备用部件的表面处理方法，其特征在于，上述保护层是以胶体状二氧化硅为主体的层，它选自丙烯酸系树脂层、密胺系树脂层、有机硅系树脂层的至少一种。
9.根据权利要求8所述的电气设备用部件的表面处理方法，其特征在于，以上述胶体状二氧化硅为主体的保护层，还含有作为金属成分的铝、钛、钴的至少1种。
10.根据权利要求7-9中任一项所述的电气设备用部件的表面处理方法，其特征在于，上述电气设备用部件为电声换能器用的电气设备用部件。
11.根据权利要求10所述的电气设备用部件表面处理方法，其特征在于，上述电气设备用部件为扬声器盆框架或磁路用板、磁铁的至少一种。
12.根据权利要求10所述的电气设备用部件表面处理方法，其特征在于，上述电气设备用部件为汽车用电声换能器的电气设备用部件。
13.电声换能器的制造方法，它包括在镀锌的磁路用板的表面及镀锌的框架表面形成以胶体状二氧化硅为主体的表面处理层的工序、在上述表面处理层的表面形成保护层的工序和使形成有上述保护层的板及框架与磁铁结合的工序，其特征在于，上述表面处理层还含有作为金属成分的铝、钛、钴的至少1种。
14.根据权利要求13所述的电声换能器的制造方法，其特征在于，上述保护层是以胶体状二氧化硅为主体的层，它选自丙烯酸系树脂层、密胺系树脂层、有机硅系树脂层的至少一种。
15.根据权利要求13所述的电声换能器的制造方法，其特征在于，上述保护层以胶体状二氧化硅为主体，还含有作为金属成分的铝、钛、钴的至少1种。
16.根据权利要求13所述的电声换能器的制造方法，其特征在于，所述热处理在80-250℃进行。
CNB028042298A 2002-05-21 2002-05-21 电气设备用部件、电声换能器用部件及其制造方法 Expired - Fee Related CN1277447C (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/004915 WO2003098968A1 (fr) 2002-05-21 2002-05-21 Element destine a un equipement electrique, element destine a un transducteur electroacoustique et procede de fabrication associe

Publications (2)

Publication Number Publication Date
CN1494811A CN1494811A (zh) 2004-05-05
CN1277447C true CN1277447C (zh) 2006-09-27

Family

ID=27677683

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB028042298A Expired - Fee Related CN1277447C (zh) 2002-05-21 2002-05-21 电气设备用部件、电声换能器用部件及其制造方法

Country Status (6)

Country Link
US (1) US20040156524A1 (zh)
EP (1) EP1536665A4 (zh)
JP (1) JPWO2003098968A1 (zh)
CN (1) CN1277447C (zh)
NO (1) NO20032976D0 (zh)
WO (1) WO2003098968A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108291305A (zh) * 2015-11-27 2018-07-17 索尔维特殊聚合物意大利有限公司 多层组合物及制造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5647587B2 (ja) * 2011-09-21 2015-01-07 株式会社神戸製鋼所 プレコート金属板

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898248A (ja) * 1981-12-08 1983-06-11 日本鋼管株式会社 亜鉛含有層を有する複層表面処理鋼板
JP3353491B2 (ja) * 1994-10-14 2002-12-03 松下電器産業株式会社 スピーカ
JPH09296277A (ja) * 1996-04-30 1997-11-18 Nkk Corp 加工密着性と耐食性に優れた有機樹脂被覆鋼板用亜鉛系めっき鋼板
JPH09296276A (ja) * 1996-04-30 1997-11-18 Nkk Corp 加工密着性に優れた有機樹脂被覆鋼板用亜鉛系めっき鋼板
JP2000015176A (ja) * 1998-06-30 2000-01-18 Nippon Steel Corp 有機被覆亜鉛メッキ鋼板
JP2002129356A (ja) * 2000-10-25 2002-05-09 Nittetsu Corrosion Prevention Co Ltd 耐久性溶融亜鉛めっき鋼材およびそのコーティング方法
JP2002165295A (ja) * 2000-11-29 2002-06-07 Matsushita Electric Ind Co Ltd 電気音響変換器用部材およびその製造方法
AU2003209010A1 (en) * 2002-02-05 2003-09-02 Elisha Holding Llc Method for treating metallic surfaces and products formed thereby

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108291305A (zh) * 2015-11-27 2018-07-17 索尔维特殊聚合物意大利有限公司 多层组合物及制造方法

Also Published As

Publication number Publication date
JPWO2003098968A1 (ja) 2005-09-22
US20040156524A1 (en) 2004-08-12
WO2003098968A1 (fr) 2003-11-27
NO20032976D0 (no) 2003-06-27
CN1494811A (zh) 2004-05-05
EP1536665A4 (en) 2011-01-26
EP1536665A1 (en) 2005-06-01

Similar Documents

Publication Publication Date Title
US6761934B2 (en) Electroless process for treating metallic surfaces and products formed thereby
JP5891243B2 (ja) 表面組織が緻密なマグネシウム合金およびその表面処理方法
JP5663739B2 (ja) 銅の表面調整組成物および表面処理方法
US20040217334A1 (en) Electrolytic and electroless process for treating metallic surfaces and products formed thereby
CA1187352A (en) Polymer coatings and methods of applying same
CN1277447C (zh) 电气设备用部件、电声换能器用部件及其制造方法
US20040069650A1 (en) Method for forming electroplated coating on surface of article
WO2017195803A1 (ja) 金属表面処理用水溶液、金属表面の処理方法、及び接合体
US20050227095A1 (en) Method for coating the surface of metal material with polymer and metal material whose surface is coated with polymer
Yang et al. The preparation and properties of ZnAl coating for ring-shaped bonded NdFeB magnet with high corrosion resistance
CN1709688A (zh) 耐腐蚀镁铝复合材料及其制备方法
US7629023B2 (en) Rust inhibitor
KR101983875B1 (ko) 방열용 금속박, 이의 제조방법, 상기 방열용 금속박을 포함하는 방열용 금속박 적층판 및 다층 인쇄회로기판
JP4156293B2 (ja) 導電性プレコートアルミニウム合金板
JP2006516681A (ja) 電気的腐蝕抵抗性を高めるための予備めっき表面処理
CN1775882A (zh) 粘接剂涂布前处理方法以及铝合金制部件
JP3777461B2 (ja) 耐食マグネシウム合金とその製造方法
JP2943439B2 (ja) 加工性に優れた表面処理ＡｌまたはＡｌ合金材
CN2818136Y (zh) 铝合金零件上的耐蚀性无色涂层
JP4265168B2 (ja) 永久磁石の製造方法
JPS5829660A (ja) 弗素樹脂薄膜複合体およびその製造法
JPH03280402A (ja) 耐蝕性に優れた永久磁石
JP2001322203A (ja) 清浄性に優れる樹脂被覆金属板、前記金属板を用いたｈｄｄケースおよび前記ｈｄｄケースを用いたｈｄｄ装置
JPH04146127A (ja) 樹脂被覆金属板

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee