MIL-A-8625F-TYPE I&II.doc

MILITARY SPECIFICATIONANODIC COATINGS FOR ALUMINUM AND ALUMINUM ALLOYSThis specification is approved for use by all Departments and Agencies of the Department of Defense.1. SCOPE1.1 Scope. This specification covers the requirements for six types andtwo classes of electrolytically formed anodic coatings on aluminum andaluminum alloys for non-architectural applications (see 6.1). ~1.2 Classification. The anodic coating Types and Classes covered by thisspecification are as specified herein (see 6.2 and 6.21):1.2.1 TypesTYPE I --Chromic acid anodizing, conventional coatings produced from chromic acid bath (see 3.4.1)TYPE II --Sulfuric acid anodizing, conventional coatings produced from sulfuric acid bath (see 3.4.2)3.4.1 Type I, IB, and IC coatinqs. Type I and IB coatings shall be theresult of treating aluminum and aluminum alloys electrolytically in a bathcontaining chromic acid to produce a uniform anodic coating on the metalsurface. Type IC coatings shall be the result of treating aluminum andaluminum alloys electrolytically in a bath containing mineral or mixedmineral/organic acids (non-chromic acid) to produce a uniform anodic coatingon the metal surface. Unless otherwise specified in”the contract, purchaseorder or applicable drawing, Type I coatings shall not be applied to aluminumalloys with a nominal copper content in excess of 5.0 percent; nominal siliconcontents in excess of 7.0 percent; or when the total allowable contents ofnominal alloying elements exceed 7.5 percent. Heat treatable alloys which areto receive a Type I, IB, or IC coating shall be in the required temperobtained by heat treatment, such as -T4, -T6, or T73, prior to anodizing.3.4.2 Type II and 116 coatlnqs. Type II and 116 coatings shall be theresult of treating aluminum and aluminum alloys electrolytically in a bathcontaining sulfuric acid to produce a uniform-anodic coating on-the metalsurface. Heat treatable alloys shall be in the required temper obtained byheat treatment, such as -T4, -T6,or T73, prior to anodizing.Class 1 -Non-dyed (see 3.5.)Beneficial comments (recommendations, additions, deletions) and anypertinent data which may be of use tn improving this document should beaddressed to: commanding Officer, Naval Air Warfare Center AircraftOivtslon Lakehurst, Code SR3, Lakehurst, NJ 08733-5100, by using theself-addressed Standardization Document Improvement Proposal (DD Form 1426)appearing at the end of this document or by letter.3.5 Class 1. When class 1 is specified in the contract or purchase order(see 6.2), the anodic coating shall not be dyed or pigmented. Any naturalcoloration resulting from anodic treatment with the various alloy compositionsshall not be considered coloration. The characteristic color Imparted by thesealing process shall also be considered as non-dyed.6.2 Acquisition requirements. Acquisition documents should specify the following:a. Title, number and date of this specification.b. Type of anodic coating (see 1.2.11).c. Class of anodic coatinq (see 1.2.21). d. Special process operatinq conditions, if applicable ( see 3.2).e. Special cleaning and fabrication requirements (see 3.3.1, 3.3.2,and 3.3.3).f. If coating weight for Type IC can exceed the maximum specified inTable I.g. Color and uniformity of Class 2 coatings, if applicable (see 3.6.1 and 3.12}.h. Degree of non-uniformity of dyed casting alloys (see 3.6.1.1).i. Light fastness resistance, if applicable, and a Delta E value if different than 3 (see 3.7.1.3).j. Type III coating thickness, if applicable (see 3.7.2.1).k. Coating weight for thickness, Type III, if substituted (see 3.7.2.1.1).l. Special sealing requirements (see 3.8).m. When applicable, the allowable difference in anodic coating appearance resulting from inherent base metal differences (see 3.13).n. Provide the specific location of contact marks if important to the function of the part (see 3.13.1 and 6.14).o. Acceptance criteria for quality conformance inspections (see 4.4.2 and 6.20).P. If paint adhesion testing is required for quality conformance testing (see 4.4) and the required paint system (if different than that in 4.4.3.1).MMC（MultiMedia Card）卡由西门子公司和首推CF的SanDisk于1997年推出。

1998年1月十四家公司联合成立了MMC协会（MultiMedia Card Association简称MMCA），现在已经有超过84个成员MMC的发展目标主要是针对数码影像、音乐、、PDA、电子书、玩具等产品，号称是目前世界上最小的Flash Memory存贮卡，尺寸只有32mm x 24mm x 1.4mm虽然比SmartMedia厚，但整体体积却比SmartMedia小，而且也比SmartMedia轻，只有1.5克MMC也是把存贮单元和控制器一同做到了卡上，智能的控制器使得MMC保证兼容性和灵活性MMC引1.MMC卡　　基本信息　可以使用Microsoft Management Console (MMC)创建、保存或打开管理工具(称为MMC控制台)来管理硬件、软件和Windows系统的网络组件MMC是Win2000操作系统的一个特性,但也可以在WinNT、Win95和Win98操作系统上运行MMC另外,MMC是许多设计在Windows上运行的软件程序的特性 简介 　　MMC存贮卡可以分为MMC和SPI两种工作模式，MMC模式是标准的默认模式，具有MMC的全部特性而SPI模式则是MMC存贮卡可选的第二种模式，这个模式是MMC协议的一个子集，主要用于只需要小数量的卡（通常是1个）和低数据传输率（和MMC协议相比）的系统，这个模式可以把设计花费减到最小，但性能就不如MMC。

　　MMC被设计作为一种低成本的数据平台和通讯介质，它的接口设计非常简单：只有7针！接口成本低于0.5美元，相比之下SmartMedia和Memory St。