SAE J400-2022 表面涂层耐崩裂性测试-北极星标准文库翻译中文版

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__________________________________________________________________________________________________________________________________________
SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely
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SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and
suggestions.
Copyright © 2022 SAE International
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying,
recording, or otherwise, without the prior written permission of SAE.
TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)
Tel: +1 724-776-4970 (outside USA)
Fax: 724-776-0790
Email: CustomerService@sae.org
SAE WEB ADDRESS: http://www.sae.org
For more information on this standard, visit
https://www.sae.org/standards/content/J400_202208/
SURFACE VEHICLE
RECOMMENDED PRACTICE
J400™
AUG2022
Issued 1968-07
Reaffirmed 2012-10
Revised 2022-08
Superseding J400 OCT2012
Test for Chip Resistance of Surface Coatings
RATIONALE
SAE J400 is being revised to correct some technical errors and to make the standard easier to follow.
1. SCOPE
This SAE Recommended Practice covers a laboratory procedure for testing and evaluating the resistance of surface coating
to chipping by gravel impact. The test is designed to reproduce the effect of gravel or other media striking exposed paint or
coated surfaces of an automobile. The specific intent of the test is to evaluate organic surface coatings or systems on flat
test panels; however, it may be possible to extend this type of testing to finished parts or other types of materials such as
anodized aluminum or plated plastics if the results are interpreted with respect to the limitations and intent implied by the
original testing procedures and rating system.
This document may involve hazardous materials, operations, and equipment. This document does not purport to address
all of the safety problems associated with its use. It is the responsibility of whoever uses this document to consult and
establish safety and health practices and determine the applicability of regulatory limitations prior to use.
All dimensions are nominal unless otherwise noted.
2. REFERENCES
2.1 Applicable Documents
The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the
latest issue of SAE publications shall apply.
2.1.1 SAE Publications
Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA
and Canada) or +1 724-776-4970 (outside USA), www.sae.org.
SAE Chipping Rating Standards (part number EA-400)
__________________________________________________________________________________________________________________________________________
SAE技术标准委员会规则规定：“本报告由SAE发布以推动技术和工程科学的发展。本报告的使用完全出于自愿，其适用性及对任何特定用途的适合性（包括由此产生的任何专
利侵权）均由用户自行负责。”
SAE每五年至少对每份技术报告进行一次审查，届时可能对其进行修订、重申、稳定或取消。SAE欢迎您提出书面意见和建议。
版权所有©2022SAEInternational
保留所有权利。未经许可，不得以任何形式或通过任何方式（电子、机械、影印、
recor ding,oro therwise,w ithout the priorwr ittenperm ission ofSAE。
文件订购方式： 电话：877‑606‑7323（美国及加拿大境内）
电话：+1 724‑776‑4970（美国境外）
传真：724‑776‑0790
电子邮箱：CustomerService@sae.org
SAE官方网站： http://www.sae.org
如需了解此标准更多信息，请访问
https://www.sae.org/standards/content/J400_202208/
地面车辆推荐实践 J400TM AUG2022
发布日期 1968‑07
重申 2012‑10
Revised 2022‑08
替代J400OCT2012
表面涂层抗碎屑测试
修订理由
SAEJ400正在进行修订，以纠正一些技术错误并使标准更易于遵循。
1.范围
本SAE推荐实践涵盖了一项实验室测试程序，用于评估表面涂层对碎石冲击导致剥落的抵抗能力。该测试旨在模拟碎石或其
他介质撞击汽车裸露漆面或涂层表面的效果，其核心目的是评估平面测试板上有机涂层或涂层系统的性能；但若结合原始
测试流程与评级体系的限制条件和设计意图进行结果解读，此类测试或可扩展至成品零件或其他材料类型（如阳极氧化铝
或电镀塑料）。
本文件可能涉及危险材料、操作及设备，但并未涵盖与其使用相关的所有安全问题。使用方有责任在使用前咨询并制定安
全健康规范，同时确认法规限制的适用性。
除特别标注外，所有尺寸均为标称值。
2.参考文献
2.1适用文件
下列出版物构成本规范的一部分，其适用范围以本文规定为准。除非另有说明，否则应采用SAE出版物的最新版本。
2.1.1SAE出版物
可从SAEInternational获取，地址：400CommonwealthDrive,Warrendale,PA15096‑0001，电话：877‑606‑7323（美国和加拿大境内）或
+1 724‑776‑4970（美国境外），www.sae.org。
SAE碎石冲击评级标准（零件编号EA‑400）
SAE INTERNATIONAL J400™ AUG2022 Page 2 of 12
2.2 Related Publications
The following publications are provided for information purposes only and are not a required part of this SAE Technical
Report.
2.2.1 SAE Publications
Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA
and Canada) or +1 724-776-4970 (outside USA), www.sae.org.
Young, T. and Hays, D., "Measurement of Chipping of Automotive Finishes," SAE Technical Paper 680046, 1968,
doi:10.4271/680046.
3. SUMMARY OF METHOD
The test consists of projecting standardized road gravel by means of a controlled air blast onto a suitable test panel. The
testing apparatus is called a gravelometer, designed to contain road gravel, a test panel holder, and a gravel projecting
mechanism. The projecting mechanism, located in front of the test panel, consists of an air nozzle in the base of an inverted
pipe tee. The stem of the pipe tee points upward and is located beneath a vibrating hopper into which the gravel is poured.
The gravel, falling into the air blast, is projected toward and impacts upon the test panel, which is usually held perpendicular
to the impinging gravel. All testing is conducted under controlled temperature conditions, generally room temperature
(ambient) or −29 °C ± 3 °C (–20 °F ± 5 °F). After the gravel impact, tape is applied to remove any loose paint chips remaining
on the panel, and the degree of chipping is determined by visual comparison with the SAE Chipping Rating Standards1, by
counting the number and sizes of all chips, or by other methods deemed suitable between the contractual parties involved.
4. EQUIPMENT AND MATERIALS
4.1 Gravelometer
A gravel projecting test apparatus which is constructed according to the design specifications shown in Figures 1A and 1B.
1Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001—Identified as EA-400.
SAEINTERNATIONAL J400TMAUG2022 第2页，共12页
2.2相关出版物
以下出版物仅供参考，并非本SAE技术报告的必备组成部分。
2.2.1SAE出版物
可向SAEInternational获取，地址：400CommonwealthDrive,Warrendale,PA15096‑0001，电话：877‑606‑7323（美国和加拿大境
内）或+1 724‑776‑4970（美国境外），www.sae.org。
Young,T.和Hays,D.,《汽车漆面崩裂性测量》，SAE技术论文680046，1968年，doi:10.4271/680046。
3.方法概述
本测试通过受控气流将标准化道路碎石喷射至合适试板上。测试装置称为碎石冲击仪，其设计包含碎石储仓、试板固定架及
碎石喷射机构。喷射机构位于试板正前方，由倒置三通管底部的空气喷嘴构成。三通管支管朝上，位于振动料斗下方，碎石
由此注入。碎石落入气流后射向试板并产生冲击，试板通常垂直于碎石冲击方向放置。所有测试均在控温条件下进行，通常
为室温（环境温度）或−29 °C至± 3 °C（–20°F至± 5 °F）。碎石冲击后，使用胶带清除试板上残留的松散漆屑，并通过以下
方式评定崩裂程度：与SAE崩裂评级标准1, 进行目视比对、统计所有崩痕的数量与尺寸，或采用合同相关方认可的其他适用
方法。
4.设备与材料
4.1碎石冲击试验机
一种根据图1A和1B所示设计规格建造的碎石投射测试装置。
1
可从SAEInternational获取，地址：400CommonwealthDrive,Warrendale,PA15096‑0001——标识为EA‑400。
SAE INTERNATIONAL J400™ AUG2022 Page 3 of 12
Figure 1A - Test apparatus with 90 degree impingement angle
SAEINTERNATIONAL J400TMAUG2022 第3页，共12页
图1A-采用90度冲击角度的测试装置

标签： #涂层

摘要：

本文档提供 SAE J400-2022 表面涂层耐崩裂性测试的北极星标准文库翻译中文版，全面解析该国际标准的技术要求、测试方法与评估流程。SAE J400 标准主要针对汽车及工业用涂层材料在高速冲击下的抗崩裂性能进行规范，适用于评估涂层在碎石、砂砾等颗粒冲击下的耐久性。本中文翻译版本严格遵循原文技术数据与术语定义，支持工程师、质检人员及研发团队快速理解并应用该标准于产品开发与质量控制环节。内容涵盖测试设备校准、试样制备、冲击参数设置及结果判定等级等核心模块，为涂层耐崩裂性能提供可靠依据，助力提升

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