介绍
国际标准化组织 (国际标准化组织) 是国家标准机构的全球联盟 (ISO成员机构). 国际标准的制定通常通过ISO技术委员会进行. 每个对已成立技术委员会的主题感兴趣的成员机构都有权在该委员会中派代表参加. 与 ISO 联络的国际政府和非政府组织也参与了这项工作. ISO 与国际电工委员会密切合作 (国际电工委员会) 关于电气标准化的所有问题.

用于开发本文件的程序以及用于进一步维护的程序在第 1 部分中进行了描述。 1 ISO/IEC 指令的. 尤其, 应注意不同类型ISO文件所需的不同批准标准. 本文件根据 ISO/IEC 指令部分的编辑规则起草 2 (请参阅 iso.org/directives).

请注意，本文档的某些元素可能受专利权保护. ISO 不负责识别任何或所有此类专利. 在文件准备过程中确定的任何专利权的详细信息将在 ISO 收到的专利声明的简介和/或列表中找到 (参见 iso.org/patents).

本文档中使用的任何商品名称都是为了方便用户而提供，并不构成认可.

国际标准化组织 8504-2-2019 “使用油漆和相关产品之前钢基材的准备 – 表面处理方法 – 部分 2: 喷砂

自主性, related standards and conformity assessment related ISO specific and express the meaning of terminology as well as in relevant ISO technical barriers to trade (技术性贸易壁垒) 坚持世界贸易组织原则 (世贸组织) 信息, please refer to the iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 35, 油漆和清漆, 小组委员会SC 12, Preparing steel substrates prior to the application of paints and related products.

第三版取消并取代了经过技术修订的第二版 (国际标准化组织 8504-2:2000). The main changes from the previous edition are as follows:

– Updating Article 2, normative reference;

— Edit and revise.

国际标准化组织 8504-2-2019 “使用油漆和相关产品之前钢基材的准备 – 表面处理方法 – 部分 2: 喷砂

ISO 中所有部件的列表 8504 系列可以在 ISO 网站上找到.

有关本文件的任何反馈或问题应直接提交给用户的国家标准机构. A complete list of these institutions can be found at iso.org/members.html.

介绍
The protective coating properties of paint and related products applied to steel are significantly affected by the surface state of the steel before coating. The main factors known to affect this performance are

– The presence of rust and dirt,

– The presence of surface contaminants, 包括盐, 灰尘, 油和油脂, 和

– Surface outline.

国际标准化组织 8504-2-2019 “使用油漆和相关产品之前钢基材的准备 – 表面处理方法 – 部分 2: 喷砂

国际标准化组织 8501 series, 国际标准化组织 8502 series and ISO 8503 series provide methods for assessing these factors, 而ISO 8504 series provides requirements and guidance for preparation methods that can be used to clean steel substrates, indicating the ability of each method to achieve a specified level of cleanliness.

国际标准化组织 8504 series is suitable for new and corroded steel surfaces as well as uncoated or previously coated steel surfaces with paints and related products.

These international standards do not contain provisions for protective coating systems applied to steel surfaces. They do not contain provisions for surface quality requirements for specific cases, 尽管表面质量可以直接影响要应用的保护涂层的选择及其性能. These provisions are found in other documents such as national standards and codes of practice. Users of these international standards should ensure the prescribed quality

– Compatible with and suitable for the environmental conditions to which the steel will be exposed and the protective coating system to be used, 和

– Within the capacity of the specified cleaning procedure.

The main purpose of surface treatment is to ensure the removal of harmful substances and to obtain a surface that allows a satisfactory adhesion of the primer to the steel. It is also designed to help reduce the amount of contaminants that cause corrosion.

Sand blasting cleaning is an effective method for mechanical surface treatment. It is widely used because this surface treatment method has many of the versatile functions listed below.

国际标准化组织 8504-2-2019 “使用油漆和相关产品之前钢基材的准备 – 表面处理方法 – 部分 2: 喷砂

– This method allows for high productivity.

The device can be fixed or mobile and adapted to the object to be cleaned.

– This method is suitable for most types and forms of steel surfaces.

– Many different surface states can be produced, such as different preparation grades and surface profiles.

– Can produce cleaning, shot peening, coarsening, smooth grinding and other effects.

– Can selectively remove partially failed coatings, leaving the sound coating intact.

– Abrasive bounce (rebound) can clean areas that would otherwise be inaccessible.

1 范围
This document specifies a sandblasting cleaning method for preparing steel surfaces prior to application of paint and related products. It provides information about the effectiveness of each method and its field of application. It describes the equipment to be used and the procedures to be followed.

Note that these methods are mainly used for hot rolled steel to remove mill scale, rust, ETC。, but can also be used for cold rolled steel of sufficient thickness to withstand the deformation caused by abrasive impact.

国际标准化组织 8504-2-2019 “使用油漆和相关产品之前钢基材的准备 – 表面处理方法 – 部分 2: 喷砂

2 规范性引用文件
以下文件以文本方式引用，构成本文件的部分或全部要求. 对于注明日期的参考文献, 仅引用的版本适用. 对于未注明日期的参考文献, 新版本的参考 (包括任何修订) 适用.

国际标准化组织 4628-3, 油漆和清漆 – 涂层降解评估 – number and size of defects and assignment of intensity of uniform change in appearance – 部分 3: Assessment of degree of rust

国际标准化组织 8501 (所有部分), Preparation of steel substrates prior to painting and related products – visual assessment of surface cleanliness

国际标准化组织 8502 (所有部分), preparation of steel substrates – surface cleanliness assessment tests prior to coating of paints and related products

国际标准化组织 8503 (所有部分), Preparation of steel substrates prior to coating of paints and related products – sandblasting clean the surface roughness characteristics of steel substrates

国际标准化组织 11124 (所有部分), Specification for preparation of Steel substrates prior to application of paints and related products – Metal blasting abrasive Cleaning

国际标准化组织 11126 (所有部分), Specification for the preparation of steel substrates prior to application of paints and related products – Non-metallic abrasive blasting for cleaning

3 术语和定义
就本文件而言, 以下术语和定义适用.

国际标准化组织 8504-2-2019 “使用油漆和相关产品之前钢基材的准备 – 表面处理方法 – 部分 2: 喷砂

3.1 Sand blasting cleaning

The high kinetic energy abrasive flow is impounded onto the surface to be prepared

3.2 Sand blasting for abrasive cleaning

Solid materials for sandblasting cleaning (3.1)

3.3 Shooting

A predominantly circular particle with a length less than twice the maximum grain width and without edges, broken surfaces, or other sharp surface defects

3.4 碎石

The grain is mainly angular, the surface is broken, the edge is sharp, and the shape is less than half circle

3.5 cylinder

A particle with a sharp edge, with a diameter to length ratio of 1:1, and cut so that its face is approximately at a right Angle to its center line

国际标准化组织 8504-2-2019 “使用油漆和相关产品之前钢基材的准备 – 表面处理方法 – 部分 2: 喷砂

仅标准信息部分是公开的. 查看完整内容, 需要通过官方渠道购买标准.