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汽车液压助力转向系统清洁度技术要求及测定方法
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QCT 1012-2015
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标准编号: QC/T 1012-2015 (QC/T1012-2015)
中文名称: 汽车液压助力转向系统清洁度技术要求及测定方法
英文名称: Technical requirements and determination for motor vehicles. hydraulic power steering system cleanliness
行业: 汽车行业标准 (推荐)
中标分类: T23
国际标准分类: 43.040.50
字数估计: 9,994
发布日期: 2015-07-14
实施日期: 2016-01-01
引用标准: GB/T 3730.1; GB/T 5179; GB/T 6003.1; GB/T 14039; GB/T 17446; GB/T 20461-2006; QC/T 299.1-2014; QC/T 301-2014; QC/T 303-2014; QC/T 571; QC/T 572-1999; QC/T 573; QC/T 575
起草单位: 江门市兴江转向器有限公司
归口单位: 全国汽车标准化技术委员会
标准依据: 中华人民共和国工业和信息化部公告(2015年 第49号);行业标准备案公告2016年第3号(总第195号)
发布机构: 中华人民共和国工业和信息化部
范围: 本标准规定了汽车液压助力转向系统各部件清洁度技术要求及测定方法。本标准适用于汽车液压助力转向系统部件, 包括:汽车液压助力转向器、转向油泵、转向油罐、转向助力缸、转向油管、接头。
QC/T 1012-2015: 汽车液压助力转向系统清洁度技术要求及测定方法
QC/T 1012-2015 英文名称: Technical requirements and determination for motor vehicles. hydraulic power steering system cleanliness
中 华人 民 共 和 国 汽 车 行 业 标 准
QC/T 1012—2015
汽车液压助力转向系统清洁度技术要求及测定方法
中华人民共和国工业和信息化部 发布
1 范围
本标准规定了汽车液压助力转向系统(以下简称系统)各部件清洁度技术要求及测定方法。
本标准适用于汽车液压助力转向系统部件，包括：汽车液压助力转向器、转向油泵、转向油罐、转
向助力缸、转向油管、接头。
2 规范性引用文件
下列文件对于本标准的应用是必不可少的。凡是注日期的引用文件，仅所注日期的版本适用于
本标准。凡是不注日期的引用文件，其最新版本(包括所有的修改单)适用于本标准。
3 术语和定义
GB/T 3730.1、GB/T 5179、GB/T17446 和 QC/T571 界定的术语和定义适用于本标准。
4 总则
本标准规定了采用重量法测定汽车液压助力转向系统各部件清洁度的方法及结果的评定。
本标准主要针对汽车液压助力转向器解体与不解体两种状态下清洁度的技术要求、测定方法和测定结果的
评定(包括：转向油泵、转向油罐、转向助力缸、转向油管、接头各部件不解体状态下清洁度的技术要求、
测定方法和测定结果的评定)。
5 技术要求
5.1 汽车液压助力转向器
汽车液压助力转向器清洁度指标应符合表1的规定。
5.2 转向油泵
转向油泵应符合 QC/T299.1—2014 中4.8规定的清洁度要求。
5.3 转向油罐
转向油罐应符合 QC/T303-2014 中4.2. 1规定的清洁度要求。
5.4 转向助力缸
转向助力缸应符合 QC/T301—2014 中4.2. 1规定的清洁度要求。
5.5 转向油管
转向油管清洁度要求应符合下列规定：
—— 软管总成应符合 GB/T20461-2006 中7 .8的规定；
— — 硬管总成应按软管总成的80%进行结果评定。
5.6 接头
接头的杂质含量不大于5 mg。
6 测定方法
6.1 准备
6.1.1 按 QC/T573 的规定对人、物和环境做好测定前的准备。
6.1.2 产品终检完成后，按产品正常出厂状态。
6.1.3 清洗用清洗液须按 QC/T573的要求进行过滤。
6.1.4 清洗过程中应保证操作一致，以使结果具有较高的重复性和再现性。
6.2外表清洗
6.2.1在清洗前，所有的孔和管接头都要堵上。
6.2.2用干净的清洗液从外表清洗产品。
6.2.3 此清洗过程产生的混浊液不参与清洁度的评定。
6.3 不解体部件内部清洗
6.3.1 内腔、封闭的产品构件。
6.3.2 检测产品为汽车液压助力转向器、转向油泵、转向助力缸，用干净的进油管从容器中把干净 的清洗液填满产品内部，
在空载的情况下，用手转动，共进行10次循环，收集混浊液于洁净的容器 内；再用一定量洁净的清洗液冲洗、晃动总成，
然后收集混浊液连同磨合后的混浊液在一起。
6.3.3 检测产品为转向油罐、转向油管、接头，用干净的进油管从容器中把干净的清洗液填充产品 内部约2/3体积，
按照前后、左右、上下3个方向各反复摇晃10次，冲洗产品，收集混浊液于洁净的 容器内；重复1 次，将2次的混浊
液收集在一起。
6.3.4 用干净的回油管把混浊液送回容器并收集起来，收集到的混浊液应不少于注入量的90%。
6.3.5 此时收集到的混浊液即可进行检测。
6.4 解体部件的清洗
6.4.1 将产品解体成单个零件或组件。
6.4.2 用连接材料连接起来的紧连接件、拆卸后无法恢复功能的组件等，不需要解体。
6.4.3解体过程中不允许外来杂质和解体零件时产生的杂质(如金属切屑、密封件残骸)带进内腔、 组件或要收集的清洗液中。
6.4.4 按照 QC/T572— 1999中第2章的清洗规定。用清洗液清洗解体零件，所有的可见杂质和使用过后的混浊液要立即收集到容器，并连同6.3所收集到的混浊液一起进行检测。
6.5 过滤
按照 QC/T 572—1999 中第3章的过滤规定。
6.6 烘干、称重
按照 QC/T 572—1999 中第4章的烘干、称重规定。
7 杂质分析
应符合 QC/T 575 的规定。
QC/T 1012-2015
QC
AUTOMOTIVE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.50
T 23
Technical Requirements and
Determination for Motor Vehicles –
Hydraulic Power Steering System Cleanliness
ISSUED ON. JULY 14, 2015
IMPLEMENTED ON. JANUARY 1, 2016
Issued by. Ministry of Industry and Information Technology of PRC
3. No action is required - Full-copy of this standard will be automatically &
immediately delivered to your EMAIL address in 0~60 minutes.
Announcement of Ministry of Industry and Information
Technology of the People's Republic of China
2015 No.49
Ministry of Industry and Information Technology approved 543 industry
standards such as the “Calcium carbide furnace” (standard number, name,
main content and the date of implementation are as shown in Appendix 1),
including 48 mechanical industry standards, 16 automotive industry standards,
15 aviation industry standards, 13 pharmaceutical industry standards, 58 light
industry standards, 86 textile industry standards, 68 chemical industry
standards, 16 metallurgical industry standards, 50 building materials industry
standards, 21 petrochemical industry standards, 2 nonferrous metals industry
standards, 3 nuclear industry standards, AND 147 communications industry
standards, which are all announced hereby.
Appendix. Number, name, and date of implementation of 16 automotive
industry standards.
Ministry of Industry and Information Technology of the
People’s Republic of China
July 14, 2015
Appendix.
Number, name, and date of implementation of 16 automotive industry
standards
No. Standard number Standard name
Number of
standard
replaced
Date of
implementation
49 QC/T 1002-2015 Test method of durability in CH-DY for motorcycles and mopeds
January 01,
50 QC/T 1003-2015
Determination of precious metal
in metal support catalytic
converter for motorcycles
January 01, 2016
51 QC/T 1004-2015
Performance requirements and
bench test methods of
automobile electric vacuum
pump
January 01, 2016
52 QC/T 200-2015
Performance requirements and
bench test methods of reservoir
for air brake equipment of
automobile and trailer
QC/T 200-1995 January 01, 2016
53 QC/T 35-2015
Automobile and trailer –
Specifications and bench test
methods of pressure control
equipment
QC/T 35-1992,
QC/T 36-1992
January 01,
54 QC/T 37-2015
Automobile and trailer –
of bench for pressure regulator
and protector
QC/T 37-1992,
QC/T 38-1992
January 01,
55 QC/T 77-2015
Specifications and bench test
methods of automobile hydraulic
brake wheel cylinder
56 QC/T 1005-2015
Specifications and bench test
methods of automobile antilock
braking system electromagnetic-
hydraulic modulator
January 01, 2016
57 QC/T 1006-2015
Specifications and bench test
methods of automobile antilock
modulator for pneumatic
January 01, 2016
58 QC/T 1007-2015
Evaluating filtration performance
of fuel filters for automobiles –
Method of particle counting
January 01, 2016
59 QC/T 1008-2015 Specifications of tank ventilation filters
January 01,
January 01,
61 QC/T 1010-2015
Specifications and bench test
methods of clutch hydraulic
pressure boosting system
booster
January 01, 2016
62 QC/T 1011-2015 Technical requirements and January 01,
Table of Contents
1 Scope ... 7
2 Normative References ... 7
3 Terms and Definitions ... 8
4 Principle ... 8
5 Technical Requirements ... 8
6 Test Method ... 10
7 Impurity Analysis ... 11
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009 Directives for
This Standard was proposed and under the jurisdiction of National
Technical Committee for Standardization of Automotive (SAC/TC 114).
Drafting organizations of this Standard. Jiangmen Xingjiang Steering Gear Co., Ltd.,
Trw Fawer Commercial Steering (Chuangchun) Co., Ltd., Guangzhou Mechanical
Engineering Research Institute, Hubei Henglong Group, and Nanjing Donghua
Automotive Steering Co., Ltd.
Chief drafting staffs of this Standard. Wang Gui, Xiao Jianyong, Chen Yaohui, Qi Weili,
Min Xinhe, Fu Zaoqing, Chen Chunhau, and Zhang Peng.
Technical Requirements and
Hydraulic Power Steering System Cleanliness
1 Scope
This Standard specifies the technical requirements and determination for cleanliness
of automotive hydraulic power steering system (hereinafter referred to as system)
components.
This Standard is applicable to the automotive hydraulic power steering system
components including automotive hydraulic power steering gear, steering oil pump,
steering oil tank, steering power cylinder, steering oil tube, and joint.
2 Normative References
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 3730.1 Motor Vehicles and Trailers – Types – Terms and Definitions
GB/T 5179 Motor Vehicles – Steering System – Terms and Definitions
GB/T 6003.1 Test Sieves of Metal Wire Cloth
GB/T 14039 Hydraulic Fluid Power – Fluids - Method for Coding the Level of
Contamination by Solid Particles
GB/T 17446 Fluid Power Systems and Components – Vocabulary
Steering Systems – Specification
QC/T 299.1-2014 Automobile Hydraulic Steering Power Pump – Part 1. Technical
Requirements
QC/T 301-2014 Technical Requirements and Test Methods for Motor Vehicles
Power Cylinder
The impurity content of joints shall be no greater than 5mg.
6 Test Method
6.1 Preparation
6.1.1 Make the pre-test preparation for the people, things and environment as per
6.1.2 After the final inspection of the product, normal exit-factory state shall be
subject to.
6.1.3 The cleaning solution for cleaning shall be filtered as per the requirements of
QC/T 573.
6.1.4 The operation shall be maintained consistent during the cleaning process, so
that the results have higher repeatability and producibility.
6.2 Appearance cleaning
6.2.1 Before cleaning, all holes and tube joints shall be blocked.
6.2.2 Use clean cleaning solution to clean the product from the appearance.
the evaluation of cleanliness.
6.3 Internal cleaning of the non-disassembled components
6.3.1 Inner-cavity, and sealed product components
6.3.2 The test products are automotive hydraulic power steering gear, steering oil
pump, steering power cylinder; use clean inlet tube to fill the product internal part with
clean cleaning solution from the container; under no-load condition, rotate by hand,
circulate for 10 times; collect the turbid liquid into clean container; wash with certain
amount of clean cleaning solution, shake the assembly, then collect the turbid liquid
together with that generated after the grinding.
tube to fill the 2/3 volume of product internal part with clean cleaning solution from the
container; then shake for 10 times in the front and back, left and right, up and down
directions; wash the products; collect the turbid liquid into the clean container; repeat
the operation for once; then collect the turbid liquid generated during the two
operations.
6.3.4 Use the clean oil return tube to return the turbid liquid to the container and
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