技术有限公司内部技术规范DKBA0E华为图纸说明规范手册

华为技术有限公司内部技术规范华为图纸说明规范【最新资料，WORD文档，可编辑修改】修订声明Revision declaration本规范拟制与解释部门：华为技术有限公司整机工程部本规范的相关系列规范或文件：无相关国际规范或文件一致性：无替代或作废的其它规范或文件：目录范围: (4)1.标准应用原则52.图框结构说明53.图纸标注说明7. 图面说明7. 压铆件标注 7. 焊接符号标注8. 紧固件材质和表面处理标注84.材料栏内容说明8. 标准材料标注格式8. 非标准材料标注格式 10. 特殊标注115.表面处理代码说明11. 表面处理代码编码规则11. 表面处理代码表示的内容 116.附录17. 常用材料新旧表示对照表 17. 作废代码列表18华为图纸说明规范Specification of Explanation for Huawei Drawings范围:本规范规定了华为技术有限公司结构件设计图的标题栏中各部分的表示规则以及图面标注规则。

本规范适用于华为技术有限公司结构产品的生产和质量检验。

简介：本规范对结构件设计图纸标注进行了说明。

主要介绍了图框各部分所表达的含义，以及结构材料代号和表面处理代号的含义。

关键词：材料，结构，图框，标注，表面处理，代号引用文件：下列文件中的条款通过本规范的引用而成为本规范的条款。

凡是注日期的引用文件，其随后所有的修改单（不包括勘误的内容）或修订版均不适用于本规范，然而，鼓励根据本规范达成协议的各方研究是否可使用这些文件的最新版本。

凡是不注日期的引用文件，其最新版本适用于本规范。

缩略语：术语和定义：•标准应用原则华为产品生产参照的技术资料有：华为图纸、华为企业标准、通信设备行业标准、中国国家标准。

这些标准的优先级别从高到底依次为：华为图纸、华为企业标准、通信设备行业标准、中国国家标准。

当规范与图纸要求不一致的地方，按照图纸要求执行。

在华为企业标准中，产品专用标准优先于产品通用标准。

•图框结构说明标题栏变更说明栏图纸状态栏华为图框有三种，分别是：零件图图框、装配图图框、零件清单图框。

华为零件图图框由标题栏、变更说明栏和图纸状态栏组成；装配图图框在零件图图框的基础上增加了明细表；零件清单图框包含了标题栏、状态栏，只有的组件才会有零件图清单。

•零件图框明细栏变更说明栏图纸状态栏标题栏•装配图框标题栏图纸状态栏•零件清单图框•图框内容说明区域代号中文解释备注标题栏视图投影符号华为图纸一般采用第一视角TITLE名称DWG NO.图号为装配图为部件图为零件图零件清单PART NO.物料编码UNIT'S尺寸单位FINISH表面处理方式参考本规范第5节MSSS(Kg)零部件质（重）量SCALE图纸比例PRODUCT产品名称指零件首次应用该零件的产品SHEET图纸页码OF前的数表示第几页，OF后的数表示共几页•图纸标注说明•图面说明无特殊说明，图纸中所标注的尺寸和公差，应该为零件或装配最终状态的尺寸和公差;带符号的尺寸为关键尺寸，在加工过程要重点保证，带符号的尺寸如果没有标注公差，其公差钣金件参照《钣金冲压件质量要求》、压铸机加件参照《DKBA04000178 压铸机加结构件公差技术要求》、非金属件参照《DKBA04000193 塑料件、橡胶件通用质量要求》中的未注公差。

带（）符号的尺寸为参考尺寸，用来标注尺寸链的封闭环，其值仅作参考。

参考尺寸示例如图4。

•参考尺寸示例图纸中标有1级平面（Level 1 surface如图5）的为1级外观表面，表示对表面外观质量有较高要求，这些部位的表面外观质量必须要满足相应的标准（具体要求在产品质量标准或图纸或工艺质量规范中有详细说明）Level 1 sueface•1级平面标注示意图•压铆件标注压铆紧固件的底孔尺寸不标注，加工商依据设计规格选用紧固件，其底孔的开孔尺寸可以根据工艺的需要进行实配，但压铆之后的质量必须满足《压铆紧固件技术要求》中相对应的参数。

压铆紧固件型号后面加“（on back）”的，表示压铆件凸出较多的部分在视图的反面。

如图6：•压铆标注示意图•焊接符号标注参考《焊接质量要求》。

•紧固件材质和表面处理标注紧固件的材料、表面处理在图号后面加上相应的字母缩写来区分，基材默认状态是碳钢。

各字母代表含义如下：_S：不锈钢_CU：铜_AL：铝_ZC：镀彩锌_H：镀黑锌_N：镀镍_ZnNi：镀锌镍合金_ZnAl：无铬锌铝涂层例如：GB5783-2000_M10x135_S 表示不锈钢六角螺栓GB5783-2000_M10x135_S_ZnAl 表示不锈钢锌铝涂层六角螺栓铆钉不加后缀默认为强度等级为10级的铝铆钉，加后缀“_S”表示拉杆和铆体全为奥氏体的不锈钢铆钉•材料栏内容说明各种材料所用的表达式均以英文字母、阿拉伯数字、以及部分半角标点符号组合而成。

每一表达式的字符数一般不超过25 位。

材料标注的基本原则是：凡是在中国国家标准中有明确的材料牌号（或代号）和加工状态者，都将套用其指定的牌号和状态；没有国家标准、或者需区别同类材料时，按本规范的规定表示•标准材料标注格式图纸中出现以下格式的材料标注方法时，表示所选用的材料为标准材料，这部分材料包含金属材料和非金属材料（塑料、橡胶、复合材料、标签、面膜）。

其中：* 表示填写的内容；式中的标点符号已固定，一般不改变；表达式中不包括空格。

表达式中各字段的详细内容说明见表2。

•标准表达式详细说明【注2】：尺寸中夹带的符号“x”代表数学中的乘号。

例如：1) 冷轧板，材质符合我国的优质碳素冷轧钢08 材料，板材厚度为mm 。

表示为：Fe,08,2) 满足北美版产品质量要求的塑料注塑件，材料为PC，颜色符合YB206“RAL7035”，阻燃等级为5VA。

表示为：Pla,PC/NEBS-YB206-5VA•非标准材料标注格式因部分非金属材料没有国家指定的统一牌号或国际通用的代号，不合适采用节的方法标注，在材料栏中只注明材料名称和规格特征（规格尺寸的表示与节相同）。

例如包装材料、玻璃材料等。

这类材料如果表达内容超过25 个字符，则在设计图中的“NOTES”中进行说明，同时材料栏中表示为“SEE NOTE ....”。

例如：钢化玻璃板，褐色，厚度5mm。

表示为：SEE NOTE 1另在NOTES中：NOTES：1、MATERIAL：BROWN SAFETY GLASS,2、......•特殊标注有一些图纸是在半成品毛坯零件上进行再加工，这时候的图纸材料栏中需要标注这些毛坯零件的图号，即DKBA.......。

这类零件包括压铸件、型材零件、以及其它类似毛坯零件。

例如：由压铸（或型材）毛坯加工而成的零件，其材料栏表示为：；另有部分图纸所用材料在相关产品的定制件规格书中进行质量规定，这类图纸的材料栏中标注的是定制件规格书号，即。

•表面处理栏说明•表面处理方式以表面处理代码表示，每个代码代表了所要求的表面处理工艺方法及质量要求•表面处理代码编码规则表面处理代码以字母加数字表示，其中字母取基体材料名称的拼音中第一位（“通用”代码除外），后三位数字为序号。

标题栏中的表面处理代码代表了该零件所需要进行的最主要表面处理工艺,如果一个零件同时还有部分区域需要是其它表面处理状态，则会在图面中或NOTE中出现相应的标注。

当图纸上出现的代码在后面加有后缀“_1”、“_3”时，仅表示其表面处理质量要求与没有后缀的代码有所不同、而工艺方法一样，详细要求应参见相应工艺质量规范•表面处理代码表示的内容表3 分类列出了每一代码所代表的详细工艺名称、工艺内容及加工所必须遵守的质量标准文件编号以及外观标准样板号。

图纸上出现的表面处理代码的加工处理方式应按表3中对应的工艺及质量说明进行。

表中出现的YB***是华为的外观标准样板代号，关于标准样板的说明参见。

图纸上出现的几个代码相加情况时，表示生产加工时主要按代码顺序分别进行表面处理生产。

这种情况只存在以下三类：1）电镀锌后的局部喷粉（或喷漆）：组合方式为：“电镀锌代码+钢基材喷粉的代码”（例如：G002+G108、G016+G150），表示电镀锌处理后再喷粉，注意此时的喷粉处理可以省略喷粉代码中的“磷化”过程。

2）铝阳极氧化后的局部喷粉（或喷漆）：组合方式为：“阳极氧化代码+铝基材喷粉的代码”（例如：L001+L108），表示阳极氧化处理后再喷粉，注意此时的喷粉处理可以省略喷粉代码中的“化学转化”过程。

3）热浸镀锌后喷涂室外粉末：组合方式为“热浸镀锌代码+钢基材喷室外粉末的代码”（例如：G012+G 153）,表示热浸镀锌处理后再喷粉。

•表面处理代码及其工艺质量说明•附录•常用材料新旧表示对照表表6 列出了本规范表达式与被代替的原表达式之间的对照关系•新旧材料表示法对照•作废表面处理代码列表表5 列举了历史上使用过的、现在已经作废的代码。

如果在生产图纸中还出现有这些代码，则应该要求设计者对表面处理方式进行修改•已经作废的代码•新旧表面处理标注的对应说明历史上的一些表面处理标注方式所表示的含义，参见表6。

•新旧表面处理标注的对应关系ContentsSPECIFICATION OF HUAWEI DRAWINGS (22)1SPECIFICATION APPLICATION PRINCIPLES (24)2DRAWING FRAME DESCRIPTION (24)3MARKED DESCRIPTION OF DIMENSIONS (26)4DESCRIPTION OF MATERIAL BAR (28)Form of Standard Material (28)Format of Non-standard Materials (30)5DESCRIPTION OF SURFACE TREATMENT CODES (31)Indicated by Surface Treatment Codes (31)6APPENDIX (38)and New Notations of Commonly Use Materials (38)and Foreign Marks of Commonly Used Materials (40)Obsolete Codes (41)Specification of Huawei DrawingsApplication ScopeThis document defines the rules of the design drawings for Huawei 2D drawings marked , and the meaning of every parts in the title bar.The document is applicable to the production and quality inspection of Huawei mechanical parts.IntroductionThis document describes the structural design drawings marked. Mainly introduces the meaning of material code and t treatment code.Keywords:Material, structure, drawings frame, marked, treatment, codeDocuments for ReferenceThis document cites the terms of the following specifications. All subsequent changes (excluding the contents of errata) or a revised edition of any dated reference document markedare not applicable to this document. For undated documents, only their latest versions areAcronyms and AbbreviationsTerms and Definitions•Specification Application PrinciplesHuawei products are manufactured based on the following standards and documents, which are sorted by priority: Huawei drawings, Huawei enterprise standards, generic telecommunication equipment standards, and national standards of China. If there is any discrepancy between this document and Huawei drawings, the drawing shall prevail. AmongHuawei enterprise technical standards, dedicated standards take precedence over generic standards.•Drawing Frame DescriptionChange description barDrawing status barTitle bar•Part Drawings FrameDetails barDrawing status barTitle barChange description bar•Assemble Drawing FrameDrawing status barTitle bar•BOM Bill Frame•Describes in a drawing box.•Marked Description of Dimensions•Drawing descriptionUnless otherwise stated, the dimensions and tolerance in the drawings are the final dimensions and tolerance for spare parts or with are key dimensions, and they should be well ensured during manufacturing. For dimensions only signed withDimensions with () are reference dimensions, that are used in closed loop in dimensioning chain, and its value is for reference only. Reference size sample shown in Figure 4.•Reference dimensionLevel 1 suefaceThe surface marked with level 1 surface on the drawing (as shown in 5) is appearance surface, It means that there is a higher quality requirement of the surface appearance, the quality of surface appearance of these parts must meet appropriate requirement (specific requirementsare described detailedly in product quality specification, or in process quality specification,or indrawings)•Level 1 surface description•Riveted part marked•Rivet Fastener Legend•Welding symbols markedsee the DKBA04000139 (Quality Requirements for Welding)•Fastener material and surface treatment markedIt to distinguish the different materials and surface treatment is by the letters which followed by the name of the fastener,and the defaulf material is is the meaning of each letters:_S：the material is stainless steel_Cu：the material is brass_Al：the material is aluminum_ZC：Zinc electroplating with yellow conversion coating_H：Zinc electroplating with back conversion coating_N：Electroplating nickel_ZnNi：Electroplating Zinc- nickel alloy_ZnAl：Zn-Al Flake CoatingExample:GB5783-2000_M10x135_S meanings stainless steel hex boltsGB5783-2000_M10x135_S_ZnAl meanings stainless steel hex bolts with Zn-Al Flake Coating.The rivet without suffix dafect to aluminium rivet,and the strength grade is Lever 10, if with suffix _s means the material of rivet collar and bar are austenite stainless steeel.•Description of Material BarThe notation of every material contains English letters, Arabic numerals and somesingle-byte punctuation symbol. Each notation is not exceeds 25 characters.As a basic principle for notating a material, if the material grades (or code) and the processing state are clearly indicated in a national standard of China, the material grades and processing state must be indicated in the notation; otherwise, the material should be notated in accordance with this Specification or other relevant material selection specifications.•Marked Form of Standard MaterialIf the following marked format of material in the material bar, it means the standard material was selected. These materials contain metallic raw materials and non-metallic materials (plastic, rubber, and compound materials, label, film).Fill in each *. The punctuation symbols in the notation are fixed and should not be changed. The notation must not contain any space.For detail notation description, see 2.•Detail description of material notation①The texts and parentheses in this column are all descriptive information.②The "x”in the dimension values are the multiplication sign.Example:1) Cold-rolled plate, premium cold-rolled carbon steel 08 material compliant with China national standard, with a thickness of mm. The notation is: Fe, 08,2) Injection molded plastic part conforming to the requirements of NEBS, PC material, with a flame retardant grade of 5VA and color of “RAL7035”. The notation is: Pla, PC/NEBS-YB206-5VA•Marked Format of Non-standard MaterialsBecause some nonmetallic materials, such as packing materials and glass materials, do not have state-designated unified marks or international universal codes, they cannot be notated using the method defined in section . In such cases, just indicate the material name and specifications in the material column of the drawings. The specifications are notated in the same way as described in section . If more than 25 characters are needed to note a material exceeds 25 characters, describe the materials in the “Notes” on the design drawing, and fill the material column with “See Note …”.Example:Tempered glass plate, in brown color, with a thickness of 5 mm. Fill the material column with “SEE NOTE 1”.The “Notes”section in the drawing should be as follows:NOTES：1. MATERIAL: BROWN SAFETY GLASS,2. ......•Special Marked_Drawing No.Some pats are machining on the semi-product,which in the material bar is the drawing number of the semi-product(DKBA XXXXX). Such parts include die-cast parts and section parts.•Description of Surface TreatmentThe surface treatment is sepressed by surface treatment code, The surface treatment code is expressed the surface treatment methods and the quality requirement.•Encoding Rules Of Treatment CodesA surface treatment consists of a letter and three digits. The letter is specified by the first Chinese letter of the substrate material. This rule is not applied to the "common" codes. The three digits indicate the sequential number.If there is more than one surface treatment in one part, only the main treatment code filled in the title bar, and others marked in the notes of the drawings.If a surface treatmaent code with a suffix,such as”_1” or”_3”…,which means the surface treatmean quality requirements is different with the code without the suffix,and the precess is the detailed requirements refer to the specification of the process.•Meanings Indicated by Surface Treatment CodesTable 3 lists the process names, process definitions, quality standard document numbers, and OBSERVATIONAL STANDARD numbers. These quality standard documents and OBSERVATIONAL STANDARD s must be followed.The processing methods of the surface treatment in the drawings, which should corresponding to the process and quality instruction in table “YB***”The combination of codes on the drawing indicates that the surface treatments are performed one by one according to the sequence of the codes. This happens only in the following two cases:1）Zinc electroplating followed by local powder coating (painting): The combination is "code of zinc electroplating + code of powder coating on the steel substrate" (for example,G002+G108,G016+G150). The combination indicates zinc electroplating followed by powder coating. Note that phosphating involved in the powder coating process can be omitted.2）Aluminum anodizing followed by local powder coating (painting): The combination is "code of anodizing + code of powder coating on the aluminum substrate" (for example, L001+L108). The combination indicates anodizing followed by powder coating. Note that chemical conversion involved in the powder coating process can be omitted.3）Hot dipping zinc followed by local out-door type powder coating (painting): The combination is "code of Hot dipping zinc + code of out-door type powder coating on the steel substrate" (for example, G012+G153). The combination indicates Hot dipping zinc followed by out-door type powder coating. Note that phosphating involved in the powder coating process can be omitted.•Surface treatment codes and the requirement•Appendix•Old and New Notations of Commonly Use MaterialsTable 4 gives a comparison between the old notations and the new notations define in this specification.•Comparison between old and new notation methods•About Obsolete CodesTable 5lists the obsolete codes. If such codes are found on the drawings, the designer must change the surface treatment method.•Obsolete codes。